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11. 发明授权

US5555247A Frame synchronizing apparatus for quadrature modulation data communication radio receiver 失效
公开(公告)号：US5555247A
公开(公告)日：1996-09-10
申请号：US515607
申请日：1995-08-16
申请人： Akihiko Matsuoka , Hiroshi Ohnishi , Yoshinori Kunieda , Kouei Misaizu , Yuuri Yamamoto
发明人： Akihiko Matsuoka , Hiroshi Ohnishi , Yoshinori Kunieda , Kouei Misaizu , Yuuri Yamamoto
IPC分类号： H03L7/085 , H04J3/06 , H04L7/033 , H04L7/04 , H04L7/08
CPC分类号： H04L7/042 , H03L7/085 , H04J3/06 , H04L7/0331 , H04L7/08
摘要： In a frame synchronizing apparatus for a receiver apparatus of a digital data radio communications system in which data are transmitted in frame periods with a fixed data sequence contained each frame, a data correlation circuit obtains successive sequences of values of vector difference between vector values constituting a demodulated digital baseband signal, and successively compares these sequences with a fixed vector difference sequence corresponding to the fixed data sequence, to derive a correlation signal substantially unaffected by any phase rotation in the baseband signal. A frame synchronizing circuit formed as a PLL for generating a frame synchronizing signal, includes a phase comparator which periodically indicates whether a detected phase difference between the correlation signal and frame synchronizing signal is effectively zero, positive or negative, and a counter holding a count value indicating a cumulative phase error between these signals. So long as the detected phase differences are successively effectively zero and the cumulative phase error is sufficiently small, the phase of the frame synchronizing signal is held unchanged, thereby achieving a high degree of phase stability.

12. 发明申请

US20120281740A1 TRANSMITTING APPARATUS, RECEIVING APPARATUS AND COMMUNICATION SYSTEM 审中-公开
标题翻译：发送装置，接收装置和通信系统
公开(公告)号：US20120281740A1
公开(公告)日：2012-11-08
申请号：US13552055
申请日：2012-07-18
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： H04L27/00 , H04B1/38
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。

13. 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。

14. 发明申请

US20100183102A1 RADIO COMMUNICATION DEVICE AND RADIO COMMUNICATION METHOD 有权
标题翻译：无线电通信设备和无线电通信方法
公开(公告)号：US20100183102A1
公开(公告)日：2010-07-22
申请号：US12667579
申请日：2008-07-03
申请人： Hirohito Mukai , Hldekuni Yomo , Kiyotaka Kobayashi , Yoshinori Kunieda
发明人： Hirohito Mukai , Hldekuni Yomo , Kiyotaka Kobayashi , Yoshinori Kunieda
IPC分类号： H04B1/10 , H04L27/06
CPC分类号： H04L1/0048 , H04L1/0025 , H04L1/005 , H04L1/06 , H04L25/0204 , H04L25/0224 , H04L25/03006 , H04L25/03171
摘要： A radio receiver which performs iterative decoding of a received signal is provided. The radio receiver comprises: a receiving unit receiving a signal on a symbol-by-symbol basis; a demodulation unit (303) demodulating the received signal; a last symbol timing generation unit (308) generating a last symbol timing signal on the basis of the signal demodulated by the demodulation unit (303); a modulation unit (304) modulating the signal demodulated by the demodulation unit (303); and a cancellation unit (306) cancelling an interference component of the received signal using a replica signal generated on the basis of the signal modulated by the modulation unit (304). The modulation unit (304) controls the timing of rearrangement of a data sequence on the basis of the timing of the last symbol. Thus, a radio receiver in which the receiving processing time is reduced can be provided.
摘要翻译：提供对接收信号执行迭代解码的无线电接收机。无线电接收机包括：接收单元，以符号为单位接收信号; 解调单元（303），对接收到的信号进行解调; 最后符号定时生成单元，基于由解调单元解调的信号生成最后的符号定时信号; 调制单元（304），调制由解调单元（303）解调的信号; 以及消除单元（306），使用基于由调制单元（304）调制的信号生成的复制信号来消除接收信号的干扰分量。调制单元（304）基于最后一个符号的定时来控制数据序列的重排的定时。因此，可以提供其中接收处理时间减少的无线电接收机。

15. 发明授权

US06593805B2 Demodulation apparatus 失效
公开(公告)号：US06593805B2
公开(公告)日：2003-07-15
申请号：US09852240
申请日：2001-05-09
申请人： Yoshinori Kunieda , Kazuo Tomita , Hidekuni Yomo
发明人： Yoshinori Kunieda , Kazuo Tomita , Hidekuni Yomo
IPC分类号： H03D300
CPC分类号： H04L7/0029
摘要： A demodulation apparatus of the present invention comprises: an A/D converter for sampling and quantizing a baseband signal; a transversal filter having time-shifted tap coefficients; a decision unit for decoding the signal which has undergone the transversal filter; and a decision point estimation unit for instructing the transversal filter to select the tap coefficient to be selected based on information from the decision unit. Thus, the demodulation apparatus can operate at the same frequency as a sampling frequency of the A/D converter and can perform decision with accuracy equivalent to an arbitrary oversampling number.

