Encoder signal generating device

Details Encoder signal generating device Encoder signal generating device

1997-02-28

1998-11-24

Young, Brian K.

Coded data generation or conversion

Digital pattern reading type converter

Optical

341 1, H03M 122

Patent

active

058413715

ABSTRACT:
An encoder signal generating device in which a light receiving element (1) is constituted by a one-chip planar type phototransistor array that has a plurality of light receiving portions (21). Thus, this encoder signal generating device needs no amplification circuit. Even when using this encoder signal generating device as a device of the multi-channel type, the size of the light receiving element (1) is reduced, in comparison with that of a conventional light receiving element. Moreover, a highly sensitive encoder signal generating device, which has good S/N characteristics, is obtained.

REFERENCES:
patent: 4604521 (1986-08-01), Takekoshi et al.
patent: 4661696 (1987-04-01), Stone
patent: 4975569 (1990-12-01), Ebina et al.

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