Method and apparatus for transmitting video and graphics in a compressed form
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Nov 18, 2003
Grant Date -
N/A
app pub date -
Oct 27, 1999
filing date -
Oct 27, 1999
priority date (Note) -
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Abstract
A method and apparatus for compressing and transmitting both video and graphics portions of an interactive program guide (IPG). For an IPG that comprises a graphics portion and at least one video portion, the inventive system separately encodes the video portion and the graphics portion. The video portion is slice-base encoded using a predictive encoder, e.g., an MPEG encoder, that produces a bitstream comprising intra-coded picture slices and predictive-coded picture slices. The graphics portion is separately slice-base encoded to produce encoded slices of the graphics image. The encoded slices of the graphics portion can be stored in a database and recalled as needed for transmission. To transmit an IPG, a transport stream is created containing the intra-coded and predicted picture streams as well as the encoded slices that comprise a graphics image that is to be included in the IPG. The receiver reassembles the components of the IPG into a comprehensive IPG.
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