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1. 发明申请

US20090116572A1 COMMUNICATION APPARATUS AND COMMUNICATION METHOD 有权
标题翻译：通信设备和通信方法
公开(公告)号：US20090116572A1
公开(公告)日：2009-05-07
申请号：US12095053
申请日：2006-11-10
申请人： Suguru Fujita , Kazuaki Takahashi , Akihiko Matsuoka
发明人： Suguru Fujita , Kazuaki Takahashi , Akihiko Matsuoka
IPC分类号： H04B7/02
CPC分类号： H04L7/0091 , G01S7/40 , G01S13/10 , G01S13/878 , G07B15/063 , H04L7/0033 , H04L27/02
摘要： A communication apparatus in which only a terminal having a specific positional relationship can perform communication through a relatively simple arrangement. When initial setting is performed or communication is started, a timing calculating section (104) calculates a time difference corresponding to the difference between a path from an antenna (101) to a terminal (200) and a path from an antenna (102) to the terminal (200), based on a transmission signal from the antenna (101) and a reflection signal provided by having the transmission signal reflected from the antenna (102) or a communication partner, i.e. the terminal (200), and returned back to the antenna (101). Based on the time difference thus calculated, the timing calculating section (104) outputs a signal for regulating the transmission timing of transmission data from the antenna (101) to a variable delay unit (105). The variable delay unit (105) delays transmission timing of the transmission data depending on the timing regulation signal and outputs the delayed transmission data to a modulating/demodulating section (106).
摘要翻译：只有具有特定位置关系的终端才能通过相对简单的配置进行通信的通信装置。当进行初始设定或开始通信时，定时计算部（104）计算与从天线（101）到终端（200）的路径和从天线（102）到终端（200）基于来自天线（101）的发送信号和通过具有从天线（102）反射的发送信号或通信伙伴即终端（200）提供的反射信号，并返回到天线（101）。基于这样计算的时间差，定时计算部（104）将用于将发送数据的发送定时调节的信号从天线（101）输出到可变延迟单元（105）。可变延迟单元（105）根据定时调节信号延迟发送数据的发送定时，并将延迟的发送数据输出到调制/解调部（106）。

2. 发明授权

US08135423B2 Communication apparatus and communication method 有权
标题翻译：通信设备和通信方法
公开(公告)号：US08135423B2
公开(公告)日：2012-03-13
申请号：US12095053
申请日：2006-11-10
申请人： Suguru Fujita , Kazuaki Takahashi , Akihiko Matsuoka
发明人： Suguru Fujita , Kazuaki Takahashi , Akihiko Matsuoka
IPC分类号： H04B7/00
CPC分类号： H04L7/0091 , G01S7/40 , G01S13/10 , G01S13/878 , G07B15/063 , H04L7/0033 , H04L27/02
摘要： A communication apparatus is provided in which only a terminal having a specific positional relationship can perform communication through a relatively simple arrangement. When initial setting is performed or communication is started, a timing calculator calculates a time difference corresponding to the difference between a path from a first antenna to a terminal and a path from a second antenna to the terminal, based on a transmission signal from the first antenna and a reflection signal provided by having the transmission signal reflected from the second antenna or a communication partner, i.e. the terminal, and returned back to the first antenna. Based on the time difference thus calculated, the timing calculator outputs a signal for regulating the transmission timing of transmission data from the first antenna to a variable delay unit. The variable delay unit delays transmission timing of the transmission data depending on the timing regulation signal and outputs the delayed transmission data to a modulator/demodulator.
摘要翻译：提供一种通信装置，其中仅具有特定位置关系的终端可以通过相对简单的布置来执行通信。当进行初始设定或开始通信时，定时计算器基于来自第一天线的发送信号，计算从第一天线到终端的路径与从第二天线到终端的路径之间的差对应的时间差天线和通过具有从第二天线或通信对方（即终端）反射并且返回到第一天线的发射信号而提供的反射信号。基于这样计算的时间差，定时计算器输出用于调节从第一天线到可变延迟单元的发送数据的发送定时的信号。可变延迟单元根据定时调节信号延迟发送数据的发送定时，并将延迟的发送数据输出到调制器/解调器。

