公开(公告)号：US5515445A

公开(公告)日：1996-05-07

申请号：US268464

申请日：1994-06-30

申请人： John C. Baumhauer, Jr. ,  Jeffrey P. McAteer ,  Alan D. Michel ,  Kevin D. Willis

发明人： John C. Baumhauer, Jr. ,  Jeffrey P. McAteer ,  Alan D. Michel ,  Kevin D. Willis

IPC分类号： H04R1/40 ,  H04R3/00 ,  H04R29/00

CPC分类号： H04R3/005 ,  H04R1/40 ,  H04R29/006

摘要： The long term average broad band gains of a plurality of individual signal channels, associated with a corresponding plurality of microphone elements, are electronically and dynamically adapted to one another. This is realized by periodically and dynamically processing the signals from the individual microphone elements. More specifically, the processing is such that the long term average broad band gain of the signal channels of the individual microphone elements is dynamically adjusted, an energy estimate of each microphone signal channel is averaged over the long term and the difference in energy between the signal channels is used to readjust the long term average broad band gain of the microphone signal channels to minimize those differences. In one embodiment, the adjustment is realized by obtaining an estimate of the energy of the adjusted signal in each microphone signal channel, obtaining the differences between the energy estimates and averaging the difference over the long term to obtain a gain differential correction factor which is used to readjust the long term broad band gain of at least one of the microphone signal channels to minimize the gain difference between the microphone signal channels. In another embodiment, a long term estimate of the energy in each microphone signal channel is obtained. A ratio of the energy estimates is obtained and used to adjust the long term average broad band gain of at least one of the microphone signal channels to equalize the gain in the microphone signal channels.

摘要翻译： 与相应的多个麦克风元件相关联的多个单独信号通道的长期平均宽带增益是电子地且动态地相互适应的。 这是通过周期性地和动态地处理来自各个麦克风元件的信号来实现的。 更具体地说，处理使得各个麦克风元件的信号通道的长期平均宽带增益被动态地调节，每个麦克风信号通道的能量估计在长期上被平均，并且信号之间的能量差异 通道用于重新调整麦克风信号通道的长期平均宽带增益以最小化这些差异。 在一个实施例中，通过获得每个麦克风信号通道中经调整的信号的能量的估计来实现调整，获得能量估计之间的差异并长期平均差异以获得使用的增益差分校正因子 以重新调整麦克风信号通道中的至少一个的长期宽带增益以最小化麦克风信号通道之间的增益差。 在另一个实施例中，获得每个麦克风信号通道中的能量的长期估计。 获得能量估计的比率并用于调整至少一个麦克风信号通道的长期平均宽带增益以均衡麦克风信号通道中的增益。

公开(公告)号：US5506908A

公开(公告)日：1996-04-09

申请号：US268462

申请日：1994-06-30

申请人： John C. Baumhauer, Jr. ,  Jeffrey P. McAteer ,  Alan D. Michel ,  Christopher T. Welsh ,  Kevin D. Willis

发明人： John C. Baumhauer, Jr. ,  Jeffrey P. McAteer ,  Alan D. Michel ,  Christopher T. Welsh ,  Kevin D. Willis

IPC分类号： H04R1/40 ,  H04R3/00

CPC分类号： H04R3/005 ,  H04R1/406

摘要： Full directional pickup coverage is realized by employing a pickup arrangement which provides a plurality of audio polar directivity patterns, i.e., directional beams. These polar directivity patterns are formed in a unique embodiment of the invention by generating a plurality of frequency independent time-delayed versions of a corresponding plurality of spatially sampled signals and by combining each of the plurality of spatially sampled signals with one or more selected ones of the time delayed versions to generate at least a similar plurality of polar directivity patterns. More specifically, the spatially sampled signals are combined with the delayed versions in such a manner that a greater number of polar directivity patterns can be considered than the number of spatially sampled signals. In a specific embodiment, the spatially sampled signals are acoustic (audio) and a plurality of microphones arranged in a predetermined spatial configuration is employed to obtain them.

摘要翻译： 通过采用提供多个音频极性方向性图案（即，定向波束）的拾取装置来实现全方向拾取覆盖。 这些极性方向性图案通过产生相应多个空间采样信号的多个频率独立的时间延迟版本并通过将多个空间采样信号中的每一个与一个或多个选定的空间采样信号 时间延迟版本以生成至少相似的多个极坐标方向图。 更具体地，空间采样的信号与延迟版本组合，使得可以考虑比空间采样信号的数量更多的极坐标方向性图案。 在具体实施例中，空间采样的信号是声学（音频），并且采用以预定的空间配置排列的多个麦克风来获得它们。

公开(公告)号：US07751575B1

公开(公告)日：2010-07-06

申请号：US10670899

申请日：2003-09-25

申请人： John C. Baumhauer, Jr. ,  Larry A. Marcus ,  Christopher T. Welsh ,  Alan D. Michel ,  Jeffrey Phillip McAteer

