Digital visual interface with audio and auxiliary data
First Claim
1. A processing system for increasing the digital data capacity of a digital video communications link, comprising:
- at least one assembly device adapted to assemble a plurality of digital data streams into a single digital data stream;
a multiplexer adapted to multiplex the single digital data stream with a line of video data forming an aggregate digital data stream; and
at least one transmitter adapted to transmit said aggregate digital data stream and low bandwidth information, said low bandwidth information being transmitted during blanking periods associated with the aggregate digital data stream.
7 Assignments
0 Petitions
Accused Products
Abstract
One embodiment of the present invention uses an abbreviated blanking period, in comparison to the standard VESA and CEA-EIA blanking periods, in order to send data, including low bandwidth, non-timing information, over one or more channels of the digital video link. By shortening the blanking period, the amount of time available for sending data in each scan line is increased, enabling the system to send more data over each channel. The inactive video portion of a scan line sent during vertical sync may also be used to send additional digital data. Shortening the blanking periods and/or using the inactive video sections of the horizontal scan lines adds to the overall data capacity of the link and may be used to send other digital data, such as multi-channel audio, video, control, timing, closed captioning or other digital data.
33 Citations
27 Claims
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1. A processing system for increasing the digital data capacity of a digital video communications link, comprising:
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at least one assembly device adapted to assemble a plurality of digital data streams into a single digital data stream;
a multiplexer adapted to multiplex the single digital data stream with a line of video data forming an aggregate digital data stream; and
at least one transmitter adapted to transmit said aggregate digital data stream and low bandwidth information, said low bandwidth information being transmitted during blanking periods associated with the aggregate digital data stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for increasing a digital data capacity of a digital video communications link, said system comprising:
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means for accepting video data and audio data and combining said data into aggregate data that is compatible with a predetermined video timing standard; and
means for transmitting said aggregate data and low bandwidth information. - View Dependent Claims (10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21)
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16. A method for increasing the digital data capacity of a digital video communications link, comprising:
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decreasing the duration of a blanking interval associated with a line of video data to a duration less than industry standard blanking intervals;
combining a digital data stream with a line of video data; and
transmitting said digital data stream and low bandwidth information.
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22. A method for increasing the digital data capacity of a digital video communications link, said method comprising the steps of:
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receiving information transmitted at a first timing standard;
collecting sync timing information for said received information;
modifying said collected sync timing information;
transmitting said modified sync timing information with aggregate information and low bandwidth information;
receiving said sync timing information, said aggregate information and said low bandwidth information;
generating audio from said received aggregate information using at least said low bandwidth information;
outputting said audio as an audio stream;
reconstructing said first timing standard; and
outputting a video stream. - View Dependent Claims (23, 24, 25, 26, 27)
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Specification