公开(公告)号：US5694422A

公开(公告)日：1997-12-02

申请号：US688678

申请日：1996-07-29

申请人： Takashi Kaku ,  Hideo Miyazawa

发明人： Takashi Kaku ,  Hideo Miyazawa

IPC分类号： H04B3/14 ,  H04L25/03

CPC分类号： H04B3/142 ,  H04L25/03146

摘要： A fixed equalizer and a fixed equalization method compensates for amplitude distortion, delay distortion, etc., of a signal transmitted over a transmission line. A processor unit carries out filtering process, such as amplitude equalization, delay equalization, line equalization, etc., in accordance with parameters read from a memory. In view of the fact that amplitude equalization process can be achieved by a combination of a highpass filter and a lowpass filter and line equalization process can be achieved by a filter having an attenuating characteristic which is negative at low frequencies and positive at high frequencies, the present invention stores parameters providing a characteristic corresponding to the synthesis of the characteristics of such filters in the memory and performs filtering computation on the basis of the parameters.

摘要翻译： 固定均衡器和固定均衡方法补偿通过传输线传输的信号的幅度失真，延迟失真等。 处理器单元根据从存储器读取的参数进行诸如幅度均衡，延迟均衡，线路均衡等滤波处理。 考虑到可以通过高通滤波器和低通滤波器的组合来实现振幅均衡处理，并且线路均衡处理可以通过具有衰减特性的滤波器来实现，该衰减特性在低频处为负，在高频为正， 本发明存储提供与存储器中的这种滤波器的特性的合成相对应的特性的参数，并且基于参数执行滤波计算。

公开(公告)号：US5650953A

公开(公告)日：1997-07-22

申请号：US468186

申请日：1995-06-06

申请人： Takashi Kaku ,  Hideo Miyazawa

发明人： Takashi Kaku ,  Hideo Miyazawa

IPC分类号： H04L27/00 ,  G06F7/48 ,  G06F7/552 ,  G06F17/10 ,  H04M11/00

CPC分类号： G06F7/5525 ,  G06F17/10 ,  G06F7/4806 ,  G06F7/552 ,  G06F2207/5521 ,  G06F2207/5525

摘要： The level of the input vector signal (X+jY) is reduced to (X+jY)/.sqroot.2 in the overflow preventing circuit. A power arithmetic operating circuit squares the level-down input vector signal, to obtain a power value (X.sup.2 +Y.sup.2)/2. The initial value of the tap value (K) which is finally set to a reciprocal number value is multiplied two times by a multiplying circuit, thereby obtaining K.sup.2 (X+Y).sup.2 /2. Further, a differential circuit obtains an error signal (.DELTA.K)=1/2-K.sup.2 (X.sup.2 +Y.sup.2)/2 with a reference. An updating circuit updates the tap value (K) so that the error signal (.DELTA.K) is equal to 0. A loop arithmetic operation of the multiplication of the tap value, differential arithmetic operation, and updating of the tap value is repeated until the error signal (.DELTA.K) is converged to a predetermined value or less. The tap value (K) when it was converged is obtained as a reciprocal number value 1/.sqroot.(X.sup.2 +Y.sup.2) of the amplitude of the input vector signal.

摘要翻译： 在溢出防止电路中，输入矢量信号（X + jY）的电平减小到（X + jY）/ 2ROOT2。 功率算术运算电路使电平降低输入矢量信号平方，以获得功率值（X2 + Y2）/ 2。 将最终设定为倒数的抽头值（K）的初始值乘以乘法电路两次，从而得到K2（X + Y）2/2。 此外，差分电路获得参考的误差信号（DELTA K）= 1/2-K2（X2 + Y2）/ 2。 更新电路更新抽头值（K），使得误差信号（DELTA K）等于0.重复抽头值，微分算术运算和抽头值的更新的相乘的循环算术运算，直到 误差信号（DELTA K）收敛到预定值或更小。 获得收敛时的抽头值（K）作为输入矢量信号的幅度的倒数值1 / 2ROOT（X2 + Y2）。

