CN113157612B

CN113157612B - Interface adapting circuit and display device

Info

Publication number: CN113157612B
Application number: CN202010327317.1A
Authority: CN
Inventors: 孙学斌
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2020-01-22
Filing date: 2020-04-23
Publication date: 2022-12-13
Anticipated expiration: 2040-04-23
Also published as: CN113163143B; CN113163143A; CN113163142B; CN113157358A; CN113163238B; CN113163241A; CN113163239A; CN113163243B; CN113157358B; CN113163241B; CN113163243A; CN113163538A; CN113163140B; CN113163237B; CN113157612A; CN113163142A; CN113163242A; CN113163238A; CN113163239B; CN113163242B

Abstract

The embodiment of the application provides interface adaptation circuit and display device, based on motor drive circuit and motor control circuit in this interface adaptation circuit, can realize the level control to the first power pin of USB interface and the first ground pin of USB interface for the USB interface can be general to motor and storage device etc. thereby can reduce the quantity of customization interface, reduce cost, convenience of customers operation.

Description

Interface adapting circuit and display device

The present application claims priority from the chinese patent application filed on 22.01.2020/01, having application number 2020100747123 and having application name "display device", the entire contents of which are incorporated herein by reference.

Technical Field

The present application relates to the field of electronic technologies, and in particular, to an interface adapter circuit and a display device.

Background

With the development of electronic technology, there is a growing trend for televisions with motorized modules, such as comprising: camera lift module, TV rotation module etc. because some electronic modules are external, need pass through interface connection, just can realize the control to electronic module.

In the prior art, customized ports are usually set for different electric modules, but the customized ports are often very expensive, and the interfaces in equipment such as televisions are various and complicated, which affects user experience.

Disclosure of Invention

The embodiment of the application provides an interface adaptation circuit and a display device, so that the universality of an interface is improved.

In a first aspect, an embodiment of the present application provides an interface adaptation circuit, including: a motor drive circuit and a motor control circuit;

the motor driving circuit comprises a first end, a second end, a third end and a fourth end; the first end and the second end are used for connecting the motor control circuit; the third end is used for connecting a first power supply pin of a Universal Serial Bus (USB) interface, and the fourth end is used for connecting a first grounding pin of the USB interface;

the motor control circuit is used for sending control signals to the first end and the second end according to the type of equipment accessed in the USB interface;

the motor driving circuit is configured to output a first level at the third terminal and output a second level at the fourth terminal according to control signals received by the first terminal and the second terminal from the motor control circuit, where the first level and the second level are used to supply power to an external device.

In a possible design, the motor control drive circuit includes a fifth terminal, and the fifth terminal is used for connecting the second ground pin of the USB interface.

In one possible design, the power distribution PD control chip is further included; the PD control chip is used for connecting the motor control circuit and a CC pin of the USB interface;

the PD control chip is specifically configured to communicate with a device accessed in the USB interface, determine a type of the device accessed in the USB interface, and output a first signal indicating the type of the device accessed in the USB interface to the motor control circuit.

In a possible design, in a case where the device connected to the USB interface is a motor device, the motor driving circuit is configured to output a motor driving signal at the third terminal and the fourth terminal according to a control signal received by the first terminal and the second terminal from the motor control circuit.

In a possible design, in a case where the device connected to the USB interface is a memory device or a control device, the motor driving circuit is configured to output a fixed first level at the third terminal and a fixed second level at the fourth terminal according to the control signals received by the first terminal and the second terminal from the motor control circuit.

In one possible design, the motor drive circuit is an H-bridge motor drive circuit.

In one possible design, the USB interface is a type C USB interface.

In a second aspect, an embodiment of the present application provides an interface adaptation circuit, including: a motor and a resistor;

the motor is used for being connected between a first power supply pin of a Universal Serial Bus (USB) interface and a first grounding pin of the USB interface and rotating according to the level output by the first power supply pin and the first grounding pin;

one end of the resistor is used for being connected to a second grounding pin of the USB interface;

and the other end of the resistor is used for accessing a CC pin of the USB interface.

In a third aspect, an embodiment of the present application provides an interface adaptation circuit, including: the motor and the power distribution PD control chip;

one end of the PD control chip is used for accessing a CC pin of the USB interface;

the other end of the PD control chip is used for outputting a first signal for representing the type of equipment accessed in the USB interface to a motor control circuit;

the PD control chip is specifically configured to communicate with a device accessed in the USB interface, and determine a type of the device accessed in the USB interface.

In a fourth aspect, an embodiment of the present application provides a display device, including the interface adaptation circuit described in any one of the above, further including: the USB interface and the display screen.

To sum up, in the embodiment of the present application, an interface adapter circuit is provided, based on a motor driving circuit and a motor control circuit in the interface adapter circuit, level control over a first power pin of a USB interface and a first ground pin of the USB interface can be realized, so that the USB interface can be universal to a motor, a storage device and the like, thereby reducing the number of customized interfaces, reducing cost, and facilitating user operation.

Drawings

Fig. 1 is a schematic diagram illustrating an operation scenario between a display device and a control apparatus;

fig. 2 is a block diagram schematically showing a configuration of the control apparatus 100 according to an exemplary embodiment;

fig. 3 is a diagram schematically illustrating a hardware configuration of a hardware system in the display apparatus 200 according to the exemplary embodiment;

FIG. 4 is a schematic diagram illustrating an interface on a display device;

fig. 5 is a schematic diagram illustrating a connection relationship between a power supply board and a load;

fig. 6 is a block diagram illustrating a hardware architecture of a display device;

fig. 7 is a schematic view schematically showing a functional configuration of a display device;

fig. 8 shows a schematic circuit diagram of an exemplary electromechanical device;

fig. 9 is a schematic diagram illustrating a circuit configuration of a storage or control device;

FIG. 10 is a schematic diagram illustrating a USB Type-C interface;

fig. 11 is a schematic diagram illustrating the structure of the interface adaptation circuit;

fig. 12 is a schematic diagram illustrating a specific structure of an interface adaptation circuit;

fig. 13 is a schematic diagram illustrating a circuit configuration of a connection motor device;

fig. 14 is a schematic diagram illustrating a circuit configuration for connecting a storage device or a control device;

fig. 15 is a schematic circuit diagram illustrating an actual implementation;

fig. 16 is a schematic diagram illustrating another specific structure of the interface adapting circuit;

fig. 17 is a schematic diagram illustrating another circuit configuration of a connection motor device;

fig. 18 is a schematic diagram illustrating another circuit configuration of a connection storage device or a control device;

a schematic diagram of a circuit structure of another practical implementation is exemplarily shown in fig. 19.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The interface adaptation circuit of the embodiment of the application can be used for displaying the adaptation of the set Universal Serial Bus (USB) interface, based on the motor drive circuit and the motor control circuit in the interface adaptation circuit, the level control of the first power pin of the USB interface and the first grounding pin of the USB interface can be realized, the USB interface can be Universal to the motor, the storage device and the like, the number of the customized interfaces can be reduced, the cost is reduced, and the operation by a user is facilitated.

