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1. 发明授权

US08831153B2 Quadrature error compensating circuit 有权
标题翻译：正交误差补偿电路
公开(公告)号：US08831153B2
公开(公告)日：2014-09-09
申请号：US13724277
申请日：2012-12-21
申请人： Hidenori Okuni , Junya Matsuno , Hideo Kasami , Tsuyoshi Kogawa
发明人： Hidenori Okuni , Junya Matsuno , Hideo Kasami , Tsuyoshi Kogawa
IPC分类号： H03D1/00 , H04L27/06 , H04L27/38
CPC分类号： H04L27/38 , H04L27/3863
摘要： According to one embodiment, a quadrature error compensating circuit for acquiring an in-phase component signal and a quadrature component signal, includes a first filter, a first multiplier, a first subtractor, a second filter, a correlation calculating circuit. The first multiplier multiplies the in-phase component signal by a control value. The correlation calculating circuit calculates a cross-correlation value between an output of the first filter and an output of the second filter, and uses the cross-correlation value as the control value.
摘要翻译：根据一个实施例，用于获取同相分量信号和正交分量信号的正交误差补偿电路包括第一滤波器，第一乘法器，第一减法器，第二滤波器，相关计算电路。第一乘法器将同相分量信号乘以控制值。相关计算电路计算第一滤波器的输出和第二滤波器的输出之间的互相关值，并使用互相关值作为控制值。

2. 发明申请

US20130243129A1 QUADRATURE ERROR COMPENSATING CIRCUIT 有权
标题翻译：正确的错误补偿电路
公开(公告)号：US20130243129A1
公开(公告)日：2013-09-19
申请号：US13724277
申请日：2012-12-21
申请人： Hidenori OKUNI , Junya MATSUNO , Hideo KASAMI , Tsuyoshi KOGAWA
发明人： Hidenori OKUNI , Junya MATSUNO , Hideo KASAMI , Tsuyoshi KOGAWA
IPC分类号： H04L27/38
CPC分类号： H04L27/38 , H04L27/3863
摘要： According to one embodiment, a quadrature error compensating circuit for acquiring an in-phase component signal and a quadrature component signal, includes a first filter, a first multiplier, a first subtractor, a second filter, a correlation calculating circuit. The first multiplier multiplies the in-phase component signal by a control value. The correlation calculating circuit calculates a cross-correlation value between an output of the first filter and an output of the second filter, and uses the cross-correlation value as the control value.
摘要翻译：根据一个实施例，一种用于获取同相分量信号和正交分量信号的正交误差补偿电路包括第一滤波器，第一乘法器，第一减法器，第二滤波器，相关计算电路。第一乘法器将同相分量信号乘以控制值。相关计算电路计算第一滤波器的输出和第二滤波器的输出之间的互相关值，并使用互相关值作为控制值。

3. 发明申请

US20120235878A1 RADIO DEVICE 有权
标题翻译：无线电设备
公开(公告)号：US20120235878A1
公开(公告)日：2012-09-20
申请号：US13398098
申请日：2012-02-16
申请人： Toshiya MITOMO , Yukako TSUTSUMI , Hideo KASAMI
发明人： Toshiya MITOMO , Yukako TSUTSUMI , Hideo KASAMI
IPC分类号： H01Q1/50
CPC分类号： H01Q1/50 , H01Q3/00 , H01Q7/00 , H01Q9/16
摘要： There is provided a radio device including an antenna, a first impedance converting circuit, a second impedance converting circuit and a differential output unit. The antenna has a first terminal and a second terminal to receive a signal. The first impedance converting circuit and the second impedance converting circuit have a first impedance and a second impedance, respectively. The first impedance and the second impedance each are controllable. One end of the first impedance converting circuit and one end of the second impedance converting circuit are connected to the first terminal and the second terminal of the antenna, respectively. The differential output unit is connected to the other end of the first impedance converting circuit and the other end of the second impedance converting circuit through which the signal received by the antenna is input to the differential output unit, and transform the signal into a differential signal.
摘要翻译：提供了一种无线电设备，包括天线，第一阻抗转换电路，第二阻抗转换电路和差分输出单元。天线具有接收信号的第一端子和第二端子。第一阻抗转换电路和第二阻抗转换电路分别具有第一阻抗和第二阻抗。第一阻抗和第二阻抗各自是可控的。第一阻抗转换电路的一端和第二阻抗转换电路的一端分别连接到天线的第一端子和第二端子。差分输出单元连接到第一阻抗转换电路的另一端和第二阻抗转换电路的另一端，由天线接收的信号通过该另一端输入到差分输出单元，并将该信号变换成差分信号。

