公开(公告)号：US4216299A

公开(公告)日：1980-08-05

申请号：US847518

申请日：1977-11-01

申请人： Toyoji Kikuga ,  Koji Hirai

发明人： Toyoji Kikuga ,  Koji Hirai

IPC分类号： B41M5/155 ,  C08G8/24 ,  C08L61/06

CPC分类号： C08G8/24 ,  B41M5/155 ,  C08L61/06

摘要： A color developer for pressure-sensitive copying paper is prepared by mixing a polyvalent metal salt of a para-substituted difunctional phenol-aldehyde condensate and a tri- or higher-functional phenol-aldehyde condensate and/or a polyvalent metal modified tri- or higher-functional phenol-aldehyde condensate.

摘要翻译： 用于压敏复印纸的彩色显影剂通过将对位取代的双官能酚醛缩合物的多价金属盐和三官能或更高官能的酚醛缩合物和/或多价金属改性的三元或更高的 官能酚醛缩合物。

公开(公告)号：US08866658B2

公开(公告)日：2014-10-21

申请号：US13529343

申请日：2012-06-21

申请人： Koji Hirai

发明人： Koji Hirai

IPC分类号： H03M1/66 ,  H03M1/68 ,  H03M1/76

CPC分类号： H03M1/682 ,  H03M1/685 ,  H03M1/765

摘要： A resistor string digital-to-analog converter includes a high-order resistor string, first high-order switches, a high-order decoder, a low-order decoder, and a conversion unit. The high-order resistor string includes a plurality of voltage acquisition points that are coupled through unit resistors. The high-order decoder generates a first high-order control signal in accordance with a high-order bit value, and operates in accordance with the first high-order control signal to bring into conduction a first high-order switch coupled to a pair of voltage acquisition points adjacent to each other through one or more voltage acquisition points. The low-order decoder generates a low-order control signal for controlling the conversion unit. The conversion unit divides a pair of high-order analog voltages output from a pair of voltage acquisition points.

摘要翻译： 电阻串数模转换器包括高阶电阻串，第一高阶开关，高阶解码器，低阶解码器和转换单元。 高阶电阻串包括通过单元电阻耦合的多个电压采集点。 高阶解码器根据高位比特值产生第一高阶控制信号，并且根据第一高阶控制信号进行操作以使第一高阶开关耦合到一对 电压采集点通过一个或多个电压采集点彼此相邻。 低阶解码器产生用于控制转换单元的低阶控制信号。 转换单元划分从一对电压获取点输出的一对高阶模拟电压。

公开(公告)号：US08681031B2

公开(公告)日：2014-03-25

申请号：US13397608

申请日：2012-02-15

申请人： Koji Hirai

发明人： Koji Hirai

IPC分类号： H03M1/66

CPC分类号： H03M1/682 ,  G09G3/3688 ,  H03M1/00 ,  H03M1/747 ,  H03M1/765 ,  H03M1/785

摘要： A resistor string type D/A converter includes a higher-order decoder to which a digital signal is input, a higher-order resistor string in which a plurality of resistors and a plurality of voltage drawing points are alternately connected between a first reference voltage and a second reference voltage, the higher-order resistor string being configured to output a plurality of first voltages, each from a respective one of the plurality of voltage drawing points, a plurality of first higher-order switches connected to the plurality of voltage drawing points in a one-to-one configuration, conductive states of the first higher-order switches being controlled based on the digital signal, and a conversion unit that outputs a second voltage based on the plurality of the first voltages supplied through the plurality of first higher-order switches. The higher-order decoder brings two first higher-order switches into conduction based on the digital signal.

