公开(公告)号：US5283103A

公开(公告)日：1994-02-01

申请号：US953138

申请日：1992-09-29

申请人： Kiyotaka Nakai ,  Masahiro Narita

发明人： Kiyotaka Nakai ,  Masahiro Narita

IPC分类号： B29C43/02 ,  B29C70/08 ,  B29K105/10 ,  B29L31/30 ,  B32B27/04 ,  B60J7/00 ,  B60J7/02 ,  B62D25/06 ,  B32B3/00 ,  B32B17/02

CPC分类号： B29C70/081 ,  B29C70/086 ,  B32B27/04 ,  Y10T428/24124 ,  Y10T428/24521 ,  Y10T428/24537 ,  Y10T428/2457 ,  Y10T428/24612 ,  Y10T428/24628 ,  Y10T428/24694 ,  Y10T428/2913 ,  Y10T428/2933

摘要： A fiber-reinforced plastic product comprises a first member which is formed by pressing from a sheet molding compound made of an unsaturated polyester resin and having a first portion which should be reinforced and a second portion having an area adjacent to the first portion, a second member made of a uni directional sheet molding compound made of the unsaturated polyester resin, including a bundle of glass fibers which is continuously formed so as to be arranged in the same direction, and overlayed on the first portion by the press formation, and a concave portion formed in the area. Thereby, the second member is prevented from expanding along the first member during the press formation.

摘要翻译： 纤维增强塑料制品包括第一构件，该第一构件通过从由不饱和聚酯树脂制成的片状模塑料压制而形成，并且具有应被加强的第一部分和具有与第一部分相邻的区域的第二部分，第二部分 由不饱和聚酯树脂制成的单向片状模塑料制成的构件，包括连续地形成为沿相同方向布置的玻璃纤维束，并通过压制成型覆盖在第一部分上， 部分形成在该区域。 由此，在压制成形期间，防止第二构件沿着第一构件膨胀。

公开(公告)号：US5431995A

公开(公告)日：1995-07-11

申请号：US63680

申请日：1993-05-20

申请人： Masahiro Narita ,  Kiyotaka Nakai ,  Masamichi Togo

发明人： Masahiro Narita ,  Kiyotaka Nakai ,  Masamichi Togo

IPC分类号： B29B11/16 ,  B29C70/02 ,  B29C70/50 ,  B29K105/06 ,  B32B5/28 ,  B32B27/12 ,  B32B27/20 ,  B32B38/08 ,  B32B27/04 ,  B32B27/06

CPC分类号： B32B38/08 ,  B29C70/025 ,  B29C70/028 ,  B29C70/502 ,  B29C70/508 ,  B32B27/12 ,  B29K2105/165 ,  Y10T428/252 ,  Y10T442/3667 ,  Y10T442/3691 ,  Y10T442/3699

摘要： A light weight molding compound comprises an inner layer constituted by a thermosetting resin including a hollow filler, cloth layers constituted by woven or non-woven fabric adhered on the both surfaces of the inner layer, and surface layers constituted by a thermosetting resin including reinforcing fiber and integrally connected to the both surfaces of the inner layer by way of the cloth layers. The light weight sheet molding compound has superior surface quality to be painted after molding.

摘要翻译： 轻质成型复合物包括由包含中空填料的热固性树脂构成的内层，粘附在内层两面的织造或无纺布构成的布层以及由包含增强纤维的热固性树脂构成的表层 并且通过布层与内层的两个表面一体地连接。 轻质片状模塑料在成型后具有优异的表面质量。

公开(公告)号：US5355092A

公开(公告)日：1994-10-11

申请号：US83546

申请日：1993-06-24

申请人： Akio Kosaka ,  Toshinori Iinuma ,  Masahiro Narita

发明人： Akio Kosaka ,  Toshinori Iinuma ,  Masahiro Narita

IPC分类号： H04L7/033 ,  H04L27/233 ,  H03D3/00 ,  H03D3/18

CPC分类号： H04L27/2337 ,  H04L7/0334

摘要： Apparatus for demodulating an incoming digitally phase modulated analog signal to reproduce symbol data carried by the signal. Specifically, the demodulator relies on first counting, on a free-running and modulo basis, pulses of a fixed-frequency reference clock signal to form a counted value. The incoming signal is converted to a one-bit phase modulated digital signal. At the occurrence of a pre-defined point in the one-bit phase modulated signal, typically a rising edge occurring at the symbol rate, the counted value is stored as phase information. Within each symbol period, a difference between current and immediately prior counted values, i.e. the latter being a current value but delayed by one symbol period, is determined. This difference, i.e. phase change data, is subsequently sampled and decoded to yield reproduced symbol data, as well as, used, through a phase locked loop, to generate a data clock and the symbol clock.

