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1. 发明授权

US09185471B2 Method and apparatus for detecting one or more predetermined tones transmitted over a communication network 有权
标题翻译：用于检测通过通信网络发送的一个或多个预定音调的方法和装置
公开(公告)号：US09185471B2
公开(公告)日：2015-11-10
申请号：US14448280
申请日：2014-07-31
申请人： Bogdan Bolocan
发明人： Bogdan Bolocan
IPC分类号： H04L12/66 , H04Q1/457 , H04M7/00
CPC分类号： H04Q1/4575 , H04M7/0069
摘要： A gateway includes a network interface and an apparatus for detecting predetermined tones The apparatus includes an input to receive a signal transmitted over the network interface, a frequency divider to divide the signal into two different components, each component being associated with a different frequency sub band, wherein each frequency sub band is selected to include a predetermined frequency of a predetermined tone, a frequency discriminator to determine frequencies of tones in the components, and a decision logic block to provide an indication that a first predetermined tone has been detected when a first determined frequency of a first tone in a first component corresponds to a first predetermined frequency of the first tone.
摘要翻译：网关包括网络接口和用于检测预定音调的装置。该装置包括用于接收通过网络接口发送的信号的输入，分频器，用于将信号分成两个不同的分量，每个分量与不同的频率子带相关联，其中每个频率子频带被选择为包括预定音调的预定频率，用于确定分量中的音调频率的鉴频器，以及判定逻辑块，以提供当第一第一分量中的第一音调的确定频率对应于第一音调的第一预定频率。

2. 发明申请

US20140004844A1 METHOD AND APPARATUS FOR TRANMITTING SIGNALING 有权
标题翻译：用于信号传递的方法和装置
公开(公告)号：US20140004844A1
公开(公告)日：2014-01-02
申请号：US13906042
申请日：2013-05-30
申请人： Huawei Device Co., Ltd.
发明人： Zhanghua Ge
IPC分类号： H04Q1/457
CPC分类号： H04Q1/4575
摘要： Embodiments of the present invention disclose a method and an apparatus for transmitting a signaling and relate to the field of wireless communication technologies. The method includes: detecting whether a feedback command is received from a base station, the feedback command being used to trigger the fixed wireless terminal to send a dual tone multi frequency signaling to the base station, where the dual tone multi frequency signaling is generated by the fixed wireless terminal according to a voice signal sent by an alarm host; determining the number of current unsent dual tone multi frequency signalings if the feedback command is received from the base station; combining all unsent dual tone multi frequency signalings into one dual tone multi frequency signaling if at least two dual tone multi frequency signalings exist; and sending the dual tone multi frequency signaling obtained by performing the combining to the base station.
摘要翻译：本发明的实施例公开了用于发送信令并涉及无线通信技术领域的方法和装置。该方法包括：检测是否从基站接收到反馈命令，该反馈命令用于触发固定无线终端向基站发送双音多频信令，其中双音多频信号是由固定无线终端根据报警主机发出的语音信号; 如果从基站接收到反馈命令，则确定当前未发送双音多频信号的数量; 如果存在至少两个双音多频信号，则将所有未发送的双音多频信号组合成一个双音多频信令; 并将通过执行组合而获得的双音多频信令发送给基站。

