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公开(公告)号：US12301261B2
公开(公告)日：2025-05-13
申请号：US17804616
申请日：2022-05-31
Applicant: INVENSENSE, INC.
Inventor： Michael Perrott
Abstract: Exemplary multipath digital microphone described herein can comprise exemplary embodiments of adaptive ADC range multipath digital microphones, which allow low power to be achieved for amplifiers or gain stages, as well as for exemplary adaptive ADCs in exemplary multipath digital microphone arrangements described herein, while still providing a high DR digital microphone systems. Further non-limiting embodiments can comprise an exemplary glitch removal component configured to minimize audible artifacts associated with the change in the gain of the exemplary adaptive ADCs.
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公开(公告)号：US20220294466A1
公开(公告)日：2022-09-15
申请号：US17804616
申请日：2022-05-31
Applicant: INVENSENSE, INC.
Inventor： Michael Perrott
Abstract: Exemplary multipath digital microphone described herein can comprise exemplary embodiments of adaptive ADC range multipath digital microphones, which allow low power to be achieved for amplifiers or gain stages, as well as for exemplary adaptive ADCs in exemplary multipath digital microphone arrangements described herein, while still providing a high DR digital microphone systems. Further non-limiting embodiments can comprise an exemplary glitch removal component configured to minimize audible artifacts associated with the change in the gain of the exemplary adaptive ADCs.
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公开(公告)号：US10393522B2
公开(公告)日：2019-08-27
申请号：US15265740
申请日：2016-09-14
Applicant: InvenSense, Inc.
Inventor： Alireza Shirvani , Michael Perrott
IPC: G01C19/56
Abstract: A device includes a proof mass of a sensor, capacitive elements, an electrode circuitry, a time multiplexing circuitry, a sense circuitry, and a force feedback circuitry. The proof mass moves from a first position to a second position responsive to an external actuation. The capacitive elements change capacitive charge in response thereto. The electrode circuitry coupled to the capacitive elements generates a charge signal. The time multiplexing circuitry pass the charge signal during a sensing time period and prevents the charge signal from passing through during a forcing time period. The sense circuitry generates a sensed signal from the charge signal. The force feedback circuitry applies a charge associated with the sensed signal to the electrode circuitry during the forcing time period. The electrode circuitry applies the charge received from the force feedback circuitry to the capacitive elements, moving the proof mass from the second position to another position.
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4.发明公开公开(公告)号：US20230246617A1
公开(公告)日：2023-08-03
申请号：US18298065
申请日：2023-04-10
Applicant: INVENSENSE, INC.
Inventor： Igor Mucha , Michael Perrott
CPC classification number: H03G3/3005 , H03F3/68 , H04R3/04 , H04R29/004 , H03F2200/171 , H03G2201/103 , H03F2200/375 , H03F2200/165 , H03F2200/03
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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5.发明授权公开(公告)号：US11637537B2
公开(公告)日：2023-04-25
申请号：US16938734
申请日：2020-07-24
Applicant: INVENSENSE, INC.
Inventor： Igor Mucha , Michael Perrott
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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Patent Agency Ranking
公开(公告)号：US10852135B2
公开(公告)日：2020-12-01
申请号：US16514368
申请日：2019-07-17
Applicant: InvenSense, Inc.
Inventor： Alireza Shirvani , Michael Perrott
IPC: G01C19/56
Abstract: A device includes a proof mass of a sensor, capacitive elements, an electrode circuitry, a time multiplexing circuitry, a sense circuitry, and a force feedback circuitry. The proof mass moves from a first position to a second position responsive to an external actuation. The capacitive elements change capacitive charge in response thereto. The electrode circuitry coupled to the capacitive elements generates a charge signal. The time multiplexing circuitry pass the charge signal during a sensing time period and prevents the charge signal from passing through during a forcing time period. The sense circuitry generates a sensed signal from the charge signal. The force feedback circuitry applies a charge associated with the sensed signal to the electrode circuitry during the forcing time period. The electrode circuitry applies the charge received from the force feedback circuitry to the capacitive elements, moving the proof mass from the second position to another position.
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公开(公告)号：US20200162099A1
公开(公告)日：2020-05-21
申请号：US16673484
申请日：2019-11-04
Applicant: INVENSENSE, INC.
Inventor： Michael Perrott
Abstract: Exemplary multipath digital microphone described herein can comprise exemplary embodiments of adaptive ADC range multipath digital microphones, which allow low power to be achieved for amplifiers or gain stages, as well as for exemplary adaptive ADCs in exemplary multipath digital microphone arrangements described herein, while still providing a high DR digital microphone systems. Further non-limiting embodiments can comprise an exemplary glitch removal component configured to minimize audible artifacts associated with the change in the gain of the exemplary adaptive ADCs.
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公开(公告)号：US20210091785A1
公开(公告)日：2021-03-25
申请号：US17114087
申请日：2020-12-07
Applicant: INVENSENSE, INC.
Inventor： Michael Perrott
IPC: H03M3/00 , G06F1/3234 , H04R17/02 , G06F1/324 , H04W52/02
Abstract: An audio activity detector device is disclosed. The audio activity detector device comprises a closed loop feedback regulating circuit that supplies an input signal representative of a time-varying voltage signal to a quantizer circuit, wherein the quantizer circuit, as a function of the input signal, converts the input signal to a quantizer discrete-time signal; a first circuit that, as a function of the discrete-time signal, determines a key quantizer statistic value for the quantizer discrete-time signal; and a second circuit that, as a function of the key quantizer statistic value, determines a signal statistic value for the input signal and a gain control value.
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公开(公告)号：US10892772B2
公开(公告)日：2021-01-12
申请号：US16541869
申请日：2019-08-15
Applicant: INVENSENSE, INC.
Inventor： Michael Perrott
IPC: H03M3/00 , G06F1/3234 , H04R17/02 , G06F1/324 , H04W52/02
Abstract: An audio activity detector device is disclosed. The audio activity detector device comprises a closed loop feedback regulating circuit that supplies an input signal representative of a time-varying voltage signal to a quantizer circuit, wherein the quantizer circuit, as a function of the input signal, converts the input signal to a quantizer discrete-time signal; a first circuit that, as a function of the discrete-time signal, determines a key quantizer statistic value for the quantizer discrete-time signal; and a second circuit that, as a function of the key quantizer statistic value, determines a signal statistic value for the input signal and a gain control value.
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公开(公告)号：US10855308B2
公开(公告)日：2020-12-01
申请号：US16673484
申请日：2019-11-04
Applicant: INVENSENSE, INC.
Inventor： Michael Perrott
Abstract: Exemplary multipath digital microphone described herein can comprise exemplary embodiments of adaptive ADC range multipath digital microphones, which allow low power to be achieved for amplifiers or gain stages, as well as for exemplary adaptive ADCs in exemplary multipath digital microphone arrangements described herein, while still providing a high DR digital microphone systems. Further non-limiting embodiments can comprise an exemplary glitch removal component configured to minimize audible artifacts associated with the change in the gain of the exemplary adaptive ADCs.
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