摘要翻译： 用于解调输入的数字相位调制的模拟信号以再现由该信号携带的符号数据的装置。 具体地，解调器依赖于以自由运行和模数为基础的固定频率参考时钟信号的脉冲的第一计数以形成计数值。 输入信号被转换为一位相位调制数字信号。 在一位相位调制信号中出现预定义点时，通常是以符号速率发生的上升沿，计数值被存储为相位信息。 在每个符号周期内，确定当前值和紧接在前的计数值之间的差值，即后者是当前值但延迟了一个符号周期。 该差异即相变数据随后被采样和解码以产生再现的符号数据，以及通过锁相环使用以产生数据时钟和符号时钟。

公开(公告)号：US07203468B2

公开(公告)日：2007-04-10

申请号：US10486358

申请日：2002-03-04

申请人： Masahiro Narita ,  Yasunori Akatsuka

发明人： Masahiro Narita ,  Yasunori Akatsuka

IPC分类号： H04B1/04 ,  H04L25/03

CPC分类号： H04B1/0475

摘要： An RF circuit (131–138) satisfies Pnoise+NF+G≦Plim+sW (0≦s≦4) at an edge of a guard band with respect to a required transmission level PAll, an upper tolerance level of out-of-band noise Plim, a guard bandwidth W, and a noise level Pnoise, where NF is a noise figure and G is a gain. An IF circuit (121–123) satisfies PAll≦Pin+G, where PIF is an output level of a BPF (123). Out-of-band noise levels are reduced to Pnoise by the steep BPF (123). The RF circuit (131–138) is structured so that noise from a local oscillator circuit (134) does not surpass noise from the IF circuit (121–123). Reductions in power consumption are thus realized in addition to guard bandwidth reductions, because of being able to eliminate out-of-band noise from an amplifier (138) using a low-loss filter (140) having an attenuation slope s.

摘要翻译： 射频电路（131-138）在保护频带的边缘相对于所需传输电平PAll满足Pnoise + NF + G <= Plim + sW（0≤s≤4），上限公差电平 带宽噪声Plim，保护带宽W和噪声电平Pnoise，其中NF是噪声系数，G是增益。 IF电路（121-123）满足PAll <= Pin + G，其中PIF是BPF（123）的输出电平。 陡峭的BPF（123）将带外噪声水平降低到Pnoise。 RF电路（131-138）被构造成使得来自本地振荡器电路（134）的噪声不超过来自IF电路（121-123）的噪声。 由于能够使用具有衰减斜率s的低损耗滤波器（140）能够消除来自放大器（138）的带外噪声，因此除了保护带宽降低之外，还实现功耗的降低。

公开(公告)号：US06385464B1

公开(公告)日：2002-05-07

申请号：US09297077

申请日：1999-07-02

申请人： Masahiro Narita ,  Yasunori Akatsuka ,  Yasukazu Kamei

发明人： Masahiro Narita ,  Yasunori Akatsuka ,  Yasukazu Kamei

IPC分类号： H04Q720

CPC分类号： H04B7/0602 ,  H04B7/0802

摘要： The present invention is aimed at providing a base station for mobile communication systems which is capable of communicating with more mobile station than in the prior art while keeping high communication quality and restraining a rise in production cost. The base station of the present invention is used in mobile communication systems in which diversity is conducted. Such a base station includes an RF unit for generating a plurality of high-frequency transmission signals, an antenna selecting unit for switching connection of the transmission signal output of the RF unit from one antenna to another, a cross switch 460 for switching the data transmission route between straight connection and cross connection by inputting transmission data from TDMA processing units 471 and 472 interchangeably to transmitting units 433 and 434 of the RF unit, and a control unit 446 for controlling the antenna selecting unit so that the transmission signals will be connected to different antennas, respectively.

