Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data clocking
Patent
1998-03-05
2000-09-19
Kim, W. Chris
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Data clocking
G11B 509
Patent
active
061221236
ABSTRACT:
A program is selected from a plurality of programs in an MPEG transport stream for recording on a record carrier. The presence of a program clock reference (PCR) value in a packet in the stream is detected. The packet identifier for the packet is retrieved and stored. Clock reference signals of subsequent packets with a packet identifier equal to the stored packet identifier, are retrieved. The program clock references are used to synchronize a clock counter. Each recorded packet is time stamped according to the clock counter. If clock reference signal is not received within 100 ms, then a packet with a PCR value with a different packet identifier is retrieved and the stored packet identified is replaced by the different packet identifier.
REFERENCES:
patent: 5517250 (1996-05-01), Hoogenboom et al.
patent: 5579183 (1996-11-01), Van Gestel et al.
patent: 5596581 (1997-01-01), Saeijs et al.
"International Organisation for Standardisation, Generic Coding of Moving Pictures and Associated Audio: Systems", ISO/IEC 13818-1, Nov. 13, 1994, pp. i-xix; 1-141.
Asano Makoto
Saeijs Ronald W. J. J.
Goodman Edward W.
Kim W. Chris
U.S. Philips Corporation
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