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11.发明授权Systems and methods for detection of load impedance of a transducer device coupled to an audio device 有权用于检测耦合到音频装置的换能器装置的负载阻抗的系统和方法公开(公告)号：US09578417B2
公开(公告)日：2017-02-21
申请号：US14036682
申请日：2013-09-25
Applicant: Cirrus Logic, Inc.
Inventor： Anand Ilango , Daniel John Allen , Aniruddha Satoskar
IPC: H04R3/00 , H04R5/04 , H03F1/02 , H03F1/52 , H03F3/183 , H03F3/185 , G10K11/178 , H03F3/52 , H04R29/00 , H03F3/181
CPC classification number: H04R3/007 , G10K11/17854 , G10K11/17881 , G10K11/17885 , G10K2210/1081 , G10K2210/30232 , G10K2210/3045 , G10K2210/3049 , H03F1/0211 , H03F1/0227 , H03F1/52 , H03F3/181 , H03F3/183 , H03F3/185 , H03F3/52 , H03F2200/03 , H03F2200/462 , H03F2200/471 , H04R5/04 , H04R29/001 , H04R2420/05
Abstract: In accordance with systems and methods of the present disclosure, an audio device may include an electrical terminal, an audio circuit, and a transducer load detection circuit. The electrical terminal may couple a transducer device to the audio device. The audio circuit may generate an analog audio signal, wherein the analog audio signal is coupled to the electrical terminal. The transducer load detection circuit may detect a load impedance of the transducer device when the transducer device is coupled to the audio device from characteristics measured at the electrical terminal.
Abstract translation: 根据本公开的系统和方法，音频设备可以包括电气终端，音频电路和换能器负载检测电路。 电气终端可将传感器装置耦合到音频装置。 音频电路可以产生模拟音频信号，其中模拟音频信号耦合到电气终端。 换能器负载检测电路可以根据在电气端子处测量的特性将传感器装置耦合到音频装置时，检测换能器装置的负载阻抗。
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12.发明授权Systems and methods for detection of load impedance of a transducer device coupled to an audio device 有权用于检测耦合到音频装置的换能器装置的负载阻抗的系统和方法公开(公告)号：US09479869B2
公开(公告)日：2016-10-25
申请号：US15042757
申请日：2016-02-12
Applicant: Cirrus Logic, Inc.
Inventor： Anand Ilango , Daniel John Allen , Aniruddha Satoskar
IPC: H04R3/00 , H04R29/00 , G10K11/178 , H03F1/02 , H03F3/181 , H03F3/52 , H03F3/185 , H03F1/52 , H03F3/183 , H04R5/04
CPC classification number: H04R3/007 , G10K11/17854 , G10K11/17881 , G10K11/17885 , G10K2210/1081 , G10K2210/30232 , G10K2210/3045 , G10K2210/3049 , H03F1/0211 , H03F1/0227 , H03F1/52 , H03F3/181 , H03F3/183 , H03F3/185 , H03F3/52 , H03F2200/03 , H03F2200/462 , H03F2200/471 , H04R5/04 , H04R29/001 , H04R2420/05
Abstract: In accordance with systems and methods of the present disclosure, an audio device may include an electrical terminal, an audio circuit, and a transducer load detection circuit. The electrical terminal may couple a transducer device to the audio device. The audio circuit may generate an analog audio signal, wherein the analog audio signal is coupled to the electrical terminal. The transducer load detection circuit may detect a load impedance of the transducer device when the transducer device is coupled to the audio device from characteristics measured at the electrical terminal.
Abstract translation: 根据本公开的系统和方法，音频设备可以包括电气终端，音频电路和换能器负载检测电路。 电气终端可将传感器装置耦合到音频装置。 音频电路可以产生模拟音频信号，其中模拟音频信号耦合到电气终端。 换能器负载检测电路可以根据在电气端子处测量的特性将传感器装置耦合到音频装置时，检测换能器装置的负载阻抗。
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13.发明授权公开(公告)号：US09148164B1
公开(公告)日：2015-09-29
申请号：US14480343
申请日：2014-09-08
Applicant: Cirrus Logic, Inc.
Inventor： Edmund Mark Schneider , Aniruddha Satoskar , Daniel J. Allen , Seyedeh Maryam Mortazavi Zanjani
CPC classification number: H04R3/02 , H03M1/002 , H03M1/0631 , H03M1/18 , H03M1/181 , H03M1/188 , H03M3/466 , H04R3/04 , H04R2420/01 , H04R2430/03
Abstract: A processing system may include multiple selectable processing paths for processing an analog signal in order to reduce noise and increase dynamic range. Techniques are employed to transition between processing paths and calibrate operational parameters of the two paths in order to reduce or eliminate artifacts caused by switching between processing paths.
