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:
Jun. 30, 2009
Filed:
May. 21, 2007
Huaijin Chen, Los Gatos, CA (US);
Marcellus Chen, Fremont, CA (US);
Ansuya P. Bhatt, Cupertino, CA (US);
Raminder Jit Singh, San Jose, CA (US);
Huaijin Chen, Los Gatos, CA (US);
Marcellus Chen, Fremont, CA (US);
Ansuya P. Bhatt, Cupertino, CA (US);
Raminder Jit Singh, San Jose, CA (US);
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
An audio amplifier with an integrated asymmetric charge pump is provided. The audio amplifier receives VDD and VSS as power supply signals. The integrated charge pump is arranged to provide VSS from VDD, such that VSS is a negative voltage that is lower in magnitude than VDD.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile