CN220962414U

CN220962414U - Information reading circuit, chip and electronic equipment

Info

Publication number: CN220962414U
Application number: CN202322751603.2U
Authority: CN
Inventors: 魏栋
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Priority date: 2023-10-12
Filing date: 2023-10-12
Publication date: 2024-05-14
Anticipated expiration: 2033-10-12

Abstract

The application discloses an information reading circuit, a chip and an electronic device, wherein the information reading circuit comprises: the main control unit is connected with the main chip of the target device and the USB interface of the target device, and is used for receiving the device information from the main chip when the target device is electrified and responding to the information reading instruction from the USB interface when the target device is powered off, and outputting the device information to the USB interface; the power supply unit is connected to the power supply end of the target equipment, the USB interface and the main control unit and is used for outputting the first power supply voltage output by the power supply end or the second power supply voltage output by the USB interface to the main control unit so as to supply power for the main control unit. The information reading circuit can read the equipment information when the target equipment is not powered, so that the convenience of whole machine information viewing is greatly improved, and a user can efficiently and quickly read the equipment information.

Description

Information reading circuit, chip and electronic equipment

Technical Field

The present application relates to the field of electronic devices, and in particular, to an information reading circuit, a chip, and an electronic device.

Background

At present, when a user or a merchant wants to check the software and hardware information of the whole android device, the user or the merchant needs to turn on the power supply of the device and then enter into the 'setting' for checking after the device is started, and if the device is placed in a warehouse or a place inconvenient to electrify, the user or the merchant needs to transport the device to a place with the power supply to check the information of the whole android device.

In this way, viewing of information is greatly inconvenient.

Disclosure of utility model

In view of the above, the present application provides an information reading circuit, a chip and an electronic device, so as to solve the above technical problems.

In a first aspect, the present application provides an information reading circuit including:

The main control unit is connected with the main chip of the target device and the USB interface of the target device, and is used for receiving the device information from the main chip when the target device is electrified and responding to the information reading instruction from the USB interface when the target device is powered off, and outputting the device information to the USB interface;

The power supply unit is connected to the power supply end of the target equipment, the USB interface and the main control unit and is used for outputting the first power supply voltage output by the power supply end or the second power supply voltage output by the USB interface to the main control unit so as to supply power for the main control unit.

In one possible implementation of the present application, the information reading circuit further includes:

the channel selection unit is connected with the USB interface, the main chip and the main control unit and used for controlling the USB interface to communicate with one of the main chip and the main control unit according to the power supply state of the power supply end.

In a possible implementation of the application, the channel selection unit is configured to:

When the power supply end supplies power to the target equipment, the first communication link between the USB interface and the main chip is controlled to be electrically conducted, so that the USB interface and the main chip are communicated based on the first communication link;

When the power end is powered off, the second communication link between the USB interface and the main control unit is controlled to be electrically conducted, so that the USB interface and the main control unit are communicated through the second communication link.

when the level state of the first interface of the main chip is monitored to be high, determining that the power supply end supplies power for the target equipment;

and when the level state of the first interface is monitored to be low level, determining that the power supply end is powered off.

In one possible implementation of the application, the power supply unit is selected for:

When the power supply end supplies power for the target equipment, transmitting a first power supply voltage output by the power supply end to the main control unit so as to supply power for the main control unit;

When the power end is powered off, the second power supply voltage output by the USB interface is transmitted to the main control unit to supply power for the main control unit.

In one possible implementation manner of the present application, the selective power supply unit includes a first diode and a second diode, wherein the cathode of the first diode and the cathode of the second diode are respectively connected with the power input end of the main control unit, the anode of the first diode is connected with the power end, and the anode of the second diode is connected with the USB interface.

In one possible implementation of the present application, the main control unit is connected to the main chip through a serial communication bus, and the main control unit is further configured to update existing device information according to the received device information.

In one possible implementation of the present application, the USB interface is a USB OTG interface.

In a second aspect, the present application also provides a chip including the information reading circuit described above.

In a third aspect, the present application also provides an electronic device, which includes the above information reading circuit or chip.

