Method and apparatus for effecting fuzzy control

Details Method and apparatus for effecting fuzzy control Method and apparatus for effecting fuzzy control

1992-09-29

1994-02-15

Fleming, Michael R.

Dynamic magnetic information storage or retrieval

Head

Core

395900, 360 7701, G05B 1302, G11B 5008, G06F 944

Patent

active

052874320

ABSTRACT:
Fuzzy control is disclosed in the environment of tracking control for a playback head relative to a medium from which signals are played back. Tracking control data is generated as a function of the detected signal level of the played back signal by using fuzzy inference to obtain direction and magnitude values of the control data which then is used to adjust the tracking of the head. Membership functions for tracking control signals are represented as a set of equivalent triangles and are provided as identifying data characterizing the shape of a membership function and position data locating the respective position of each membership function along the abscissa.

REFERENCES:
patent: 4694418 (1987-09-01), Ueno et al.
patent: 4760896 (1988-08-01), Yamaguchi
patent: 4837725 (1989-06-01), Yamakawa
patent: 4864490 (1989-09-01), Nomoto et al.
patent: 4875184 (1989-10-01), Yamakawa
patent: 5054585 (1991-10-01), Amano
patent: 5104109 (1992-04-01), Kubo
Togai et al., "A Fuzzy Logic Chip and a Fuzzy Inference Accelerator for Real-Time Approximate Reasoning", Proc. 17th Intl. Symp. on Multiple Valued Logic, May 1987, 25-29.
Noriyuki, Suzuki et al., "VTR Mechanism Adjustment Machine", National Technical Report, vol. 36, No. 2, Apr. 1990, 79-84.
Elektronica (Inc. Databus), vol. 37, Nos. 1/2, Jan. 20, 1989, pp. 34-43, Deventer, NL; J. M. Van Thiel, "Redeneren met vage gegevens".
International Journal Man-Machine Studies, vol. 7, 2nd Nov. 1973, pp. 1-13; E. H. Mamdani et al.: "An experiment in linguistic synthesis with fuzzy logic controller".
EDN Electrical Design News, vol. 32, No. 8, 15th Apr. 1987, pp. 201-204, Newton, Ma. US; P. J. Guilamo: "Fuzzy logic allows creation of precise process controllers".
Patent Abstracts of Japan, vol. 12, No. 363 (P-764), Sep. 29, 1988; & JP-A-63 113 733 (Fuji Electric Co. Ltd) 18 May 1988.
Patent Abstracts of Japan, vol. 12, No. 377 (P-768) Oct. 7, 1988; & JP-A-63 123 177 (Omron Tateisi Electronics Co.) 26 May 1988.
Patent Abstracts of Japan, vol. 15, No. 192 (P-1202) Apr. 17, 1991; & JP-A-03044 815 (Omron Corp.) Feb. 26, 1991.
Patent Abstracts of Japan, vol. 15, No. 153 (P-1191), Apr. 17, 1991 & JP-1A-03 023 522 (Omron Corp.) Jan. 31, 1991.
Patent Abstracts of Japan, No. 7376 (E-78): & JP-A-53 090 910 (Matsushita) Oct. 8, 1978.

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