Photography – Having operator controlled data entry into camera
Patent
1996-06-28
1998-08-25
Malley, Daniel P.
Photography
Having operator controlled data entry into camera
G03B 1700
Patent
active
057992185
ABSTRACT:
A rotary encoder which provides multiple-bit encoded signals according to predetermined angular positions comprises a ground segment pattern having a circular arrangement of conductive ground segments and a signal segment pattern having at least one circular arrangement of different conductive signal segments corresponding to bits of each multiple-bit encode signal, which is formed in a circle concentric with the circular arrangement of conductive ground segments, and a rotary contact having a plurality of contact points making contact with the conductive signal segments in each predetermined angular position and a contact point making contact with the conductive ground segments to provide bit signals forming the multiple-bit encoded signal.
REFERENCES:
patent: 4742367 (1988-05-01), Amano et al.
patent: 5005033 (1991-04-01), Miyasaka
patent: 5283606 (1994-02-01), Konno et al.
patent: 5485238 (1996-01-01), Miura et al.
Fuji Photo Optical Co., Ltd.
Malley Daniel P.
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