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1. (WO2001035405) BUFFER OPTIMIZATION FOR SIMULTANEOUS ENCODING-DECODING AND PAUSE-CATCH-UP FOR REAL-TIME DVD RECORDER

Pub. No.:    WO/2001/035405    International Application No.:    PCT/US2000/030214
Publication Date: Fri May 18 01:59:59 CEST 2001 International Filing Date: Fri Nov 03 00:59:59 CET 2000
IPC: G11B 20/00
G11B 20/10
G11B 27/034
G11B 27/036
G11B 27/10
G11B 27/19
G11B 27/28
G11B 27/30
G11B 27/32
H04N 5/76
H04N 5/781
H04N 5/783
H04N 5/85
H04N 5/913
H04N 9/79
H04N 9/804
H04N 9/806
H04N 9/82
H04N 9/87
Applicants: THOMSON LICENSING S.A.
LIN, Shu
Inventors: LIN, Shu
Title: BUFFER OPTIMIZATION FOR SIMULTANEOUS ENCODING-DECODING AND PAUSE-CATCH-UP FOR REAL-TIME DVD RECORDER
Abstract:
A method and system for optimizing performance of a read buffer and a write buffer in a disc media having a feature requiring apparently simultaneous reading and writing. The method includes alternately writing data to the disc media from the write buffer during a write time tW and reading data from the disc media to the read buffer during a read time tR. The read time and the write time are generally separated by a jump time tJ. The write time is selectively controlled so that it is optimized in accordance with respect to the front end read speed, the decoding bit rate, the front end write speed of the recordable media device and the encoding bit rate.