发明名称 |
METHOD AND APPARATUS FOR TRANSMITTING VIDEO AND GRAPHICS IN A COMPRESSED FORM |
摘要 |
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 (408), e.g., an MPEG encoder, that produces a bitstream comprising intra-coded picture slice s and predictive-coded picture slices. The graphics portion is separately slic e- base encoded using a guide encoder (416) to produce encoded slices of the graphics image. The encoded slices of the graphics portion can be stored in a database (418) 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 IP G into a comprehensive IPG.
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申请公布号 |
CA2388608(A1) |
申请公布日期 |
2001.05.03 |
申请号 |
CA20002388608 |
申请日期 |
2000.10.27 |
申请人 |
DIVA SYSTEMS CORPORATION |
发明人 |
EDMONDS, JEREMY S.;LUDVIG, EDWARD A.;BAYRAKERI, SADIK;GERSHTEIN, EUGENE;GORDON, DONALD F.;COMITO, JOHN |
分类号 |
H04N5/44;H04N5/445;H04N5/45;H04N7/16;H04N7/24;H04N7/52;(IPC1-7):H04N7/16;G06F3/00;G06F13/00 |
主分类号 |
H04N5/44 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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