4. 发明申请

US20120195296A1 WIRELESS COMMUNICATION APPARATUS 有权
标题翻译：无线通信设备
公开(公告)号：US20120195296A1
公开(公告)日：2012-08-02
申请号：US13223587
申请日：2011-09-01
申请人： Tomoko ADACHI , Koichiro Ban , Tomoya Tandai , Hideo Kasami
发明人： Tomoko ADACHI , Koichiro Ban , Tomoya Tandai , Hideo Kasami
IPC分类号： H04W84/12
CPC分类号： H04W52/34 , H04W16/14 , H04W52/54 , H04W72/048 , H04W72/082 , H04W74/0808 , H04W84/12 , H04W88/06
摘要： According to embodiments, a wireless communication apparatus supports at least a second wireless communication scheme between a first, wireless communication scheme and the second wireless communication scheme. The first wireless communication scheme requires that a wireless medium is determined to be busy when a reception level is equal to or greater than a minimum reception sensitivity level of physical scheme. The apparatus includes a first processing unit and a second processing unit. The first processing unit is configured to set a value lower than a maximum transmission power of the first wireless communication scheme, for a maximum transmission power of the second wireless communication scheme and set a value greater than the minimum reception sensitivity level, of the physical scheme, for a carrier sense level, when the second wireless communication scheme is used. The second processing unit is configured to carry out carrier sense using the carrier sense level.
摘要翻译：根据实施例，无线通信装置支持第一无线通信方案和第二无线通信方案之间的至少第二无线通信方案。第一无线通信方案要求当接收电平等于或大于物理方案的最小接收灵敏度级别时，无线介质被确定为忙。该装置包括第一处理单元和第二处理单元。第一处理单元被配置为针对第二无线通信方案的最大发送功率设置低于第一无线通信方案的最大发送功率的值，并且设置大于物理方案的最小接收灵敏度水平的值对于载波感测电平，当使用第二无线通信方案时。第二处理单元被配置为使用载波感测电平来执行载波侦听。

5. 再颁专利

USRE43524E1 Wireless communication system and wireless station 有权
标题翻译：无线通信系统和无线站
公开(公告)号：USRE43524E1
公开(公告)日：2012-07-17
申请号：US12694901
申请日：2010-01-27
申请人： Tomoko Adachi , Kuniaki Ito , Hideo Kasami , Kiyoshi Toshimitsu
发明人： Tomoko Adachi , Kuniaki Ito , Hideo Kasami , Kiyoshi Toshimitsu
IPC分类号： H04B7/00
CPC分类号： H01Q1/246 , H01Q3/2605 , H04B17/318 , H04W24/00 , H04W52/0216 , H04W52/146 , H04W52/42 , H04W88/02 , Y02D70/142 , Y02D70/22
摘要： A station determines the presence/absence of directional beam control in an access point, on the basis of received power measured when data transmitted from the access point are received, and the type of the received data. In accordance with the result of this determination, the station controls transmitting power to transmit data to the access point.
摘要翻译：根据接收到从接入点发送的数据时的接收功率和接收到的数据的类型，确定接入点中定向波束控制的存在/不存在。根据该确定的结果，站控制发送功率以将数据发送到接入点。

