Position detecting device and method

Details Position detecting device and method Position detecting device and method

1985-04-15

1987-08-18

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358107, 382 18, 356401, H04N 700, H04N 718

Patent

active

046880887

ABSTRACT:
An improved method and device for detecting a position of a mark formed on an object, by providing plural peaks in an image density distribution, wherein the image of the object having the mark is picked up to provide an image signal which in turn is processed to provide an integrated image-density distribution of the image in a predetermined direction and wherein the position of the mark is detected on the basis of the plural peaks in the integrated image-density distribution.

REFERENCES:
patent: 3988535 (1976-10-01), Hickman et al.
patent: 4253112 (1981-02-01), Doemens
patent: 4352125 (1982-09-01), Guth
patent: 4475122 (1984-10-01), Green
patent: 4550374 (1985-10-01), Meshman et al.

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