CN106341686B - The ARC test methods of electronic equipment and the signal generator for ARC tests - Google Patents
The ARC test methods of electronic equipment and the signal generator for ARC tests Download PDFInfo
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- CN106341686B CN106341686B CN201610822201.9A CN201610822201A CN106341686B CN 106341686 B CN106341686 B CN 106341686B CN 201610822201 A CN201610822201 A CN 201610822201A CN 106341686 B CN106341686 B CN 106341686B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/004—Diagnosis, testing or measuring for television systems or their details for digital television systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/4424—Monitoring of the internal components or processes of the client device, e.g. CPU or memory load, processing speed, timer, counter or percentage of the hard disk space used
Abstract
ARC test methods the present invention relates to a kind of electronic equipment and the signal generator for ARC tests, it is generation audio-video signal, and audio-video signal is sent to electronic equipment to be measured, after electronic equipment to be measured and the signal generator HDMI being attached thereto parts open ARC functions, it is possible to the audio signal that electronic equipment to be measured is returned according to audio-video signal is partly received by signal generator HDMI；Audio signal and internal vision signal are merged into echo signal, echo signal is sent to electronic playback devices, is played out by electronic playback devices, it is possible thereby to judge whether the audio signal of electronic equipment passback to be measured is normal.In this way, it is only necessary to by means of the electronic playback devices of a playable echo signal, no longer be additionally required using digital power amplifier, digital power amplifier would not also occur using situation in short supply, improve testing efficiency.
Description
Technical field
The present invention relates to electronic functionalities technical field of measurement and test, ARC test methods more particularly to electronic equipment and
For the signal generator of ARC tests.
Background technology
The ARC of HDMI (High Definition Multimedia Interface, high-definition multimedia interface)
(Audio Return Channel, audio feedback channel) function is the function of being increased newly in 1.4 Version Specs of HDMI, is passed through
HDMI wire connects electronic equipment and digital power amplifier, realizes that the sound of electronic equipment passes back to digital power amplification through HDMI
Device, and pass through CEC (Consumer Electronics Control, consumer electronics control) to carry out sound control.ARC functions
The coaxial or fibre circuit between electronic equipment and digital power amplifier can be reduced, simplifies connection.
When electronic equipment is connected with digital power amplifier and loudspeaker more better than electronic equipment, it is desirable to electronics to set
The sound of standby each channel is all sent out by this loudspeaker, and is not only the signal source for being directly connected to digital power amplifier and is led to
Road.So when electronic equipment is not in the signal source channels of digital power amplifier, it is necessary to which electronic equipment passes through voice signal
The ARC of HDMI returns to digital power amplifier, and digital power amplifier loudspeaker is made to send out the sound of electronic equipment current channel.
In the ARC tests of traditional HDMI, it is several to need Devices to test, digital power amplifier, loudspeaker, signal generator
Equipment completes ARC functional tests.General developer and tester are required for test HDMI ARC functions, especially develop
Personnel often will occupy equipment for a long time to debug.Since the digital power amplifier for carrying HDMI interface is relatively valuable, one is well matched
The digital power amplifier quantity used in standby test HDMI ARC is also few, thus will appear digital power amplifier use
Situation in short supply, influences testing efficiency.
Invention content
Based on this, it is necessary to cause less for the digital power amplifier of the ARC functional tests of existing electronic equipment
The problem of testing efficiency is low, the ARC test methods that a kind of electronic equipment is provided and the signal generator for ARC tests.
The ARC test methods of a kind of electronic equipment, include the following steps：
Audio-video signal is generated, audio-video signal is sent to electronic equipment to be measured；
After electronic equipment to be measured and test module open ARC functions, electronic equipment to be measured is received by test module
The audio signal of return, wherein, test module is connect with electronic equipment to be measured, and audio signal is electronic equipment to be measured from audio and video
It is extracted in signal；
Vision signal is obtained, audio signal and vision signal are merged, echo signal is obtained, echo signal is sent
To electronic playback devices, echo signal is played by electronic playback devices, wherein, electronic playback devices have the work(of sound broadcasting
Energy.