First, the structure, function, and implementation of the display device will be described in detail.

Some display devices with split type are currently a new type, for example: a split TV. The separate type display apparatus can separate the display screen from the display apparatus main body as a separate structure setting, that is, the separate type display apparatus includes at least: a host (which may be referred to as a "box" in some specific product implementations), and a display screen connected to the host; the host is used for generating display content, connecting a power supply and the like, supplies power to the display screen and transmits the content to be displayed to the display screen for display, and the display device is used for displaying the content to be displayed transmitted by the host. By adopting the split structure, the display screen of the display device can be lighter and thinner.

More specifically, the application discloses rotatable split type display device can realize display device's display screen's rotation to and reduce the complexity of the connecting wire between display device host computer and the display screen. The display screen can rotate in the installation plane, for example, the display screen is parallel to the wall surface and is installed on the wall body, then the installation screen of the display screen is parallel to the wall surface, and the display screen can rotate 360 degrees in the installation plane parallel to the wall surface.

The concept to which the present application relates will be first explained below with reference to the drawings. It should be noted that the following descriptions of the concepts are only for the purpose of facilitating understanding of the contents of the present application, and do not represent limitations on the scope of the present application.

The term "module," as used in various embodiments of the present application, may refer to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the functionality associated with that element.

The term "remote control" as used in the various embodiments of the present application refers to a component of an electronic device (e.g., a display device as disclosed herein) that is capable of wirelessly controlling the electronic device, typically over a relatively short distance. The component may typically be connected to the electronic device using infrared and/or Radio Frequency (RF) signals and/or bluetooth, and may also include functional modules such as WiFi, wireless USB, bluetooth, motion sensors, etc. For example: the hand-held touch remote controller replaces most of the physical built-in hardware in the common remote control device with the user interface in the touch screen.

The term "gesture" as used in the embodiments of the present application refers to a user behavior used to express an intended idea, action, purpose, or result through a change in hand shape or an action such as hand movement.

The term "hardware system" used in the embodiments of the present application may refer to a physical component having computing, controlling, storing, inputting and outputting functions, which is formed by a mechanical, optical, electrical and magnetic device such as an Integrated Circuit (IC), a Printed Circuit Board (PCB) and the like. In various embodiments of the present application, a hardware system may also be referred to as a motherboard (or chip).

Fig. 1 is a schematic diagram illustrating an operation scenario between a display device and a control device according to an embodiment. As shown in fig. 1, a user may operate the display device 200 through the control device 100.

The control device 100 may be a remote controller 100A, which can communicate with the display device 200 through an infrared protocol communication, a bluetooth protocol communication, a ZigBee (ZigBee) protocol communication, or other short-range communication, and is used to control the display device 200 through a wireless or other wired manner. The user can input a user instruction through a key on the remote controller 100A, voice input, control panel input, or the like to control the display apparatus 200. Such as: the user can input a corresponding control command through a volume up/down key, a channel control key, up/down/left/right movement keys, a voice input key, a menu key, a power on/off key, etc. on the remote controller 100A to control the functions of the display device 200.

The control device 100 may also be an intelligent device, such as a mobile terminal 100B, a tablet computer, a notebook computer, etc., which may communicate with the display device 200 through a Local Area Network (LAN), a Wide Area Network (WAN), a Wireless Local Area Network (WLAN), or other networks, and implement control of the display device 200 through an application program corresponding to the display device 200. For example, the display apparatus 200 is controlled using an application program running on a smart device. The application may provide various controls to the User through an intuitive User Interface (UI) on a screen associated with the smart device.

For example, the mobile terminal 100B and the display device 200 may each be installed with a software application, so that connection communication between the two can be realized through a network communication protocol, and the purpose of one-to-one control operation and data communication can be further realized. Such as: a control instruction protocol can be established between the mobile terminal 100B and the display device 200, a remote control keyboard is synchronized to the mobile terminal 100B, and the function of controlling the display device 200 is realized by controlling a user interface on the mobile terminal 100B; the audio/video content displayed on the mobile terminal 100B may also be transmitted to the display device 200, so as to implement a synchronous display function.

As shown in fig. 1, the display device 200 may also perform data communication with the server 300 through various communication methods. In various embodiments of the present application, the display device 200 may be allowed to be in wired or wireless communication connection with the server 300 through a local area network, a wireless local area network, or other network. The server 300 may provide various contents and interactions to the display apparatus 200.

Illustratively, the display device 200 receives software Program updates, or accesses a remotely stored digital media library by sending and receiving information, and Electronic Program Guide (EPG) interactions. The servers 300 may be a group or groups, and may be one or more types of servers. Other web service contents such as a video on demand and an advertisement service are provided through the server 300.

The display device 200 includes a display screen 201 and a host 202, wherein the display screen 201 is connected to the host 202 through a connection line 203. More specifically, the host 202 may be connected to a power source and transmit a power signal to the display screen 201 through the connection line 203, thereby supplying power to the display screen 201. Meanwhile, the host 202 may further obtain the content to be displayed from the server 300, and transmit the content to be displayed to the display screen 201 through the connection line 203 in an electrical signal manner, so that the display screen 201 displays the received content to be displayed.

The display device 200 may be, for example, a liquid crystal display, an OLED (Organic Light Emitting Diode) display, or a projection display device; on the other hand, the display device can be a display system consisting of an intelligent television or a display and a set-top box. The specific display device type, size, resolution, etc. are not limited, and those skilled in the art will appreciate that the display device 200 may be modified in performance and configuration as desired.

The display apparatus 200 may additionally provide an intelligent network tv function providing a computer support function in addition to the broadcast receiving tv function. Examples include a web tv, a smart tv, an Internet Protocol Tv (IPTV), and the like. In some embodiments, the display device may not have a broadcast receiving television function.

In other examples, more or less functionality may be added. The function of the display device is not particularly limited in the present application.

Fig. 2 is a block diagram schematically showing the configuration of the control apparatus 100 according to the exemplary embodiment. As shown in fig. 2, the control device 100 includes a controller 110, a communicator 130, a user input/output interface 140, a memory 190, and a power supply 180.

