US Patent No: 6,700,721

Number of patents in Portfolio can not be more than 2000

Magnetic recording and reproducing apparatus and semiconductor integrated circuit for use in the same comprising a read/write signal processor having an interleave write data generator

ALSO PUBLISHED AS: 20020171960

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Abstract

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A magnetic recording and reproducing apparatus includes a R/W signal processor having a write data generator arranged to be of an interleave system and transmitting/receiving data to/from the R/W amplifier via a plurality of signal lines. In addition, the R/W amplifier has a compound circuit provided for the write data of the interleave system from the R/W signal processor and is formed as an integrated circuit, moreover, a 1/2 prescaler is provided at the output of the write data generator, making transmitting and receiving write data in NRZI CODE.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HITACHI GLOBAL STORAGE TECHNOLOGIES JAPAN, LTD.TOKYO994

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ashikawa, Kazutoshi Maebashi, JP 9 111
Hirooka, Tsuguyoshi Fujisawa, JP 8 66
Miyazawa, Shoichi Yokohama, JP 33 352
Mori, Masashi Oobu, JP 86 342
Saiki, Eisaku Yokohama, JP 28 331
Suzumura, Shintaro Yokohama, JP 11 124
Takashi, Terumi Chigasaki, JP 86 621

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SEAGATE TECHNOLOGY LLC (2)
5,243,604 On-the-fly error correction 8 1990
5,530,600 Signal processing system including adaptive read equalizer with shut off mode for disk drives 5 1995
 
SONY CORPORATION (2)
5,355,263 Rotary head type magnetic tape apparatus 6 1990
5,481,554 Data transmission apparatus for transmitting code data 99 1993
 
AIWA CO., LTD. (1)
5,694,064 Peak detection circuit and magnetic storage medium playback apparatus 4 1995
 
CIRRUS LOGIC INTERNATIONAL LTD. (1)
5,359,631 Timing recovery circuit for synchronous waveform sampling 55 1992
 
HITACHI GLOBAL STORAGE TECHNOLOGIES JAPAN, LTD. (1)
5,307,214 Magnetic recording apparatus 6 1992
 
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE (1)
5,028,922 Multiplexed encoder and decoder with address mark generation/check and precompensation circuits 57 1989
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
4,964,107 Relative timing precompensation of high-speed pulse signals for digital magnetic recoding 19 1990
 
TOSHIBA STORAGE DEVICE CORPORATION (1)
5,680,264 Dynamically damped magnetic recording circuit 8 1995
 
VTC INC. (1)
5,488,518 Programmable pre-amplifier using a serial shift register to output a plurality of control signals 20 1994
 
YAMAHA CORPORATION (1)
5,340,940 Musical tone generation apparatus capable of writing/reading parameters at high speed 8 1991

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
HITACHI, LTD. (1)
7,239,467 Storage media reading writing system 4 2004

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