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. 28, 2018
Filed:
Mar. 11, 2015
Huawei Technologies Co., Ltd., Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A terminal device includes: an access unit, connected between a headset or an audio speaker and a digital-to-analog converter, and configured for insertion of a detachable second power amplifier; a processor, configured to: detect whether the second power amplifier is inserted into the access unit, output a first digital signal when detecting that the second power amplifier is inserted, and output a second digital signal when detecting that the second power amplifier is not inserted; the digital-to-analog converter, connected to the processor, and configured to: when receiving the first digital signal, convert the first digital signal to a first analog signal, and send the first analog signal to the second power amplifier; and when receiving the second digital signal, convert the second digital signal to a second analog signal, and send the second analog signal to a first power amplifier.