Digital signal processing apparatus for recording and reproducin

Details Digital signal processing apparatus for recording and reproducin Digital signal processing apparatus for recording and reproducin

1995-04-13

1996-10-08

Tran, Thai Q.

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

360 12, 386109, 386125, H04N 576

Patent

active

055637140

ABSTRACT:
Time-based compressed data representing a program is supplied from a local conditional access circuit to two recording signal processing circuits which supply the data to be recorded simultaneously in time-compressed form by a digital VTR and an HDD (hard disc drive). The HDD need only store enough data to allow the digital VTR to record the entire program and to synchronize the output of the VTR with the output of the HDD. Once the program has been recorded on the VTR, it is reproduced therefrom concurrently with the portion of the program reproduced by the HDD and, once synchronization therebetween is reached, the VTR-reproduced data replaces the HDD-reproduced data. The reproduced data is supplied to an MPEG decoder circuit to be output as a reconstructed program for immediate display.

REFERENCES:
patent: 4685003 (1987-08-01), Westland
patent: 5438459 (1995-08-01), Suga et al.
patent: 5442390 (1995-08-01), Hooper et al.
patent: 5452097 (1995-09-01), Koga et al.

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