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:
Mar. 03, 1992
Filed:
Dec. 22, 1988
Applicant:
Inventors:
Richard E Howard, Highland Park, NJ (US);
Daniel B Schwartz, Cambridge, MA (US);
Assignee:
AT&T Bell Laboratories, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06G / ; G06K / ;
U.S. Cl.
CPC ...
364807 ; 307201 ; 382 14 ; 382 30 ; 395 27 ;
Abstract
A circuit for realizing controllable analog weights as used, for example, in template matching circuits. Analog weights are obtained by storing charge on two primary capacitors and by controlling the potential difference between the two primary capacitors. The control of charge on the two capacitors is effected with a bridging connection between the two primary capacitors. In one embodiment, the bridging connection contains two switches and an MOS transistor.