公开(公告)号：US06263201B1

公开(公告)日：2001-07-17

申请号：US08997672

申请日：1997-12-24

申请人： Hideki Hashimoto ,  Isao Okazaki ,  Kazuhiko Seki

发明人： Hideki Hashimoto ,  Isao Okazaki ,  Kazuhiko Seki

IPC分类号： H04Q720

CPC分类号： H04W84/022 ,  H04L29/06 ,  H04L67/28 ,  H04L67/2823 ,  H04L67/325 ,  H04L69/329

摘要： This invention makes it possible to link separately employed pagers, PHS, and other data terminals with computer networks such as the Internet, and to schedule transfer of data to the data terminals. In a system for transferring message to pagers from user terminals connected to the Internet, a user terminal indicates to a transmission server the time for message transfer, and the transmission server, using a code conversion table, converts the message to the code adapted to the particular pager service provider and pager terminal, and transmits the message to the pager terminal at the indicated time.

摘要翻译： 本发明使得可以将单独使用的寻呼机，PHS和其他数据终端与诸如因特网之类的计算机网络链接，并且将数据传送到数据终端。 在用于从连接到因特网的用户终端向寻呼机传送消息的系统中，用户终端向传输服务器指示消息传送的时间，并且传输服务器使用代码转换表将该消息转换为适于 特定寻呼机服务提供商和寻呼机终端，并在指示的时间将该消息发送到寻呼机终端。

公开(公告)号：US6084861A

公开(公告)日：2000-07-04

申请号：US854209

申请日：1997-05-09

申请人： Shuzo Kato ,  Kazuhiko Seki ,  Hiep Van Pham

发明人： Shuzo Kato ,  Kazuhiko Seki ,  Hiep Van Pham

IPC分类号： H04L5/16 ,  H04B7/26 ,  H04J3/00 ,  H04J3/16

CPC分类号： H04B7/2659 ,  H04J3/1694

摘要： A radio communication system in which each frame having an imbalanced transmission speed is time-divided to a low speed transmission area and to a high speed transmission area according to a specified ratio in the time domain. An upload signal as a first-directional signal and a download signal as a second-directional signal are allocated to the low speed transmission area and to the high speed transmission area respectively. In a case where a high speed transmission request is issued from a personal station (PS) to a base station (BS), the order of the upload signal and that of the download signal is exchanged in the time domain within one frame, so that the download signal and the upload signal are allocated to the low speed transmission area and the high speed transmission area respectively.

摘要翻译： 一种无线电通信系统，其中具有不平衡传输速度的每个帧根据时域中的指定比例被分时地分为低速传输区域和高速传输区域。 作为第一方向信号的上传信号和作为第二方向信号的下载信号分别被分配给低速传输区域和高速传输区域。 在从个人站（PS）到基站（BS）发出高速传输请求的情况下，在一帧内在时域中交换上载信号和下载信号的顺序，使得 下载信号和上传信号分别分配给低速传输区域和高速传输区域。

公开(公告)号：US5974096A

公开(公告)日：1999-10-26

申请号：US855584

申请日：1997-05-13

申请人： Kazuhiko Seki ,  Takayoshi Kaneko

发明人： Kazuhiko Seki ,  Takayoshi Kaneko

IPC分类号： H04L27/22 ,  H04L27/233 ,  H03D1/00

CPC分类号： H04L27/2332

摘要： An object is to provide a digital quadrature detection circuit wherein, without making the circuit complicated and without lowering performance, the operating frequency can be lowered and power consumption can be reduced. There are provided: a quasi-synchronous detector that takes the exclusive logical sum of a binary-converted intermediate frequency signal and a carrier signal, sampling means that respectively sample the output of the quasi-synchronous detector at M phases (where M is an integer of 1 or more) for each symbol, a bit adder that generates an M-bit parallel signal from the output signals of these, and low-pass filters that extract the low frequency components from this output. Whereas conventionally a 100-times clock pulse was employed in order to obtain an M-bit parallel signal, in this case, a 20-times clock pulse is sufficient, due to the provision of five sampling means.

