Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Reexamination Certificate
2004-10-29
2008-12-09
Tran, Thai (Department: 2621)
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
C386S349000
Reexamination Certificate
active
07463819
ABSTRACT:
A video playback circuit receives flip call information and vertical synchronization information, and in response determines a pause mode and a playback mode. Flip call information, as is known in the art, provides an indication for flipping between a front buffer and a back buffer, in order to facilitate rendering into one buffer while rasterizing out of the other buffer. Vertical synchronization information describes the completion of rasterizing an image onto a display, and often occurs at periodic intervals, e.g., 60 Hz, 100 Hz. The video playback circuit further includes a pause/playback-based frame buffer pointer information generator. The pause/playback-based frame buffer pointer information generator generates unfiltered frame buffer pointer information when in the pause mode. Otherwise, the pause/playback-based frame buffer pointer information generator generates filtered frame buffer pointer information when in the playback mode. The unfiltered frame buffer pointer information indicates rasterization of unfiltered rasterization data from the frame buffer during the pause mode. Similarly, the filtered frame buffer pointer information indicates rasterization of filtered rasterization data from the frame buffer when in the playback mode.
REFERENCES:
patent: 6208350 (2001-03-01), Herrera
patent: 6339427 (2002-01-01), Laksono et al.
patent: 2003/0218591 (2003-11-01), Shen et al.
patent: 2004/0001696 (2004-01-01), Kogusuri
Masahiro Baba and Haruhiko Okumura; Software Processed Level-Adaptive Overdrive (SLAO) Method for Multi-Media LCDs with YUV Video Data; pp. 155-158.
Cao Peter
Law Henry
Man Kenneth
ATI Technologies ULC
Dunn Mishawn
Tran Thai
Vedder Price P.C.
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