Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2011-07-19
2011-07-19
Banks Harold, Marsha D (Department: 2482)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
Reexamination Certificate
active
07983345
ABSTRACT:
This invention realizes correct adjustment of lip-syncing of video and audio on a decoder side. According to this invention, a plurality of encoded video frames given video time stamps VTS and a plurality of encoded audio frames given audio time stamps ATS are received and decoded from an encoder side, and the resultant plurality of video frames VF1and plurality of audio frames AF1are stored, a time difference which occurs due to a difference between the clock frequency of the reference clock of the encoder side and the clock frequency of the system time clock stc of the decoder side is calculated by a renderer37, 67,and video frame output timing for sequentially outputting the plurality of video frames VF1frame by frame is adjusted based on audio frame output timing for sequentially outputting the plurality of audio frames AF1frame by frame, according to the time difference, resulting in realizing the lip-syncing with keeping sound continuousness.
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Goto Koichi
Takada Shinji
Tsukagoshi Ikuo
Anyikire Chikaodili E
Banks Harold Marsha D
Lerner David Littenberg Krumholz & Mentlik LLP
Sony Corporation
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