PRML channel with EPR4 equalization and clocking

Details PRML channel with EPR4 equalization and clocking PRML channel with EPR4 equalization and clocking

1996-08-16

1999-01-05

Chin, Stephen

Pulse or digital communications

Multilevel

Partial response

375262, 375263, H04L 2534, H04L 2549

Patent

active

058570020

ABSTRACT:
A method and apparatus for decoding a partial response encoded signal to generate a decoded signal. The first stage of the apparatus, a first delay filter, receives the partial response encoded signal and filters it with a delay characteristic of (1-D.sup.2)(1+D). The second stage, a timing system, generates a digital signal representative of the first filtered signal. The timing system includes an equalizer with an EPR4 equalization characteristic. The third stage, a second delay filter, filters the signal with a delay characteristic of 1-D. The final stage, a partial Viterbi decoder, generates the decoded signal.

REFERENCES:
patent: 4013980 (1977-03-01), Schollmeier
patent: 4504872 (1985-03-01), Peterson
patent: 4614933 (1986-09-01), Yamashita et al.
patent: 4866736 (1989-09-01), Bergmans
patent: 4888775 (1989-12-01), Karabed et al.
patent: 5093843 (1992-03-01), Hirosaki et al.
patent: 5208816 (1993-05-01), Seshardi et al.
patent: 5263052 (1993-11-01), Borth et al.
patent: 5341386 (1994-08-01), Shimoda et al.
patent: 5355376 (1994-10-01), Cox et al.
patent: 5434886 (1995-07-01), Kazawa et al.
patent: 5521945 (1996-05-01), Knudson
patent: 5581568 (1996-12-01), Togami
patent: 5619539 (1997-04-01), Coker et al.
patent: 5661760 (1997-08-01), Patapoutian et al.
patent: 5677802 (1997-10-01), Saiki et al.
patent: 5689532 (1997-11-01), Fitzpatrick
patent: 5696793 (1997-12-01), Hashimura
A.M. Patel and H.K. Thapar, Class Of Partial Response Systems for Increasing Storage Density In Magnetic Recording, IBM Technical Disclosure Bulletin, vol. 32, No. #B, Aug. 1989.

Affiliated with

Also associated with

Rating

PRML channel with EPR4 equalization and clocking does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with PRML channel with EPR4 equalization and clocking, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and PRML channel with EPR4 equalization and clocking will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-867628