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61. 发明申请

US20050276314A1 Interference eliminating apparatus and method 审中-公开
标题翻译：干扰消除装置和方法
公开(公告)号：US20050276314A1
公开(公告)日：2005-12-15
申请号：US10964748
申请日：2004-10-14
申请人： Takashi Dateki , Hideto Furukawa
发明人： Takashi Dateki , Hideto Furukawa
IPC分类号： H04J13/00 , H04B1/10 , H04B1/7107 , H04B1/7115 , H04B1/707
CPC分类号： H04B1/7107
摘要： A RAKE receiving unit (50) despreads and RAKE-combines a receive signal by a spreading code codel of a desired signal. A correlation calculation unit (61) in a canceling-signal generator (60) calculates a correlation value F between the spreading code codel and a non-orthogonal code code2. An amplitude-ratio acquisition unit (62) acquires an amplitude ratio A between a pilot signal and an undesired signal contained in the receive signal, a RAKE combiner (63) RAKE-combines multipath channel estimation values, and a canceling-signal output unit (64) multiplies the correlation value F, amplitude ratio A and result B of RAKE-combination of the channel estimation values and generates a canceling signal (undesired signal component) X. A signal eliminating unit 70 subtracts the canceling signal X from the RAKE-combined signal R that is output from the RAKE receiving unit (50), thereby outputting the desired signal.
摘要翻译： RAKE接收单元（50）通过所需信号的扩展码编码解扩和RAKE组合接收信号。消除信号发生器（60）中的相关计算单元（61）计算扩展码编码和非正交码码2之间的相关值F. 幅度比获取单元（62）获取导频信号和接收信号中包含的不需要信号之间的振幅比A，RAKE组合器（63）RAKE组合多径信道估计值和消除信号输出单元 64）乘以信道估计值的RAKE组合的相关值F，幅度比A和结果B，并产生消除信号（不需要的信号分量）X.信号消除单元70从RAKE组合中减去消除信号X 信号R，其从RAKE接收单元（50）输出，从而输出所需信号。

62. 发明授权

US6088583A Automatic gain control circuit 失效
标题翻译：自动增益控制电路
公开(公告)号：US6088583A
公开(公告)日：2000-07-11
申请号：US120076
申请日：1998-07-21
申请人： Masahiko Shimizu , Hideto Furukawa , Tomonori Sato , Koji Matsuyama , Masaaki Fujii
发明人： Masahiko Shimizu , Hideto Furukawa , Tomonori Sato , Koji Matsuyama , Masaaki Fujii
IPC分类号： H03G3/30 , H04B7/08 , H04J13/00 , H04B1/06
CPC分类号： H03G3/3052 , H03G3/3068
摘要： In an automatic gain control (AGC) circuit for controlling a preceding gain control unit and a following gain control unit, the AGC circuit according to the present invention includes at least a comparison unit, a first gain control signal output unit and a second gain control signal output unit. The comparison unit compares a signal level from the following gain control unit with a reference value. The first gain control signal output unit outputs a first gain control signal to the following gain control unit in response to an output signal obtained as a result of comparison in the comparison unit. The second gain control signal output unit outputs a second gain control signal to the preceding gain control unit. Further, the second gain control signal has a time constant longer than that of the first gain control signal output unit, in response to the output signal obtained as the result of comparison in the comparison unit.
摘要翻译：在用于控制前一增益控制单元和后续增益控制单元的自动增益控制（AGC）电路中，根据本发明的AGC电路至少包括比较单元，第一增益控制信号输出单元和第二增益控制信号输出单元。比较单元将来自以下增益控制单元的信号电平与参考值进行比较。第一增益控制信号输出单元响应于在比较单元中作为比较结果而获得的输出信号，向第二增益控制单元输出第一增益控制信号。第二增益控制信号输出单元向前一增益控制单元输出第二增益控制信号。此外，响应于作为比较结果的比较结果获得的输出信号，第二增益控制信号具有比第一增益控制信号输出单元的时间常数更长的时间常数。