公开(公告)号：US5598434A

公开(公告)日：1997-01-28

申请号：US524835

申请日：1995-09-07

申请人： Takashi Kaku ,  Ryoji Okita ,  Hideo Miyazawa

发明人： Takashi Kaku ,  Ryoji Okita ,  Hideo Miyazawa

IPC分类号： H04B3/10 ,  H03H21/00 ,  H04L25/03 ,  H03H7/30

CPC分类号： H04L25/03038

摘要： The invention provides an automatic equalizer which can keep, even where it is employed for a modem which has a very large number of taps, a high degree of accuracy in error correction of tap coefficients and can obtain an equalized signal with a high degree of accuracy. The automatic equalizer includes an equalization calculation section including a plurality of delaying sections, a tap coefficient multiplication section and a totaling calculation section, a tap coefficient error correction section for correcting errors of tap coefficients for the equalization calculation section based on an input to the automatic equalizer and an output of the automatic equalizer, and an input level setting section for setting an input signal level to the equalization calculation section and an input signal level to the tap coefficient error correction section to levels different from each other.

摘要翻译： 本发明提供了一种自动均衡器，即使在采用具有非常大数量的抽头的调制解调器的情况下也可以保持高精度的抽头系数的纠错，并且可以以高精度获得均衡的信号 。 自动均衡器包括均衡计算部分，包括多个延迟部分，抽头系数乘法部分和总计算部分，抽头系数误差校正部分，用于根据对自动均衡计算部分的输入来校正均衡计算部分的抽头系数的误差 均衡器和自动均衡器的输出;以及输入电平设置部分，用于将均衡计算部分的输入信号电平和对抽头系数误差校正部分的输入信号电平设置为彼此不同。

公开(公告)号：US5537437A

公开(公告)日：1996-07-16

申请号：US505479

申请日：1995-07-21

申请人： Takashi Kaku ,  Hiroyasu Murata ,  Noboru Kawada ,  Kyoko Hirao ,  Hideo Miyazawa ,  Yuri Nigaki

发明人： Takashi Kaku ,  Hiroyasu Murata ,  Noboru Kawada ,  Kyoko Hirao ,  Hideo Miyazawa ,  Yuri Nigaki

IPC分类号： H04B3/10 ,  H04L7/04 ,  H04L27/01 ,  H04L27/22 ,  H03H7/30

CPC分类号： H04L7/041 ,  H04L7/046

摘要： A modulation and demodulation system suitable for use with a modem (modulator and demodulator apparatus) of a first polling type. The system allows reproduction of a signal necessary for initialization of a reception section of a modulator and demodulator apparatus with certainty in a short training time. The modulation and demodulation system is constructed such that, upon transmission of data, training data of a particular pattern are modulated and transmitted prior to transmission of the data, and such training data are demodulated by demodulation means and initialization of a reception section of the modulation and demodulation system is performed using the demodulation training data. The pattern of the training data to be transmitted includes an arrangement of signals wherein signals having phases different by 180.degree. from each other are arranged alternately, and a signal having the same phase as the last signal is arranged intermediately.

摘要翻译： 适用于第一轮询类型的调制解调器（调制器和解调器装置）的调制和解调系统。 该系统允许在短时间内确定地再现调制器和解调器装置的接收部分的初始化所需的信号。 调制和解调系统被构造成使得在传输数据时，在传输数据之前对特定模式的训练数据进行调制和发送，并且这样的训练数据由解调装置解调并且调制的接收部分的初始化 并且使用解调训练数据执行解调系统。 要发送的训练数据的模式包括信号的布置，其中具有彼此相差180°的相位的信号交替布置，并且具有与最后信号相同相位的信号被布置在中间。

公开(公告)号：US08199512B2

公开(公告)日：2012-06-12

申请号：US12507107

申请日：2009-07-22

申请人： Koichi Kiryu ,  Hideo Miyazawa

发明人： Koichi Kiryu ,  Hideo Miyazawa

IPC分类号： H05K1/14

CPC分类号： H01R27/02 ,  H01R12/714 ,  H01R13/665 ,  H01R13/703

摘要： A memory card connector, which is mounted on a printed circuit board, includes a radio-communication module, and a card slot arranged with input/output terminals that are connected to the printed circuit board. In the memory card connector, input/output terminals of the radio-communication module are arranged to join the input/output terminals of the card slot, such that the radio-communication module enables the printed circuit board to access an external device via radio communication in a manner equivalent to a manner when the printed circuit board accesses a memory card attached to the card slot.