From the above, the present application has the following advantages:

According to the information reading circuit provided by the application, the main control unit receives the equipment information from the main chip of the target equipment when the target equipment is electrified, and transmits the information reading instruction through the USB interface when the target equipment is powered off, the main control unit responds to the instruction, so that the equipment information can be output to the USB interface for checking, and the first power supply voltage output by the power supply end or the second power supply voltage output by the USB interface is output to the main control unit through the power supply unit, so that the power supply of the main control unit is ensured, and compared with the case that the equipment is required to be powered on for information checking in the related art, the convenience of checking the whole equipment information is greatly improved, and a user is ensured to be capable of efficiently and quickly reading the equipment information.

These and other aspects of the application will be more readily apparent from the following description of the embodiments.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a unit block of an information reading circuit provided in an embodiment of the present application;

FIG. 2 is a schematic diagram of another unit module of the information reading circuit provided in the embodiment of the present application;

Fig. 3 is a schematic diagram of a configuration of a selective power supply unit provided in an embodiment of the present application;

Fig. 4 is a schematic diagram of another configuration of the selective power supply unit provided in the embodiment of the present application.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present application and are not to be construed as limiting the present application.

In order to enable those skilled in the art to better understand the solution of the present application, the following description will make clear and complete descriptions of the technical solution of the present application in the embodiments of the present application with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the embodiments of the present application, it should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in an article or device comprising the element.

In describing embodiments of the present application, words such as "exemplary" or "such as" are used to mean illustrated, described, or described. Any embodiment or design described as "exemplary" or "such as" in an embodiment of the application is not necessarily to be construed as preferred or advantageous over another embodiment or design. The use of words such as "example" or "such as" is intended to present relative concepts in a clear manner.

It should be noted that in embodiments of the present application, "connected" may be understood as electrically connected, and two electrical components may be connected directly or indirectly between the two electrical components. For example, a may be directly connected to B, or indirectly connected to B via one or more other electrical components.

The embodiment of the application provides an information reading circuit, a chip and electronic equipment, and the information reading circuit, the chip and the electronic equipment are respectively described in detail below.

Referring to fig. 1, fig. 1 is a schematic diagram of a unit module of an information reading circuit provided in an embodiment of the present application, where the information reading circuit 100 may include a main control unit 110 and a selective power supply unit 120, where the main control unit 110 may be connected to a main chip 210 of a target device and a USB interface 220 of the target device, and is configured to receive device information from the main chip 210 when the target device is powered on, and output the device information to the USB interface 220 in response to an information reading instruction from the USB interface 220 when the target device is powered off;

The selective power supply unit 120 may be connected to the power supply terminal 230, the USB interface 220, and the master control unit 110 of the target device, and configured to output the first power supply voltage output by the power supply terminal 230 or the second power supply voltage output by the USB interface 220 to the master control unit 110 to supply power to the master control unit 110.

In the embodiment of the present application, the target device may be any electronic device based on an existing development System, for example, an android device, where the target device may be an electronic device such as a mobile phone, a computer, a smart watch, an electronic display screen, a television, etc., and the main Chip 210 of the target device may be a System on Chip (SoC).

The device information stored in the target device on the main chip 210 may include software related information of the target device, such as operating system, language compiler, application program, etc., and hardware related information of the target device, such as cpu, memory, input/output device, external memory, etc.

The target device is configured with a power supply terminal 230 for supplying power thereto, and under normal conditions, the power supply terminal 230 can supply power to the main chip 210, and the main chip 210 can autonomously transmit the device information stored by itself to the main control unit 110 in a power-on state.

It will be appreciated that, in some other examples, the master chip 210 may also transmit the device information to the master unit 110 in response to an acquisition instruction, where the acquisition instruction may be an instruction issued by the master unit, or may be an instruction issued by another electronic device capable of communicating with the target device, and specifically may be determined according to the actual situation, and is not limited herein.

In the embodiment of the present application, the main control unit 110 may be any existing controller such as a micro control unit (Microcontroller Unit, MCU) or a single chip microcomputer.