摘要翻译： 本发明旨在提供一种移动通信系统的基站，其能够与现有技术中的移动站进行通信，同时保持高的通信质量并抑制生产成本的上升。 本发明的基站用于进行分集的移动通信系统中。 这样的基站包括用于产生多个高频传输信号的RF单元，用于将RF单元的输出信号从一个天线切换到另一天线的连接的天线选择单元，用于切换数据传输的交叉开关460 将来自TDMA处理单元471和472的传输数据可交换地连接到RF单元的发射单元433和434的直接连接和交叉连接之间的路由，以及控制单元446，用于控制天线选择单元，使得发送信号将被连接到 不同的天线。

公开(公告)号：US07200421B2

公开(公告)日：2007-04-03

申请号：US10963552

申请日：2004-10-14

申请人： Masahiro Narita

发明人： Masahiro Narita

IPC分类号： H04B1/38 ,  H04B1/16 ,  H04B1/02

CPC分类号： H04B7/0874 ,  H01Q1/246 ,  H01Q3/24 ,  H01Q3/26 ,  H01Q25/002 ,  H04B7/0691

摘要： A base station device provided with a plurality of antennas has a mode, in which all the antennas are used, and a mode, in which the plurality of antennas are divided into a plurality of groups each including two or more antennas to be used independently. An array antenna pattern is formed selectively in these modes. When the array antenna pattern is to be formed in the mode of using all the antennas, a signal of one synthesizer is applied to transmission/reception circuits of all the antennas. In the mode of using antennas divided into the plurality of groups, signals of different synthesizers are supplied to the transmission/reception circuits of the antennas.

摘要翻译： 设置有多个天线的基站装置具有其中使用所有天线的模式，以及其中多个天线被分成多个组的模式，每个组包括要独立使用的两个或更多个天线。 在这些模式中选择性地形成阵列天线图案。 当以所有天线的方式形成阵列天线方向图时，将一个合成器的信号施加到所有天线的发送/接收电路。 在使用分成多组的天线的模式中，不同合成器的信号被提供给天线的发送/接收电路。

公开(公告)号：US20050085266A1

公开(公告)日：2005-04-21

申请号：US10963552

申请日：2004-10-14

申请人： Masahiro Narita

发明人： Masahiro Narita

IPC分类号： H04B7/08 ,  H01Q1/24 ,  H01Q3/24 ,  H01Q3/26 ,  H01Q5/00 ,  H01Q25/00 ,  H04B1/38 ,  H04B7/04 ,  H04B7/06 ,  H04B7/10 ,  H04B7/26 ,  H04W16/28 ,  H04W28/18

CPC分类号： H04B7/0874 ,  H01Q1/246 ,  H01Q3/24 ,  H01Q3/26 ,  H01Q25/002 ,  H04B7/0691

摘要： A base station device provided with a plurality of antennas has a mode, in which all the antennas are used, and a mode, in which the plurality of antennas are divided into a plurality of groups each including two or more antennas to be used independently. An array antenna pattern is formed selectively in these modes. When the array antenna pattern is to be formed in the mode of using all the antennas, a signal of one synthesizer is applied to transmission/reception circuits of all the antennas. In the mode of using antennas divided into the plurality of groups, signals of different synthesizers are supplied to the transmission/reception circuits of the antennas.

摘要翻译： 设置有多个天线的基站装置具有其中使用所有天线的模式，以及其中多个天线被分成多个组的模式，每个组包括要独立使用的两个或更多个天线。 在这些模式中选择性地形成阵列天线图案。 当以所有天线的方式形成阵列天线方向图时，将一个合成器的信号施加到所有天线的发送/接收电路。 在使用分成多组的天线的模式中，不同合成器的信号被提供给天线的发送/接收电路。

公开(公告)号：US5400024A

公开(公告)日：1995-03-21

申请号：US021325

申请日：1993-02-23

申请人： Satoru Nishimura ,  Niro Imaoka ,  Masahiro Narita

发明人： Satoru Nishimura ,  Niro Imaoka ,  Masahiro Narita

IPC分类号： H04B7/26 ,  G10L19/14 ,  H03M7/48 ,  H04B14/04 ,  H03M7/42 ,  H03M5/00

CPC分类号： G10L19/18 ,  H03M7/48

摘要： Base station equipment of a digital mobile communication system includes a digital audio signal processing apparatus provided for each message channel for low bit rate coding and decoding a digital audio signal. Each digital audio signal processing apparatus includes a plurality of memories that store a plurality of low bit rate coding/decoding programs differing from each other to comply with different low bit rate coding/decoding methods. A system control circuit determines the low bit rate coding/decoding method of an applied digital signal for controlling a selector to select a memory that stores the corresponding low bit rate coding/decoding program. As a result, the digital audio signal processing apparatus perform digital to digital conversion of the applied digital signal according to the low bit rate coding/decoding program stored in the selected memory.

