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101.发明申请公开(公告)号：US20170150284A1
公开(公告)日：2017-05-25
申请号：US15361713
申请日：2016-11-28
Applicant: Maxim Integrated Products, Inc.
Inventor： Robert Polleros
CPC classification number: H04R29/003 , H04R3/007 , H04R9/022 , H04R9/06 , H04R2430/01
Abstract: Aspects of the disclosure pertain to a system and method for providing temperature limiting for a voice coil of a speaker. The system and method provide the aforementioned temperature limiting based upon monitoring (e.g., measurement) of an amplifier output signal provided to the speaker. Providing the aforementioned temperature limiting promotes improved protection for the speaker.
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公开(公告)号：US20170019732A1
公开(公告)日：2017-01-19
申请号：US15122083
申请日：2015-02-18
Applicant: DEVIALET
Inventor： Eduardo MENDES , Pierre-Emmanuel CALMEL , Antoine PETROFF , Jean-Loup AFRESNE
CPC classification number: H04R3/007 , H04R1/2834 , H04R3/04 , H04R9/06 , H04R29/003
Abstract: The present invention relates to a device for controlling a loudspeaker (14) in an enclosure, comprising:an input for an audio signal (Saudio_ref) to be reproduced;an output for supplying an excitation signal from the loudspeaker.It comprises a control unit comprising:means (24, 25) for calculating a desired dynamic value (Aref) of the loudspeaker diaphragm based on the audio signal (Saudio_ref) to be reproduced and the structure of the enclosure;means (26) for calculating a plurality of desired dynamic values (Aref, dAref/dt, Vref, Xref) of the loudspeaker diaphragm at each moment based on only the desired dynamic value (Aref);a mechanical model (36) of the loudspeaker; andmeans (70, 80, 90) for calculating the excitation signal of the loudspeaker at each moment, without feedback loop, from the mechanical model (36) of the loudspeaker and desired dynamic values (Aref, dAref/dt, Vref, Xref).
Abstract translation: 用于从扬声器的机械模型（36）和期望的动态值（Aref，dAref / dt，Vref，Xref）计算每个时刻没有反馈回路的扬声器的激励信号的装置（70,80,90）。
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公开(公告)号：US20170013383A1
公开(公告)日：2017-01-12
申请号：US15011462
申请日：2016-01-29
Applicant: Yang Zhang
Inventor： Yang Zhang
CPC classification number: H04R29/003 , G01D5/20 , H04R3/007 , H04R7/16 , H04R9/025 , H04R19/005 , H04R2307/204
Abstract: A micro speaker is disclosed. The micro speaker includes a vibration system including a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome a suspension surrounding the conductive dome; a magnetic circuit system including a lower plate, a first magnetic part on the lower plate, a second magnetic part on the lower plate, a pole plate attached to the first magnetic part and including a plurality of units, one of the first and second magnetic part being a permanent magnet for forming a magnetic gap; capacitors formed by the conductive dome and the units of the pole plate for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement of the diaphragm.
Abstract translation: 公开了一种微型扬声器。 微型扬声器包括振动系统，该振动系统包括用于驱动隔膜的隔膜和音圈，所述隔膜包括导电圆顶罩，围绕导电圆顶的悬架; 磁路系统，包括下板，下板上的第一磁性部分，下板上的第二磁性部分，安装在第一磁性部分上的极板，包括多个单元，第一和第二磁体之一 部分是用于形成磁隙的永磁体; 由导电圆顶形成的电容器和极板的单元，用于根据隔膜的振动输出电信号，并用于检测隔膜的实时更换。
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公开(公告)号：US20170013378A1
公开(公告)日：2017-01-12
申请号：US15010949
申请日：2016-01-29
Applicant: Yang Zhang
Inventor： Yang Zhang
CPC classification number: H04R29/003 , H04R1/06 , H04R7/127 , H04R7/18 , H04R9/06 , H04R2307/204
Abstract: A micro speaker is disclosed. The micro speaker includes a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome a suspension surrounding the conductive dome; a conductive front cover located adjacent to and keeping a distance from the conductive dome; and a capacitor formed by the conductive dome and the conductive front cover for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement of the diaphragm.
