公开(公告)号：US4995111A

公开(公告)日：1991-02-19

申请号：US320297

申请日：1989-02-21

Applicant: Toshiro Tojo ,  Kenji Takato ,  Kazumi Kinoshita ,  Yuzo Yamamoto ,  Yozo Iketani ,  Shin-ichi Ito

Inventor： Toshiro Tojo ,  Kenji Takato ,  Kazumi Kinoshita ,  Yuzo Yamamoto ,  Yozo Iketani ,  Shin-ichi Ito

IPC: H04M19/02

CPC classification number: H04M19/026

Abstract: An improved ring trip circuit for a subscriber telephone, for detecting an on-hook state or an off-hook state of the telephone. The ring trip circuit can be formed in a small size and can be formed by a LSI. The ring trip circuit includes a voltage detecting circuit (2), for detecting a voltage difference (.DELTA.V) between both ends of a ringer sending resistor, having a first circuit (S1, S2, A1.about.B3) converting the voltage difference to a current difference, and further having a second circuit (F) converting the current difference to a voltage, the voltage difference varying in response to the on-hook state or the off-hook state of the telephone, and a state detecting circuit (3) for detecting the on-hook state or the off-hook state in response to a value of the voltage from the voltage detecting circuit. The voltage detecting circuit is formed by a plurality of current mirror circuits, each of which includes at least two transistors. The state detecting circuit includes a comparator circuit (CP1) formed by a plurality of transistors.

Abstract translation: PCT No.PCT / JP88 / 00607 Sec。 371日期1989年2月21日 102（e）日期1989年2月21日PCT Filed 1988年6月18日PCT Pub。 出版物WO88 / 10542 日期为1988年12月29日。一种用于用户电话的改进的环路跳闸电路，用于检测电话的挂机状态或摘机状态。 环形跳闸电路可以形成为小尺寸并且可以由LSI形成。 环路跳闸电路包括电压检测电路（2），用于检测振铃发送电阻器两端之间的电压差（DELTA V），该电路具有将电压差转换为a的第一电路（S1，S2，A1差分B3） 并且还具有将电流差转换为电压的第二电路（F），所述电压差响应于电话的挂机状态或摘机状态而变化，以及状态检测电路（3） 用于响应于来自电压检测电路的电压的值来检测挂机状态或摘机状态。 电压检测电路由多个电流镜电路形成，每个电流镜电路包括至少两个晶体管。 状态检测电路包括由多个晶体管形成的比较器电路（CP1）。

公开(公告)号：US4588860A

公开(公告)日：1986-05-13

申请号：US566476

申请日：1983-12-28

Applicant: Mitsutoshi Ayano ,  Kiyoshi Shibuya ,  Shin-ichi Itou ,  Kenji Takatou ,  Toshiro Tojo

Inventor： Mitsutoshi Ayano ,  Kiyoshi Shibuya ,  Shin-ichi Itou ,  Kenji Takatou ,  Toshiro Tojo

IPC: H04M19/00

CPC classification number: H04M19/008 ,  H04M19/001

Abstract: A battery feed circuit for a two-wire telephone subscriber line is miniaturized by an electronic integrated circuit without a transformer. The electronic battery feed circuit is composed of first and second operational amplifiers, output resistors, a DC voltage feedback loop, an AC signal feedback loop and a switching power supply. The switching power supply means is to control the power source voltage of the first operational amplifier, corresponding to the length of the subscriber line loop and the status of a telephone set in the loop. Low power consumption of the circuit is attained as follows. Most of power loss of the circuit can be separated as between the amplifiers and the output resistors. The loss of the output resistors are reduced by using small resistances, and the loss of the second amplifier is reduced by using a small DC bias. The loss of the first amplifier is reduced by setting its power source voltage to several volts lower than output voltage of the switching power supply. The switching power supply is composed of a zener diode, two comparators and a switching transistor circuit.

