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:
Apr. 28, 2020
Filed:
Jun. 06, 2018
Realtek Semiconductor Corporation, Hsinchu, TW;
Cheng-Pin Chang, Taipei, TW;
Tsung-Peng Chuang, Hsinchu County, TW;
REALTEK SEMICONDUCTOR CORPORATION, Hsinchu, TW;
Abstract
An audio playback device that includes an audio receiver module, a loudspeaker module and an audio control circuit is provided. The audio control circuit includes an interface and a gain adjusting module. The interface receives an audio signal from an audio source. Under a first operation mode, the audio signal is transmitted only to the audio receiver module to be playback. Under a second operation mode, the audio signal is transmitted to the audio receiver module and to the loudspeaker module to be playback. The gain adjusting module includes a temperature sensing circuit to sense a temperature of the audio receiver module and a gain adjusting circuit electrically coupled between the audio interface and the audio receiver module to adjust a gain of the audio signal according to the temperature.