Abstract translation: 公开了一种微型扬声器。 微型扬声器包括用于驱动隔膜的隔膜和音圈，所述隔膜包括导电圆顶，围绕导电圆顶的悬架; 与导电圆顶相邻并保持一定距离的导电前盖; 以及由导电圆顶和导电前盖形成的电容器，用于根据隔膜的振动输出电信号，并用于检测隔膜的实时更换。
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105.发明申请METHOD AND SYSTEM FOR MONITORING SPEAKER TEMPERATURE FOR SPEAKER PROTECTION 有权用于监听扬声器保护的扬声器温度的方法和系统公开(公告)号：US20160360331A1
公开(公告)日：2016-12-08
申请号：US14732498
申请日：2015-06-05
Applicant: Apple Inc.
Inventor： David T. Yeh
CPC classification number: H04R29/003 , G01K7/16 , G01K2217/00 , H04R3/007 , H04R3/04
Abstract: A method of monitoring speaker temperature for speaker protection starts by generating a low level inaudible noise signal and injecting the low level inaudible noise signal in an audio signal. The voice coil resistance estimate that estimates a resistance of a voice coil of a speaker is then computed. The voice coil resistance estimate changes while the speaker is being driven by the audio signal that includes the low level inaudible noise signal. The temperature estimate is then computed based on the voice coil resistance estimate. The level of the audio signal may be adjusted based on the temperature estimate. Other embodiments are also described.
Abstract translation: 通过产生低水平的听不到的噪声信号和将音频信号中的低电平听不到的噪声信号注入，监听用于扬声器保护的扬声器温度的方法。 然后计算估计扬声器的音圈的电阻的音圈电阻估计。 当扬声器由包括低水平听不见的噪声信号的音频信号驱动时，音圈电阻估计改变。 然后基于音圈电阻估计来计算温度估计。 可以基于温度估计来调整音频信号的电平。 还描述了其它实施例。
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Patent Agency Ranking
公开(公告)号：US09510101B1
公开(公告)日：2016-11-29
申请号：US14998747
申请日：2015-12-24
Applicant: Maxim Integrated Products, Inc.
Inventor： Robert Polleros
CPC classification number: H04R29/003 , H04R3/007 , H04R9/022 , H04R9/06 , H04R2430/01
Abstract: Aspects of the disclosure pertain to a system and method for providing temperature limiting for a voice coil of a speaker. The system and method provide the aforementioned temperature limiting based upon monitoring (e.g., measurement) of an amplifier output signal provided to the speaker. Providing the aforementioned temperature limiting promotes improved protection for the speaker.
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公开(公告)号：US20160329867A1
公开(公告)日：2016-11-10
申请号：US14707846
申请日：2015-05-08
Inventor： John Paul Lesso , Emmanuel Philippe Christian Hardy
CPC classification number: H03F1/3241 , H03F1/3258 , H03F1/3264 , H03F3/183 , H03F2200/03 , H03F2201/3233 , H04R3/08 , H04R5/04 , H04R29/003 , H04R2420/03 , H04R2460/03
Abstract: This application relates to audio amplifier circuitry (100). An amplifier module (103) is located in a signal path between an input (101) and an output (102). A detection module (106) is configured to detect a characteristic of a load (104) electrically coupled, in use, to the output. A distortion setting controller (107) is provided for selecting one of a plurality of stored distortion settings {pi} based on the detected characteristic of the load; and a pre-distortion module (105) is configured to apply a first transfer function to a signal in the signal path prior to said amplifier module. The first transfer function is based on the selected distortion setting and for at least one of the stored distortion settings the corresponding first transfer function comprises a non-linear distortion function.
Abstract translation: 本申请涉及音频放大器电路（100）。 放大器模块（103）位于输入（101）和输出（102）之间的信号路径中。 检测模块（106）被配置为检测在使用中电耦合到输出的负载（104）的特性。 提供失真设定控制器（107），用于根据检测到的负载特性来选择多个存储的失真设置{pi}中的一个; 并且预失真模块（105）被配置为在所述放大器模块之前对信号路径中的信号应用第一传递函数。 第一传递函数基于所选择的失真设置，并且对于存储的失真设置中的至少一个，对应的第一传递函数包括非线性失真函数。
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108.发明申请公开(公告)号：US20160286301A1
公开(公告)日：2016-09-29
申请号：US15034075
申请日：2014-11-04
Applicant: DANMARKS TEKNISKE UNIVERSITET
Inventor： Finn Agerkvist , Niccolo Antonello , Anders Christensen
CPC classification number: H04R1/22 , H04R3/08 , H04R9/025 , H04R9/06 , H04R29/003 , H04R2201/028 , H04R2209/022
Abstract: An electrodynamic loudspeaker assembly having an electrodynamic loudspeaker and first and second compensation filters. The electrodynamic loudspeaker includes a voice coil arranged in an air gap of a magnetically permeable structure and a compensation coil wound around a portion of the magnetically permeable structure. The first compensation filter filters an audio input signal to the loudspeaker assembly with a first frequency response to generate a voice coil compensation signal for application to the voice coil. The second compensation filter filters the audio input signal to the loudspeaker assembly with a second frequency response to generate a second compensation signal for application to the compensation coil. The first and second frequency responses, across a predetermined audio frequency range, suppress a time-varying or AC magnetic flux in the air gap caused by voice coil current such that magnetic flux modulation in the air gap of the loudspeaker is suppressed.
