Invention Grant
- Patent Title: Sound level control in responding to the estimated impedances indicating that the medium being an auditory canal and other than the auditory canal
- Patent Title (中): 响应于估计阻抗的声级控制，表示介质是耳道，而不是听道
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Application No.: US12367232Application Date: 2009-02-06
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Publication No.: US08385563B2Publication Date: 2013-02-26
- Inventor: Nicolas Veau , Laurent Le Faucheur
- Applicant: Nicolas Veau , Laurent Le Faucheur
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Michael A. Davis, Jr.; W. James Brady; Frederick J. Telecky, Jr.
- Priority: EP08290795 20080821
- Main IPC: H03G3/00
- IPC: H03G3/00 ; H03G5/00
Abstract:
A system and method for controlling a sound level of a mobile audio device are disclosed herein. In accordance with at least some embodiments, a system includes a transducer, a phase estimator, and a sound level control. The transducer converts an electrical signal applied to the transducer into audible sound. The phase estimator estimates a phase difference between a voltage and a current of the electrical signal applied to the transducer. The sound level control controls the loudness of sound produced by the transducer based, at least in part on the estimated phase difference.
Public/Granted literature
- US20100046772A1 SOUND LEVEL CONTROL Public/Granted day:2010-02-25
Information query
