Invention Grant
US06651252B1 Method and apparatus for transmitting video and graphics in a compressed form
有权
用于以压缩形式传输视频和图形的方法和装置
- Patent Title: Method and apparatus for transmitting video and graphics in a compressed form
- Patent Title (中): 用于以压缩形式传输视频和图形的方法和装置
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Application No.: US09428066Application Date: 1999-10-27
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Publication No.: US06651252B1Publication Date: 2003-11-18
- Inventor: Donald F. Gordon , Sadik Bayrakeri , Jeremy S. Edmonds , Edward A. Ludvig , John Comito , Eugene Gershtein
- Applicant: Donald F. Gordon , Sadik Bayrakeri , Jeremy S. Edmonds , Edward A. Ludvig , John Comito , Eugene Gershtein
- Main IPC: H04N5445
- IPC: H04N5445

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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