The main control unit 110 may store the device information of the target device after receiving it. It can be appreciated that the main control unit 110 may store the device information itself, or store the device information to a storage unit connected to the main control unit, which may specifically be selected according to an actual application scenario.

In the embodiment of the present application, the USB interface 220 may be connected to the external device 300, so as to implement interaction between the target device and the external device 300, and it can be understood that the external device 300 herein may be an electronic device such as a mobile phone, a computer, a smart watch, or a smart bracelet.

In the embodiment of the present application, the power supply unit 120 may select the first power supply voltage output by the power supply terminal 230 or the second power supply voltage output by the USB interface 220 to supply power to the main control unit 110 according to the power supply state of the power supply terminal 230 and the connection state of the USB interface 220.

For example, when the target device is powered on, the power supply terminal 230 may also output the first power supply voltage to the selective power supply unit 120 while supplying power to the main chip 210, and at this time, the selective power supply unit 120 may utilize the first power supply voltage to supply power to the main control unit 110, so as to ensure that the main control unit 110 can receive the device information from the main chip 210.

When the target device has no power, the power supply terminal 230 is disconnected and no voltage signal is output, and if the user wants to view the device information of the target device, the user can plug the external device 300 into the USB interface 220 by using the USB cable, at this time, the external device 300 can be used as a power supply terminal, so that the USB interface 220 outputs a second power supply voltage to the selective power supply unit 120, and the selective power supply unit 120 can use the second power supply voltage to supply power to the main control unit 110, so as to ensure that the main control unit 110 can respond to the information reading instruction sent by the external device 300 and feed back the stored device information about the target device to the external device 300 for viewing by the user.

It can be understood that, in the embodiment of the present application, the USB interface is used as a bridge between the main control unit 110 and the external device 300, and is used to transmit the information reading instruction sent by the external device 300 to the main control unit 110, and transmit the device information output by the main control unit 110 to the external device 300; and when the target device is not powered, the external device 300 is used as a power supply terminal to output the second power supply voltage to the selective power supply unit 120, so as to supply power to the main control unit 110.

According to the information reading circuit 100 provided by the application, the main control unit 110 receives the device information from the main chip 210 of the target device when the target device is electrified, and when the target device is powered off, the information reading instruction is transmitted through the USB interface 220, the main control unit 110 responds to the instruction, the device information can be output to the USB interface 220 for checking, and the first power supply voltage output by the power supply end 230 or the second power supply voltage output by the USB interface 220 is output to the main control unit 110 through the power supply unit 120, so that the power supply of the main control unit 110 is ensured, and compared with the information checking when the power supply of the device is required to be switched on in the related art, the convenience of checking the whole device information is greatly improved, and the user is ensured to be capable of efficiently and quickly reading the device information.

Next, detailed descriptions of the respective unit modules shown in fig. 1 and the specific embodiments that may be adopted in practical applications will be continued.

Referring to fig. 2, in some embodiments of the present application, the information reading circuit 100 may further include a channel selection unit 130, where the channel selection unit 130 may be connected to the USB interface 220, the main chip 210, and the main control unit 110, for controlling the USB interface 220 to communicate with one of the main chip 210 and the main control unit 110 according to a power supply state of the power supply terminal 230.

It will be appreciated that The android product will be configured with a computer interface for upgrades or compatible upgrades, such as a universal serial bus (Universal Serial Bus, USB) On-The-Go interface, i.e., a USB OTG interface, which is a complementary standard to The USB 2.0 specification. It can change USB device, such as player or mobile phone, from USB peripheral device to USB host, and connect and communicate with other USB devices. Of course, these OTG-enabled USB devices and USB hosts (e.g., desktop or handheld computers) may also be used as USB peripheral devices.

Therefore, the USB interface in the embodiment of the present application may be a USB OTG interface, based on which the external device 300 may be a slave device or a host device, and the channel selection unit 130 may perform selection of a communication channel when performing switching between the master and slave relationships.