The control device 100 is configured to control the display device 200, and to receive an input operation instruction from a user, and to convert the operation instruction into an instruction recognizable and responsive by the display device 200, and to mediate interaction between the user and the display device 200. Such as: the user operates the channel up/down key of the control device 100, and the display device 200 responds to the channel up/down operation.

In some embodiments, the control device 100 may be a smart device. Such as: the control device 100 may install various applications for controlling the display device 200 according to user's demands.

In some embodiments, as shown in fig. 1, the mobile terminal 100B or other intelligent electronic device may function similar to the control device 100 after an application for manipulating the display device 200 is installed. Such as: the user may implement the functions of controlling the physical keys of the apparatus 100 by installing applications, various function keys or virtual buttons of a graphical user interface available on the mobile terminal 100B or other intelligent electronic devices.

The controller 110 includes a processor 112, a RAM 113 and a ROM 114, a communication interface, and a communication bus. The controller 110 is used to control the operation of the control device 100, as well as the internal components for communication and coordination and external and internal data processing functions.

The communicator 130 enables communication of control signals and data signals with the display device 200 under the control of the controller 110. Such as: the received user input signal is transmitted to the display device 200. The communicator 130 may include at least one of a WIFI module 131, a bluetooth module 132, an NFC module 133, and the like.

A user input/output interface 140, wherein the input interface includes at least one of a microphone 141, a touch pad 142, a sensor 143, a key 144, a camera 145, and the like. Such as: the user can realize a user instruction input function through actions such as voice, touch, gesture, pressing, and the like, and the input interface converts the received analog signal into a digital signal and converts the digital signal into a corresponding instruction signal, and sends the instruction signal to the display device 200.

The output interface includes an interface that transmits the received user instruction to the display apparatus 200. In some embodiments, it may be an infrared interface or a radio frequency interface. Such as: when the infrared signal interface is used, the user input command needs to be converted into an infrared control signal according to an infrared control protocol, and the infrared control signal is sent to the display device 200 through the infrared sending module. The following steps are repeated: when the rf signal interface is used, a user input command needs to be converted into a digital signal, and then the digital signal is modulated according to the rf control signal modulation protocol and then transmitted to the display device 200 through the rf transmitting terminal.

In some embodiments, the control device 100 includes at least one of a communicator 130 and an output interface. The communicator 130 is configured in the control device 100, such as: the modules of WIFI, bluetooth, NFC, etc. may send the user input command to the display device 200 through the WIFI protocol, or the bluetooth protocol, or the NFC protocol code.

The memory 190 stores various operation programs, data, and applications for driving and controlling the control apparatus 100 under the control of the controller 110. The memory 190 may store various control signal commands input by a user.

And a power supply 180 for providing operation power support for each electrical component of the control device 100 under the control of the controller 110. The power supply 180 may be powered by a battery and associated control circuitry.

In particular, the core idea of the display device with the rotatable display screen provided by the embodiment of the present application is that the display device is specially configured for some special scenes, such as taking a picture, shaking a sound, singing, and the like, and in the scene, the effect of the vertical screen is better than that of the horizontal screen. In addition, as a specific implementation, the rotary television is a split television design, and comprises a screen end and a box end, wherein the screen end is only a display screen and a TCON; the box end is provided with a power panel, a mainboard, a sound and the like. They are transmitted by optical fiber lines.

Fig. 3 is a diagram schematically illustrating a hardware configuration of a hardware system in the display apparatus 200 according to the exemplary embodiment. For convenience of explanation, the display device 200 in fig. 3 is illustrated by using a liquid crystal display screen as an example.

Fig. 3 is a schematic diagram illustrating a hardware configuration of a hardware system in the display apparatus 200 according to an exemplary embodiment. For convenience of explanation, the display device 200 in fig. 3 is illustrated by using a liquid crystal display screen as an example.

As shown in fig. 3, the display device 200 includes: panel 1, backlight assembly 2, mainboard 3, power board 4, backshell 5 and base 6. Wherein, the panel 1 is used for presenting pictures for users; the backlight assembly 2 is located below the panel 1, usually some optical assemblies, and is used for supplying sufficient light sources with uniform brightness and distribution, so that the panel 1 can normally display images, the backlight assembly 2 further includes a back plate 20, the main board 3 and the power board 4 are arranged on the back plate 20, usually some convex hull structures are formed by punching on the back plate 20, and the main board 3 and the power board 4 are fixed on the convex hulls through screws or hooks; the rear shell 5 is covered on the panel 1 to hide the parts of the display device such as the backlight assembly 2, the main board 3 and the power panel 4, and the like, thereby achieving the effect of beautiful appearance; and a base 6 for supporting the display device.

Further, the display apparatus is connected to a host (tv box) of the display apparatus 200 through an HI-LINK data line, and the host is also connected to a power adapter through an AC data line. Therefore, fig. 4 is a schematic diagram of an interface on a display device, and the display device may be provided with an HI-LINK interface for connecting an HI-LINK data line, and may also be provided with a TYPE-C interface.

Optionally, the display screen of the display device may also include a main board and a power board, where the main board is configured to generate the content to be displayed and send the content to the main board of the display screen through the HI-LINK data line, so that the display device displays the content to be displayed. The power panel in the host can be used for transmitting electric energy to the mainboard of the display screen so as to supply power to the display screen, and at the moment, the display screen does not comprise the power panel and only receives the electric energy provided by the power panel of the host.

Optionally, fig. 3 further includes a key sheet, and the key sheet may be disposed on the back plate of the display device, which is not limited in this application.

In addition, the display device 200 further includes a sound reproducing device (not shown), such as an audio component, e.g., an I2S interface including a power Amplifier (AMP) and a Speaker (Speaker), for reproducing sound. Usually, the sound components are capable of realizing sound output of at least two sound channels; when the panoramic surround effect is to be achieved, a plurality of acoustic components are required to be arranged to output sounds of a plurality of sound channels, and a detailed description thereof is omitted.

It should be noted that the display device of the display device 200 may also be an OLED display screen, so that the template included in the display device 200 is changed accordingly, which is not described herein too much.

