公开(公告)号：US20190103125A1

公开(公告)日：2019-04-04

申请号：US15720562

申请日：2017-09-29

Applicant: Honda Motor Co., Ltd.

Inventor： James JIANG ,  Rahul KHANNA

IPC: G10L21/0272 ,  H04R23/00 ,  G10K11/178 ,  H04M3/40 ,  H04N13/02

Abstract: A dynamic optical microphone system may include an acoustic microphone that receives an audio signal and a laser microphone that transmits a laser beam and receives optical feedback from a human struck by the laser beam. The system may include a depth sensor that determines a distance to the human and a camera that tracks human faces. A processor may be communicatively coupled to the acoustic microphone, laser microphone, depth sensor, camera, and a memory storing computer executable instructions. The processor may determine a direction to a human, direct the laser beam at a voice box of the human, determine a distance to the human using the depth sensor, adjust an intensity of the laser beam based on the distance, receive optical feedback and isolate a voice signal through the optical feedback from background noise in the audio signal.

公开(公告)号：US20180115650A1

公开(公告)日：2018-04-26

申请号：US15737465

申请日：2016-09-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： RYOJI SUZUKI ,  HIROMASA OHASHI ,  NAOYA TANAKA

IPC: H04M9/08 ,  H04M3/00 ,  H04M3/40

CPC classification number: H04M9/082 ,  G10L21/0208 ,  G10L2021/02082 ,  G10L2021/02087 ,  H04M3/002 ,  H04M3/40 ,  H04M9/085 ,  H04R3/02 ,  H04R27/00 ,  H04R2499/13

Abstract: A two-way conversation assisting device includes a first microphone that enters a first voice, a first loudspeaker that outputs the first voice, a second microphone that enters a second voice, a second loudspeaker that outputs the second voice, and a first echo and crosstalk canceller. The first echo and crosstalk canceller estimates and calculates, using an input signal into the second loudspeaker, a first interference signal indicative of degrees of a first echo caused when the second voice output from the second loudspeaker enters into the first microphone and first crosstalk caused when the second voice enters into the first microphone, and removes the calculated first interference signal from an output signal of the first microphone.

公开(公告)号：US6006189A

公开(公告)日：1999-12-21

申请号：US948418

申请日：1997-10-10

Applicant: Leo Strawczynski ,  Bill (W.A.) Gage

Inventor： Leo Strawczynski ,  Bill (W.A.) Gage

IPC: G10L19/14 ,  H04M3/40 ,  H04M3/533 ,  H04M7/00 ,  H04W4/12 ,  H04W88/18 ,  G10L3/00

CPC classification number: H04W88/181 ,  G10L19/16 ,  H04M3/40 ,  H04M3/533 ,  H04M7/1235 ,  H04M7/1275 ,  H04W4/12

Abstract: In recent years, the telecommunications industry has witnessed the proliferation of a variety of digital vocoders in order to meet bandwidth demands of different wireline and wireless communication systems. The rapid growth in the diversity of networks and the number of users of such networks is increasing the number of instances where two vocoders are placed in tandem to serve a single connection. Such arrangements of low bit-rate codecs can degrade the quality of the transmitted speech. To overcome this problem in the specific situation involving store-and-forward systems (e.g. voicemail), the invention provides a novel method and apparatus including a plurality of different vocoders that can be selectively invoked to process the voice signal so as to reduce signal degradation. Also, the apparatus has the capability to bypass the vocoder bank when exchanging data with a remote signal processor capable of accepting data frames in compressed format.

Abstract translation: 近年来，电讯业目睹了各种数字声码器的扩散，以满足不同有线和无线通讯系统的带宽需求。 网络的多样性的快速增长和这种网络的用户数量正在增加两个声码器串联放置以服务于单个连接的情况的数量。 低比特率编解码器的这种布置可能会降低发送语音的质量。 为了在涉及存储转发系统（例如语音邮件）的具体情况下克服这个问题，本发明提供了一种新颖的方法和装置，其包括可以选择性地调用多个不同的声码器来处理语音信号，以便降低信号劣化 。 此外，当与能够接受压缩格式的数据帧的远程信号处理器交换数据时，该装置具有绕过声码器组的能力。

公开(公告)号：US5991645A

公开(公告)日：1999-11-23

申请号：US469481

申请日：1995-06-06

Applicant: Barry K. Yuen ,  Dwight D. Lynn

Inventor： Barry K. Yuen ,  Dwight D. Lynn

IPC: H04M1/60 ,  H04M1/725 ,  H04M3/40 ,  H04M3/51 ,  H04M3/62 ,  H04Q7/32

CPC classification number: H04M1/725 ,  H04M1/6033 ,  H04M3/51 ,  H04M2203/6018 ,  H04M2207/18 ,  H04M3/40 ,  H04M3/5133 ,  H04M3/62

