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公开(公告)号：US20210219054A1
公开(公告)日：2021-07-15
申请号：US17147259
申请日：2021-01-12
Applicant: Texas Instruments Incorporated
Inventor： Prateek Jain , Matthew Raymond Kucic , Sahiti Priya Chittam
Abstract: Methods and systems for aligning amplification gains in a plurality of interconnected devices are disclosed. The method includes receiving by each device limiter gain attenuations and brownout gain attenuations broadcasted by the plurality of devices and selecting the maximum brownout gain attenuation and the maximum limiter gain attenuation. The method includes determining a total attenuation as a sum of the maximum brownout attenuation gain and the maximum limiter attenuation gain. The method includes receiving a frame synchronization signal and adjusting the amplification gain by applying the total attenuation responsive to the frame synchronization signal.
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公开(公告)号：US10123114B2
公开(公告)日：2018-11-06
申请号：US15643614
申请日：2017-07-07
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Uttam Kumar Agarwal , Prateek Jain , Nageswara Rao , Mukund Navada , Pradeep Chandar Chandramouli
Abstract: Brownout management for an audio amplification system. An audio amplification system includes audio volume control circuitry, audio sample interpolation circuitry, and brownout management circuitry. The brownout management circuitry includes brownout detection circuitry and brownout response circuitry. The brownout detection circuitry is configured to determine whether a voltage of a battery that powers the audio amplification system is below a brownout threshold, and to generate a brownout detection signal that indicates the voltage is below the brownout threshold. The brownout response circuitry is coupled to an audio output of the audio sample interpolation circuitry. The brownout response circuitry is configured to attenuate the audio samples output by the audio sample interpolation circuitry responsive to the brownout detection signal indicating that the voltage is below the brownout threshold.
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公开(公告)号：US10405092B2
公开(公告)日：2019-09-03
申请号：US16148349
申请日：2018-10-01
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Uttam Kumar Agarwal , Prateek Jain , Nageswara Rao , Mukund Navada , Pradeep Chandar Chandramouli
Abstract: Brownout management for an audio amplification system. An audio amplification system includes audio volume control circuitry, audio sample interpolation circuitry, and brownout management circuitry. The brownout management circuitry includes brownout detection circuitry and brownout response circuitry. The brownout detection circuitry is configured to determine whether a voltage of a battery that powers the audio amplification system is below a brownout threshold, and to generate a brownout detection signal that indicates the voltage is below the brownout threshold. The brownout response circuitry is coupled to an audio output of the audio sample interpolation circuitry. The brownout response circuitry is configured to attenuate the audio samples output by the audio sample interpolation circuitry responsive to the brownout detection signal indicating that the voltage is below the brownout threshold.
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公开(公告)号：US11843924B2
公开(公告)日：2023-12-12
申请号：US17147259
申请日：2021-01-12
Applicant: Texas Instruments Incorporated
Inventor： Prateek Jain , Matthew Raymond Kucic , Sahiti Priya Chittam
CPC classification number: H04R3/007 , H03F3/217 , H03G3/3005 , H04R2430/01
Abstract: Methods and systems for aligning amplification gains in a plurality of interconnected devices are disclosed. The method includes receiving by each device limiter gain attenuations and brownout gain attenuations broadcasted by the plurality of devices and selecting the maximum brownout gain attenuation and the maximum limiter gain attenuation. The method includes determining a total attenuation as a sum of the maximum brownout attenuation gain and the maximum limiter attenuation gain. The method includes receiving a frame synchronization signal and adjusting the amplification gain by applying the total attenuation responsive to the frame synchronization signal.
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