Fig. 5 is a schematic diagram illustrating a connection relationship between a power board and a load, and fig. 5 illustrates a possible connection relationship between the power board and the load IN a display device, IN which the power board 4 of a host includes an input terminal IN and an output terminal OUT (a first output terminal OUT1, a second output terminal OUT2, a third output terminal OUT3, and a fourth output terminal OUT4 are illustrated), where the input terminal IN is connected to a commercial power, the output terminal OUT is connected to the load, for example, the first output terminal OUT1 is connected to a sound component, the second output terminal OUT2 is connected to a main board, and the third output terminal OUT3 is connected to a first display driving board. In addition, the fourth output terminal OUT4 is connected to the display screen, and the host of the display device transmits the power to the display screen through the HI-LINK connection line, for example, the power can be transmitted to a main board of the display screen to supply power to the display screen. The power board 4 needs to convert ac power into dc power required by the load and the display screen, and the dc power usually has different specifications, such as 18V for the audio components, 12V/18V for the main board 3, etc.

The system architecture of the display device of the present application is further described below with reference to fig. 6. It should be noted that fig. 6 is only an exemplary illustration and does not represent a limitation of the present application. In actual implementation, more or less hardware or interfaces may be included as desired.

Fig. 6 is a block diagram illustrating an exemplary hardware architecture of the display apparatus 200 according to fig. 2, 3 or 4. As shown in fig. 5, the hardware system of the display device 200 may include a controller, and modules connected to the controller through various interfaces.

Wherein the controller may be provided on the interactive board shown in fig. 2, or on the main board 3 shown in fig. 3. Alternatively, the controller may include a tuning demodulator 220, a communicator 230, an external device interface 250, a first controller 210, a memory 290, a user input interface 260-3, a video processor 260-1, an audio processor 260-2, a display screen 280 (the display screen 280 is connected through a HI-LINK connection line), an audio output interface 270, a power supply module 240, a detector 340, an external device interface 350, and a video processor 360. The controller may include more or fewer modules in other embodiments.

The tuning demodulator 220 is configured to perform modulation and demodulation processing such as amplification, frequency mixing, resonance and the like on a broadcast television signal received in a wired or wireless manner, so as to demodulate, from a plurality of wireless or wired broadcast television signals, an audio/video signal carried in a frequency of a television channel selected by a user, and additional information (e.g., an EPG data signal). Depending on the broadcast system of the television signal, the signal path of the tuner 220 may be various, such as: terrestrial broadcasting, cable broadcasting, satellite broadcasting, internet broadcasting, or the like; according to different modulation types, the adjustment mode of the signal can be a digital modulation mode or an analog modulation mode; and depending on the type of television signal being received, tuner demodulator 220 may demodulate analog and/or digital signals.

The tuner demodulator 220 is also operative to respond to the user-selected television channel frequency and the television signal carried thereby, in accordance with the user selection and as controlled by the first controller 210.

In other exemplary embodiments, the tuner/demodulator 220 may be in an external device, such as an external set-top box. In this way, the set-top box outputs television audio/video signals after modulation and demodulation, and the television audio/video signals are input into the display device 200 through the external device interface 250.

The communicator 230 is a component for communicating with an external device or an external server according to various communication protocol types. For example: the communicator 230 may include a WIFI module 231, a bluetooth communication protocol module 232, a wired ethernet communication protocol module 233, and other network communication protocol modules such as an infrared communication protocol module or a near field communication protocol module (not shown).

The display apparatus 200 may establish a connection of a control signal and a data signal with an external control device or a content providing device through the communicator 230. For example, the communicator may receive a control signal of the remote controller 100A according to the control of the first controller 210.

The external device interface 250 is a component for providing data transmission between the N-chip first controller 210 and the a-chip and other external devices. The external device interface 250 may be connected with an external apparatus such as a set-top box, a game device, a notebook computer, etc. in a wired/wireless manner, and may receive data such as a video signal (e.g., moving image), an audio signal (e.g., music), additional information (e.g., EPG), etc. of the external apparatus.

In some embodiments, the display device is further connected to one or more sensors through an external device interface. The one or more sensors include, but are not limited to: acceleration sensors, gyroscope sensors, pressure sensors, fingerprint sensors, optical sensors, and proximity sensors.

The acceleration sensor can detect the magnitude of acceleration on three coordinate axes of a coordinate system established with the bluetooth device. For example, an acceleration sensor may be used to detect the components of the gravitational acceleration in three coordinate axes. The processor can control the touch display screen to display the user interface in a transverse view or a longitudinal view according to the gravity acceleration signal acquired by the acceleration sensor. The acceleration sensor may also be used for game or user motion data acquisition.

The gyroscope sensor can detect the organism direction and the turned angle of the bluetooth device, and the gyroscope sensor can cooperate with the acceleration sensor to acquire the 3D action of the user on the bluetooth device. The processor can realize the following functions according to the data collected by the gyroscope sensor: motion sensing (such as changing the UI according to a user's tilting operation), image stabilization at the time of photographing, game control, and inertial navigation.

The pressure sensor can be arranged on the side frame of the Bluetooth device and/or on the lower layer of the touch display screen. When pressure sensor set up the side frame at bluetooth equipment, can detect the user to the signal of gripping of bluetooth equipment, grip the signal by the treater according to pressure sensor collection and carry out left right hand discernment or swift operation. When the pressure sensor is arranged at the lower layer of the touch display screen, the processor controls the operable control on the UI according to the pressure operation of the user on the touch display screen. The operability control comprises at least one of a button control, a scroll bar control, an icon control and a menu control.

The fingerprint sensor is used for collecting fingerprints of users, and the identity of the users is identified by the processor according to the fingerprints collected by the fingerprint sensor, or the identity of the users is identified by the fingerprint sensor according to the collected fingerprints. And when the identity of the user is identified as a credible identity, the processor authorizes the user to execute relevant sensitive operations, wherein the sensitive operations comprise screen unlocking, encrypted information viewing, software downloading, payment, setting change and the like. The fingerprint sensor may be provided on the front, back or side of the bluetooth device. When a physical button or a manufacturer Logo is provided on the bluetooth device, the fingerprint sensor may be integrated with the physical button or the manufacturer Logo.

The optical sensor is used for collecting the intensity of ambient light. In one embodiment, the processor may control the display brightness of the touch display screen based on the ambient light intensity collected by the optical sensor. Specifically, when the ambient light intensity is higher, the display brightness of the touch display screen is increased; and when the ambient light intensity is lower, the display brightness of the touch display screen is reduced. In another embodiment, the processor may also dynamically adjust the shooting parameters of camera head assembly 806 based on the ambient light intensity collected by the optical sensor.

Proximity sensors, also known as distance sensors, are typically provided on the front panel of the bluetooth device. The proximity sensor is used to collect the distance between the user and the front of the bluetooth device. In one embodiment, when the proximity sensor detects that the distance between the user and the front face of the Bluetooth device is gradually reduced, the processor controls the touch display screen to be switched from a bright screen state to a dark screen state; when the proximity sensor detects that the distance between the user and the front face of the Bluetooth device is gradually increased, the processor controls the touch display screen to be switched from the screen-off state to the screen-on state.

