Invention Grant
- Patent Title: Volume control circuits for use in electronic devices and related methods and electronic devices
- Patent Title (中): 用于电子设备和相关方法和电子设备的音量控制电路
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Application No.: US11513719Application Date: 2006-08-31
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Publication No.: US08229137B2Publication Date: 2012-07-24
- Inventor: Eric Douglas Romesburg
- Applicant: Eric Douglas Romesburg
- Applicant Address: SE Lund
- Assignee: Sony Ericsson Mobile Communications AB
- Current Assignee: Sony Ericsson Mobile Communications AB
- Current Assignee Address: SE Lund
- Agency: Myers Bigel Sibley & Sajovec
- Main IPC: H03G3/00
- IPC: H03G3/00

Abstract:
Volume control circuits for use in electronic devices are provided. Some embodiments of the present invention provide volume control circuits for use in electronic devices. The volume control circuits include a gain circuit, a limiter circuit, a power measurement circuit and a gain adjustment circuit. The gain circuit is configured to receive an input audio signal and amplify the input audio signal based on a gain. The limiter circuit is configured to limit the amplified input audio signal based on a peak safety limit and output an output audio signal having a peak value based on the peak safety limit. The power measurement circuit is configured to measure a power level of the output audio signal. The power level has an associated power safety limit. The gain adjustment circuit is configured to adjust the gain of the gain circuit responsive to the measured power. Related methods and electronic devices are also provided herein.
Public/Granted literature
- US20080075304A1 Volume control circuits for use in electronic devices and related methods and electronic devices Public/Granted day:2008-03-27
Information query