Digital video/audio capture device and method thereof
AssigneeQuanta Computers Inc.
InventorsYu-Min Chen, Chun-Chiao Wang
Life of this patent
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Abstract
In audio/video (AV) capture, two video streaming adapters (VSAs) receive an original input video signal and a compressed input video signal respectively to generate an uncompressed video streaming and a compressed video streaming respectively. The uncompressed video streaming and the compressed video streaming are transmitted to an external device by way of time division duplex. An interlock mechanism prevents concurrent transmission of the uncompressed video streaming and the compressed video streaming, so that the loss of real-time video streaming is reduced.
Claims19
An audio/video (AV) capture device, comprising:
- a signal source, capturing an external image to generate a first input video signal;
- an AV processor, receiving and compressing the first input video signal generated by the signal source to generate a second input video signal;
- a first video streaming adapter (VSA), receiving the first input video signal generated by the signal source and adding a first payload header onto the first input video signal to generate a first video streaming;
- a second video streaming adapter (VSA), receiving the second input video signal generated by the AV processor and adding a second payload header onto the second input video signal to generate a second video streaming;
- a micro controller, generating a command to the first and the second VSA;
- and
- a transmission unit coupled to the first VSA and the second VSA, transmitting the first video streaming generated by the first VSA and the second video streaming generated by the second VSA to an external device by time division duplex;
- wherein the first VSA and the second VSA communicate with each other through an interlock mechanism, to avoid the first VSA and the second VSA concurrently outputting the first video streaming and the second video streaming to the transmission unit.
A digital audio/video (AV) capture method comprising:
- capturing an external image to generate a first input video signal;
- receiving and compressing the first input video signal to generate a second input video signal;
- receiving the first input video signal and adding a first payload header onto the first input video signal to generate a first video streaming by a first video streaming adapter (VSA);
- receiving the second input video signal and adding a second payload header onto the second input video signal to generate a second video streaming by a second video streaming adapter (VSA);
- transmitting the first video streaming and the second video streaming to an external device by way of time division duplex;
- and
- communicating the first VSA and the second VSA with each other through an interlock mechanism to avoid concurrently transmitting the first and the second video streaming to the external device during time division duplex transfer.
Dependencies are inferred from the claim text.