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.

Date of Patent:
Jan. 27, 1981

Filed:

Sep. 28, 1978
Applicant:
Inventors:

Steven Kos, Hazeldean, CA;

David R Baraff, Ottawa, CA;

Assignee:

Northern Telecom Limited, Montreal, CA;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ; H01J / ;
U.S. Cl.
CPC ...
358294 ; 358213 ; 2502 / ;
Abstract

A photoconductive device for imaging a linear object has a plurality of photoconductive elements, extending in a line, on a substrate, with first and second patterns of electrical conductors, a pattern on each side of the line. Connections are made to the elements. The conductor patterns are formed as columns on one side of the line and as rows on the other side to provide connections between columns and elements and rows and elements such that the number of external connections is minimized. By applying a voltage to a column, and then connecting a detector current sequentially to each row, and repeating for each column, the current flowing through each element can be determined and a signal generated related to the illumination of each element. The elements can be a continuous bar of photoconductive material.


Find Patent Forward Citations

Loading…