摘要翻译： 数字移动通信系统的基站设备包括为每个消息信道提供的数字音频信号处理装置，用于低比特率编码和解码数字音频信号。 每个数字音频信号处理装置包括存储彼此不同的多个低比特率编码/解码程序的多个存储器，以符合不同的低比特率编码/解码方法。 系统控制电路确定应用数字信号的低比特率编码/解码方法，用于控制选择器选择存储相应的低比特率编码/解码程序的存储器。 结果，数字音频信号处理装置根据存储在所选择的存储器中的低比特率编码/解码程序对所应用的数字信号进行数字到数字转换。

公开(公告)号：US07373126B2

公开(公告)日：2008-05-13

申请号：US10553732

申请日：2004-04-21

申请人： Masahiro Narita

发明人： Masahiro Narita

IPC分类号： H04B1/06

CPC分类号： H04W52/52 ,  H03M1/1023 ,  H03M1/187 ,  H04B1/30 ,  H04B7/0848 ,  H04B7/086 ,  H04B17/21 ,  H04W52/42

摘要： The gain control signal generating unit generates a gain control signal, using a signal yielding the greatest level among signals of the respective signal processing units. The gain standardizing unit stores, in the offset storage units, offsets corresponding to gain deviations occurring in the respective signal processing units when gains of the variable gain amplifiers are uniformly controlled using the gain control signal. The offsets are added to the gain control signal for each signal processing unit, and the variable gain amplifiers are controlled, using the respective offset-added gain control signals. Under the control of the calibration control unit, the calibration signal supply unit and offset determining unit supply a calibration signal and a gain control signal for calibration, respectively. The offset determining unit determines offsets to standardize the levels of signals of the signal processing units, and updates the offsets storage units with the determined offsets.

摘要翻译： 增益控制信号生成单元使用在各个信号处理单元的信号中产生最大电平的信号来生成增益控制信号。 增益标准化单元在偏移存储单元中存储对应于在各个信号处理单元中出现的增益偏差的偏移量，当利用增益控制信号均匀地控制可变增益放大器的增益时。 将偏移量加到每个信号处理单元的增益控制信号中，并且使用相应的补偿增益控制信号来控制可变增益放大器。 在校准控制单元的控制下，校准信号提供单元和偏移确定单元分别提供用于校准的校准信号和增益控制信号。 偏移确定单元确定偏移以标准化信号处理单元的信号电平，并且以所确定的偏移量来更新偏移量存储单元。

公开(公告)号：US20070004353A1

公开(公告)日：2007-01-04

申请号：US10553732

申请日：2004-04-21

申请人： Masahiro Narita

发明人： Masahiro Narita

IPC分类号： H04B17/02 ,  H04B1/06 ,  H04B7/00

CPC分类号： H04W52/52 ,  H03M1/1023 ,  H03M1/187 ,  H04B1/30 ,  H04B7/0848 ,  H04B7/086 ,  H04B17/21 ,  H04W52/42

摘要： The gain control signal generating unit generates a gain control signal, using a signal yielding the greatest level among signals of the respective signal processing units. The gain standardizing unit stores, in the offset storage units, offsets corresponding to gain deviations occurring in the respective signal processing units when gains of the variable gain amplifiers are uniformly controlled using the gain control signal. The offsets are added to the gain control signal for each signal processing unit, and the variable gain amplifiers are controlled, using the respective offset-added gain control signals. Under the control of the calibration control unit, the calibration signal supply unit and offset determining unit supply a calibration signal and a gain control signal for calibration, respectively. The offset determining unit determines offsets to standardize the levels of signals of the signal processing units, and updates the offsets storage units with the determined offsets.

摘要翻译： 增益控制信号生成单元使用在各个信号处理单元的信号中产生最大电平的信号来生成增益控制信号。 增益标准化单元在偏移存储单元中存储对应于在各个信号处理单元中出现的增益偏差的偏移量，当利用增益控制信号均匀地控制可变增益放大器的增益时。 将偏移量加到每个信号处理单元的增益控制信号中，并且使用相应的补偿增益控制信号来控制可变增益放大器。 在校准控制单元的控制下，校准信号提供单元和偏移确定单元分别提供用于校准的校准信号和增益控制信号。 偏移确定单元确定偏移以标准化信号处理单元的信号电平，并且以所确定的偏移量来更新偏移量存储单元。