The external device interface 250 may include: HI-LINK interface and TYPE-C interface. A High Definition Multimedia Interface (HDMI) terminal also referred to as HDMI 251, a Composite Video Blanking Sync (CVBS) terminal also referred to as AV 252, an analog or digital component terminal also referred to as component 253, a Universal Serial Bus (USB) terminal 254, a Red Green Blue (RGB) terminal (not shown in the figure), and the like. The number and type of external device interfaces are not limited by this application.

The first controller 210 controls the operation of the display apparatus 200 and responds to the operation of the user by running various software control programs (e.g., an operating system and/or various application programs) stored on the memory 290.

As shown in fig. 6, the first controller 210 includes a read only memory R0M 213, a random access memory RAM 214, a graphics processor 216, a CPU processor 212, a communication interface 218, and a communication bus. The ROM 213 and the RAM 214, the graphic processor 216, the CPU processor 212, and the communication interface 218 are connected via a bus.

A ROM 213 for storing instructions for various system boots. If the display device 200 is powered on when a power-on signal is received, the CPU processor 212 executes a system boot instruction in the ROM and copies the operating system stored in the memory 290 to the RAM 214 to start running the boot operating system. After the start of the operating system is completed, the CPU processor 212 copies the various application programs in the memory 290 to the RAM 214, and then starts running and starting the various application programs.

A graphics processor 216 for generating various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The display device comprises an arithmetic unit which carries out operation by receiving various interactive instructions input by a user and displays various objects according to display attributes. And a renderer for generating various objects based on the arithmetic unit, and transmitting the rendering result to the display screen 280 through the HI-LINK data line to be displayed by the display screen 280.

A CPU processor 212 for executing operating system and application program instructions stored in memory 290. And executing various application programs, data and contents according to various interactive instructions received from the outside so as to finally display and play various audio and video contents.

In some exemplary embodiments, the CPU processor 212 may include a plurality of processors. The plurality of processors may include a main processor and a plurality of or a sub-processor. A main processor for performing some operations of the display apparatus 200 in a pre-power-up mode and/or operations for displaying a screen in a normal mode. A plurality of or one sub-processor for performing an operation in a standby mode or the like.

The communication interface 218 may include a first interface 218-1 through an nth interface 218-n. These interfaces may be network interfaces that are connected to external devices via a network.

The first controller 210 may control operations of the display apparatus 200 in relation to the display screen 280. For example: in response to receiving a user command for selecting a UI object to be displayed on the display screen 280, the first controller 210 may perform an operation related to the object selected by the user command.

Wherein the object may be any one of selectable objects, such as a hyperlink or an icon. Operations related to the selected object, such as: displaying an operation of connecting to a hyperlink page, document, image, etc., or performing an operation of a program corresponding to an icon. The user command for selecting the UI object may be a command input through various input devices (e.g., a mouse, a keyboard, a touch pad, etc.) connected to the display device 200 or a voice command corresponding to a voice spoken by the user.

The memory 290 includes various software modules for driving and controlling the display apparatus 200. Such as: various software modules stored in memory 290, including: a base module, a detection module, a communication module, a display control module, a browser module, and various service modules, etc. (not shown in the figure).

The basic module is a bottom layer software module for signal communication between hardware in the display device 200 and for sending processing and control signals to an upper layer module. The detection module is a management module used for collecting various information from various sensors or user input interfaces, and performing digital-to-analog conversion and analysis management. The voice recognition module comprises a voice analysis module and a voice instruction database module. The display control module is a module for controlling the display screen 280 to display image content, and may be used to play information such as multimedia image content and UI interface. The communication module is used for carrying out control and data communication with external equipment. And the browser module is used for executing data communication between the browsing servers. The service module is a module for providing various services and various application programs.

Meanwhile, the memory 290 is also used to store visual effect maps and the like for receiving external data and user data, images of respective items in various user interfaces, and a focus object.

A user input interface 260-3 for transmitting an input signal of a user to the first controller 210 or transmitting a signal output from the first controller 210 to the user. For example, the control device (e.g., a mobile terminal or a remote controller) may transmit an input signal input by a user, such as a power switch signal, a channel selection signal, a volume adjustment signal, etc., to the user input interface, and then the input signal is forwarded to the first controller 210 through the user input interface 260-3; alternatively, the control device may receive an output signal such as audio, video or data processed by the first controller 210 and output from the user input interface 260-3, and display or output the received output signal in audio or vibration form.

In some embodiments, the user may input a user command on a Graphical User Interface (GUI) displayed on the display screen 280, and the user input interface 260-3 receives the user input command through the Graphical User Interface (GUI). Alternatively, the user may input a user command by inputting a specific sound or gesture, and the user input interface 260-3 receives the user input command by recognizing the sound or gesture through the sensor.

The video processor 260-1 is configured to receive a video signal, and perform video data processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis according to a standard codec protocol of the input signal, so as to obtain a video signal that is directly displayed or played on the display screen 280.

Illustratively, the video processor 260-1 includes a demultiplexing module, a video decoding module, an image synthesizing module, a frame rate conversion module, a display formatting module, and the like (not shown in the figure).

The demultiplexing module is used for demultiplexing the input audio and video data stream, and if the input MPEG-2 is input, the demultiplexing module demultiplexes the input audio and video data stream into a video signal and an audio signal.

And the video decoding module is used for processing the video signal after demultiplexing, including decoding, scaling and the like.

And the image synthesis module, such as an image synthesizer, is used for performing superposition mixing processing on the GUI signal input by the user or generated by the user and the video picture after the zooming processing by the graphics generator so as to generate an image signal for display.

The frame rate conversion module is configured to convert a frame rate of an input video, such as a 24Hz, 25Hz, 30Hz, or 60Hz video, into a 60Hz, 120Hz, or 240Hz frame rate, where the input frame rate may be related to a source video stream, and the output frame rate may be related to a refresh rate of the display device. And a display formatting module for converting the signal output by the frame rate conversion module into a signal conforming to a display format of the display device, such as converting the format of the signal output by the frame rate conversion module to output RGB data signals.

