Patent ID: 7471600
Filing Date: 2008-12-30
Classification: G11B

Abstract:
1. A data recording device for recording data using a synchronization clock generated on the basis of clock information formed on a recording medium, the data recording device comprising: an interval counter; an α counter; and a segment counter; wherein the interval counter and the α counter operate with a clock having a constant frequency which is independent of the clock information, the interval counter is reset in terms of an interval count value when division information for dividing a frame into plural segments is detected and, also, is reset in terms of the interval count value and activates the α counter when the interval counter reaches an interval count value corresponding to a segment length, the α counter is reset in terms of an α count value when the division information is detected and, also, is reset in terms of the α count value and increments a segment count value of the segment counter when the α counter reaches an α count value corresponding to a predetermined length smaller than the segment length, and the segment counter increments the segment count value when the division information is detected and outputs a first writing inhibition signal when the segment counter reaches a segment count value corresponding to a frame length.