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. 27, 2016
Filed:
Dec. 09, 2011
Dong-hyun Lim, Suwon-si, KR;
Dong-hyun Lim, Suwon-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Abstract
An audio signal outputting apparatus and method for adjusting an output gain of an audio signal are provided. The audio signal outputting apparatus includes: a pulse width modulation (PWM) unit which generates a carrier signal, compares a signal level of the carrier signal with a signal level of an audio signal, and generates a PWM signal based on a result of the comparison; a controller which, based to a level of the audio signal, controls the PWM unit to change a signal shape of the carrier signal to adjust a duration of a logic high level of the PWM signal; and a switching power unit which amplifies the PWM signal generated by the PWM unit and outputs the amplified PWM signal.