Invention Grant
- Patent Title: Device and method for driving speaker
- Patent Title (中): 用于驱动扬声器的装置和方法
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Application No.: US11194679Application Date: 2005-08-02
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Publication No.: US08155353B2Publication Date: 2012-04-10
- Inventor: Hideaki Kushida , Hiroshi Saito
- Applicant: Hideaki Kushida , Hiroshi Saito
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- Priority: JPP2004-228272 20040804
- Main IPC: H03F99/00
- IPC: H03F99/00 ; H04R3/00
Abstract:
Distortion caused in the voltage of an audio signal due to a back electromotive force generated due to loads in a speaker is detected, the detected distorted voltage is eliminated from the voltage of the audio signal, and the audio signal without the distorted voltage is amplified and given to the speaker.
Public/Granted literature
- US20060029238A1 Device and method for driving speaker Public/Granted day:2006-02-09
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