发明人： John C. Baumhauer, Jr. ,  Larry A. Marcus ,  Christopher T. Welsh ,  Alan D. Michel ,  Jeffrey Phillip McAteer

IPC分类号： H04R3/00

CPC分类号： H04R3/005 ,  H04R2410/05

摘要： The microphone system for communication devices that comprises an electric circuit comprising two microphone elements connected to a signal flow processor. This processor uses a digital signal processor or comparable analog circuitry to provide a particular electrical time delay (τ) to one of the microphone elements (nearest the ear or loudspeaker) and a compatible amplitude gain (Gm1) to the other microphone element (nearest the user's mouth) in order to substantially reduce the external acoustic coupling and echo of communication devices in the receive and doubletalk state. Further, this processing system allows the microphone system to reduce the pickup of ambient noise in the send and idle state, while still being sensitive to the user's speech.

摘要翻译： 用于通信设备的麦克风系统，其包括电路，该电路包括连接到信号流处理器的两个麦克风元件。 该处理器使用数字信号处理器或可比较的模拟电路来向麦克风元件之一（最靠近耳朵或扬声器）提供特定的电时间延迟（τ），并将兼容的振幅增益（Gm1）提供给另一个麦克风元件（最接近 用户口），以便大大减少接收和双向通信状态下的通信设备的外部声耦合和回声。 此外，该处理系统允许麦克风系统在发送和空闲状态下减少环境噪声的拾取，同时仍然对用户的语音敏感。

公开(公告)号：USD432119S

公开(公告)日：2000-10-17

申请号：US107397

申请日：1999-07-02

申请人： Jeffrey P. McAteer ,  Christopher T. Welsh ,  Alan D. Michel

设计人： Jeffrey P. McAteer ,  Christopher T. Welsh ,  Alan D. Michel

公开(公告)号：US20080292066A1

公开(公告)日：2008-11-27

申请号：US11807470

申请日：2007-05-26

申请人： Christopher Todd Welsh ,  Alan D. Michel ,  Michael Thomas Frank ,  John Charles Baumhauer, JR. ,  Larry Allen Marcus

发明人： Christopher Todd Welsh ,  Alan D. Michel ,  Michael Thomas Frank ,  John Charles Baumhauer, JR. ,  Larry Allen Marcus

IPC分类号： H04M11/00

CPC分类号： H04M1/2475 ,  H04R25/554

摘要： A telephone handset that includes both a speaker and a secondary flux coil is provided. The secondary flux coil provides improved inductive coupling between the handset and a hearing aid. Due to the wiring configuration of the handset, the speaker and the secondary flux coil can be independently filtered, thus providing means for independently optimizing the performance of both the speaker and the secondary flux coil. Suitable filters include both passive circuits and digital signal processors.

摘要翻译： 提供了包括扬声器和次级磁通线圈的电话听筒。 次级通量线圈提供手机和助听器之间的改进的电感耦合。 由于手机的布线配置，扬声器和次级磁通线圈可以被独立过滤，从而提供用于独立地优化扬声器和次级磁通线圈的性能的装置。 合适的滤波器包括无源电路和数字信号处理器。

公开(公告)号：US5625690A

公开(公告)日：1997-04-29

申请号：US152769

申请日：1993-11-15

申请人： Alan D. Michel ,  Robert E. Reinke

发明人： Alan D. Michel ,  Robert E. Reinke

IPC分类号： G06F21/22 ,  G06F1/00 ,  G06F13/00 ,  G06F21/00 ,  G06Q10/00 ,  G09C1/00 ,  H04L9/00

CPC分类号： G06F21/123 ,  G06F2221/2107

摘要： A pay per use system for of the unauthorized use of computer software. An encryption program encodes original software to produce secured software. The encoding is accomplished by using cryptographic techniques. In order to use the software, a user must call a telephone number to receive the cryptographic keys necessary to decrypt the secured software. Thus, users must pay for each use of the secured software. The system allows software developers to freely distribute the secured software. Copies of the secured software may be freely made, because payment is based on each use of the software not on each copy of the software.

摘要翻译： 用于未经授权使用计算机软件的付费系统。 加密程序对原始软件进行编码以产生安全的软件。 编码是通过使用加密技术完成的。 为了使用该软件，用户必须拨打电话号码以接收解密安全软件所必需的加密密钥。 因此，用户必须为每次使用安全软件付费。 该系统允许软件开发人员自由分发安全软件。 安全软件的副本可以自由地进行，因为支付是基于软件的每个副本而不是软件的每个使用。

公开(公告)号：US6147979A

公开(公告)日：2000-11-14

申请号：US909893

申请日：1997-08-12

申请人： Alan D. Michel ,  David L. Rowley

发明人： Alan D. Michel ,  David L. Rowley

IPC分类号： H04M9/08 ,  H04B3/23

CPC分类号： H04M9/082

摘要： A system and method for echo cancellation in a communication system having a digital echo canceller and an analog echo canceller for analog reduction of cross coupling echo components in an analog output signal when in analog form before digital processing by the digital echo canceller. An analog cancellation signal is generated which is substantially the same as the acoustic coupling echo component in the analog output signal before digital processing by the digital echo canceller. The analog echo cancellation signal is combined with the analog output signal to reduce the cross coupling echo component before digital processing by the digital echo canceller.

