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    • 1. 发明授权
    • Voice enhancement system and method
    • 语音增强系统和方法
    • US5471527A
    • 1995-11-28
    • US161120
    • 1993-12-02
    • Helena S. HoMichael K. PrattPong C. LimThomas T. Oshidari
    • Helena S. HoMichael K. PrattPong C. LimThomas T. Oshidari
    • H04Q1/54H03G3/20H03G5/00H03G5/22H04M1/60H04M3/00H04M3/40H04M9/00H04Q1/56H04M1/00
    • H04M3/40H03G5/22H04M3/002
    • 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.
    • 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)。
    • 3. 发明授权
    • Switching matrix with connection modules
    • 具有连接模块的开关矩阵
    • US4149096A
    • 1979-04-10
    • US811873
    • 1977-06-30
    • Franz HolznerUlrich SchmidKurt Strittmatter
    • Franz HolznerUlrich SchmidKurt Strittmatter
    • G01R1/20G01R31/00H02B13/06H04Q1/16H04Q1/56
    • G01R1/206G01R31/00Y10T307/76
    • A switching matrix utilizing connection modules, for the connection of peripherally arranged electrical measuring devices, over selectable lines of a line group specifically associated with a matrix, to the peripheral terminals of specimens to be measured, such as electrical components, circuit board, assemblies, communication devices and the like, wherein the connection modules are designed with two poles, each of which is selectively connectable to a respective peripheral terminal of a specimen or a device over controllable switching means, and further controllable switching means for selectively connecting the first pole of a connection module to the second pole thereof at the matrix side of the first mentioned switching means associated with such second pole, in the event said last mentioned switching means is open, each of such poles providing access from such a terminal to separate line subgroups, from which a line is then selected over additional controllable switching means.
    • 一种利用连接模块的开关矩阵,用于将外围布置的电测量装置连接到与矩阵特定相关联的线路组的可选线路上,连接到要测量的试样的外围端子,例如电气部件,电路板,组件, 通信装置等,其中连接模块被设计成具有两个极,每个极可以选择性地连接到样本或相对于可控开关装置的装置的相应外围端子,以及可控开关装置,用于选择性地连接 在与所述第二极相关联的第一提及的开关装置的矩阵侧的第二极的连接模块,在所述最后提到的开关装置打开的情况下,每个这些极提供从这种端子到单独的线路子组的接入, 然后通过附加的可控开关装置选择一条线。
    • 4. 发明授权
    • Voice enhancement system and method
    • 语音增强系统和方法
    • US5592545A
    • 1997-01-07
    • US484677
    • 1995-06-07
    • Helena S. HoMichael K. PrattPong C. LimThomas T. Oshidari
    • Helena S. HoMichael K. PrattPong C. LimThomas T. Oshidari
    • H04Q1/54H03G3/20H03G5/00H03G5/22H04M1/60H04M3/00H04M3/40H04M9/00H04Q1/56H04M7/00
    • H04M3/40H03G5/22H04M3/002
    • 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.
    • 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)。
    • 5. 发明授权
    • Adaptive equalizer
    • 自适应均衡器
    • US4424498A
    • 1984-01-03
    • US325446
    • 1981-11-27
    • James A. MurrayDavid Nyman
    • James A. MurrayDavid Nyman
    • H04Q1/56H04B3/04H03H11/06
    • H04Q1/56
    • An adaptive equalizer for a twisted pair telephone line comprises a differential input/output amplifier, with the line connected to its positive input via a resistor and DC blocking capacitors. The junction of these capacitors is grounded via an adjustable impedance. The amplifier has a feedback loop with another adjustable impedance also connected to the negative input of the amplifier. Line impedance variations vary the impedance of both of the adjustable impedances, which, include diodes to separately compensate for the line's attenuation and frequency characteristics.
