Bandwidth efficient communication of user data in digital televi

Details Bandwidth efficient communication of user data in digital televi Bandwidth efficient communication of user data in digital televi

1995-06-28

1997-12-16

Kostak, Victor R.

Television

Nonpictorial data packet in television format

Data separation or detection

348467, 3488452, 348478, H04N 7025, H04N 7087

Patent

active

056991240

ABSTRACT:
A method and apparatus are provided for communicating VBI user information for digital television. A syntax is provided which allows the transport of closed captions, non-realtime video, sampled video and AMOL. Non-realtime video can be used to transport various types of data, such as a vertical interval test signal (VITS) through the system at full resolution. The provision in the syntax of a count for each type of VBI user information enables the adjustment of a digital television data stream to accommodate variable amounts and types of such information without space being reserved in advance. The provision of a priority number in the syntax enables decoders to discard VBI user information priorities which are not supported by the particular decoder.

REFERENCES:
patent: 5289276 (1994-02-01), Siracusa et al.
patent: 5400401 (1995-03-01), Wasilewski et al.
patent: 5519780 (1996-05-01), Woo et al.
patent: 5526427 (1996-06-01), Thomas et al.

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