CN205540713U - Portable device - Google Patents
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- CN205540713U CN205540713U CN201521139101.3U CN201521139101U CN205540713U CN 205540713 U CN205540713 U CN 205540713U CN 201521139101 U CN201521139101 U CN 201521139101U CN 205540713 U CN205540713 U CN 205540713U
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Abstract
The utility model discloses a portable device, this portable device includes: little the control unit, universal serial bus USB type -C interface, a plurality of analog switch, every analog switch sets up between the corresponding pin of little the control unit's high definition multi -media interface HDMI signal output pin and USB type -C interface, little the control unit detects USB type -C interface by the male just, in the other direction to according to the difference of inserting the direction, the control signal that output corresponds gives analog switch, analog switch is used for the direction according to control signal change over switch for the HDMI signal is exported via the corresponding pin of USB type -C interface. The utility model discloses only need establish a USB type -C interface, realize the beneficial effect through this USB type -C interface transfer HDMI signal and usb signal, the operation of positive reverse plug convenience of customers is realized in the whole space of saving equipment.
Description
Technical field
This utility model relates to technical field of mobile terminals, is specifically related to a kind of portable set.
Background technology
Existing support HDMI (High Definition Multimedia Interface, and USB (universal serial bus) (Universal Serial Bus HDMI), USB) being both provided with two interfaces on the portable set of data-transformation facility: HDMI and USB interface, two kinds of signals export through respective transmission channel.I.e. HDMI signal exports through the HDMI (such as HDMI Type A interface) of standard, and usb signal then exports (such as USB Type C interface) by USB interface.
Fig. 1 is the signal pin definition schematic diagram of HDMI Type A interface, see Fig. 1, pin and the actually used situation of the HDMI Type A interface of standard are as follows: Pin14 is that reservation foot is unused, pin17 is to be directly grounded, so actually useful signal be three groups of differential datas (TMDSData2+/-, TMDSData1+/-, TMDSData0+/-), one group of clock (TMDS Clock+/-), two IIC signals (SCL, SDA), insert detection (HPD) and consumer electronics controls CEC signal, power supply and ground and amounts to 16 with line.Minimizing differential signal transmission i.e. (Transition Minimized Differential signal, TMDS) is the signal transmission link in HDMI.
Fig. 2 is the signal pin definition schematic diagram of USB Type C interface, as shown in Figure 2, the signal pin service condition of Type C interface is as follows: have been defined for four groups of high speed signals on USB Type C adapter, and respectively TX1+/-, RX1+/-, TX2+/-, RX2+/-, and four low speed signal CC1, CC2, SBU1, SBU2.Wherein, CC1 and CC2 is two key pins, and a lot of such as detection of effect connects and distinguish positive and negative, auxiliary signal SBU1 and SBU2 (Side Band Use), just uses when more specific transmission modes.
It follows that in prior art, if user to use HDMI function and the USB function of portable set simultaneously, then need to insert respectively the data connecting line of correspondence, the most at least need to perform twice interface update, bring inconvenience to user, Consumer's Experience is the best.
Utility model content
This utility model provides a kind of portable set, is respectively provided with HDMI and USB interface solving existing portable set, at least needs to perform twice interface update, the problem of poor user experience during use.
According to an aspect of the present utility model, it is provided that a kind of portable set, this portable set includes:
Micro-control unit, general-purpose serial bus USB Type-C interface, and multiple analog switch；
Each analog switch is arranged between HDMI HDMI signal output pin and the respective pin of USB Type-C interface of micro-control unit；
Micro-control unit, for detecting the positive and negative direction that USB Type-C interface is inserted into, and according to the difference of direction of insertion, the control signal of output correspondence is to analog switch；
Analog switch, for according to control signal switching switch direction so that HDMI signal exports via the corresponding pin of USB Type-C interface.
The beneficial effects of the utility model are: this utility model is by arranging analog switch between the respective pin of HDMI signal output pin and USB Type-C interface, the positive and negative direction that detection USB Type-C interface is inserted into, difference according to direction of insertion, the direction of switching analoging switch so that HDMI signal exports via the corresponding pin of USB Type-C interface.Thus have the advantage that 1) make use of the part pin of the USB Type-C interface being arranged in portable set to transmit HDMI signal, it is achieved that can correctly export HDMI signal during positive anti-plug.2) in the pin of USB Type-C interface, leave the signal transmission passage of USB, be used for transmitting usb data, realize not only supporting HDMI signal but also supporting USB data transmission, so user has only to perform an interface update, has saved user time, has been convenient for users to operate.3) have only to arrange a USB Type-C interface at portable set, USB data transmission can be realized, quick charge and HDMI audio, video data three kinds of functions of transmission, compared with the equipment that existing existing HDMI has again USB interface, device structure size is compacter, saving equipment overall space, improves the competitiveness of portable set.
Accompanying drawing explanation
Fig. 1 is HDMI Type A interface signal pin definitions schematic diagram；
Fig. 2 is the signal pin definition schematic diagram of USB Type C interface；
Fig. 3 is the block diagram of a kind of portable set of one embodiment of this utility model；
Fig. 4 be one embodiment of this utility model forward intercalation model under the switch direction schematic diagram of analog switch in circuit；
Fig. 5 be one embodiment of this utility model reverse intercalation model under the switch direction schematic diagram of analog switch in circuit；
Fig. 6 is the application scenarios schematic diagram of the portable set of one embodiment of this utility model；
Fig. 7 is the flow chart of the control HDMI signal output method of one embodiment of this utility model.
Detailed description of the invention
Core concept of the present utility model is: structure based on existing USB Type C interface, from its pin, selected part signal pin realizes the function of HDMI audio-video signal transmission, so that portable set can only retain a USB Type C interface, realize transmission HDMI signal and usb signal function simultaneously, save the overall space of equipment, it is convenient for users to operate, achieves many things at one stroke.
Embodiment one
Fig. 3 is the block diagram of a kind of portable set of one embodiment of this utility model, sees Fig. 3, and this portable set 30 includes: micro-control unit 301, general-purpose serial bus USB Type-C interface 302, and multiple analog switch 303；
Each analog switch 303 is arranged between HDMI HDMI signal output pin and the respective pin of USB Type-C interface 302 of micro-control unit 301；
Micro-control unit 301, for detecting the positive and negative direction that USB Type-C interface 302 is inserted into, and according to the difference of direction of insertion, the control signal of output correspondence is to analog switch 303；
Analog switch 303, for according to control signal switching switch direction so that HDMI signal exports via the corresponding pin of USB Type-C interface 302.
From the figure 3, it may be seen that the portable set of the present embodiment is only provided with an interface, i.e. USB Type-C interface.Utilize USB Type C interface to transmit HDMI signal, compared with the portable set of prior art, user-friendly.USB employer's organization has issued USB3.1 standard (seeing Fig. 2) in the early time, is defined the standard specifications of USB Type C adapter.USB Type C is the input/output interface that one can carry out data transmission that (supporting USB3.0 standard) is connected with external equipment, powers for equipment, and supports positive anti-plug.
Embodiment two
Seeing following Tables 1 and 2, the USB Type-C interface forward in the present embodiment combined type portable equipment inserts the HDMI holding wire corresponding with the pin under reverse intercalation model and is specifically described.