3. 发明授权

US07940841B2 Modulating circuit, transmitting apparatus using the same, receiving apparatus and communication system 有权
标题翻译：调制电路，使用该调制电路的发送装置，接收装置和通信系统
公开(公告)号：US07940841B2
公开(公告)日：2011-05-10
申请号：US11718570
申请日：2005-11-04
申请人： Masahiro Mimura , Kazuaki Takahashi , Suguru Fujita , Yoshinori Kunieda , Noriyuki Ueki
发明人： Masahiro Mimura , Kazuaki Takahashi , Suguru Fujita , Yoshinori Kunieda , Noriyuki Ueki
IPC分类号： H03K7/04
CPC分类号： H04B1/7174 , H03K7/04 , H04B1/71635 , H04B1/71637 , H04B1/7176 , H04L25/4902 , H04L27/0004
摘要： A communication system includes a modulating circuit to increase the amount of information to be transmitted, a transmitting apparatus capable of easily generating a desired waveform even for any very short wavelets, a receiving apparatus capable of easily separating wavelets even if the intervals thereof are narrow. The modulating circuit includes clock generating, transmission signal generating, control signal generating, delay and wavelet generating parts. The clock generating part generates a clock signal at predetermined time interval “Tp”. The transmission signal generating part generates a transmission signal at interval “Tp”. The control signal generating part outputs a control signal of a predetermined duration based on the clock signal. The delay part generates the control signal as a delay signal that has been delayed by a delay amount based on the transmission signal. The wavelet generating part generates a wavelet at the generation timing of the delay signal.
摘要翻译：一种通信系统包括：调制电路，用于增加要发送的信息量;即使对于任何非常短的小波也能够容易地产生期望的波形的发送装置，即使其间隔窄也能够容易地分离小波的接收装置。调制电路包括时钟产生，发送信号产生，控制信号产生，延迟和小波发生部分。时钟产生部分以预定时间间隔“Tp”产生时钟信号。发送信号生成部以间隔“Tp”生成发送信号。控制信号产生部分基于时钟信号输出预定持续时间的控制信号。延迟部分产生作为延迟信号的控制信号，该延迟信号已经基于发送信号被延迟延迟量。小波生成部在延迟信号的产生定时产生小波。

4. 发明申请

US20100166037A1 UWB TRANSMISSION APPARATUS AND UWB TRANSMISSION METHOD 有权
标题翻译： UWB传输设备和UWB传输方法
公开(公告)号：US20100166037A1
公开(公告)日：2010-07-01
申请号：US12377113
申请日：2007-10-10
申请人： Lei Soo Huang , Ping Luo , Suguru Fujita , Kazuaki Takahashi
发明人： Lei Soo Huang , Ping Luo , Suguru Fujita , Kazuaki Takahashi
IPC分类号： H04B1/69
CPC分类号： H04L27/0008 , H04B1/7176 , H04L27/02 , H04L27/18
摘要： A UWB transmission apparatus that, in a system using a mixture of amplitude and phase modulation schemes, can support both of the amplitude and phase modulation schemes, while preventing the signal powers of amplitude-modulated signals from degrading. In this UWB transmission apparatus, if the modulation mode is of QPSK, a mapping part (121) selects one of four signal points on the IQ plane in accordance with a 2-bit data, and outputs information related to the I- and Q-components of the selected signal point to a QPSK/ASK modulated signal forming part (122). If the modulation mode is of ASK, the mapping part (121) selects the origin point on the IQ plane when the data being ‘0’ and selects one of four signal points on the IQ plane, similarly to the case of QPSK modulation, when the data being ‘1,’ and outputs information, which is related to the selected signal point, to the QPSK/ASK modulated signal forming part (122).
摘要翻译：一种UWB传输装置，其在使用幅度和相位调制方案的混合的系统中可以支持幅度和相位调制方案两者，同时防止幅度调制信号的信号功率降级。在该UWB发送装置中，如果调制模式为QPSK，则映射部（121）根据2比特数据选择IQ平面上的四个信号点中的一个，并且输出与I和Q- 所选信号的分量指向QPSK / ASK调制信号形成部分（122）。如果调制方式为ASK，映射部分（121）在数据为“0”时选择IQ平面上的原点，并选择IQ平面上的四个信号点中的一个，类似于QPSK调制的情况，当数据为“1”，并将与所选信号点相关的信息输出到QPSK / ASK调制信号形成部分（122）。

