H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/088 (2006.01) H04N 7/50 (2006.01) H04N 5/44 (2006.01) H04N 7/52 (2006.01)
Patent
CA 2179322
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.
Hoogenboom Chris
Moroney Paul
Nuber Ray
General Instrument Corporation Of Delaware
Ridout & Maybee Llp
LandOfFree
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