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:
Aug. 14, 2018
Filed:
Oct. 03, 2017
Stmicroelectronics S.r.l., Agrate Brianza, IT;
Stmicroelectronics (Shenzhen) R&d Co. Ltd., Shenzhen, CN;
XiangSheng Li, Shenzhen, CN;
Cristiano Meroni, Milan, IT;
Mei Yang, Shenzhen, CN;
Xian Feng Xiong, Shenzhen, CN;
STMicroelectronics (Shenzhen) R&D Co., Ltd., Shenzhen, CN;
STMicroelectronics S.r.l., Agrate Brianza (MB), IT;
Abstract
A circuit can be used in a speaker system. The circuit includes an amplifier with an output configured to be coupled to a speaker. An offset comparator has an input coupled the output of the amplifier and is configured to provide an offset control signal. A digital circuit has a first input coupled to an output of the offset comparator, a second input configured to receive an amplifier control signal, a third input configured to receive a play control signal, and an output configured to provide a forced mute signal that can be used to control the amplifier.