Abstract translation: 一种具有电动扬声器和第一和第二补偿滤波器的电动扬声器组件。 电动扬声器包括布置在导磁结构的气隙中的音圈和缠绕在导磁结构的一部分上的补偿线圈。 第一补偿滤波器以第一频率响应对扬声器组件的音频输入信号进行滤波，以产生用于音圈的音圈补偿信号。 第二补偿滤波器用第二频率响应将音频输入信号滤波到扬声器组件，以产生用于施加到补偿线圈的第二补偿信号。 在预定音频范围内的第一和第二频率响应抑制由音圈电流引起的气隙中的时变或AC磁通，从而抑制扬声器的气隙中的磁通量调制。
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109.发明申请METHOD, SYSTEM AND APPARATUS FOR LOUDSPEAKER EXCURSION DOMAIN PROCESSING 有权用于扬声器EXCURSION域处理的方法，系统和设备公开(公告)号：US20160157014A1
公开(公告)日：2016-06-02
申请号：US14555632
申请日：2014-11-27
Applicant: BLACKBERRY LIMITED
Inventor： Andre John VAN SCHYNDEL , James David GORDY , Brady Nicholas LASKA
IPC: H04R3/00
CPC classification number: H04R3/007 , H04R29/003 , H04R2499/11
Abstract: A method, system and apparatus for loudspeaker excursion domain processing are provided. At a device comprising: a processor, a loudspeaker comprising a voice coil, one or more devices for determining loudspeaker voltage and current as a function of time, t, and a memory storing a Bl product for the loudspeaker, loudspeaker currents I(t) and corresponding voltages V(t) are received at the processor from the one or more devices. A current-from-voltage transfer function HIV(ω) is derived from the loudspeaker currents I(t) and voltages V(t), as a function of frequency, ω. A Fourier space excursion-from-voltage transfer function HXV(ω) is determined, whos e form is constrained by parameters HIV(ω), Bl, Rvc, and Lvc, where: Rvc comprises a resistance of the voice coil; and Lvc comprises an inductance of the voice coil. Filter coefficients are determined using HXV(ω), which are used in a filter applied to an input signal for the loudspeaker.
Abstract translation: 提供了一种用于扬声器偏移域处理的方法，系统和装置。 在包括：处理器，包括音圈的扬声器，用于根据时间t确定扬声器电压和电流的一个或多个设备以及存储用于扬声器的B1乘积的存储器，扬声器电流I（t） 并且在处理器处从一个或多个设备接收相应的电压V（t）。 作为频率ω的函数，从扬声器电流I（t）和电压V（t）导出电流从电压传递函数HIV（ω）。 确定傅立叶空间偏移电压传递函数HXV（ω），其形式由参数HIV（ω），B1，Rvc和Lvc约束，其中：Rvc包括音圈的电阻; 并且Lvc包括音圈的电感。 使用HXV（ω）确定滤波器系数，其用于应用于扬声器的输入信号的滤波器。
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公开(公告)号：US20160142819A1
公开(公告)日：2016-05-19
申请号：US15003146
申请日：2016-01-21
Applicant: Trigence Semiconductor, Inc.
Inventor： Akira Yasuda , Jun-ichi Okamura
CPC classification number: H04R3/007 , H04R1/005 , H04R3/002 , H04R29/003
Abstract: A speaker control device in one embodiment includes an oscillator connected in parallel with a drive circuit for driving a speaker, the oscillator changing an oscillation frequency according to a voltage, and a control circuit detecting a variation in the oscillation frequency of the oscillator, and adjusting an amount of current supplied to the speaker by the drive circuit in the case where a variation in the voltage exceeds an allowable value.
Abstract translation: 一个实施例中的扬声器控制装置包括与用于驱动扬声器的驱动电路并联连接的振荡器，振荡器根据电压改变振荡频率，以及控制电路检测振荡器的振荡频率的变化，并且调整 在电压变化超过允许值的情况下由驱动电路提供给扬声器的电流量。
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