| A1 GND | B12 GND |
| A2 Data2+ | B11 Clock+ |
| A3 Data2- | B10 Clock- |
| A4 VBUS | B9 VBUS |
| A5 CEC | B8 SDA |
| A6 D+ | B7 D- |
| A7 D- | B6 D+ |
| A8 SCL | B5 HPD |
| A9 VBUS | B4 VBUS |
| A10 Data0- | B3 Data1- |
| A11 Data0+ | B2 Data1+ |
| A12 GND | B1 GND |
Table 1
nullTable 1 be one embodiment of this utility model forward intercalation model under pin definitions signal in USB Type-C interface，As shown in table 1，Under USB Type C interface forward intercalation model，The up pin of USB Type C interface: A1 pin ground connection (GND)，A2 pin connects the Data2+ holding wire of HDMI，A3 pin connects the Data2-holding wire of HDMI，A4 pin meets power supply VBUS，A5 pin connects the CEC holding wire in HDMI signal，A6 pin connects the D+ holding wire in usb signal，A7 pin connects the D-holding wire in usb signal，A8 pin connects the SCL signal line in HDMI signal，A9 pin meets power supply VBUS，A10 pin connects the Data0-holding wire in HDMI signal，A11 pin connects the Data0+ holding wire in HDMI signal，A12 pin ground connection (GND)；The descending pin of USB Type C interface: B12 pin ground connection (GND), B11 pin connects the Clock+ holding wire in HDMI signal, B10 pin connects the Clock-holding wire in HDMI signal, B9 pin meets power supply VBUS, B8 pin connects the SDA signal line in HDMI signal, B7 pin connects the D-holding wire in usb signal, B6 pin connects the D+ holding wire in usb signal, B5 pin connects the HPD signal line in HDMI signal, B4 pin meets power supply VBUS, B3 pin connects the Data1-holding wire in HDMI signal, B2 pin connects the Data1+ holding wire in HDMI signal, B1 pin ground connection (GND).
See table 1, in pin definitions as above, three groups of high-speed datas and one group of high-speed clock signal, all by power supply and protect, serve the effect of shielding.
| B1 GND | A12 GND |
| B2 Data2+ | A11 Clock+ |
| B3 Data2- | A10 Clock- |
| B4 VBUS | A9 VBUS |
| B5 CEC | A8 SDA |
| B6 D+ | A7 D- |
| B7 D- | A6 D+ |
| B8 SCL | A5 HPD |
| B9 VBUS | A4 VBUS |
| B10 Data0- | A3 Data1- |
| B11 Data0+ | A2 Data1+ |
| B12 GND | A1 GND |
Table 2
nullTable 2 be one embodiment of this utility model reverse intercalation model under pin definitions signal in USB Type-C interface，Under the USB reverse intercalation model of Type C interface of portable set，The up pin of USB Type C interface: B1 pin ground connection (GND)，B2 pin connects the Data2+ holding wire in HDMI signal，B3 pin connects the Data2-holding wire in HDMI signal，B4 pin meets power supply VBUS，B5 pin connects the CEC holding wire in HDMI signal，B6 pin connects the D+ holding wire in usb signal，B7 pin connects the D-holding wire in usb signal，B8 pin connects the SCL signal line in HDMI signal，B9 pin meets power supply VBUS，B10 pin connects the Data0-holding wire in HDMI signal，B11 pin connects the Data0+ holding wire in HDMI signal，B12 pin ground connection (GND)；The descending pin of USB Type C interface: A12 pin ground connection (GND), A11 pin connects the Clock+ holding wire in HDMI signal, A10 pin connects the Clock-holding wire in HDMI signal, A9 pin meets power supply VBUS, A8 pin connects the SDA signal line in HDMI signal, A7 pin connects the D-holding wire in usb signal, A6 pin connects the D+ holding wire in usb signal, A5 pin connects the HPD signal line in HDMI signal, A4 pin meets power supply VBUS, A3 pin connects the Data1-holding wire in HDMI signal, A2 pin connects the Data1+ holding wire in HDMI signal, A1 pin ground connection (GND).
See table 2, in above definitions, three groups of high-speed datas and one group of high-speed clock signal, all by power supply and protect, serve the effect of shielding equally.
It is emphasized that the Tables 1 and 2 schematic definition simply to USB Type C pin, be not unique situation, in other embodiments of the present utility model, it is also possible to using table 1 as the USB Type C pin definitions under reverse intercalation model.This is not limiting as.
It addition, micro-control unit CPU in portable set specifically for, when detecting that USB Type-C interface is inserted by forward, send the first control signal (such as low level signal) making analog switch be in the first gating end channel status to analog switch；When detecting that USB Type-C interface is reversed insertion, send the second control signal (such as low level signal) making analog switch be in the second gating end channel status to analog switch；In portable set analog switch specifically for, receive the first control signal or the second control signal, and control the first gating end Guan Bi according to the first control signal, analog switch is made to be in the first gating end channel status, or control the second gating end Guan Bi according to the second control signal, make analog switch be in the second gating end channel status.So, it is achieved that direction of insertion detection and switch direction switching control.
