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公开(公告)号：US4696036A
公开(公告)日：1987-09-22
申请号：US775437
申请日：1985-09-12
申请人： Stephen D. Julstrom
发明人： Stephen D. Julstrom
CPC分类号： H04S3/00
摘要： A system for receiving a plurality of audio input signals encoded with sound directions drives a plurality of loudspeakers which are physically arranged to generate apparent sound images in relation to encoded sound directions. The encoded input signals are analyzed for determining whether one encoded sound direction exceeds a predominance threshold with respect to other encoded sound directions. Logic control signals are generated for indicating directionality of predominant sound directions. In response to generated logic signals, the directional stability of the apparent sound images is enhanced.
摘要翻译： 用于接收用声音方向编码的多个音频输入信号的系统驱动多个扬声器，这些扬声器被物理布置成相对于已编码的声音方向产生明显的声音图像。 对编码的输入信号进行分析，以确定一个已编码的声音方向是否超过相对于其他编码声音方向的优势阈值。 生成用于指示主要声音方向的方向性的逻辑控制信号。 响应于产生的逻辑信号，视觉声音图像的方向稳定性得到增强。
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12.发明授权Rechargeable battery assemblies and methods of constructing rechargeable battery assemblies 有权可充电电池组件和可充电电池组件的构造方法公开(公告)号：US08460816B2
公开(公告)日：2013-06-11
申请号：US12576106
申请日：2009-10-08
CPC分类号： H01M10/46 , H01F38/14 , H01F2003/005 , H01M10/425 , H02J7/025 , H02J50/12 , H02J50/70 , Y10T29/49108
摘要： Rechargeable battery assemblies and methods of constructing rechargeable battery assemblies are provided. Rechargeable battery assemblies can include a storage cell and receive circuitry comprising a receive coil operatively connected to receive control circuitry, the receive coil configured to receive inductively coupled current, the receive control circuitry configured to rectify the current and communicate charging power to the storage cell, the coil wound around a shield/core comprising magnetically permeable material, and the shield/core disposed around the storage cell. Methods of constructing rechargeable battery assemblies can include disposing a shield/core comprising magnetically permeable material around a storage cell; winding a receive coil around the shield/core; and providing the receive coil in operative connection with receive control circuitry and the storage cell, the receive coil configured to receive inductively coupled current, and the receive control circuitry configured to rectify the current and communicate charging power to the storage cell.
摘要翻译： 提供可充电电池组件和构造可充电电池组件的方法。 可再充电电池组件可以包括存储单元和接收电路，接收电路包括可操作地连接到接收控制电路的接收线圈，接收线圈被配置为接收电感耦合电流，接收控制电路被配置为对电流进行整流并且向存储单元通信充电电力， 卷绕在包括导磁材料的屏蔽/芯体周围的线圈，以及设置在存储单元周围的屏蔽/芯。 构造可充电电池组件的方法可以包括在存储单元周围设置包括导磁材料的屏蔽/芯体; 围绕屏蔽/芯线缠绕接收线圈; 以及将所述接收线圈与所述接收控制电路和所述存储单元操作连接，所述接收线圈被配置为接收电感耦合电流，并且所述接收控制电路被配置为对所述电流进行整流并且向所述存储单元传送充电电力。
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公开(公告)号：US08160261B2
公开(公告)日：2012-04-17
申请号：US11334758
申请日：2006-01-18
IPC分类号： H04R29/00
CPC分类号： H04R29/007 , H03G3/32 , H03G9/18 , H04R1/1016 , H04R2420/07
摘要： An earphone monitoring system is disclosed that provides for user information and control regarding ambient and monitored sound levels.
摘要翻译： 公开了一种耳机监视系统，其提供关于环境和监视的声级的用户信息和控制。
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14.发明申请Systems and Methods for Maintaining a Drive Signal to a Resonant Circuit at a Resonant Frequency 有权以共振频率将驱动信号维持到谐振电路的系统和方法公开(公告)号：US20110084752A1
公开(公告)日：2011-04-14
申请号：US12576065
申请日：2009-10-08
IPC分类号： G06G7/18
摘要： Systems and methods for maintaining a drive signal to a resonant circuit at a resonant frequency are provided. A system for maintaining a drive signal to a resonant circuit at a resonant frequency can include: an oscillator configured to provide an output to a phase comparator and a drive circuit, the drive circuit configured to provide a drive signal to a resonant circuit; a phase detector configured to receive a filtered version of the drive signal from the resonant circuit and provide a phase-indicating signal to the phase comparator; and the phase comparator, wherein the phase comparator is configured to provide a signal based on the phase difference between the oscillator output and the phase-indicating signal, wherein the signal from the phase comparator is used to control the frequency of the oscillator such that the phase difference converges to a fixed value.
