Encoder wheel arrangement

Details Encoder wheel arrangement Encoder wheel arrangement

Filed on

1999-02-19

Date issued

1999-09-14

Examiner

Shankar, Vijay

Patent Class

Computer graphics processing and selective visual display system

SubClass

Display peripheral interface input device

SubSubClass

Cursor mark position control device

Other Related Categories

345165, 345166, G09G 508

Type

Patent

Status

active

Patent number

059529970

Description

ABSTRACT:
An encoder wheel arrangement, which includes a rack mounted on a circuit board, a positioning block supported on spring elements in the rack, an operation wheel supported on the positioning block and turned by hand to rotate a shaft and a notched disk relative to a photoelectric transmitter and a photoelectric receiver on the circuit board, the operation wheel having a plurality of axial grooves equiangularly spaced around its inside wall and turned with the operation wheel to alternatively pass over two opposite ends of the positioning block of the rack for quick positioning at one of a series of angular positions.

REFERENCES:
patent: 5168268 (1992-12-01), Levy
patent: 5252968 (1993-10-01), Donovan
patent: 5386460 (1995-01-01), Tseng

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