6. 发明申请

US20070297491A1 Receiver and wireless lan apparatus in which a received signal is correlated to a reference symbol 审中-公开
标题翻译：其中接收信号与参考符号相关的接收机和无线局域网设备
公开(公告)号：US20070297491A1
公开(公告)日：2007-12-27
申请号：US11846650
申请日：2007-08-29
申请人： Hideo Kasami , Hidehiro Matsuoka , Tsuguhide Aoki , Kazumi Sato
发明人： Hideo Kasami , Hidehiro Matsuoka , Tsuguhide Aoki , Kazumi Sato
IPC分类号： H04B1/00
CPC分类号： H04B1/707
摘要： A receiver comprising: an antenna which receives a radio signal including N possible symbols {c1(n), c2(n), cM−1(n), cM(n)}, an N correlation units which are provided corresponding to the N possible symbols, respectively, each correlation unit detecting the degree of correlation with the radio signal received by the antenna, and a symbol determination unit which determines the symbol included in the radio signal received by the antenna based on the degree of correlation detected by the N correlation units. The N correlation units detect the degree of correlation between the radio signal received by the antenna and the N possible symbols represented by M chips {α0c1(n),α0c2(n)+α1c1(n), . . . ,α0cM−1(n)+α1cM−2(n), α0cM(n)+α1cM−1(n)}.
摘要翻译：一种接收机，包括：天线，其接收包括N个可能符号的无线电信号，其中，n个可能的符号（n），c（M），（c），（c） N个相关单元，分别与N个可能的符号对应地设置，每个相关单元检测与由天线接收的无线电信号的相关程度;以及符号确定单元，确定由天线接收的无线电信号中包括的符号基于由N个相关单元检测到的相关程度。 N个相关单元检测由天线接收的无线电信号与由M个码元（n）表示的N个可能符号之间的相关程度），α<0> 2 （n）+α1 C 1 / SUB> ^{（n），。。。（n）M-1 M-2（M + 1） - - - - （1）（n）（n）（n）（n）M-1 （n）}。}

7. 发明授权

US07212793B2 Radio reception apparatus and radio reception method 失效
标题翻译：无线接收装置和无线接收方法
公开(公告)号：US07212793B2
公开(公告)日：2007-05-01
申请号：US10901202
申请日：2004-07-29
申请人： Tsuyoshi Kogawa , Hideo Kasami
发明人： Tsuyoshi Kogawa , Hideo Kasami
IPC分类号： H04Q7/20
CPC分类号： H04B7/0802 , H04B7/0602
摘要： A radio reception apparatus is a radio reception apparatus for demodulating a multicarrier signal modulated according to multicarrier modulation. It includes a plurality of antenna sections, each for receiving a multicarrier signal, a plurality of carrier selection sections, each of the carrier selection sections selecting at least one subcarrier signal for each of the antenna sections out of the multicarrier signal received by each of the antenna sections, an antenna selection section for selecting a reception antenna section from among the antenna sections based on the signal strengths of the subcarrier signals selected by the carrier selection sections, and a demodulation section for demodulating the multicarrier signal received by the antenna section selected by the antenna selection section.
摘要翻译：无线接收装置是用于解调根据多载波调制调制的多载波信号的无线接收装置。它包括多个天线部分，每个天线部分用于接收多载波信号，多个载波选择部分，每个载波选择部分从每个载波选择部分接收的多载波信号中选出每个天线部分的至少一个副载波信号天线部分，用于基于由载波选择部分选择的副载波信号的信号强度从天线部分中选择接收天线部分的天线选择部分和用于解调由天线部分接收的多载波信号的解调部分，天线选择部分。

