Video probe aligning of object to be acted upon

Details Video probe aligning of object to be acted upon Video probe aligning of object to be acted upon

1987-11-02

1990-05-08

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358106, 358107, H04N 718

Patent

active

049243047

ABSTRACT:
An aligning system includes an object to be acted upon at predetermined locations, such as a circuit board to receive solder paste. There is a device, such as a stencil, characterized by the pattern for acting upon the object. A video probe is arranged to look at both the device and the object for providing image signals representative of both. A comparator compares the image signals to provide an error signal representative of misalignment between the device and object. A positioner responsive to the error signal relatively positions the device and object to reduce the error. An operator causes the device to operate upon the object at the predetermined locations.

REFERENCES:
patent: 4672437 (1987-06-01), Casper
patent: 4686565 (1987-08-01), Ando
patent: 4737845 (1988-04-01), Susuki

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