公开(公告)号：US07689233B2

公开(公告)日：2010-03-30

申请号：US11501701

申请日：2006-08-10

申请人： James Cao ,  James Maxwell

发明人： James Cao ,  James Maxwell

IPC分类号： H04W4/00

CPC分类号： H04M1/6041 ,  H04M1/6025 ,  H04M1/72502 ,  H04W88/02

摘要： A remote switching for handset handsfree speakerphone operation in a telephone system including an “off of shelf” analog half duplex switching speakerphone IC on a base unit and routs handset handsfree signals via a RF link to and from a microphone and a speakerphone of at least one cordless handset. The remote switching provides a handset handsfree feature on any analog and digital platform that is not equipped with DSPs or other digital means for embedded speakerphone algorithms.

摘要翻译： 一种用于在电话系统中的手机免提扬声器电话的远程切换，其包括在基本单元上的“非现成”模拟半双工切换扬声器电话IC，并且经由RF链路将手机免提信号传送到麦克风和至少一个 无绳手机 远程开关在任何没有配备DSP或其他数字装置的模拟和数字平台上提供手机免提功能，用于嵌入式扬声器电话算法。

公开(公告)号：US20100057471A1

公开(公告)日：2010-03-04

申请号：US12248426

申请日：2008-10-09

申请人： Hongwei Kong ,  Nelson Sollenberger ,  Taiyi Cheng ,  Mark Hahm ,  Todd L. Brooks ,  Xicheng Jiang

发明人： Hongwei Kong ,  Nelson Sollenberger ,  Taiyi Cheng ,  Mark Hahm ,  Todd L. Brooks ,  Xicheng Jiang

IPC分类号： G10L19/00

CPC分类号： H04M1/6025 ,  H04R1/1091 ,  H04R25/554 ,  H04R27/00 ,  H04R2227/003 ,  H04R2420/07

摘要： Aspects of a method and system for processing audio signals via separate input and output processing paths are provided. In this regard, a hardware audio CODEC comprising one or more audio inputs and one or more audio outputs and may be enabled to route, via one or more switching elements, audio signals from any of the inputs to any of the outputs. The CODEC may be enabled to simultaneously process a plurality of audio signals based on a configuration of the switching elements. Upstream from the switching elements, received audio signals may be processed independent of an output to which the may be communicated. Downstream from said switching elements audio signals may be processed independent of an input via which the signals were received.

摘要翻译： 提供了通过单独的输入和输出处理路径处理音频信号的方法和系统的方面。 在这方面，包括一个或多个音频输入和一个或多个音频输出的硬件音频编解码器，并且可以使得能够经由一个或多个开关元件将来自任何输入的音频信号路由到任何输出。 可以使CODEC可以基于开关元件的配置来同时处理多个音频信号。 从开关元件的上游，接收的音频信号可以独立于可以被传送到的输出进行处理。 来自所述开关元件的下游音频信号可以独立于接收信号的输入进行处理。

公开(公告)号：US20090186608A1

公开(公告)日：2009-07-23

申请号：US12358045

申请日：2009-01-22

申请人： Kwang Min LEE ,  Mathew LEE ,  Jae Suk KIM ,  Seong Hyeon LEE

发明人： Kwang Min LEE ,  Mathew LEE ,  Jae Suk KIM ,  Seong Hyeon LEE

IPC分类号： H04W4/00

CPC分类号： H04M1/6025 ,  H04M3/568 ,  H04M7/0033 ,  H04M7/1235 ,  H04M2207/187 ,  H04M2250/62 ,  H04W76/40 ,  H04W88/06

摘要： A multi-standby mobile terminal and a method for providing a host function between different networks in a multi-standby mobile terminal are provided. The method includes creating a call from a first mobile terminal, as a multi-standby mobile terminal, to a second mobile terminal on a first network and to a third mobile terminal on a second network, outputting a received voice signal through a speaker from the first mobile terminal, when the voice signal is received from one of the second mobile terminal and third mobile terminal, and, transmitting, from the first mobile terminal, the received voice signal through a loopback process to the one of the second mobile terminal and third mobile terminal that does not transmit the voice signal.

摘要翻译： 提供一种多待机移动终端和用于在多待机移动终端中的不同网络之间提供主机功能的方法。 该方法包括从作为多待机移动终端的第一移动终端建立到第一网络上的第二移动终端和第二网络上的第三移动终端的呼叫，通过来自所述第二移动终端的扬声器输出接收到的语音信号 第一移动终端，当从第二移动终端和第三移动终端之一接收到语音信号时，通过环回处理从第一移动终端发送接收的语音信号到第二移动终端和第三移动终端 移动终端不传输语音信号。

公开(公告)号：US20070230677A1

公开(公告)日：2007-10-04

申请号：US11757775

申请日：2007-06-04

申请人： Jeffrey Rodman ,  David Drell

发明人： Jeffrey Rodman ,  David Drell

IPC分类号： H04M3/42

CPC分类号： H04M3/56 ,  H04L12/66 ,  H04M1/6025 ,  H04M3/567 ,  H04M3/568 ,  H04M7/0057 ,  H04M11/06 ,  H04M11/066

摘要： A system and method for dynamically establishing optimum audio quality in an audio conference is disclosed. A connection with one or more remote communication devices is initially established. An available data rate associated with the connection is then determined. Next, a bandwidth is assigned based on the available data rate. Finally, the assigned bandwidth is adjusted according to the available data rate.

