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1. 发明授权

US06707844B1 Synchronous circuit and receiver 失效
标题翻译：同步电路和接收器
公开(公告)号：US06707844B1
公开(公告)日：2004-03-16
申请号：US09481943
申请日：2000-01-13
申请人： Ichiro Imaizumi , Osamu Sato , Hisashi Kawai , Tetsuhiko Miyatani , Takahiro Todate , Kouya Hoshina
发明人： Ichiro Imaizumi , Osamu Sato , Hisashi Kawai , Tetsuhiko Miyatani , Takahiro Todate , Kouya Hoshina
IPC分类号： H04B1707
CPC分类号： H04B1/7093 , H04B1/70735 , H04B2201/70707
摘要： There is disclosed a synchronous circuit and a receiver in which a long code for use in communication can be determined in a short time, and circuit scale can be reduced. Upon receiving input of a data stop signal from a control unit, a matched filter continues to hold the signal held at the time, performs a product sum operation of a spreading code successively inputted from a spreading code generator and the held signal, and successively outputs correlation signals in the synchronous circuit and the receiver.
摘要翻译：公开了一种同步电路和接收器，其中可以在短时间内确定用于通信的长码，并且可以减小电路规模。在从控制单元接收到数据停止信号的输入时，匹配滤波器继续保持当时保持的信号，执行从扩展码发生器连续输入的扩展码和保持信号的乘积和运算，并依次输出同步电路和接收机中的相关信号。

2. 发明申请

US20060189282A1 Transmitter 有权
标题翻译：发射机
公开(公告)号：US20060189282A1
公开(公告)日：2006-08-24
申请号：US10532338
申请日：2003-10-20
申请人： Norio Hasegawa , Tetsuhiko Miyatani , Hisashi Kawai , Masami Yoshida , Jun Watanabe
发明人： Norio Hasegawa , Tetsuhiko Miyatani , Hisashi Kawai , Masami Yoshida , Jun Watanabe
IPC分类号： H04B1/04 , H01Q11/12
CPC分类号： H04L27/2614
摘要： A transmitter for averagedly suppressing the variation in input level of an amplifier according to variation in carrier level. The transmitter comprises an input power calculation section (16) for calculating mean input power of each carrier, an output power calculating section (17) for calculating mean output power of each carrier after the carrier band is limited, a monitoring section (18) for identifying a carrier having the maximum mean input power, acquiring the maximum value, acquiring the mean output power of the identified carrier, determining the ratio of the mean input power to the mean output power, and calculating level control information which is the ratio of the ratio determined above to a predetermined expected value, and a signal level adjusting section (15) for adjusting the level of a multicarrier signal by multiplying the level control information outputted from the monitoring section (18).
摘要翻译：一种发射机，用于根据载波电平的变化平均地抑制放大器输入电平的变化。发射机包括用于计算每个载波的平均输入功率的输入功率计算部分（16），用于在载波频带被限制之后计算每个载波的平均输出功率的输出功率计算部分（17），用于识别具有最大平均输入功率的载波，获取最大值，获取所识别的载波的平均输出功率，确定平均输入功率与平均输出功率的比率，以及计算作为平均输入功率的比率的电平控制信息以及用于通过乘以从监视部分（18）输出的电平控制信息来调整多载波信号的电平的信号电平调节部分（15）。

3. 发明授权

US07489907B2 Transmitter for suppressing a variation in input level of a multicarrier signal 有权
标题翻译：用于抑制多载波信号的输入电平变化的发射器
公开(公告)号：US07489907B2
公开(公告)日：2009-02-10
申请号：US10532338
申请日：2003-10-20
申请人： Norio Hasegawa , Tetsuhiko Miyatani , Hisashi Kawai , Masami Yoshida , Jun Watanabe
发明人： Norio Hasegawa , Tetsuhiko Miyatani , Hisashi Kawai , Masami Yoshida , Jun Watanabe
IPC分类号： H04B1/00 , H04B7/00
CPC分类号： H04L27/2614
摘要： A transmitter for averagedly suppressing the variation in input level of an amplifier according to variation in carrier level. The transmitter includes an input power calculation section for calculating mean input power of each carrier, an output power calculating section for calculating mean output power of each carrier after the carrier band is limited, a monitoring section for identifying a carrier having the maximum mean input power, acquiring the maximum value, acquiring the mean output power of the identified carrier, determining the ratio of the mean input power to the mean output power, and calculating level control information which is the ratio of the ratio determined above to a predetermined expected value, and a signal level adjusting section for adjusting the level of a multicarrier signal by multiplying the level control information outputted from the monitoring section.
摘要翻译：一种发射机，用于根据载波电平的变化平均地抑制放大器输入电平的变化。发送机包括用于计算每个载波的平均输入功率的输入功率计算部分，用于在载波频带被限制之后计算每个载波的平均输出功率的输出功率计算部分，用于识别具有最大平均输入功率的载波的监视部分获取所述最大值，获取所识别的载波的平均输出功率，确定所述平均输入功率与所述平均输出功率的比率，以及计算作为上述确定的比率与预定期望值的比率的电平控制信息，以及信号电平调整部分，用于通过将从监视部分输出的电平控制信息相乘来调节多载波信号的电平。