A display screen 280 for receiving the image signal from the input of the video processor 260-1. It will be appreciated that in one particular implementation of FIG. 7, in addition to the display screen 280, it is provided within the host of the display device; alternatively, in other possible implementations, an audio playing device such as a speaker may be further disposed in the display screen 280, which is not limited in this application. The display screen 280 for displaying video content and images and menu manipulation interface includes a display screen component for presenting pictures and a driving component for driving the display of images. The video content may be displayed from the video in the broadcast signal received by the tuner/demodulator 220, or from the video content input from the communicator or the external device interface. The screen 280 is displayed while a user manipulation interface UI generated in the display apparatus 200 and used to control the display apparatus 200 is displayed.

And, a driving component for driving the display according to the type of the display screen 280. Alternatively, a projection device and projection screen may be included, provided that display screen 280 is a projection display screen.

The audio processor 260-2 is configured to receive an audio signal, and perform decompression and decoding according to a standard codec protocol of the input signal, and perform audio data processing such as noise reduction, digital-to-analog conversion, and amplification processing to obtain an audio signal that can be played in the speaker 272.

An audio output interface 270 for receiving the audio signal output by the audio processor 260-2 under the control of the first controller 210, wherein the audio output interface may include a speaker 272 or an external sound output terminal 274 for outputting to a generating device of an external device, such as: external sound terminal or earphone output terminal.

In other exemplary embodiments, video processor 260-1 may comprise one or more chip components. The audio processor 260-2 may also include one or more chips.

And, in some other exemplary embodiments, the video processor 260-1 and the audio processor 260-2 may be separate chips or may be integrated in one or more chips together with the first controller 210.

The power supply module 240 is configured to provide power supply support for the display apparatus 200 with power input from an external power source under the control of the first controller 210. The power supply module 240 may include a built-in power supply circuit installed inside the display apparatus 200, or may be a power supply installed outside the display apparatus 200, such as a power supply interface for providing an external power supply in the display apparatus 200.

The detector 340 is a component of the display device a chip for collecting signals of an external environment or interacting with the outside. The detector 340 may include a light receiver 342, a sensor for collecting the intensity of ambient light, which may be used to adapt to display parameter changes, etc.; the system may further include an image collector 341, such as a camera, a video camera, etc., which may be configured to collect external environment scenes, collect attributes of the user or interact gestures with the user, adaptively change display parameters, and identify user gestures, so as to implement a function of interaction with the user.

An external device interface 350, which provides a component for data transmission between the second controller and the N-chip or other external devices. The external device interface may be connected with an external apparatus such as a set-top box, a game device, a notebook computer, etc. in a wired/wireless manner.

A video processor 360 for processing the associated video signal.

It will be appreciated by those skilled in the art that the arrangements shown in the figures are not intended to be limiting of the display device and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components may be used.

Fig. 7 is a diagram schematically illustrating a functional configuration of a display device according to an exemplary embodiment. As shown in fig. 7, the memory 290 is specifically used for storing an operating program for driving the first controller 210 in the display apparatus 200, and storing various applications built in the display apparatus 200, various applications downloaded by a user from an external device, various graphical user interfaces related to the applications, various objects related to the graphical user interfaces, user data information, and internal data of various supported applications. The memory 290 is used to store system software such as an Operating System (OS) kernel, middleware, and applications, and to store input video data and audio data, and other user data.

The memory 290 is specifically used for storing drivers and related data of the video processor 260-1 and the audio processor 260-2, the display screen 280, the communicator 230, the tuning demodulator 220, the input/output interface, and the like.

In some embodiments, memory 290 may store software and/or programs, software programs for representing an Operating System (OS) including, for example: a kernel, middleware, an Application Programming Interface (API), and/or an application program. For example, the kernel may control or manage system resources, or functions performed by other programs (e.g., the middleware, APIs, or applications), and the kernel may provide interfaces to allow the middleware and APIs, or applications, to access the controller to implement controlling or managing system resources.

The memory 290, for example, includes a broadcast receiving module 2901, a channel control module 2902, a volume control module 2903, an image control module 2904, a display control module 2905, a first audio control module 2906, an external instruction recognition module 2907, a communication control module 2908, a light receiving module 2909, a power control module 2910, an operating system 2911, and other applications 2912, a browser module 2913, and so forth. The first controller 210 performs operations such as: the system comprises a broadcast television signal receiving and demodulating function, a television channel selection control function, a volume selection control function, an image control function, a display control function, an audio control function, an external instruction identification function, a communication control function, an optical signal receiving function, an electric power control function, a software control platform supporting various functions, a browser function and other various functions.

The memory 290 may further include a memory for storing various software modules for driving and controlling the display apparatus 200. Such as: various software modules stored in memory 290, including: a base module, a detection module, a communication module, a display control module, a browser module, and various service modules, etc. (not shown in the figure).

Illustratively, the memory 290 includes an image control module, a second audio control module, an external instruction recognition module 3907, a communication control module, a light receiving module, an operating system, and other application programs, a browser module, and the like. The first controller 210 performs operations such as: the system comprises an image control function, a display control function, an audio control function, an external instruction identification function, a communication control function, an optical signal receiving function, an electric power control function, a software control platform supporting various functions, a browser function and other various functions.

Illustratively, since the image receiving device such as a camera is connected with the controller, the external instruction recognition module 3907 of the controller may include a graphic database stored in the graphic recognition module 3907-1, and when the camera receives an external graphic instruction, the camera corresponds to the instruction in the graphic database to perform instruction control on the display device. Since the voice receiving device and the remote controller are connected to the controller, the external command recognition module 2907 of the controller may include a voice recognition module 2907-2, a voice database is stored in the voice recognition module 2907-2, and when the voice receiving device receives an external voice command or the like, the voice receiving device corresponds to the command in the voice database to perform command control on the display device. Similarly, a control device 100 such as a remote controller is connected to the controller, and the button command recognition module 2907-3 performs command interaction with the control device 100.

Fig. 1 to 7 show schematic structural diagrams of a display device provided in the present application, where the display device is merely an exemplary illustration, and the display device provided in the present application may be the display device described in fig. 1 to 7, or may be another display device, and is not limited.

The display device is usually provided with an interface, which may include, for example, a Type C USB interface (USB Type-C interface) or the like, and the display device may communicate with an external device using the interface. The external device may include a storage device, a control device, or an electromechanical device (which may also be referred to as a motor device, etc.), and the like.

For example, fig. 8 shows a schematic circuit diagram of an electromechanical device. The situation of positive and negative voltage reversal needs to occur in the process of driving the motor to rotate by the motor so as to complete the control of the motor reverse rotation, as shown in fig. 8, the voltage of VCCA is higher than that of VCCB, and conversely, the motor reverse rotation is completed.

Fig. 9 shows a schematic circuit diagram of a storage or control device. Taking the storage or control device as a usb disk as an example, the VCCA and VCCB pins of the usb disk cannot perform voltage inversion, otherwise the device may be damaged.

FIG. 10 shows a USB Type-C interface schematic. As shown in fig. 10, USB Type-C has a set (two nets) of terminals VBUS and GND that can transmit large current.

If the motor device is connected to the USB Type-C, the VCCA and the VCCB need to be connected to the VBUS and the GND respectively in the interface design of the motor device, and the voltages of the VCCA and the VCCB need to be inverted according to the control, which may conflict with the use of the control device or the storage device. Therefore, the general USB Type-C interface cannot support the common use of the motor device with the control device or the storage device.

Based on the motor driving circuit and the motor control circuit in the interface adaptation circuit, level control over a first power pin of the USB interface and a first ground pin of the USB interface can be achieved, and the USB interface can be universal to motors, storage devices and the like.

The technical solution of the present application will be described in detail below with specific examples. These several specific embodiments may be combined with each other below, and details of the same or similar concepts or processes may not be repeated in some embodiments.

Fig. 11 is a schematic structural diagram of an interface adaptation circuit provided in the present application, where the interface adaptation circuit shown in fig. 11 may be disposed in a display device as shown in any one of fig. 1 to 7, or may also be another display device not shown in fig. 1 to 7. Specifically, the interface adaptation circuit provided in this embodiment includes: a motor drive circuit 11 and a motor control circuit 12.

The motor drive circuit 12 includes a first terminal 1101, a second terminal 1102, a third terminal 1103, and a fourth terminal 1104; the first end 1101 and the second end 1102 are used for connecting the motor control circuit 11; the third terminal 1103 is used for connecting a first power pin of the USB interface 13, and the fourth terminal 1104 is used for connecting a first ground pin of the USB interface 13.

For example, the first power pin of the USB interface 13 may be a power pin of A4, A9, B9, or B4 in fig. 10. The first ground pin of the USB interface 13 may be a ground pin such as A1, a12, B12, or B1 in fig. 10.

The motor control circuit 12 is configured to send a control signal to the first terminal 1101 and the second terminal 1102 according to the type of the device connected to the USB interface 13.

In this embodiment, the motor control circuit may be a Frame Rate Conversion (FRC) Chip, a Micro Controller Unit (MCU), an integrated circuit Chip (System-on-a-Chip, SOC), or other motor control circuits. The types of devices connected to the USB interface 13 may be classified into an electric machine device, a storage device, a control device, or the like.

For example, the motor control circuit may communicate with a device connected to the USB interface 13 to determine the type of the device connected to the USB interface 13, or the motor control circuit may also determine the type of the device connected to the USB interface 13 by using an auxiliary circuit, which is not specifically limited in this embodiment of the present application.

The motor driving circuit 11 is configured to output a first level at a third terminal 1103 and a second level at a fourth terminal 1104 according to control signals received by the first terminal 1101 and the second terminal 1102 from the motor control circuit 12, and the first level and the second level are used for supplying power to an external device.

In the embodiment of the present application, the motor driving circuit 11 may be an H-bridge motor driving IC for driving a motor. VCC in the H-bridge motor driver IC may be 5v, and the H-bridge motor driver IC may output the first level and the second level in opposite phases at the third terminal 1103 and the fourth terminal 1104 according to different signal inputs of the first terminal 1101 and the second terminal 1102.

It can be understood that the H-bridge motor driving IC is a more classical motor driving circuit, and is not described in detail herein. It should be noted that, the application of the H-bridge motor drive IC to the USB interface in the embodiment of the present application is obtained through a lot of research and experiments, and the application is not a conventional application.

Therefore, in the case that the type of the device connected to the USB interface 13 is a motor device, the motor driving circuit 11 may output a motor driving signal at the third end 1103 and the fourth end 1104 according to the control signal received by the first end 1101 and the second end 1102 from the motor control circuit 12, where a first level of the third end 1103 and a second level of the fourth end 1104 are in opposite phase and may be reversed, so as to control the motor device to realize forward rotation and reverse rotation.

In some embodiments, the level of the motor drive signal is not fixed, which may be that the level signal may be inverted according to a user's steering control; the level is not fixed, but the level value may be changed with the change of the rotation rate, or the level is not fixed, or the level value is a fluctuation signal, such as a sine wave signal, a duty ratio signal, or the like, and the fine control of the driving may be performed by adjusting the waveform.

In the case where the device connected to the USB interface 13 is a memory device or a control device, the motor driving circuit 11 may output a fixed first level at the third terminal 1103 and a fixed second level at the fourth terminal 1104 according to the control signals received by the first terminal 1101 and the second terminal 1102 from the motor control circuit 12. For example, the first level may be a high level and the second level may be a low level.

In a possible implementation manner, when no external device is inserted into the USB interface 13, the levels at the third end 1103 and the fourth end 1104 may be low levels, or the levels output at the third end 1103 and the fourth end 1104 may be determined according to an actual application scenario, which is not specifically limited in this embodiment of the application.

To sum up, in the display device provided in the embodiment of the present application, an interface adaptation circuit is provided, and based on a motor driving circuit and a motor control circuit in the interface adaptation circuit, level control over a first power pin of a USB interface and a first ground pin of the USB interface can be realized, so that the USB interface can be general to a motor, a storage device, and the like, thereby reducing the number of customized interfaces, reducing cost, and facilitating user operation.

Further, based on the interface adaptation circuit shown in fig. 11, in a possible implementation manner, as shown in fig. 12, the motor control circuit 12 includes a fifth terminal MHPD (which may also be referred to as a hot plug detection interface of the motor), and the fifth terminal MHPD is used for connecting the second ground pin of the USB interface 13. The second ground pin of the USB interface 13 may be the ground pin of A1, etc. in 10. The MHPD defaults to a low level and goes to a high level when pulling up the external.

When the interface adapting circuit a in fig. 12 is applied to a display screen and the display screen is connected to an external device, the specific working process is as follows:

for example, fig. 13 is a schematic circuit structure diagram of a connection motor device.

As shown in fig. 13, in the interface adaptation circuit B, the motor is connected between a first power pin of the USB interface and a first ground pin of the USB interface, and one end of the resistor R1 is connected to a second ground pin of the USB interface; the other end of the resistor R1 is used for accessing a CC pin of the USB interface, and can also be understood as an interface adapter circuit arranged in the electrical equipment circuit, where the CC pin is connected with the MHPD pin through the resistor R1.