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14.发明申请SYSTEMS AND METHODS FOR DETECTION OF LOAD IMPEDANCE OF A TRANSDUCER DEVICE COUPLED TO AN AUDIO DEVICE 有权用于检测耦合到音频设备的传感器装置的负载阻抗的系统和方法公开(公告)号：US20150078560A1
公开(公告)日：2015-03-19
申请号：US14036682
申请日：2013-09-25
Applicant: Cirrus Logic, Inc.
Inventor： Anand Ilango , Daniel John Allen , Aniruddha Satoskar
IPC: H04R29/00
CPC classification number: H04R3/007 , G10K11/17854 , G10K11/17881 , G10K11/17885 , G10K2210/1081 , G10K2210/30232 , G10K2210/3045 , G10K2210/3049 , H03F1/0211 , H03F1/0227 , H03F1/52 , H03F3/181 , H03F3/183 , H03F3/185 , H03F3/52 , H03F2200/03 , H03F2200/462 , H03F2200/471 , H04R5/04 , H04R29/001 , H04R2420/05
Abstract: In accordance with systems and methods of the present disclosure, an audio device may include an electrical terminal, an audio circuit, and a transducer load detection circuit. The electrical terminal may couple a transducer device to the audio device. The audio circuit may generate an analog audio signal, wherein the analog audio signal is coupled to the electrical terminal The transducer load detection circuit may detect a load impedance of the transducer device when the transducer device is coupled to the audio device from characteristics measured at the electrical terminal.
Abstract translation: 根据本公开的系统和方法，音频设备可以包括电气终端，音频电路和换能器负载检测电路。 电气终端可将传感器装置耦合到音频装置。 音频电路可以产生模拟音频信号，其中模拟音频信号耦合到电气端子。当换能器装置从音频装置耦合到音频装置时，传感器负载检测电路可以检测换能器装置的负载阻抗， 电气终端。
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Patent Agency Ranking
15.发明授权公开(公告)号：US09774342B1
公开(公告)日：2017-09-26
申请号：US14596826
申请日：2015-01-14
Applicant: Cirrus Logic, Inc.
Inventor： Edmund Mark Schneider , Aniruddha Satoskar , Daniel J. Allen , Seyedeh Maryam Mortazavi Zanjani
CPC classification number: H03M1/188 , G10K11/16 , H03M1/002 , H03M1/0631 , H03M1/18 , H03M1/181 , H03M3/466 , H04R3/02 , H04R3/04 , H04R2420/01 , H04R2430/03
Abstract: In accordance with embodiments of the present disclosure, a processing system may include multiple selectable processing paths for processing an analog signal in order to reduce noise and increase dynamic range. Techniques are employed to transition between processing paths and calibrate operational parameters of the two paths in order to reduce or eliminate artifacts caused by switching between processing paths.
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16.发明授权Systems and methods for reduction of audio artifacts in an audio system with dynamic range enhancement 有权用于减少具有动态范围增强的音频系统中的音频伪影的系统和方法公开(公告)号：US09596537B2
公开(公告)日：2017-03-14
申请号：US14483659
申请日：2014-09-11
Applicant: Cirrus Logic, Inc.
Inventor： Ku He , Tejasvi Das , John L. Melanson , Aniruddha Satoskar
CPC classification number: H04R3/00 , H03G3/00 , H03G3/20 , H03G3/3005 , H03G3/3089 , H04R3/04 , H04R2430/00
Abstract: In accordance with embodiments of the present disclosure, a control circuit may be configured to, responsive to an indication to switch between gain modes of a signal path having an analog path portion and a digital signal path portion, switch a selectable analog gain of the analog path portion between a first analog gain and a second analog gain, switch a selectable digital gain of the digital signal path portion between a first digital gain and a second digital gain, wherein the product of the first analog gain and the first digital gain is approximately equal to the product of the second analog gain and the second digital gain, and control an analog response of the signal path to reduce the occurrence of audio artifacts present in the output signal as a result of the switch between gain modes of the signal path.A signal path may have an analog path portion and a digital signal path portion. The digital portion may have a selectable digitally-controlled gain and may be configured to convert a digital audio input signal into an analog input signal in conformity with the selectable digitally-controlled gain, the digital signal path portion comprising a modulator including a forward path and a feedback path. The forward path may include a loop filter for generating a filtered signal responsive to the digital audio input signal and a feedback signal, a quantizer responsive to the filtered signal for generating a quantized signal, and a first gain element configured to apply the selectable digitally-controlled gain to a signal within the forward path. The feedback path may be configured to generate the feedback signal responsive to the quantized signal, the feedback path including a second gain element having a gain inversely proportional to the selectable digitally-controlled gain.
