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Patent Searching and Data


Title:
MAGNETIC RECORDING AND REPRODUCING DEVICE
Document Type and Number:
Japanese Patent JP3041118
Kind Code:
B2
Abstract:

PURPOSE: To provide a magnetic recording and reproducing device realizing a lower error rate without complicating an equalizer of reproducing system by making a distortion and S/N of a reproducing signal against the wear of head to the state closest to the initial state of the time before the wear of head.
CONSTITUTION: A recording current corresponding to an input signal amplified by a recording amplifier 2 is supplied to a recording head 3 by an information signal of a video signal, etc., inputted from a signal input terminal 1. The head 3 is mounted on a rotary drum to record the signal on a magnetic tape 4 running while being wound round the rotary drum. The recorded signal is reproduced by a reproducing head 5 which is similarly mounted on the rotary drum and amplified by a preamplifier 6. The output signal from the preamplifier 6 is inputted to a distortion detecting circuit 8 through the fixed equalizer 7 for the detection of the distortion and outputted to a recording current 9. The recorded current outputted from the recording amplifier 2 is adjusted by the recording current circuit 9 so that the distortion is minimized in accordance with the detected signal from the distortion detecting circuit 8.


Inventors:
Katsumi Fukuchi
Yasuyoshi Nishikawa
Hisashi Yamada
Application Number:
JP37992A
Publication Date:
May 15, 2000
Filing Date:
January 06, 1992
Export Citation:
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Assignee:
Toshiba Corporation
International Classes:
G11B5/09; G11B5/02; G11B5/035; G11B5/455; G11B20/10; G11B27/36; (IPC1-7): G11B5/09; G11B5/09
Attorney, Agent or Firm:
Takehiko Suzue