Apparatus for reproducing data recorded on a magnetic recording

Details Apparatus for reproducing data recorded on a magnetic recording Apparatus for reproducing data recorded on a magnetic recording

1990-02-20

1993-12-14

Hajec, Donald T.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Head amplifier circuit

360 40, 360 65, G11B 509, G11B 5035

Patent

active

052708764

ABSTRACT:
A magnetic recording and/or reproducing device uses a Viterbi decoding circuit wherein, when data falls within a predetermined range, the level of the reproduced signal is sensed and the level of the reproduced signal is corrected in a manner which reduces bit error caused by noise in the reproduced signal. Alternatively, the value of a previous video signal value is corrected in accordance with the amount of change in an instant signal value.

REFERENCES:
patent: 4321618 (1982-03-01), Hirose et al.
patent: 4750058 (1988-06-01), Hirt et al.
patent: 4991034 (1991-02-01), Sato
patent: 5095392 (1992-03-01), Shimazaki et al.
SMPTE Journal vol. 97, No. 1, Jan. 1988, US. pp. 8-12; S. Mita et al.: Adaptive equalization techniques for digital video recording systems p. 8, left column, line 1-right column, line 23; FIGS. 1-3.
IEEE Transactions on Consumer Electronics vol. 34, No. 3, Aug. 1988, New York U.S. pp. 4343-4441; Y. Kubo et al.: Development of a VTR video signal processing IC, paragraph 3; FIGS. 1-3.
IEEE Transactions on Consumer Electronics vol. 34, No. 3, Aug. 1988, New York U.S. pp. 588-595; C. Yamamitsu et al.: An experimental study on bit rate reduction and high density recording for a home-use digital VTR, paragraph 3C paragraph 30; FIGS. 2-5.
Patent Abstracts of Japan vol. 11, No. 359 (E-559) Nov. 21, 1987 & JP-A-62 135 018 (Masaru et al.) Jun. 18, 1987.
IBM Journal of Research and Development vol. 14, No. 4, Jul. 1970, New York US pp. 368-375; H. Kobayashi et al.: Application of partial-response channel coding to magnetic recording systems.

Affiliated with

Also associated with

Rating

Apparatus for reproducing data recorded on a magnetic recording does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for reproducing data recorded on a magnetic recording , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for reproducing data recorded on a magnetic recording will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1710633