摘要翻译： 一种在具有数字回声消除器和模拟回声消除器的通信系统中用于回波消除的系统和方法，用于在数字回声消除器的数字处理之前以模拟形式模拟减少模拟输出信号中的交叉耦合回波分量。 产生与由数字回声消除器进行数字处理之前的模拟输出信号中的声耦合回波分量基本上相同的模拟消除信号。 模拟回波消除信号与模拟输出信号组合，以减少数字回声消除器进行数字处理之前的交叉耦合回波分量。

公开(公告)号：US5268666A

公开(公告)日：1993-12-07

申请号：US812447

申请日：1991-12-23

申请人： Alan D. Michel ,  Randal D. Wood

发明人： Alan D. Michel ,  Randal D. Wood

IPC分类号： G06F19/00 ,  H02J13/00 ,  H04L12/28 ,  H04M1/247 ,  H04M1/723 ,  H04M11/00 ,  H04Q9/00 ,  H04B3/00 ,  H04L27/00

CPC分类号： H04L12/282 ,  H02J13/0017 ,  H04L12/2803 ,  H04M1/21 ,  H04M1/723 ,  H04M11/00 ,  Y02B70/325 ,  Y02B90/2607 ,  Y04S20/228 ,  Y04S40/12

摘要： A controller that includes a number of switches is associated with a first appliance that has a number of operating states. In at least one of the operating states of the first appliance, the controller responds to certain switch actuations by causing it to perform a task; but when it is in another operating state, the same switch actuations have no meaning insofar as the first appliance is concerned, so the controller responds by transmitting data signals to a second appliance to have it perform a similar task. In this manner, a single controller can be used to control a number of appliances when a particular switch actuation has no meaning in the context of controlling the associated appliance. In an illustrative embodiment of the invention, the keypad of a telephone set is used to select a particular television station. Control signals are sent by the telephone to the television by spread spectrum data transmission over an AC power line. The data transmission format used is in accordance with the CEBUS.RTM. standard promulgated by the Electronic Industries Association.

公开(公告)号：US07787643B2

公开(公告)日：2010-08-31

申请号：US11186564

申请日：2005-07-21

申请人： Alan D. Michel

发明人： Alan D. Michel

IPC分类号： H04R25/00

CPC分类号： H04R19/01

摘要： A system and method for RF immunity of an electret condenser microphone. In one embodiment, the microphone comprises a printed wire board, an amplifier, a capacitor. The amplifier and the capacitor are mounted on the printed wire board such that longitudinal axis, i.e., the axis defined by the line between the output pin and the ground pin, of the capacitor is perpendicular to the longitudinal axis of the amplifier. According to one embodiment of the method of the present invention, an electret condenser microphone according to the present invention is provided, and current is provided to the capacitor to result in the creation of a magnetic field about the longitudinal axis of the capacitor. The magnetic field created is positioned such that it does not significantly contribute to the generation of RF current in the amplifier.

摘要翻译： 驻极体电容式麦克风的RF抗扰度的系统和方法。 在一个实施例中，麦克风包括印刷线路板，放大器，电容器。 放大器和电容器安装在印刷线路板上，使得电容器的纵向轴线，即由输出引脚和接地引脚之间的线限定的轴线垂直于放大器的纵向轴线。 根据本发明的方法的一个实施例，提供了根据本发明的驻极体电容式麦克风，并且电流被提供给电容器以导致围绕电容器的纵向轴线产生磁场。 所产生的磁场被定位成使得其不显着地有助于放大器中的RF电流的产生。

公开(公告)号：US4959852A

公开(公告)日：1990-09-25

申请号：US110243

申请日：1987-10-19

申请人： Ronald J. Kern ,  Alan D. Michel ,  William V. Powell, Jr.

发明人： Ronald J. Kern ,  Alan D. Michel ,  William V. Powell, Jr.

IPC分类号： H04M1/65

CPC分类号： H04M1/6505 ,  H04M1/6515

摘要： A telephone answering machine having solid state storage of an outgoing announcement (OGA) is improved by magnetic tape apparatus 120 for providing backup protection of the OGA in the event of a power failure. Also stored on the magnetic tape is the time duration of the OGA. Analog to digital conversion of the OGA, for storage in Dynamic Random Access Memories 210, 220 and 230, proceeds at a sampling rate that is inversely proportional to the time duration of the OGA to assure that the available memory space is fully utilized.

摘要翻译： 具有输出通知（OGA）的固态存储的电话应答机由磁带装置120改进，用于在电源故障的情况下提供OGA的备份保护。 也存储在磁带上的是OGA的持续时间。 用于存储在动态随机存取存储器210,220和230中的OGA的模数转换以与OGA的持续时间成反比的采样速率进行，以确保可用的存储器空间得到充分利用。