- 专利标题: Method for improving die area and power efficiency in high dynamic range digital microphones
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申请号: US16938734申请日: 2020-07-24
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公开(公告)号: US11637537B2公开(公告)日: 2023-04-25
- 发明人: Igor Mucha , Michael Perrott
- 申请人: INVENSENSE, INC.
- 申请人地址: US CA San Jose
- 专利权人: INVENSENSE, INC.
- 当前专利权人: INVENSENSE, INC.
- 当前专利权人地址: US CA San Jose
- 代理机构: Amin, Turocy & Watson, LLP
- 主分类号: H03G3/30
- IPC分类号: H03G3/30 ; H03F3/68 ; H04R3/04 ; H04R29/00
摘要:
Exemplary multipath digital microphones described herein can comprise exemplary embodiments of automatic gain control and multipath digital audio signal digital signal processing chains, which allow low power and die size to be achieved as described herein, while still providing a high DR digital microphone systems. Further non-limiting embodiments can facilitate switching between multipath digital audio signal digital signal processing chains while minimizing audible artifacts associated with either the change in the gain automatic gain control amplifiers switching between multipath digital audio signal digital signal processing chains.
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