-
公开(公告)号：US5408514A
公开(公告)日：1995-04-18
申请号：US199572
申请日：1994-02-22
申请人： Masayuki Sakamoto , Masaharu Hata
发明人： Masayuki Sakamoto , Masaharu Hata
CPC分类号： H04W36/0055 , H04B7/022 , H04W36/18 , H04W36/30 , H04B17/309 , H04B17/382 , H04W16/32 , H04W92/16 , H04W92/20
摘要： A method of handover and route diversity in a mobile radio communication which is less time consuming and capable of improving the frequency spectrum utilization efficiency and securing the high quality of service regardless of the moving speed of the mobile station. In the method, a loop transmission line by which each base station is connected with neighboring base stations is provided; a handover information is transmitted through the loop transmission line, where the handover information is relayed by each base station from one of the neighboring base stations to another one of the neighboring base station; and the handover of a communication of a mobile station from one traffic channel of one base station to an idle traffic channel of another base station is carried out by using the handover information transmitted through the loop transmission line. The method can also be applied to a route diversity reception.
摘要翻译： 一种移动无线电通信中的切换和路由分集的方法，其费用较低，并且能够提高频谱利用效率并确保高质量的服务，而与移动台的移动速度无关。 在该方法中，提供了每个基站与相邻基站连接的环路传输线路; 通过环路传输线路传送切换信息，其中切换信息由每个基站从相邻基站之一中继到相邻基站中的另一个基站; 并且通过使用通过环路传输线传输的切换信息来执行移动站从一个基站的一个业务信道到另一个基站的空闲业务信道的切换。 该方法也可以应用于路由分集接收。
-
公开(公告)号：US4339817A
公开(公告)日：1982-07-13
申请号：US183333
申请日：1980-09-02
申请人： Masaharu Hata , Kotaro Kato
发明人： Masaharu Hata , Kotaro Kato
CPC分类号： H04L7/033
摘要： A clock recovery circuit includes an oscillator having a frequency which is substantially equal to the clock frequency of bursts which are transmitted from a plurality of stations. A phase difference detector circuit responds to phase differences between clock signals extracted from each of the bursts and from the output from the oscillator. An averaging circuit averages the detected phase differences over an interval which is designated by a first control signal. A memory circuit stores the averaged phase difference in response to a second control signal and reads out the stored phase differences in response to a third control signal. A control circuit generates the first to third control signals in response to the output from the oscillator. A phase shift circuit shifts the phase of the output from the oscillator, based on the phase difference read out from the memory circuit. This generates and recovers the original clock pulse signal. The clock of the first burst corresponding to the stored phase difference is used as the clock for a second burst from the same station which transmits the first burst.
摘要翻译： 时钟恢复电路包括具有基本上等于从多个站发送的突发的时钟频率的频率的振荡器。 相位差检测器电路响应从每个突发提取的时钟信号与来自振荡器的输出的相位差。 平均电路在由第一控制信号指定的间隔上对检测到的相位差进行平均。 存储电路响应于第二控制信号存储平均的相位差，并响应于第三控制信号读出存储的相位差。 控制电路响应于来自振荡器的输出而产生第一至第三控制信号。 基于从存储器电路读出的相位差，相移电路使振荡器的输出的相位移位。 这将产生并恢复原始时钟脉冲信号。 对应于所存储的相位差的第一脉冲串的时钟被用作来自发送第一脉冲串的同一电台的第二脉冲串的时钟。
-
3.发明授权
公开(公告)号：US5518389A
公开(公告)日：1996-05-21
申请号：US395636
申请日：1995-02-28
申请人： Akira Nonomura , Masaharu Hata
发明人： Akira Nonomura , Masaharu Hata
CPC分类号： B29C45/77 , B29C45/27 , B29C45/2737 , B29C45/78 , B29C2045/2687
摘要： A multi-cavity mold has flow-distribution adjusting heaters provided for respective ones of main runners branching from a common channel so as to correspond to a plurality of cavities. The amount of resin charged into the cavities is made uniform from one cavity to the next by independently controlling the heaters. Sub-runners leading respective ones of the main runners are respectively provided with heaters for adjusting gate finish. The gate finish and moldability are improved by independently controlling these heaters. The main runners hold enough resin for at least one shot, and pressure loss in the sub-runners is made equal to or greater than pressure loss in the main runners.
