Motion sensor for sensing the relative position and velocity of

Details Motion sensor for sensing the relative position and velocity of Motion sensor for sensing the relative position and velocity of

Filed on

1987-10-22

Date issued

1989-06-06

Examiner

Goldberg, E. A.

Patent Class

Facsimile and static presentation processing

SubClass

Facsimile

SubSubClass

Recording apparatus

Other Related Categories

346108, 358293, G01D 942, H04N 123

Type

Patent

Status

active

Patent number

048376361

Description

ABSTRACT:
A xerographic copying/printing machine in which the photoreceptor has a row of discrete image marks along one side margin, a CCD type array spaced opposite to and aligned with the row of photoreceptor marks to provide successive blocks of image signals representing the instantaneous pattern of marks viewed by the array on each scan, a light bar spaced opposite the other side of the photoreceptor and aligned with the array for illuminating the array sensors through the marks, and a circuit for converting the image signal output of the array to clock signals representative of photoreceptor speed and position.

REFERENCES:
patent: 3914047 (1975-10-01), Hunt, Jr. et al.
patent: 4017014 (1977-04-01), Luscher
patent: 4316199 (1982-02-01), Greenig
patent: 4360195 (1982-11-01), Schon et al.
patent: 4438917 (1984-03-01), Janssen et al.
patent: 4478405 (1984-10-01), Eertink et al.
patent: 4518862 (1985-05-01), Dorn
patent: 4527069 (1985-07-01), Pfizenmaier
patent: 4668982 (1987-05-01), Tinnerino
patent: 4761662 (1988-08-01), Yoshimoto

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