公开(公告)号：US20240422479A1

公开(公告)日：2024-12-19

申请号：US18334795

申请日：2023-06-14

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Zhengyi XU

IPC: H04R9/02 ,  H04R29/00

Abstract: An audio system may include an audio transducer, a thermal protection subsystem configured to protect the audio transducer from overheating, and a control subsystem communicatively coupled to the thermal protection subsystem and configured to receive an audio signal for playback at the audio transducer, determine an audio heating metric indicative of a predicted effect of the audio signal on the audio transducer, and control operation of the thermal protection subsystem based on the audio heating metric.

公开(公告)号：US20190333498A1

公开(公告)日：2019-10-31

申请号：US16393465

申请日：2019-04-24

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Zhengyi XU

IPC: G10L15/08 ,  G10L15/22 ,  G10L25/54

Abstract: The application describe a data processing system and associated methods for processing received speech data. The data processing system comprises: a classification unit configured to receive data derived from an audio signal and, based on the received data, to determine a classification state of an acoustic environment; wherein access to a subsequent processing unit is controlled based on the classification state of the acoustic environment. The classification state may be derived based on a pre-trained model, wherein the representation comprises a representation of the direct to reverberant energy (DRR) of the audio signal.

公开(公告)号：US20240385675A1

公开(公告)日：2024-11-21

申请号：US18320415

申请日：2023-05-19

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Chris RATTRAY ,  Zhengyi XU ,  Miles K. ROBERTO

IPC: G06F1/3234 ,  G06F1/3206 ,  H04R3/00

Abstract: A power management system for managing power consumption of a digital signal processor (DSP) that implements a protection system, the power management system comprising: a power management block configured to: detect a parameter indicative of a power of an input signal to the DSP; compare the detected parameter to a threshold; and responsive to a determination that the detected parameter is less than the threshold, cause one or more processing blocks of the DSP to enter a low power mode of operation.

公开(公告)号：US20220358909A1

公开(公告)日：2022-11-10

申请号：US17868172

申请日：2022-07-19

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Zhengyi XU

IPC: G10L15/08 ,  G10L15/22 ,  G10L25/54

Abstract: The application describe a data processing system and associated methods for processing received speech data. The data processing system comprises: a classification unit configured to receive data derived from an audio signal and, based on the received data, to determine a classification state of an acoustic environment; wherein access to a subsequent processing unit is controlled based on the classification state of the acoustic environment. The classification state may be derived based on a pre-trained model, wherein the representation comprises a representation of the direct to reverberant ratio (DRR) of the audio signal.

公开(公告)号：US20250071493A1

公开(公告)日：2025-02-27

申请号：US18442902

申请日：2024-02-15

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Roberto NAPOLI ,  Philip B.J. CLARKIN ,  Zhengyi XU ,  Chris RATTRAY ,  Edward CRANEY

IPC: H04R29/00

Abstract: An audio system may include a plurality of transducers, a temperature estimator, and a thermal control subsystem. The temperature estimator may be configured to monitor physical quantities associated with a plurality of transducers and based on the physical quantities, determine an estimated temperature associated with a first transducer of the plurality of transducers. The thermal control subsystem may be configured to generate an output signal based on an input signal, the output signal for driving the plurality of transducers and control the output signal based on the estimated temperature.

公开(公告)号：US20230199384A1

公开(公告)日：2023-06-22

申请号：US17735419

申请日：2022-05-03

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Miles K. ROBERTO ,  Chris RATTRAY ,  Zhengyi XU ,  Philip B.J. CLARKIN

IPC: H04R3/00 ,  H04R29/00 ,  H04R3/04 ,  G01K3/10

CPC classification number: H04R3/007 ,  H04R29/001 ,  H04R3/04 ,  G01K3/10 ,  H04R2430/01

Abstract: A system may include a first input configured to receive a playback signal to be played back to a transducer, a second input configured to receive temperature information associated with the transducer, and a thermal-controlled gain element configured to determine a sub-band gain to be applied to a selected frequency band of the playback signal, wherein the thermal-controlled gain element determines the gain based on the temperature information and apply the sub-band gain to the selected frequency band.

公开(公告)号：US20180211683A1

公开(公告)日：2018-07-26

申请号：US15934182

申请日：2018-03-23

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Zhengyi XU

IPC: G10L21/0388 ,  H04R3/00 ,  G10L21/0232 ,  G10L21/0216

CPC classification number: G10L21/0388 ,  G10L21/0216 ,  G10L21/0232 ,  G10L2021/02165 ,  G10L2021/02166 ,  H04R3/005 ,  H04R2499/11

Abstract: A sound processing circuit comprises a first input for receiving a first input signal, and a second input for receiving a second input signal. A first adaptive filter receives the first input signal, and an error calculation block calculates an error between the second input signal and the output of the first adaptive filter, and outputting an error signal. A second adaptive filter receives the error signal, and an output calculation block subtracts an output of the second adaptive filter from the first input signal to generate an output signal. The adaptation of first and second adaptive filters is controlled based on a magnitude coherence between the first and second input signals.