摘要翻译： 多空腔模具具有流量分配调节加热器，其设置用于从公共通道分支的相应主流道，以对应于多个空腔。 通过独立地控制加热器，装入空腔中的树脂的量从一个空腔到下一个空腔是均匀的。 分别引导各主要跑步者的子跑道分别设有用于调节门完成的加热器。 通过独立控制这些加热器，可以提高浇口整理和成型性能。 主跑道持有至少一次足够的树脂，亚运球员的压力损失等于或大于主跑步者的压力损失。
-
4.发明申请TRANSMITTER, RECEIVER, POWER AMPLIFICATION METHOD, AND SIGNAL DEMODULATION METHOD 审中-公开发射机，接收机，功率放大方法和信号解调方法公开(公告)号：US20100219884A1
公开(公告)日：2010-09-02
申请号：US12714771
申请日：2010-03-01
IPC分类号： G06G7/12
CPC分类号： H04L27/2624 , H04L27/2626 , H04L27/2647
摘要： There is provided a transmitter including a nonlinear input-output conversion characteristic control unit configured to determine a nonlinear input-output conversion characteristic for converting a signal depending on a usage status of a frequency band; an amplitude control unit configured to convert an amplitude of the signal based on the determined nonlinear input-output conversion characteristic; and a transmission power amplification unit configured to amplify power of the signal with the converted amplitude. There is also provided a transmitter including a nonlinear input-output conversion characteristic control unit configured to determine a nonlinear input-output conversion characteristic for converting a signal depending on a usage status of a frequency band; plural transmission power amplification units having different nonlinear input-output conversion characteristics; and a selecting unit configured to select one of the plural transmission power amplification units based on the determined nonlinear input-output conversion characteristic.
摘要翻译： 提供了一种发射机，包括：非线性输入 - 输出转换特性控制单元，被配置为根据频带的使用状态确定用于转换信号的非线性输入 - 输出转换特性; 幅度控制单元，被配置为基于所确定的非线性输入 - 输出转换特性来转换所述信号的幅度; 以及发送功率放大单元，被配置为以转换的幅度放大所述信号的功率。 还提供了一种发射机，包括：非线性输入 - 输出转换特性控制单元，被配置为根据频带的使用状态确定用于转换信号的非线性输入 - 输出转换特性; 具有不同非线性输入输出转换特性的多个发送功率放大单元; 以及选择单元，被配置为基于所确定的非线性输入 - 输出转换特性来选择所述多个发送功率放大单元中的一个。
-
公开(公告)号：US07103022B2
公开(公告)日：2006-09-05
申请号：US10073317
申请日：2002-02-13
申请人： Hitoshi Yoshino , Toru Otsu , Masaharu Hata
发明人： Hitoshi Yoshino , Toru Otsu , Masaharu Hata
CPC分类号： H04W16/28 , H04W16/14 , H04W16/24 , H04W16/30 , H04W36/00 , H04W72/0426 , H04W72/0446 , H04W72/082
摘要： A communication control method used in a cellular mobile communication system in which each base station can radiate radio wave beams to a plurality of directions and each base station communicates with mobile stations by using the same frequency is provided in which the method includes the step of: controlling first timing at which a base station radiates a first radio wave beam such that the first timing is different from second timing at which another base station radiates a second radio wave beam which may cause interference with the first radio wave beam.
-
公开(公告)号：US5411686A
公开(公告)日：1995-05-02
申请号：US995715
申请日：1992-12-23
申请人： Masaharu Hata
发明人： Masaharu Hata
CPC分类号： B29C45/78
摘要： The state in which a mold is filled with molten resin is held constant at all times by holding constant the temperature of the mold at the start of injection of the resin, thus suppressing a fluctuation in the weight and dimensions of the molded articles. Cooling channel are arranged around a cavity of an injection mold filled with a heated molten resin. Use is made of a response model of a variation in mold temperature in the injection mold. The variation in mold temperature, coolant temperature and temperature of the filling molten resin in a molding cycle are measured, and a parameter (time constant) of the response model is decided using these measured values. If the molding cycle is changed or the measured mold temperature develops a difference with respect to a standard mold temperature, a target value of coolant temperature is calculated using the response model in such a manner that the mold temperature at the start of injection will be held constant at all times, and control of the coolant temperature is carried out using this target coolant temperature.
