公开(公告)号：US20250023573A1

公开(公告)日：2025-01-16

申请号：US18353094

申请日：2023-07-16

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Jianqi Chen ,  Jaiminkumar Mehta ,  Bhoodev Kumar ,  John L. Melanson

IPC: H03L7/099 ,  H03L7/093

Abstract: Methods and systems for determining clock signals for audio processing using different operating modes are provided. In one aspect, a transition control word is determined to transition from a first control word for a first operating mode to a second control word for the second operating mode. The transition control word may be used to process the received audio signal while transitioning between the operating modes. After the transition, the second control word may be used to process the received audio signal using the second operating mode. The transition control word may be used to transition between various aspects of the operating modes, including different frequencies or resolutions, control systems, power levels, and more.

公开(公告)号：US11489534B1

公开(公告)日：2022-11-01

申请号：US17498183

申请日：2021-10-11

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Seung Bae Lee ,  Sunny Bhagia ,  Jaiminkumar Mehta ,  Anindya Bhattacharya ,  John L. Melanson

IPC: H03M1/06 ,  H03M1/08

Abstract: Digital-to-analog converter (DAC) architecture, comprising: a matrix DAC array comprising a plurality of cells arranged in a first dimension and a second dimension, each cell comprising a local decoder configured to transition the cell between at least two states; and decoding circuitry configured to: receive a digital input signal; and control the plurality of local decoders based on a received digital input signal, wherein each incremental change in the digital input signal results in a transition of a single cell of the plurality of cells such that the plurality of cells transition in sequence, the sequence of transitions of the plurality of cells defining a path through the DAC array; wherein when the path proceeds in the first dimension, the path proceeds to an adjacent cell of the plurality of cells at least 50% of the time; and wherein when the path proceeds in the second dimension, the path proceeds to an adjacent cell of the plurality of cells at least 50% of the time.

公开(公告)号：US12261611B2

公开(公告)日：2025-03-25

申请号：US18353094

申请日：2023-07-16

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Jianqi Chen ,  Jaiminkumar Mehta ,  Bhoodev Kumar ,  John L. Melanson

IPC: H03L7/099 ,  H03L7/093

Abstract: Methods and systems for determining clock signals for audio processing using different operating modes are provided. In one aspect, a transition control word is determined to transition from a first control word for a first operating mode to a second control word for the second operating mode. The transition control word may be used to process the received audio signal while transitioning between the operating modes. After the transition, the second control word may be used to process the received audio signal using the second operating mode. The transition control word may be used to transition between various aspects of the operating modes, including different frequencies or resolutions, control systems, power levels, and more.

公开(公告)号：US12047757B2

公开(公告)日：2024-07-23

申请号：US17749473

申请日：2022-05-20

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Viral Parikh ,  Jaiminkumar Mehta ,  Ryan Hellman

IPC: H04R3/04 ,  G01R19/00 ,  G01R23/16 ,  G01R23/165 ,  G01R27/02 ,  G01R27/08 ,  H03F1/34 ,  H03F3/183 ,  H03F3/217 ,  H04R3/00 ,  H04R3/08 ,  H04R9/02 ,  H04R9/06 ,  H04R29/00

CPC classification number: H04R3/04 ,  G01R19/0007 ,  G01R23/16 ,  G01R23/165 ,  G01R27/02 ,  G01R27/08 ,  H03F1/34 ,  H03F3/183 ,  H03F3/217 ,  H04R3/002 ,  H04R3/08 ,  H04R9/02 ,  H04R9/06 ,  H04R29/001 ,  H04R2400/13

Abstract: A method may include measuring a physical quantity associated with a load driven by an amplifier, generating a windowing function having a variable length and based on a number of samples of the physical quantity to be processed, applying the windowing function to the physical quantity, performing a transform on the physical quantity as filtered by the windowing function, and determining a characteristic of the load based on the transform.