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. 01, 1994
Filed:
Aug. 20, 1993
Applicant:
Inventors:
Govind Shah, Princeton Junction, NJ (US);
David G Shaw, Middletown Township, Monmouth County, NJ (US);
Donald G Chandler, Princeton, NJ (US);
Assignee:
United Parcel Service of America, Atlanta, GA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06K / ; G06K / ; G06K / ;
U.S. Cl.
CPC ...
382 48 ; 382-1 ; 382-8 ; 382 34 ;
Abstract
An optical target is acquired by an optical scanning system according to an in-band target frequency in an input signal from an optical scanning device. Both the in-band energy level and the out-of-band energy level of the input signal from the optical scanning device are determined. These two energy levels are compared and a possible detection of the target is determined according to this comparison. A minimum threshold of in-band energy is required in order for the possible detection to be confirmed.