摘要翻译： 通过在树脂注射开始时保持模具的温度恒定，模具中填充有熔融树脂的状态始终保持恒定，从而抑制模制品的重量和尺寸的波动。 冷却通道布置在填充有加热的熔融树脂的注射模具的空腔周围。 使用注射模具中模具温度变化的响应模型。 测量成型周期中填充熔融树脂的模具温度，冷却剂温度和温度的变化，并且使用这些测量值来确定响应模型的参数（时间常数）。 如果模制周期改变或测量的模具温度相对于标准模具温度产生差异，则使用响应模型来计算冷却剂温度的目标值，使得开始注射时的模具温度将被保持 始终是恒定的，并且使用该目标冷却剂温度进行冷却剂温度的控制。
-
公开(公告)号：US5670868A
公开(公告)日：1997-09-23
申请号：US546036
申请日：1995-10-20
CPC分类号： G05F3/265
摘要： A constant-voltage power source circuit includes a first current mirror circuit having a diode and a first transistor and a second current mirror circuit having at least second and third transistors, which sets a current flowing to the first current mirror circuit to be substantially equal to a current flowing to the second mirror circuit, and provides the current flowing to the second current mirror circuit to a fourth transistor that determines an output voltage. With this arrangement, a current flowing to the current mirror circuits structured by the diode and transistors is determined by a forward characteristic of the diode, and this current becomes a constant current which is hardly affected by a variation of a power source voltage. When this current flows to the two current mirror circuits including transistors and then flows to the transistor which determines an output voltage, it is possible to hold a voltage between the base and the emitter of the transistor which determines an output voltage, at substantially a constant value without being affected by a variation of the power source voltage.
摘要翻译： 恒压电源电路包括具有二极管和第一晶体管的第一电流镜电路和具有至少第二和第三晶体管的第二电流镜电路，其将流过第一电流镜电路的电流设置为基本等于 流过第二反射镜电路的电流，并且将流过第二电流镜电路的电流提供给确定输出电压的第四晶体管。 通过这种布置，流过二极管和晶体管构成的电流镜电路的电流由二极管的正向特性决定，该电流成为几乎不受电源电压变化影响的恒定电流。 当该电流流向包括晶体管的两个电流镜电路，然后流到确定输出电压的晶体管时，可以在晶体管的基极和发射极之间保持基本上恒定的输出电压的电压 而不受电源电压变化的影响。
-
8.发明授权
公开(公告)号：US5419858A
公开(公告)日：1995-05-30
申请号：US983140
申请日：1992-11-30
申请人： Masaharu Hata , Akira Nonomura
发明人： Masaharu Hata , Akira Nonomura
摘要： Molded articles having a constant quality can be obtained at all times irrespective of a fluctuation in resin properties (especially flowability). An output signal from an injection pressure sensor is sampled by a sampling circuit, and an injection-pressure waveform is obtained from injection-pressure data by means of a processing unit. If injection time fluctuates in the injection-pressure waveform, a constant-pressure injection process is judged to be in effect. If the maximum value of injection pressure fluctuates, then the process is judged to be a constant-speed injection process. The set temperature in a temperature setting unit is changed in dependence upon a fluctuation in injection time in the constant-pressure injection process and in dependence upon a fluctuation in the maximum value of injection pressure in the constant-speed injection process. The resin temperature is controlled by controlling heaters via temperature controllers. As a result, injection time or the maximum value of injection pressure is held substantially constant at all times, and so is the flowability of the resin.