摘要翻译： 目的是提供一种数字正交检测电路，其中，在不使电路复杂且不降低性能的情况下，可以降低工作频率并降低功耗。 提供：准同步检波器，其采用二进制转换的中频信号和载波信号的异或逻辑和，采样装置分别在M个相位对准同步检波器的输出进行采样（其中M是整数 对于每个符号来说，一个位加法器从这些的输出信号产生M位并行信号，以及从该输出提取低频分量的低通滤波器。 传统上采用100倍时钟脉冲以获得M位并行信号，在这种情况下，由于提供五个采样装置，所以20倍的时钟脉冲是足够的。

公开(公告)号：US08091767B2

公开(公告)日：2012-01-10

申请号：US12702514

申请日：2010-02-09

申请人： Kazuhiko Seki ,  Hideo Matsubayashi ,  Makoto Shimizu

发明人： Kazuhiko Seki ,  Hideo Matsubayashi ,  Makoto Shimizu

IPC分类号： B23K35/12

CPC分类号： H05K3/3478 ,  H01L21/4853 ,  H05K2203/0195 ,  H05K2203/041 ,  H05K2203/082 ,  Y10T428/12396

摘要： A substrate manufacturing apparatus manufactures a ball-mounted substrate and has a ball mounting apparatus which includes a ball vacuum chucking apparatus including a vacuum chucking head that carries out a vacuum chucking process to chuck balls at edges of inlets formed in a vacuum chucking surface and which mounts the balls vacuum-chucked by the vacuum chucking head on a substrate, the ball vacuum chucking apparatus further including: a holding vessel that holds the balls; and a vacuum chucking/holding unit that vacuum chucks and holds the balls held in the holding vessel on a front end thereof, and carrying out a supplying process that brings the vacuum chucking/holding unit that holds the balls on the front end thereof and the vacuum chucking surface of the vacuum chucking head relatively close to supply the balls to the vacuum chucking head while air is being drawn through the inlets.

摘要翻译： 一种基板制造装置制造球形安装基板，并且具有球安装装置，其包括：球真空夹紧装置，其包括真空夹紧头，该真空夹紧头执行真空夹紧工艺以在真空夹持表面中形成的入口的边缘处夹持球，并且 将由真空吸盘头真空夹持的球安装在基板上，球真空夹紧装置还包括：保持容器，其保持滚珠; 以及真空夹持单元，其真空夹持保持在保持容器中的球的前端，并且进行将保持球的真空夹持单元保持在其前端的供给处理， 真空吸盘头的真空吸附表面相对接近地将球提供给真空夹头，同时空气被吸入入口。

公开(公告)号：US06889184B2

公开(公告)日：2005-05-03

申请号：US09739225

申请日：2000-12-19

申请人： Masato Tanaka ,  Meizhong Wang ,  Kazuhiko Seki

发明人： Masato Tanaka ,  Meizhong Wang ,  Kazuhiko Seki

IPC分类号： G10L19/00 ,  G11B20/10 ,  G11B20/18 ,  H03M3/00 ,  H04B14/04

CPC分类号： G10L19/005 ,  G11B20/10527 ,  G11B20/1806

摘要： Provided is a code correction circuit for presuming an error pattern of the received code when a received ADPCM code contains a click noise and correcting such error. A device for improving voice signal comprises a click noise detector (13) which judges that a received ADPCM code contains a click noise when a short interval average value of the absolute value of the received ADPCM code exceeds a predetermined value, and a code correction circuit (11) which presumes an error position of the bit of the received ADPCM code and corrects such error so as to minimize the variation in the short interval average value of the absolute value of the received ADPCM code when a transmission error is generated in the receiving ADPCM code judged to be containing a click noise.

