G - Physics – 11 – B
Patent
G - Physics
11
B
352/33.3
G11B 11/10 (2006.01) G11B 7/004 (2006.01) G11B 11/105 (2006.01) G11B 20/10 (2006.01) G11B 27/19 (2006.01) G11B 27/30 (2006.01)
Patent
CA 2021681
The present invention is an information recording and reproducing device, which records, erases and reproduces information on and from a memory device having pre-format sections, includes a pre-recorded area detection circuit for detecting a pre-recorded area having information predeterminately recorded and located on the memory device, and timing control circuits for providing timing control of an information recording, erasing or reproducing operation according to a pre- recorded area detecting signal released from the pre-recorded area detection circuit. Therefore, the timing of each recording, reproducing, or erasing operation is accurately determined. Additionally, the timing control may be performed according to both the pre-recorded area detecting signal of the present invention and the conventional synchronization detection signal. In case an error should occur in the synchronization detection signals, since the pre-recorded area detecting signal is released every time pre-recorded information for a sector mark or the like is reproduced, an accurate timing control without time lag is achieved according to the pre-recorded area detecting signals.
Deguchi Toshihisa
Fuji Hiroshi
Yamaguchi Takeshi
Deguchi Toshihisa
Fuji Hiroshi
G. Ronald Bell & Associates
Sharp Kabushiki Kaisha
Yamaguchi Takeshi
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