Invention Grant
US08718287B2 Method and system for controlling a maximum signal level output to headphones coupled to a wireless device
有权
用于控制输出到耦合到无线设备的耳机的最大信号电平的方法和系统
- Patent Title: Method and system for controlling a maximum signal level output to headphones coupled to a wireless device
- Patent Title (中): 用于控制输出到耦合到无线设备的耳机的最大信号电平的方法和系统
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Application No.: US13450349Application Date: 2012-04-18
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Publication No.: US08718287B2Publication Date: 2014-05-06
- Inventor: Cyril Martin
- Applicant: Cyril Martin
- Applicant Address: CA Waterloo
- Assignee: BlackBerry Limited
- Current Assignee: BlackBerry Limited
- Current Assignee Address: CA Waterloo
- Agency: Novak Druce Connolly Bove + Quigg LLP
- Main IPC: H04R29/00
- IPC: H04R29/00
Abstract:
A method for controlling a maximum signal level output to headphones of a wireless device is provided. The method includes: determining an impedance of the headphones; determining a carrier specific maximum signal level for headphones having the impedance; and, adjusting an audio amplifier of the wireless device coupled to the headphones to restrict the maximum signal level output to the headphones to the carrier specific maximum signal level.
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