CN112486864A - Automatic adjustment method for Type-C information source transmission picture, electronic equipment and storage medium - Google Patents
Automatic adjustment method for Type-C information source transmission picture, electronic equipment and storage medium Download PDFInfo
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- CN112486864A CN112486864A CN202011311834.6A CN202011311834A CN112486864A CN 112486864 A CN112486864 A CN 112486864A CN 202011311834 A CN202011311834 A CN 202011311834A CN 112486864 A CN112486864 A CN 112486864A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000001514 detection method Methods 0.000 claims abstract description 28
- 238000004590 computer program Methods 0.000 claims description 4
- 230000008054 signal transmission Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/10—Program control for peripheral devices
- G06F13/12—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor
- G06F13/124—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor where hardware is a sequential transfer control unit, e.g. microprocessor, peripheral processor or state-machine
- G06F13/126—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor where hardware is a sequential transfer control unit, e.g. microprocessor, peripheral processor or state-machine and has means for transferring I/O instructions and statuses between control unit and main processor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
Abstract
The invention provides a method for automatically adjusting a Type-C information source transmission picture, which comprises the following steps: detecting a video signal, detecting the video signal through a signal detection pin of the Type-C interface, and outputting the signal to a system chip; and judging the signal stability, judging whether a signal output by the Type-C interface is stable by the system chip, otherwise, sending a control command to the Type-C interface, and setting a differential signal line transmitted by the Type-C interface into one pair of high-speed data channels for transmission. The invention relates to an electronic device and a storage medium, which are used for executing a Type-C information source transmission picture automatic adjusting method. The invention solves the problem that the signals cannot be normally transmitted due to poor contact of a certain differential line in the four groups of differential lines by reducing the number of the differential line pairs for transmission, and improves the quality of the transmitted signals.
Description
Technical Field
The invention relates to the technical field of signal processing, in particular to a method for automatically adjusting a Type-C information source transmission picture, electronic equipment and a storage medium.
Background
The use of Type-C interface is becoming more and more common at present, and especially the Type-C interface can support the transmission of dp (display port) signals. However, due to the difference of the positive and negative contact of the Type-C terminal of part of the devices, there is no signal or weak signal when the side with poor contact is connected, so that the display terminal has no picture output, and the use of the client is seriously affected.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an automatic adjusting method for a Type-C information source transmission picture, which improves the quality of a transmission signal by setting a transmission difference line of a Type-C interface.
The invention provides a method for automatically adjusting a Type-C information source transmission picture, which comprises the following steps:
detecting a video signal, detecting the video signal through a signal detection pin of the Type-C interface, and outputting the signal to a system chip;
and judging the signal stability, judging whether the signal output by the Type-C interface is stable by the system chip, otherwise, sending a control command to the Type-C interface, and setting the differential signal line transmitted by the Type-C interface into one pair of high-speed data channel for transmission.
Further, in the step of detecting the video signal, when the signal detection pin of the Type-C interface detects the video signal, the signal detection pin is set to be in a signal state.
Further, in the step of detecting a video signal, when a signal detection pin of the Type-C interface detects a video signal, the level of the signal detection pin is pulled down, and the system chip detects a level change of the signal detection pin.
Furthermore, the signal detection pin is a GPIO port, and the GPIO port is connected to an IO port of the system chip.
Further, the video signal is a DP signal.
Further, in the step of judging the signal stability, the system chip judges whether the signal output by the Type-C interface is stable by calling a signal stability detection interface.
Further, the step of determining signal stability further includes sending a control command to the Type-C interface and setting the differential signal line transmitted by the Type-C interface as another pair of high-speed data channel transmission if the differential signal line transmitted by the Type-C interface is set as one pair of high-speed data channel transmission and the system chip determines that the signal output by the Type-C interface is unstable.
An electronic device, comprising: a processor;
a memory; and a program, wherein the program is stored in the memory and configured to be executed by the processor, the program comprising instructions for performing a Type-C source transfer picture automatic adjustment method.