In a specific implementation, the channel selection unit 130 may specifically be configured to: when the power supply terminal 230 supplies power to the target device, the first communication link between the USB interface 220 and the main chip 210 is controlled to be electrically conductive, so that the USB interface 220 and the main chip 210 communicate based on the first communication link; when the power supply terminal 230 is powered off, the second communication link between the USB interface 220 and the main control unit 110 is controlled to be electrically conductive, so that the USB interface 220 and the main control unit 110 communicate through the second communication link.

In the embodiment of the present application, when the power supply terminal 230 supplies power to the target device, that is, when the target device works normally, the external device 300 may interact with the target device as a slave device, at this time, the channel selection unit 130 may control the first communication link between the USB interface 220 and the main chip 210 to be electrically conductive, and the external device 300 may directly perform data transmission with the main chip 210 based on the first communication link to obtain related information, which can be understood that at this time, the main control unit 110 and the USB interface 220 are in an electrically disconnected state.

When the power supply terminal 230 is powered off, that is, the target device is not powered, the external device 300 cannot perform data transmission with the main chip 210, and the channel selection unit 130 can switch the electrical conduction of the first communication link to the electrical conduction of the second communication link between the USB interface 220 and the main control unit 110, and at this time, the first communication link between the main chip 210 and the USB interface 220 is electrically disconnected, so that the external device 300 can perform data transmission with the main control unit 110 as a host device based on the second communication link, and obtain related information.

In some embodiments of the present application, the channel selection unit 130 may determine the power supply state of the power supply terminal 230 according to the level state of the first interface of the main chip 210, and the channel selection unit 130 may specifically be configured to:

Upon monitoring that the level state of the first interface of the main chip 210 is a high level, determining that the power supply terminal 230 supplies power to the target device; upon detecting that the level state of the first interface is low, it is determined that the power supply terminal 230 is powered off.

The first interface of the main chip 210 may be any Input/Output (IO) interface of the main chip 210, where the channel selection unit 130 is connected to the first interface, and if the main chip 210 receives the power supply voltage from the power supply terminal 230, the first interface is in a high level state, so when it is monitored that the level state of the first interface is in a high level, it may be determined that the power supply terminal 230 supplies power to the target device at this time; if the power supply terminal 230 has no power supply voltage output, the main chip 210 is not powered, and the first interface is in a low level state at this time, so when the level state of the first interface is monitored to be a low level, it can be determined that the power supply terminal 230 has no power supply voltage output, i.e. is powered off.

In some embodiments of the present application, the selective power supply unit 120 may be specifically configured to: when the power supply terminal 230 supplies power to the target device, the first power supply voltage output by the power supply terminal 230 is transmitted to the main control unit 110 to supply power to the main control unit 110; when the power supply terminal 230 is powered off, the second power supply voltage output by the USB interface 220 is transmitted to the main control unit 110 to supply power to the main control unit 110.

In the embodiment of the present application, the power supply unit 120 may also select whether to supply power to the main control unit 110 from the power supply terminal 230 or the USB interface 220 according to the power supply state of the power supply terminal 230.

It can be understood that, in the case where the power supply terminal 230 supplies power to the target device, at this time, even if the USB interface is connected to the external device 300, the external device 300 as a slave device cannot supply power to the master control unit 110 through the USB interface 220, so as long as the power supply terminal 230 supplies power, the power supply unit 120 is selected to transmit the first power supply voltage output by the power supply terminal 230 to the master control unit 110; when the power supply terminal 230 does not output the power supply voltage, the external device 300 can be used as a host device to output the second power supply voltage to the selective power supply unit 120 through the USB interface 220, and at this time, the selective power supply unit 120 outputs the second power supply voltage to the main control unit 110 to supply power to the main control unit 110 due to the absence of the first power supply voltage.

As shown in fig. 3, in some embodiments of the present application, the selective power supply unit 120 may include a first diode D1 and a second diode D2, wherein the cathode of the first diode D1 and the cathode of the second diode D2 are respectively connected to the power input terminal of the main control unit 110, the anode of the first diode D1 is connected to the power terminal 230, and the anode of the second diode D2 is connected to the USB interface 220.