摘要翻译： 安装在印刷电路板上的存储卡连接器包括无线电通信模块和布置有连接到印刷电路板的输入/输出端子的卡槽。 在存储卡连接器中，无线电通信模块的输入/输出端子被布置成连接卡槽的输入/输出端子，使得无线电通信模块使得印刷电路板能够经由无线电通信 以等同于印刷电路板访问附接到卡槽的存储卡的方式。

公开(公告)号：US07967632B2

公开(公告)日：2011-06-28

申请号：US12578679

申请日：2009-10-14

申请人： Koichi Kiryu ,  Hideo Miyazawa

发明人： Koichi Kiryu ,  Hideo Miyazawa

IPC分类号： H01R13/60

CPC分类号： H01R13/701 ,  G06K7/0021 ,  H01R12/721 ,  H01R13/502 ,  H01R13/6581 ,  H01R27/00

摘要： A card connector includes a base housing configured to allow attachment of different kinds of memory cards; multiple kinds of memory card contacts held in the base housing and configured to connect to the corresponding memory cards; a module housing stacked on the base housing and configured to allow attachment of an expansion module; and a module contact configured to connect to the expansion module. The memory card contacts and the module contact are electrically separated.

摘要翻译： 卡连接器包括配置成允许不同种类的存储卡的附接的基座壳体; 多种存储卡触点保持在基座外壳中并配置成连接到相应的存储卡; 模块外壳，其堆叠在所述基座壳体上并且被配置为允许扩展模块的附接; 以及被配置为连接到所述扩展模块的模块触点。 存储卡触点和模块触点电气分离。

公开(公告)号：US20110050263A1

公开(公告)日：2011-03-03

申请号：US12870895

申请日：2010-08-30

申请人： Koki Sato ,  Yasuyuki Miki ,  Keita Harada ,  Mitsuru Kobayashi ,  Hideo Miyazawa ,  Koki Takahashi

发明人： Koki Sato ,  Yasuyuki Miki ,  Keita Harada ,  Mitsuru Kobayashi ,  Hideo Miyazawa ,  Koki Takahashi

IPC分类号： G01R1/067 ,  H05K13/00

CPC分类号： H05K13/00 ,  G01R1/067 ,  G01R1/06722 ,  G01R3/00 ,  H01L21/67005 ,  Y10T29/49002 ,  Y10T29/49204

摘要： A probe is made to contact an electrode terminal in an electric circuit or an electronic part for an electric measurement of the electric circuit or the electronic part. The probe includes a terminal portion which is brought in contact with the electrode terminal at one end of the probe, a spring portion in which U-shaped unit portions are arrayed in a zigzag formation, and a housing portion which surrounds the spring portion. The probe is formed of a sheet of a sheet-metal plate which is bent multiple times, the sheet-metal plate having a predetermined configuration in which a portion corresponding to the terminal portion, a portion corresponding to the spring portion, and a portion corresponding to the housing portion are continuously linked together.

