公开(公告)号：US5842139A

公开(公告)日：1998-11-24

申请号：US498126

申请日：1995-07-05

申请人： Ryujiro Muramatsu ,  Toshiro Suzuki

发明人： Ryujiro Muramatsu ,  Toshiro Suzuki

IPC分类号： H04M1/27 ,  H04M1/274 ,  H04M1/60 ,  H04W24/00 ,  H04W76/02 ,  H04W88/02 ,  H04Q7/20 ,  H04Q7/32

CPC分类号： H04W76/02 ,  H04M1/271 ,  H04M1/6041 ,  H04W24/00 ,  H04W88/02

摘要： A telephone communication terminal responsive to a voice for originating a call includes an antenna, a diplexer, a radio unit, a base band unit, a controller, a loudspeaker, a microphone, a key input and display unit, a sound level measuring instrument, threshold generators, comparators, an analyzer, and a destination number storage. The sound level measuring instrument always measures the sound level of an input signal, such as a voice inputted from the microphone. The sound level measuring instrument conducts processing such as calculating signal power at fixed intervals. The output of the sound level measuring instrument is compared in a first comparator with the output of a first threshold generator outputting a preset threshold value. In the case where the output of the sound level measuring instrument is greater than the threshold value, a result of comparison is conveyed to the controller. The analyzer effects an analysis on an input signal and outputs information. The output of the analyzer is compared in a second comparator with lower and upper limit threshold values outputted from a second threshold generator.

摘要翻译： 响应于用于发起呼叫的语音的电话通信终端包括天线，双工器，无线电单元，基带单元，控制器，扬声器，麦克风，键输入和显示单元，声级测量仪器， 阈值发生器，比较器，分析器和目的地号码存储。 声级测量仪器总是测量输入信号的声级，例如从麦克风输入的声音。 声级测量仪器以固定间隔计算信号功率进行处理。 声音电平测量仪器的输出在第一比较器中与输出预设阈值的第一阈值发生器的输出进行比较。 在声级测量仪器的输出大于阈值的情况下，将比较结果传送给控制器。 分析仪对输入信号进行分析，并输出信息。 在第二比较器中比较分析器的输出，从第二阈值发生器输出的下限阈值和上限阈值。

公开(公告)号：US5675632A

公开(公告)日：1997-10-07

申请号：US512406

申请日：1995-08-08

申请人： Toshiyuki Odaka ,  Akio Amano ,  Nobuo Hataoka ,  Tetsuo Takemura ,  Toshiaki Suzuki ,  Ryujiro Muramatsu

发明人： Toshiyuki Odaka ,  Akio Amano ,  Nobuo Hataoka ,  Tetsuo Takemura ,  Toshiaki Suzuki ,  Ryujiro Muramatsu

IPC分类号： H04M3/42 ,  H04M3/493 ,  H04Q3/42 ,  H04M1/64

CPC分类号： H04M3/42204 ,  H04M3/4931 ,  H04Q3/42 ,  H04M2201/40

摘要： A telephone exchange enables subscribers to use voice dialing more easily with existing telephone systems. The voice dialing does not require special input operations or preregistration of called parties. Rather, a subscriber can make a telephone call easily without having to perform multiple operations. The telephone exchange includes structure for discriminating dial pulse information, push-button tone information, and spoken information so that one or more of these types of information can be input by a caller to achieve connection to the called party.

摘要翻译： 电话交换使用户能够更轻松地使用现有的电话系统进行语音拨号。 语音拨号不需要特殊的输入操作或被叫方的预注册。 相反，用户可以容易地进行电话呼叫，而不必执行多个操作。 电话交换机包括用于识别拨号脉冲信息，按钮音信息和口语信息的结构，使得呼叫者可以输入这些类型的信息中的一个或多个以实现与被叫方的连接。

公开(公告)号：US4918734A

公开(公告)日：1990-04-17

申请号：US052395

申请日：1987-05-21

申请人： Ryujiro Muramatsu ,  Takanori Miyamoto ,  Kazuhiro Kondo ,  Toshiro Suzuki

发明人： Ryujiro Muramatsu ,  Takanori Miyamoto ,  Kazuhiro Kondo ,  Toshiro Suzuki

IPC分类号： H04B14/04 ,  G10L11/02 ,  H04B14/00

CPC分类号： G10L25/78

摘要： A speech coding system includes apparatus for generating a variable threshold dependent upon the power of an input speech signal, and a comparator for comparing the power of the input speech signal with the variable threshold value to generate a discriminating signal for discriminating between a period when a speech continues and a period when the speech pauses, to change the coding operation for the input speech signal in accordance with the level of the discriminating signal, thereby forming voiced and unvoiced frames independently of each other.

摘要翻译： 语音编码系统包括用于根据输入语音信号的功率产生可变阈值的装置，以及用于将输入语音信号的功率与可变阈值进行比较的比较器，以产生鉴别信号，以区分当 语音继续，并且语音暂停的时段，根据鉴别信号的电平改变输入语音信号的编码操作，从而彼此独立地形成有声和无声帧。