Invention Grant
US09131320B2 Audio device with a voice coil channel and a separately amplified telecoil channel
有权
具有音圈通道和单独放大的线圈通道的音频设备
- Patent Title: Audio device with a voice coil channel and a separately amplified telecoil channel
- Patent Title (中): 具有音圈通道和单独放大的线圈通道的音频设备
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Application No.: US14211468Application Date: 2014-03-14
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Publication No.: US09131320B2Publication Date: 2015-09-08
- Inventor: Ruchir M. Dave , Shaohai Chen
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Blakely, Sokoloff, Taylor & Zafman LLP
- Main IPC: H04R25/00
- IPC: H04R25/00 ; H04R3/00 ; H04M1/725
Abstract:
A portable audio device has a voice coil audio signal processor in which a desired audio content signal is combined with an anti-noise signal produced by an active noise cancellation block. A voice coil amplifier receives a volume setting and is coupled to an output of the voice coil audio signal processor. A speaker is coupled to an output of the voice coil amplifier. In addition, a telecoil audio signal processor also receives the desired audio content, and feeds a telecoil amplifier that receives a telecoil coupling strength setting, followed by a telecoil. Other embodiments are also described and claimed.
Public/Granted literature
- US20140198938A1 AUDIO DEVICE WITH A VOICE COIL CHANNEL AND A SEPARATELY AMPLIFIED TELECOIL CHANNEL Public/Granted day:2014-07-17
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