公开(公告)号：US07646822B2

公开(公告)日：2010-01-12

申请号：US10570790

申请日：2004-09-09

申请人： Kiyotaka Kobayashi ,  Yutaka Murakami ,  Masayuki Orihashi ,  Akihiko Matsuoka

发明人： Kiyotaka Kobayashi ,  Yutaka Murakami ,  Masayuki Orihashi ,  Akihiko Matsuoka

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04B7/0604 ,  H04B7/0608 ,  H04B7/0689 ,  H04B7/0691 ,  H04L25/0204 ,  H04L25/0224 ,  H04L27/18 ,  H04L27/2601 ,  H04L27/261

摘要： A transmitting apparatus that transmits signals from a plurality of antennas, and can improve the security of communication compared with a conventional system. In this apparatus, an antenna changing section (105) stores an antenna change pattern in internal memory, and each time a clock signal is input, generates an antenna change signal directing an antenna change in accordance with the antenna change pattern, and outputs this signal to an antenna selection section (106). Based on the antenna change signal, the antenna selection section (106) selects two different antennas from among the transmitting antennas (107-1 through 107-3) as transmitting antennas of transmit signal A output from a radio section (104-1) and transmit signal B output from a radio section (104-2), and performs radio transmission of transmit signal A and transmit signal B using the selected transmitting antennas.

摘要翻译： 从多个天线发送信号的发送装置，与以往的系统相比，能够提高通信的安全性。 在该装置中，天线变换部（105）将天线变换模式存储在内部存储器中，并且每次输入时钟信号时，根据天线变化模式生成指示天线变化的天线变换信号，并输出该信号 到天线选择部分（106）。 基于天线变换信号，天线选择部（106）从发送天线（107-1〜107-3）中选择2个不同的天线作为从无线部（104-1）输出的发送信号A的发送天线， 从无线电部分（104-2）输出的发送信号B，并且使用所选择的发送天线执行发送信号A和发送信号B的无线电发送。

公开(公告)号：US20090046818A1

公开(公告)日：2009-02-19

申请号：US11913840

申请日：2006-03-16

申请人： Yutaka Murakami ,  Kiyotaka Kobayashi ,  Masayuki Orihashi ,  Akihiko Matsuoka ,  Shutai Okamura

发明人： Yutaka Murakami ,  Kiyotaka Kobayashi ,  Masayuki Orihashi ,  Akihiko Matsuoka ,  Shutai Okamura

IPC分类号： H04L27/06

CPC分类号： H04L27/38 ,  H04B7/04 ,  H04L25/03184 ,  H04L25/067 ,  H04L2025/0342 ,  H04L2025/03426

摘要： It is possible to demodulate a plurality of modulated signals transmitted from a plurality of antennas by using a comparatively small-size circuit with a preferable error ratio characteristic. Partial bit judgment units (509, 512) demodulates partial bits of the 64 QAM-modulated signal by modifying which of the bits in the 6-bit strings constituting a symbol is to be demodulated depending on in which region of the IQ plane the reception signal point exists. This improves the partial bit error characteristic judged by the partial bit judgment units (509, 512), which in turn improves reliability of the reduced candidate signal point for use by a likelihood detection unit (518). As a result, it is possible to improve the error ratio characteristic of the final reception digital signals (322, 323).

摘要翻译： 可以通过使用具有优选误差比特性的较小尺寸的电路来解调从多个天线发送的多个调制信号。 部分位判断单元（509,512）通过根据IQ平面的哪个区域修改构成符号的6位串中的哪个位被解调来解调64QAM调制信号的部分位，接收信号 点存在。 这改善了由部分比特判断单元（509,512）判断的部分比特误差特性，这又提高了可靠性检测单元（518）使用的缩减候补信号点的可靠性。 结果，可以提高最终接收数字信号（322,323）的误差比特性。

公开(公告)号：US07324481B2

公开(公告)日：2008-01-29

申请号：US10566682

申请日：2004-08-04

申请人： Kiyotaka Kobayashi ,  Yutaka Murakami ,  Masayuki Orihashi

发明人： Kiyotaka Kobayashi ,  Yutaka Murakami ,  Masayuki Orihashi

IPC分类号： H04Q7/00

CPC分类号： H04L27/2649 ,  H04W52/42

摘要： A radio transmitting apparatus that has a plurality of antennas and changes the number of modulated signals transmitted simultaneously according to the propagation environment and so forth. A transmission power changing section 12 of a radio transmitting apparatus of the present invention adjusts the pilot symbol signal level so as to match the data symbol composite signal level according to the number of transmit modulated signals set by a modulated signal number setting section 11. By this means, the operating range of received pilot symbols and the operating range of received data symbols become approximately the same on the receiving side, enabling pilot symbol quantization error to be reduced. As a result, the precision of radio wave propagation environment estimation, time synchronization, and frequency offset estimation using pilot symbols improves, and consequently data reception quality improves.

摘要翻译： 具有多个天线的无线发送装置，根据传播环境等改变同时发送的调制信号的数量。 本发明的无线发送装置的发送功率变更部12根据由调制信号编号设定部11设定的发送调制信号的数量来调整导频符号信号电平，使其符合数据符号合成信号电平。通过 这意味着接收到的导频符号的操作范围和接收数据符号的操作范围在接收侧变得大致相同，从而能够降低导频符号量化误差。 结果，使用导频符号的无线电波传播环境估计，时间同步和频率偏移估计的精度提高，因此提高了数据接收质量。

公开(公告)号：US20070140377A1

公开(公告)日：2007-06-21

申请号：US10579745

申请日：2004-11-17

申请人： Yutaka Murakami ,  Kiyotaka Kobayashi ,  Masayuki Orihashi ,  Akihiko Matsuoka ,  Daichi Imamura ,  Rahul Malik

发明人： Yutaka Murakami ,  Kiyotaka Kobayashi ,  Masayuki Orihashi ,  Akihiko Matsuoka ,  Daichi Imamura ,  Rahul Malik

IPC分类号： H04L27/00 ,  H04L1/02

CPC分类号： H04B7/0413 ,  H04B7/0851 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/0086 ,  H04L1/0618 ,  H04L1/1819 ,  H04L5/0023 ,  H04L25/03229 ,  H04L25/03305 ,  H04L25/03324 ,  H04L25/03891 ,  H04L27/2628 ,  H04L27/265 ,  H04L2025/03414 ,  H04L2025/03611

摘要： Soft decision sections (503, 506) provisionally decide each modulated signal (502, 505) separated using an inverse matrix calculation of a channel fluctuation matrix at separation section (501). Signal point reduction sections (508, 510, 514, 516) reduce candidate signal points of a multiplexed modulated signal using the provisional decision results (504, 507). Soft decision sections (512, 518) make a correct decision using the reduced candidate signal points and obtain received data (RA, RB) of each modulated signal. This allows received data RA, RB with a good error rate characteristic to be obtained with a relatively small number of calculations without reducing data transmission efficiency.

摘要翻译： 软判决部分（503,506）临时确定在分离部分（501）处使用信道波动矩阵的逆矩阵计算分离的每个调制信号（502,505）。 信号点减少部分（508,510,514,516）使用临时决策结果（504,507）来减少复用的调制信号的候选信号点。 软判决部分（512,518）使用减小的候选信号点进行正确的判定，并获得每个调制信号的接收数据（RA，RB）。 这允许以相对较少数量的计算获得具有良好错误率特性的接收数据RA，RB，而不降低数据传输效率。

公开(公告)号：US20070030918A1

公开(公告)日：2007-02-08

申请号：US10570790

申请日：2004-09-09

申请人： Kiyotaka Kobayashi ,  Yutaka Murakami ,  Masayuki Orihashi ,  Akihiko Matsuoka

发明人： Kiyotaka Kobayashi ,  Yutaka Murakami ,  Masayuki Orihashi ,  Akihiko Matsuoka

IPC分类号： H04L1/02 ,  G05B19/00

CPC分类号： H04B7/0604 ,  H04B7/0608 ,  H04B7/0689 ,  H04B7/0691 ,  H04L25/0204 ,  H04L25/0224 ,  H04L27/18 ,  H04L27/2601 ,  H04L27/261

摘要： A transmitting apparatus that transmits signals from a plurality of antennas, and can improve the security of communication compared with a conventional system. In this apparatus, an antenna changing section (105) stores an antenna change pattern in internal memory, and each time a clock signal is input, generates an antenna change signal directing an antenna change in accordance with the antenna change pattern, and outputs this signal to an antenna selection section (106). Based on the antenna change signal, the antenna selection section (106) selects two different antennas from among the transmitting antennas (107-1 through 107-3) as transmitting antennas of transmit signal A output from a radio section (104-1) and transmit signal B output from a radio section (104-2), and performs radio transmission of transmit signal A and transmit signal B using the selected transmitting antennas.

