Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1997-12-24
2000-10-24
Tran, Thai
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
386 52, 386 66, H04N 576, H04N 592
Patent
active
061379441
ABSTRACT:
An apparatus having two or more digital video tape recorders provides high-quality digital data copying. The apparatus comprises a first digital video tape recorder; a second digital video tape recorder; a transfer unit which receives data on a first data bus, delays the data by a time T3, and outputs the delayed data to a second data bus synchronized to a recording synchronizing signal; and a controller for producing a reproducing synchronizing signal and a recording synchronizing signal, and controlling the transfer unit. The first digital video tape recorder comprises a first reproducing circuit for converting data read from a tape to a specified transfer format, and outputs the converted data to the first data bus synchronized to the reproducing synchronizing signal; and a second reproducing circuit for receiving data on the first data bus, delaying the data for a time T1, converting the delayed data to an external format, and outputting it. The second digital video tape recorder comprises a second recording circuit for delaying data in an external format received from outside by a time T2, converting the delayed data to the transfer format, and outputting converted data to the second data bus synchronized to the recording synchronizing signal; and a first recording circuit for receiving data on the second data bus synchronized to the recording synchronizing signal, converting it to a recording format, and recording it on a tape. The timing of the reproducing synchronizing signal is advanced by the delay time T3 relative to the timing of the recording synchronizing signal.
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Matsushita Electric - Industrial Co., Ltd.
Tran Thai
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