公开(公告)号：US5353281A

公开(公告)日：1994-10-04

申请号：US889952

申请日：1992-05-29

申请人： Hiroshi Kuwahara ,  Kazuhiro Suzuki ,  Toshikazu Sasa ,  Kenzo Urabe ,  Arata Nakagoshi ,  Hideya Suzuki ,  Yohichi Ogawa ,  Tsuneo Furuya ,  Yoshinobu Yamamoto

发明人： Hiroshi Kuwahara ,  Kazuhiro Suzuki ,  Toshikazu Sasa ,  Kenzo Urabe ,  Arata Nakagoshi ,  Hideya Suzuki ,  Yohichi Ogawa ,  Tsuneo Furuya ,  Yoshinobu Yamamoto

IPC分类号： H04Q7/22 ,  H04Q7/28 ,  H04Q11/04

CPC分类号： H04Q11/04

摘要： An intermittenceless switching system includes two speech path memories having sufficient capacity to store a single frame of data having a plurality of time slots. The incoming data is stored in one memory, while the outgoing data is read from the other memory. A control circuit continuously alternates the read/write functions between the two memories. A control memory is used to store switch control information. The system includes a buffer memory that is present between a data processor and the control memory to prevent switch operation during data transmission. The system also includes a monitoring circuit for detecting an indication bit signifying the presence or absence of data in the time slot.

摘要翻译： 无间歇切换系统包括具有足够的容量来存储具有多个时隙的单个数据帧的两个语音路径存储器。 输入数据存储在一个存储器中，而从其他存储器读取输出数据。 控制电路在两个存储器之间连续交替读/写功能。 控制存储器用于存储开关控制信息。 该系统包括存在于数据处理器和控制存储器之间的缓冲存储器，以防止在数据传输期间的开关操作。 该系统还包括用于检测表示时隙中是否存在数据的指示位的监视电路。

公开(公告)号：US20070218880A1

公开(公告)日：2007-09-20

申请号：US11575788

申请日：2004-09-28

申请人： Stefan Felter ,  Kenzo Urabe

发明人： Stefan Felter ,  Kenzo Urabe

IPC分类号： H04Q7/38

CPC分类号： H04W16/18

摘要： The present invention relates to an improved radio resource management in a telecommunication network. This is achieved by means of improving the information that is provided to the responsible resource management units. Such improvement is achieved by collecting various types of information from various sources and by refining said information in order to achieve an increased predictability of parameters that determine the resource needs of the network.

摘要翻译： 本发明涉及电信网络中改进的无线电资源管理。 这是通过改进提供给负责的资源管理单位的信息来实现的。 通过从各种来源收集各种类型的信息并且通过改进所述信息以实现确定网络的资源需求的参数的增加的可预测性来实现这种改进。

公开(公告)号：US06366765B1

公开(公告)日：2002-04-02

申请号：US09276712

申请日：1999-03-26

申请人： Naoki Hongo ,  Tetsuhiko Miyatani ,  Kenzo Urabe ,  Zhou Changming

发明人： Naoki Hongo ,  Tetsuhiko Miyatani ,  Kenzo Urabe ,  Zhou Changming

IPC分类号： H04B118

CPC分类号： H03G3/3078 ,  H03G3/3068 ,  H03J3/08 ,  H04B1/30

摘要： The present invention intends to provide a receiver which receives a signal by switching a plurality of communication systems, wherein a circuit scale is reduced to intend to the miniaturization of a device. The receiver converts a received signal to a base band signal by a local oscillation frequency based on the selected communication system by a mixer, limits a band by an LPF through which signals of all communication systems can pass, performs a band limitation based on the communication system by weighting with a tap coefficient based on the selected communication system to synthesis by a transversal filter, and demodulates a signal by a demodulation system based on the selected communication system by a demodulating unit.

摘要翻译： 本发明旨在提供一种通过切换多个通信系统来接收信号的接收机，其中减小了电路规模以意图使设备的小型化。 接收机通过混频器基于所选择的通信系统将接收到的信号转换为基带信号，通过本地振荡频率，通过所有通信系统的信号可以通过的LPF限制频带，基于通信来执行频带限制 系统，通过基于所选择的通信系统的抽头系数进行加权以通过横向滤波器进行合成，并且由解调单元基于所选择的通信系统由解调系统解调信号。

公开(公告)号：US06330292B1

公开(公告)日：2001-12-11

申请号：US09197597

申请日：1998-11-23

申请人： Paul Dent ,  Kenzo Urabe

发明人： Paul Dent ,  Kenzo Urabe

IPC分类号： H04L2730

CPC分类号： H04B1/70752 ,  G06F17/15 ,  H04B1/70751 ,  H04B1/7093 ,  H04B1/7095 ,  H04B2201/70707

摘要： A matched filter for use in a radio telephone receiver that receives Code Division Multiple Access (CDMA) signals. The matched filter produces precombinations of input values to significantly reduce the number of multiplication and addition operations, compared to conventional matched filters, required to produce a correlation value. This reduced number of required operations, along with a reduced number of delay elements required to despread CDMA signals, significantly reduces the overall power consumption of the matched filter. The use of such a matched filter in a device like a cellular phone, for example, would thus lead to longer battery life.

