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:
Nov. 09, 1982
Filed:
Dec. 04, 1980
Applicant:
Inventor:
James H Frazier, Aurora, CO (US);
Assignee:
Honeywell, Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
250204 ; 354 25 ;
Abstract
Range finding equipment for use with optical systems utilizing a small number of radiation detectors positioned to receive radiation in first and second patterns from a remote object. The logarithm of the ratio of the output of a first and second detector are compared with the logarithm of the ratio of the output of a third and fourth detector to determine which has the largest absolute magnitude. The system operates to control the range finding circuitry with the largest signal thus obtained.
Frazier, James. (1982). Steered low cost auto focus system (U.S. Patent No. 4358674). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4358674
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile