Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Patent
1997-12-23
2000-06-20
Sniezek, Andrew L.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
360 29, 360 46, 360 51, G11B 2006, G11B 5596, G11B 509, G11B 502
Patent
active
060784628
ABSTRACT:
The device is to be used with a parallel architecture partial response maximum likelihood (PRML) reading apparatus comprising a variable-gain input amplifier, a low-pass analog filter, a transversal continuous-time analog filter and two distinct and parallel processing channels interposed between the transversal analog filter and an RLL-NRZ decoder. The two processing channels comprise respective analog-digital converters and respective Viterbi detectors and operate according to sampling sequences that alternate with one another. The device for processing the servo signals comprises a rectifier connected to the outputs of the analog-digital converters and an integrator.
REFERENCES:
patent: 4481643 (1984-11-01), Kitazawa
patent: 4570193 (1986-02-01), Yamashita
patent: 4586094 (1986-04-01), Chambors et al.
patent: 4647994 (1987-03-01), Irwin et al.
patent: 5089757 (1992-02-01), Wilson
patent: 5255128 (1993-10-01), Inoue et al.
patent: 5255131 (1993-10-01), Coker et al.
patent: 5325322 (1994-06-01), Bailey et al.
patent: 5396376 (1995-03-01), Chambors et al.
patent: 5420893 (1995-05-01), Ward
patent: 5424881 (1995-06-01), Behrens et al.
patent: 5592340 (1997-01-01), Minuhin et al.
patent: 5668678 (1997-09-01), Reed et al.
patent: 5774298 (1998-06-01), Cheung et al.
patent: 5796535 (1998-08-01), Tuttle et al.
Forney, Jr., "The Viterbi Algorithm," Proceedings of the IEEE 61(3):268-278, Mar. 1973.
Siegel et al., "Moodulation and Coding for Information Storage," IEEE Communications Magazine, pp. 68-86, Dec. 1991.
Spencer et al., "Analog Implementations of Sampling Detectors," IEEE Transactions on Magnetics 27(6):4516-4521, Nov. 1991.
Goodenough, "DSP Technique Nearly Doubles Disk Capacity," Electronic Design, pp. 53-56, Feb. 4, 1993.
Gadducci Paolo
Moloney David
Pisati Valerio
Zuffada Maurizio
Carlson David V.
Galanthay Theodore E.
Neal Regina Y.
Sniezek Andrew L.
STMicroelectronics S.r.l.
LandOfFree
Device and method for processing servo signals in a parallel arc does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device and method for processing servo signals in a parallel arc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device and method for processing servo signals in a parallel arc will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1858297