G - Physics – 11 – B
Patent
G - Physics
11
B
352/10.4, 352/19
G11B 27/02 (2006.01) G11B 5/09 (2006.01) G11B 15/52 (2006.01) G11B 19/28 (2006.01) G11B 20/10 (2006.01) G11B 20/12 (2006.01) G11B 20/18 (2006.01) G11B 27/032 (2006.01) G11B 27/10 (2006.01)
Patent
CA 1204506
TITLE: APPARATUS FOR RECORDING AND REPRODUCING A DIGITAL SIGNAL ABSTRACT OF THE DISCLOSURE An apparatus for reproducing a digital signal recorded on a recording medium in the form of successive data blocks, each data block including plural data words is provided. Each data block includes at least plural data words and a block address circulating with a pre- determined phase relation to a certain reference signal. In accordance with the reference signal, a control signal is recorded on the recording medium. the control signal is reproduced from the recording medium and a reference phase signal with a frequency of an integral multiple of more than 2 the frequency of the control signal is sampled by the control signal, and a phase comparison output and a lock mode signal are generated from the sampling output. The running phase of the recording medium is controlled by the phase comparison output whereby the fluctuation of running speed of the recording medium due to unsuccessive phase of the control signal can be suppressed. Further, by the lock mode signal, it becomes easy to change the phase of a block address which Will be added to a newly recordable digital signal.
421205
Tanaka Masato
Watanabe Nobuhiko
Gowling Lafleur Henderson Llp
Sony Corporation
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