Invention Grant
- Patent Title: Method for improving die area and power efficiency in high dynamic range digital microphones
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Application No.: US16938734Application Date: 2020-07-24
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Publication No.: US11637537B2Publication Date: 2023-04-25
- Inventor: Igor Mucha , Michael Perrott
- Applicant: INVENSENSE, INC.
- Applicant Address: US CA San Jose
- Assignee: INVENSENSE, INC.
- Current Assignee: INVENSENSE, INC.
- Current Assignee Address: US CA San Jose
- Agency: Amin, Turocy & Watson, LLP
- Main IPC: H03G3/30
- IPC: H03G3/30 ; H03F3/68 ; H04R3/04 ; H04R29/00

Abstract:
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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