    • 用于双绞线电话线的自适应均衡器包括差分输入/输出放大器,该线路通过电阻器和直流阻塞电容器连接到其正输入端。 这些电容器的接点通过可调阻抗接地。 放大器具有一个反馈回路,另一个可调阻抗也连接到放大器的负输入端。 线路阻抗变化会改变两个可调阻抗的阻抗,其中包括二极管以分别补偿线路的衰减和频率特性。
    • 8. 发明授权
    • Voice call connection method during a push to talk call in a mobile communication system
    • 移动通信系统中的一键通电话中的语音呼叫连接方法
    • US07599704B2
    • 2009-10-06
    • US11193375
    • 2005-08-01
    • Sung-Jae YoonDong-Han KangJae-Gwan Shin
    • Sung-Jae YoonDong-Han KangJae-Gwan Shin
    • H04B7/00H04Q1/56H04L5/14H04B7/005H04B7/216
    • H04W4/10H04L65/1016H04L65/4061H04W76/45
    • Disclosed is a method for connecting a phone call during a Push To Talk (PTT) call traffic in a mobile communication system. The method comprises the steps of searching for a subscriber information of a selected current subscriber from both a PTT subscriber information and a subscriber group list, if a predetermined phone call key has been input; determining if the subscriber information of the selected current subscriber which has been searched from the PTT subscriber information and the subscriber group list is matched to a subscriber information stored in an address registry to confirm the matched subscriber information of the address registry; and terminating the PTT session of the PTT call traffic, connecting the phone call to the selected current subscriber's phone number based on the matched subscriber information of the address registry to perform the phone call traffic.
    • 公开了一种用于在移动通信系统中的一键通(PTT)呼叫业务期间连接电话呼叫的方法。 该方法包括以下步骤:如果已经输入预定的电话呼叫键,则从PTT用户信息和用户组列表中搜索所选择的当前用户的用户信息; 确定从PTT用户信息和用户组列表中已经搜索的所选当前用户的用户信息是否与存储在地址注册表中的用户信息相匹配,以确认地址注册表的匹配用户信息; 并终止PTT呼叫业务的PTT会话,基于地址注册表的匹配用户信息将电话呼叫连接到所选当前用户的电话号码,以执行电话呼叫业务。
    • 9. 发明授权
    • Station interface for digital electronic telephone switching system
having centralized digital audio processor
    • 具有集中数字音频处理器的数字电子电话交换系统的站界面
    • US4577310A
    • 1986-03-18
    • US610700
    • 1984-05-16
    • Vincent V. KorskyChansak Laotetpitaks
    • Vincent V. KorskyChansak Laotetpitaks
    • H04Q3/58H04Q11/04H04Q1/56
    • H04Q11/04
    • A station interface for a digital electronic telephone switching system is disclosed. The station interface couples a plurality of digital telephone instruments to a digital data bus having PCM encoded signals representative of analog voice signals time-division multiplexed thereon. The station interface enables two way communication between the telephone instruments and the digital data bus and includes a frame store memory for temporarily storing digital data on the data bus and assigning the digital data to system time slots. The output of the frame store memory is selectively supplied under microprocessor control to a digital audio processor which processes the PCM encoded voice signals from the telephone stations and supplies these signals to the audio processor. The audio processor digitally processes both the selected data from the frame store memory and the data from the telephone stations forwarded by a multiplexer, in respective system time slots, under microprocessor control. The PCM encoded signals are gain modified under the control of the microprocessor by the audio processor. The microprocessor monitors accumulated values of the energy of the voice signals originating at the telephone stations and those being forwarded to the telephone stations to dynamically alter the gain levels of the voice signals. In this way, differences in gain levels between signals originating from different sources, e.g. internal telephone stations or trunk lines, can be compensated. The station interface has particular application in controlling hands-free telephone station operation.
    • 公开了一种用于数字电子电话交换系统的站接口。 站接口将多个数字电话乐器耦合到具有代表在其上时分复用的模拟语音信号的PCM编码信号的数字数据总线。 站接口使得电话设备和数字数据总线之间能够进行双向通信,并且包括用于在数据总线上临时存储数字数据并将数字数据分配给系统时隙的帧存储存储器。 在微处理器控制下选择性地将帧存储器的输出提供给数字音频处理器,数字音频处理器处理来自电话台的PCM编码语音信号,并将这些信号提供给音频处理器。 音频处理器在微处理器控制下,在相应的系统时隙中,数字地处理来自帧存储器的选定数据和来自由多路复用器转发的电话台的数据。 音频处理器在微处理器的控制下对PCM编码信号进行增益修正。 微处理器监视来自电话站的语音信号的能量的累积值,以及转发到电话站的语音信号的能量的累积值,以动态地改变语音信号的增益水平。 以这种方式,来自不同来源的信号之间的增益水平差异。 内部电话站或中继线可以补偿。 台站界面特别适用于免提电话台的操作。