摘要翻译： 提供了以谐振频率将驱动信号保持到谐振电路的系统和方法。 用于将谐振电路的驱动信号保持在谐振频率的系统可以包括：被配置为向相位比较器和驱动电路提供输出的振荡器，所述驱动电路被配置为向谐振电路提供驱动信号; 相位检测器，被配置为从所述谐振电路接收所述驱动信号的滤波版本，并向所述相位比较器提供相位指示信号; 和相位比较器，其中相位比较器被配置为基于振荡器输出和相位指示信号之间的相位差来提供信号，其中来自相位比较器的信号用于控制振荡器的频率，使得 相位差收敛于固定值。
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公开(公告)号：US20110084653A1
公开(公告)日：2011-04-14
申请号：US12576036
申请日：2009-10-08
摘要： Inductively coupled battery charging systems and methods are provided. Transmit circuitry can include a transmit coil operatively part of a transmit resonant circuit exhibiting resonance at a transmit resonant frequency and an unloaded Q value of at least about 20. Transmit coil can generate a magnetic field at about the transmit resonant frequency. Rechargeable battery assembly can include a receive coil configured to receive inductively coupled current, and circuitry configured to rectify the current and communicate charging power to a storage cell. Receive coil can be part of a receive resonant circuit that exhibits resonance at about the transmit resonant frequency. Transmit circuitry can be configured to regulate alternating current produced in the transmit coil based on current flowing in the transmit resonant circuit and/or maintain the magnetic field at about the transmit resonant frequency by maintaining about a ninety degree phase shift between a square wave input and output.
摘要翻译： 提供了电感耦合电池充电系统和方法。 发射电路可以包括发射谐振电路的可操作部分的发射线圈，其在发射谐振频率处呈现谐振，并且至少约20的无载Q值。发射线圈可以在大约发射谐振频率处产生磁场。 可再充电电池组件可以包括被配置为接收电感耦合电流的接收线圈，以及被配置为对电流进行整流并将充电电力传送到存储单元的电路。 接收线圈可以是接收谐振电路的一部分，其在大约发射谐振频率处表现出共振。 发射电路可以被配置为基于在发射谐振电路中流动的电流来调节在发射线圈中产生的交流电流和/或通过在方波输入和方波输入之间保持大约90度相移来将磁场维持在大约发射谐振频率处 输出。
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公开(公告)号：US07099486B2
公开(公告)日：2006-08-29
申请号：US10356290
申请日：2003-01-31
IPC分类号： H04R25/00
CPC分类号： H04R25/43 , H04R25/502 , H04R25/552 , H04R25/554 , H04R2225/51 , H04R2225/61
摘要： A hearing improvement device using a multi-coil coupling system and methods for operating such a device are disclosed. An embodiment of the present invention may use an array microphone to provide highly directional reception. The received audio signal may be filtered, amplified, and converted into a magnetic field for coupling to the telecoil in a conventional hearing aid. Multiple transmit inductors may be used to effectively couple to both in-the-ear and behind-the-ear type hearing aids, and an additional embodiment is disclosed which may be used with an earphone, for users not requiring a hearing aid.
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17.发明授权公开(公告)号：US06694034B2
公开(公告)日：2004-02-17
申请号：US09752806
申请日：2000-12-28
IPC分类号： H04R2500
CPC分类号： H04R25/43 , H04R25/502 , H04R25/552 , H04R25/554 , H04R2225/51 , H04R2225/61
摘要： A hearing aid system for selecting one of two audio sources is disclosed. The hearing aid system comprises hearing aid circuitry, such as, for example, a hearing aid amplifier and speaker, as well as a primary source for audio, such as, for example, a hearing aid microphone. The hearing aid system also comprises a secondary source for audio, such as, for example, a directional microphone worn or otherwise supported by a person speaking or by the hearing aid user, as well as detection and switch circuitry to select which of the primary and secondary audio sources should be directed to the hearing aid circuitry. In operation, the detection and switch circuitry receives a signal transmission (preferably wireless) from the secondary audio source and determines whether the signal received is desirable. If the signal transmission is desirable, the circuitry selects that signal for coupling with the hearing aid circuitry. If the transmission signal is not desirable, the circuitry selects the signals from the primary audio source for coupling with the hearing aid circuitry.
