Patent ID: 8081869
Filing Date: 2011-12-20
Classification: G11B

Abstract:
1. A time-varying image recording device that controls a recording operation for recording time-varying image data in a recording medium, in which said time-varying image data is sequentially recorded in blocks having a predetermined unit time, and block information containing the total number of said blocks, a starting position of a recording area in which each of said blocks is recorded, and a size of each of said recording areas, is then recorded after a series of said blocks of said time-varying image data, said time-varying image recording device comprising: a data recording processor that records time-varying image data for each block, in said recording medium; a recording process result determination processor that determines whether a result of a recording process obtained by said data recording processor is normal or abnormal; a recording capacity obtaining processor that obtains a block information recording capacity, which is a capacity that is necessary to record block information, based on the number of blocks already recorded in said recording medium, when the recording process result is abnormal; a sensing processor that senses an address of said recording medium, at which said data recording processor records said block information, in accordance with said block information recording capacity; and a block information recording processor that records said block information at said address sensed by said sensing processor; wherein when the recording process result determination processor determines that the result of recording process of(n+1)-th block is abnormal, said recording capacity obtaining processor calculates a memory size of the block information for n blocks, in which time-varying data has been stored by the data recording processor, and the result of the recording process of each of the n blocks is determined normal, said sensing processor determines that m blocks are necessary to store the calculated memory size of the block information, and determines an address of (n−m+1)-th block as the sensed address of the recording medium, at which said data recording processor starts recording the block information, and said block information recording processor records the block information for n−m blocks, from the address of (n−m+1)-th block.