摘要翻译： 电阻串型D / A转换器包括输入数字信号的高阶解码器，其中多个电阻器和多个电压绘制点在第一参考电压和第一参考电压之间交替连接的高阶电阻器串 第二参考电压，高阶电阻串被配置为从多个电压绘制点中的相应一个输出多个第一电压，多个第一高阶开关，连接到多个电压绘制点 以一对一配置，基于数字信号控制第一高阶开关的导通状态，以及转换单元，其基于通过多个第一高电平提供的多个第一电压输出第二电压 顺序开关 高阶解码器基于数字信号将两个第一高阶开关导通到导通中。

公开(公告)号：US20120159411A1

公开(公告)日：2012-06-21

申请号：US13315491

申请日：2011-12-09

申请人： Toshitaka Nojima ,  Koji Hirai ,  Shinichi Hama

发明人： Toshitaka Nojima ,  Koji Hirai ,  Shinichi Hama

IPC分类号： G06F17/50

CPC分类号： G06F17/5068

摘要： Layout information indicating a layout of circuits on a print circuit board is obtained. With reference to the layout information, a connection portion, which electrically connects a ground pattern of the print circuit board and an external ground of the print circuit board, is specified, and a pin, which is included in a connector laid out on the print circuit board and is connected to the ground pattern, is identified. Then, a discharge route between the pin and connection portion is determined.

摘要翻译： 获得表示打印电路板上电路布局的布局信息。 参考布局信息，指定电连接印刷电路板的接地图案和印刷电路板的外部接地的连接部分，以及包括在布置在打印机上的连接器中的引脚 电路板并连接到接地图案，被识别。 然后，确定销和连接部之间的排出路径。

公开(公告)号：US20110006939A1

公开(公告)日：2011-01-13

申请号：US12801457

申请日：2010-06-09

申请人： Koji Hirai

发明人： Koji Hirai

IPC分类号： H03M1/66

CPC分类号： H03M1/682 ,  G09G3/3688 ,  H03M1/00 ,  H03M1/747 ,  H03M1/765 ,  H03M1/785

摘要： A resistor string type D/A converter in accordance with an exemplary aspect of the present invention includes a resistor string, switches, a higher-order decoder, a lower-order decoder, and a conversion unit. The resistor string generates a plurality of analog voltages by dividing a voltage between a first reference voltage and a second reference voltage. Each of the switches is provided for a respective one of a plurality of voltage drawing points. The higher-order decoder generates a higher-order control signal according to the value of higher bits of an input digital signal. The lower-order decoder generates a lower-order control signal corresponding to the value of lower bits of the input digital signal. The conversion unit outputs a voltage between a pair of the analog voltage values obtained through a pair of switches based on the lower-order control signal.

摘要翻译： 根据本发明的示例性方面的电阻串型D / A转换器包括电阻串，开关，高阶解码器，低阶解码器和转换单元。 电阻串通过将第一参考电压和第二参考电压之间的电压相除来产生多个模拟电压。 每个开关设置用于多个电压绘制点中的相应一个。 高阶解码器根据输入数字信号的较高位的值产生高阶控制信号。 低阶解码器产生对应于输入数字信号的低位的值的低阶控制信号。 转换单元基于低级控制信号输出通过一对开关获得的一对模拟电压值之间的电压。

公开(公告)号：US20080129883A1

公开(公告)日：2008-06-05

申请号：US11893600

申请日：2007-08-14

申请人： Koji Hirai ,  Hiroyuki Kobayashi

发明人： Koji Hirai ,  Hiroyuki Kobayashi

IPC分类号： H04N5/63

CPC分类号： H04N21/436 ,  H04N5/44 ,  H04N5/775 ,  H04N21/43632 ,  H04N21/43635

摘要： A video receiving apparatus is provided. The video receiving apparatus may have a video input terminal to input video data, and may include a voltage detector configured to detect a voltage applied to a specific contact point in the video input terminal; and a control unit configured to determine whether a video transmission apparatus is connected to the video input terminal through a predetermined cable, based on a value of the voltage detected by the voltage detector.

摘要翻译： 提供一种视频接收装置。 视频接收装置可以具有用于输入视频数据的视频输入端子，并且可以包括被配置为检测施加到视频输入端子中的特定接触点的电压的电压检测器; 以及控制单元，被配置为基于由电压检测器检测到的电压的值，确定视频传输设备是否通过预定电缆连接到视频输入终端。

公开(公告)号：US07249973B2

公开(公告)日：2007-07-31

申请号：US11418664

申请日：2006-05-05

申请人： Koji Hirai

发明人： Koji Hirai

IPC分类号： H01R13/648

CPC分类号： H05K9/0049 ,  H05K9/0018 ,  H05K9/0052

摘要： A tube-shaped electroconductive member is attached to a shielding casing from the inside of the shielding casing so as to surround an opening formed in the shielding casing, and two slits are formed in an axial direction of the tube-shaped electroconductive member so as to extend from an end position thereof far away from the opening, thereby preventing a noise component having a specific frequency emitted as radiation noise from the opening formed in the shielding casing which functions as an slot antenna.