Abstract: Existing automatic log on/log off systems in telephone systems determine whether or not a workstation is occupied and whether calls can be directed to that workstation by determining whether or not the amplifier that provides the interface between the telephone system and the occupant's headset is plugged into the workstation. Recent headsets have included a connector in the cord between the headset and the amplifier, enabling the occupant to leave the workstation without unplugging the amplifier. However, this defeats the sensing mechanism of the existing automatic log on/log off system. A wireless telephone headset system according to the present invention replaces the existing wired amplifier and headset assembly and includes a detector for determining whether a wireless communication link exists between the headset and the amplifier, and an activator for activating the existing automatic log on/log off system in the telephone system. In the preferred embodiment, the detector senses both interruption and reestablishment of the wireless communication link between the headset and the amplifier, and the activator activates both current-sensing and voltage/resistance-sensing automatic log on/log off systems.

Abstract translation: 电话系统中现有的自动登录/注销系统确定工作站是否被占用，以及是否可以通过确定提供电话系统和乘员头戴式耳机之间的接口的放大器插入到该工作站来进行呼叫 工作站。 最近的耳机在耳机和放大器之间的电线中包括一个连接器，使得乘员离开工作站而不拔掉放大器。 但是，这会破坏现有自动登录/注销系统的检测机制。 根据本发明的无线电话耳机系统取代了现有的有线放大器和耳机组件，并且包括用于确定耳机和放大器之间是否存在无线通信链路的检测器，以及用于激活现有自动登录/注销的激活器 系统在电话系统中。 在优选实施例中，检测器检测耳机和放大器之间的无线通信链路的中断和重新建立，并且激活器激活电流感测和电压/电阻感测自动登录/注销系统。

公开(公告)号：US5864615A

公开(公告)日：1999-01-26

申请号：US535696

申请日：1995-09-28

Applicant: Anthony J. Dezonno

Inventor： Anthony J. Dezonno

IPC: H04M3/40 ,  H04M3/51 ,  H04Q3/64 ,  H04M3/00 ,  H04M7/00

CPC classification number: H04M3/5125 ,  H04M3/40 ,  H04M3/5183

Abstract: An audio communications interface 102 provides substantially automatic audio communications between a remote agent telephone 107 and a telephonic switch 104 through a telephonic console 106 connected to the telephonic switch 104. A remote agent dials a specified telephone number on the agent telephone 107 to access the audio communications interface 102. The audio communications interface 102 receives the dialed number from a telephone network 108 connected to the agent telephone 107 and generates a call signal which is transmitted to the telephonic switch 104 through the telephonic console 106. In response to the call signal, the telephonic switch 104 establishes audio communications with the agent telephone 107 through the console 106 and audio communications interface 102. A method for establishing audio communications through the audio communications interface 102 and data communications through an agent terminal 112, a computer network and a host computer 110 with the telephonic switch 104 is provided. In addition, a communications system for providing audio and data communications between a remote agent and the telephonic switch 104 is provided.

Abstract translation: 音频通信接口102通过连接到电话交换机104的电话控制台106在远程代理电话107和电话交换机104之间提供基本上自动的音频通信。远程代理拨打代理电话107上指定的电话号码以访问音频 通信接口102.音频通信接口102从连接到代理电话机107的电话网络108接收拨号号码，并产生通过电话控制台106发送到电话交换机104的呼叫信号。响应于呼叫信号， 电话交换机104通过控制台106和音频通信接口102建立与代理电话107的音频通信。一种用于通过音频通信接口102建立音频通信的方法以及通过代理终端112，计算机网络和主计算机的数据通信 110与电话 提供女巫104。 此外，提供了一种用于在远程代理和电话交换机104之间提供音频和数据通信的通信系统。

公开(公告)号：US5838785A

公开(公告)日：1998-11-17

申请号：US384590

申请日：1995-02-03

Applicant: Osamu Hirata

Inventor： Osamu Hirata

IPC: H04M1/00 ,  H03G1/00 ,  H03G3/00 ,  H03G3/20 ,  H04M1/253 ,  H04M3/22 ,  H04M3/40 ,  H04M3/56 ,  H04Q11/04

CPC classification number: H03G3/3026 ,  H03G1/0088 ,  H03G3/001 ,  H04M1/253 ,  H04M3/2272 ,  H04M3/40 ,  H04Q11/0471 ,  H04M3/56 ,  H04M3/568 ,  H04Q2213/096 ,  H04Q2213/13034 ,  H04Q2213/1309 ,  H04Q2213/13096 ,  H04Q2213/13106 ,  H04Q2213/13176 ,  H04Q2213/13204 ,  H04Q2213/13209 ,  H04Q2213/13216 ,  H04Q2213/1322 ,  H04Q2213/13396 ,  H04Q2213/19

Abstract: A voice level controller comprises a discriminator for determining whether speech is transmitted through an analog line or not, and a control circuit for controlling a speech level in accordance with the output of the discriminator.

