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. 27, 2007
Filed:
Jan. 07, 2004
Geoffrey B. Jackson, Campbell, CA (US);
Saleel V. Awsare, Redwood City, CA (US);
Lawrence D. Engh, Redwood City, CA (US);
Peter Holzmann, Campbell, CA (US);
Oliver C. Kao, Cupertino, CA (US);
Carl R. Palmer, Los Gatos, CA (US);
Aditya Raina, Santa Clara, CA (US);
Geoffrey B. Jackson, Campbell, CA (US);
Saleel V. Awsare, Redwood City, CA (US);
Lawrence D. Engh, Redwood City, CA (US);
Peter Holzmann, Campbell, CA (US);
Oliver C. Kao, Cupertino, CA (US);
Carl R. Palmer, Los Gatos, CA (US);
Aditya Raina, Santa Clara, CA (US);
Winbond Electronics Corporation, Hsinchu, TW;
Abstract
A multilevel analog recording and playback system is described. The analog recording and playback system provides a variety of analog processing functions to enhance system level integration. The analog recording and playback system is an fully configurable integrated device that includes a plurality of signal paths, a microphone automatic gain control ('AGC') circuit, volume control and filtering circuit, speaker driver circuit, gain selectable analog input, auxiliary input and output paths, configurable summation amplifiers having mixing features, multilevel analog memory storage array, and user selectable programming duration.