摘要翻译： 从多个天线发送信号的发送装置，与以往的系统相比，能够提高通信的安全性。 在该装置中，天线变换部（105）将天线变换模式存储在内部存储器中，并且每次输入时钟信号时，根据天线变化模式生成指示天线变化的天线变换信号，并输出该信号 到天线选择部分（106）。 基于天线变换信号，天线选择部（106）从发送天线（107-1〜107-3）中选择2个不同的天线作为从无线部（104-1）输出的发送信号A的发送天线， 从无线电部分（104-2）输出的发送信号B，并且使用所选择的发送天线执行发送信号A和发送信号B的无线电发送。

公开(公告)号：US06597590B2

公开(公告)日：2003-07-22

申请号：US10097567

申请日：2002-03-15

申请人： Takashi Ikimi ,  Kiyotaka Kobayashi

发明人： Takashi Ikimi ,  Kiyotaka Kobayashi

IPC分类号： H02M7521

CPC分类号： H02M7/487 ,  H02M1/34 ,  H02M2001/348

摘要： Switching devices conjointly use snubber circuits without disposing for each switching device and is interposed between a DC neutral point N and a positive terminal plate of a DC power source. A second snubber circuit is interposed between the DC neutral point N and a negative plate terminal of a DC power source. A third snubber circuit is interposed between the DC neutral point N and an AC output terminal O. The snubber circuit suppresses the rise of the voltage when each switching device shifts from ON to OFF. The snubber circuit clamps a voltage applied to the switching device when this voltage exceeds the power source voltage during the process in which the switching device shifts from ON to OFF. The snubber circuit clamps a voltage applied to the switching device or when this voltage exceeds the power source voltage during the process.

公开(公告)号：US06554497B2

公开(公告)日：2003-04-29

申请号：US09891261

申请日：2001-06-27

申请人： Kiyotaka Kobayashi ,  Yoji Naka ,  Yutaka Yoshida

发明人： Kiyotaka Kobayashi ,  Yoji Naka ,  Yutaka Yoshida

IPC分类号： G03B1704

CPC分类号： G03B17/04

摘要： A compact camera has a camera case that covers up more than half of a camera body in a resting position where the camera case covers a taking lens, a flash projector, a battery chamber and a cartridge chamber. By sliding the camera case to a working position uncovering the taking lens and the flash projector, the flash projector springs up to a flashing position, and a main switch is turned on. Then, a lens barrel is protruded out of the camera body. Locking mechanisms are provided to stop the camera case at the working position. The camera case is allowed to move from the working position to the resting position by stowing the flash projector into the camera body. The camera case is allowed to move from the working position in an uncoving direction by operating a knob that is mounted in a room provided inside the battery chamber. The battery chamber is located behind the flash projector in the stowed position, and a battery chamber lid and the flash projecotr are mounted rotatable about the same axis. A door opening mechanism is provided for opening and closing a door member of a photo film cartridge loaded in the cartridge chamber in cooperation with sliding movement of the camera case. The door opening mechanism is interconnected with a ratchet lever such that the ratchet lever stops the camera case at a safety lock position where it is impossible to open the cartridge chamber, so long as the door member is open.

摘要翻译： 小型相机具有相机外壳，其在相机外壳覆盖拍摄镜头，闪光灯投影仪，电池室和暗盒室的静止位置中遮盖相​​机主体的一半以上。 通过将相机外壳滑动到露出拍摄镜头和闪光灯投影机的工作位置，闪光灯投射器将弹起到闪烁位置，并将主开关打开。 然后，镜头筒从照相机主体突出。 提供锁定机构以在工作位置停止相机外壳。 通过将闪光灯投影机放入相机机身，相机外壳允许从工作位置移动到静止位置。 允许相机外壳通过操作安装在设置在电池室内部的房间中的旋钮从工作位置沿着展开方向移动。 电池室位于收纳位置的闪光投影仪后面，并且电池室盖和闪光投影仪可围绕同一轴线旋转安装。 一个门打开机构用于与照相机外壳的滑动运动协同打开和关闭装在暗盒室中的摄影胶片暗盒的门件。 门打开机构与棘爪杆相互连接，使得棘爪杆将相机外壳固定在不可能打开暗盒室的安全锁定位置，只要门构件打开即可。

公开(公告)号：US5666573A

公开(公告)日：1997-09-09

申请号：US729688

申请日：1996-10-07

申请人： Kiyotaka Kobayashi

发明人： Kiyotaka Kobayashi

IPC分类号： G03B17/00 ,  G03B7/24 ,  G03B17/24 ,  G03B17/28

CPC分类号： G03B7/24 ,  G03B2206/00

摘要： A microcomputer and an EEPROM are mounted on a flexible printed circuit board. A land of the flexible printed circuit board is fixed to the upper wall of a cassette chamber. Provided on the bottom surface of this land are a reflection type photosensor for reading a bar code of a photographic film cassette and a plurality of contacts. The reflection type photosensor and the plurality of contacts are exposed in the cassette chamber via an opening formed in the upper wall. A data input apparatus has a connector and a console unit. As the connector is inserted into the cassette chamber, each connector pin of the connector contacts each of the plurality of contacts to electrically connect the microcomputer to the data input apparatus. By manipulating the console unit of the data input apparatus, various sets of data are written in EEPROM via the microcomputer of the camera. Data in EEPROM is read by the data input apparatus.