Abstract translation: 语音电平控制器包括用于确定语音是否通过模拟线路发送的鉴别器，以及用于根据鉴别器的输出来控制语音电平的控制电路。

公开(公告)号：US5708754A

公开(公告)日：1998-01-13

申请号：US790006

申请日：1997-01-28

Applicant: Woodson Dale Wynn

Inventor： Woodson Dale Wynn

IPC: G10L19/00 ,  G10L19/06 ,  G10L21/02 ,  H04M3/18 ,  H04M3/40 ,  G10L3/02 ,  G10L5/06 ,  G10L9/00

CPC classification number: G10L21/0208 ,  H04M3/18 ,  H04M3/40 ,  G10L2021/02168 ,  G10L21/0264 ,  G10L25/12 ,  G10L25/24

Abstract: A telecommunications network service overcomes the annoying effects of transmitted noise by a signal processing which filters out the noise using interactive estimations of a linear predictive coating speech model. The speech model filter uses an accurate updated estimate of the current noise power spectral density, based upon incoming signal frame samples which are determined by a voice activity detector to be noise-only frames. A novel method of calculating the incoming signal using the linear predictive coating model provides for making intraframe iterations of the present frame based upon a selected number of recent past frames and up to two future frames. The processing is effective notwithstanding that the noise signal is not ascertainable from its source.

Abstract translation: 电信网络服务通过使用线性预测涂层语音模型的交互估计来过滤掉噪声的信号处理来克服发射噪声的烦人的影响。 语音模型滤波器使用基于由语音活动检测器确定的输入信号帧样本作为仅噪声帧的当前噪声功率谱密度的精确更新估计。 使用线性预测涂层模型计算输入信号的新颖方法提供了基于所选数量的最近的过去帧和多达两个未来帧来对当前帧进行帧内迭代。 尽管噪声信号不能从其来源确定，但该处理是有效的。

公开(公告)号：US5592545A

公开(公告)日：1997-01-07

申请号：US484677

申请日：1995-06-07

Applicant: Helena S. Ho ,  Michael K. Pratt ,  Pong C. Lim ,  Thomas T. Oshidari

Inventor： Helena S. Ho ,  Michael K. Pratt ,  Pong C. Lim ,  Thomas T. Oshidari

IPC: H04Q1/54 ,  H03G3/20 ,  H03G5/00 ,  H03G5/22 ,  H04M1/60 ,  H04M3/00 ,  H04M3/40 ,  H04M9/00 ,  H04Q1/56 ,  H04M7/00

CPC classification number: H04M3/40 ,  H03G5/22 ,  H04M3/002

Abstract: A telecommunications network (120) is provided with adaptive gain control (AGC) of the voice signals in network (120). Network (120)includes an input (12) for receiving a voice signal, an output (14) for receiving the voice signal, and a coupling between input (12) and output (14) including at least one switch (124) or (126). Network (120) also includes voice enhancer (10) including power averager (18) for measuring and determining the average power of an input signal. Voice enhancer (10) also includes bass band equalizer (16) to attenuate a predetermined portion of the input signal to provide an equalized input signal. From the average power of the input signal is determined a scaling factor from a gain/attenuation look-up table (28). Voice enhancer (10) also includes output scaler (30) coupled to output (14), output scaler (30) scales the equalized input signal with the scaling factor and provides the scaled signal to output (14). Voice enhancer (10) also includes bass to treble power comparator (20) for detecting tandem enhancement and voice-band data detector (22) which cause enhancer (10) to be disabled appropriately.