4. 发明授权

US06553083B1 Frequency control and orthogonal detection circuit and FSK receiver 有权
标题翻译：频率控制和正交检测电路和FSK接收机
公开(公告)号：US06553083B1
公开(公告)日：2003-04-22
申请号：US09258306
申请日：1999-02-26
申请人： Hisashi Kawai
发明人： Hisashi Kawai
IPC分类号： H04L2706
CPC分类号： H04L27/1525 , H04L2027/0057 , H04L2027/0067
摘要： The present invention is a frequency control and orthogonal detection circuit and a FSK receiver capable of reducing a circuit size and control of VCO appropriately. The orthogonal detection circuit and the FSK receiver of the present invention include a delay circuit, a decoder for decoding the direction of rotation, and a first integral electric discharging circuit to detect the direction of rotation of the signal point of a signal received. There is also a second delay circuit, an XOR circuit, an adder, and a second integral electric discharging circuit to detect a rotation of the signal point of a signal received. The decision circuit decides a symbol on the basis of them. The AFC circuit controls the frequency of a signal outputted by the VCO in comparison with an ideal signal outputted by the standardizing circuit.
摘要翻译：本发明是能够适当地减小VCO的电路尺寸和控制的频率控制和正交检测电路和FSK接收机。本发明的正交检测电路和FSK接收机包括延迟电路，用于解码旋转方向的解码器和用于检测所接收的信号的信号点的旋转方向的第一积分放电电路。还有第二延迟电路，XOR电路，加法器和第二积分放电电路，用于检测所接收的信号的信号点的旋转。决策电路根据它们决定一个符号。与标准化电路输出的理想信号相比，AFC电路控制VCO输出的信号的频率。

5. 发明授权

US5479203A Video camera apparatus with zoom control based on the pan or tilt operation 失效
标题翻译：基于平移或倾斜操作的变焦控制的摄像机设备
公开(公告)号：US5479203A
公开(公告)日：1995-12-26
申请号：US46073
申请日：1993-04-12
申请人： Hisashi Kawai , Masami Kojima , Eiichi Sato
发明人： Hisashi Kawai , Masami Kojima , Eiichi Sato
IPC分类号： G03B13/12 , H04N5/222 , H04N5/232 , H04N7/15 , H04N7/18
CPC分类号： H04N7/15 , H04N5/232 , H04N7/183
摘要： A video camera apparatus for a video conference is arranged to detect the zoom level of a zoom lens by a zoom level detecting circuit and to control a motor control circuit according to the result of detection in such a way as to lower the speed of a panning or tilting operation on a video camera accordingly as the position of the zoom lens shifts from a wide-angle position to a telephoto position. In panning or tilting the video camera in a zoom-in state, this arrangement makes the panning or tilting speed lower than the speed of panning or tilting performed in a zoom-back state, so that the movement of objects on a picture displayed on a monitor can be effectively moderated to make the details of the display easily discernible without any unpleasant impression. The arrangement thus facilitates the operation on the video camera.
摘要翻译：用于视频会议的摄像机装置被布置成通过变焦级别检测电路来检测变焦镜头的变焦级别，并根据检测结果来控制电动机控制电路，以便降低平移速度或者随着变焦镜头的位置从广角位置移动到长焦位置，在摄像机上进行倾斜操作。在以放大状态平移或倾斜摄像机的情况下，这种布置使摇摄或倾斜速度低于在缩放状态下执行的平移或倾斜的速度，使得物体在显示在显示器可以有效地调节，使显示的细节容易辨别，没有任何不愉快的印象。因此，该装置便于在摄像机上的操作。

6. 发明申请

US20060109387A1 Display apparatus and its lamp-lighting mechanism 有权
标题翻译：显示装置及其灯光照明机构
公开(公告)号：US20060109387A1
公开(公告)日：2006-05-25
申请号：US11267637
申请日：2005-11-04
申请人： Hisashi Kawai
发明人： Hisashi Kawai
IPC分类号： H04N3/26
CPC分类号： H04N5/74 , H04N5/7441
摘要： At least one exemplary embodiment is directed to a projection-type image display apparatus in which a wrong operation caused by noise occurring during lighting a light source lamp is reduced by prohibiting a read and/or write operation for at least a part of a period up to lighting the light source lamp.
摘要翻译：至少一个示例性实施例涉及一种投影型图像显示装置，其中通过在至少一段时间段内禁止读取和/或写入操作来减少在照明光源灯期间发生的噪声引起的错误操作照亮光源灯。

