CN210431620U - EDID management device and audio-video transmission device that audio-video separation set up - Google Patents
EDID management device and audio-video transmission device that audio-video separation set up Download PDFInfo
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Abstract
The utility model discloses an EDID management device that audio frequency and video separation set up, including video EDID switch, audio frequency and video input port, audio frequency and video output port and management module, wherein the video EDID switch is used for setting up the video EDID mode of video data; and the audio EDID switch is used for setting an audio EDID mode of the audio data. The EDID management device can be used for separately setting the video EDID mode and the audio EDID mode, improves the compatibility of products and meets different requirements of users. The utility model also discloses an audio and video transmission device.
Description
Technical Field
The utility model relates to a EDID field especially relates to an EDID management device and audio and video transmission device that audio and video separation set up.
Background
In an audio/video transmission device such as a distributor, a switcher, or an extender, an EDID (extended display identification data) management function is becoming more common in order to improve compatibility with audio/video data. The EDID management means that a set of EDID information (including information of video format, video resolution, audio format, audio code rate and the like) is provided for the signal source equipment, and then the signal source equipment outputs corresponding audio and video data to the audio and video transmission device according to the information of the video format, the video resolution, the audio format, the audio code rate and the like in the EDID information. There is an EDID switch (typically a dial switch or a rotary switch) on the audio/video transmission device, and the user selects an EDID mode, such as a fixed mode: providing a certain EDID information built in the audio/video transmission device for the signal source equipment, or copying the mode: and copying EDID information of a certain display device connected with the audio and video transmission device to provide the EDID information to the signal source device.
Among the current EDID management function, the video EDID mode of video data and the audio EDID mode of audio data all are set up by same EDID switch, consequently video EDID mode and audio EDID mode either all adopt fixed mode, or all adopt the copy mode, lead to the combination between video EDID information and the audio EDID information all fixed, produce the problem that a plurality of display device probably can't be compatible video data and audio data simultaneously, product compatibility is lower, simultaneously can't satisfy user's diversified demand.
SUMMERY OF THE UTILITY MODEL
In order to solve the not enough of above-mentioned prior art, the utility model provides a EDID management device can separate the setting to video EDID mode and audio frequency EDID mode, has improved the compatibility of product, has satisfied user's different demands.
The utility model also provides an audio and video transmission device.
The utility model discloses the technical problem that will solve realizes through following technical scheme:
an EDID management device with audio and video separation comprises a video EDID switch, an audio and video input port, an audio and video output port and a management module, wherein the management module is used for controlling the audio and video input port and the audio and video output port to be in communication with each other
The video EDID switch is used for setting a video EDID mode of video data;
the audio EDID switch is used for setting an audio EDID mode of audio data;
the audio/video input port is used for inputting audio/video data and outputting video EDID information and audio EDID information;
the audio/video output port is used for outputting audio/video data;
the management module is used for providing corresponding video EDID information and audio EDID information for the audio and video input port and providing input audio and video data for the audio and video output port according to the set video EDID mode and audio EDID mode, the input end of the management module is in communication connection with the video EDID switch, the audio EDID switch and the audio and video input port, and the output end of the management module is in communication connection with the audio and video output port.
Further, the management module comprises an MCU micro control chip and an audio and video processing chip, wherein
The MCU micro-control chip is used for providing corresponding video EDID information and audio EDID information to the audio and video processing chip according to the set video EDID mode and audio EDID mode, the input end of the MCU micro-control chip is in communication connection with the video EDID switch and the audio EDID switch, and the output end of the MCU micro-control chip is in communication connection with the audio and video processing chip;
the audio and video processing chip is used for providing the audio and video data input by the audio and video input port to the audio and video output port for output, providing the video EDID information and the audio EDID information provided by the MCU micro control chip to the audio and video input port, and the input end of the audio and video processing chip is in communication connection with the audio and video input port and the MCU micro control chip, and the output end of the audio and video processing chip is in communication connection with the audio and video output port.
Further, the management module is a video EDID management chip, wherein
The video EDID management chip is used for decoding the switch signal output by the video EDID switch to obtain a corresponding video EDID mode;
the video EDID switch is in communication connection with the MCU micro-control chip through the video EDID management chip.
Further, the management module further comprises an audio EDID management chip, wherein
The audio EDID management chip is used for decoding the switch signal output by the audio EDID switch to obtain a corresponding audio EDID mode;
the audio EDID switch is in communication connection with the MCU micro-control chip through the audio EDID management chip.
Further, the audio/video input port is an HDMI port.
Further, the audio/video output port is an HDMI port or an HDBT port.
Further, the audio and video processing chip is a switching chip, a distribution chip or a sending chip.
An audio and video transmission device comprises the EDID management device arranged in the audio and video separation mode.
Further, the audio/video transmission device is a distributor, an extender or a switcher.
The utility model discloses following beneficial effect has: the EDID management device can be used for separating and setting a video EDID mode and an audio EDID mode, a user sets the video EDID mode through the video EDID switch, sets the audio EDID mode through the audio EDID switch, then the management module enables corresponding video EDID information and corresponding audio EDID information to be provided to signal source equipment connected with the audio and video input port through the audio and video input port, the video EDID mode and the audio EDID mode can be freely combined, combination between the video EDID information and the audio EDID information is more diversified, product compatibility is improved, and different requirements of the user are met.