摘要翻译： 探针用于接触电路或电子部件中的电极端子，用于电路或电子部件的电测量。 探针包括在探针的一端与电极端子接触的端子部分，其中U形单元部分以锯齿形阵列排列的弹簧部分和围绕弹簧部分的壳体部分。 探针由多次弯曲的片状金属板形成，片状金属板具有预定的构造，其中对应于端子部分的部分，对应于弹簧部分的部分和对应于该部分的部分 连接到壳体部分。

公开(公告)号：US07695289B1

公开(公告)日：2010-04-13

申请号：US12570191

申请日：2009-09-30

申请人： Koki Sato ,  Hideo Miyazawa ,  Tohru Yamakami ,  Kazuhiro Mizukami

发明人： Koki Sato ,  Hideo Miyazawa ,  Tohru Yamakami ,  Kazuhiro Mizukami

IPC分类号： H01R12/00

CPC分类号： H01R12/57 ,  H01R12/714 ,  H01R13/11

摘要： A connector includes a housing and a contact. The contact includes a first part including a first terminal part and a first connection part; a second part including a second terminal part and a second connection part, and a third part including an elastic part having a first end and a second end connected to the first part and the second part, respectively. The first connection part and the second connection part face each other across a gap. The second terminal part is configured to come into press contact with an electrode in response to fixation of the housing to a board. The third part is configured to elastically deform in response to attachment of a plug to the housing and/or the fixation of the housing to the board, so as to cause the first connection part and the second connection part to come into contact and be electrically connected.

摘要翻译： 连接器包括壳体和触点。 触点包括第一部分，包括第一端子部分和第一连接部分; 第二部分包括第二端子部分和第二连接部分，以及第三部分，其包括具有分别与第一部分和第二部分连接的第一端和第二端的弹性部分。 第一连接部分和第二连接部分跨越间隙彼此面对。 第二端子部分被配置为响应于壳体固定到板而与电极进行压力接触。 第三部分被配置为响应于将插头附接到壳体和/或将壳体固定到板而弹性变形，以使第一连接部分和第二连接部分接触并且被电 连接的。

公开(公告)号：US20100033937A1

公开(公告)日：2010-02-11

申请号：US12507107

申请日：2009-07-22

申请人： Koichi Kiryu ,  Hideo Miyazawa

发明人： Koichi Kiryu ,  Hideo Miyazawa

IPC分类号： H05K1/14

CPC分类号： H01R27/02 ,  H01R12/714 ,  H01R13/665 ,  H01R13/703

摘要： A memory card connector, which is mounted on a printed circuit board, includes a radio-communication module, and a card slot arranged with input/output terminals that are connected to the printed circuit board. In the memory card connector, input/output terminals of the radio-communication module are arranged to join the input/output terminals of the card slot, such that the radio-communication module enables the printed circuit board to access an external device via radio communication in a manner equivalent to a manner when the printed circuit board accesses a memory card attached to the card slot.

摘要翻译： 安装在印刷电路板上的存储卡连接器包括无线电通信模块和布置有连接到印刷电路板的输入/输出端子的卡槽。 在存储卡连接器中，无线电通信模块的输入/输出端子被布置成连接卡槽的输入/输出端子，使得无线电通信模块使得印刷电路板能够经由无线电通信 以等同于印刷电路板访问附接到卡槽的存储卡的方式。

公开(公告)号：US20100003851A1

公开(公告)日：2010-01-07

申请号：US12585190

申请日：2009-09-08

申请人： Junichi Akama ,  Hideo Miyazawa ,  Koki Sato ,  Mitsuru Kobayashi

发明人： Junichi Akama ,  Hideo Miyazawa ,  Koki Sato ,  Mitsuru Kobayashi

IPC分类号： H01R9/05

CPC分类号： H01R12/57 ,  H01R12/7047 ,  H01R24/50 ,  H01R2103/00

摘要： A disclosed coaxial connector can be surface-mounted on a circuit board without degradation in signal transmission characteristics. The coaxial connector includes a center conductor, a surrounding conductor by which the center conductor is surrounded, and an insulating housing. The center conductor has a leg portion at its base end. The surrounding conductor has six lugs at its base end that extend radially. The leg portion and the lugs are exposed on a bottom surface of the housing. The coaxial connector is mounted on the circuit board with the leg portion pressed against a signal pad on the circuit board for electrical connection and the lugs pressed against a ground pad for electrical connection.