Fig. 4 be one embodiment of this utility model forward intercalation model under the switch direction schematic diagram of analog switch in circuit, see Fig. 4, left side string pin shown in 41 is connected respectively to the HDMI signal output pin of micro-control unit, the right string pin shown in 42 is connected respectively to the respective pin of USB Type C interface, many group analog switches 43,44 it are provided with between the respective pin of HDMI signal output pin and USB Type C interface, wherein, analog switch 43 is speed-sensitive switch, and analog switch 44 is low speed switch.
Data2+/-the pin of the HDMI signal output pin that the common port of the one of which analog switch 43 shown in Fig. 4 is connected in micro-control unit (A2 in i.e. 41 string represented A3), first gating end of this group analog switch 43 is each attached to A2 pin and the A3 pin of USB Type-C interface, when the USB Type C interface of described portable set is in forward intercalation model, this group analog switch 43 is in the first gating end channel status.
The common port of one of which analog switch 43 be connected to the HDMI signal output pin of micro-control unit Data0-/+pin (i.e. 41 represent string in A10 A11), first gating end of this group analog switch 43 is each attached to A10, A11 pin of USB Type-C interface, when the USB Type C interface of described portable set is in forward intercalation model, this group analog switch 43 is in the first gating end channel status.
The common port of one of which analog switch 43 be connected to HDMI signal output pin Clock-/+pin (i.e. 41 represent string in B10 B11), first gating end of this group analog switch 43 is each attached to the B10 pin of USB Type-C interface, B11 pin, when the USB Type C interface of described portable set is in forward intercalation model, this group analog switch 43 is in the first gating end channel status；
The common port of one of which analog switch 43 be connected to HDMI signal output pin Data1+/-pin (i.e. 41 represent string in B2 B3), first gating end of this group analog switch 43 is each attached to the B2 pin of USB Type-C interface, B3 pin, when the USB Type C interface of described portable set is in forward intercalation model, this group analog switch 43 is in the first gating end channel status；
The common port of one of them analog switch 44 is connected to the CEC pin (A5 in i.e. 41 string represented) of HDMI signal output pin, and the first gating end of this analog switch 44 is connected to the A5 pin of USBType-C interface；The common port of one of them analog switch 44 is connected to the SCL pin (A8 in i.e. 41 string represented) of HDMI signal output pin, and the first gating end of this analog switch 44 is connected to the A8 pin of USB Type-C interface；The common port of one analog switch 44 is connected to the SDA pin (B8 in i.e. 41 string represented) of HDMI signal output pin, and the first gating end of this analog switch 44 is connected to the B8 pin of USB Type-C interface；The common port of one analog switch 44 is connected to the HPD pin of HDMI signal output pin, and the first gating end of this analog switch 44 is connected to the B5 pin of USB Type-C interface.
When the USB Type C interface of described portable set is in forward intercalation model, above-mentioned each analog switch 44 is in the first gating end channel status.
Fig. 5 be one embodiment of this utility model reverse intercalation model under the switch direction schematic diagram of analog switch in circuit, see Fig. 5, left side string pin shown in 51 is connected respectively to the HDMI signal output pin of micro-control unit, the right string pin shown in 52 is connected respectively to the respective pin of USB Type C interface, many group analog switches 53,54 it are provided with between the respective pin of HDMI signal output pin and USB Type C interface, wherein, analog switch 53 is speed-sensitive switch, and analog switch 54 is low speed switch.
Data2+/-the pin of the HDMI signal output pin that the common port of the one of which analog switch 53 shown in Fig. 5 is connected in micro-control unit (A2 in i.e. 51 string represented A3), second gating end of this group analog switch is each attached to B2 pin and the B3 pin of USB Type-C interface, when the USB Type C interface of described portable set is in reverse intercalation model, this group analog switch 53 is in the second gating end channel status.
The common port of one of which analog switch 53 be connected to the HDMI signal output pin of micro-control unit Data0-/+pin (i.e. 51 represent string in A10 A11), second gating end of this group analog switch 53 is each attached to B10, B11 pin of USB Type-C interface, when the USB Type C interface of described portable set is in reverse intercalation model, this group analog switch 53 is in the second gating end channel status.