摘要翻译： 无论树脂特性（特别是流动性）的波动如何，都可以随时获得具有恒定质量的模制品。 来自喷射压力传感器的输出信号由采样电路采样，并且通过处理单元从喷射压力数据获得喷射压力波形。 如果喷射时间在喷射压力波形中波动，则认为恒压喷射处理是有效的。 如果喷射压力的最大值波动，则判断该过程是恒速喷射过程。 温度设定单元中的设定温度根据恒压喷射处理中的喷射时间的波动以及恒速喷射处理中的喷射压力的最大值的波动而变化。 树脂温度通过温度控制器控制加热器来控制。 结果，注射时间或注射压力的最大值始终保持基本上恒定，并且树脂的流动性也保持恒定。
-
公开(公告)号：US5258980A
公开(公告)日：1993-11-02
申请号：US684924
申请日：1991-04-24
申请人： Akihiro Maebara , Seizo Onoe , Fumiyuki Adachi , Masaharu Hata , Toshinori Fujii
发明人： Akihiro Maebara , Seizo Onoe , Fumiyuki Adachi , Masaharu Hata , Toshinori Fujii
摘要： A radio channel switching control method for a digital mobile communication system employing TDMA techniques, in which a mobile station stores the synchronized state in the current channel, switches the current channel to a new one and performs a pull-in operation for a predetermined period of time and stores the synchronized state obtained by the pull-in operation. The mobile station establishes synchronism with the new channel by repeating a sequence of steps of performing communication again in the synchronized state in the current channel and performing the pull-in operation in the stored synchronized state for the new channel. Thus, it is possible to implement radio channel switching free from momentary interruption of communication, by maintaining communication in the current channel until synchronization with the new channel is established and communication is permitted. A common reference clock is applied to a plurality of pieces of radio equipment in a base station and each radio equipment obtains a synchronized state parameter for an arbitrary slot of the channel allocated thereto. When it is judged that channel switching is necessary, the synchronized state parameter in the current channel is set in the radio equipment of the new channel, by which the radio equipment of the new channel is caused to immediately start reception in the same synchronized state as in the current channel.
摘要翻译： PCT No.PCT / JP90 / 01076 Sec。 371日期1991年4月24日 102（e）日期1991年4月24日PCT 1990年8月24日PCT PCT。 公开号WO91 / 03110 日期1991年3月7日。一种采用TDMA技术的数字移动通信系统的无线电信道切换控制方法，其中移动台在当前信道中存储同步状态，将当前信道切换到新的信道， 在预定时间段内操作，并存储通过拉入操作获得的同步状态。 移动站通过重复在当前信道中处于同步状态的再次执行通信的步骤的顺序来与新信道建立同步，并且在新信道的存储的同步状态下执行引入操作。 因此，可以通过维持当前信道中的通信，直到与新信道的同步建立并且允许通信，来实现无瞬间中断通信的无线电信道切换。 公共参考时钟被应用于基站中的多个无线电设备，并且每个无线电设备获得用于其分配的信道的任意时隙的同步状态参数。 当判断需要频道切换时，在新频道的无线电设备中设置当前频道中的同步状态参数，通过该新频道的无线电设备使得新频道的无线电设备立即以与 在当前频道。
-
公开(公告)号：US06540956B1
公开(公告)日：2003-04-01
申请号：US09576277
申请日：2000-05-24
申请人： Hiroshi Iwamoto , Yuko Tamiya , Naohide Nishimine , Masaharu Hata
发明人： Hiroshi Iwamoto , Yuko Tamiya , Naohide Nishimine , Masaharu Hata
IPC分类号： B29C4900
CPC分类号： B29C49/48 , B29C61/02 , B29C2049/2412 , B29K2023/065 , B29K2023/12
摘要： In order to provide a mold of a shape which has been designed to take into account the deformation occurring during the cooling process, the mold cavity is formed so that the external volume of a molded product obtained by blow molding in this cavity ultimately shrinks by a prescribed percentage of the volume of the mold cavity, and so that in the region of maximum shrinkage the external size of the body portion of the molded product shrinks by a prescribed percentage of the size of the corresponding portion of the mold cavity.
摘要翻译： 为了提供一种被设计成考虑到在冷却过程中发生的变形的形状的模具，模腔形成为使得在该空腔中通过吹塑成型获得的模制产品的外部体积最终会收缩 并且使得在最大收缩区域中，模制品的主体部分的外部尺寸以模具腔的相应部分的尺寸的规定百分比收缩。
-
-
-
-
-
-
-
-
-
搜索结果
11 条记录 (耗时 0.013 秒)