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. 10, 1992
Filed:
Nov. 28, 1990
Applicant:
Inventor:
James W Dejmek, Lombard, IL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455136 ; 455137 ; 455273 ;
Abstract
A method and device are set forth for providing an improved audio waveform correction in a postdetection circuit in a radio frequency communication system. A device is described that utilizes at least two voltage-controlled resistors, at least three operational amplifiers, and selected resistors, as desired, to adjust amplification, as desired, of at least a first received audio signal with respect to at least a first input control voltage to obtain an adjusted first received audio signal, and combines the adjusted first received audio signal with an at least first voltage-selected waveform to provide an at least first corrected audio signal.