When the motor device is connected, the pull-up level of the CC pulls up the MHPD, and when the motor control circuit 12 detects that the MHPD is at a high level, the H bridge drive IC is controlled through IN1 and IN2, so that the purpose of controlling the rotation of the motor is achieved. In the pin definition design, one GND pin of the USB interface is connected with the MHPD network and used as a motor insertion detection pin. In a specific implementation, the GND may be implemented based on a shell (shell) of the USB interface, where table 1 is defined for the interface of this embodiment:

TABLE 1

For example, fig. 14 is a schematic circuit diagram of a connection between a storage device and a control device.

The MHPD network is connected to GND and keeps low level, the motor control circuit controls the H bridge drive IC to open two field effect transistors M1 and M4 and close two field effect transistors M2 and M3 through two control pins IN1 and IN2, and the state of outputting VCCA = VCC and VCCB = GND is kept. Therefore, normal power supply of the storage device or the control device can be guaranteed, the CC path follows the USB Type-C protocol and uses the Rd pull-down resistor to identify the USB flash disk insertion state. The USB +/-and screen end USB +/-connection ensures that the USB channel is smooth. In a specific implementation, the GND may be implemented based on a shell (shell) of the USB interface, where table 2 is defined for the interface of this embodiment:

TABLE 2

More specifically, fig. 15 is a schematic circuit structure diagram of an actual implementation of the embodiment of the present application.

Wherein, N2 is an H bridge driving chip. IN1 and IN2 are H-bridge driving signals and are used for connecting ICs such as MCU. The MOTOR P/N is a MOTOR output control signal, wherein the MOTOR N is an H-bridge output which is set to the ground when connected with a storage device or an empty box device. XP2 is the USB-C terminal, and the shell is connected with GND.

Based on the interface adaptation circuit shown in fig. 11, in a possible implementation manner, as shown in fig. 16, the interface adaptation circuit further includes a power distribution PD control chip 14; the PD control chip 14 is used to connect the motor control circuit and the CC pin of the USB interface (the CC pin may be CC1 and/or CC2 in fig. 16); the PD control chip 14 is specifically configured to communicate with a device connected in the USB interface, determine a type of the device connected in the USB interface, and output a first signal indicating the type of the device connected in the USB interface to the motor control circuit.

When the interface adapting circuit C in fig. 16 is applied to a display screen and the display screen is connected to an external device, the specific working process is as follows:

illustratively, fig. 17 is a schematic diagram of a circuit configuration of a connection motor device.

As shown in fig. 17, in the interface adaptation circuit D, the motor is connected between a first power pin of a USB interface and a first ground pin of the USB interface, and one end of the PD control chip is used to connect to a CC pin of the USB interface; the other end of the PD control chip is used for outputting a first signal for representing the type of equipment accessed in the USB interface to the motor control circuit; the PD control chip is specifically configured to communicate with a device accessed in the USB interface, and determine a type of the device accessed in the USB interface.

When the motor device is connected, the interface adaptation circuit D communicates with a display device (which may also be referred to as a screen end) through the CC, and after the communication is successful, the screen end CC2 provides a Vconn power supply to the outside to keep supplying power to a PD chip in the motor device. The PD chip of the interface adaptation circuit C controls the motor control circuit through MHPD, controls the H bridge drive IC through IN1 and IN2, enters the motor drive control process, and controls the rotation of the direct current motor by adjusting the voltage of VCCA and VCCB for example. Wherein, table 3 is the interface definition of this embodiment:

TABLE 3

For example, fig. 18 is a schematic circuit diagram of a connection between a storage device and a control device.

The PD control chip 14 determines that the insertion state of the storage device or the control device is the same as the non-insertion state of the CC by detecting a pull-down resistor of the CC on the storage device or the control device, and the motor control circuit controls the motor control circuit through the MHPD, for example, the motor control circuit controls the H-bridge driving IC to turn on two field effect transistors M1 and M4 and turn off two field effect transistors M2 and M3 through two control pins IN1 and IN2, and keeps the state of outputting VCCA = VCC and VCCB = GND externally, thereby ensuring that power is supplied to the storage device or the control device. Meanwhile, the USB +/-and the screen end USB +/-connection ensure that a USB channel is smooth. Wherein, table 4 is the interface definition of this embodiment:

TABLE 4

More specifically, fig. 19 is a schematic circuit structure diagram of an actual implementation of the embodiment of the present application. Wherein, N2 is an H bridge driving chip. IN1 and IN2 are H-bridge driving signals and are used for connecting ICs such as MCU. The MOTOR P/N is a MOTOR output control signal, wherein the MOTOR N is an H bridge output which is set to be the ground when being connected with the storage device or the empty box device. XP2 is the USB-C terminal, and the shell is connected GND.

Those of ordinary skill in the art will understand that: the foregoing is a preferred embodiment of the present application, which is not intended to be limiting in any way, and any simple modifications, equivalent variations and modifications made to the foregoing embodiment according to the technical spirit of the present application are within the scope of the present application.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An interface adaptation circuit, comprising: a motor drive circuit and a motor control circuit;

the motor control circuit is used for sending control signals to the first end and the second end according to the type of the equipment accessed in the USB interface;

the motor driving circuit is used for outputting a first level at the third end and outputting a second level at the fourth end according to control signals received by the first end and the second end from the motor driving circuit, the first level and the second level are used for supplying power to external equipment, and the motor driving circuit is an H-bridge motor driving circuit;

when the device connected to the USB interface is a motor device, the motor driving circuit is configured to output a motor driving signal at the third end and the fourth end according to a control signal received by the first end and the second end from the motor control circuit;

and under the condition that the device accessed in the USB interface is a storage device or a control device, the motor driving circuit is used for outputting a fixed first level at the third end and outputting a fixed second level at the fourth end according to the control signals received by the first end and the second end from the motor control circuit.

2. The interface adapter circuit of claim 1, wherein the motor control circuit comprises a fifth terminal for connecting to a second ground pin of the USB interface.

3. The interface adapter circuit of claim 1, further comprising a Power Distribution (PD) control chip; the PD control chip is used for connecting the motor control circuit and a CC pin of the USB interface;

4. Interface adaptation circuit according to any of claims 1-3, wherein the USB interface is a type C USB interface.

5. An interface adaptation circuit for use with an interface adaptation circuit according to any of claims 1-4, comprising: a motor and a resistor;

6. An interface adaptation circuit for use with an interface adaptation circuit according to any of claims 1-4, comprising: the motor and the power distribution PD control chip;

7. A display device comprising the interface adaptation circuit of any of claims 1-4, further comprising: the USB interface and the display screen.