It is generation audio-video signal, and audio-video signal is sent to according to the ARC test methods of above-mentioned electronic equipment
Electronic equipment to be measured, after electronic equipment to be measured and the test module being attached thereto open ARC functions, it is possible to pass through
ARC receives the audio signal that electronic equipment to be measured is returned according to audio-video signal；Audio signal and the vision signal obtained are closed
And into echo signal, echo signal is sent to electronic playback devices, is played out by electronic playback devices, it is possible thereby to judge
Whether the audio signal of electronic equipment passback to be measured is normal.Since the audio signal that electronic equipment to be measured returns being regarded with what is obtained
Frequency signal is synthesized, and obtains echo signal, and the echo signal is sent to electronic playback devices and is played out, in this way,
The electronic playback devices (such as general television set) by means of a playable echo signal are only needed, general electronics plays
Equipment has the function of sound broadcasting, and at low cost, has the function of the electronic playback devices of ARC particularly with research and development, production
Manufacturer, ordinary electronic playback equipment are easy to be configured, and are no longer additionally required using digital power amplifier, number would not also occur
Word power amplifier uses situation in short supply, improves testing efficiency.
A kind of signal generator for ARC tests, including signal generation module, signal transmitting module, CEC controllers, the
One test module and the second test module；
First test module is connect respectively with CEC controllers, the second test module, electronic equipment to be measured, signal generation mould
Block is connect by signal transmitting module with electronic equipment to be measured, and the second test module is also connect with electronic playback devices；Wherein, it is electric
Sub- playback equipment has the function of sound broadcasting；
Signal generation module is used to generate audio-video signal；
Signal transmitting module is used to audio-video signal being sent to electronic equipment to be measured；
CEC controllers are used to control the opening and closing of the first test module and the ARC functions of electronic equipment to be measured；
After electronic equipment to be measured and the first test module open ARC functions, the first test module receives electronics to be measured
The audio signal that equipment returns, the second test module is forwarded to by audio signal；Wherein, audio signal be electronic equipment to be measured from
It is extracted in audio-video signal；
Second test module obtains vision signal, and audio signal and vision signal are merged, and echo signal is obtained, by target
Signal is sent to electronic playback devices, and echo signal is played by electronic playback devices.
According to the above-mentioned signal generator tested for ARC, including signal generation module, signal transmitting module, CEC controls
Device, the first test module and the second test module；Signal generation module generates audio-video signal, and signal transmitting module is by audio and video
Signal is sent to electronic equipment to be measured, and ARC functions are opened in electronic equipment to be measured and the first test module being attached thereto
Afterwards, the first test module can receive the audio signal that electronic equipment to be measured is returned according to audio-video signal；Second test mould
Audio signal and the vision signal obtained are merged into echo signal by block, echo signal are sent to electronic playback devices, by electricity
Sub- playback equipment plays out, it is possible thereby to judge whether the audio signal of electronic equipment passback to be measured is normal.General electronics is broadcast
The function that equipment has sound broadcasting is put, and at low cost, the electronics broadcasting for having the function of ARC particularly with research and development, production is set
Standby manufacturer, ordinary electronic playback equipment is easy to be configured, and in entire test process, is no longer additionally required and is put using digital power
Big device digital power amplifier would not also occurs using situation in short supply, improve testing efficiency.
Description of the drawings
Fig. 1 is the flow diagram of the ARC test methods of electronic equipment in one embodiment；
Fig. 2 is the structure diagram of the signal generator for ARC tests in one embodiment；
Fig. 3 is the structure diagram of the signal generator for ARC tests in one embodiment；
Fig. 4 is the structure diagram of the signal generator for ARC tests in one embodiment；
Fig. 5 is the structure diagram of the signal generator for ARC tests in one embodiment；
Fig. 6 is the structure diagram of the signal generator for ARC tests in one embodiment；
Fig. 7 is the structure diagram of the signal generator for ARC tests in one embodiment；
Fig. 8 is device connection diagram when testing television set ARC in one embodiment；
Fig. 9 be in one embodiment concrete application when signal generator internal structure schematic diagram；
Figure 10 (a) be in one embodiment concrete application when signal generator signal flow to schematic diagram；
Figure 10 (b) be in one embodiment concrete application when signal generator signal flow to schematic diagram.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, with reference to the accompanying drawings and embodiments, to this
Invention is described in further detail.It should be appreciated that the specific embodiments described herein are only used to explain the present invention,
Do not limit protection scope of the present invention.