The common port of one of which analog switch 53 be connected to HDMI signal output pin Clock-/+pin (i.e. 51 represent string in B10 B11), second gating end of this group analog switch 53 is each attached to the A10 pin of USB Type-C interface, A11 pin, when the USB Type C interface of described portable set is in reverse intercalation model, this group analog switch 53 is in the second gating end channel status；
The common port of one of which analog switch 53 be connected to HDMI signal output pin Data1+/-pin (i.e. 51 represent string in B2 B3), second gating end of this group analog switch 53 is each attached to the A2 pin of USB Type-C interface, A3 pin, when the USB Type C interface of described portable set is in reverse intercalation model, this group analog switch 53 is in the second gating end channel status；
The common port of one of them analog switch 54 is connected to the HPD pin (A5 in i.e. 51 string represented) of HDMI signal output pin, and the second gating end of this analog switch 54 is connected to the B5 pin of USB Type-C interface；The common port of one of them analog switch 54 is connected to the SDA pin (A8 in i.e. 51 string represented) of HDMI signal output pin, and the second gating end of this analog switch 54 is connected to the B8 pin of USB Type-C interface；The common port of one analog switch 44 is connected to the SCL pin (B8 in i.e. 51 string represented) of HDMI signal output pin, and the one or two gating end of this analog switch 44 is connected to the A8 pin of USB Type-C interface；The common port of one analog switch 54 is connected to the CEC pin (B5 in i.e. 51 string represented) of HDMI signal output pin, and the second gating end of this analog switch 54 is connected to the A5 pin of USB Type-C interface.
When the USB Type C interface of described portable set is in reverse intercalation model, above-mentioned each analog switch 54 is in the second gating end channel status.
It is emphasized that the analog switch in the present embodiment can use single-pole double-throw switch (SPDT), multiple single-pole double-throw switch (SPDT)s to be arranged on same switch chip.
It addition, Fig. 4 and Fig. 5 is schematically illustrating of arranging between every pair of HDMI high-speed differential signal line and USB Type C respective pin that one group of analog switch carries out, circuit i.e. includes four groups of high-speed analog switchs and four slow-type analog switches altogether.It is appreciated that, in other embodiments of the present utility model, in the way of an analog switch can being set between the employing each HDMI holding wire and USB Type C respective pin in a pair differential signal line, so, circuit includes eight high-speed analog switchs and four slow-type analog switches altogether.
During actually used, the direction of each analog switch can also be given tacit consent to and be in the first gating end channel status, i.e. acquiescence analog switch is in forward intercalation model, the most only when the direction that user inserts USB Type C is reverse, just control analog switch switching direction, thus reduce switch handover operation and response time, improve data transmission efficiency.
As from the foregoing, in this utility model embodiment, by going to replace the original signal name on USB Type C with the signal name of HDMI, make HDMI signal and usb signal share USB Type C signal line at a high speed to carry out data transmission, be functionally equivalent to only support that the standard USB Type C interface conversion of USB 3.0 data transmission is in order to a HDMI is plus a USB2.0 interface by original.
Embodiment three
Fig. 6 is the application scenarios schematic diagram of the portable set of one embodiment of this utility model, illustrates the work process of the portable set of this utility model embodiment below in conjunction with a concrete application scenarios.
See Fig. 6, portable set 61 carries out data interaction with wearing end 62, concrete, user thinks when use is worn end broadcasting video or plays game, first start micro-control unit (the Central Processing Unit of portable set end 61, CPU), utilize micro-control unit that video data or game data are decoded, give the HDMI controller within CPU afterwards and by USB Type C interface, HDMI signal is exported.When USB Type C cable (two ends of this cable are both provided with USB Type C male) is inserted the USB Type C wearing end 62, CPU is communicated with wearing end 62 by the iic bus (i.e. SCL in USB Type C interface and SDA signal line) in USB Type C, if communicating successfully, then the HDMI data of portable set end 61 are normally passed to and wear end 62, then 62 show by wearing end.Unsuccessful if communicating, CPU controls in switching circuit behind the direction of analog switch, continues and wears end 62 and communicate, successful then HDMI data normally passed to and wear end 62, if the most unsuccessful, closedown HDMI exports.
