Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2005-07-12
2005-07-12
Luu, Thanh X. (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
Reexamination Certificate
active
06917034
ABSTRACT:
An electronic equipment has a movable body and a position detecting device having an incremental-type encoder and an incremental-type counter. The position detecting device detects a position of the movable body by setting a starting point of position detection by the incremental-type encoder to a position that the movable body passes through most frequently during movement thereof.
REFERENCES:
patent: 3906223 (1975-09-01), White
patent: 4491826 (1985-01-01), Krogh et al.
patent: 4802777 (1989-02-01), Yamada
patent: 4803354 (1989-02-01), Onodera et al.
patent: 5210562 (1993-05-01), Miyazawa et al.
patent: 6399941 (2002-06-01), Nakagaki et al.
Iino Akihiro
Kasuga Masao
Suzuki Mizuaki
Adams & Wilks
Luu Thanh X.
Seiko Instruments Inc.
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