摘要翻译： 提供了一种代码校正电路，用于当接收到的ADPCM代码包含点击噪声并且校正这种错误时，假定接收到的代码的错误模式。 一种用于改善语音信号的装置包括一个咔嗒声噪声检测器（13），当所接收的ADPCM码的绝对值的短间隔平均值超过预定值时，该点击噪声检测器（13）判定所接收的ADPCM码包含一个咔嗒声噪声，以及一个码校正电路 （11），其假设接收到的ADPCM码的位的错误位置并校正这种误差，以便在接收到的发送错误时产生接收到的ADPCM码的绝对值的短间隔平均值的变化最小化 ADPCM代码被判断为包含点击噪声。

公开(公告)号：US6160838A

公开(公告)日：2000-12-12

申请号：US987024

申请日：1997-12-09

申请人： Yoshinori Shinohara ,  Kazuhiko Seki

发明人： Yoshinori Shinohara ,  Kazuhiko Seki

IPC分类号： H04B1/707 ,  H04B15/00 ,  H04K1/00 ,  H04L27/30

CPC分类号： H04B1/707 ,  H04B1/709

摘要： A spread spectrum transmitter and receiver are provided wherein data can be accurately decoded by removing the effect of mutual interference of the quadrature component and in-phase component even when there is carrier frequency error. In a method of spread spectrum communication using a QPSK modulation system, there are provided: a demodulating circuit that receives and demodulates a signal transmitted with a prescribed time difference Td applied between the IQ components; correlators that find the mutual correlation of the IQ components and spreading code; a sampling circuit that samples their output signals; a phase calculator that calculates the phase from the ratio of the IQ components of these output signals; a differential decoding circuit that performs differential decoding on this output signal; an automatic frequency control circuit that corrects the frequency error of this output signal; a decoding circuit; and a clock recovery circuit.

摘要翻译： 提供了一种扩频发射机和接收机，其中即使存在载波频率误差，也可以通过消除正交分量和同相分量的相互干扰的影响来准确地解码数据。 在使用QPSK调制方式的扩频通信方法中，提供：解调电路，接收并解调以IQ分量之间施加的规定时间差Td发送的信号; 发现IQ分量和扩展码的相互关系的相关器; 采样电路，对其输出信号进行采样; 相位计算器，根据这些输出信号的IQ分量的比率来计算相位; 对该输出信号执行差分解码的差分解码电路; 自动频率控制电路，用于校正该输出信号的频率误差; 解码电路; 和时钟恢复电路。

公开(公告)号：US6061366A

公开(公告)日：2000-05-09

申请号：US835396

申请日：1997-04-07

申请人： Kazuhiko Seki ,  Hideki Kato

发明人： Kazuhiko Seki ,  Hideki Kato

IPC分类号： H04L29/08 ,  H04L29/06 ,  H04J3/18

CPC分类号： H04L69/04

摘要： The present invention allows efficient data compression when the contents of the control fields of packets are the same. An identity flag is substituted for a control field when the control field of an already-transmitted packet signal is identical to the control field of a packet signal which is to be newly transmitted. When non-identical, a non-identity flag is inserted to the control field. Thus, by using a larger number of small data format when identical control fields are transmitted consecutively, the data length of the control fields can be shortened.

摘要翻译： 当分组的控制字段的内容相同时，本发明允许高效的数据压缩。 当已经发送的分组信号的控制字段与要发送的分组信号的控制字段相同时，将标识标志替换为控制字段。 当不相同时，将非标识标志插入控制字段。 因此，当连续发送相同的控制字段时，通过使用较大数量的小数据格式，可以缩短控制字段的数据长度。

公开(公告)号：US4691028A

公开(公告)日：1987-09-01

申请号：US855105

申请日：1986-04-23

申请人： Hiroo Inokuchi ,  Gunji Saito ,  Kazuhiko Seki ,  Takehiko Mori

发明人： Hiroo Inokuchi ,  Gunji Saito ,  Kazuhiko Seki ,  Takehiko Mori

IPC分类号： C07D339/06 ,  C07D343/00 ,  C07D345/00 ,  H01B1/12 ,  H01L39/12 ,  C07D317/32 ,  C07D327/04

CPC分类号： H01B1/121 ,  C07D339/06 ,  C07D343/00 ,  C07D345/00 ,  H01L39/121

摘要： A fulvalene derivative represented by formula (1) below. ##STR1## where A.sup.1 -A.sup.8 are at least one atom or a combination of two or more atoms selected from S atom, Se atom, and Te atom; and R.sup.1 -R.sup.4 are alkyl or alkene having 3 to 22 carbon atoms.The fulvalene derivative of this invention has electric conductivity as it is at normal temperature and under normal pressure. It is useful as a semiconductor, which has an electrical conductance greater than 10.sup.-9 Scm.sup.-1 and a minimum specific resistance of 10.sup.5 .OMEGA..multidot.cm order.

