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:
Aug. 12, 1997
Filed:
Jan. 26, 1996
Applicant:
Inventors:
Jerry W Culpepper, Garland, TX (US);
John D Markus, Plano, TX (US);
Lawrence M Smith, Lewisville, TX (US);
Zhaoliang Chen, Dallas, TX (US);
Assignee:
Electronic Tracking Systems, Inc., Dallas, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q / ;
U.S. Cl.
CPC ...
342374 ; 342101 ; 342386 ; 342418 ;
Abstract
A method and apparatus for locating and tracking a portable transmitter that may be deposited with currency or other items desired to be tracked, comprising a doppler antenna array, analog antenna switching, radio frequency and intermediate frequency circuitry and a digital signal processor, exhibiting increasing sensitivity, accuracy, and range.
Culpepper, Jerry. (1997). Beacon signal receiving system (U.S. Patent No. 5657026). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5657026
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile