Frame synchronizing circuit in a magnetic recording and reproduc

Details Frame synchronizing circuit in a magnetic recording and reproduc Frame synchronizing circuit in a magnetic recording and reproduc

1996-08-20

2000-11-28

Sniezek, Andrew L.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7308, G11B 5584

Patent

active

061543365

ABSTRACT:
A reproducing signal read out by a reproducing head is transmitted to a demodulator including a track number detecting circuit through a reproducing amplifier. A microcomputer performs tracking control by controlling the rotation of a capstan based on the error information obtained by a tracking error detector. A reference frame pulse generating circuit 101 of the microcomputer performs frame synchronization by generating a reference frame pulse synchronized with the reference pulse of a drum generated by a drum reference generating part based on the predetermined track number (for example, the head value of the track numbers) of the track numbers of a reproducing frame detected by the track number detecting circuit.

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Patent Abstract of Japan, vol. 018, No. 535 (E-1615), Jul. 8, 1994, Takeo, Magnetic Recording and Reproducing Device.
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Patent Abstract of Japan, vol. 017, No. 084 (P-1490), Oct. 9, 1992, Makoto, Reproducing Device.

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