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:
Feb. 04, 2003
Filed:
Feb. 24, 1998
Kok Fah Lee, Singapore, SG;
Thomson Licensing, S.A., Boulogne-Billancourt, FR;
Abstract
In order to quickly decrease voltage applied to a mute pin of an audio amplifier circuit of an electronic appliance, an end of a capacitor connected to the mute pin is connected to a discharge circuit which is fired on when the electronic appliance is switched from on to off or stand-by by exploiting two power supply sources of the appliance. The voltage output of one of them decreases faster than the other one when the electronic appliance is switched off. An active element of the discharge circuit has an electrode coupled to the first source and an other electrode coupled to the second sources so that the active element is fired on as soon as the difference between the two output voltages reaches a threshold.