CN209949313U - Signal transmission system, signal encoding device, and signal decoding device - Google Patents
Signal transmission system, signal encoding device, and signal decoding device Download PDFInfo
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Abstract
The utility model relates to a network communication technology field discloses a signal transmission system, signal coding device and decoding device, and this signal transmission system includes: signal encoding means and signal decoding means; the signal encoding device comprises a signal distributor and signal encoders, and the signal distributor is respectively connected with the N signal encoders; the signal distributor is used for dividing an input signal into N signals and distributing the N signals to the N signal encoders; the signal encoder is used for encoding the N signals by adopting N encoding protocols and outputting the encoded signals; and the signal decoding device is used for receiving the coded signals and decoding the signals by adopting at least one decoding protocol. The utility model discloses embodiment provides a signal transmission system, signal coding device and decoding device can improve signal transmission system's efficiency of buildding and adaptability.
Description
Technical Field
The utility model relates to a network communication technical field, in particular to signal transmission system, signal coding device and decoding device.
Background
Currently, in a signal transmission system, for example, an audio/video signal transmission system, there are two general ways: conventional signal processing systems and distributed signal processing systems.
However, the conventional signal processing system requires a special extender for transmission, a special matrix for switching, a special processor for processing, and the like, so that the conventional signal processing system is complex in composition and complicated in construction process. The distributed signal processing system is simple in composition, but if a device newly connected into the distributed signal processing system is different from the encoding or decoding protocol of the system, an additional transcoding device needs to be additionally connected, and the connection process is complex.
In summary, the existing signal transmission system is low in building efficiency and poor in adaptability.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a signal transmission system, signal coding device and decoding device improve signal transmission system's efficiency of buildding and adaptability.
In order to solve the above technical problem, an embodiment of the present invention provides a signal transmission system, including a signal encoding device and a signal decoding device; the system comprises N signal encoders and N signal distributors, wherein the N signal encoders are connected with the N signal encoders respectively; the signal distributor is used for dividing an input signal into N signals, distributing the N signals to N signal encoders, and distributing each signal to one signal encoder; the signal encoder is used for encoding N signals by adopting N encoding protocols, each signal encoder encodes one signal by adopting one encoding protocol and outputs the encoded signal, wherein N is a positive integer greater than 1; and the signal decoding device is used for receiving the coded signals and decoding the coded signals by adopting at least one decoding protocol.
The utility model discloses an embodiment still provides a signal coding device, include: the signal receiver is connected with the signal encoder; a signal receiver for receiving an input signal; a signal encoder for encoding an input signal using at least two encoding protocols.
The utility model discloses an embodiment still provides a signal decoding device, include: the signal receiver is connected with the signal decoder; the signal receiver is used for receiving an input signal, and the signal is a signal coded by adopting at least one coding protocol; and a signal decoder for decoding the input signal by using at least one decoding protocol, wherein the decoding protocols are at least two.
The utility model discloses embodiment carries out the code of two kind at least code agreement to the signal of input for prior art through signal coding device, carries out decoding of one kind at least decoding agreement through the signal decoding device to the signal after the code, makes signal transmission system can adapt to multiple application scene, and new equipment can the direct access signal transmission system, does not need extra transcoding equipment, builds simply, efficiency is higher, has improved signal transmission system's adaptability. In addition, for the coding and decoding protocol which can not realize soft decoding, other signals which can be soft decoded can be formed, so that the signals which can not realize soft decoding can realize picture preview or playback on the terminal equipment, and the operation of a user is convenient.
In addition, the signal encoder is used for respectively encoding the N signals by adopting N encoding protocols; the signal decoding device comprises a signal decoder and a signal output device, wherein the signal decoder is connected with the signal output device, and at least one signal decoder is arranged; the signal decoder is used for decoding the signal by adopting at least one decoding protocol and outputting the signal to the signal output device, and each signal decoder decodes the signal by adopting one decoding protocol; and the signal output device is used for acquiring and outputting the signal decoded by the at least one signal decoder. Through the signal output device, one or more of a plurality of decoded signals of the signal decoder can be selected and output, so that the signal transmission system can be built according to the needs of users, and the building efficiency is improved.
In addition, the number of the encoding protocols is N, wherein N is a positive integer greater than 1; the signal encoder comprises N signal distributors and N sub-signal encoders, and the signal distributors are respectively connected with the N sub-signal encoders; the signal distributor is used for dividing an input signal into N signals, distributing the N signals to N sub-signal encoders, and distributing each signal to one sub-signal encoder; and the sub-signal encoders are used for encoding the N signals by adopting N encoding protocols, and each sub-signal encoder encodes one signal by adopting one encoding protocol. Through the signal distributor, the input signal can be divided into a plurality of signals, so that a plurality of signal encoders are adopted to encode various encoding protocols, and the signal transmission system can be suitable for various application scenes and is easy to build.
In addition, the signal decoder comprises at least two sub-signal decoders and signal output devices, and the sub-signal decoders are respectively connected with the signal output devices; the sub-signal decoder is used for decoding the input signal by adopting at least one decoding protocol and outputting the decoded signal to the signal output device, and each sub-signal decoder decodes the input signal by adopting one decoding protocol; and the signal output device is used for acquiring and outputting the signal decoded by the at least one signal decoder. Through the signal output device, one or more of a plurality of decoded signals of the signal decoder can be selected and output, so that the signal transmission system can be built according to the needs of users, and the building efficiency is improved.
Drawings
One or more embodiments are illustrated by the corresponding figures in the drawings, which are not meant to be limiting.
Fig. 1 is a schematic structural diagram of a signal transmission system according to a first embodiment of the present invention;
fig. 2 is a schematic block diagram of a conventional audio-video signal transmission system;
fig. 3 is a schematic block diagram of a conventional distributed audio-video signal transmission system;
fig. 4 is a schematic block diagram of a signal transmission system applied to audio/video signal transmission according to a first embodiment of the present invention;
fig. 5 is another schematic structural diagram of a signal transmission system according to the first embodiment of the present invention;
fig. 6 is a schematic structural view of a signal encoding device according to a fourth embodiment of the present invention;
fig. 7 is another schematic structural diagram of a signal encoding device according to a fourth embodiment of the present invention;
fig. 8 is a schematic diagram of a signal encoding apparatus according to a fourth embodiment of the present invention;
fig. 9 is a schematic configuration diagram of a signal decoding apparatus according to a fifth embodiment of the present invention;
fig. 10 is another schematic configuration diagram of a signal decoding apparatus according to a fifth embodiment of the present invention;
fig. 11 is a schematic diagram of a signal decoding apparatus according to a fifth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
A first embodiment of the present invention relates to a signal transmission system, and in this embodiment, the signal transmission system includes a signal encoding device and a signal decoding device; the signal encoding device comprises N signal encoders and N signal distributors, wherein the N signal encoders are connected with the N signal encoders respectively; the signal distributor is used for dividing an input signal into N signals, distributing the N signals to N signal encoders, and distributing each signal to one signal encoder; the signal encoder is used for encoding N signals by adopting N encoding protocols, each signal encoder encodes one signal by adopting one encoding protocol and outputs the encoded signal, wherein N is a positive integer greater than 1; the signal decoding device is used for receiving the coded signal and decoding the signal by adopting at least one decoding protocol. The encoding end encodes the input signal by at least two encoding protocols, and the decoding end decodes by at least one decoding protocol, and the new equipment is accessed without an additional transcoding box, so that the composition is simpler, the signal transmission system can adapt to various application scenes, and the applicability and the construction efficiency of the signal transmission system are improved.
As shown in fig. 1, the signal transmission system according to the present embodiment includes: signal encoding apparatus 10 and signal decoding apparatus 20. The signal encoding device 10 includes signal distributors 101 and signal encoders 102, where N signal encoders 102 are provided, and the signal distributors 101 are respectively connected to the N signal encoders 102.
A signal distributor 101, configured to divide an input signal into N signals, distribute the N signals to N signal encoders 102, and distribute each signal to one signal encoder 102;
a signal encoder 102, configured to encode N signals respectively using N encoding protocols, where each signal encoder encodes one signal using one encoding protocol and outputs the encoded signal;
and a signal decoding device 20, configured to receive the encoded signal and decode the signal by using at least one decoding protocol.
The input signal is a signal that is not encoded. The encoding protocol may be, but is not limited to: h.264 encoding protocol, h.265 encoding protocol, JPEG2000 encoding protocol, SDVOE encoding protocol, M-JPEG encoding protocol, other public or proprietary encoding protocols.
Alternatively, after encoding, the signal encoding apparatus 10 may directly transmit to the signal decoding apparatus 20 through a common line (e.g., a cable, an optical fiber line, etc.), or may first transmit the encoded signals to the network, and the signal decoding apparatus 20 receives the encoded signals from the network.
Specifically, the signal distributor 101 may divide an input signal into two or more identical signals. After dividing the input signal into N signals, the signal distributor 101 distributes the N signals to N signal encoders 102, and each signal is distributed to one signal encoder 102, where the number of the signal encoders 102 is N, each signal encoder 102 encodes by using one encoding protocol, and the N signal encoders 102 encode the N signals, respectively.
The decoding protocol corresponds to at least one of the encoding protocols, which may be, but is not limited to: h.264 decoding protocol, H.265 decoding protocol, JPEG2000 decoding protocol, SDVOE decoding protocol, M-JPEG decoding protocol, other public or proprietary decoding protocols. It should be understood that the signal decoding device 20 may include a plurality of decoding protocols, but at least one of the decoding protocols may be used to decode the received signal according to actual needs. Alternatively, the signal decoding apparatus 20 may decode the received signal through at least one decoder, or may integrate a plurality of decoding protocols into one decoder, and decode the received signal through the integrated decoder through at least one decoding protocol. After decoding the received signal, the signal decoding apparatus 20 outputs the decoded signal to a display device (e.g., a display).
The following is illustrated by a specific application scenario:
referring to fig. 2, it is a schematic block diagram of a conventional audio/video signal transmission system, and it can be seen from the diagram that an extender, a matrix switcher, and a processor are required for audio/video signal transmission, which is relatively complex in composition, and the process of system construction is tedious.
Please refer to fig. 3, which is a schematic block diagram of a conventional distributed audio/video signal transmission system, wherein the distributed audio/video signal transmission system performs core interaction through a network switch, and an encoder encodes a signal according to a certain encoding protocol and then transmits the signal to the switch according to the network protocol; the decoder receives the signals from the exchanger, decodes the signals according to the corresponding decoding protocol and outputs the decoded signals to the display equipment. Although the distributed audio and video signal transmission system is simpler in composition, if the encoding or decoding protocols of the new device and the system are different, the new device can be accessed into the system only by additional transcoding devices (such as transcoding boxes), the access process is also complex, and the adaptability is poor. For example, when the webcam is accessed to the distributed audio/video signal transmission system with the encoding and decoding protocol being JPEG2000, a special transcoding box needs to be equipped, wherein the transcoding box firstly decodes the signal of the webcam by the h.264/265 decoding protocol and then encodes the signal by the JPEG2000 encoding protocol. In addition, when the protocol of the distributed audio/video signal transmission system is an encoding and decoding protocol such as SDVOE, the output signal cannot be soft decoded in the terminal device (such as a computer, a mobile phone or a notebook), so that the terminal device cannot preview or display the picture, and the operation of the user is inconvenient.
Please refer to fig. 4, which is a schematic block diagram of the signal transmission system in audio/video signal transmission application according to the present embodiment. The signal encoding device 10 is an encoder that performs mixed encoding of a multi-stream output, such as the encoder 1 and the encoder 2 shown in the figure. Alternatively, the signal encoding apparatus 10 may include an encoder for hybrid encoding a multi-stream output and an encoder for a single-stream encoded output as shown in the figure. The signal decoding device 20 is a decoder that performs mixed decoding output, such as the decoder 1 and the decoder 2 shown in the figure. Alternatively, the signal decoding module 20 may include a decoder for hybrid decoding output and a decoder for single stream decoding output as shown in the figure. When the signal of the signal source 1 enters the encoder 1, the encoder 1 encodes the signal of the signal source 1 by adopting at least two encoding protocols to form a multi-stream and outputs the multi-stream to the switch. The decoder 1 may receive the multi-stream audio/video signal transmitted by the switch, decode the multi-stream audio/video signal, and output the decoded multi-stream audio/video signal to the display device 1. The signal of signal source 2 is processed in the same way as the signal of signal source 1. The signal of the signal source 3 may be processed by a conventional single codec and then output to the display device 3. It can be understood that the number of the encoders for outputting the mixed encoded multi-stream and the encoders for outputting the single-stream encoded at the encoding end may be set according to actual needs, and the decoder for outputting the mixed decoded output at the decoding end and the decoder for outputting the single-stream decoded output may be correspondingly set at the encoding end. Because the new equipment can be directly accessed into the mixed encoder of the signal encoding device when being accessed into the system, and no additional transcoding equipment is needed, the system can adapt to various application scenes, and is simple to build and high in efficiency. In addition, audio and video signals of coding and decoding protocols such as SDVOE can form signals of other protocols (such as H.264/265 coding and decoding protocols), so that soft decoding can be realized on terminal equipment, picture preview or playback of the audio and video signals can be realized, and operation of a user is facilitated.
Compared with the prior art, the signal coding device is used for coding the input signal by at least two coding protocols, the signal decoding device is used for decoding the coded signal by at least one decoding protocol, so that the signal transmission system can adapt to various application scenes, new equipment can be directly accessed into the signal transmission system, additional transcoding equipment is not needed, the construction is simple, the efficiency is high, and the adaptability of the signal transmission system is improved. In addition, for the coding and decoding protocol which can not realize soft decoding, other signals which can be soft decoded can be formed, so that the signals which can not realize soft decoding can realize picture preview or playback on the terminal equipment, and the operation of a user is convenient.
In a specific example, as shown in fig. 5, the signal transmission system includes a signal encoding apparatus 10 and a signal decoding apparatus 20, the signal decoding apparatus 20 includes a signal decoder 201 and a signal output device 202, wherein the signal decoder 201 is connected to the signal output device 202, and at least one of the signal decoders 201 is provided.
The signal decoder 201 is configured to decode the signal by using at least one decoding protocol and output the signal to the signal output unit 202, and each signal decoder 201 decodes the signal by using one decoding protocol;
a signal output unit 202 for obtaining and outputting the signal decoded by the at least one signal decoder 201.
At least one signal decoder 201, each signal decoder 201 using a decoding protocol. The number of the signal decoders 201 can be set according to actual needs, and is not particularly limited herein. Alternatively, the signal output 202 may be a signal selector or a signal processor, wherein the signal selector is also called a signal switch. All the signal decoders 201 can output a plurality of decoded signals, and the signal outputter 202 can be configured according to actual needs, and acquire and output the signals decoded by at least one signal decoder 201.
Through the signal output device, one or more of a plurality of decoded signals of the signal decoder can be selected and output, so that the signal transmission system can be built according to the needs of users, and the building efficiency is improved.
A second embodiment of the present invention relates to a signal encoding device, as shown in fig. 6, including: the signal receiver 501 is connected with the signal encoder 502, and the signal receiver 501 is connected with the signal encoder 502.
A signal receiver 501 for receiving an input signal;
a signal encoder 502 for encoding an input signal using at least two encoding protocols.
Specifically, the signal receiver 501 accesses an externally input signal, and then the signal encoder 502 encodes the input signal using at least two encoding protocols. The encoding protocol may be, but is not limited to, the H.264 encoding protocol, the H.265 encoding protocol, the JPEG2000 encoding protocol, the SDVOE encoding protocol, the M-JPEG encoding protocol, other public or proprietary encoding protocols. After encoding, the signal encoder 502 transmits the encoded signal to a network or directly to a decoding end through a line (e.g., a cable, a fiber optic line, etc.). Optionally, the signal encoder 502 integrates more than two encoding protocols, such that encoding of at least more than two encoding protocols may be implemented.
Compared with the prior art, the embodiment encodes the input signal by more than two encoding protocols, so that the encoded signal can adapt to different decoders, and the convenience of signal transmission is improved; by constructing a signal transmission system by using the signal encoding device provided by the embodiment, the adaptability and the construction efficiency of the signal transmission system can be improved.
Optionally, the number of the encoding protocols is N, where N is a positive integer greater than 1; as shown in fig. 7, the signal encoder 502 includes a signal distributor 5021 and sub-signal encoders 5022, where N sub-signal encoders 5022 are provided, and the signal distributor 5021 is connected to the N sub-signal encoders 5022;
a signal distributor 5021 for dividing an input signal into N signals, distributing the N signals to N sub-signal encoders 5022, each signal being distributed to one sub-signal encoder 5022;
the sub-signal encoder 5022 is configured to encode the N signals using N encoding protocols, respectively, and each sub-signal encoder 5022 encodes one signal using one encoding protocol.