It is shown in Figure 1, the flow diagram of the ARC test methods of the electronic equipment for the present invention.In the embodiment
The ARC test methods of electronic equipment, include the following steps：
Step S101：Audio-video signal is generated, audio-video signal is sent to electronic equipment to be measured；
Step S102：After electronic equipment to be measured and test module open ARC functions, received by test module to be measured
The audio signal that electronic equipment returns, wherein, test module is connect with electronic equipment to be measured, and audio signal is electronic equipment to be measured
It is extracted from audio-video signal；
In this step, audio signal is that electronic equipment to be measured receives after audio-video signal that therefrom extraction obtains, and is
For the signal transmitted in ARC, after electronic equipment to be measured and test module open ARC functions, audio signal could treated
It surveys electronic equipment and test module is transmitted；
Step S103：Vision signal is obtained, audio signal and vision signal are merged, echo signal is obtained, by mesh
Mark signal is sent to electronic playback devices, and echo signal is played by electronic playback devices, wherein, electronic playback devices have sound
The function of broadcasting.
In this step, vision signal can be received from the external world, can also be generated from inside.
In the present embodiment, audio-video signal is sent to electronic equipment to be measured, in electricity to be measured by Mr. into audio-video signal
After sub- equipment and the test module being attached thereto open ARC functions, it is possible to receive the audio that electronic equipment to be measured returns
Signal；Audio signal and the vision signal obtained are merged into echo signal, echo signal is sent to electronic playback devices, by
Electronic playback devices play out, it is possible thereby to judge whether the audio signal of electronic equipment passback to be measured is normal.Due to that will treat
It surveys the audio signal that electronic equipment returns to be synthesized with the vision signal obtained, obtains echo signal, and the target is believed
Number being sent to electronic playback devices plays out, in this way, it is only necessary to be set by means of the electronics broadcasting of a playable echo signal
Standby (such as general television set), general electronic playback devices have the function of sound broadcasting, and at low cost, particularly with
Research and development, production have the function of the electronic playback devices manufacturer of ARC, and ordinary electronic playback equipment is easy to be configured, and no longer additionally need
Digital power amplifier is used, digital power amplifier would not also occur using situation in short supply, improve testing efficiency.
The step of obtaining vision signal in one of the embodiments, includes the following steps：
Vision signal is extracted from audio-video signal.
In the present embodiment, vision signal can be extracted from the audio-video signal of generation, directly utilize audio-video signal
ARC surveys can be reduced to avoid from the extraneous additional connection for receiving vision signal, saving the external equipment with providing vision signal
The cost of examination.In addition, extracting vision signal from audio-video signal, then itself and the audio signal that electronic equipment to be measured returns are closed
And and play, it can be determined that whether the audio signal that electronic equipment to be measured returns synchronouss with vision signal, so as to more accurately sentence
Whether the ARC functions of disconnected electronic equipment are normal.
Preferably, the external vision signal provided can also be used to be tested, is improved with various comprehensive test to be measured
The robustness of electronic equipment.
The step of electronic equipment to be measured and test module open ARC functions in one of the embodiments, includes following
Step：
The ARC functions and test module of the electronic equipment to be measured are opened according to the open command that electronic equipment to be measured triggers
ARC functions；
Alternatively,
The ARC functions of test module and the ARC functions of electronic equipment to be measured are opened according to the open command locally triggered.
In the present embodiment, the unlatching of the ARC functions of electronic equipment to be measured and test module, can be by electronic equipment to be measured
Method can also be applied to signal generator, is exactly controlled by signal generator by control by locally controlling.If by electricity to be measured
Sub- equipment control, after electronic equipment to be measured triggers ARC function open commands, electronic equipment to be measured sends open command, signal
Generator receives response after open command and opens the ARC functions of interface, and electronic equipment to be measured opens ARC work(after receiving response
Energy；If by locally controlling, signal generator triggering open command, signal generator sends open command, and electronic equipment to be measured is received
Response and ARC functions are opened after to open command, signal generator receives the ARC functions that interface is opened after response.Both ARC
The opening ways of function can need to carry out flexible modulation according to test.
The ARC test methods of electronic equipment are further comprising the steps of in one of the embodiments,：
After electronic equipment to be measured and test module are turned off ARC functions, audio-video signal is sent to electronics broadcasting and is set
It is standby, by electronic playback devices playing audio-video signal.
