Invention Grant
US09456274B2 Digital electronic interface circuit for an acoustic transducer, and corresponding acoustic transducer system
有权
用于声学换能器的数字电子接口电路,以及相应的声学换能器系统
- Patent Title: Digital electronic interface circuit for an acoustic transducer, and corresponding acoustic transducer system
- Patent Title (中): 用于声学换能器的数字电子接口电路,以及相应的声学换能器系统
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Application No.: US13936096Application Date: 2013-07-05
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Publication No.: US09456274B2Publication Date: 2016-09-27
- Inventor: Martino Zerbini , Luca Molinari
- Applicant: STMICROELECTRONICS S.R.L.
- Applicant Address: IT Agrate Brianza
- Assignee: STMICROELECTRONICS S.R.L.
- Current Assignee: STMICROELECTRONICS S.R.L.
- Current Assignee Address: IT Agrate Brianza
- Agency: Seed IP Law Group PLLC
- Priority: ITTO2012A0987 20121114
- Main IPC: H04B1/00
- IPC: H04B1/00 ; H04R3/00 ; H03G3/00 ; H04R19/00 ; H04R25/00

Abstract:
A interface circuit for an acoustic transducer provided with a first detection structure and a second detection structure has: a first input and a second input; a first processing path and a second processing path coupled, respectively, to the first input and second input and supply a first processed signal and a second processed signal; and a recombination stage, which supplies a mixed signal by combining the first processed signal and the second processed signal with a respective weight that is a function of a first level value of the first processed signal. The first and second inputs receive a respective detection signal associated, respectively, to the first detection structure and to the second detection structure of the acoustic transducer; and an output stage the first processed signal, the second processed signal or the mixed signal, on the basis of a second level value of the first processed signal.
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