G - Physics – 11 – B
Patent
G - Physics
11
B
352/19.6
G11B 27/10 (2006.01) G11B 15/52 (2006.01) G11B 20/10 (2006.01) G11B 27/32 (2006.01)
Patent
CA 1152637
SO1304 S8OP61 APPARATUS FOR RECORDING AND/OR REPRODUCING DIGITAL SIGNAL ABSTRACT OF THE DISCLOSURE An apparatus for recording and/or reproducing a serial digitized analog signal controls the transport speed of a recording medium according to the sampling rate employed in digitizing the analog signal to produce a constant data density on the record- ing medium regardless of the sampling rate selected. The fre- quency of a fundamental clock signal establishes the sampling frequency during recording. A coded timing signal also recorded on the recording medium includes both a sync signal and a coded identity of the sampling frequency in use. During reproduction, the coded identity of the sampling frequency is used to select the same fundamental clock signal as was used during recording and the reproduced sync signal is phase compared with a reference signal derived from the fundamental clock signal to corresponding- ly control the speed ant phase of transport of the recording med- ium. The fundamental clock signal may be manually varied during reproduction for pitch control of the reproduced analog signal. -i-
351361
Kanai Chiaki
Sonoda Takenori
Tanaka Masato
Tsuchiya Yoshikazu
Watanabe Nobuhiko
Gowling Lafleur Henderson Llp
Sony Corporation
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