Data recorder and data producing circuit

摘要

A data recorder for recording data onto a record medium (24) on which a sync signal is inserted at a given interval, has a sequence controller (100), wherein, after receiving the command from the system controller (101) which triggers an initiation of a recording operation, the sequence controller (100) activates the first encoder (3) in response to a leading end signal of the encoded block from the sync signal set-up section (29), activates the first encoder (3) and the second encoder (11) in response to a leading end signal of the next encoded block, and activates the first encoder (3), the second encoder (11) and the data reader (16) in response to a leading end signal of the next following encoded block, and wherein, during the absence of the command from the system controller (101) which triggers an initiation of a recording operation, the sequence controller (100) deactivates the first encoder (3) in response to a leading end signal of an encoded block from the sync signal set-up section (29), deactivates the first encoder (3) and the second encoder (11) in response to a leading end signal of the next encoded block, and deactivates the first encoder (3), the second encoder (11) and the data reader (16) in response to a leading end signal of the next following encoded block. <IMAGE>