In the embodiment of the present application, the first diode D1 and the second diode D2 may form a power supply selector, and may form a competitive power supply mechanism to supply power to the main control unit 110 according to the different magnitudes of the input voltages of the anodes of the two diodes.

For example, in practical applications, the power supply terminal 230 is normally powered, the USB interface 220 is connected to the external device 300, and at this time, the amplitude of the output voltage of the power supply terminal 230 is usually in the range of 5.4V-5.5V, i.e. the power supply terminal 230 outputs the first power supply voltage of 5.4V-5.5V to the anode of the first diode D1; the output voltage of the standard USB interface is typically in the range of 4.75V-5.25V, so the USB interface 220 outputs a second supply voltage of 4.75V-5.25V to the anode of the second diode D2, and the anode voltage of the first diode D1 is higher than the anode voltage of the second diode D2, so the power input terminal of the main control unit 110 receives the first supply voltage from the first diode D1 without considering the voltage drop of the diodes.

In the case that the power supply terminal 230 is not powered, the first diode D1 is not turned on, and the power input terminal of the main control unit 110 receives the second power supply voltage from the second diode D2.

As shown in fig. 4, in some other examples, the option power supply unit 120 may also include a comparison output device 121, a first input terminal of the comparison output device 121 may be connected to the power supply terminal 230, a second input terminal of the comparison output device 121 may be connected to the USB interface 220, and an output terminal of the comparison output device 121 may be connected to the power supply input terminal of the main control unit 110.

The comparison output device 121 may be used to compare voltages at its first and second inputs, and to select a larger voltage to output to the main control unit 110. In practical applications, the output voltage of the power supply terminal is generally higher than the output voltage of the standard USB interface, so that when the power supply terminal 230 is powered normally and the USB interface 220 is connected to the external device 300, the comparison output device 121 will also output the first power supply voltage of the power supply terminal 230 to power the main control unit 110; when the power supply terminal 230 does not output the first power supply voltage, if the external device 300 is still connected to the USB interface 220, the comparison output device 121 outputs the second power supply voltage of the USB interface 220 to supply power to the main control unit 110.

It will be appreciated that in order to ensure that the master unit 110 can operate stably, stable power supply to the master unit 110 is required, and thus, in some embodiments, the selective power supply unit 120 may further perform voltage stabilizing processing on the voltage output to the master unit 110, so that the voltage supplied to the master unit 110 is maintained at an optimal operating voltage, such as 5V, 3.3V, 3.7V, etc., it will be appreciated that the optimal operating voltage may be determined according to the type of the master unit 110, and is not limited herein.

In some embodiments of the present application, the master control unit 110 may be connected to the master chip 210 through a serial communication bus, and the master control unit 110 may be further configured to update existing device information according to received device information.

In an embodiment of the present application, the serial communication bus includes, but is not limited to, an integrated circuit bus (Inter-INTEGRATED CIRCUIT, IIC).

Each time the target device is started, the main chip 210 sends the device information to the main control unit 110 for saving, if the device information such as the application program has code update, the main control unit 110 can erase the application program code saved by the last startup and save the new application program code, thereby realizing the update of the device information and ensuring that the device information stored by the main control unit 110 is the latest device information.

The information reading circuit of the embodiment of the application can easily read the latest equipment information of the target equipment through one USB line even if the target equipment is not powered by the information reading circuit, and the latest equipment information of the target equipment can be easily read through one USB line, and the MCU working current is only required to be 0.4A, so that the cost is low, the information checking performance of the equipment can be greatly improved under the condition of almost not increasing the cost, and the competitiveness of products is greatly improved.

Embodiments of the present application also provide a Chip, which may include the information reading circuit 100 in any of the embodiments shown in fig. 1 to 4, and may be an integrated circuit (INTEGRATED CIRCUIT, IC), or a micro circuit (microcircuit), a microchip (microchip), a wafer/Chip (Chip), and may be, but is not limited to, a System on Chip (SoC), or a System on package (SYSTEM IN PACKAGE, SIP) Chip.

