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1. 发明授权

US4860316A Multilevel amplitude modulation and demodulation communication system 失效
标题翻译：多电平幅度调制和解调通信系统
公开(公告)号：US4860316A
公开(公告)日：1989-08-22
申请号：US156755
申请日：1988-02-18
申请人： Sadao Takenaka , Yoshihito Aono , Takanori Iwamatsu , Morihiko Minowa , Yoshimasa Daido , Hiroshi Nakamura
发明人： Sadao Takenaka , Yoshihito Aono , Takanori Iwamatsu , Morihiko Minowa , Yoshimasa Daido , Hiroshi Nakamura
IPC分类号： H04L27/34
CPC分类号： H04L27/3411
摘要： A digital communication system using a QAM signal and a honeycomb constellation multilevel signal. The digital communication system includes a modulator having a unit for transforming in-phase and quadrature-phase data arranged in a quadrature lattice constellation into two data arranged in a honeycomb constellation, and a unit for amplitude-modulating the transformed data. A demodulator demodulates a transmitted signal output from the modulator.

2. 发明授权

US5005186A Digital demodulator apparatus 失效
标题翻译：数字解调器装置
公开(公告)号：US5005186A
公开(公告)日：1991-04-02
申请号：US265459
申请日：1988-10-13
申请人： Yoshihito Aono , Takanori Iwamatsu , Morihiko Minowa , Sadao Takenaka , Yoshimasa Daidoh , Hiroshi Nakamura , Nobutsugu Fujino
发明人： Yoshihito Aono , Takanori Iwamatsu , Morihiko Minowa , Sadao Takenaka , Yoshimasa Daidoh , Hiroshi Nakamura , Nobutsugu Fujino
IPC分类号： H04L27/34 , H04L27/38
CPC分类号： H04L27/38
摘要： A digital demodulation apparatus which has a detector (11) for receiving transmission signals (S.sub.in) modulated under a multivalue quadrature amplitude modulation method in accordance with a honeycomb signal structure point arrangement. The detector produces I channel and Q channel demodulation signals. The apparatus also includes a discriminator (13) which converts the analog demodulation signals (Sa) to digital demodulation signals (Sd), a memory (21) which successively receives said digital demodulation signals (Sd) and reproduces corresponding original data. The read only memory (21) stores data representatives of the honeycomb signal structure point arrangement, and stores polarity bits (P) and error bits (.epsilon.) of the signal points.
摘要翻译： PCT No.PCT / JP88 / 00280 Sec。 371日期：1988年10月13日 102（e）日期1988年10月13日PCT提交1988年3月17日PCT公布。第WO88 / 07302号公报日期：1988年9月22日。一种数字解调装置，具有用于接收根据蜂窝信号结构点布置在多值正交幅度调制方法下调制的传输信号（Sin）的检测器（11）。检测器产生I通道和Q通道解调信号。该装置还包括将模拟解调信号（Sa）转换为数字解调信号（Sd）的鉴频器（13），连续接收所述数字解调信号（Sd）并再现对应的原始数据的存储器（21）。只读存储器（21）存储蜂窝信号结构点布置的数据代表，并存储信号点的极性位（P）和误差位（ε）。

