专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20140140535A1 Dynamic Speaker Management for Multichannel Audio Systems 有权
标题翻译：多声道音频系统的动态扬声器管理
公开(公告)号：US20140140535A1
公开(公告)日：2014-05-22
申请号：US14067843
申请日：2013-10-30
申请人： Maxim Integrated Products, Inc.
发明人： Anthony S. Doy , Vivek P. Nigam , Robert Polleros
IPC分类号： H03G3/00
CPC分类号： H03G11/00 , H03G3/00 , H03G9/025 , H04M9/082
摘要： A multiband limiter with selective sideband linking includes first and second frequency band splitters, a first and second plurality of limiters, first and second summers, and a plurality of selectable links coupling the first plurality of limiters to the second plurality of limiters. The first plurality of limiters each have a band input coupled to one of the first plurality of band outputs, a link port and a limiter output, and the first summer is receptive to the limiter outputs of the first plurality of limiters and has a first channel output. The second plurality of limiters each have a band input coupled to one of the second plurality of band outputs, a link port and a limiter output, and the second summer is receptive to the limiter outputs of the second plurality of limiters and has a second channel output.
摘要翻译：具有选择性边带链接的多频段限幅器包括第一和第二频带分离器，第一和第二多个限制器，第一和第二加法器以及将第一多个限制器耦合到第二多个限制器的多个可选择链路。所述第一多个限制器各自具有耦合到所述第一多个频带输出中的一个频带输出的频带输入，链路端口和限幅器输出，并且所述第一加法器接收所述第一多个限幅器的限幅器输出，并且具有第一通道输出。第二多个限制器各自具有耦合到第二多个频带输出之一的频带输入，链路端口和限幅器输出，并且第二加法器接收第二多个限幅器的限幅器输出，并且具有第二通道输出。

2. 发明申请

US20140135078A1 Dynamic Speaker Management with Echo Cancellation 有权
标题翻译：具有回声消除功能的动态扬声器管理
公开(公告)号：US20140135078A1
公开(公告)日：2014-05-15
申请号：US14067716
申请日：2013-10-30
申请人： Maxim Integrated Products, Inc.
发明人： Vivek P. Nigam , Anthony S. Doy , Robert Polleros
IPC分类号： H04M9/08
CPC分类号： H03G11/00 , H03G3/00 , H03G9/025 , H04M9/082
摘要： A system for echo cancellation includes a dynamic speaker management (DSM) module, a current/voltage sensing amplifier, a sound pressure level (SPL) model module and an echo canceller. The example DSM module is receptive to a far-end signal and is operative to develop a modified far-end signal and a plurality of parameter outputs. The example current/voltage sensing amplifier is coupled to the modified far-end signal and develops an amplifier output, a voltage (V) parameter output, and a current (I) parameter output. The example sound pressure level (SPL) model module is coupled to the plurality of parameter outputs of the of the DSM module and is operative to develop a predicted SPL. The example echo canceller module is responsive to the predicted SPL and to a near-end signal and operative to develop an echo-canceled output signal.
摘要翻译：用于回波消除的系统包括动态扬声器管理（DSM）模块，电流/电压感测放大器，声压级（SPL）模型模块和回声消除器。示例DSM模块接收远端信号，并且可操作以开发经修改的远端信号和多个参数输出。示例电流/电压感测放大器耦合到经修改的远端信号，并开发放大器输出，电压（V）参数输出和电流（I）参数输出。示例声压级（SPL）模型模块耦合到DSM模块的多个参数输出，并且可操作以开发预测的SPL。示例性回波消除器模块响应于预测的SPL和近端信号并且可操作地开发回声消除的输出信号。

3. 发明申请

US20200249737A1 INTELLIGENT CURRENT LIMITER FOR A COMPUTING DEVICE 审中-公开
公开(公告)号：US20200249737A1
公开(公告)日：2020-08-06
申请号：US16781617
申请日：2020-02-04
申请人： Maxim Integrated Products, Inc.
发明人： Vivek P. Nigam , Sangwon Lee , Robert Polleros
IPC分类号： G06F1/28 , G08B7/06
摘要： A mobile computing device includes one or more digital signal processors, each configured to receive a respective digital signal, one or more amplifiers, each configured to receive a respective digital signal, and one or more output generators configured to receive an output of a respective amplifier, and a battery configured to supply power to at least the amplifier(s). The digital signal processors include an intelligent current limiter. The intelligent current limiter is configured to determine a power consumption limit based on a battery voltage of the battery, a battery current limit defined by a battery current budget for operation of at least the amplifiers, and an efficiency of the amplifiers. The intelligent current limiter is configured to determine a predicted power consumption by the amplifiers based on voltages of the digital signals, a gain of each of the respective amplifiers, and an admittance of each of the respective output generators. The intelligent current limiter compares the predicted power consumption with the power consumption limit and adjusts the gain setting(s) of one or more of the digital signal processors based on the comparison prior to supplying the respective digital signals to the amplifiers.

4. 发明授权

US11320881B2 Intelligent current limiter for a computing device 有权
公开(公告)号：US11320881B2
公开(公告)日：2022-05-03
申请号：US16781617
申请日：2020-02-04
申请人： Maxim Integrated Products, Inc.
发明人： Vivek P. Nigam , Sangwon Lee , Robert Polleros
IPC分类号： G06F1/28 , G08B7/06
摘要： A mobile computing device includes one or more digital signal processors, each configured to receive a respective digital signal, one or more amplifiers, each configured to receive a respective digital signal, and one or more output generators configured to receive an output of a respective amplifier, and a battery configured to supply power to at least the amplifier(s). The digital signal processors include an intelligent current limiter. The intelligent current limiter is configured to determine a power consumption limit based on a battery voltage of the battery, a battery current limit defined by a battery current budget for operation of at least the amplifiers, and an efficiency of the amplifiers. The intelligent current limiter is configured to determine a predicted power consumption by the amplifiers based on voltages of the digital signals, a gain of each of the respective amplifiers, and an admittance of each of the respective output generators. The intelligent current limiter compares the predicted power consumption with the power consumption limit and adjusts the gain setting(s) of one or more of the digital signal processors based on the comparison prior to supplying the respective digital signals to the amplifiers.

5. 发明授权

US11140483B2 Management of low frequency components of an audio signal at a mobile computing device 有权
公开(公告)号：US11140483B2
公开(公告)日：2021-10-05
申请号：US16809146
申请日：2020-03-04
申请人： Maxim Integrated Products, Inc.
发明人： Robert Polleros , Vivek P. Nigam
IPC分类号： H04M1/725 , H04R3/14 , H04R5/02 , H04S1/00 , H04R5/04 , H04R1/02 , H04R1/26 , H04R3/04 , H04S7/00
摘要： A mobile computing device includes a digital signal processor, a first speaker having a first sensitivity and a second speaker having a second sensitivity, where the second sensitivity is greater than the first sensitivity. The digital signal processor includes an audio signal manager that is configured to receive an audio signal having first and second channel signals, partition the first channel signal into a first high frequency signal and a first low frequency signal, partition the second channel signal into a second high frequency signal and a second low frequency signal, generate a mono low frequency signal based on the first and second low frequency signals, partition the mono low frequency signal into first and second mono low frequency signals based on an excursion limit of the second speaker, generate a first composite channel signal based on the first high frequency signal and the first mono low frequency signal for playback by the first speaker, and generate a second composite channel signal based on the second high frequency signal and the second mono low frequency signal for playback by the second speaker.

6. 发明申请

US20200288246A1 MANAGEMENT OF LOW FREQUENCY COMPONENTS OF AN AUDIO SIGNAL AT A MOBILE COMPUTING DEVICE 审中-公开
公开(公告)号：US20200288246A1
公开(公告)日：2020-09-10
申请号：US16809146
申请日：2020-03-04
申请人： Maxim Integrated Products, Inc.
发明人： Robert Polleros , Vivek P. Nigam
IPC分类号： H04R5/02 , H04S1/00 , H04R5/04 , H04R1/02 , H04R3/14 , H04R1/26 , H04R3/04 , H04S7/00
摘要： A mobile computing device includes a digital signal processor, a first speaker having a first sensitivity and a second speaker having a second sensitivity, where the second sensitivity is greater than the first sensitivity. The digital signal processor includes an audio signal manager that is configured to receive an audio signal having first and second channel signals, partition the first channel signal into a first high frequency signal and a first low frequency signal, partition the second channel signal into a second high frequency signal and a second low frequency signal, generate a mono low frequency signal based on the first and second low frequency signals, partition the mono low frequency signal into first and second mono low frequency signals based on an excursion limit of the second speaker, generate a first composite channel signal based on the first high frequency signal and the first mono low frequency signal for playback by the first speaker, and generate a second composite channel signal based on the second high frequency signal and the second mono low frequency signal for playback by the second speaker.