Embodiment four
Fig. 7 is the flow chart of the control HDMI signal output method of one embodiment of this utility model, sees Fig. 7, and the method includes:
Step S71, arranges analog switch between HDMI HDMI signal output pin and the respective pin of general-purpose serial bus USB Type-C interface of the micro-control unit of portable set；
Step S72, utilizes the positive and negative direction that micro-control unit detection USB Type-C interface is inserted into, and according to the difference of direction of insertion, the control signal of output correspondence is to analog switch；
Step S73, utilizes analog switch according to control signal switching switch direction so that HDMI signal exports via the corresponding pin of USB Type-C interface.
In an embodiment of the present utility model, step S71 specifically includes:
Choosing the Data2 in HDMI signal output pin positive and negative, Clock is positive and negative, and Data1 is positive and negative, the positive and negative four pairs of differential signal line pins of Data0, and consumer electronics controls CEC pin, hot plug detection HPD pin, SDA pin, SCL pin；
Choose the respective pin of USB Type-C interface: A2A3, A10A11, B2B3, B10B11 tetra-to differential signal line pin, and A5 pin, A8 pin, B8 pin, B5 pin；
The common port arranging an analog switch is connected to the positive pin of Data2 of HDMI signal output pin, the the first gating end arranging this analog switch is connected to the A2 pin of USB Type-C interface, and the second gating end arranging this analog switch is connected to the B2 pin of USB Type-C interface；
Arrange the common port of an analog switch to be connected to the Data2 of HDMI signal output pin and bear pin, the the first gating end arranging this analog switch is connected to the A3 pin of USB Type-C interface, and the second gating end arranging this analog switch is connected to the B3 pin of USB Type-C interface；
Arrange the common port of an analog switch to be connected to the Data0 of HDMI signal output pin and bear pin, the the first gating end arranging this analog switch is connected to the A10 pin of USB Type-C interface, and the second gating end arranging this analog switch is connected to the B10 pin of USB Type-C interface；
The common port arranging an analog switch is connected to the positive pin of Data0 of HDMI signal output pin, the the first gating end arranging this analog switch is connected to the A11 pin of USB Type-C interface, and the second gating end arranging this analog switch is connected to the B11 pin of USB Type-C interface；
Arrange the common port of an analog switch to be connected to the Clock of HDMI signal output pin and bear pin, the the first gating end arranging this analog switch is connected to the B10 pin of USB Type-C interface, and the second gating end arranging this analog switch is connected to the A10 pin of USB Type-C interface；
The common port arranging an analog switch is connected to the positive pin of Clock of HDMI signal output pin, the the first gating end arranging this analog switch is connected to the B11 pin of USB Type-C interface, and the second gating end arranging this analog switch is connected to the A11 pin of USB Type-C interface；
The common port arranging an analog switch is connected to the positive pin of Data1 of HDMI signal output pin, the the first gating end arranging this analog switch is connected to the B2 pin of USB Type-C interface, and the second gating end arranging this analog switch is connected to the A2 pin of USB Type-C interface；
Arrange the common port of an analog switch to be connected to the Data1 of HDMI signal output pin and bear pin, the the first gating end arranging this analog switch is connected to the B3 pin of USB Type-C interface, and the second gating end arranging this analog switch is connected to the A3 pin of USB Type-C interface；
The common port arranging an analog switch is connected to the CEC pin of HDMI signal output pin, the the first gating end arranging this analog switch is connected to the A5 pin of USB Type-C interface, and the second gating end arranging this analog switch is connected to the B5 pin of USB Type-C interface；
The common port arranging an analog switch is connected to the SCL pin of HDMI signal output pin, the the first gating end arranging this analog switch is connected to the A8 pin of USB Type-C interface, and the second gating end arranging this analog switch is connected to the B8 pin of USB Type-C interface；
The common port arranging an analog switch is connected to the SDA pin of HDMI signal output pin, the the first gating end arranging this analog switch is connected to the B8 pin of USB Type-C interface, and the second gating end arranging this analog switch is connected to the A8 pin of USB Type-C interface；
The common port arranging an analog switch is connected to the HPD pin of HDMI signal output pin, the the first gating end arranging this analog switch is connected to the B5 pin of USB Type-C interface, and the second gating end arranging this analog switch is connected to the A5 pin of USB Type-C interface.