16. 发明授权

US5550867A Complex angle converter 失效
标题翻译：复角转换器
公开(公告)号：US5550867A
公开(公告)日：1996-08-27
申请号：US417528
申请日：1995-04-06
申请人： Yuuri Yamamoto , Kenichi Takahashi , Hiroshi Ohnishi , Yoshinori Kunieda , Naoki Matsubara
发明人： Yuuri Yamamoto , Kenichi Takahashi , Hiroshi Ohnishi , Yoshinori Kunieda , Naoki Matsubara
IPC分类号： H04L7/033 , H04L27/233 , H04L27/06
CPC分类号： H04L7/0334 , H04L27/2332
摘要： A complex angle converter includes a comparing device. The comparing device operates to derive first difference data representing a difference between predetermined reference data and data represented by a first baseband signal. The comparing device further operates to derive second difference data representing a difference between the predetermined reference data and data represented by a second baseband signal having a quadrature relation with the first baseband signal. The comparing device further operates for comparing absolute values of the first difference data and the second difference data, and for outputting a signal representative of a result of the comparing. The complex angle converter also includes a device serving to group an inversion of a highest bit of the first baseband signal and second highest and lower bits of the second baseband signal into a first set. An additional device serves to group a highest bit of the second baseband signal and second highest and lower bits of the first baseband signal into a second set. A selector operates to select one of the first set and the second set in response to the output signal of the comparing device. A decoder is included for decoding the highest bit of the first baseband signal, the highest bit of the second baseband signal, and the selected one of the first set and the second set into data representing a complex angle.
摘要翻译：复角度转换器包括比较装置。比较装置用于导出表示预定参考数据和由第一基带信号表示的数据之间的差异的第一差分数据。比较装置进一步操作以得出表示预定参考数据与由与第一基带信号具有正交关系的第二基带信号表示的数据之间的差异的第二差分数据。比较装置还用于比较第一差分数据和第二差分数据的绝对值，并输出表示比较结果的信号。复角转换器还包括用于将第一基带信号的最高位和第二基带信号的第二高位和低位的反转分组为第一组的装置。附加设备用于将第二基带信号的最高位和第一基带信号的第二高位和低位分组成第二组。选择器响应于比较装置的输出信号选择第一组和第二组中的一个。包括解码器，用于将第一基带信号的最高位，第二基带信号的最高位和第一组和第二组中选定的一个译码成表示复角的数据。

17. 发明授权

US07881400B2 Pulse modulation type transmitter apparatus and pulse modulation type receiver apparatus 失效
标题翻译：脉冲调制型发送装置和脉冲调制型接收装置
公开(公告)号：US07881400B2
公开(公告)日：2011-02-01
申请号：US11914281
申请日：2006-05-08
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： H04L27/00
CPC分类号： H04J3/0605 , H04B1/7183 , H04L25/4902
摘要： A pulse modulation type transmitter apparatus and a pulse modulation type receiver apparatus wherein both a fast synchronization establishment and a low power consumption of a synchronizing part can be achieved at the same time and wherein the data transmission/reception can be performed soon after a commencement of communication, and further a fast data transmission and a low power consumption can be achieved. A first template signal (1006), which is generated based on a separately transmitted RF frame synchronization signal (1005), is used to generate a frame synchronization signal (1009), and a second frame synchronization timing adjusting part (150) is used to synchronize the frame synchronization signal (1009) with a received RF data signal (1004). Then, a synchronization detection is performed, whereby a prompt pulse acquisition and a prompt pulse phase acquisition can be achieved. After the establishment of frame synchronization, a template switching part (142) is used to switch from the first template signal (1006) to a second template signal (1007) that has been already synchronized with the first template signal (1006). Then, a synchronization detection is performed, whereby the frame synchronization can be maintained.
摘要翻译：一种脉冲调制型发送装置和脉冲调制型接收装置，其特征在于可以同时实现同步部分的快速同步建立和低功耗，其中数据发送/接收可以在开始后立即执行通信，进一步实现快速数据传输和低功耗。使用基于单独发送的RF帧同步信号（1005）生成的第一模板信号（1006）来生成帧同步信号（1009），并且使用第二帧同步定时调整部（150）使帧同步信号（1009）与接收的RF数据信号（1004）同步。然后，执行同步检测，从而可以实现提示脉冲获取和提示脉冲相位采集。在帧同步建立之后，使用模板切换部分（142）从第一模板信号（1006）切换到已经与第一模板信号（1006）同步的第二模板信号（1007）。然后，进行同步检测，由此能够维持帧同步。