A computer-readable storage medium having stored thereon a computer program for executing by a processor a Type-C source transmission picture automatic adjustment method.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a method for automatically adjusting a Type-C information source transmission picture, which comprises the following steps: detecting a video signal, detecting the video signal through a signal detection pin of the Type-C interface, and outputting the signal to a system chip; and judging the signal stability, judging whether a signal output by the Type-C interface is stable by the system chip, otherwise, sending a control command to the Type-C interface, and setting a differential signal line transmitted by the Type-C interface into one pair of high-speed data channels for transmission. The invention relates to an electronic device and a storage medium, which are used for executing a Type-C information source transmission picture automatic adjusting method. The invention solves the problem that the signals cannot be normally transmitted due to poor contact of a certain differential line in the four groups of differential lines by reducing the number of the differential line pairs for transmission, and improves the quality of the transmitted signals.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a flow chart of a method for automatically adjusting a Type-C source transmission picture according to the present invention;
FIG. 2 is a schematic diagram of a Type-C interface according to an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
A method for automatically adjusting a Type-C source transmission picture, as shown in fig. 1, includes the following steps:
and detecting a video signal, detecting the video signal through a signal detection pin of the Type-C interface, and outputting the signal to a system chip. In this embodiment, the video signal is a DP signal, the signal detection pin is a General-purpose input/output (GPIO) port, and the GPIO port is connected to an IO port of the system chip. When the signal detection foot of Type-C interface detects video signal, set up the signal detection foot to there being the signal state, specifically be: and the level of the signal detection pin is pulled down, and the system chip detects the level change of the signal detection pin.
Judging the signal stability, judging whether a signal output by the Type-C interface is stable by the system chip, if so, ending the process, otherwise, sending a control command to the Type-C interface, setting a differential signal line transmitted by the Type-C interface into one pair of high-speed data channel transmission, such as TX1+/RX1+/, TX1-/RX1-, then judging whether the signal output by the Type-C interface is stable by the system chip, if so, ending the process, otherwise, sending a control command to the Type-C interface, and setting the differential signal line transmitted by the Type-C interface into the other pair of high-speed data channel transmission, such as TX2+/RX2+/, TX2-/RX 2-. In this embodiment, the system chip determines whether the signal output by the Type-C interface is stable by calling the signal stability detection interface.
As shown in FIG. 2, normally, DP signals are transmitted through four pairs of differential lines, namely TX1+/RX1+/, TX1-/RX1-, TX2+/RX2+/, and TX2-/RX 2. After the education integrated machine detects that a signal output exists in a Type-C interface through a signal detection pin (DET pin) of the Type-C interface, whether a current signal is normally displayed is judged by calling a signal stability detection interface at an SOC (system on chip) end of the education integrated machine, if the signal is not stable or has no signal, a control command is sent to the Type-C interface, transmission differential signal lines are set to be TX1+/RX1+/, TX1-/RX 1-two groups of signal line transmission (namely two groups of signal transmission lines A in figure 1), if the signal is normally displayed, the transmission is finished, and if the signal is abnormal, TX2+/RX2 +/TX 2-/RX 2-two groups of signal line transmission (namely two groups of signal transmission lines B in figure 1) are set.
An electronic device, comprising: a processor;
a memory; and a program, wherein the program is stored in the memory and configured to be executed by the processor, the program comprising instructions for performing a Type-C source transfer picture automatic adjustment method.
A computer-readable storage medium having stored thereon a computer program for executing by a processor a Type-C source transmission picture automatic adjustment method.