Abstract translation: 用于双线电话用户线的电池馈电电路由没有变压器的电子集成电路小型化。 电子电池馈电电路由第一和第二运算放大器，输出电阻器，直流电压反馈回路，交流信号反馈回路和开关电源组成。 开关电源装置用于控制第一运算放大器的电源电压，对应于用户线环路的长度和电路在环路中的状态。 电路的低功耗如下。 电路的大多数功率损耗可以在放大器和输出电阻之间分开。 通过使用小电阻来减小输出电阻的损耗，并且通过使用小的直流偏压来减小第二放大器的损耗。 通过将其电源电压设置为比开关电源的输出电压低几伏来降低第一放大器的损耗。 开关电源由齐纳二极管，两个比较器和开关晶体管电路组成。

公开(公告)号：US08362720B2

公开(公告)日：2013-01-29

申请号：US12602028

申请日：2008-05-30

Applicant: Toshiyuki Aso ,  Shuhei Yamanaka ,  Toshiro Tojo

Inventor： Toshiyuki Aso ,  Shuhei Yamanaka ,  Toshiro Tojo

IPC: H02P1/00

CPC classification number: G01B7/003 ,  G01D5/2451 ,  H02K11/215 ,  H02K41/03

Abstract: A position detection system includes a linear motor having a rod in which magnetic poles of N pole and S pole are arranged alternately in an axial direction and a plurality of coils surrounding the rod a magnetic sensor for detecting change in the direction of the magnetic field of the rod caused by linear movement of the rod relative to the coils to output a sine wave signal and a cosine wave signal which are 90° phase shifted with respect to one another, and a position detecting circuit for detecting a position of the rod relative to the coils. As the magnetic sensor detects the change in the direction of the magnetic field of the rod, the sine wave signal and the cosine wave signal output from the magnetic sensor hardly vary even when the distance between the rod and the magnetic sensor is changed.

Abstract translation: 一种位置检测系统，包括：线性电动机，其具有杆，N极和S极的磁极沿轴向交替排列;以及多个线圈，围绕所述杆，磁传感器用于检测磁场方向的变化 所述杆由所述杆相对于所述线圈的线性运动引起，以输出相对于彼此相差90°的正弦波信号和余弦波信号;以及位置检测电路，用于检测所述杆相对于所述线圈的位置 线圈。 当磁传感器检测到杆的磁场方向的变化时，即使当杆和磁传感器之间的距离改变时，从磁传感器输出的正弦波信号和余弦波信号也几乎不变化。

公开(公告)号：US20060208849A1

公开(公告)日：2006-09-21

申请号：US10548633

申请日：2004-03-11

Applicant: Toshiro Tojo ,  Takashi Kaku ,  Tooru Ogawa

Inventor： Toshiro Tojo ,  Takashi Kaku ,  Tooru Ogawa

IPC: H01C10/36

CPC classification number: H04L25/0292 ,  H04L25/0278

Abstract: A signal level switching circuit is provided with input resistors 2a and 2b connected between input terminals 1a and 1b of a signal and output terminals 5a and 5b used to be connected to a reception circuit 6; a switch circuit 3 which has been constituted by a plurality of switching elements and has been connected to the output terminals 5a and 5b; and a voltage dividing resistor 4 for selectively switching/connecting with respect to the input resistors 2a and 2b by this switch circuit 3.

Abstract translation: 信号电平切换电路设置有连接在用于连接到接收电路6的信号和输出端子5a和5b之间的输入端子1a和1b之间的输入电阻器2a和2b; 开关电路3由多个开关元件构成，并连接到输出端子5a和5b; 以及用于通过该开关电路3选择性地切换/连接到输入电阻器2a和2b的分压电阻器4。

公开(公告)号：US07019611B2

公开(公告)日：2006-03-28

申请号：US10803083

申请日：2004-03-18

Applicant: Takashi Kaku ,  Fumishiro Tsuda ,  Toshiro Tojo ,  Toyomi Obikawa ,  Toshiya Sato ,  Hideaki Yamauchi ,  Masahiko Kunii

Inventor： Takashi Kaku ,  Fumishiro Tsuda ,  Toshiro Tojo ,  Toyomi Obikawa ,  Toshiya Sato ,  Hideaki Yamauchi ,  Masahiko Kunii

IPC: H01F17/06

CPC classification number: H04B3/56 ,  H01F19/08 ,  H01F2019/085 ,  H01F2038/143 ,  H04B2203/5425 ,  H04B2203/547 ,  H04B2203/5483