摘要翻译： 公开了一种在音频会议中动态建立最佳音频质量的系统和方法。 最初建立与一个或多个远程通信设备的连接。 然后确定与连接相关联的可用数据速率。 接下来，基于可用数据速率分配带宽。 最后，根据可用数据速率调整分配的带宽。

公开(公告)号：US20070033030A1

公开(公告)日：2007-02-08

申请号：US11489267

申请日：2006-07-18

申请人： Oded Gottesman

发明人： Oded Gottesman

IPC分类号： G10L15/20

CPC分类号： H04M1/24 ,  H04M1/6025

摘要： Methods and systems for providing automated measurement, adaptation and setup of voice communication system using one or more reference signals. An audio device is automatically configured at or near commencement of establishment of a communications path, such that the configuration is performed in a minimally humanly discernible manner. The methods comprise transmitting one or more predetermined reference signals into an acoustic environment, receiving the transmitted signals from the acoustic environment to thereby provide received signals, and adjusting at least one of a speaker gain and a microphone gain in response to the received signals. Adjustment of audio circuits, such as amplifiers, may be performed based on a signal analysis of the received signals. Optionally, computing parameters and/or generating signals may be performed based on the signal analysis, and the computed parameters may be inputted to auxiliary systems such as audio enhancement, voice activity detector, speech coding and/or speech recognition systems. Computed parameters may be representative of background noise, delay between a generated audible signal and a corresponding input signal captured by a microphone, signal level, gain, energy, and other parameters that may be useful for subsequent audio recording, storage, enhancement, coding, or recognition system.

摘要翻译： 提供使用一个或多个参考信号的语音通信系统的自动测量，适应和建立的方法和系统。 音频设备在建立通信路径的开始时或在其附近自动配置，使得以最低限度的人为可辨别的方式执行配置。 所述方法包括将一个或多个预定参考信号发送到声环境中，从声环境接收所传输的信号，从而提供接收到的信号，以及响应于接收到的信号调整扬声器增益和麦克风增益中的至少一个。 可以基于接收到的信号的信号分析来执行诸如放大器之类的音频电路的调整。 可选地，可以基于信号分析来执行计算参数和/或生成信号，并且可以将所计算的参数输入到辅助系统，例如音频增强，语音活动检测器，语音编码和/或语音识别系统。 计算参数可以代表背景噪声，所生成的可听信号与由麦克风捕获的相应输入信号之间的延迟，信号电平，增益，能量以及可用于后续音频记录，存储，增强，编码的其它参数， 或识别系统。

公开(公告)号：US07054436B2

公开(公告)日：2006-05-30

申请号：US10909906

申请日：2004-08-02

申请人： Fredrik Stenmark

发明人： Fredrik Stenmark

IPC分类号： H04M1/00

CPC分类号： H04M1/6025 ,  H04M1/6033

摘要： Communication terminals, methods, and computer program products are provided that sense background noise via a speaker that is also used to generate sounds. In some methods of operating a communication terminal, and a speaker signal is supplied to a first speaker to generate sound therefrom, a noise sensing signal is received from the first speaker. The noise sensing signal includes a contribution associated with background noise that is incident to the first speaker. Presence of the background noise in the noise sensing signal is determined.

摘要翻译： 提供通信终端，方法和计算机程序产品，其通过也用于产生声音的扬声器感测背景噪声。 在一些操作通信终端的方法中，并且扬声器信号被提供给第一扬声器以产生声音，从第一扬声器接收噪声感测信号。 噪声感测信号包括与入射到第一扬声器的背景噪声相关联的贡献。 确定噪声检测信号中背景噪声的存在。

公开(公告)号：US20040022375A1

公开(公告)日：2004-02-05

申请号：US10378709

申请日：2003-03-03

发明人： Jeffrey Rodman ,  David Drell

IPC分类号： H04M011/00

CPC分类号： H04M3/56 ,  H04L12/66 ,  H04M1/6025 ,  H04M3/567 ,  H04M3/568 ,  H04M7/0057 ,  H04M11/06 ,  H04M11/066

摘要： A method for communicating data during an audio conference is provided. Digital data is received from a data source. The digital data is then modulated onto a carrier signal. The modulated carrier signal is subsequently combined with an audio signal of the audio conference. The combined signal is communicated to at least one remote communication device. Upon receipt by the at least one remote communication device, the combined signal is separated into the audio signal and the modulated carrier signal. The modulated carrier signal is then demodulated to extract the digital data. Both the digital data and the audio signal are output by the at least one remote communication device.