63. 发明授权

US5524029A Network control system for controlling relative errors between network nodes 失效
标题翻译：网络控制系统，用于控制网络节点之间的相对误差
公开(公告)号：US5524029A
公开(公告)日：1996-06-04
申请号：US463671
申请日：1995-06-05
申请人： Tetsuyoshi Takenaka , Hideto Furukawa , Nobutsugu Fujino , Satoru Chikuma , Atsushi Yamashita , Takeshi Inoue
发明人： Tetsuyoshi Takenaka , Hideto Furukawa , Nobutsugu Fujino , Satoru Chikuma , Atsushi Yamashita , Takeshi Inoue
IPC分类号： H04J3/06 , H04L1/00 , H04B7/00
CPC分类号： H04W56/0035 , H04J3/0638 , H04L1/00
摘要： A network control system for controlling a plurality of nodes respectively corresponding to, and provided in, a plurality of radio zones. Each node has a corresponding base station, where a mobil station travels among the plurality of radio zones and communicates with the base station of a respective node when travelling in a radio zone corresponding to the respective node. Each base station transmits a transmission signal for the corresponding node to adjacent nodes, receives transmission signals transmitted from the base stations of adjacent nodes and spatially filters the received transmission signals. Each base station includes (a) a notification unit notifying the base stations of adjacent nodes of transmission timing information of the transmission signal of its own node, and (b) a correction unit receiving transmission timing information from the base stations of adjacent nodes indicating the timing of the transmission signals of the adjacent nodes, and correcting the timing of the transmission signal of its own node to minimize a difference between the timing of the transmission signal of its own node and the timing of the spatially filtered transmission signals received from the base stations of the adjacent nodes.
摘要翻译：一种网络控制系统，用于分别对应于并提供在多个无线电区域中的多个节点进行控制。每个节点具有对应的基站，其中移动站在多个无线电区域之间行进，并且在与相应节点对应的无线电区域中行进时与相应节点的基站进行通信。每个基站向相邻节点发送相应节点的发送信号，接收从相邻节点的基站发送的发送信号，并对所接收的发送信号进行空间滤波。每个基站包括（a）向相邻节点的基站通知其自身节点的发送信号的发送定时信息的通知单元，以及（b）从相邻节点的基站接收发送定时信息的校正单元，对相邻节点的发送信号的定时进行校正，并且校正其自身节点的发送信号的定时，以最小化其自身节点的发送信号的定时与从基站接收的空间被滤波的发送信号的定时之间的差异相邻节点的站。

64. 发明授权

US5373247A Automatic frequency control method and circuit for correcting an error between a received carrier frequency and a local frequency 失效
标题翻译：用于校正接收到的载波频率和本地频率之间的误差的自动频率控制方法和电路
公开(公告)号：US5373247A
公开(公告)日：1994-12-13
申请号：US10364
申请日：1993-01-28
申请人： Hideto Furukawa , Koji Matsuyama , Tomonori Sato
发明人： Hideto Furukawa , Koji Matsuyama , Tomonori Sato
IPC分类号： H04L27/22 , H03J7/02 , H04L27/00 , H04L27/233 , H03C3/00 , H03D3/00 , H03D3/20 , H04L27/14
CPC分类号： H03J7/02 , H04L27/2332 , H04L2027/0028 , H04L2027/0055 , H04L2027/0065 , H04L2027/0069
摘要： An AFC method is used in a demodulator, which employs a 2.sup.n -phase phase shift keying modulation system, where n is an integer greater than or equal to two, to correct an error between a received carrier frequency and a local frequency. The AFC method includes the steps of (a) subjecting an intermediate frequency signal of a signal received by the demodulator to a quadrature wave detection to obtain I-axis and Q-axis signals, (b) converting amplitude information of the I-axis and Q-axis signals into phase information which includes frequency information, and (c) correcting the local frequency based on the frequency information included in the phase information.
摘要翻译：在解调器中使用AFC方法，其采用2n阶相移键控调制系统，其中n是大于或等于2的整数，以校正接收的载波频率和本地频率之间的误差。 AFC方法包括以下步骤：（a）对由解调器接收到的信号的中频信号进行正交检波以获得I轴和Q轴信号，（b）转换I轴的幅度信息和将Q轴信号变换为包括频率信息的相位信息，以及（c）基于包括在相位信息中的频率信息来校正本地频率。

65. 发明授权

US08447253B2 Radio communication system 失效
标题翻译：无线通信系统
公开(公告)号：US08447253B2
公开(公告)日：2013-05-21
申请号：US11819410
申请日：2007-06-27
申请人： Hideto Furukawa
发明人： Hideto Furukawa
IPC分类号： H03J7/18
CPC分类号： H04B1/005 , H04B7/2621 , H04L27/2602
摘要： In a radio communication system in which multiple bands or a plurality of different radio frequencies are used, a different radio transmission method is used in each band or at each radio frequency. For example, by transmitting data using radio formats which are different in each band or at each radio frequency, the radio transmission method is made different in each band or at each radio frequency. In order to vary the radio format, (1) the pilot length is varied at each radio frequency; or (2) the pilot interval is varied at each radio frequency; or (3) the guard interval length is varied in each band or at each radio frequency; or (4) when multicarrier modulation is used for radio communication in each band, the subcarrier interval for multicarrier transmission is varied in each band.
摘要翻译：在使用多个频带或多个不同射频的无线电通信系统中，在每个频带或每个射频使用不同的无线电传输方法。例如，通过使用在每个频带或每个射频不同的无线电格式发送数据，使得无线电传输方法在每个频带或每个射频处不同。为了改变无线电格式，（1）导频长度在每个射频频率下变化; 或（2）导频间隔在每个射频处变化; 或（3）每个频带或每个射频改变保护间隔长度; 或（4）当多载波调制用于每个频带中的无线电通信时，多载波传输的子载波间隔在每个频带中变化。

66. 发明授权

US08095171B2 Radio channel control method and receiving apparatus 有权
公开(公告)号：US08095171B2
公开(公告)日：2012-01-10
申请号：US13011527
申请日：2011-01-21
申请人： Hideto Furukawa , Takashi Dateki
发明人： Hideto Furukawa , Takashi Dateki
IPC分类号： H04Q7/20
CPC分类号： H04W28/0236 , H04W52/24
摘要： A radio channel control method for controlling, in a radio communication system having a transmitter and a receiver, a radio channel from the transmitter toward the receiver. The method includes receiving a signal transmitted from the transmitter by the receiver, measuring reception quality of the signal, generating information which indicates increment or decrement of the reception quality, and controlling a modulation or coding for the radio channel based on the information.