3. 发明申请

US20110103573A1 MULTI-FREQUENCY TONE DETECTOR 有权
标题翻译：多频音检测器
公开(公告)号：US20110103573A1
公开(公告)日：2011-05-05
申请号：US12997991
申请日：2008-06-30
申请人： Adrian Susan
发明人： Adrian Susan
IPC分类号： H04M1/00
CPC分类号： H04Q1/4575
摘要： A tone detector for detecting a tone having a plurality of targeted frequencies comprises a first filter bank providing frequency estimates for an initial indication of a presence of each of the targeted frequencies; a second filter bank being controlled by the frequency estimates and comprising a plurality of filters operating in different frequency bands, each frequency band comprising at least one of the targeted frequencies, each of the filters providing a modified signal; a third filter bank extracting a noise signal from the input signal; a plurality of level control units (LCU) providing normalized modified signals having a constant amplitude; a power estimation module providing a power estimation parameter for each of the modified signals and the noise signal; and a discrimination module controlling a plurality of demodulator modules, each of the demodulator units providing a fine estimate of one of the targeted frequencies.
摘要翻译：用于检测具有多个目标频率的音调的音调检测器包括：第一滤波器组，提供针对每个目标频率的存在的初始指示的频率估计; 第二滤波器组由所述频率估计值控制并且包括在不同频带中操作的多个滤波器，每个频带包括所述目标频率中的至少一个，所述滤波器中的每一个提供修正信号; 第三滤波器组从输入信号中提取噪声信号; 提供具有恒定振幅的归一化修正信号的多个电平控制单元（LCU）; 功率估计模块，用于为每个修改的信号和噪声信号提供功率估计参数; 以及控制多个解调器模块的识别模块，每个解调器单元提供目标频率之一的精细估计。

4. 发明授权

US07792280B2 Narrow band tone detection in echo canceling system 有权
标题翻译：回波消除系统中的窄带音检测
公开(公告)号：US07792280B2
公开(公告)日：2010-09-07
申请号：US11045825
申请日：2005-01-27
申请人： Renee Johnston , Mirjana Popovic , Dieter Schulz , Jan Radecki
发明人： Renee Johnston , Mirjana Popovic , Dieter Schulz , Jan Radecki
IPC分类号： H04M9/08
CPC分类号： H04B3/23 , H04Q1/4575
摘要： The present invention relates generally to tone detection in echo canceling systems, and more particularly to a method of monitoring oscillations of adaptive filter coefficients for narrow band tone detection in echo cancellation systems. The invention is directed at improving communication in a telephone communication network having one or more hybrid connections. A method for detecting continuous tones in an echo canceling system having an adaptive filter is provided. Continuous tones have a deleterious effect on the performance of adaptive filters. In the present invention, the adaptive filter coefficients are monitored. Oscillation of those coefficients indicates continuous tone presence.
摘要翻译：本发明一般涉及回波消除系统中的音调检测，更具体地说，涉及一种监测回波消除系统中的窄带音检测的自适应滤波器系数的振荡的方法。本发明旨在改进具有一个或多个混合连接的电话通信网络中的通信。提供一种用于在具有自适应滤波器的回波消除系统中检测连续音调的方法。连续色调对自适应滤波器的性能有不利影响。在本发明中，监视自适应滤波器系数。这些系数的振荡表示连续色调存在。

5. 发明授权

US06813529B2 Method and apparatus for signal frequency decoding without an analog bandpass filter 有权
标题翻译：没有模拟带通滤波器的信号频率解码方法和装置
公开(公告)号：US06813529B2
公开(公告)日：2004-11-02
申请号：US09766094
申请日：2001-01-19
申请人： David Hedley
发明人： David Hedley
IPC分类号： H04M100
CPC分类号： H04Q1/4575
摘要： An apparatus and method are provided for decoding single-frequency or multi-frequency signals, such as DTMF signals, without the use of analog bandpass filters. The method of the present invention is equally applicable to any decoding of multi-frequency signals. The method is composed of a number of steps. First, an incoming (analog) signal is received and transformed into binary signals (1 or 0) at specific instances of time. The incoming binary signal is compared to a pre-defined expected (binary) signal at each time step. The incoming and expected bit values for each time step are then compared and the comparison result is stored as part of a frequency response table. The comparison values are then summed and, if the summed value exceeds a pre-defined threshold, the incoming and expected signals are declared a match. Otherwise, the signals are declared a mis-match.
摘要翻译：提供了一种用于在不使用模拟带通滤波器的情况下对诸如DTMF信号的单频或多频信号进行解码的装置和方法。本发明的方法同样适用于多频信号的任何解码。该方法由多个步骤组成。首先，输入（模拟）信号在特定时刻被接收并变换为二进制信号（1或0）。输入的二进制信号在每个时间步长与预定义的预期（二进制）信号进行比较。然后比较每个时间步长的输入和预期比特值，并将比较结果存储为频率响应表的一部分。然后将比较值相加，如果总和值超过预定义的阈值，则将声明输入和预期信号匹配。否则，信号被声明为不匹配。