摘要翻译： 管状导电构件从屏蔽壳体的内部附接到屏蔽壳体，以围绕形成在屏蔽壳体中的开口，并且在管状导电构件的轴向方向上形成两个狭缝，以便 从其远离开口的端部位置延伸，从而防止作为辐射噪声的特定频率的噪声成分从形成在作为缝隙天线的屏蔽壳体中形成的开口。

公开(公告)号：US06871053B2

公开(公告)日：2005-03-22

申请号：US09768679

申请日：2001-01-24

申请人： Yasuhiro Shibuya ,  Koji Hirai ,  Hiroyuki Kiyanagi

发明人： Yasuhiro Shibuya ,  Koji Hirai ,  Hiroyuki Kiyanagi

IPC分类号： H03G3/30 ,  H04B1/40 ,  H04B7/005 ,  H04B7/208 ,  H04B7/26 ,  H04W52/04 ,  H04W52/34 ,  H04W72/04 ,  H04W84/08 ,  H04B1/06

CPC分类号： H03G3/3036 ,  H04W52/34

摘要： A wireless communication apparatus according to the present invention is composed of a first section for carrying out wireless communication with a multichannel signal and a second section having a plurality of channel units each process a predetermined frequency signal as a channel signal. The wireless communication apparatus is arranged to have a plurality of variable attenuators each provided for corresponding one of the channel signals received from each channel unit of the second section, a combiner for combining outputs from the respective variable attenuators together and outputting the resultant combined signal to the first section, and a control unit for controlling the degree of attenuation of the individual variable attenuators according to the variation of the number of the channel signals. According to the arrangement, the wireless communication apparatus can not only communicate with an opponent station by transmitting a multichannel signal but also effectively suppress negative influence on existing channel even if a new channel unit is additionally provided.

摘要翻译： 根据本发明的无线通信装置由用于执行与多信道信号的无线通信的第一部分和具有多个信道单元的第二部分组成，每个信道单元各自处理预定的频率信号作为信道信号。 无线通信装置被配置为具有多个可变衰减器，每个可变衰减器被设置用于从第二部分的每个信道单元接收的相应一个信道信号，组合器，用于将来自各个可变衰减器的输出组合在一起，并将所得到的组合信号输出到 第一部分和控制单元，用于根据信道信号的数量的变化来控制各个可变衰减器的衰减程度。 根据该结构，无线通信装置不仅能够通过发送多信道信号与对手站进行通信，而且即使附加地提供新的信道单元，也可以有效地抑制对现有信道的负面影响。

公开(公告)号：USD496337S1

公开(公告)日：2004-09-21

申请号：US29190721

申请日：2003-09-26

申请人： Masahiro Kaizu ,  Koji Hirai

设计人： Masahiro Kaizu ,  Koji Hirai

公开(公告)号：US06172881B2

公开(公告)日：2001-01-09

申请号：US09008507

申请日：1998-01-16

申请人： Koji Hirai

发明人： Koji Hirai

IPC分类号： H05K900

CPC分类号： H05K1/148 ,  H05K1/0216 ,  H05K1/0218 ,  H05K3/36 ,  H05K9/0039

摘要： Electronic equipment includes a plurality of circuit boards in a housing, and a plurality of plate metals in the housing, with each of the plate metals being connected to one of the circuit boards as frame grounds. A cable interconnects the plurality of circuit boards, and a conductive member interconnects the plurality of plate members. The conductive member suppresses production of radiation noise from the cable by reducing a common mode electrical current flowing in the cable.

摘要翻译： 电子设备包括壳体中的多个电路板和壳体中的多个板金属，其中每个板金属连接到一个电路板作为框架接地。 电缆将多个电路板互连，并且导电构件将多个板构件互连。 导电构件通过减少在电缆中流动的共模电流来抑制来自电缆的辐射噪声的产生。