In the present embodiment, it after electronic equipment to be measured and test module are turned off ARC functions, is used for although can not play
The audio signal of ARC functions is tested, but the audio-video signal being originally generated can be played so that test module still can be by common side
Formula makees common test work to other electronic equipments to be measured.
According to the ARC test methods of above-mentioned electronic equipment, the present invention also provides a kind of signal generator for ARC tests,
Just the embodiment of the signal generator for ARC tests of the present invention is described in detail below.
It is shown in Figure 2, the embodiment of the signal generator for ARC tests for the present invention.ARC is supplied in the embodiment
The signal generator of test includes signal generation module 210, signal transmitting module 220, CEC controllers 230, the first test module
240 and second test module 250；
First test module 240 is connect respectively with CEC controllers 230, the second test module 250, electronic equipment to be measured, letter
Number generation module 220 is connect by signal transmitting module 220 with electronic equipment to be measured, and the second test module 250 is also broadcast with electronics
Put equipment connection；Wherein, electronic playback devices have the function of sound broadcasting；
Signal generation module 210 is used to generate audio-video signal；
Signal transmitting module 220 is used to audio-video signal being sent to electronic equipment to be measured；
CEC controllers 230 are used to control the opening and closing of the ARC functions of the first test module 240；
After electronic equipment to be measured and the first test module 240 open ARC functions, the reception of the first test module 240 is treated
The audio signal that electronic equipment returns is surveyed, audio signal is forwarded to the second test module 250；Wherein, audio signal is to be measured
What electronic equipment was extracted from audio-video signal；
Second test module 250 obtains vision signal, and audio signal and vision signal are merged, and obtains echo signal, will
Echo signal is sent to electronic playback devices, and echo signal is played by electronic playback devices.
In the present embodiment, the signal generator for ARC tests includes signal generation module, signal transmitting module, CEC controls
Device processed, the first test module and the second test module；Signal generation module generates audio-video signal, and signal transmitting module regards sound
Frequency signal is sent to electronic equipment to be measured, and ARC work(is opened in electronic equipment to be measured and the first test module being attached thereto
After energy, the first test module can receive the audio signal that electronic equipment to be measured returns；Second test module is by audio signal
Be merged into echo signal with the vision signal of acquisition, echo signal be sent to electronic playback devices, by electronic playback devices into
Row plays, it is possible thereby to judge whether the audio signal of electronic equipment passback to be measured is normal.General electronic playback devices have sound
The function that sound plays, and it is at low cost, there is the electronic playback devices manufacturer of ARC, common electricity particularly with research and development, production
Sub- playback equipment is easy to be configured, and in entire test process, is no longer additionally required using digital power amplifier, also would not
There is digital power amplifier using situation in short supply, improve testing efficiency.
In one of the embodiments, as shown in figure 3, the second test module 250 is also connect with signal generation module 210；
Second test module 250 obtains audio-video signal, and vision signal is extracted from audio-video signal.
In the present embodiment, vision signal can be extracted from the audio-video signal of generation, directly utilize audio-video signal
ARC surveys can be reduced to avoid from the extraneous additional connection for receiving vision signal, saving the external equipment with providing vision signal
The cost of examination.In addition, extracting vision signal from audio-video signal, then itself and the audio signal that electronic equipment to be measured returns are closed
And and play, it can be determined that whether the audio signal that electronic equipment to be measured returns synchronouss with vision signal, so as to more accurately sentence
Whether the ARC functions of disconnected electronic equipment are normal.The external vision signal provided can also be used to be tested, with various comprehensive
Test improves the robustness of electronic equipment to be measured.
In one of the embodiments, as shown in figure 4, CEC controllers 230 are also connect with electronic equipment to be measured；
After electronic equipment to be measured triggers ARC function open commands, CEC controllers 230 receive electronic equipment to be measured and send
Unlatching request instruction, according to opening request instruction response and opening the ARC functions of the first test module 240, electronics to be measured sets
Standby unlatching ARC functions after receiving response；
Alternatively,
As shown in figure 5, further including control panel 260 for the signal generator of ARC tests, CEC controllers 230 pass through control
Panel 260 receives open command and is sent to electronic equipment to be measured, and after electronic equipment to be measured receives open command, response is simultaneously opened
ARC functions, CEC controllers 230 receive the ARC functions that the first test module 240 is opened after response.