7. 发明授权

US07020181B2 Code division multiple access receiver 失效
公开(公告)号：US07020181B2
公开(公告)日：2006-03-28
申请号：US09984744
申请日：2001-10-31
申请人： Hisashi Kawai
发明人： Hisashi Kawai
IPC分类号： H04B1/69
CPC分类号： H04B1/7115
摘要： The present invention provides a code division multiple access receiver which can maintain the accuracy of the result of demodulation of a received signal at a good level without increasing the scale of circuits and the amount of computation.In the code division multiple access receiver, a control section 14 outputs amplitude-adjusting signals corresponding to the reception level of a received base band signal to an amplitude-adjusting section 20, and the amplitude-adjusting section 20 performs bit operation processes for removing invalid bit data from the complex correlation results of the received base band signal based on the amplitude-adjusting signals.

8. 发明授权

US5818616A Optical communication apparatus and conference system 失效
标题翻译：光通信设备和会议系统
公开(公告)号：US5818616A
公开(公告)日：1998-10-06
申请号：US661418
申请日：1996-06-07
申请人： Hisashi Kawai
发明人： Hisashi Kawai
IPC分类号： G06F3/033 , G06F3/038 , G06F3/041 , H04B10/10 , H04J14/02
CPC分类号： G06F3/038 , G06F3/033 , G06F3/041 , H04B10/1149 , H04J14/0298
摘要： In a conference system of the present invention, a terminal modulates a sound signal taken by a micro-phone which is connected to the terminal, a coordinate information signal which is designated using a digitizer, and a video signal. The terminal converts the modulated signals to an optical signal by frequency multiplexing, and send the optical signal to the central device of the system. After the central device receives the optical signal, the device separates and extracts a sound signal, a coordinate signal, and a video signal from the optical signal. Each of these separated signals is sent to a corresponding demodulating circuit to be demodulated, outputted as sound or an image afterwards. Further, the coordinate information signal is processed, for instance, as a command data from a conference attendant.
摘要翻译：在本发明的会议系统中，终端调制与终端连接的微型电话取得的声音信号，使用数字化仪指定的坐标信息信号和视频信号。终端通过频率复用将调制信号转换为光信号，并将光信号发送到系统的中央设备。在中央设备接收到光信号之后，设备从光信号中分离并提取声音信号，坐标信号和视频信号。将这些分离的信号中的每一个发送到相应的解调电路以进行解调，然后输出为声音或图像。此外，坐标信息信号例如作为来自会议服务员的命令数据被处理。

9. 发明授权

US5194964A Apparatus for processing color or black and white video signals 失效
标题翻译：用于处理彩色或黑白视频信号的设备
公开(公告)号：US5194964A
公开(公告)日：1993-03-16
申请号：US879715
申请日：1992-05-06
申请人： Hisashi Kawai
发明人： Hisashi Kawai
IPC分类号： H04N9/81 , H04N9/87
CPC分类号： H04N9/81 , H04N9/87
摘要： A video-signal output apparatus according to the present invention is an apparatus for outputting a black-and-white video signal. The video-signal output apparatus is arranged to generate a black-and-white video signal, add a burst signal to the black-and-white video signal, and output the black-and-white video signal with the burst signal added thereto. Accordingly, a black-and-white picture with no cross color can be displayed on a color monitor device.
摘要翻译：根据本发明的视频信号输出装置是用于输出黑白视频信号的装置。视频信号输出装置被配置为产生黑白视频信号，将黑白信号添加到黑白视频信号，并输出黑白视频信号与其中添加的突发信号。因此，可以在彩色监视器装置上显示不具有交叉色的黑白图像。

10. 发明申请

US20070281643A1 Radio communication system and overhang station apparatus 失效
标题翻译：无线通信系统和突出站设备
公开(公告)号：US20070281643A1
公开(公告)日：2007-12-06
申请号：US11806227
申请日：2007-05-30
申请人： Hisashi Kawai
发明人： Hisashi Kawai
IPC分类号： H04B1/18
CPC分类号： H04B1/0483 , H04W56/0045
摘要： Delay time in a signal transmitted between nodes in daisy chain connection is accurately compensated. A TRX amplifier measures phase difference between a UL frame received from a downstream chain, and a UL frame to be sent out to an upstream chain, and reports the phase difference to a base transceiver station. The base transceiver station calculates advance amount to be set to a downstream TRX amplifier based on the reported phase difference. The TRX amplifier adjusts phase difference between a DL frame received from an upstream chain, and the UL frame to be sent out to the upstream chain depending on the advance amount.
摘要翻译：在菊花链连接节点之间传输的信号中的延迟时间被准确地补偿。 TRX放大器测量从下游链接的UL帧与要发送到上行链路的UL帧之间的相位差，并将相位差报告给基站。基站收发器基于报告的相位差计算要设置到下游TRX放大器的提前量。 TRX放大器根据提前量调节从上游链接的DL帧与要发送到上游链的UL帧之间的相位差。

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