摘要翻译： 由下式（1）表示的富瓦烯衍生物。 （1）其中A1-A8是选自S原子，Se原子和Te原子的至少一个原子或两个或更多个原子的组合; 和R 1 -R 4是具有3至22个碳原子的烷基或烯烃。 本发明的富瓦烯衍生物在常温常压下具有导电性。 它作为半导体是有用的，其半导体电导率大于10-9 Scm-1，最小电阻为105欧米伽x厘米。

公开(公告)号：US08204162B2

公开(公告)日：2012-06-19

申请号：US12209677

申请日：2008-09-12

申请人： Kazuhiko Seki ,  Takashi Taya

发明人： Kazuhiko Seki ,  Takashi Taya

IPC分类号： H04L27/06

CPC分类号： H04L27/152

摘要： The present invention aims to provide a reception frequency control circuit that is small in mounting area and unaffected by disturbance where an FSK-modulated signal is demodulated. In the reception frequency control circuit, a reception signal processing unit converts an FSK-modulated digital signal to an intermediate frequency when the FSK-modulated digital signal is received. Thereafter, a frequency voltage converting unit converts the intermediate signal to a voltage signal and outputs an output signal. At the same time, an analog frequency controlling unit detects a frequency deviation from the output signal by analog processing. A digital frequency controlling unit generates a reception frequency control signal for correcting the frequency and feeds back the same to the reception signal processing unit. Stable frequency control can be realized by performing reception frequency control by a combination of an analog circuit-digital circuit in this way.

摘要翻译： 本发明的目的是提供一种接收频率控制电路，该接收频率控制电路的安装面积小，并且不受FSK调制信号的解调的干扰影响。 在接收频率控制电路中，当FSK调制数字信号被接收时，接收信号处理单元将FSK调制数字信号转换为中频。 此后，频率电压转换单元将中间信号转换为电压信号并输出​​输出信号。 同时，模拟频率控制单元通过模拟处理检测与输出信号的频率偏差。 数字频率控制单元产生用于校正频率的接收频率控制信号，并将其反馈到接收信号处理单元。 可以通过以这种方式通过模拟电路数字电路的组合执行接收频率控制来实现稳定的频率控制。

公开(公告)号：US5859875A

公开(公告)日：1999-01-12

申请号：US789237

申请日：1997-01-28

申请人： Hideki Kato ,  Shinichi Yamazaki ,  Hideaki Ugawa ,  Kazuhiko Seki

发明人： Hideki Kato ,  Shinichi Yamazaki ,  Hideaki Ugawa ,  Kazuhiko Seki

IPC分类号： H04B1/707 ,  H04B7/02 ,  H04B7/04 ,  H04B7/06 ,  H04J13/16 ,  H04L1/08

CPC分类号： H04B7/0697 ,  H04B7/04 ,  H04B7/0689 ,  H04L1/08

摘要： Transmission mode selection is enabled, so communication reliability, transmission speed, and equipment utilization efficiency are all high. A first transmission system whereby spectrum spreading is accomplished with a spread code 1 and data is transmitted, and a second transmission system whereby data is transmitted with a spread code 2, are provided. In high-reliability transmission mode, identical data from a data buffer is transmitted through both the first and second transmission systems to achieve space diversity. In high-speed mode, data divided by a data division circuit is transmitted simultaneously through the first and second transmission systems, making possible efficient data transfer. Control information insertion circuits append transmission mode data to the transmitted data.

摘要翻译： 传输模式选择使能，所以通信可靠性，传输速度和设备利用效率都很高。 提供了利用扩展码1进行频谱扩展的第一传输系统，并且发送数据，并且提供了利用扩展码2发送数据的第二传输系统。 在高可靠性传输模式中，来自数据缓冲器的相同数据通过第一和第二传输系统传输，以实现空间分集。 在高速模式中，通过第一和第二传输系统同时发送由数据分割电路划分的数据，从而使得可能的数据传输成为可能。 控制信息插入电路将发送模式数据附加到所发送的数据。