System for transmission of synchronous video with compression through channels with varying transmission delay
AssigneeQformX
InventorsVictor Ramamoorthy, B. Kumar, Paul Lessard
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Abstract
The present invention overcomes limitations of conventional synchronous signal transmission systems. The present invention provides apparent low latency synchronous signal transmission between devices, even if the transmission channel has impairments, and, allows for asynchronous transmission of signals between a transmitters and receivers that are located between the devices. Compression is preferably used for reducing the bandwidth of the transmitted data which results in asynchronous transmission of signals between a transmitter and a receiver.
Claims29
A method of providing a video sequence to a display device comprising the steps of:
- at a source,
- converting a synchronous video signal containing a plurality of frames of video data and a plurality of time-based synchronization control signals associated therewith into video data and a header including time-based video signal parameter information using a plurality of sequential packets;
- asynchronously transmitting each of the plurality of sequential packets in sequence from the source to a destination with substantially reduced bandwidth through channels with smaller capacity than that normally used for the intended video transmission;
- at the destination,
- receiving each of the plurality of sequential packets in the sequence;
- obtaining a reconstructed synchronous video signal using the time-based video signal parameter information and the video data, the reconstructed synchronous video signal including substantially visually similar reconstructed video data that is substantially visually similar to the video data and reconstructed vertical and horizontal synchronization control signals that are substantially identical to the plurality of synchronization control signals;
- and
- synchronously outputting the video sequence to the display device at the predetermined frame rate, the video sequence including the reconstructed synchronous video signal.
Dependencies are inferred from the claim text.