摘要翻译： 微型计算机和EEPROM安装在柔性印刷电路板上。 柔性印刷电路板的平台固定在盒室的上壁上。 在该台面的底面设置有用于读取摄影胶片暗盒的条形码和多个触点的反射型光电传感器。 反射型光电传感器和多个触点经由形成在上壁中的开口暴露在盒室中。 数据输入装置具有连接器和控制台单元。 当连接器插入盒室时，连接器的每个连接器针都接触到多个触点中的每一个，以将微型计算机电连接到数据输入装置。 通过操纵数据输入装置的控制台单元，通过相机的微型计算机将各种数据组写入EEPROM。 EEPROM中的数据由数据输入装置读取。

公开(公告)号：US08724729B2

公开(公告)日：2014-05-13

申请号：US13399848

申请日：2012-02-17

申请人： Yutaka Murakami ,  Kiyotaka Kobayashi ,  Masayuki Orihashi ,  Akihiko Matsuoka ,  Daichi Imamura ,  Rahul Malik

发明人： Yutaka Murakami ,  Kiyotaka Kobayashi ,  Masayuki Orihashi ,  Akihiko Matsuoka ,  Daichi Imamura ,  Rahul Malik

IPC分类号： H04B7/02

CPC分类号： H04B7/0413 ,  H04B7/0851 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/0086 ,  H04L1/0618 ,  H04L1/1819 ,  H04L5/0023 ,  H04L25/03229 ,  H04L25/03305 ,  H04L25/03324 ,  H04L25/03891 ,  H04L27/2628 ,  H04L27/265 ,  H04L2025/03414 ,  H04L2025/03611

摘要： Soft decision sections provisionally decide each modulated signal separated using an inverse matrix calculation of a channel fluctuation matrix at separation section. Signal point reduction sections reduce candidate signal points of a multiplexed modulated signal using the provisional decision results. Soft decision sections make a correct decision using the reduced candidate signal points and obtain received data of each modulated signal. This allows received data RA, RB with a good error rate characteristic to be obtained with a relatively small number of calculations without reducing data transmission efficiency.

摘要翻译： 软判决部分使用在分离部分的信道波动矩阵的逆矩阵计算来临时决定分离的每个调制信号。 信号点减少部分使用临时判定结果来减少复用调制信号的候选信号点。 软判决部分使用缩减的候选信号点做出正确的决定，并获得每个调制信号的接收数据。 这允许以相对较少数量的计算获得具有良好错误率特性的接收数据RA，RB，而不降低数据传输效率。

公开(公告)号：US08520769B2

公开(公告)日：2013-08-27

申请号：US13590779

申请日：2012-08-21

申请人： Yutaka Murakami ,  Kiyotaka Kobayashi ,  Masayuki Orihashi ,  Akihiko Matsuoka

发明人： Yutaka Murakami ,  Kiyotaka Kobayashi ,  Masayuki Orihashi ,  Akihiko Matsuoka

IPC分类号： H04L27/00

CPC分类号： H04B7/0413 ,  H04B7/0608 ,  H04B7/0613 ,  H04B7/0689 ,  H04B7/0697 ,  H04L1/06

摘要： Of any one of transmission method X of transmitting modulated signal A and modulated signal B including the same data from a plurality of antennas and transmission method Y of transmitting modulated signal A and modulated signal B having different data from the plurality of antennas, base station apparatus 201 does not change the transmission method during data transmission and changes only the modulation scheme. Base station apparatus 201 transmits modulated signal A and modulated signal B to communication terminal apparatus 251 using the determined transmission method and modulation scheme. In this way, it is possible to improve data transmission efficiency when transmitting data using the plurality of antennas.

摘要翻译： 发送调制信号A的发送方法X和包含来自多个天线的相同数据的调制信号B和从多个天线发送调制信号A和调制信号B的数据不同的发送方式Y中的任一种，基站装置 201在数据传输期间不改变传输方法，并且仅改变调制方案。 基站装置201使用确定的发送方法和调制方式向调制信号A和调制信号B发送到通信终端装置251。 以这种方式，可以在使用多个天线发送数据时提高数据传输效率。