摘要翻译： 提供了一种在音频会议期间传送数据的方法。 从数据源接收数字数据。 然后将数字数据调制到载波信号上。 调制的载波信号随后与音频会议的音频信号组合。 组合信号被传送到至少一个远程通信设备。 在由至少一个远程通信设备接收时，组合信号被分离成音频信号和经调制的载波信号。 然后解调调制的载波信号以提取数字数据。 数字数据和音频信号都由至少一个远程通信设备输出。

公开(公告)号：US5742676A

公开(公告)日：1998-04-21

申请号：US721913

申请日：1996-09-27

申请人： Fernand Courtois

发明人： Fernand Courtois

IPC分类号： H04M1/00 ,  H04M1/60 ,  H04M1/76 ,  H04M19/08 ,  H04M1/72

CPC分类号： H04M1/76 ,  H04M1/6025

摘要： A circuit comprising a transistor (T1) is connected in series to a resistor (RM) for measuring the line current; the whole is connected to the terminals (1,2) of the line. According to the invention, a light-emitting diode (18) is connected in series to a variable current source (20), the whole being connected in parallel to the emitter/collector path of the transistor (T1), and the variable current source, which receives a monitoring signal that represents the line current, produces a current that varies between a zero current and a maximum current for an average line current that varies between a low threshold and a high threshold.

摘要翻译： 包括晶体管（T1）的电路串联连接到用于测量线路电流的电阻器（RM）; 整个连接到线路的终端（1,2）。 根据本发明，发光二极管（18）串联连接到可变电流源（20），其整体与晶体管（T1）的发射极/集电极路径并联连接，并且可变电流源 ，其接收代表线路电流的监视信号，产生在零阈值和高阈值之间变化的平均线路电流的零电流和最大电流之间变化的电流。

公开(公告)号：US5610564A

公开(公告)日：1997-03-11

申请号：US140233

申请日：1993-10-20

申请人： Luciano Tomasini ,  Rinaldo Castello

发明人： Luciano Tomasini ,  Rinaldo Castello

IPC分类号： H03H7/06 ,  H03H7/00 ,  H03H11/34 ,  H03H11/36 ,  H04M1/60 ,  H04M1/76 ,  H03H11/04

CPC分类号： H03H7/004 ,  H04M1/6025

摘要： A monolithically integrated AC coupling circuit is presented for DC uncoupling and AC coupling (typically in telephone applications) to an input signal. The AC coupler includes a high-pass filter having a first pole at a frequency well below a frequency of interest and a zero at zero frequency. The AC coupler also includes a pole/zero doublet between the frequency of the first pole and the frequency of interest. The frequency of the first pole for a specified error is increased by addition of the doublet. Because the frequency of the first pole is increased, the size of the required capacitors is decreased, enabling integration. An implementation of the circuit using switched capacitor techniques is described. An alternative circuit employing a unit gain interface is presented. The alternative circuit reduces the dynamic range and driving voltage requirements of its field-effect transistors.

摘要翻译： 提出了一种单片集成AC耦合电路，用于DC分离和AC耦合（通常在电话应用中）到输入信号。 AC耦合器包括高通滤波器，其具有在低于感兴趣频率的频率处的第一极点和零频率处的零点。 AC耦合器还包括在第一极的频率和感兴趣的频率之间的极点/零点。 通过添加双峰来增加指定误差的第一极的频率。 由于第一极的频率增加，所需电容的尺寸减小，从而实现集成。 描述使用开关电容器技术的电路的实现。 提出了采用单位增益接口的替代电路。 替代电路降低了其场效应晶体管的动态范围和驱动电压要求。

公开(公告)号：US5235637A

公开(公告)日：1993-08-10

申请号：US836546

申请日：1992-02-13

申请人： Vladimir Kraz ,  Paul Regen ,  Wayne Stade ,  Jeff Wimsatt ,  Robert Young

发明人： Vladimir Kraz ,  Paul Regen ,  Wayne Stade ,  Jeff Wimsatt ,  Robert Young

IPC分类号： H04M1/60

CPC分类号： H04M1/6025

摘要： An apparatus 10 controls the two-way communication between the microphone 12 and speaker 36 of a telephone headset and a telephone base. A transmit channel 15 includes an expander 18 that controllably attenuates the transmitted communication signal when the user is not speaking into the microphone 12. Conversely, a receive channel 30 includes a compressor 34 that controllably attenuates the received communication signal to prevent over driving the speaker 36.

摘要翻译： 装置10控制电话耳机的麦克风12和扬声器36与电话基座之间的双向通信。 发送信道15包括扩展器18，当用户不与麦克风12通话时，扩展器18可控制地衰减所发送的通信信号。相反，接收通道30包括可控地衰减接收的通信信号以防止过度驱动扬声器36的压缩器34 。