Owner THOMSON LICENSING S.A.

Inventors RICH, Michael, Dillon; STROTHMANN, James, Alan

Pub. Number AU-A-2002363941

PCT Number PCT/US02/37286

PCT Pub. Number WO2003/047248

Priority 09/990,657 21.11.01 US

Filing date 20 November 2002

Wipo publication date 10 June 2003

H04N 005/91 Details of television systems - Television signal processing therefor

G11B 019/02 Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor - Control of operating function, e.g. switching from recording to reproducing

G11B 020/10 Signal processing not specific to the method of recording or reproducing - Digital recording or reproducing

G11B 005/58 Recording by magnetisation or demagnetisation of a record carrier - with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following

G11B 007/00 Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power

G11B 007/09 Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power - with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following

G11B 007/095 Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power - specially adapted for discs, e.g. for compensation of eccentricity or wobble

G11B 011/03 Recording on, or reproducing from, the same record carrier wherein for these two operations the methods or means are covered by different main groups of groups or by different subgroups of group

G11B 011/105 Recording on, or reproducing from, the same record carrier wherein for these two operations the methods or means are covered by different main groups of groups or by different subgroups of group

G11B 011/11 Recording on, or reproducing from, the same record carrier wherein for these two operations the methods or means are covered by different main groups of groups or by different subgroups of group

G11B 011/115 Recording on, or reproducing from, the same record carrier wherein for these two operations the methods or means are covered by different main groups of groups or by different subgroups of group

G11B 011/12 Recording on, or reproducing from, the same record carrier wherein for these two operations the methods or means are covered by different main groups of groups or by different subgroups of group

G11B 020/18 Signal processing not specific to the method of recording or reproducing - Error detection or correction

G11B 027/36 Editing - Monitoring, i.e. supervising the progress of recording or reproducing

H02H 003/05 Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection - with means for increasing reliability, e.g. redundancy arrangements

H03K 019/003 Logic circuits, i.e. having at least two inputs acting on one output - Modifications for increasing the reliability

H04B 001/74 Details of transmission systems, not covered by a single one of groups - for increasing reliability, e.g. using redundant or spare channels or apparatus

H04L 001/22 Arrangements for detecting or preventing errors in the information received - using redundant apparatus to increase reliability

H05K 010/00 Arrangements for improving the operating reliability of electronic equipment, e.g. by providing a similar stand-by unit

G11C 029/00 Checking stores for correct operation

H04N 005/781 Details of television systems - on discs or drums

G11B 021/08 Head arrangements not specific to the method of recording or reproducing - Track changing or selecting

G11B 005/09 Recording by magnetisation or demagnetisation of a record carrier - Digital recording

G11B 015/52 Driving, starting or stopping record carriers of filamentary or web form