3. 发明授权

US4912726A Decision timing control circuit 失效
标题翻译：决策定时控制电路
公开(公告)号：US4912726A
公开(公告)日：1990-03-27
申请号：US247444
申请日：1988-08-31
申请人： Takanori Iwamatsu , Yoshihito Aono , Morihiko Minowa , Sadao Takenaka
发明人： Takanori Iwamatsu , Yoshihito Aono , Morihiko Minowa , Sadao Takenaka
IPC分类号： H04L7/02 , H04L7/033
CPC分类号： H04L7/0062 , H04L7/0334
摘要： The present invention relates to a circuit which controls the decision timing for deciding multi-level signal to the optimum decision timing. The control is carried out in such a manner as reducing deviation of phase of decision clock by deciding slope of multi-level signal at the center decision timing from the decision data at least continuous three decision timings and deciding deviation of decision timing from the slope and error signal at the center decision timing. Moreover, two kinds of slope decision are realized and the desired slope decision can be selected in accordance with the line condition.
摘要翻译： PCT No.PCT / JP88 / 00013 Sec。 371日期1988年8月31日 102（e）日期1988年8月31日PCT提交1988年1月8日PCT公布。出版物WO88 / 05235 日期：1988年7月14日。本发明涉及一种电路，其控制用于将多电平信号判定为最佳判定定时的判定定时。以至少连续的三个决定定时从决策数据决定中心判定时刻的多电平信号的斜率，决定判定时钟偏离斜率的判定时间的偏差，中心决策时刻的误差信号。此外，实现了两种斜率决定，并且可以根据线路条件选择期望的斜率决定。

4. 发明授权

US4809298A Radio data transmission system 失效
标题翻译：无线数据传输系统
公开(公告)号：US4809298A
公开(公告)日：1989-02-28
申请号：US53396
申请日：1987-04-30
申请人： Toshiaki Sakane , Sadao Takenaka , Morihiko Minowa , Yoshihito Aono , Yoshimasa Daidoh
发明人： Toshiaki Sakane , Sadao Takenaka , Morihiko Minowa , Yoshihito Aono , Yoshimasa Daidoh
IPC分类号： H04B7/005 , H04L25/03 , H04L25/49
CPC分类号： H04B7/005 , H04L25/03038
摘要： The present invention relates to a radio transmission system. The system includes a transversal type automatic equalizer which controls tap weight based on bit error rate (BER) from a pseudo error pulse. In the equalizer, the threshold value (BER1) which defines the mode change for tap weighting control from normal to reset is different from the threshold value (BER2) from reset to normal. Therefore, the mode change is carried out by a simple circuit properly and stably.
摘要翻译： PCT No.PCT / JP86 / 00437 Sec。 371日期1987年4月30日 102（e）1987年4月30日PCT PCT日期：1986年8月27日PCT公布。第WO87 / 01535号公报 1987年3月12日发布。无线传输系统技术领域本发明涉及一种无线传输系统。该系统包括横向型自动均衡器，其基于来自伪误差脉冲的误码率（BER）来控制抽头重量。在均衡器中，定义从正常到复位的分接加权控制的模式改变的阈值（BER1）不同于从复位到正常的阈值（BER2）。因此，通过简单的电路正确稳定地进行模式切换。

5. 发明授权

US07366228B2 Synchronization detecting apparatus 有权
标题翻译：同步检测装置
公开(公告)号：US07366228B2
公开(公告)日：2008-04-29
申请号：US09918964
申请日：2001-07-31
申请人： Morihiko Minowa , Dai Kimura , Noriyuki Kawaguchi
发明人： Morihiko Minowa , Dai Kimura , Noriyuki Kawaguchi
IPC分类号： H04B1/00
CPC分类号： H04B1/7075 , H04B2201/70701 , H04L25/0232
摘要： In a channel estimating circuit, a Sync Word is demodulated by using a channel estimation value not with a symbol or a slot including the Sync Word to be demodulated, but with its preceding and succeeding symbols or slots. Furthermore, in a channel estimation process, if a Synch Word to be demodulated is included in any of groups into which a plurality of symbols are divided, the Sync Word is demodulated by using a channel estimation value obtained with the channel estimation process using not this group but another group.
摘要翻译：在信道估计电路中，通过使用不具有符号的信道估计值或包括要解调的同步字，但具有其前和后符号或时隙的信道估计值来解调同步字。此外，在信道估计处理中，如果要解调的同步字被包括在划分多个符号的组中的任一组中，则使用不是使用信道估计处理获得的信道估计值来解调同步字小组，但另一组。

