Invention Grant
US08901999B2 Audio-output amplifier circuit for audio device, audio device, electronic device including audio device, and output control method for audio device
有权
用于音频设备的音频输出放大器电路，音频设备，包括音频设备的电子设备以及用于音频设备的输出控制方法
- Patent Title: Audio-output amplifier circuit for audio device, audio device, electronic device including audio device, and output control method for audio device
- Patent Title (中): 用于音频设备的音频输出放大器电路，音频设备，包括音频设备的电子设备以及用于音频设备的输出控制方法
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Application No.: US13652542Application Date: 2012-10-16
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Publication No.: US08901999B2Publication Date: 2014-12-02
- Inventor: Ryuichi Araki
- Applicant: Ryuichi Araki
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Cooper & Dunham LLP
- Priority: JP2011-235994 20111027
- Main IPC: H03F1/14
- IPC: H03F1/14
Abstract:
An audio-output amplifier circuit for an audio device includes an output amplifier and a switching element connected between an amplifier-output terminal of the output amplifier and ground, to short-circuit the amplifier-output terminal of the output amplifier after transition to ground-level voltage is finished.
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