7. 发明授权

US10374566B2 Perceptual power reduction system and method 有权
公开(公告)号：US10374566B2
公开(公告)日：2019-08-06
申请号：US15661355
申请日：2017-07-27
申请人： Maxim Integrated Products, Inc.
发明人： Vivek P. Nigam , Robert Polleros , Wen Jin
IPC分类号： H04R3/04 , H03G3/32 , H03G3/30 , H04R29/00 , H03G5/00 , H03G5/16
摘要： A method of reducing power consumed by an audio playback system includes: receiving a signal from a digital audio interface; comparing a sound pressure level (SPL) response of a first frequency band of the signal to a total SPL response of the signal, the first frequency band including frequencies lower than a selected frequency; and attenuating signal components in the first frequency band of the signal based upon the comparison of the SPL response of the first frequency band of the signal to the total SPL response of the signal.

8. 发明申请

US20180034433A1 PERCEPTUAL POWER REDUCTION SYSTEM AND METHOD 审中-公开
公开(公告)号：US20180034433A1
公开(公告)日：2018-02-01
申请号：US15661355
申请日：2017-07-27
申请人： Maxim Integrated Products, Inc.
发明人： Vivek P. Nigam , Robert Polleros , Wen Jin
IPC分类号： H03G3/32 , H04R29/00 , H03G3/30 , H04R3/04
CPC分类号： H03G3/32 , H03G3/3005 , H03G5/005 , H03G5/165 , H04R3/04 , H04R29/001 , H04R2420/07 , H04R2430/03 , H04R2460/03
摘要： A method of reducing power consumed by an audio playback system includes: receiving a signal from a digital audio interface; comparing a sound pressure level (SPL) response of a first frequency band of the signal to a total SPL response of the signal, the first frequency band including frequencies lower than a selected frequency; and attenuating signal components in the first frequency band of the signal based upon the comparison of the SPL response of the first frequency band of the signal to the total SPL response of the signal.

9. 发明授权

US09344050B2 Dynamic speaker management with echo cancellation 有权
标题翻译：具有回声消除功能的动态扬声器管理
公开(公告)号：US09344050B2
公开(公告)日：2016-05-17
申请号：US14067716
申请日：2013-10-30
申请人： Maxim Integrated Products, Inc.
发明人： Vivek P. Nigam , Anthony S. Doy , Robert Polleros
IPC分类号： H03G3/00 , H04M9/08 , H03G9/02
CPC分类号： H03G11/00 , H03G3/00 , H03G9/025 , H04M9/082
摘要： A system for echo cancellation includes a dynamic speaker management (DSM) module, a current/voltage sensing amplifier, a sound pressure level (SPL) model module and an echo canceller. The example DSM module is receptive to a far-end signal and is operative to develop a modified far-end signal and a plurality of parameter outputs. The example current/voltage sensing amplifier is coupled to the modified far-end signal and develops an amplifier output, a voltage (V) parameter output, and a current (I) parameter output. The example sound pressure level (SPL) model module is coupled to the plurality of parameter outputs of the of the DSM module and is operative to develop a predicted SPL. The example echo canceller module is responsive to the predicted SPL and to a near-end signal and operative to develop an echo-canceled output signal.
摘要翻译：用于回波消除的系统包括动态扬声器管理（DSM）模块，电流/电压感测放大器，声压级（SPL）模型模块和回声消除器。示例DSM模块接收远端信号，并且可操作以开发经修改的远端信号和多个参数输出。示例电流/电压感测放大器耦合到经修改的远端信号，并开发放大器输出，电压（V）参数输出和电流（I）参数输出。示例声压级（SPL）模型模块耦合到DSM模块的多个参数输出，并且可操作以开发预测的SPL。示例性回波消除器模块响应于预测的SPL和近端信号并且可操作地开发回声消除的输出信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式