Programmable encoder using an addressable display

Details Programmable encoder using an addressable display Programmable encoder using an addressable display

1994-10-14

1996-10-08

Hoff, Marc S.

Coded data generation or conversion

Digital pattern reading type converter

Optical

347 37, H03M 122

Patent

active

055635911

ABSTRACT:
A programmable encoder having an addressable display device to display an encoder pattern of fiducial marks. The programmable encoder can be programmed to display an encoder pattern on a liquid crystal display. A sensor senses the marks on the pattern and generates sensor signals indicative of the sensed pattern. A controller connected to the sensor receives the sensor signals and outputs control signals which control the movement of a machine, such as an ink jet printer. The programmable encoder can be programmed to display any number of patterns on the addressable display device, and consequently, is highly adaptable to any number of applications requiring position, speed, or acceleration control.

REFERENCES:
patent: 4786803 (1988-11-01), Majette et al.
patent: 4789874 (1988-12-01), Majette et al.
patent: 5187479 (1993-02-01), Johnson, III et al.
patent: 5206645 (1993-04-01), Urich
patent: 5254919 (1993-10-01), Bridges et al.

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