Abstract: A modem coupling circuit comprising: (a) a transformer 1 having a core 1a including a gap formed therein, primary windings N1a, N1b constituting a bifilar wound coil which is wound around the core 1a, forming a single layer and connected to power lines L1, L2, and a secondary winding N2 connected to a transmitting circuit 2 and a secondary winding N3 connected to a receiving circuit 3, the secondary windings N2, N3 holding the single layer of the primary windings between; (b) a coupling capacitor C1 connected to a middle point between first ends of the primary windings, the first ends being not connected to the power lines L1, L2; (c) current limiting resistances R1a, R1b connected to the primary windings N1a, N1b having a bifilar construction; (d) drive resistances R2a, R2b connected to the secondary winding for transmission N2; and (e) terminating resistances R3a, R3b connected to the secondary winding for reception N3.

Abstract translation: 一种调制解调器耦合电路，包括：（a）具有芯1a的变压器1，其中形成有间隙，初级绕组N 1 a，N 1 b构成缠绕在芯1a上的双绕线圈，形成单层 连接到与发送电路2连接的电力线L 1，L 2和次级绕组N 2，以及连接到接收电路3的次级绕组N 3，保持单层的次级绕组N 2，N 3 初级绕组之间; （b）连接到初级绕组的第一端之间的中点的耦合电容器C 1，第一端不连接到电力线L 1，L 2; （c）连接到具有双相结构的初级绕组N 1 a，N 1 b的限流电阻R 1 a，R b; （d）连接到用于传输的次级绕组N 2的驱动电阻R 2 a，R 2 b; 和（e）连接到用于接收的次级绕组N 3的端接电阻R 3 a，R 3 b。

公开(公告)号：US5128992A

公开(公告)日：1992-07-07

申请号：US565050

申请日：1990-08-09

Applicant: Kenji Takato ,  Toshiro Tojo ,  Yuzo Yamamoto

Inventor： Kenji Takato ,  Toshiro Tojo ,  Yuzo Yamamoto

IPC: H04B3/03 ,  H04M1/58 ,  H04M19/00

CPC classification number: H04M19/005

Abstract: A hybrid circuit which converts receiving side four-wire signals from a switching network into two-wire signals, supplies the same through line B and line A to a telephone terminal equipment, and converts two-wire signals supplied from the telephone terminal equipment through the line A and the line B to the switching network into transmitting side four-wire signals, including a pair of battery feeding and terminating resistors connected between power sources (GND and V.sub.BB) and the line B and line A and a receiving side mirror circuit and transmitting side mirror circuit both connected between the lines B and A.

公开(公告)号：US4935960A

公开(公告)日：1990-06-19

申请号：US409701

申请日：1989-09-20

Applicant: Kenji Takato ,  Toshiro Tojo ,  Kazumi Kinoshita ,  Yuzo Yamamoto

Inventor： Kenji Takato ,  Toshiro Tojo ,  Kazumi Kinoshita ,  Yuzo Yamamoto

IPC: H04M19/00

CPC classification number: H04M19/005

Abstract: A battery feed circuit including a main battery feed part and its peripheral circuits provided in a line circuit of a switching system. The peripheral circuits include the following: First, a means for forming a low impedance with respect to in-phase signals, simply realized by a capacitor; second, a bias circuit able to suppress the entry of power source noise and easily switch magnitudes of bias voltages and polarities, realized by a bias voltage generating means, a buffer means, and and AC bypass capacitor; third, a battery feed current control circuit able to suppress overflow of battery feed current when the distance to the subscriber is short, which detects an overcurrent component above a predetermined value, and, in accordance with the same, changes the bias voltage; fourth, a battery feed current supervising circuit able to detect current in both the forward and reverse directions, realized by an emitter-follower pair and a voltage/current converting resistor; fifth, a circuit for detecting bidirectional battery feed currents at a high precision, which is formed by forward direction and reverse direction current detection means provided with V.sub.BE cancelling means; and sixth, an overcurrent protection circuit, which changes the voltage applied between the inputs (+,-) of a transconductance amplifier forming the main battery feed part in accordance with an excess voltage.

