Coded data generation or conversion – Digital pattern reading type converter – Incremental
Patent
1994-11-23
1995-08-01
Hoff, Marc S.
Coded data generation or conversion
Digital pattern reading type converter
Incremental
341 13, H03M 130
Patent
active
054383307
ABSTRACT:
An absolute encoder has a code plate formed with an absolute pattern and an incremental pattern. A first detector detects the absolute pattern, and outputs an absolute signal. A second detector detects the incremental pattern, and outputs an incremental signal. The absolute encoder stores the absolute signal according to an external input signal, and forms a corrected absolute signal on the basis of the incremental signal input after the absolute signal is stored.
REFERENCES:
patent: 4914437 (1990-04-01), Kibrick et al.
Ohno Koh
Yamazaki Yuji
Hoff Marc S.
Nikon Corporation
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