5. 发明授权

US07706452B2 Reception device, transmission device, and radio system 有权
标题翻译：接收设备，传输设备和无线电系统
公开(公告)号：US07706452B2
公开(公告)日：2010-04-27
申请号：US10599378
申请日：2005-03-15
申请人： Suguru Fujita , Kazuaki Takahashi , Masahiro Mimura
发明人： Suguru Fujita , Kazuaki Takahashi , Masahiro Mimura
IPC分类号： H04L27/00
CPC分类号： H04B1/7174 , G01S13/931 , H04B1/71632 , H04B1/71637 , H04B1/719
摘要： A transmitter using a plurality of pulse signals having different pulse sequence times, a receiver for steadily demodulating pulse signals of only desirable wave, and a wireless system are disclosed. In the transmitter, a control signal generating circuit outputs a control signal for generating a plurality of pulse signals having different pulse sequence generating times, a pulse generating circuit generates a plurality of pulse signals by using the control signal. In the receiver, reception front end receives the plurality of pulse signals having different pulse sequence generating times, delay circuit delays at least one of reception front-end output signals supplied from the reception front-end by a given time, delay pulse composition circuit combines delay signal with reception front-end output signal, so that the receiver steadily demodulates the pulse signals of only the desirable wave.
摘要翻译：公开了使用具有不同脉冲序列时间的多个脉冲信号的发射机，用于稳定地解调仅期望波的脉冲信号的接收机和无线系统。在发送器中，控制信号发生电路输出用于产生具有不同脉冲序列产生时间的多个脉冲信号的控制信号，脉冲发生电路通过使用控制信号产生多个脉冲信号。在接收机中，接收前端接收具有不同脉冲序列产生时间的多个脉冲信号，延迟电路将从接收前端提供的接收前端输出信号中的至少一个延迟给定时间，延迟脉冲合成电路组合具有接收前端输出信号的延迟信号，使得接收机稳定地解调仅需要的波的脉冲信号。

6. 发明申请

US20090177954A1 CODE ERROR DETECTING DEVICE, WIRELESS SYSTEM AND CODE ERROR DETECTING METHOD 有权
标题翻译：代码错误检测设备，无线系统和代码错误检测方法
公开(公告)号：US20090177954A1
公开(公告)日：2009-07-09
申请号：US12305570
申请日：2007-06-20
申请人： Kazuaki Takahashi , Suguru Fujita , Michiaki Matsuo , Yutaka Murakami , Satoshi Hasako
发明人： Kazuaki Takahashi , Suguru Fujita , Michiaki Matsuo , Yutaka Murakami , Satoshi Hasako
IPC分类号： H03M13/09 , G06F11/10
CPC分类号： H04L27/06 , H04L1/0045 , H04L1/06 , H04L1/1812 , H04L1/1829 , H04L25/03171 , H04L25/067
摘要： A code error detecting device that can more precisely detect a code error due to a delayed wave is disclosed. The code error detecting device includes a receiving antenna (121) for receiving a on-off keying modulated pulse and its code-reversed pulse, a pulse detector (124) for outputting detected data in accordance with the pulses, a code comparing unit (128) for comparing each code of first received data (R1) with one of second received data (R2), wherein the first and second received data are derived from the output detected data, and an error detecting unit (129) for detecting an error of each code from a comparison result (D2) indicative of a result compared in the code comparing unit (128).
摘要翻译：公开了一种可以更精确地检测由于延迟波引起的码错误的码错误检测装置。代码错误检测装置包括用于接收开关键控调制脉冲及其代码反转脉冲的接收天线（121），用于根据脉冲输出检测数据的脉冲检测器（124），代码比较单元（128 ），用于将第一接收数据（R1）的每个代码与第二接收数据（R2）中的一个进行比较，其中从所述输出检测数据导出第一和第二接收数据;以及错误检测单元（129），用于检测来自代码比较单元（128）中比较结果的比较结果（D2）的每个代码。