The invention provides a method for automatically adjusting a Type-C information source transmission picture, which comprises the following steps: detecting a video signal, detecting the video signal through a signal detection pin of the Type-C interface, and outputting the signal to a system chip; and judging the signal stability, judging whether a signal output by the Type-C interface is stable by the system chip, otherwise, sending a control command to the Type-C interface, and setting a differential signal line transmitted by the Type-C interface into one pair of high-speed data channels for transmission. The invention relates to an electronic device and a storage medium, which are used for executing a Type-C information source transmission picture automatic adjusting method. The invention solves the problem that the signals cannot be normally transmitted due to poor contact of a certain differential line in the four groups of differential lines by reducing the number of the differential line pairs for transmission, and improves the quality of the transmitted signals.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; those skilled in the art can readily practice the invention as shown and described in the drawings and detailed description herein; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (9)
1. A method for automatically adjusting a Type-C information source transmission picture is characterized by comprising the following steps:
detecting a video signal, detecting the video signal through a signal detection pin of the Type-C interface, and outputting the signal to a system chip;
and judging the signal stability, judging whether the signal output by the Type-C interface is stable by the system chip, otherwise, sending a control command to the Type-C interface, and setting the differential signal line transmitted by the Type-C interface into one pair of high-speed data channel for transmission.
2. The method as claimed in claim 1, wherein the method for automatically adjusting Type-C source transmission picture comprises: and in the step of detecting the video signal, when the signal detection pin of the Type-C interface detects the video signal, the signal detection pin is set to be in a signal state.
3. The method as claimed in claim 2, wherein the method for automatically adjusting Type-C source transmission picture comprises: in the step of detecting the video signal, when the signal detection pin of the Type-C interface detects the video signal, the level of the signal detection pin is pulled down, and the system chip detects the level change of the signal detection pin.
4. The method as claimed in claim 1, wherein the method for automatically adjusting Type-C source transmission picture comprises: the signal detection pin is a GPIO port, and the GPIO port is connected with an IO port of the system chip.
5. The method as claimed in claim 3, wherein the method for automatically adjusting Type-C source transmission picture comprises: the video signal is a DP signal.
6. The method as claimed in claim 1, wherein the method for automatically adjusting Type-C source transmission picture comprises: in the step of judging the signal stability, the system chip judges whether the signal output by the Type-C interface is stable or not by calling a signal stability detection interface.
7. The method as claimed in claim 6, wherein the method for automatically adjusting Type-C source transmission picture comprises: and the step of judging the signal stability further comprises the step of sending a control command to the Type-C interface and setting the differential signal line transmitted by the Type-C interface as another pair of high-speed data channel for transmission if the differential signal line transmitted by the Type-C interface is set as one pair of high-speed data channel for transmission and the system chip judges that the signal output by the Type-C interface is unstable.
8. An electronic device, characterized by comprising: a processor;
a memory; and a program, wherein the program is stored in the memory and configured to be executed by the processor, the program comprising instructions for carrying out the method according to any one of claims 1-7.
9. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program is executed by a processor for performing the method according to any of claims 1-7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011311834.6A CN112486864A (en) | 2020-11-20 | 2020-11-20 | Automatic adjustment method for Type-C information source transmission picture, electronic equipment and storage medium |
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| CN202011311834.6A CN112486864A (en) | 2020-11-20 | 2020-11-20 | Automatic adjustment method for Type-C information source transmission picture, electronic equipment and storage medium |
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| CN206908729U (en) * | 2017-06-29 | 2018-01-19 | 深圳市东景盛电子技术有限公司 | A kind of TYPE C turn the signal conversion line of DP interfaces |
| CN109218685A (en) * | 2018-11-20 | 2019-01-15 | 广东电网有限责任公司 | A kind of vision signal output method and device |
| CN209543327U (en) * | 2019-03-18 | 2019-10-25 | 合肥惠科金扬科技有限公司 | The communicating circuit and signal transmission apparatus of compatible multiple signal source |
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| CN206908729U (en) * | 2017-06-29 | 2018-01-19 | 深圳市东景盛电子技术有限公司 | A kind of TYPE C turn the signal conversion line of DP interfaces |
| US20200226087A1 (en) * | 2017-07-20 | 2020-07-16 | Hisense Visual Technology Co., Ltd. | Terminal Device And Control Method Thereof |
| CN107544934A (en) * | 2017-09-07 | 2018-01-05 | 龙迅半导体（合肥）股份有限公司 | The two-way signaling regulation chip and USB Type C cables of a kind of USB Type C cables |
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