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:
Apr. 16, 1991
Filed:
Dec. 07, 1988
Reginald Cyr, Santa Barbara, CA (US);
United States of America, Washington, DC (US);
Abstract
A transponder that responds differently to two different input signals. The first input signal is at a first frequency. The first input signal is detected by a first powered detector that operates at the first frequency. The transponder responses in a first mode to the first input signal. The second input signal consists of short pulses at the first frequency and at a second frequency. The transponder responds to short pulses at the first frequency by powering a second detector. The first and second detectors then detect the second input signal. The transponder responds in a second mode to the second input signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile