公开(公告)号：US09008344B2

公开(公告)日：2015-04-14

申请号：US13915767

申请日：2013-06-12

Applicant: Cirrus Logic, Inc.

Inventor： John L. Melanson ,  Eric Swanson

IPC: H04R9/08 ,  H04R1/04 ,  H04W52/02 ,  H04R1/02 ,  H04M1/00

CPC classification number: H04R3/005 ,  H04R1/04 ,  H04R1/1041 ,  H04R3/04 ,  H04R19/02 ,  H04R19/04 ,  H04R2400/01 ,  H04R2499/11 ,  H04W52/0251 ,  H04W52/0254 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164 ,  Y02D70/168

Abstract: In accordance with methods and systems of the present disclosure, a mobile device may include an enclosure adapted such that the enclosure is readily transported by a user of the mobile device, a speaker associated with the enclosure for generating sound, and a controller within the enclosure, communicatively coupled to the speaker. The controller may be configured to receive a signal from the speaker, the signal induced at least in part by sound incident on the speaker other than sound generated by the speaker and process the signal.

Abstract translation: 根据本公开的方法和系统，移动设备可以包括适于使得外壳容易地由移动设备的用户传输的外壳，与外壳相关联的用于产生声音的扬声器以及外壳内的控制器 通信地耦合到扬声器。 控制器可以被配置为从扬声器接收信号，所述信号至少部分地由入射在扬声器上的声音引起，而不是由扬声器产生的声音并且处理该信号。

公开(公告)号：US10225653B2

公开(公告)日：2019-03-05

申请号：US15675314

申请日：2017-08-11

Applicant: Cirrus Logic, Inc.

Inventor： John L. Melanson ,  Eric Swanson

IPC: H04R17/00 ,  H04R3/00 ,  H04R1/10 ,  H04R3/04 ,  H04R1/04 ,  H04W52/02 ,  H04R19/04 ,  H04R19/02

Abstract: In accordance with embodiments of the present disclosure, a device may include a piezoelectric speaker for generating sound, a microphone, and a controller communicatively coupled to the speaker and the microphone. The controller may be configured to receive a first signal from the piezoelectric speaker, the first signal induced at least in part by sound incident on the speaker other than sound generated by the piezoelectric speaker, receive a second signal from the microphone, the second signal induced by sound incident on the microphone, process at least one of the first signal and the second signal to determine at least one characteristic of sound incident upon at least one of the piezoelectric speaker and the microphone, and select at least one of the microphone and the piezoelectric speaker as a signal source for incident sound based on the at least one characteristic.

公开(公告)号：US09329614B1

公开(公告)日：2016-05-03

申请号：US13837830

申请日：2013-03-15

Applicant: Cirrus Logic, Inc.

Inventor： Prashanth Drakshapalli ,  John L. Melanson ,  Rod Holley ,  Thirumalai Rengachari ,  Ruoxin Jiang ,  Eric Swanson

IPC: G05F3/02 ,  G01R31/28 ,  G01R31/30 ,  G01R31/317 ,  H01L21/66

CPC classification number: G05F3/02 ,  G01R31/2875 ,  G01R31/2884 ,  G01R31/3004 ,  G01R31/31701 ,  H01L22/34

Abstract: In one embodiment a heating mechanism is provided with an integrated circuit for testing and calibration purposes. During production testing, heating elements may be activated in order to quickly bring an integrated circuit up to operating temperature for temperature testing or calibration. Once the operating test temperature has been reached, the circuit can be quickly and easily tested to show it is operable within the design temperature range and/or to obtain calibration data to correct for temperature drift. Calibration data may be used to create correction data, which may be stored within the integrated circuit. During normal operation, the correction data may be used to compensate for variations in operation due to temperature.

Abstract translation: 在一个实施例中，加热机构设置有用于测试和校准目的的集成电路。 在生产测试期间，可以激活加热元件，以便快速将集成电路带到工作温度进行温度测试或校准。 一旦达到了工作测试温度，该电路就可以快速方便地进行测试，以显示其在设计温度范围内可操作和/或获得校准数据以校正温度漂移。 可以使用校准数据来创建可以存储在集成电路内的校正数据。 在正常操作期间，可以使用校正数据来补偿由于温度导致的操作变化。

公开(公告)号：US20150003660A9

公开(公告)日：2015-01-01

申请号：US13915780

申请日：2013-06-12

Applicant: CIRRUS LOGIC, INC.

Inventor： John L. Melanson ,  Eric Swanson

IPC: H04R1/04

CPC classification number: H04R3/005 ,  H04R1/04 ,  H04R1/1041 ,  H04R3/04 ,  H04R19/02 ,  H04R19/04 ,  H04R2400/01 ,  H04R2499/11 ,  H04W52/0251 ,  H04W52/0254 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164 ,  Y02D70/168

Abstract: In accordance with methods and systems of the present disclosure, a mobile device may include an enclosure adapted such that the enclosure is readily transported by a user of the mobile device, a speaker associated with the enclosure for generating sound, and a controller within the enclosure, communicatively coupled to the speaker. The controller may be configured to receive a signal from the speaker, the signal induced at least in part by sound incident on the speaker other than sound generated by the speaker and process the signal.

公开(公告)号：US10225652B2

公开(公告)日：2019-03-05

申请号：US15488872

申请日：2017-04-17

Applicant: Cirrus Logic, Inc.

Inventor： John L. Melanson ,  Eric Swanson

IPC: H04R23/00 ,  H04R3/00 ,  H04R1/04 ,  H04W52/02 ,  H04R1/10 ,  H04R3/04 ,  H04R19/02 ,  H04R19/04

Abstract: In accordance with methods and systems of the present disclosure, a mobile device may include an enclosure adapted such that the enclosure is readily transported by a user of the mobile device, a speaker associated with the enclosure for generating sound, and a controller within the enclosure, communicatively coupled to the speaker. The controller may be configured to receive a signal from the speaker, the signal induced at least in part by sound incident on the speaker other than sound generated by the speaker and process the signal.

公开(公告)号：US09215532B2

公开(公告)日：2015-12-15

申请号：US13915780

申请日：2013-06-12

Applicant: Cirrus Logic, Inc.

Inventor： John L. Melanson ,  Eric Swanson

IPC: H04R9/08 ,  H04R19/04 ,  H04R1/04 ,  H04W52/02 ,  H04R3/00 ,  H04R3/04 ,  H04R19/02 ,  H04M1/00 ,  H04R1/10

CPC classification number: H04R3/005 ,  H04R1/04 ,  H04R1/1041 ,  H04R3/04 ,  H04R19/02 ,  H04R19/04 ,  H04R2400/01 ,  H04R2499/11 ,  H04W52/0251 ,  H04W52/0254 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164 ,  Y02D70/168

Abstract: In accordance with methods and systems of the present disclosure, a mobile device may include an enclosure adapted such that the enclosure is readily transported by a user of the mobile device, a speaker associated with the enclosure for generating sound, and a controller within the enclosure, communicatively coupled to the speaker. The controller may be configured to receive a signal from the speaker, the signal induced at least in part by sound incident on the speaker other than sound generated by the speaker and process the signal.

公开(公告)号：US20150222235A1

公开(公告)日：2015-08-06

申请号：US14612889

申请日：2015-02-03

Applicant: Cirrus Logic, Inc.

Inventor： Eric Swanson ,  John L. Melanson ,  John C. Tucker ,  Eric J. King

IPC: H03F1/02 ,  H03F3/217 ,  H04R1/00 ,  H03F3/185

CPC classification number: H02M3/1582 ,  H02M3/1588 ,  H03F1/0227 ,  H03F3/181 ,  H03F3/217