公开(公告)号：US4912429A

公开(公告)日：1990-03-27

申请号：US326177

申请日：1989-03-20

Applicant: Kenji Takato ,  Toshiro Tojo ,  Kazumi Kinoshita ,  Yuzo Yamamoto

Inventor： Kenji Takato ,  Toshiro Tojo ,  Kazumi Kinoshita ,  Yuzo Yamamoto

IPC: H03F1/08 ,  H03F3/45

CPC classification number: H03F3/45085 ,  H03F1/083 ,  H03F2200/516 ,  H03F2203/45496 ,  H03F2203/45664 ,  H03F2203/45708

Abstract: An operational amplifier for producing an output signal representing the voltage differential between two input signals is powered by first, second and third power sources respectively having high, intermediate and low output voltage levels. A voltage buffer circuit, which is connected to the second power source, interconnects a constant current source, which is connected to the first power source, and an amplifier means, which is connected to the third power source, and separates the constant current source from the third power source. A differential amplifier in the amplifier means responds to the two input signals for producing a voltage differential output signal, and an output circuit connected between the second and third power sources receives the voltage differential output signal of the differential amplifier for producing the voltage differential output signal of the operational amplifier.

公开(公告)号：US08217538B2

公开(公告)日：2012-07-10

申请号：US12647627

申请日：2009-12-28

Applicant: Kazuo Shoda ,  Toshiro Tojo ,  Yuki Nomura ,  Akihiro Unno

Inventor： Kazuo Shoda ,  Toshiro Tojo ,  Yuki Nomura ,  Akihiro Unno

IPC: H02K41/02 ,  H02K41/03

CPC classification number: H02K41/03 ,  H02K2201/03

Abstract: A linear motor is provided with a stator, a slider disposed to be movable relatively with respect to the stator with a gap, and a non-magnetic plate mounted to either one of the stator and the slider so as to define the gap between the stator and the slider.

Abstract translation: 线性马达设置有定子，滑动件设置成相对于具有间隙的定子可相对移动，并且非磁性板安装到定子和滑块中的任一个，以便限定定子之间的间隙 和滑块。

公开(公告)号：US20120139455A1

公开(公告)日：2012-06-07

申请号：US13390212

申请日：2010-08-05

Applicant: Toshiro Tojo ,  Toshiyuki Aso ,  Yuki Nomura ,  Akihiro Unno

Inventor： Toshiro Tojo ,  Toshiyuki Aso ,  Yuki Nomura ,  Akihiro Unno

IPC: H02K41/03

CPC classification number: H02K41/03 ,  H02K11/215 ,  H02K2213/09 ,  H02P6/006 ,  H02P25/06

Abstract: A distributed-arrangement linear motor in which stators are arranged in a distributed manner and a method of controlling the distributed-arrangement linear motor are provided. The linear motor 1 is a linear motor in which a stator and a movable member are relatively movable, wherein the stator and the movable member respectively have periodic structures in which plural kinds of poles of the stator and the movable member (12a, 12b, 12c) (22a, 22b, 22c) which magnetically act each other and arranged periodically subsequently in an order according to the arrangement in a direction of the relative motion therebetween; a plurality of stators are arranged in a distributed manner in the direction of the relative motion; a distance D1, D2 between adjacent stators is not more than a length Lmv of the movable member; the pole of the stator is formed of a coil 11; and a current control unit that controls current to be supplied to the coil based on the distance between the stators is provided.

Abstract translation: 提供了分布式布置的分布式线性电动机和分配布置的线性电动机的控制方法。 线性电动机1是定子和可动构件相对移动的线性电动机，其中定子和可动构件分别具有定子和可动构件的多种极（12a，12b，12c）的周期性结构 ）（22a，22b，22c），它们彼此磁性地相互作用，并且在它们之间的相对运动的方向上按照该布置的顺序周期性地布置; 多个定子以相对运动的方向分布布置; 相邻定子之间的距离D1，D2不大于可动件的长度Lmv; 定子的极由线圈11形成; 并且提供了基于定子之间的距离来控制提供给线圈的电流的电流控制单元。