67. 发明授权

US08073480B2 Radio channel control method and receiving apparatus 有权
标题翻译：无线信道控制方法和接收装置
公开(公告)号：US08073480B2
公开(公告)日：2011-12-06
申请号：US11730670
申请日：2007-04-03
申请人： Hideto Furukawa , Takashi Dateki
发明人： Hideto Furukawa , Takashi Dateki
IPC分类号： H04Q7/20
CPC分类号： H04W28/0236 , H04W52/24
摘要： A base station used in a radio communication system includes a transmitting unit operable to transmit a signal to a receiver and a controller operable to control a modulation or coding of a radio channel according to a decision made by using information which indicates increment or decrement of reception quality of the signal.
摘要翻译：在无线电通信系统中使用的基站包括：发送单元，用于向接收机发送信号;以及控制器，用于根据通过使用指示递增或减少接收的信息进行的决定来控制无线电信道的调制或编码信号质量。

68. 发明授权

US07782923B2 Wireless communication system and device for controlling the peak to average power ratio 有权
标题翻译：用于控制峰值与平均功率比的无线通信系统和设备
公开(公告)号：US07782923B2
公开(公告)日：2010-08-24
申请号：US11332712
申请日：2006-01-13
申请人： Daisuke Ogawa , Takashi Dateki , Hideto Furukawa , Nobukazu Fudaba
发明人： Daisuke Ogawa , Takashi Dateki , Hideto Furukawa , Nobukazu Fudaba
IPC分类号： H04B1/69
CPC分类号： H04L27/262 , H04B1/707 , H04B2201/70706 , H04B2201/709709 , H04L27/2621
摘要： A wireless communication system, to control a peak power to an average power ratio because an amplifier characteristic of the wireless communication system include non-linear characteristic if input signal large the amplifier makes distortions. A wireless communication system comprises for suppressing a peak power to an average power ratio to process known signal like a pilot signal.
摘要翻译：无线通信系统，用于将峰值功率控制为平均功率比，因为无线通信系统的放大器特性如果输入信号较大，放大器产生失真，则包括非线性特性。无线通信系统包括用于抑制平均功率比的峰值功率以处理诸如导频信号的已知信号。

69. 发明申请

US20070173206A1 Radio channel control method and receiving apparatus 有权
标题翻译：无线信道控制方法和接收装置
公开(公告)号：US20070173206A1
公开(公告)日：2007-07-26
申请号：US11730671
申请日：2007-04-03
申请人： Hideto Furukawa , Takashi Dateki
发明人： Hideto Furukawa , Takashi Dateki
IPC分类号： H04B7/00 , H04B1/00
CPC分类号： H04W28/0236 , H04W52/24
摘要： A radio channel control method for controlling, in a radio communication system having a transmitter and a receiver, a radio channel from the transmitter toward the receiver. The method includes receiving a signal transmitted from the transmitter by the receiver, measuring reception quality of the signal, generating information which indicates increment or decrement of the reception quality, and controlling a modulation or coding for the radio channel based on the information.
摘要翻译：一种用于在具有发射机和接收机的无线电通信系统中控制从发射机到接收机的无线电信道的无线电信道控制方法。该方法包括接收由接收机从发射机发送的信号，测量信号的接收质量，产生指示接收质量增加或减少的信息，以及基于该信息来控制无线电信道的调制或编码。

70. 发明申请

US20050130692A1 Radio channel control method and receiving apparatus 有权
标题翻译：无线信道控制方法和接收装置
公开(公告)号：US20050130692A1
公开(公告)日：2005-06-16
申请号：US11043307
申请日：2005-01-26
申请人： Hideto Furukawa , Takashi Dateki
发明人： Hideto Furukawa , Takashi Dateki
IPC分类号： H04B7/00 , H04B7/005
CPC分类号： H04W28/0236 , H04W52/24
摘要： According to the present invention, in response to a propagation environment of a radio channel, based on transmission power control information for controlling transmission power of the radio channel, a receiving apparatus generates information concerning a transmission parameter; notifies the information concerning a transmission parameter to a transmitting apparatus; the transmitting apparatus control the radio channel based on the information concerning a transmission parameter from the receiving apparatus, and thereby, the transmitting apparatus can rapidly change the transmission parameter in response to a fluctuation of the propagation environment of the radio channel.
摘要翻译：根据本发明，响应于无线电信道的传播环境，基于用于控制无线电信道的发送功率的发送功率控制信息，接收装置生成关于发送参数的信息; 将关于发送参数的信息通知给发送装置; 发送装置根据来自接收装置的发送参数的信息来控制无线信道，由此，发送装置能够根据无线信道的传播环境的波动来迅速地变更发送参数。

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