摘要翻译： 用于接收码分多址（CDMA）信号的无线电话接收机中的匹配滤波器。 与产生相关值所需的常规匹配滤波器相比，匹配滤波器产生输入值的预组合以显着减少乘法和加法运算的数量。 所需操作的减少数量以及解扩CDMA信号所需的延迟元件数量减少，显着降低了匹配滤波器的总功耗。 因此，例如在诸如蜂窝电话的设备中使用这样的匹配滤波器将导致更长的电池寿命。

公开(公告)号：US5844937A

公开(公告)日：1998-12-01

申请号：US744954

申请日：1996-11-07

申请人： Changming Zhou ,  Guoliang Shou ,  Makoto Yamamoto ,  Kenzo Urabe ,  Sunao Takatori

发明人： Changming Zhou ,  Guoliang Shou ,  Makoto Yamamoto ,  Kenzo Urabe ,  Sunao Takatori

IPC分类号： H03H15/00 ,  H03H11/04 ,  H03H17/02 ,  H04B1/7093 ,  H04J13/00 ,  H04B15/00

CPC分类号： H04B1/7093 ,  H03H11/04 ,  H03H17/0254

摘要： The present invention solves the conventional problems and has an object to provide a matched filter system of high process in speed, a small size and low electric power consumption. The matched filter circuits of each matched filter set is allocated different n combinations of M/n digits selected from the M length PN code sequence picking one out of every n digits, cyclically performs sampling every 1 chip time duration the input signals to be inputted to each set constructed by matched filter circuits by n sets each of which including n matched filter circuits, and calculates the sum of outputs of all matched filter circuits.

摘要翻译： 本发明解决了以往的问题，其目的在于提供一种速度快，体积小，功耗低的匹配滤波系统。 每个匹配滤波器组的匹配滤波器电路被分配从从n个数字中选出一个的M个长度PN码序列中选择的M / n个数字的不同n个组合，每1个码片持续时间周期地执行要输入的输入信号的采样 每组由匹配滤波器电路构成，每组包括n个匹配滤波器电路，并且计算所有匹配滤波器电路的输出之和。

公开(公告)号：US5812546A

公开(公告)日：1998-09-22

申请号：US802635

申请日：1997-02-19

申请人： Changming Zhou ,  Guoliang Shou ,  Xuping Zhou ,  Makoto Yamamoto ,  Kenzo Urabe ,  Sunao Takatori

发明人： Changming Zhou ,  Guoliang Shou ,  Xuping Zhou ,  Makoto Yamamoto ,  Kenzo Urabe ,  Sunao Takatori

IPC分类号： H04B1/707 ,  H04B1/7093 ,  H04J13/04

CPC分类号： H04B1/7093

摘要： The demodulator has a plurality of matched filters in parallel. Each matched filter has a different binary PN code, a plurality of sample holders, a plurality of multipliers, an adder, and a controller. The sample holders has a common input, a switch, a first capacitor, a first inverse amplifier with an output and an input connected to the common input through the switch and the capacitor, and a first feedback capacitor for feeding the output of the first inverse amplifier back to the input. Each multiplier has a first and second sub-multiplexers, one of sub-multiplexer selecting corresponding sample holder output and another sub-multiplexer selecting a reference voltage.

摘要翻译： 解调器具有并联的多个匹配滤波器。 每个匹配滤波器具有不同的二进制PN码，多个采样保持器，多个乘法器，加法器和控制器。 样本保持器具有公共输入，开关，第一电容器，具有输出的第一反相放大器和通过开关和电容器连接到公共输入的输入端，以及用于馈送第一反相器的输出的第一反馈电容器 放大器返回输入。 每个乘法器具有第一和第二子复用器，其中一个子复用器选择对应的采样保持器输出，另一个副多路复用器选择参考电压。

公开(公告)号：US5185710A

公开(公告)日：1993-02-09

申请号：US813807

申请日：1991-12-26

申请人： Kenzo Urabe

发明人： Kenzo Urabe

IPC分类号： G06F1/03

CPC分类号： G06F1/0321

摘要： A quaternary-level waveform generator in which a modulation wave prior to a band restriction (a quaternary-level square wave sequence) is separated into two binary-level square wave sequences and as waveform components prestored corresponding waveform component outputs after a predetermined band restriction are read out of a waveform component generating read-only memory and added to generate a desired quaternary-level waveform shaped by the band-restriction.

摘要翻译： 将在频带限制之前的调制波（四级电平方波序列）分离为两个二进制水平方波序列并作为在预定频带限制之后预先存储的相应波形分量输出的波形分量的四级电平波形发生器是 从产生只读存储器的波形分量中读出，并被添加以产生由频带限制形成的期望的四级电平波形。

公开(公告)号：US5181182A

公开(公告)日：1993-01-19

申请号：US813806

申请日：1991-12-26

申请人： Kenzo Urabe ,  Yoshihiko Akaiwa

发明人： Kenzo Urabe ,  Yoshihiko Akaiwa

IPC分类号： G06F1/035

CPC分类号： G06F1/0356 ,  G06F2101/04

摘要： A multi-level band-restricted waveform generator in which a modulation wave prior to band restriction (M-level signal sequence) is broken into elementary waveforms and a plurality (N-nary) of prestored waveform components corresponding to the elementary waveforms after predetermined band restrictions are read out of a read-only memory for generating waveform components and added to generate a desired multi-level band-restricted waveform.

摘要翻译： 一种多级带限制波形发生器，其中频带限制之前的调制波（M级信号序列）被分解为基本波形和与预定频带之后的基本波形相对应的多个（N个）预先存储的波形分量 读出用于产生波形分量的只读存储器的限制，并且被添加以产生期望的多电平频带限制波形。