In an embodiment of the present utility model, step S72 specifically includes:
When micro-control unit detects that USB Type-C interface is inserted by forward, send the first control signal making analog switch be in the first gating end channel status to analog switch；When detecting that USB Type-C interface is reversed insertion, send the second control signal making analog switch be in the second gating end channel status to analog switch；
Utilize analog switch according to control signal switching switch direction so that HDMI signal exports via the corresponding pin of USB Type-C interface and includes:
Receive the first control signal or the second control signal, and control the first gating end Guan Bi according to the first control signal, make analog switch be in the first gating end channel status, or control the second gating end Guan Bi according to the second control signal, make analog switch be in the second gating end channel status.
In an embodiment of the present utility model, shown in Fig. 7, method also includes: arranges each analog switch acquiescence and is in the first gating end channel status.
In an embodiment of the present utility model, step S71 also includes:
Between HDMI HDMI signal output pin and the respective pin of general-purpose serial bus USB Type-C interface of the micro-control unit of portable set, single-pole double-throw switch (SPDT) is set.
It should be noted that, HDMI signal to be output in the portable set of the HDMI signal specifically above-described embodiment in this control HDMI signal output method in the present embodiment, therefore, the step that realizes of the control HDMI signal output method of this utility model embodiment may refer to the related description of aforementioned portable devices part, repeats no more here.
In summary, the technical scheme of this utility model embodiment has the advantage that
1) utilize the part pin of USB Type-C interface of portable set to transmit HDMI signal, it is achieved that can correctly export HDMI signal in the case of USB Type-C interface forward inserts or reversely inserts.
2) in the pin of USB Type-C interface, leave the signal transmission passage of USB, for transmitting usb data, realize not only supporting HDMI data but also support the transmission of usb data, so user has only to perform once to insert interface operation during using, save user time, user-friendly, optimize user's experience.
3) have only in portable set, arrange a USB Type-C interface, achieve USB data transmission, quick charge and HDMI audio-video signal three kinds of functions of transmission, compared with the equipment that existing existing HDMI has again USB interface, eliminate HDMI, device structure is compacter, has saved equipment overall space, improves the market competitiveness of portable set.
The foregoing is only preferred embodiment of the present utility model, be not intended to limit protection domain of the present utility model.All any modification, equivalent substitution and improvement etc. made within spirit of the present utility model and principle, are all contained in protection domain of the present utility model.
Claims (5)
1. a portable set, it is characterised in that this portable set includes: micro-control unit is logical
With serial bus USB Type-C interface, and multiple analog switch；
Each described analog switch is arranged on the HDMI HDMI of described micro-control unit
Between the respective pin of signal output pin and described USB Type-C interface；
Described micro-control unit, for detecting the positive and negative direction that described USB Type-C interface is inserted into,
And according to the difference of direction of insertion, the control signal of output correspondence gives described analog switch；
Described analog switch, for according to described control signal switching switch direction so that HDMI signal
Export via the corresponding pin of USB Type-C interface.
