Data detection apparatus

Details Data detection apparatus Data detection apparatus

1995-08-21

1996-12-03

Envall, Jr., Roy N.

Excavating

375341, 386113, G06F 1110, H03M 1312, H04N 979

Patent

active

055815685

ABSTRACT:
A data detection apparatus has an A/D (analog to digital) converter which samples and quantizes the output of a low-frequency-emphasizing-type equalization circuit and a digital filter which processes the output of the A/D converter. A Viterbi decoder performs Viterbi decoding of the digital output filter and determines a branchmetric on the basis of an equalization error.

REFERENCES:
patent: 4606027 (1986-08-01), Otani
patent: 4847871 (1989-07-01), Matsushita et al.
patent: 4852034 (1989-07-01), Takayama
patent: 5089917 (1992-02-01), Kanota et al.
patent: 5099366 (1992-03-01), Ahlgrim
patent: 5258940 (1993-11-01), Coker et al.
patent: 5287385 (1994-02-01), Sugawara et al.
patent: 5400149 (1995-03-01), Minakawa
"Application of Partial-Response Channel Coding to Magnetic Recording Systems"; by H. Kobayashi et al.; IBM Journal of research and development vol. 14, No. 4, pp. 368-375, Jul. 1970.
"The Viterbi Algorithm" by G. David Forney, Jr.; Proceedings of the IEEE; Mar. 1973; vol. 61, No. 3; pp. 268-278.

Affiliated with

Also associated with

Rating

Data detection apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data detection apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data detection apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-791866