Invention Grant
US09337829B2 Electronic device with body-biasing circuit for portable equipment with USB connector for headset
有权
电子设备带有用于耳机USB连接器的便携式设备的主体偏置电路
- Patent Title: Electronic device with body-biasing circuit for portable equipment with USB connector for headset
- Patent Title (中): 电子设备带有用于耳机USB连接器的便携式设备的主体偏置电路
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Application No.: US14343099Application Date: 2012-09-05
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Publication No.: US09337829B2Publication Date: 2016-05-10
- Inventor: Germano Nicollini , Marco Zamprogno
- Applicant: Germano Nicollini , Marco Zamprogno
- Applicant Address: CH Plan-les-Ouates
- Assignee: ST-ERICSSON SA
- Current Assignee: ST-ERICSSON SA
- Current Assignee Address: CH Plan-les-Ouates
- Agency: Coats & Bennett, PLLC
- Priority: EP11180174 20110906
- International Application: PCT/EP2012/067320 WO 20120905
- International Announcement: WO2013/034595 WO 20130314
- Main IPC: H03K3/01
- IPC: H03K3/01 ; H03K17/687 ; H03F1/52 ; H03F3/185 ; H03F3/30
Abstract:
An electronic USB or similar device 101 with a CMOS audio output stage 105 for driving, in a first mode, e.g., a headset via a port commonly used also in a second mode by a digital data transmission stage 103 for digital data and supply, the audio output stage P-channel transistor MP being switchably back-gate biased by a bias circuit 107 according to the operating mode to achieve high-voltage tolerance.
Public/Granted literature
- US20140218096A1 Electronic Device with Body-Biasing Circuit for Portable Equipment with USB Connector For Headset Public/Granted day:2014-08-07
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