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. 05, 1995
Filed:
Feb. 17, 1993
Applicant:
Inventors:
Kevin P D'Angelo, Dallas, TX (US);
Francis A Scherpenberg, Carrollton, TX (US);
Assignee:
Dallas Semiconductor Corporation, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M / ; G06G / ;
U.S. Cl.
CPC ...
327347 ; 327100 ; 327306 ;
Abstract
An integrate circuit companding amplifier for analog signals with digitally controlled gain. The expansion amplifier uses a square law with presentation of sign and the compression amplifier uses the inverse (square root law with preservation of sign). A digital potentiometer determines the gain, and peak detection plus feedback control of the potentiometer provides for automatic gain control. Three wire communication can program a fixed gain.
D'Angelo, Kevin. (1995). Integrated compander amplifier circuit with digitally controlled gain (U.S. Patent No. 5473279). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5473279
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile