发明名称 |
Method and apparatus for a virtual system time clock for digital audio/video processor |
摘要 |
A digital video processor and operating method for a receiving raw audio and video data representing images and sound to be played. The processor includes a demultiplexer for receiving the raw audio and video data and providing demultiplexed audio and video data to a memory. A first system time clock provides first time values in response to being continuously clocked by the demultiplexer. A CPU decodes and plays back the audio and video data as a function of the audio and video PTS values. The processor further includes a second system time clock providing second time values in response to being periodically incremented by the CPU. The CPU periodically sets the second system time clock to a second time value equal to a current first time value of the first system time clock in response to a standard play mode, and the CPU periodically sets the first system time clock to a first time value equal to a current second time value of the second system time clock in response to a trick play mode.
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申请公布号 |
US6363207(B1) |
申请公布日期 |
2002.03.26 |
申请号 |
US19980177261 |
申请日期 |
1998.10.22 |
申请人 |
SONY CORPORATION;SONY ELECTRONICS INC. |
发明人 |
DURUOZ CEM;OZCELIK TANER;YU GONG-SAN |
分类号 |
H04N5/04;H04N5/44;H04N5/45;H04N5/60;H04N5/783;H04N7/52;H04N7/62;H04N9/804;H04N9/806;H04N9/82;(IPC1-7):H04N5/91;H04N7/12 |
主分类号 |
H04N5/04 |
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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