In the present embodiment, the unlatching of the ARC functions of electronic equipment to be measured and the first test module 240, can be by be measured
Electronic equipment controls, and can also be controlled by signal generator.The opening ways of both ARC functions can be needed according to test into
Row flexible modulation.
Preferably, CEC controllers 230 are connect by HDMI wire with electronic equipment to be measured.
In one of the embodiments, as shown in figure 3, the second test module 250 is also connect with signal generation module 210；
After electronic equipment to be measured and the first test module 240 are turned off ARC functions, the second test module 250 obtains sound
Audio-video signal is sent to electronic playback devices by vision signal, by electronic playback devices playing audio-video signal.
In the present embodiment, after electronic equipment to be measured and the first test module 240 are turned off ARC functions, although electronics
Playback equipment can not play the audio signal for testing ARC functions, but can play the audio-video signal being originally generated so that
This interface of signal generator still can make common test work by ordinary signal generation mode to other electronic equipments to be measured.
In one of the embodiments, as shown in fig. 6, the first test module 240 is defeated including first interface 241, the first ARC
242 and the first ARC delivery outlets 243 of entrance, the second test module 250 include second interface 251, the 2nd ARC input ports 252 and the
Two ARC delivery outlets 253；First test module 240 and the second test module 250 are the identical test modules of function；
CEC controllers 230 are also connect with the second test module 250, the first ARC input ports 242 and the 2nd ARC delivery outlets
253 connections, the first ARC delivery outlets 243 are connect with the 2nd ARC input ports 252；
First test module 240 receives audio signal by first interface 241, and passes through the first ARC delivery outlets 243 by sound
Frequency signal is forwarded to the 2nd ARC input ports 252；
Echo signal is sent to electronic playback devices by the second test module 250 by second interface 251.
In the present embodiment, the first test module 240 receives the audio of electronic equipment return to be measured by first interface 241
Signal, and pass through the first ARC delivery outlets 243 and audio signal is forwarded to the 2nd ARC input ports 252；Second test module 250 is logical
It crosses second interface 251 and echo signal is sent to electronic playback devices, can realize the test of ARC functions；
As shown in fig. 7, if 241 misconnection of first interface, to electronic playback devices, 251 misconnection of third interface is set to electronics to be measured
It is standby, since the first test module 240 and the second test module 250 are the identical test modules of function, the first ARC input ports 242
It is connect with the 2nd ARC delivery outlets 253, the first ARC delivery outlets 243 are connect with the 2nd ARC input ports 252, and CEC is controlled at this time
Device 230 controls the opening and closing of the ARC functions of the second test module 250, and the second test module 250 passes through second interface 251
Audio signal is received, and passes through the 2nd ARC input ports 252 and audio signal is forwarded to the first ARC input ports 242；First test
Module 240 synthesizes echo signal, and echo signal is sent to electronic playback devices by first interface 241.In this way, it can appoint
One test module of meaning selection is connect with electronic equipment to be measured, another test module is selected to be connect with electronic playback devices, is kept away
The problem of exempting from wiring error.
In a specific embodiment, the signal generator for ARC tests can be applied to the ARC surveys of television set HDMI
Examination, electronic playback devices can be the TVs with HDMI.Test module include HDMI terminals, HDMI encoders, ARC circuits and
Interlock circuit.
As shown in figure 8, when carrying out ARC functional tests, the original audio-video signal of signal generator generation gives TV to be measured,
This signal can be transmitted by HDMI or the biographies such as CVBS (composite video signal), YPbPr (color difference video signal)
It is defeated；The HDMI ports of signal generator are connected with the HDMI ports of TV to be measured by HDMI；Signal generator another
HDMI ports are connected with the HDMI ports of another TV by HDMI.
TV to be measured is switched to this corresponding original signal source channels, and TV to be measured is sent out by HDMI ports and signal
Raw device carries out CEC communications (i.e. ARC states control), opens ARC functions.TV to be measured decodes the audio in original audio-video signal
Signal on the encoded ARC circuits for being output to HDMI channels, is transferred to signal generator.Signal generator is by arc signal two
Cross-patch is carried out on a HDMI, merges with internal vision signal, another way HDMI signals is encoded into, by this road HDMI signals
The HDMI ports for the TV device for serving as electronic playback devices are transmitted to, the ARC functions of television set to be measured can be tested.Whole process
It no longer needs to use digital power amplifier.
