The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 01, 1982
Filed:
Aug. 29, 1980
Frank H Blitchington, Richmond, VA (US);
Western Electric Co., Inc., New York, NY (US);
Abstract
In the process of aligning an image sensor (33) with a datum mark (23) on an artmaster (21), each of a plurality of elements of the sensor accumulate a charge based on the level of light sensed. The elements of the sensor (33) are repetitively scanned to obtain data pulses relating to the charges on the elements as an indication of the level of sensed light. Data pulses from selected elements of the sensor (33) are counted and compared to develop a signal representative of, and to facilitate visual indication of, the alignment or misalignment of the sensor (33) and the datum mark (23). If the sensor (33) and the datum mark (23) are misaligned, the developed signal facilitate control of servo motors (28 and 29) to move the sensor (33) into alignment with the datum mark (23). Data pulses derived from all elements of the sensor (33) are used to facilitate an electronic reproduction on a display board (40) of the position of the datum mark (23 ) relative to the sensor.