Abstract translation: 信号路径可以具有模拟路径部分和数字信号路径部分。 数字部分可以具有可选择的数字控制的增益，并且可以被配置为将数字音频输入信号转换成符合可选数字控制的增益的模拟输入信号，数字信号路径部分包括调制器，包括前向路径和 反馈路径。 正向路径可以包括环路滤波器，用于响应于数字音频输入信号和反馈信号产生经滤波的信号，响应于经滤波的信号产生量化信号的量化器，以及第一增益元件，被配置为将可选择的数字 - 控制增益到正向路径内的信号。 反馈路径可以被配置为响应于量化信号产生反馈信号，反馈路径包括具有与可选数字控制增益成反比的增益的第二增益元件。
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17.发明授权Multi-path analog front end and analog-to-digital converter for a signal processing system 有权用于信号处理系统的多路径模拟前端和模数转换器公开(公告)号：US09525940B1
公开(公告)日：2016-12-20
申请号：US14476507
申请日：2014-09-03
Applicant: Cirrus Logic, Inc.
Inventor： Edmund Mark Schneider , Aniruddha Satoskar , Daniel J. Allen , Seyedeh Maryam Mortazavi Zanjani
CPC classification number: H04R3/02 , H03M1/002 , H03M1/0631 , H03M1/18 , H03M1/181 , H03M1/188 , H03M3/466 , H04R3/04 , H04R2420/01 , H04R2430/03
Abstract: In accordance with embodiments of the present disclosure, a processing system may include multiple selectable processing paths for processing an analog signal in order to reduce noise and increase dynamic range. Techniques are employed to transition between processing paths and calibrate operational parameters of the two paths in order to reduce or eliminate artifacts caused by switching between processing paths.
Abstract translation: 根据本公开的实施例，处理系统可以包括用于处理模拟信号的多个可选择的处理路径，以便降低噪声并增加动态范围。 采用技术来在处理路径之间转换并且校准两个路径的操作参数，以便减少或消除由处理路径之间的切换引起的伪影。
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18.发明申请公开(公告)号：US20160165348A1
公开(公告)日：2016-06-09
申请号：US15042757
申请日：2016-02-12
Applicant: Cirrus Logic, Inc.
Inventor： Anand Ilango , Daniel John Allen , Aniruddha Satoskar
CPC classification number: H04R3/007 , G10K11/17854 , G10K11/17881 , G10K11/17885 , G10K2210/1081 , G10K2210/30232 , G10K2210/3045 , G10K2210/3049 , H03F1/0211 , H03F1/0227 , H03F1/52 , H03F3/181 , H03F3/183 , H03F3/185 , H03F3/52 , H03F2200/03 , H03F2200/462 , H03F2200/471 , H04R5/04 , H04R29/001 , H04R2420/05
Abstract: In accordance with systems and methods of the present disclosure, an audio device may include an electrical terminal, an audio circuit, and a transducer load detection circuit. The electrical terminal may couple a transducer device to the audio device. The audio circuit may generate an analog audio signal, wherein the analog audio signal is coupled to the electrical terminal. The transducer load detection circuit may detect a load impedance of the transducer device when the transducer device is coupled to the audio device from characteristics measured at the electrical terminal.
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19.发明申请公开(公告)号：US20150078559A1
公开(公告)日：2015-03-19
申请号：US14036136
申请日：2013-09-25
Applicant: Cirrus Logic, Inc.
Inventor： Anand Ilango , Daniel John Allen , Aniruddha Satoskar
IPC: H04R29/00
CPC classification number: H04R3/007 , G10K11/17854 , G10K11/17881 , G10K11/17885 , G10K2210/1081 , G10K2210/30232 , G10K2210/3045 , G10K2210/3049 , H03F1/0211 , H03F1/0227 , H03F1/52 , H03F3/181 , H03F3/183 , H03F3/185 , H03F3/52 , H03F2200/03 , H03F2200/462 , H03F2200/471 , H04R5/04 , H04R29/001 , H04R2420/05
Abstract: In accordance with systems and methods of the present disclosure, an audio device may include an electrical terminal, an audio circuit, and a transducer load detection circuit. The electrical terminal may couple a transducer device to the audio device. The audio circuit may generate an analog audio signal, wherein the analog audio signal is coupled to the electrical terminal The transducer load detection circuit may detect a load impedance of the transducer device when the transducer device is coupled to the audio device from characteristics measured at the electrical terminal.
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