METHOD FOR IMPROVING BANDWIDTH EFFICIENCY

WIPO Patent Application WO2001089203

A3

In a method for dynamically managing a digital recording system's bandwidth requirements, accesses to the recording system's hard drive are prioritized according to a pre-defined policy which gives the first priority to the data streams being written to the disk, the second priority to the data streams being read from the disk, and the third priority to other accesses to the disk. The recording system's bandwidth efficiency may also be improved by optimizing allocation of the disk's storage space which is partitioned into lower bandwidth portions and higher bandwidth portions, where lower bandwidth data streams are stored in lower bandwidth portions and higher bandwidth data streams are stored in higher bandwidth portions. The inner portions of the disk are lower bandwidth portions and thus data streams are recorded from the inner diameter outwards to the outer diameter of the disk. A recorded data stream may be migrated from a higher bandwidth portion to a lower bandwidth portion.

CHAMBERLIN DAVID (US)
PLATT DAVID (US)
VANNIER ERIC (US)
ZANCHELSKY DAN (US)

PCT/US2001/015323

May 16, 2002

May 10, 2001

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TIVO INC (US)
CHAMBERLIN DAVID (US)
PLATT DAVID (US)
VANNIER ERIC (US)
ZANCHELSKY DAN (US)

H04N5/765; G11B20/10; G11B20/12; H04N5/76; H04N5/781; H04N9/804; (IPC1-7): H04N5/00

WO1999033265A1	1999-07-01
WO1999022513A2	1999-05-06

EP0618695A2	1994-10-05
US5566174A	1996-10-15
EP0785675A2	1997-07-23
EP0762300A2	1997-03-12
US5543861A	1996-08-06
EP0940983A1	1999-09-08
EP0780758A2	1997-06-25
US5754882A	1998-05-19
US5926604A	1999-07-20
EP0289914A2	1988-11-09

PATENT ABSTRACTS OF JAPAN vol. 1999, no. 09 30 July 1999 (1999-07-30)

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