Patent ID: 6701061
Filing Date: 2004-03-02
Classification: G11B,H04N

Abstract:
An endless video recording apparatus, characterized in that it comprises:video data recording means (100) for recording video data coded in accordance with the MPEG system for each particular unit formed from at least one or more GOPs into an endless recording area secured in a recording medium (12) and recording, where video data are recorded fully in the endless recording area, new video data in an overwriting relationship on the video data recorded formerly in the endless recording area; mark setting means (113) for setting marks to the particular units; mark management means (112) for recording the positions of the marks, the sizes of the particular units corresponding to the marks and the positions of AAUs corresponding to the GOPs, which form the particular units, in a coordinated relationship with the marks into a database (116); mark erasure means (114) for erasing a mark corresponding to an old particular unit which overlaps with an area into which a new particular unit should be recorded from said database (116); and playback allowing area setting means (115) for referring to said database (116) to set a playback allowing area; and that, when a mark is erased by said mark erasure means (114), said video data recording means (100) rewrites an AAU corresponding to the erased mark into a padding stream based on the relationship between the marks and the AAUs recorded in said database (116) and records the padding stream.