Invention Grant
- Patent Title: Digital silicon microphone with configurable sensitivity, frequency response and noise transfer function
-
Application No.: US15244858Application Date: 2016-08-23
-
Publication No.: US09936304B2Publication Date: 2018-04-03
- Inventor: Elmar Bach , Dietmar Straeussnigg , Andreas Wiesbauer
- Applicant: Infineon Technologies AG
- Applicant Address: DE Neubiberg
- Assignee: INFINEON TECHNOLOGIES AG
- Current Assignee: INFINEON TECHNOLOGIES AG
- Current Assignee Address: DE Neubiberg
- Agency: Slater Matsil, LLP
- Main IPC: H04R3/00
- IPC: H04R3/00 ; H04R19/00 ; G10L21/0208 ; H04R19/04 ; H04R3/04 ; H03M3/00
Abstract:
In some embodiments, a microphone system includes a multi-bit delta-sigma modulator configured to be coupled to a microphone and configured to covert an output of the microphone into a first digital signal with a multi-bit resolution at a first output of the multi-bit delta-sigma modulator. The microphone system also includes a digital noise shaper coupled to the first output of the multi-bit delta-sigma modulator, and configured to convert a multi-bit digital input of the digital noise shaper into a one-bit digital signal.
Public/Granted literature
- US20180063644A1 Digital Silicon Microphone with Configurable Sensitivity, Frequency Response and Noise Transfer Function Public/Granted day:2018-03-01
Information query