Consider that, in television to be measured, HDMI ports are usually more than one, but carry according to HDMI standard requirement and practicability
There are one the HDMI ports of ARC functions.Also, when television set is switched to the corresponding channels of HDMI ARC, this channel is shown
Image when, ARC functions be close.When the ARC functions of television set need to open, need through CEC communication requests therewith
The signal generator HDMI port open ARC functions of connection after intercommunication success, are opened ARC functions, could so be transmitted
Arc signal.
As shown in figure 9, in signal generator, every group of HDMI includes two test modules, and there are one each test modules
HDMI encoders, a HDMI port, the sound of the ARC connections of one of HDMI encoders to another HDMI encoder
Frequency input terminal is formed cross interconnected.
In the present invention, HDMI encoders use ADV7511, other to carry SPDIF (Sony/Philips Digital
Interface Format) the HDMI coding chips of audio input also may be used.ADV7511 provides multipath audio signal input interface.
As shown in Figure 10 (a), when the ARC functions of certain HDMI test module are closed, signal generator system controls another HDMI to compile
Code device passes through I2The audio signal that S (Inter-IC Sound) interface signal generators internal system generates, passes through video
The vision signal that interface signal generator internal system generates exports audio-video signal from HDMI ports；Such as Figure 10 (b)
Shown, when the ARC functions of certain HDMI test module are opened, the control of signal generator system is compiled with another HDMI of group HDMI
Code device uses this arc signal to switch to SPDIF signal input modes as audio signal, signal is received by video interface
The vision signal generated inside generator system synthesizes audio signal and vision signal, is exported from HDMI ports.
The switch control of ARC, is completed by CEC communication control.It can initiate to ask by TV to be tested, it can also be by signal
Generator initiates request.The open and close of ARC are needed to be adjusted by test.
When the ARC of two HDMI test modules is closed, HDMI encoders receive the sound that audio and video generation module generates
Vision signal；
When the ARC functions of 1 test modules of HDMI are opened, 2 encoders of HDMI receive what audio and video generation module generated
The ARC audio signals of 1 encoder transmission of vision signal and HDMI in audio-video signal；
When the ARC functions of 2 test modules of HDMI are opened, 1 encoders of HDMI receive what audio and video generation module generated
The ARC audio signals of 2 encoder transmission of vision signal and HDMI in audio-video signal.
When the ARC of 1 test modules of HDMI and 2 test modules of HDMI is switched on, although link communicates, two connections
TV sound source, but the general TV loudspeaker of ARC openings are in mute state each other, so ARC functional tests cannot be carried out.
The two-way HDMI test modules of signal generator are not completely independent, and HDMI test modules return TV all the way
Audio signal is transferred to another way HDMI test modules as audio input, so as to not have to digital power amplifier, and uses general
The television set that passband has HDMI can detect the audio of TV passback to be measured.The ARC circuits difference of two-way HDMI test modules
Intersect the audio input interface for passing back to other side, thus when making ARC functional tests, without differentiating how two HDMI ports connect
Line, two HDMI ports equivalents, eliminates the puzzlement of wiring error.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that those of ordinary skill in the art are come
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. the ARC test methods of a kind of electronic equipment, which is characterized in that include the following steps：
Audio-video signal is generated, the audio-video signal is sent to electronic equipment to be measured；
After the electronic equipment to be measured and test module open ARC functions, received by the test module described to be measured
The audio signal that electronic equipment returns, wherein, the test module is connect with the electronic equipment to be measured, and the audio signal is
What the electronic equipment to be measured was extracted from the audio-video signal；
Vision signal is obtained, the audio signal and the vision signal are merged, echo signal is obtained, by the target
Signal is sent to electronic playback devices, and the echo signal is played by the electronic playback devices, wherein, the electronics broadcasting is set
The standby function of having sound broadcasting.
2. the ARC test methods of electronic equipment according to claim 1, which is characterized in that the acquisition vision signal
Step includes the following steps：
The vision signal is extracted from the audio-video signal.