Abstract translation: 电信网络（120）在网络（120）中提供语音信号的自适应增益控制（AGC）。 网络（120）包括用于接收语音信号的输入（12），用于接收语音信号的输出（14）以及输入（12）和输出（14）之间的耦合，包括至少一个开关（124）或 126）。 网络（120）还包括语音增强器（10），包括用于测量和确定输入信号的平均功率的功率平均器（18）。 语音增强器（10）还包括低音段均衡器（16），以衰减输入信号的预定部分以提供均衡的输入信号。 从输入信号的平均功率确定来自增益/衰减查找表（28）的缩放因子。 语音增强器（10）还包括耦合到输出（14）的输出缩放器（30），输出缩放器（30）用缩放因子对均衡的输入信号进行缩放，并将缩放的信号提供给输出（14）。 语音增强器（10）还包括用于检测串联增强的高音功率比较器（20）的低音和使得增强器（10）被适当地禁用的语音频带数据检测器（22）。

公开(公告)号：US5485515A

公开(公告)日：1996-01-16

申请号：US175095

申请日：1993-12-29

Applicant: Jonathan B. Allen ,  Donald J. Youtkus

Inventor： Jonathan B. Allen ,  Donald J. Youtkus

IPC: G03G7/00 ,  H04B1/64 ,  H04M1/19 ,  H04M1/60 ,  H04M3/40 ,  H04M9/08

CPC classification number: H04M1/19 ,  H04B1/64 ,  H04M1/60 ,  H04M3/40 ,  G03G7/0006

Abstract: An automated method for modifying a speech signal in a telephone network by applying a gain factor which is a function of the level of background noise at a given destination, and transmitting the modified speech signal to the destination. The gain applied may be a function of both the background noise level and the original speech signal. Either a linear or a non-linear (e.g., compressed) amplification of the original speech signal may be performed, where a compressed amplification results in the higher level portions of the speech signal being amplified by a smaller gain factor than lower level portions. The speech signal may be separated into a plurality of subbands, each resultant subband signal being individually modified in accordance with the present invention. In this case, each subband speech signal is amplified by a gain factor based on a corresponding subband noise signal, generated by separating the background noise signal into a corresponding plurality of subbands. The individual modified subband signals may then be combined to form the resultant modified speech signal.

Abstract translation: 一种用于通过应用作为给定目的地的背景噪声电平的函数的增益因子并且将修改的语音信号发送到目的地的方式来修改电话网络中的语音信号。 所施加的增益可以是背景噪声电平和原始语音信号的函数。 可以执行原始语音信号的线性或非线性（例如，压缩）放大，其中压缩放大导致语音信号的较高电平部分被放大比较低电平部分更小的增益因子。 语音信号可以被分成多个子带，每个合成的子带信号根据本发明被单独修改。 在这种情况下，通过将背景噪声信号分离成相应的多个子带而产生的相应子带噪声信号，每个子带语音信号被增益增益因子放大。 然后可以将各个经修改的子带信号组合以形成所得到的修改语音信号。

公开(公告)号：US5473666A

公开(公告)日：1995-12-05

申请号：US944204

申请日：1992-09-11

Applicant: Edward J. Szczebak, Jr. ,  Chris A. Balthrop, Sr. ,  Patricia K. Mutzabaugh ,  John M. Porter ,  Gary D. Stewart

Inventor： Edward J. Szczebak, Jr. ,  Chris A. Balthrop, Sr. ,  Patricia K. Mutzabaugh ,  John M. Porter ,  Gary D. Stewart

IPC: G01R31/28 ,  G01R35/00 ,  H04L12/26 ,  H04M3/22 ,  H04M3/28 ,  H04M3/40 ,  H04M1/24

CPC classification number: H04M3/40 ,  H04M3/22 ,  H04M3/28 ,  H04L12/2697 ,  H04L43/50

Abstract: A processor controlled test set is disclosed for testing special service circuits of a telecommunication system. A microprocessor controls the overall operation of the test set, while a digital signal processor provides high speed timing signals to the various test circuits for generating the wave forms used in testing, as well as analyzes the test result signals that are converted into digital signals. A calibration of the test generator signals as well as the signal measuring path is carried out prior to the test sequence. The digital signal processor also provides gain control over a talking path to maintain stability thereof. An I/O circuit of the test set provides plural communication paths between remote equipment and the test set to initiate and carry out various tests. Processors in the I/O module are effective to convert the various protocols of the serial data, by way of software, to digital bit streams usable by the test set.

Abstract translation: 公开了一种用于测试电信系统的特殊业务电路的处理器控制测试集。 微处理器控制测试集的整体操作，而数字信号处理器向各种测试电路提供高速定时信号，以产生测试中使用的波形，并分析转换成数字信号的测试结果信号。 测试发生器信号的校准以及信号测量路径在测试序列之前进行。 数字信号处理器还提供对通话路径的增益控制以保持其稳定性。 测试装置的I / O电路在远程设备和测试装置之间提供多个通信路径，以启动和执行各种测试。 I / O模块中的处理器可以通过软件将串行数据的各种协议转换为测试集可用的数字位流。