The chip is provided with the information reading circuit 100 of the above embodiment, so that the information reading circuit 100 of any one of the above embodiments has all the advantages, and will not be described herein.

On the basis of the above embodiments, the present application further provides an electronic device, which may include a device main body and the information reading circuit or chip as described above disposed in the device main body. The electronic device may be, but is not limited to, a body weight scale, a body fat scale, a nutritional scale, an infrared electronic thermometer, a pulse oximeter, a body composition analyzer, a mobile power supply, a wireless charger, a quick charger, a vehicle-mounted charger, an adapter, a display, a universal serial bus (Universal Serial Bus, USB) docking station, a stylus, a true wireless smart (True Wireless Stereo, TWS) headset, an automobile central control unit, an intelligent wearable device, a mobile terminal, and an intelligent home device.

Wherein, intelligent wearing equipment includes but is not limited to intelligent wrist-watch, intelligent bracelet, cervical vertebra massage appearance. Mobile terminals include, but are not limited to, smartphones, notebook computers, tablet computers, point of sale terminals (POS) SALES TERMINAL. The intelligent household equipment comprises, but is not limited to, an intelligent socket, an intelligent electric cooker, an intelligent sweeper and an intelligent lamp.

The electronic device is provided with the information reading circuit 100 of the above embodiment, so that the electronic device has all the advantages of the information reading circuit 100 of any one of the above embodiments, and will not be described herein.

Although the present application has been described in terms of the preferred embodiments, it should be understood that the present application is not limited to the specific embodiments, but is capable of numerous modifications and equivalents, and alternative embodiments and modifications of the embodiments described above, without departing from the spirit and scope of the present application.

Claims

1. An information reading circuit, characterized by comprising:

The main control unit is connected with a main chip of target equipment and a USB interface of the target equipment, and is used for receiving equipment information from the main chip when the target equipment is electrified and responding to an information reading instruction from the USB interface when the target equipment is powered off, and outputting the equipment information to the USB interface;

The power supply unit is connected to the power supply end of the target device, the USB interface and the main control unit and is used for outputting the first power supply voltage output by the power supply end or the second power supply voltage output by the USB interface to the main control unit so as to supply power for the main control unit.

2. The information reading circuit according to claim 1, characterized by further comprising:

And the channel selection unit is connected with the USB interface, the main chip and the main control unit and is used for controlling the USB interface to communicate with one of the main chip and the main control unit according to the power supply state of the power supply end.

3. The information reading circuit according to claim 2, wherein the channel selecting unit is configured to:

When the power supply end supplies power to the target equipment, a first communication link between the USB interface and the main chip is controlled to be electrically conducted, so that the USB interface and the main chip communicate based on the first communication link;

and when the power end is powered off, controlling the second communication link between the USB interface and the main control unit to be electrically conducted so that the USB interface and the main control unit communicate through the second communication link.

4. The information reading circuit according to claim 2, wherein the channel selecting unit is configured to:

When the level state of the first interface of the main chip is monitored to be high level, determining that the power supply end supplies power for the target equipment;

5. The information reading circuit according to claim 1, wherein the selection power supply unit is configured to:

and when the power end is powered off, transmitting the second power supply voltage output by the USB interface to the main control unit so as to supply power for the main control unit.

6. The information reading circuit according to claim 5, wherein the selection power supply unit includes a first diode and a second diode, a cathode of the first diode and a cathode of the second diode are respectively connected with a power input terminal of the main control unit, an anode of the first diode is connected with the power terminal, and an anode of the second diode is connected with the USB interface.

7. The information reading circuit of claim 1, wherein the main control unit is connected to the main chip through a serial communication bus, and the main control unit is further configured to update existing device information according to the received device information.

8. The information reading circuit of any of claims 1-7, wherein the USB interface is a USB OTG interface.

9. A chip comprising an information reading circuit according to any one of claims 1-8.

10. An electronic device comprising a device body and the information reading circuit according to any one of claims 1 to 8 or the chip according to claim 9 provided to the device body.