3. the ARC test methods of electronic equipment according to claim 1, which is characterized in that the electronic equipment to be measured and
The test module is opened the step of ARC functions and is included the following steps：
The ARC functions of the electronic equipment to be measured and the test module are opened according to the open command that electronic equipment to be measured triggers
ARC functions；
Alternatively,
The ARC functions of the test module and the ARC work(of the electronic equipment to be measured are opened according to the open command locally triggered
Energy.
4. the ARC test methods of electronic equipment as claimed in any of claims 1 to 3, which is characterized in that further include
Following steps：
After the electronic equipment to be measured and the test module are turned off ARC functions, the audio-video signal is sent to institute
Electronic playback devices are stated, the audio-video signal is played by the electronic playback devices.
5. a kind of signal generator for ARC tests, which is characterized in that including signal generation module, signal transmitting module, CEC
Controller, the first test module and the second test module；
First test module is connect respectively with the CEC controllers, second test module, electronic equipment to be measured, institute
Signal generation module is stated to connect with the electronic equipment to be measured by the signal transmitting module, second test module also with
Electronic playback devices connect；Wherein, the electronic playback devices have the function of sound broadcasting；
The signal generation module is used to generate audio-video signal；
The signal transmitting module is used to the audio-video signal being sent to the electronic equipment to be measured；
The CEC controllers for control the unlatching of first test module and the ARC functions of the electronic equipment to be measured and
It closes；
After the electronic equipment to be measured and first test module open ARC functions, first test module receives
The audio signal that the electronic equipment to be measured returns, second test module is forwarded to by the audio signal；Wherein, audio
Signal is that electronic equipment to be measured is extracted from audio-video signal；
Second test module obtains vision signal, and the audio signal and the vision signal are merged, and obtains target letter
Number, the echo signal is sent to the electronic playback devices, the echo signal is played by the electronic playback devices.
6. the signal generator according to claim 5 for ARC tests, which is characterized in that second test module is also
It is connect with the signal generation module；
Second test module obtains the audio-video signal, and the vision signal is extracted from the audio-video signal.
7. it is according to claim 5 for ARC test signal generator, which is characterized in that the CEC controllers also with institute
State electronic equipment connection to be measured；
After electronic equipment to be measured triggering ARC functions open request, the CEC controllers receive the electronic equipment to be measured and send
Unlatching request instruction, electronic equipment to be measured and open first test module according to the unlatching request instruction response
ARC functions, the electronic equipment to be measured, which receives, opens ARC functions after the response；
Alternatively,
Control panel is further included for the signal generator of ARC tests, the CEC controllers, which receive to open by control panel, to be referred to
It enables, request open command is sent to the electronic equipment to be measured according to the open command, the electronic equipment to be measured receives institute
After stating request open command, response simultaneously opens ARC functions, after first test module receives the response, opens ARC work(
Energy.
8. the signal generator according to claim 5 for ARC tests, which is characterized in that second test module is also
It is connect with the signal generation module；
After the electronic equipment to be measured and first test module are turned off ARC functions, described in the acquisition of the second test module
The audio-video signal is sent to the electronic playback devices by audio-video signal, as described in playing the electronic playback devices
Audio-video signal.
9. the signal generator according to claim 5 for ARC tests, which is characterized in that the first test module packet
First interface, the first ARC input ports and the first ARC delivery outlets are included, second test module includes second interface, the 2nd ARC
Input port and the 2nd ARC delivery outlets；First test module and second test module are the identical test modules of function；
The CEC controllers are also connect with second test module, and the first ARC input ports are exported with the 2nd ARC
Mouth connection, the first ARC delivery outlets are connect with the 2nd ARC input ports；
First test module receives the audio signal by the first interface, and passes through the first ARC delivery outlets
The audio signal is forwarded to the 2nd ARC input ports；
The echo signal is sent to the electronic playback devices by second test module by the second interface.
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| CN108965868A (en) * | 2018-09-13 | 2018-12-07 | 深圳市爱普泰科电子有限公司 | HDMI device, test macro and method |
| CN110557592B (en) * | 2019-09-16 | 2021-12-17 | 瑞芯微电子股份有限公司 | HDMI multimedia data quality evaluation method, device and system |
| CN113163192B (en) * | 2020-01-23 | 2023-01-31 | 东莞市金锐显数码科技有限公司 | HDMI interface testing device and system |
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