Rotation information detecting apparatus and method

Details Rotation information detecting apparatus and method Rotation information detecting apparatus and method

1995-07-28

1997-06-17

Hindi, Nabil

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

25023116, G11B 509, G01D 534

Patent

active

056403771

ABSTRACT:
The present invention relates to a rotation information detecting method of detecting rotation information of a rotating object, comprising the step of mounting a rotating scale on a rotating shaft of the rotating object, said rotating scale having a first pattern for detecting rotation information formed thereon in advance, the detection step of detecting the rotation information of the rotating object by detecting the first pattern and the formation step of forming a second pattern for detecting rotation information on the rotating scale on the basis of the detected rotation information.

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patent: 5091643 (1992-02-01), Okutani et al.
patent: 5239177 (1993-08-01), Cunniff
patent: 5369271 (1994-11-01), Nyui
patent: 5406077 (1995-04-01), Aoki et al.
patent: 5448060 (1995-09-01), Orton
patent: 5451776 (1995-09-01), Kolloff et al.

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