Drawings
Fig. 1 is a schematic block diagram of an EDID management apparatus provided by the present invention;
fig. 2 is a schematic block diagram of another EDID management device provided by the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Example one
As shown in fig. 1 and 2, an EDID management device with audio-video separation comprises a video EDID switch, an audio-video input port, an audio-video output port and a management module, wherein the video EDID switch, the audio-video input port, the audio-video output port and the management module are arranged in a video-audio separation manner, and the management module is arranged
The video EDID switch is used for setting a video EDID mode of video data;
the audio EDID switch is used for setting an audio EDID mode of audio data;
the audio/video input port is used for inputting audio/video data and outputting video EDID information and audio EDID information;
the audio/video output port is used for outputting audio/video data;
the management module is used for providing corresponding video EDID information and audio EDID information for the audio and video input port and providing input audio and video data for the audio and video output port according to the set video EDID mode and audio EDID mode, the input end of the management module is in communication connection with the video EDID switch, the audio EDID switch and the audio and video input port, and the output end of the management module is in communication connection with the audio and video output port.
The EDID management device can be used for separating and setting a video EDID mode and an audio EDID mode, a user sets the video EDID mode through the video EDID switch, sets the audio EDID mode through the audio EDID switch, then the management module enables corresponding video EDID information and corresponding audio EDID information to be provided to signal source equipment connected with the audio and video input port through the audio and video input port, the video EDID mode and the audio EDID mode can be freely combined, combination between the video EDID information and the audio EDID information is more diversified, product compatibility is improved, and different requirements of the user are met.
Specifically, the video EDID mode in which the user sets the EDID management device through the video EDID switch includes: and a fixed mode for providing the built-in video EDID information to the signal source device, wherein the built-in video EDID information comprises: 4K @60Hz HDR, 4K @60Hz 4:2:0 SDR, 4K @30Hz HDR, 4K @30Hz SDR, 1080P HDR, 1080P SDR and the like; and the copy mode is used for providing the video EDID information of certain display equipment connected with the audio/video output port to the signal source equipment. The setting of the audio EDID mode of the EDID management device by the user through the audio EDID switch includes: and a fixed mode for providing the built-in certain audio EDID information to the signal source equipment, wherein the built-in audio EDID information comprises: 2ch (PCM), 5.1ch (PCM), Dolby Digital, 7.1ch (PCM), Dolby true HD, etc.; and the copy mode is used for providing the audio EDID information of certain display equipment connected with the audio and video output port to the signal source equipment.
The management module comprises an MCU micro control chip and an audio and video processing chip, wherein
The MCU micro-control chip is used for providing corresponding video EDID information and audio EDID information to the audio and video processing chip according to the set video EDID mode and audio EDID mode, the input end of the MCU micro-control chip is in communication connection with the video EDID switch and the audio EDID switch, and the output end of the MCU micro-control chip is in communication connection with the audio and video processing chip;
the audio and video processing chip is used for providing the audio and video data input by the audio and video input port to the audio and video output port for output, providing the video EDID information and the audio EDID information provided by the MCU micro control chip to the audio and video input port, and the input end of the audio and video processing chip is in communication connection with the audio and video input port and the MCU micro control chip, and the output end of the audio and video processing chip is in communication connection with the audio and video output port.
The embedded video EDID information and audio EDID information are both stored in the MCU micro-control chip; the MCU micro-control chip is also used for controlling the audio and video processing chip to copy the video EDID information and/or the audio EDID information of a certain display device through the audio and video output port in a copy mode.
In the embodiment shown in fig. 1, the MCU micro-control chip is directly in communication connection with the video EDID switch and the audio EDID switch to decode the switch signals output by the video EDID switch and the audio EDID switch to obtain the corresponding video EDID mode and audio EDID mode, and then provides the corresponding video EDID information and audio EDID information to the audio/video input port through the audio/video processing chip.
In the embodiment shown in fig. 2, the management module further comprises a video EDID management chip and an audio EDID management chip, wherein
The video EDID management chip is used for decoding the switch signal output by the video EDID switch to obtain a corresponding video EDID mode;
the video EDID switch is in communication connection with the MCU micro-control chip through the video EDID management chip;
the audio EDID management chip is used for decoding the switch signal output by the audio EDID switch to obtain a corresponding audio EDID mode;
the audio EDID switch is in communication connection with the MCU micro-control chip through the audio EDID management chip.
The audio/video input port may be but not limited to an HDMI port, the audio/video output port may be but not limited to an HDMI port or an HDBT port, and the video EDID switch and the audio EDID switch may be but not limited to a dial switch or a rotary switch.
If this EDID management device is applied to in the switch, then the quantity of audio and video input port has a plurality ofly, audio and video processing chip is the switching chip, the quantity of audio and video output port has one or more, and is the HDMI port, if this EDID management device is applied to in the distributor, then the quantity of audio and video input port has one, audio and video processing chip is the distribution chip, the quantity of audio and video output port has a plurality ofly, and is the HDMI port, if this EDID management device is applied to in the extender, then the quantity of audio and video input port has one, audio and video processing chip is for sending the chip, the quantity of audio and video output port has one, and is the HDBT port.