Portable set the most according to claim 1, it is characterised in that described HDMI signal
Output pin includes: Data2 is positive and negative, and Clock is positive and negative, and Data1 is positive and negative, the positive and negative four pairs of difference of Data0
Holding wire pin, and consumer electronics controls CEC pin, hot plug detects HPD pin, SDA
Pin, SCL pin；
The respective pin of described USB Type-C interface includes: A2A3, A10A11, B2B3, B10B11
Four pairs of differential signal line pins, and A5 pin, A8 pin, B8 pin, B5 pin；
The common port of one described analog switch is just being connected to the Data2 of described HDMI signal output pin
Pin, the first gating end of this analog switch is connected to the A2 pin of described USB Type-C interface, should
Second gating end of analog switch is connected to the B2 pin of described USB Type-C interface；
The common port of one described analog switch is connected to the Data2 of described HDMI signal output pin and bears
Pin, the first gating end of this analog switch is connected to the A3 pin of described USB Type-C interface, should
Second gating end of analog switch is connected to the B3 pin of described USB Type-C interface；
The common port of one described analog switch is connected to the Data0 of described HDMI signal output pin and bears
Pin, the first gating end of this analog switch is connected to the A10 pin of described USB Type-C interface,
Second gating end of this analog switch is connected to the B10 pin of described USB Type-C interface；
The common port of one described analog switch is just being connected to the Data0 of described HDMI signal output pin
Pin, the first gating end of this analog switch is connected to the A11 pin of described USB Type-C interface,
Second gating end of this analog switch is connected to the B11 pin of described USB Type-C interface；
The common port of one described analog switch is connected to the Clock of described HDMI signal output pin and bears
Pin, the first gating end of this analog switch is connected to the B10 pin of described USB Type-C interface,
Second gating end of this analog switch is connected to the A10 pin of described USB Type-C interface；
The common port of one described analog switch is just being connected to the Clock of described HDMI signal output pin
Pin, the first gating end of this analog switch is connected to the B11 pin of described USB Type-C interface,
Second gating end of this analog switch is connected to the A11 pin of described USB Type-C interface；
The common port of one described analog switch is just being connected to the Data1 of described HDMI signal output pin
Pin, the first gating end of this analog switch is connected to the B2 pin of described USB Type-C interface, should
Second gating end of analog switch is connected to the A2 pin of described USB Type-C interface；
The common port of one described analog switch is connected to the Data1 of described HDMI signal output pin and bears
Pin, the first gating end of this analog switch is connected to the B3 pin of described USB Type-C interface, should
Second gating end of analog switch is connected to the A3 pin of described USB Type-C interface；
The common port of one described analog switch is connected to the CEC pipe of described HDMI signal output pin
Foot, the first gating end of this analog switch is connected to the A5 pin of described USB Type-C interface, this mould
The the second gating end intending switch is connected to the B5 pin of described USB Type-C interface；
The common port of one described analog switch is connected to the SCL pipe of described HDMI signal output pin
Foot, the first gating end of this analog switch is connected to the A8 pin of described USB Type-C interface, this mould
The the second gating end intending switch is connected to the B8 pin of described USB Type-C interface；
The common port of one described analog switch is connected to the SDA pipe of described HDMI signal output pin
Foot, the first gating end of this analog switch is connected to the B8 pin of described USB Type-C interface, this mould
The the second gating end intending switch is connected to the A8 pin of described USB Type-C interface；
The common port of one described analog switch is connected to the HPD pipe of described HDMI signal output pin
Foot, the first gating end of this analog switch is connected to the B5 pin of described USB Type-C interface, this mould
The the second gating end intending switch is connected to the A5 pin of described USB Type-C interface.
Portable set the most according to claim 2, it is characterised in that
Described micro-control unit specifically for, detecting that described USB Type-C interface is inserted by forward
Time, the first control letter making analog switch be in the first gating end channel status is sent to described analog switch
Number；When detecting that described USB Type-C interface is reversed insertion, send to described analog switch and make
Analog switch is in the second control signal of the second gating end channel status；
Described analog switch specifically for, receive described first control signal or described second control signal,
And control the first gating end Guan Bi according to described first control signal, make analog switch be in the first gating end
Channel status, or control the second gating end Guan Bi according to described second control signal, make at analog switch
End channel status is gated in second.
Portable set the most according to claim 3, it is characterised in that each described analog switch
Acquiescence is in the first gating end channel status.
5. according to the portable set described in any one of claim 1-4, it is characterised in that described simulation
Switch is single-pole double-throw switch (SPDT), and multiple described single-pole double-throw switch (SPDT)s are arranged on same switch chip.
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| CN201521139101.3U CN205540713U (en) | 2015-12-31 | 2015-12-31 | Portable device |
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| CN201521139101.3U CN205540713U (en) | 2015-12-31 | 2015-12-31 | Portable device |
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| JP2021184149A (en) * | 2020-05-21 | 2021-12-02 | Ｎｅｃフィールディング株式会社 | Working terminal, console connection control system, console connection control method, and program |
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