Abstract: A switching power stage for producing an output voltage to a load may include a power converter and a controller. The power converter may include a power inductor and plurality of switches arranged to sequentially operate in a plurality of switch configurations. The controller may be configured to, based on a measured parameter associated with the switching power stage, select a selected operational mode of the power converter from a plurality of operational modes, and sequentially apply switch configurations from the plurality of switch configurations to selectively activate or deactivate each of the plurality of switches in order to transfer electrical energy from an input source of the power converter to the load in accordance with the selected operational mode.A switching power stage for producing an output voltage to a load may include a power converter and a controller. The power converter may include a power inductor and plurality of switches arranged to sequentially operate in a plurality of switch configurations. The controller may be configured to, based at least on an input signal to the switching power stage, determine the differential output voltage to be driven at the load, and based on the differential output voltage to be driven at the load, apply a switch configuration from the plurality of switch configurations to selectively activate or deactivate each of the plurality of switches in order to generate the differential output voltage.A method may include sequentially applying a plurality of switch configurations in a power converter to selectively activate or deactivate each of the plurality of switches in order operate the power converter as a differential output buck converter, such that: during a charging phase of the power converter, the power inductor is coupled between (i) one of a first terminal of a power source and a second terminal of the power source and (ii) one of a first terminal of the output load and a second terminal of the output load; during a transfer phase of the power converter, at least one of the plurality of switches is activated in order to couple the power inductor between the first terminal of the output load and a second terminal of the output load; and the output voltage comprises a differential voltage between the first and second terminal of the output load.

公开(公告)号：US10116215B2

公开(公告)日：2018-10-30

申请号：US14612889

申请日：2015-02-03

Applicant: Cirrus Logic, Inc.

Inventor： Eric Swanson ,  John L. Melanson ,  John C. Tucker ,  Eric J. King

IPC: H02M3/158 ,  H03F1/02 ,  H03F3/181 ,  H03F3/217

Abstract: A switching power stage for producing an output voltage to a load may include a power converter and a controller. The power converter may include a power inductor and plurality of switches arranged to sequentially operate in a plurality of switch configurations. The controller may be configured to, based on a measured parameter associated with the switching power stage, select a selected operational mode of the power converter from a plurality of operational modes, and sequentially apply switch configurations from the plurality of switch configurations to selectively activate or deactivate each of the plurality of switches in order to transfer electrical energy from an input source of the power converter to the load in accordance with the selected operational mode.

公开(公告)号：US20140140560A1

公开(公告)日：2014-05-22

申请号：US13915780

申请日：2013-06-12

Applicant: CIRRUS LOGIC, INC.

Inventor： John L. Melanson ,  Eric Swanson

IPC: H04R1/04

CPC classification number: H04R3/005 ,  H04R1/04 ,  H04R1/1041 ,  H04R3/04 ,  H04R19/02 ,  H04R19/04 ,  H04R2400/01 ,  H04R2499/11 ,  H04W52/0251 ,  H04W52/0254 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164 ,  Y02D70/168

Abstract: In accordance with methods and systems of the present disclosure, a mobile device may include an enclosure adapted such that the enclosure is readily transported by a user of the mobile device, a speaker associated with the enclosure for generating sound, and a controller within the enclosure, communicatively coupled to the speaker. The controller may be configured to receive a signal from the speaker, the signal induced at least in part by sound incident on the speaker other than sound generated by the speaker and process the signal.

Abstract translation: 根据本公开的方法和系统，移动设备可以包括适于使得外壳容易地由移动设备的用户传输的外壳，与外壳相关联的用于产生声音的扬声器以及外壳内的控制器 通信地耦合到扬声器。 控制器可以被配置为从扬声器接收信号，所述信号至少部分地由入射在扬声器上的声音引起，而不是由扬声器产生的声音并且处理该信号。

公开(公告)号：US09628909B2

公开(公告)日：2017-04-18

申请号：US14932803

申请日：2015-11-04

Applicant: Cirrus Logic, Inc.

Inventor： John L. Melanson ,  Eric Swanson

IPC: H04R21/02 ,  H04R3/00 ,  H04R1/04 ,  H04W52/02 ,  H04R1/10 ,  H04R3/04 ,  H04R19/02 ,  H04R19/04 ,  H03G3/20

CPC classification number: H04R3/005 ,  H04R1/04 ,  H04R1/1041 ,  H04R3/04 ,  H04R19/02 ,  H04R19/04 ,  H04R2400/01 ,  H04R2499/11 ,  H04W52/0251 ,  H04W52/0254 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164 ,  Y02D70/168

Abstract: In accordance with methods and systems of the present disclosure, a mobile device may include an enclosure adapted such that the enclosure is readily transported by a user of the mobile device, a speaker associated with the enclosure for generating sound, and a controller within the enclosure, communicatively coupled to the speaker. The controller may be configured to receive a signal from the speaker, the signal induced at least in part by sound incident on the speaker other than sound generated by the speaker and process the signal.