Example two
An audio/video transmission device includes the EDID management device according to the first embodiment.
The audio-video transmission device can be, but is not limited to, a distributor, an extender or a switcher.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is specific and detailed, but the invention can not be understood as the limitation of the patent scope of the present invention, but all the technical solutions obtained by adopting the equivalent substitution or equivalent transformation should fall within the protection scope of the present invention.
Claims (9)
1. The EDID management device is characterized by comprising a video EDID switch, an audio input port, an audio output port and a management module, wherein the video EDID switch, the audio input port, the audio output port and the audio output port are arranged in a separated mode
The video EDID switch is used for setting a video EDID mode of video data;
the audio EDID switch is used for setting an audio EDID mode of audio data;
the audio/video input port is used for inputting audio/video data and outputting video EDID information and audio EDID information;
the audio/video output port is used for outputting audio/video data;
the management module is used for providing corresponding video EDID information and audio EDID information for the audio and video input port and providing input audio and video data for the audio and video output port according to the set video EDID mode and audio EDID mode, the input end of the management module is in communication connection with the video EDID switch, the audio EDID switch and the audio and video input port, and the output end of the management module is in communication connection with the audio and video output port.
2. The EDID management device according to claim 1, wherein the management module includes an MCU micro-controller chip and an audio/video processing chip, wherein the management module further includes an MCU micro-controller chip and an audio/video processing chip
The MCU micro-control chip is used for providing corresponding video EDID information and audio EDID information to the audio and video processing chip according to the set video EDID mode and audio EDID mode, the input end of the MCU micro-control chip is in communication connection with the video EDID switch and the audio EDID switch, and the output end of the MCU micro-control chip is in communication connection with the audio and video processing chip;
the audio and video processing chip is used for providing the audio and video data input by the audio and video input port to the audio and video output port for output, providing the video EDID information and the audio EDID information provided by the MCU micro control chip to the audio and video input port, and the input end of the audio and video processing chip is in communication connection with the audio and video input port and the MCU micro control chip, and the output end of the audio and video processing chip is in communication connection with the audio and video output port.
3. The EDID management device of claim 2, wherein the management module video EDID management chip, wherein
The video EDID management chip is used for decoding the switch signal output by the video EDID switch to obtain a corresponding video EDID mode;
the video EDID switch is in communication connection with the MCU micro-control chip through the video EDID management chip.
4. The EDID management device of audio-video separation arrangement according to claim 2 or 3, wherein the management module further comprises an audio EDID management chip, wherein
The audio EDID management chip is used for decoding the switch signal output by the audio EDID switch to obtain a corresponding audio EDID mode;
the audio EDID switch is in communication connection with the MCU micro-control chip through the audio EDID management chip.
5. The EDID management device according to claim 2, wherein the audio/video processing chip is a switching chip, a distribution chip, or a transmission chip.
6. The EDID management device according to claim 1, wherein the audio/video input port is an HDMI port.
7. The EDID management device according to claim 1, wherein the audio/video output port is an HDMI port or an HDBT port.
8. An audio-visual transmission apparatus comprising the EDID management apparatus of an audio-visual separation arrangement as claimed in any one of claims 1 to 7.
9. Audio-video transmission device according to claim 8, characterized in that it is a distributor, extender or switcher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921543452.9U CN210431620U (en) | 2019-09-17 | 2019-09-17 | EDID management device and audio-video transmission device that audio-video separation set up |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921543452.9U CN210431620U (en) | 2019-09-17 | 2019-09-17 | EDID management device and audio-video transmission device that audio-video separation set up |
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| Publication Number | Publication Date |
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| CN210431620U true CN210431620U (en) | 2020-04-28 |
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| CN201921543452.9U Active CN210431620U (en) | 2019-09-17 | 2019-09-17 | EDID management device and audio-video transmission device that audio-video separation set up |
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Address after: 3-4 / F, building 16, Hejing Industrial Zone, No.87 Hexiu West Road, Heping community, Fuhai street, Bao'an District, Shenzhen, Guangdong 518100 Patentee after: Shenzhen Bachao Technology Co.,Ltd. Address before: 3-4 / F, building 16, Hejing Industrial Zone, No.87 Hexiu West Road, Heping community, Fuhai street, Bao'an District, Shenzhen, Guangdong 518100 Patentee before: SHENZHEN BACHAO TECHNOLOGY Co.,Ltd. |
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Address after: 518103 301-401, building 16, Hejing Industrial Zone, No. 87, Hexiu West Road, Zhancheng community, Fuhai street, Bao'an District, Shenzhen, Guangdong Province Patentee after: Shenzhen Bachao Technology Co.,Ltd. Address before: 3-4 / F, building 16, Hejing Industrial Zone, No.87 Hexiu West Road, Heping community, Fuhai street, Bao'an District, Shenzhen, Guangdong 518100 Patentee before: Shenzhen Bachao Technology Co.,Ltd. |
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