G - Physics – 11 – B
Patent
G - Physics
11
B
352/21.3
G11B 5/588 (2006.01) G11B 5/592 (2006.01)
Patent
CA 1300747
TITLE: METHOD AND APPARATUS FOR RECORDING A DIGITAL SIGNAL ABSTRACT OF THE DISCLOSURE In a system for recording and reproducing digital signals on a magnetic tape using a rotary head, in which the signals are recorded as a series of slanted tracks without guard bands, a pilot signal that controls tracking alignment of a playback head is recorded at a particular position in a specific pilot signal record region, independent of the information signal record region. An erase signal having various recording lengths is also recorded in the pilot signal region such that a start position of the erase signal corres- ponds substantially to a center portion of the pilot signal on the adjacent track. When the recorded tracks are reproduced by a rotary playback head having a tracing width greater than the track width, the pilot signals from the adjacent tracks will be sampled by sampling pulses generated in response to reproduced erase signal and compared in level, and the compar- ison output will be used to control the tracking alignment of the rotary playback head.
487769
Odaka Kentaro
Ohmori Takashi
Ohmura Yoshimoto
Sugiki Hiraku
Yamada Makoto
Gowling Lafleur Henderson Llp
Sony Corporation
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