6. 发明申请

US20060007904A1 Apparatus and method for fading frequency estimation 有权
公开(公告)号：US20060007904A1
公开(公告)日：2006-01-12
申请号：US10988411
申请日：2004-11-12
申请人： Tsuyoshi Shimomura , Dai Kimura , Tetsuhiro Futami , Morihiko Minowa
发明人： Tsuyoshi Shimomura , Dai Kimura , Tetsuhiro Futami , Morihiko Minowa
IPC分类号： H04B7/216
CPC分类号： H04L25/0202 , H04B2201/70701 , H04L25/0222
摘要： The invention relates to an apparatus and a method for estimating a fading frequency of incoming received waves in a receiving station of a radio communication system or radio transmission system. An object of the invention is to estimate a fading frequency efficiently and accurately without substantially complexing the configuration of the system. To this end, the invention provides an apparatus for estimating a fading frequency from a pilot signal in a reception signal, which includes a calculation unit for calculating a magnitude of a complex product of two symbols that are received at different instants, and an estimation unit for estimating a fading frequency according to the calculated magnitude of the complex product.

7. 发明授权

US06754256B1 Searcher for CDMA receiver apparatus 有权
标题翻译： CDMA接收机设备的搜索者
公开(公告)号：US06754256B1
公开(公告)日：2004-06-22
申请号：US09387675
申请日：1999-08-31
申请人： Tokuro Kubo , Morihiko Minowa , Kensuke Sawada , Noriyuki Kawaguchi , Koji Matsuyama , Yoshihiko Asano
发明人： Tokuro Kubo , Morihiko Minowa , Kensuke Sawada , Noriyuki Kawaguchi , Koji Matsuyama , Yoshihiko Asano
IPC分类号： H04B169
CPC分类号： H04B1/7075 , H04B1/70755 , H04B1/709
摘要： A searcher for a CDMA receiver apparatus includes a correlator obtaining a correlation value between a spreading code sequence and a spreading code sequence within a received signal, and a non-linear processor carrying out a non-linear conversion to convert one of the correlation value and a predetermined value indicative of the correlation value into correlation value information which has a data width smaller than that of the one of the correlation value and the predetermined value. The correlation value information is used to carry out a search process to search for a synchronizing timing with respect to the spreading code sequence within the received signal.
摘要翻译：用于CDMA接收机装置的搜索器包括获得接收信号内的扩展码序列和扩展码序列之间的相关值的相关器，以及执行非线性转换的非线性处理器，以将相关值和将相关值指示为相关值信息的预定值，该相关值信息的数据宽度小于相关值和预定值之一的数据宽度。相关值信息用于执行搜索处理，以搜索关于接收信号内的扩展码序列的同步定时。

8. 发明授权

US07145938B2 Apparatus producing continuous stream of correlation values 有权
标题翻译：产生连续流相关值的装置
公开(公告)号：US07145938B2
公开(公告)日：2006-12-05
申请号：US09734856
申请日：2000-12-12
申请人： Masatsugu Takeuchi , Morihiko Minowa , Noriyuki Kawaguchi
发明人： Masatsugu Takeuchi , Morihiko Minowa , Noriyuki Kawaguchi
IPC分类号： H04B1/69 , H04B1/707
CPC分类号： H04B1/708 , H04B1/7075 , H04B1/7117 , H04B2201/70707
摘要： An apparatus includes a plurality of received-signal registers which receive and store therein a plurality of respective received-signal sequences, a selector which selects one of the received signal sequences stored in the received-signal registers, at least one code register which stores therein a de-spreading-code sequence, a multiplication circuit which multiplies the selected one of the received-signal sequences by the de-spreading-code sequence, and a summation circuit which obtains a sum of results of the multiplication to obtain a correlation between the selected one of the received-signal sequences and the de-spreading-code sequence.
摘要翻译：一种装置包括多个接收信号寄存器，其中接收和存储多个相应的接收信号序列，选择器选择存储在接收信号寄存器中的接收信号序列中的一个，存储在其中的至少一个码寄存器去扩展码序列，乘法电路，其通过去扩展码序列将所选择的一个接收信号序列相乘，以及求和电路，其获得乘法结果的和以获得所述解扩展码序列之间的相关性选择的一个接收信号序列和解扩展码序列。

