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:
Feb. 13, 1996
Filed:
Jun. 24, 1993
Applicant:
Inventors:
David F Everett, Gambrills, MD (US);
John W Frech, Baltimore, MD (US);
Theodore Wright, Crownsville, MD (US);
Kelly M Rodriquez, Columbia, MD (US);
Assignee:
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340572 ; 34082554 ; 34087031 ; 435 91 ;
Abstract
An identification system with a reading device having a single turn transmission coil for continuously radiating alternating energy. A portable tag receives via a magnetic coupling, the energy from the reader and charges a storage capacitor to 5 volts. The capacitor is discharged rapidly during a time period less than the charging time period. This discharge of the capacitor powers a coded information transmission circuit during a small percentage of the duty cycle.