7. 发明申请

US20090135974A1 IMPULSE WAVEFORM GENERATING APPARATUS AND RADIO-FREQUENCY PULSE WAVEFORM GENERATING APPARATUS 有权
标题翻译：脉冲波形发生装置和无线电频率波形波形发生装置
公开(公告)号：US20090135974A1
公开(公告)日：2009-05-28
申请号：US11909910
申请日：2006-03-29
申请人： Masahiro Mimura , Kazuaki Takahashi , Suguru Fujita
发明人： Masahiro Mimura , Kazuaki Takahashi , Suguru Fujita
IPC分类号： H04L7/00
CPC分类号： H03K7/02
摘要： An impulse waveform generating apparatus includes a multistage delay pulse signal generating part for generating a plurality of delay pulse signals by a timing signal; a signal source signal generating part for generating a signal source signal indicating the frequency component of an impulse waveform signal by the delay pulse signals; an envelope formation signal generating part for generating an envelope formation signal indicating the amplitude component of the impulse waveform signal by the delay pulse signals; and a mixer part for multiplying the signal source signal by the envelope formation signal to generate a prescribed impulse waveform signal. The impulse waveform generating apparatus generates the impulse waveform signal from the timing signal. Therefore, the circuit arrangement requires no digital-to-analog converter, the operational frequency of each element can be reduced, and the power consumption can be reduced.
摘要翻译：脉冲波形发生装置包括：多级延迟脉冲信号产生部分，用于通过定时信号产生多个延迟脉冲信号; 信号源信号产生部分，用于通过延迟脉冲信号产生指示脉冲波形信号的频率分量的信号源信号; 信封形成信号产生部分，用于通过延迟脉冲信号产生指示脉冲波形信号的振幅分量的包络信号; 以及混合器部分，用于将信号源信号乘以包络形成信号以产生规定的脉冲波形信号。脉冲波形生成装置根据定时信号生成脉冲波形信号。因此，该电路装置不需要数模转换器，可以降低各元件的工作频率，能够降低功耗。

8. 发明授权

US06407718B2 Dielectric resonator antenna for a mobile communication 失效
标题翻译：用于移动通信的介质谐振器天线
公开(公告)号：US06407718B2
公开(公告)日：2002-06-18
申请号：US09794339
申请日：2001-02-28
申请人： Naoki Adachi , Takashi Fukagawa , Suguru Fujita , Kenichi Maeda , Kazuaki Takahashi , Makoto Hasegawa , Morikazu Sagawa , Mitsuo Makimoto
发明人： Naoki Adachi , Takashi Fukagawa , Suguru Fujita , Kenichi Maeda , Kazuaki Takahashi , Makoto Hasegawa , Morikazu Sagawa , Mitsuo Makimoto
IPC分类号： H01Q138
CPC分类号： H01Q9/0485
摘要： A hemispherical dielectric resonator is arranged on a conductive substrate with a flat surface of the resonator in contact with the conductive substrate and fixed by a pair of fixing blocks. The dielectric resonator is fed with a signal feeder at a position at one side of the resonator such that intensity of the electric field is higher at that position. The fixing blocks contact a portion of the dielectric resonator where the intensity of the electric field is of a local minimum.
摘要翻译：半导体介质谐振器布置在导电衬底上，谐振器的平坦表面与导电衬底接触并由一对固定块固定。介质谐振器在谐振器一侧的位置处馈送有信号馈送器，使得该位置的电场强度较高。固定块与介质谐振器的一部分接触，其中电场的强度为局部最小值。