Optionally, the signal encoding apparatus may further include a network switch, wherein the network switch is configured to transmit the encoded signal to the network switch so as to be output to the network.
Specifically, after receiving the input signal, the signal distributor 5021 first divides the input signal into N signals, and then distributes the N signals to N sub-signal encoders 5022, and one signal is distributed to one sub-signal encoder 5022. The sub-signal encoder 5022 encodes N signals using N encoding protocols, respectively, and each sub-signal encoder 5022 encodes one signal using one encoding protocol. Wherein N is a positive integer greater than 1. After the encoding, the signal encoding apparatus outputs the encoded signal.
Please refer to fig. 8, which is a schematic diagram of a signal encoding apparatus. The signal distributor 5021 is used for dividing an input signal source into N signals; the sub-signal encoder 5022 comprises an a encoding protocol device and a B encoding protocol device, and the like, and the sub-signal encoder 5022 encodes N signals using N encoding protocols, and each encoding protocol device encodes one signal using one encoding protocol. After encoding, the network switch transmits the encoded signal to the network switch. The signal receiver 501 is not shown in the figure, and alternatively, the signal receiver 501 may be served by a signal distributor 5021 (signal distributor); alternatively, the signal receiver 501 may be connected to the signal distributor 5021.
Through the signal distributor, the input signal can be divided into a plurality of signals, so that a plurality of signal encoders are adopted to encode various encoding protocols, and the signal transmission system can be suitable for various application scenes and is easy to build.
The third embodiment of the present invention relates to a signal decoding device, as shown in fig. 9, including: a signal receiver 601 and a signal decoder 602, wherein the signal receiver 601 is connected with the signal decoder 602.
A signal receiver 601, configured to receive an input signal, where the signal is encoded by using at least one encoding protocol;
a signal decoder 602, configured to decode a signal using at least one decoding protocol, where the decoding protocol is at least two.
In this embodiment, the input signal is a signal encoded by using at least one encoding protocol, that is, the input signal may be a signal encoded by using multiple encoding protocols. The decoding protocol may be, but is not limited to: h.264 decoding protocol, H.265 decoding protocol, JPEG2000 decoding protocol, SDVOE decoding protocol, M-JPEG decoding protocol, other public or proprietary decoding protocols.
Optionally, the signal decoder 602 may integrate at least two decoding protocols together, so that decoding of at least more than two decoding protocols for the input signal may be achieved. It will be appreciated that of the two or more decoding protocols, one decoding protocol corresponds to the encoding protocol of the incoming signal. Since the signal decoder 602 may include a plurality of decoding protocols, a device that can output the encoded signal may be directly connected to a network switch, and the signal decoder 602 may also implement decoding output after acquiring the signal of the device. For example, a webcam can be directly connected to a network switch, and the signal decoder 602 can decode and output a signal of the webcam.
The signal decoder decodes the input signal by at least one decoding protocol, so that the signal decoder can adapt to different encoders, and the convenience of signal transmission is improved; by constructing a signal transmission system using such a signal decoding apparatus, the adaptability of the signal transmission system and the efficiency of construction can be improved.
Alternatively, as shown in fig. 10, the signal decoder 602 includes a sub-signal decoder 6021 and a signal outputter 6022, the sub-signal decoders 6021 being at least two, the sub-signal decoders 6021 being respectively connected to the signal outputters 6022;
a sub-signal decoder 6021 for decoding the signal by using at least one decoding protocol and outputting the decoded signal to the signal output 6022, wherein each sub-signal decoder 6021 decodes the input signal by using one decoding protocol;
a signal outputter 6022 for acquiring and outputting the signal decoded by the at least one sub-signal decoder 6021.
Wherein, since the decoding protocol is at least two, correspondingly, the sub-signal decoder 6021 is at least two.
Optionally, the signal decoding apparatus further includes a network switch, and the encoded input signal may be acquired from the network switch. Alternatively, the network switch may be served by the signal receiver 601.