6. 发明授权

US06801622B1 Devices, software and methods for passing DTMF signals under voice compression 有权
标题翻译：在语音压缩下传送DTMF信号的设备，软件和方法
公开(公告)号：US06801622B1
公开(公告)日：2004-10-05
申请号：US09703336
申请日：2000-10-31
申请人： Ramanathan T. Jagadeesan
发明人： Ramanathan T. Jagadeesan
IPC分类号： H04M100
CPC分类号： H04Q1/4575
摘要： Devices, software and methods are provided for encoding DTMF signals for telephone connections between digital voice communication systems that use compression, such as wireless connections or network connections. First the twist of the DTMF signals is determined, and then it is determined whether the twist is within a mapped range of a remote decoder. If not, the signal is first balanced to change the twist, and then the balanced signal is encoded.
摘要翻译：提供了设备，软件和方法来编码用于使用诸如无线连接或网络连接之类的压缩的数字语音通信系统之间的电话连接的DTMF信号。首先确定DTMF信号的扭曲，然后确定扭转是否在远程解码器的映射范围内。如果没有，信号首先被平衡以改变扭曲，然后对平衡信号进行编码。

7. 发明授权

US06748059B2 Apparatus and method for unified tone detection 有权
标题翻译：统一音检测装置及方法
公开(公告)号：US06748059B2
公开(公告)日：2004-06-08
申请号：US10117021
申请日：2002-04-05
申请人： Sharmistha Sarkar Das , Manish Marwah
发明人： Sharmistha Sarkar Das , Manish Marwah
IPC分类号： H04M1100
CPC分类号： H04M3/2218 , H04Q1/4575
摘要： Performing tone detection by (1) creating a search engine for every period of all possible tones, (2) applying the search engines on one period of the unknown tone, (3) eliminating the search engines that did not match the period of the unknown tone, (4) reapplying the remaining search engines, and (5) repeating (3) and (4) until the unknown tone can be identified as one of the possible tones based on the remaining search engines.
摘要翻译：通过（1）在所有可能的音调的每个周期内创建搜索引擎来执行音调检测，（2）在未知音的一个周期应用搜索引擎，（3）消除与未知的时期不匹配的搜索引擎（4）重新应用剩余的搜索引擎，以及（5）重复（3）和（4），直到基于剩余的搜索引擎将未知音调识别为可能的音调之一。

8. 发明申请

US20020141552A1 Voice transmitter 失效
标题翻译：语音发射机
公开(公告)号：US20020141552A1
公开(公告)日：2002-10-03
申请号：US10087755
申请日：2002-03-05
发明人： Wataru Fushimi
IPC分类号： H04M011/00
CPC分类号： H04M11/06 , H04Q1/4575 , H04Q1/46
摘要： A voice transmitter includes a first selector for selecting an output of DTMF encoding means or that of voice-DTMF encoding means; DTMF transmission control means for monitoring each state, and for controlling selecting operation of the first selector; DTMF detecting means; and a second selector for selecting an output of voice encoding means or an output signal selected by the first selector by the DTMF detecting means.
摘要翻译：语音发送器包括用于选择DTMF编码装置或语音DTMF编码装置的输出的第一选择器; DTMF传输控制装置，用于监视每个状态，并用于控制第一选择器的选择操作; DTMF检测手段; 以及第二选择器，用于选择语音编码装置的输出或由DTMF检测装置由第一选择器选择的输出信号。