9. 发明授权

US09219307B2 Wireless communication device and method for displaying estimated direction and position of a target for wireless communication 有权
标题翻译：用于显示无线通信目标的估计方向和位置的无线通信装置和方法
公开(公告)号：US09219307B2
公开(公告)日：2015-12-22
申请号：US13876919
申请日：2011-09-27
申请人： Kazuaki Takahashi , Masayuki Orihashi , Suguru Fujita
发明人： Kazuaki Takahashi , Masayuki Orihashi , Suguru Fujita
IPC分类号： H01Q3/24 , G01S3/38 , H04B7/06 , G01S5/02 , G01S5/12 , H04W16/28
CPC分类号： H01Q3/24 , G01S3/38 , G01S5/0242 , G01S5/12 , H04B7/0617 , H04B7/0695 , H04W16/28
摘要： A wireless communication device transmits and receives a signal by a wireless communication using a millimeter wave frequency band. The wireless communication device includes an antenna section having directivities in a plurality of different directions, an antenna control section adapted to form a directivity in a prescribed direction among the plurality of directivities of the antenna section, a direction and position estimation section adapted to estimate direction and position information of a wireless communication device to be communicated with, which is a target for the wireless communication, in accordance with a receiving signal received by the antenna section having the directivity formed, and a display section adapted to display the estimated direction and position information of the wireless communication device to be communicated with.
摘要翻译：无线通信装置通过使用毫米波频带的无线通信发送和接收信号。所述无线通信装置包括具有多个不同方向的方向性的天线部，天线控制部，其适于在所述天线部的所述多个方向性中形成规定方向的方向性，适于估计方向的方向和位置估计部以及与作为无线通信目标的要通信的无线通信设备的位置信息，根据由具有指向性的天线部分接收到的接收信号，以及适于显示估计方向和位置的显示部分要通信的无线通信设备的信息。

10. 发明授权

US08509360B2 Pulse radio receiver 有权
标题翻译：脉冲无线电接收机
公开(公告)号：US08509360B2
公开(公告)日：2013-08-13
申请号：US12281883
申请日：2007-03-01
申请人： Suguru Fujita , Masahiro Mimura , Kazuaki Takahashi , Takenori Sakamoto
发明人： Suguru Fujita , Masahiro Mimura , Kazuaki Takahashi , Takenori Sakamoto
IPC分类号： H04L7/00
CPC分类号： H04L27/2278 , H04B1/7183 , H04L25/03006 , H04L2027/0038
摘要： A pulse radio receiving apparatus includes a reference waveform generation section that generates a reference waveform signal, a delay section that generates a plurality of delayed waveform signals by delaying the reference waveform signal by different amounts of delay, a correlation calculation section that generates a plurality of correlation value signals showing correlation values between a received signal, and the reference waveform signal and the delayed waveform signals, a determination section that compares predetermined combinations of the plurality of correlation value signals and generates a difference detection signal showing a direction and degree of a phase shift between the received signal and the reference waveform signal according to comparison results, and a synchronization control section that controls a phase of the reference waveform signal generated by the reference waveform signal generation section based on the difference detection signal.
摘要翻译：脉冲无线电接收装置包括产生参考波形信号的参考波形生成部分，延迟部分，通过延迟不同延迟量的参考波形信号产生多个延迟波形信号;相关计算部分，生成多个延迟波形信号; 表示接收信号和参考波形信号与延迟波形信号之间的相关值的相关值信号，比较多个相关值信号的预定组合的判定部，生成表示相位方向和程度的差分检测信号根据比较结果，在接收信号和参考波形信号之间进行移位，以及同步控制部，其基于差分检测信号来控制由基准波形信号生成部生成的基准波形信号的相位。

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