Please refer to fig. 11, which is a schematic diagram of a signal decoding apparatus. Signal receiver 601 is not shown in the figure, and alternatively, signal receiver 601 is a network switch shown in the figure; alternatively, it may be a network switch followed by the signal receiver 601. The sub-signal decoder 6021 comprises an a decoding protocol device, a B decoding protocol device and the like; the signal output 6022 is a signal switch or signal processor in the figure. Specifically, the network switch receives an input signal from the network switch, and since the input signal may be a signal encoded by two or more encoding protocols, the signal may be decoded by two or more sub-signal decoders 6021 and output to a signal switcher or a signal processor, and the signal switcher or the signal processor acquires and outputs the signal decoded by at least one signal decoder 6021 to the display device.
After the input signals are decoded, at least one decoded signal is obtained and output, and the configuration can be carried out according to actual needs, so that the signal decoding device can adapt to different application scenes, and the adaptability of the signal decoding device to the application scenes is improved.
It will be understood by those skilled in the art that the foregoing embodiments are specific examples of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.
Claims (8)
1. A signal transmission system comprising signal encoding means and signal decoding means;
the signal encoding device comprises N signal encoders and N signal distributors, wherein the N signal encoders are respectively connected with the N signal encoders; the signal distributor is used for dividing an input signal into N signals, distributing the N signals to the N signal encoders, and distributing each signal to one signal encoder; the signal encoder is used for encoding the N signals by adopting N encoding protocols, each signal encoder adopts one encoding protocol to encode one signal and outputs the encoded signal, wherein N is a positive integer greater than 1;
the signal decoding device is configured to receive the encoded signal and decode the encoded signal using at least one decoding protocol.
2. The signal transmission system according to claim 1, wherein the signal decoding means includes a signal decoder and a signal outputter, the signal decoder being connected to the signal outputter, the signal decoder being at least one;
the signal decoder is used for decoding the signal by adopting at least one decoding protocol and outputting the decoded signal to the signal output device, and each signal decoder decodes the signal by adopting one decoding protocol;
and the signal output device is used for acquiring and outputting the signal decoded by the at least one signal decoder.
3. The signal transmission system of claim 2, wherein the signal output is a signal selector or a signal processor.
4. A signal encoding apparatus, comprising: the signal receiver is connected with the signal encoder;
the signal receiver is used for receiving an input signal;
the signal encoder is configured to encode the input signal using at least two encoding protocols.
5. The signal encoding apparatus of claim 4, wherein the number of the encoding protocols is N, where N is a positive integer greater than 1;
the signal encoder comprises N signal distributors and N sub-signal encoders, and the signal distributors are respectively connected with the N sub-signal encoders;
the signal distributor is configured to divide the input signal into N signals, distribute the N signals to the N sub-signal encoders, and distribute each signal to one of the sub-signal encoders;
the sub-signal encoder is configured to encode the N signals using the N encoding protocols, and each of the sub-signal encoders encodes one of the signals using one of the encoding protocols.
6. A signal decoding apparatus, comprising: the signal receiver is connected with the signal decoder;
the signal receiver is used for receiving an input signal, wherein the signal is a signal coded by adopting at least one coding protocol;
the signal decoder is used for decoding the input signal by adopting at least one decoding protocol, and the decoding protocols are at least two.
7. The signal decoding device according to claim 6, wherein the signal decoder comprises at least two sub-signal decoders and signal outputters, and the sub-signal decoders are respectively connected with the signal outputters;
the sub-signal decoders are configured to decode the input signal by using at least one decoding protocol and output the decoded signal to the signal output device, and each sub-signal decoder decodes the input signal by using one decoding protocol;
and the signal output device is used for acquiring and outputting the signal decoded by the at least one signal decoder.
8. The signal decoding apparatus of claim 7, wherein the signal output device is a signal selector or a signal processor.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110381320A (en) * | 2019-07-25 | 2019-10-25 | 深圳市玩视科技有限公司 | Signal transmission system, signal codec method and device |
| CN111491114A (en) * | 2020-05-22 | 2020-08-04 | 深圳市玩视科技有限公司 | Audio and video signal switching device and switching method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110381320A (en) * | 2019-07-25 | 2019-10-25 | 深圳市玩视科技有限公司 | Signal transmission system, signal codec method and device |
| CN111491114A (en) * | 2020-05-22 | 2020-08-04 | 深圳市玩视科技有限公司 | Audio and video signal switching device and switching method |
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