9. 发明授权

US6035179A Transmission of voice-frequency signals in a mobile telephone system 失效
标题翻译：语音频率信号在移动电话系统中的传输
公开(公告)号：US6035179A
公开(公告)日：2000-03-07
申请号：US913591
申请日：1997-09-19
申请人： Anu Virtanen
发明人： Anu Virtanen
IPC分类号： H04B1/10 , H04B7/26 , H04Q1/45 , H04Q1/453 , H04Q1/457 , H04W76/04 , H04W84/14 , H04W88/02
CPC分类号： H04W76/04 , H04Q1/453 , H04Q1/4575 , H04M7/1295 , H04W84/14 , H04W88/021
摘要： According to the invention, when detecting the same DTMF signal at the transmitting end, successive DTMF frames relating to this signal are established. These frames are modified SID frames, and individual linking information (Order, Start, Duration) is added to each frame in addition to DTMF signal frequence pair information. This linking information indicates the duration of the DTMF signal from the first detection time period of the first modifiedd SID frame to the frame concerned, including said frame. The individual linking information thus interlinks successive DTMF frames (frames 1-4) relating to the same DTMF signal. At the receiving end, in receiving DTMF frames, it is calculated at each error-free frame how long the DTMF signal has been received. Only when the individual linking information of a received frame indicates the duration of the DTMF signal is longer than the threshold value, for instance 40 ms, the DTMF signal indicated by the frequency pair inforamtion of the received frames is generated to a subscriber station. During the waiting period, background noise is generated.
摘要翻译： PCT No.PCT / FI96 / 00181 Sec。 371日期：1997年9月19日 102（e）1997年9月19日PCT PCT 1996年4月2日PCT公布。出版物WO96 / 32817 日期1996年10月17日根据本发明，当在发送端检测到相同的DTMF信号时，建立与该信号有关的连续DTMF帧。这些帧是修改的SID帧，除了DTMF信号频率对信息之外，还将各个链接信息（顺序，开始，持续时间）添加到每个帧。该链接信息指示从第一修改的SID帧的第一检测时间段到包括所述帧的相关帧的DTMF信号的持续时间。因此，各个链接信息互连了与相同DTMF信号有关的连续DTMF帧（帧1-4）。在接收端，在接收DTMF帧时，会在每个无差错帧中计算已收到DTMF信号的时间。仅当接收到的帧的各个链接信息指示DTMF信号的持续时间长于阈值（例如40ms）时，由接收到的帧的频率对信息指示的DTMF信号被生成给订户站。在等待期间，产生背景噪音。

10. 发明授权

US5937059A DTMF detector for detecting DTMF signals using a digital signal processing chip and method thereof 失效
标题翻译： DTMF检测器，用于使用数字信号处理芯片检测DTMF信号及其方法
公开(公告)号：US5937059A
公开(公告)日：1999-08-10
申请号：US752426
申请日：1996-11-19
申请人： Nam-Sun Kim , Young-Ky Kim , Yoon-Seok Kang , Ho-Young Park
发明人： Nam-Sun Kim , Young-Ky Kim , Yoon-Seok Kang , Ho-Young Park
IPC分类号： H04M1/50 , H04M1/30 , H04Q1/30 , H04Q1/45 , H04Q1/457 , H04M1/00 , H04M3/00
CPC分类号： H04Q1/4575
摘要： A dual tone multi-frequency detector includes a pulse code modulation expanding unit for converting pulse code modulation data into linear data. A correlating unit constructed from a plurality of correlators correlates the linear data with a plurality of predetermined reference signals to generate a plurality of power values of a frequency band corresponding to dual tone multi-frequency signals. A total power detecting unit detects a total power value of the linear data. A low frequency maximum power detecting unit detects a maximum low frequency power value from the power values of a low frequency band generated by the correlating unit. A high frequency maximum power detecting unit detects a maximum high frequency power value from the power values of a high frequency band generated by the correlating unit. A deciding unit decides whether or not the pulse code modulation data represents a dual tone multi-frequency signal in dependence upon the total power value, the maximum low frequency power value and the maximum high frequency power value.
摘要翻译：双音多频检测器包括用于将脉码调制数据转换为线性数据的脉码调制扩展单元。由多个相关器构成的相关单元将线性数据与多个预定参考信号相关，以产生与双音多频信号相对应的频带的多个功率值。总功率检测单元检测线性数据的总功率值。低频最大功率检测单元从由相关单元生成的低频带的功率值检测最大低频功率值。高频最大功率检测单元从由相关单元生成的高频带的功率值检测最大高频功率值。决定单元根据总功率值，最大低频功率值和最大高频功率值来决定脉码调制数据是否代表双音多频信号。

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