8. 发明申请

US20060114814A1 Orthogonal frequency division demodulator, method and computer program product 失效
公开(公告)号：US20060114814A1
公开(公告)日：2006-06-01
申请号：US11268657
申请日：2005-11-08
申请人： Hideo Kasami , Hidehiro Matsuoka , Makoto Tsuruta
发明人： Hideo Kasami , Hidehiro Matsuoka , Makoto Tsuruta
IPC分类号： H04J11/00
CPC分类号： H04L25/03006 , H04L2025/03414
摘要： An OFDM demodulator that demodulates an OFDM signal includes an antenna that receives a signal including delayed signals, an estimation circuit that estimates the channel response of the received signal, and a control circuit that controls a length of a retention time interval based on the estimated channel response. The retention time interval includes a time period from the head of a delayed signal having a maximum delay time in the delayed signals to the tail of a preceding signal in the delayed signals based on the estimated channel response. The OFDM demodulator also includes a retention memory that retains a portion of the received signal corresponding to the retention time period, and a selection circuit that selects an OFDM symbol based on a calculation of a maximum likelihood that the retained received signal is equivalent to a signal replica based on the channel response.

9. 发明授权

US07042860B2 Wireless communication system, weight control apparatus, and weight vector generation method 失效
公开(公告)号：US07042860B2
公开(公告)日：2006-05-09
申请号：US09984713
申请日：2001-10-31
申请人： Hideo Kasami , Shuichi Obayashi
发明人： Hideo Kasami , Shuichi Obayashi
IPC分类号： H04Q7/00
CPC分类号： H04W16/28 , H04W16/24
摘要： Signals received by a plurality of antenna elements are supplied to a beam forming circuit via a distributor. The beam forming circuit weights and combines the signals to output a reception signal corresponding to a beam having a predetermined directionality pattern. A weight used to control weighting and combining is set by a weight controller. Upon receiving a registration request from an unregistered terminal, the weight controller calculates a weight vector used to form a beam having null directionality toward that terminal, and maximum directionality toward the range of an area other than an area where the terminal is located of a plurality of areas obtained by dividing the area covered by the antenna elements in accordance with direction.

10. 发明授权

US08502540B2 Wireless magnetic resonance imaging apparatus generating synchronized clock-regenerated signals and video 有权
标题翻译：无线磁共振成像装置产生同步的时钟再生信号和视频
公开(公告)号：US08502540B2
公开(公告)日：2013-08-06
申请号：US12614943
申请日：2009-11-09
申请人： Toshiyuki Nakanishi , Koji Akita , Hideo Kasami , Takahiro Sekiguchi
发明人： Toshiyuki Nakanishi , Koji Akita , Hideo Kasami , Takahiro Sekiguchi
IPC分类号： G01R33/36 , G01R33/3607
CPC分类号： G01R33/3692 , G01R33/3607 , G01R33/3621
摘要： A magnetic resonance imaging apparatus includes a probe unit and a control/imaging unit. The probe unit includes a converter converting a sampled magnetic-resonance signal into a digital signal, a first transmitter converting the digital signal into a first-radio signal, a first receiver receiving and performing detection on the second-radio signal to obtain a first-received signal, and a clock-regeneration unit regenerating a clock component from the first-received signal to generate a regenerated-clock signals. The control/imaging unit includes a second-receiver receiving the first-radio signal to obtain a second-received signal, a data processor performing data processing on the second-received signal in synchronism with a reference-clock signal to obtain a video signal, and a second transmitter which modulates a carrier wave using the reference-clock signal, converts the reference-clock signal into the second-radio signal, and transmits the second-radio signal through the second-wireless channel.
摘要翻译：磁共振成像装置包括探针单元和控制/成像单元。探头单元包括将采样的磁共振信号转换为数字信号的转换器，将数字信号转换为第一无线电信号的第一发射机，第一接收机接收并对第二无线电信号执行检测，以及时钟再生单元，从第一接收信号再生时钟分量，以产生再生时钟信号。控制/成像单元包括接收第一无线电信号以获得第二接收信号的第二接收机，数据处理器与参考时钟信号同步地对第二接收信号执行数据处理以获得视频信号，以及使用基准时钟信号对载波进行调制的第二发送器，将基准时钟信号转换为第二无线信号，并通过第二无线信道发送第二无线信号。

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