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1. 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。

2. 发明申请

US20090074117A1 Pulse Radio Receiver 有权
标题翻译：脉冲无线电接收机
公开(公告)号：US20090074117A1
公开(公告)日：2009-03-19
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： H04L27/06
CPC分类号： H04L27/2278 , H04B1/7183 , H04L25/03006 , H04L2027/0038
摘要： A pulse radio receiver not needing re-setting of the threshold for reception synchronization, judging the direction and amount of adjustment of the synchronization even if the signal strength varies, and having a shortened pull-in time of the synchronization position. The receiver comprises a detect (104) for creating a detection signal (105), a synchronizing waveform generating section (160) for generating a reference waveform signal (111), a delay section (161) for generating delayed waveform signals by delaying the reference waveform signal (111) with different delay times, a correlation computing section (162) for parallel generating correlation value signals representing the correlation values between the detection signal (105), and the reference waveform signal (111) and its delayed reference waveform signals, a judging section (163) for generating a difference detection signal (141) representing the direction and amount of the phase error from the magnitude relation corresponding to the combination of the correlation values represented by the correlation value signals, and a synchronization control section (142) for generating a control signal (143) for controlling the phase of the reference waveform signal (111) according to the difference detection signal (141) and outputting the control signal (143) into the synchronizing waveform generating section (160).
摘要翻译：脉冲无线电接收机不需要重新设置接收同步的阈值，即使信号强度变化，判断同步调整的方向和量，并且具有缩短的同步位置的吸入时间。接收机包括用于产生检测信号（105）的检测（104），用于产生参考波形信号（111）的同步波形发生部分（160），用于通过延迟基准来产生延迟波形信号的延迟部分（161）具有不同延迟时间的波形信号（111），用于并行产生表示检测信号（105）与参考波形信号（111）之间的相关值的相关值信号及其延迟的参考波形信号的相关运算部分（162）用于根据由相关值信号表示的相关值的组合对应的幅度关系产生表示相位误差的方向和量的差异检测信号（141）的判断部分（163），以及同步控制部分），用于产生用于根据差值d控制参考波形信号（111）的相位的控制信号（143）检测信号（141），并将控制信号（143）输出到同步波形生成部（160）中。

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。

5. 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。

6. 发明授权

US08254437B2 Transmitting apparatus, receiving apparatus and communication system 有权
标题翻译：发射装置，接收装置和通信系统
公开(公告)号：US08254437B2
公开(公告)日：2012-08-28
申请号：US11908862
申请日：2006-03-09
申请人： Suguru Fujita , Masahiro Mimura , Kazuaki Takahashi , Yoshinori Kunieda , Noriyuki Ueki
发明人： Suguru Fujita , Masahiro Mimura , Kazuaki Takahashi , Yoshinori Kunieda , Noriyuki Ueki
IPC分类号： H03K7/04 , H03K7/06 , H03K9/04 , H03K9/06
CPC分类号： H04B1/7174 , H04L25/4902 , H04L27/02
摘要： A transmitting apparatus, receiving apparatus and communication system are disclosed, and great improvement in an S/N ratio, preventing an actual throughput from decreasing, and preventing the number of circuits for synchronizing spread spectrum signals from increasing can be expected at the receiving apparatus side. The transmitting apparatus includes a pulse generating circuit, pulse repetition cycle determining circuit, peak power determining circuit, and modulator. The pulse generating circuit generates pulse strings, pulse repetition cycle determining circuit determines, based on a clock signal, a pulse repetition cycle of the pulse string generated by the pulse generating circuit. The peak power determining circuit determines a pulse peak power of the pulse string. The modulator modulates the pulse string with transmission data, and then generates a transmission signal.
摘要翻译：公开了一种发送装置，接收装置和通信系统，可以期望在接收装置侧，可以预期S / N比的大幅度改善，防止实际吞吐量降低，并且防止扩展频谱信号同步化的电路数量增加。发送装置包括脉冲发生电路，脉冲重复周期确定电路，峰值功率确定电路和调制器。脉冲发生电路产生脉冲串，脉冲重复周期确定电路基于时钟信号确定由脉冲发生电路产生的脉冲串的脉冲重复周期。峰值功率确定电路确定脉冲串的脉冲峰值功率。调制器用传输数据调制脉冲串，然后产生一个传输信号。

7. 发明授权

US08204146B2 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射频脉波波形发生装置
公开(公告)号：US08204146B2
公开(公告)日：2012-06-19
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

US07822159B2 Master side communication apparatus and slave side communication apparatus 有权
标题翻译：主机通信装置和从机侧通信装置
公开(公告)号：US07822159B2
公开(公告)日：2010-10-26
申请号：US11568705
申请日：2006-03-01
申请人： Suguru Fujita , Masahiro Mimura , Kazuaki Takahashi , Yoshinori Kunieda , Noriyuki Ueki
发明人： Suguru Fujita , Masahiro Mimura , Kazuaki Takahashi , Yoshinori Kunieda , Noriyuki Ueki
IPC分类号： H04L7/00
CPC分类号： H04L7/0091 , H04B1/40 , H04B1/7183 , H04L25/4902
摘要： A master side communication apparatus and a slave side communication apparatus wherein the structure of a receiving part of the slave side communication apparatus is simplified to achieve a reduced size, a reduced power consumption and a reduced cost. The master side communication apparatus performs a communication in synchronism with the slave side communication apparatus having no synchronization timing adjusting function. A transport signal generating timing adjusting part of the master side communication apparatus acquires, from the slave side communication apparatus, synchronization signal generation timing information used when the slave side communication apparatus receives the transport signal from the master side communication apparatus. The transport signal generating timing adjusting part varies and adjusts, based on the acquired information, the transmission timing of the signal to be transmitted to the slave side communication apparatus. A transmitting part transmits the transport signal at the adjust transmission timing. The occurrence timing of the transport signal is varied and adjusted until the slave side communication apparatus becomes able to receive the transport signal from the master side communication apparatus.
摘要翻译：主侧通信装置和从侧通信装置，其中简化从侧通信装置的接收部分的结构以实现减小的尺寸，降低的功耗和降低的成本。主机侧通信装置与没有同步定时调整功能的从侧通信装置同步进行通信。主方通信装置的传输信号产生定时调整部分从从机通信装置获取当从侧通信装置从主机侧通信装置接收传输信号时使用的同步信号产生定时信息。传输信号产生定时调整部分根据所获取的信息改变和调整要传送到从属通信设备的信号的发送定时。发送部在调整发送定时发送发送信号。传输信号的发生定时被改变和调整直到从属通信装置变得能够从主机侧通信装置接收传输信号。

9. 发明授权

US07366235B2 UWB demodulating apparatus 有权
标题翻译： UWB解调装置
公开(公告)号：US07366235B2
公开(公告)日：2008-04-29
申请号：US10855691
申请日：2004-05-27
申请人： Masahiro Mimura , Kazuaki Takahashi , Suguru Fujita
发明人： Masahiro Mimura , Kazuaki Takahashi , Suguru Fujita
IPC分类号： H03K9/04
CPC分类号： H04B1/71637 , H04B1/7183 , H04L25/4902
摘要： A demodulated signal is to be generated by use of a first detection signal detected a presence/absence of a signal according to a correlation between a reception signal PPM-modulated at a pulse interval of T and a pulse variation width of τ and the reception signal delayed with a time (T+τ), a second detection signal detected a presence/absence of a signal according to a correlation between the reception signal and the reception signal delayed with a time (T), and a third detection signal detected a presence/absence of a signal according to a correlation between the reception signal and the reception signal delayed with a time (T−τ). By thus combining a plurality of delayed detections, it is possible to obtain a UWB demodulating apparatus configured with a circuit suited for integrated circuit fabrication.
摘要翻译：通过使用根据以T的脉冲间隔调制的接收信号PPM和τ的脉冲变化宽度与接收信号之间的相关性的检测信号的存在/不存在的第一检测信号来产生解调信号延迟时间（T +τ），第二检测信号根据接收信号与以时间（T）延迟的接收信号之间的相关性检测信号的存在/不存在，并且第三检测信号检测到存在 /根据接收信号与以时间（T-τ）延迟的接收信号之间的相关性，不存在信号。通过组合多个延迟的检测，可以获得配置有适于集成电路制造的电路的UWB解调装置。

10. 发明申请

US20070087715A1 IMPULSE WAVEFORM GENERATING APPARATUS 有权
标题翻译： IMPULSE WAVEFORM生成装置
公开(公告)号：US20070087715A1
公开(公告)日：2007-04-19
申请号：US11566412
申请日：2006-12-04
申请人： Masahiro Mimura , Suguru Fujita , Kazuaki Takahashi
发明人： Masahiro Mimura , Suguru Fujita , Kazuaki Takahashi
IPC分类号： H04B1/40 , H04B1/06
CPC分类号： H04B1/7174 , H04B1/7172
摘要： An impulse waveform generating apparatus comprises an oscillator for generating a reference signal having a center frequency in a frequency band of an impulse to generate, a timing matching circuit for shifting a phase of the reference signal by 90 degrees, a frequency demultiplier for dividing a frequency of the phase shift signal and obtaining a timing signal having a frequency component having a frequency width of an impulse to generate, a memory storing a waveform shape table, a waveform forming section for forming a waveform in synchronism with the timing signal, according to information of a shape table having a predetermined waveform, a low-pass filter for obtaining an envelope signal from an output signal of the waveform forming section, and a waveform generating section for changing an amplitude of the reference signal according to a value of the envelope signal.
摘要翻译：脉冲波形生成装置包括：振荡器，用于产生具有脉冲频带的中心频率的基准信号，生成用于使参考信号的相位偏移90度的定时匹配电路，用于分频频率的分频器并获得具有产生脉冲频率的频率分量的定时信号，存储波形形状表的存储器，与定时信号同步地形成波形的波形形成部，根据信息具有预定波形的形状表，用于从波形形成部分的输出信号获得包络信号的低通滤波器和用于根据包络信号的值改变参考信号的幅度的波形产生部分。

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