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:
Dec. 10, 1985
Filed:
Mar. 07, 1985
Applicant:
Inventors:
C James Corris, Shenandoah, GA (US);
Blaine E Beck, Peachtree City, GA (US);
Assignee:
Cellutron Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q / ;
U.S. Cl.
CPC ...
179 / ; 179 / ; 455 89 ; 455117 ; 455126 ;
Abstract
A circuit for providing a constant current to an output stage of a cordless telephone transmitter using AC power lines as a transmission medium to maintain the RF component on the AC lines to within regulated limits. The RF component is sensed to provide a control signal to a voltage-responsive capacitor in a tuned circuit connected to a tuned coupling transformer between a modulating circuit and the transmitter output amplifier. When the RF component exceeds the current limit of 90 mA, the coupling transformer is detuned to maintain the RF current in the power lines to within the regulated limits.