9. 发明申请

US20060068790A1 Wireless base station device and path search method 审中-公开
标题翻译：无线基站设备和路径搜索方法
公开(公告)号：US20060068790A1
公开(公告)日：2006-03-30
申请号：US11064855
申请日：2005-02-25
申请人： Toshiro Sawamoto , Morihiko Minowa
发明人： Toshiro Sawamoto , Morihiko Minowa
IPC分类号： H04Q7/20
CPC分类号： H04B1/7113 , H04B1/7117 , H04W36/0083 , H04W36/08 , H04W36/32 , H04W56/00 , H04W56/0005
摘要： In a wireless base station device that communicates with a mobile device via an advance base station, the reception timing determination portion determines the reception timing of data that is transmitted by a mobile device that exists in a cell of the advance base station on the basis of the distance between the wireless base station device and the advance base station and the cell radius of the advance base station. The data reception portion receives data from the mobile device by performing a reception operation at the reception timing, the delay profile creation portion creates delay profiles on the basis of the received data, and the path detection portion detects paths from the mobile device on the basis of the delay profiles.
摘要翻译：在经由提前基站与移动装置进行通信的无线基站装置中，接收定时确定部分基于先前基站的小区中存在的移动装置发送的数据的接收定时无线基站装置与前进基站之间的距离以及前进基站的小区半径。数据接收部分通过在接收定时执行接收操作从移动设备接收数据，延迟分布创建部分基于接收到的数据创建延迟分布，并且路径检测部分基于该移动设备检测路径的延迟谱。

10. 发明授权

US06757346B2 Code division multiplex radio equipment with interference canceler 失效
标题翻译：具有干扰消除器的码分复用无线电设备
公开(公告)号：US06757346B2
公开(公告)日：2004-06-29
申请号：US09975463
申请日：2001-10-05
申请人： Tamio Saito , Morihiko Minowa , Yoshihiko Asano , Tadashi Nakamura
发明人： Tamio Saito , Morihiko Minowa , Yoshihiko Asano , Tadashi Nakamura
IPC分类号： H04B110
CPC分类号： H04B1/71075
摘要： When an antenna receives a signal, the signal is inputted to delayers through a frequency converter, A/D converters, quadrature demodulators, filters and simultaneously is inputted to a MUX. The receiving signal inputted to the MUX is transmitted to an interference canceler panel, and the interference canceler panel generates both an interference replica signal and a symbol replica signal. The interference canceler panel demodulates the receiving signal for a channel corresponding to the symbol replica signal using both the interference and symbol replica signals. The interference replica signal generated by the interference canceler panel is transmitted to a transmitting/receiving panel and is inputted to interference elimination units. The interference elimination units eliminates interference components by subtracting the interference replica signal from the receiving signal delayed by the delayers and transmits the signal to a baseband signal processing panel.
摘要翻译：当天线接收信号时，该信号通过变频器，A / D转换器，正交解调器，滤波器输入到延迟器，同时被输入到MUX。输入到MUX的接收信号被发送到干扰消除器面板，并且干扰消除器面板产生干扰复制信号和符号复制信号。干扰消除器面板使用干扰和符号复制信号来解调对应于码元复制信号的信道的接收信号。由干扰消除器面板生成的干扰复制信号被发送到发送/接收面板，并被输入到干扰消除单元。干扰消除单元通过从由延迟器延迟的接收信号中减去干扰复制信号来消除干扰成分，并将该信号发送到基带信号处理面板。

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