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:
Sep. 01, 1998
Filed:
Sep. 26, 1996
Derek Bray, Los Altos, CA (US);
Exar Corporation, Fremont, CA (US);
Abstract
An improved peak detector for an audio limiter is disclosed where the audio limiter comprises preferably a voltage controlled amplifier and the feedback detector in a feedback arrangement. The peak detector has a resistive capacitive load and either charges or discharges more rapidly when the difference between the output of the peak detector and the output of the voltage controlled amplifier increases. As a result, over much of the range of operation of that difference, the charging or discharging current is linear with the output of the amplifier to provide a constant transconductance gain. However, when the difference exceeds a predetermined maximum, the circuit limits that current, thereby, decreasing the transconductance gain of the circuit.