H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 5/76 (2006.01) G11B 20/18 (2006.01) H04N 17/06 (2006.01)
Patent
CA 2491107
A method for DVR (digital video recorder) recovery from interruptions is described. Interruptions include power failures, primary storage device failure, Emergency Alert broadcasts, loss of signal (LOS), etc. Upon detecting that an interruption has occurred, the DVR determines the duration of the interruption and consults a saved "journal" of DVR operations to determine what it was doing when the interruption occurred. If a program that was being recorded prior to the interruption is still running when the interruption ends, recording is resumed. If the interruption is long, then the DVR searches an electronic program guide to see if the program is available for re-recording at a later time. If so, it schedules re-recording at that time. Recovery methods for insufficient primary storage space are also described.
Elcock Albert F.
Garrison William J.
General Instrument Corporation
Gowling Lafleur Henderson Llp
LandOfFree
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