18. 发明申请

US20090041169A1 PULSE MODULATION TYPE TRANSMITTER APPARATUS AND PULSE MODULATION TYPE RECEIVER APPARATUS 失效
标题翻译：脉冲调制型发射器装置和脉冲调制型接收器装置
公开(公告)号：US20090041169A1
公开(公告)日：2009-02-12
申请号：US11914281
申请日：2006-05-08
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： H04J3/0605 , H04B1/7183 , H04L25/4902
摘要： A pulse modulation type transmitter apparatus and a pulse modulation type receiver apparatus wherein both a fast synchronization establishment and a low power consumption of a synchronizing part can be achieved at the same time and wherein the data transmission/reception can be performed soon after a commencement of communication, and further a fast data transmission and a low power consumption can be achieved. A first template signal (1006), which is generated based on a separately transmitted RF frame synchronization signal (1005), is used to generate a frame synchronization signal (1009), and a second frame synchronization timing adjusting part (150) is used to synchronize the frame synchronization signal (1009) with a received RF data signal (1004). Then, a synchronization detection is performed, whereby a prompt pulse acquisition and a prompt pulse phase acquisition can be achieved. After the establishment of frame synchronization, a template switching part (142) is used to switch from the first template signal (1006) to a second template signal (1007) that has been already synchronized with the first template signal (1006). Then, a synchronization detection is performed, whereby the frame synchronization can be maintained.
摘要翻译：一种脉冲调制型发送装置和脉冲调制型接收装置，其特征在于可以同时实现同步部分的快速同步建立和低功耗，其中数据发送/接收可以在开始后立即执行通信，进一步实现快速数据传输和低功耗。使用基于单独发送的RF帧同步信号（1005）生成的第一模板信号（1006）来生成帧同步信号（1009），并且使用第二帧同步定时调整部（150）使帧同步信号（1009）与接收的RF数据信号（1004）同步。然后，执行同步检测，从而可以实现提示脉冲获取和提示脉冲相位采集。在帧同步建立之后，使用模板切换部分（142）从第一模板信号（1006）切换到已经与第一模板信号（1006）同步的第二模板信号（1007）。然后，进行同步检测，由此能够维持帧同步。

19. 发明申请

US20080292037A1 Master Side Communication Apparatus and Slave Side Communication Apparatus 有权
标题翻译：主站通信设备和从站通信设备
公开(公告)号：US20080292037A1
公开(公告)日：2008-11-27
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。

20. 发明申请

US20070276892A1 FINITE IMPULSE RESPONSE FILTER AND DIGITAL SIGNAL RECEIVING APPARATUS 有权
标题翻译：有限冲突响应滤波器和数字信号接收装置
公开(公告)号：US20070276892A1
公开(公告)日：2007-11-29
申请号：US11833030
申请日：2007-08-02
申请人： Hidekuni YOMO , Yoshinori KUNIEDA , Yuuri YAMAMOTO
发明人： Hidekuni YOMO , Yoshinori KUNIEDA , Yuuri YAMAMOTO
IPC分类号： G06F17/10
CPC分类号： H03H17/0657 , H03H17/0223 , H03H17/0229 , H03H17/06 , H03H17/0621 , H03H2218/085
摘要： An A/D conversion section performs oversampling on an analog signal at a rate M times a symbol rate to convert the analog signal into a digital signal. A FIR filtering section has two delay-element sequences, each with a plurality of delay elements. The two delay-element sequences have different delay directions, i.e., a forward direction and a reverse direction. The delay directions can be switched, and according to a finite impulse response train having such delay-element sequences, a convolutional calculation is performed. A phase determining section determines a phase used in making a decision in a decision section. The decision section makes a decision on a filtered signal using the phase determined in the phase determining section to generate bit data. A digital signal receiving apparatus is thus achieved which determines a phase with a high accuracy without increasing the oversampling number, and performs a fast calculation while having a reduced circuitry scale.
摘要翻译： A / D转换部分以符号速率M倍的模拟信号执行过采样，以将模拟信号转换为数字信号。 FIR滤波部分具有两个具有多个延迟元件的延迟元件序列。两个延迟元件序列具有不同的延迟方向，即正向和反向。可以切换延迟方向，并且根据具有这种延迟元件序列的有限脉冲响应列，进行卷积计算。相位确定部确定在判定部中作出判定所使用的相位。决定部分使用在相位确定部分中确定的相位来对滤波信号做出决定以产生位数据。因此，实现了数字信号接收装置，其在不增加过采样数量的情况下确定高精度的相位，并且在具有减小的电路规模的情况下执行快速计算。

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