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公开(公告)号：US20220141578A1
公开(公告)日：2022-05-05
申请号：US17085729
申请日：2020-10-30
Applicant: Samsung Electronics Co., Ltd.
Inventor： Pascal M. Brunet , Yuan Li
Abstract: One embodiment provides a method comprising inputting into a first layer of a neural network at least one data sample of a current displacement of one or more moving components of a loudspeaker and at least one or more other data samples of one or more prior displacements of the one or more moving components. The method comprises generating in the first layer a data vector by applying a nonlinear activation function based on the at least one data sample of the current displacement and the at least one or more other data samples of the one or more prior displacements. The method comprises inputting into a second layer of the neural network the data vector and applying an affine transformation to the data vector. The method comprises outputting a prediction of a current voltage to apply to the loudspeaker based on the affine transformation applied to the data vector.
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公开(公告)号：US20250103273A1
公开(公告)日：2025-03-27
申请号：US18392396
申请日：2023-12-21
Applicant: Samsung Electronics Co., Ltd.
Inventor： Pascal M. Brunet
IPC: G06F3/16
Abstract: One embodiment provides a computer-implemented method that includes predicting, based on an artificial intelligence (AI) model, a look-ahead level to adjust one or more levels for an audio stream in real-time. The method further includes providing level adjustments without user parametrization while improving sound quality for the audio stream.
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公开(公告)号：US20180192192A1
公开(公告)日：2018-07-05
申请号：US15835245
申请日：2017-12-07
Applicant: Samsung Electronics Co., Ltd.
Inventor： Pascal M. Brunet , Glenn S. Kubota
Abstract: One embodiment provides a device comprising a speaker driver including a diaphragm. The device further comprises a controller configured to receive a source signal for reproduction via the speaker driver, determine an estimated displacement of the diaphragm resulting from the reproduction of the source signal, and generate a control voltage based on the estimated displacement and threshold information relating to safe displacement of the diaphragm. An actual displacement of the diaphragm during the reproduction of the source signal is controlled based on the control voltage.
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公开(公告)号：US20240221773A1
公开(公告)日：2024-07-04
申请号：US18150132
申请日：2023-01-04
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Pascal M. Brunet
IPC: G10L21/038
CPC classification number: G10L21/038
Abstract: One embodiment provides a computer-implemented method that includes accessing an artificial intelligence model trained for a filterbank based on a control gain of the filterbank and a resulting frequency response gain. Based on a target frequency response gain inputted into the trained artificial intelligence model, a control gain is applicable to a filter in the filterbank is outputted. The target frequency response gain is obtained at a center frequency of the filter in the filterbank.
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公开(公告)号：US20200083853A1
公开(公告)日：2020-03-12
申请号：US16391081
申请日：2019-04-22
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yuan Li , Pascal M. Brunet
Abstract: One embodiment provides a method comprising determining an energy stored in a port of a vented box loudspeaker based on a physical model of the vented box loudspeaker, determining a time-varying attenuation to apply to a source signal for reproduction via the vented box loudspeaker based on the energy stored in the port, and controlling the energy stored in the port in real-time by attenuating the source signal based on the time-varying attenuation. A velocity of air in the port during the reproduction of the source signal is limited based on the controlling.
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Patent Agency Ranking
公开(公告)号：US10547942B2
公开(公告)日：2020-01-28
申请号：US15391633
申请日：2016-12-27
Applicant: Samsung Electronics Co., Ltd.
Inventor： Pascal M. Brunet , Allan Devantier
Abstract: A speaker system includes a speaker driver configured to cause speaker cone displacement based on a driver voltage input. A controller is configured to generate the driver voltage input to the speaker driver. The controller includes: a feedforward control path configured to generate a nominal voltage input based on a nonlinear model of electroacoustic dynamics of the speaker driver and an input audio signal.
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公开(公告)号：US10462565B2
公开(公告)日：2019-10-29
申请号：US15835245
申请日：2017-12-07
Applicant: Samsung Electronics Co., Ltd.
Inventor： Pascal M. Brunet , Glenn S. Kubota
Abstract: One embodiment provides a device comprising a speaker driver including a diaphragm. The device further comprises a controller configured to receive a source signal for reproduction via the speaker driver, determine an estimated displacement of the diaphragm resulting from the reproduction of the source signal, and generate a control voltage based on the estimated displacement and threshold information relating to safe displacement of the diaphragm. An actual displacement of the diaphragm during the reproduction of the source signal is controlled based on the control voltage.
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公开(公告)号：US11356773B2
公开(公告)日：2022-06-07
申请号：US17085729
申请日：2020-10-30
Applicant: Samsung Electronics Co., Ltd.
Inventor： Pascal M. Brunet , Yuan Li
Abstract: One embodiment provides a method comprising inputting into a first layer of a neural network at least one data sample of a current displacement of one or more moving components of a loudspeaker and at least one or more other data samples of one or more prior displacements of the one or more moving components. The method comprises generating in the first layer a data vector by applying a nonlinear activation function based on the at least one data sample of the current displacement and the at least one or more other data samples of the one or more prior displacements. The method comprises inputting into a second layer of the neural network the data vector and applying an affine transformation to the data vector. The method comprises outputting a prediction of a current voltage to apply to the loudspeaker based on the affine transformation applied to the data vector.
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公开(公告)号：US10797666B2
公开(公告)日：2020-10-06
申请号：US16391081
申请日：2019-04-22
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yuan Li , Pascal M. Brunet
Abstract: One embodiment provides a method comprising determining an energy stored in a port of a vented box loudspeaker based on a physical model of the vented box loudspeaker, determining a time-varying attenuation to apply to a source signal for reproduction via the vented box loudspeaker based on the energy stored in the port, and controlling the energy stored in the port in real-time by attenuating the source signal based on the time-varying attenuation. A velocity of air in the port during the reproduction of the source signal is limited based on the controlling.
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公开(公告)号：US20200053493A1
公开(公告)日：2020-02-13
申请号：US16057711
申请日：2018-08-07
Applicant: Samsung Electronics Co., Ltd.
Inventor： James F. Lazar , Pascal M. Brunet
Abstract: One embodiment provides a system for nonlinear control of a loudspeaker. The system comprises a current source amplifier connected to the loudspeaker, and a controller connected to the current source amplifier. The controller is configured to determine a target displacement of a diaphragm of the speaker driver based on a source signal for reproduction via the loudspeaker, determine a control current based on the target displacement of the diaphragm and a first physical model of the loudspeaker, and transmit a control current signal specifying the control current to the current source amplifier. The current source amplifier outputs the control current to drive the speaker driver based on the control current signal. An actual displacement of the diaphragm during the reproduction of the source signal is controlled based on the control current, via the control current signal.
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