摘要翻译： 公开了一种用于选择两个音频源中的一个的助听器系统。 助听器系统包括助听器电路，例如助听器放大器和扬声器，以及音频的主要源，例如助听器麦克风。 助听器系统还包括用于音频的次级源，例如由讲话者或助听器用户佩戴或以其他方式支持的定向麦克风，以及检测和开关电路，以选择主要和 辅助音频源应该被引导到助听器电路。 在操作中，检测和开关电路从辅助音频源接收信号传输（最好是无线），并确定接收到的信号是否是可取的。 如果信号传输是期望的，则电路选择该信号以与助听器电路耦合。 如果传输信号不是期望的，则电路选择来自主音频源的信号以与助听器电路耦合。
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公开(公告)号：US5297210A
公开(公告)日：1994-03-22
申请号：US866747
申请日：1992-04-10
申请人： Stephen D. Julstrom
发明人： Stephen D. Julstrom
摘要： An improved automatic microphone actuation control system. The system exhibits a high degree of resistance to inappropriate secondary microphone actuation by reverberant sound, even when two or more microphones in a system are operated at significantly different electroacoustic gains. The system further exhibits improved actuation sensitivity to local conference room speech occurring simultaneously with teleconference loudspeaker sound which is strongly coupled acoustically to the microphones. A Reverb Inhibit Bus, which is the maximum of a reduced level speaker inhibit signal and substantially attenuated versions of the DC microphone signal level representations, drives the microphone channels' noise adapting threshold circuitry. Such circuitry is driven in a manner to inhibit microphone actuation for teleconference loudspeaker sound reverberation and reverberation of local conference room speech which has already actuated a microphone. Further, a stronger level speaker inhibit signal is applied to each microphone channel through a direct inhibit bus. This inhibits microphone actuation by directly coupled loudspeaker sound, while not modifying the noise adapting threshold.
摘要翻译： 改进的自动麦克风驱动控制系统。 即使系统中的两个或更多个麦克风在显着不同的电声增益下操作，该系统表现出对混响声音不恰当的二次麦克风致动的高度抵抗力。 该系统进一步显示出与电话会议扬声器声音同时出现的本地会议室语音的提高的致动灵敏度，该声音扬声器声音被强烈地耦合到麦克风。 混响抑制总线，其是降低电平的扬声器禁止信号的最大值和DC麦克风信号电平表示的基本上衰减的版本，驱动麦克风通道的噪声适配阈值电路。 这种电路被驱动以阻止麦克风致动，用于电话会议扬声器声音混响和已经致动麦克风的本地会议室语音的混响。 此外，通过直接禁止总线对每个麦克风通道施加更强的扬声器禁止信号。 这通过直接耦合的扬声器声音抑制麦克风致动，同时不修改噪声适应阈值。
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公开(公告)号：US4991166A
公开(公告)日：1991-02-05
申请号：US264145
申请日：1988-10-28
申请人： Stephen D. Julstrom
发明人： Stephen D. Julstrom
IPC分类号： H04M9/10
CPC分类号： H04M9/10
摘要： An echo reduction circuit that may be used to reduce the returned echo in communication links with signficant delay. By making effective use of the echo-masking effect of near-simultaneous desired speech energy and the redundancy present in normal speech, the circuit makes possible wide bandwidth, non-choppy, perceived distortion-free, and perceived echo-free teleconferencing. The circuit performs a rapid time constant, semi-waveform-following partial attenuation of a preemphasized version of the returning transmit signal proportional to a calculation of the likely strength of the returned echo in relation to the strength of the local speech.
摘要翻译： 回波减少电路，可用于减少通信链路中返回的回波，并具有明显的延迟。 通过有效利用近似同时所需的语音能量和正常语音中存在的冗余的回波屏蔽效应，该电路可以实现宽带宽，无波动，感知到的无失真和无回声的电话会议。 电路执行快速时间常数，半波形跟随部分衰减的预加重版本的返回发射信号，与计算返回的回波相对于本地语音强度的可能强度成比例。
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