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    • 1. 发明授权
    • Battery feed circuit for telephone subscriber line
    • 电话用户线电池供电电路
    • US4588860A
    • 1986-05-13
    • US566476
    • 1983-12-28
    • Mitsutoshi AyanoKiyoshi ShibuyaShin-ichi ItouKenji TakatouToshiro Tojo
    • Mitsutoshi AyanoKiyoshi ShibuyaShin-ichi ItouKenji TakatouToshiro Tojo
    • H04M19/00
    • H04M19/008H04M19/001
    • 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.
    • 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。
    • 3. 发明授权
    • Ring trip circuit for subscriber telephone
    • 用户电话的环路跳闸电路
    • US4995111A
    • 1991-02-19
    • US320297
    • 1989-02-21
    • Toshiro TojoKenji TakatoKazumi KinoshitaYuzo YamamotoYozo IketaniShin-ichi Ito
    • Toshiro TojoKenji TakatoKazumi KinoshitaYuzo YamamotoYozo IketaniShin-ichi Ito
    • H04M19/02
    • H04M19/026
    • 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.
    • 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)。
    • 5. 发明申请
    • DISTRIBUTED-ARRANGEMENT LINEAR MOTOR AND CONTROL METHOD OF DISTRIBUTED-ARRANGEMENT LINEAR MOTOR
    • 分布式布置线性电机和分布式布置线性电机的控制方法
    • US20120139455A1
    • 2012-06-07
    • US13390212
    • 2010-08-05
    • Toshiro TojoToshiyuki AsoYuki NomuraAkihiro Unno
    • Toshiro TojoToshiyuki AsoYuki NomuraAkihiro Unno
    • H02K41/03
    • H02K41/03H02K11/215H02K2213/09H02P6/006H02P25/06
    • 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.
    • 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。
    • 7. 发明授权
    • Distributed-arrangement linear motor and control method of distributed-arrangement linear motor
    • 分布式线性电机分布式布置线性电机及其分布式布置线性电机的控制方法
    • US08872449B2
    • 2014-10-28
    • US13390212
    • 2010-08-05
    • Toshiro TojoToshiyuki AsoYuki NomuraAkihiro Unno
    • Toshiro TojoToshiyuki AsoYuki NomuraAkihiro Unno
    • H02K41/00H02P6/00H02K41/03H02P25/06H02K11/00
    • H02K41/03H02K11/215H02K2213/09H02P6/006H02P25/06
    • 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.
    • 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。
    • 8. 发明申请
    • LINEAR MOTOR POSITION DETECTION SYSTEM
    • 线性电机位置检测系统
    • US20100171459A1
    • 2010-07-08
    • US12602028
    • 2008-05-30
    • Toshiyuki AsoShuhei YamanakaToshiro Tojo
    • Toshiyuki AsoShuhei YamanakaToshiro Tojo
    • G05B11/32H02K41/02
    • G01B7/003G01D5/2451H02K11/215H02K41/03
    • Provided is a position detection system which is inexpensive and does not need to control the accuracy of mounting a sensor strictly.The position detection system according to the present invention includes; a linear motor having a rod 1 in which magnetic poles of N pole and S pole are arranged alternately in an axial direction and a plurality of coils 4 surrounding the rod 1; a magnetic sensor 12 for detecting change in the direction of the magnetic field of the rod 1 caused by linear movement of the rod 1 relative to the coils 4 to output a sine wave signal and a cosine wave signal which are 90° phase shifted to each other; and a position detecting circuit 13 for detecting a position of the rod 1 relative to the coils 4. As the magnetic sensor 12 detects the change in the direction of the magnetic field of the rod 1, the sine wave signal and the cosine wave signal output from the magnetic sensor 12 hardly vary eve when the distance between the rod 1 and the magnetic sensor is changed.
    • 提供一种便宜的位置检测系统,并且不需要严格控制传感器的安装精度。 根据本发明的位置检测系统包括: 具有杆1的线性电动机,其中N极和S极的磁极在轴向方向交替布置,并且多个线圈4围绕杆1; 用于检测杆1相对于线圈4的线性运动引起的杆1的磁场方向的变化的磁传感器12,以输出相位偏移90°的正弦波信号和余弦波信号 其他; 以及位置检测电路13,用于检测杆1相对于线圈4的位置。当磁传感器12检测到杆1的磁场方向的变化时,正弦波信号和余弦波信号输出 当杆1和磁传感器之间的距离改变时,磁传感器12几乎不变化。
    • 10. 发明授权
    • Ground fault detector
    • 地面故障检测器
    • US5113426A
    • 1992-05-12
    • US573130
    • 1990-09-19
    • Kazumi KinoshitaKenji TakatoToshiro Tojo
    • Kazumi KinoshitaKenji TakatoToshiro Tojo
    • H04M3/30H04M19/00
    • H04M19/008H04M19/006H04M3/30
    • In a ground fault detector for long distance subscriber lines accommodated in a small capacity digital electronic exchange, a DC/DC converter for power supply is stopped during detection of ground fault. Upon reception of the stop signal, the DC/DC converter converts the power supply voltage for the subscribers to a voltage as the system power supply of the exchange, namely to a low voltage before voltage conversion of the DC/DC converter. The battery feed circuit can maintain the alarm condition, even if a current flows continuously to the battery feed resistor due to a ground fault, until the ground fault is recovered by the maintenance person without breaking the resistor.
    • PCT No.PCT / JP90 / 00036 Sec。 371 1990年9月19日第 102(e)1990年9月19日PCT PCT 1990年1月12日PCT公布。 出版物WO90 / 08441 日期:1990年7月26日。在容纳在小容量数字电子交换机中的长距离用户线路的接地故障检测器中,在接地故障检测期间停止用于电源的DC / DC转换器。 在接收到停止信号时,DC / DC转换器将用户的电源电压转换为电压作为交换机的系统电源,即在DC / DC转换器的电压转换之前为低电压。 即使电流由于接地故障而连续流向电池供电电阻,电池供电电路也可以保持报警状态,直到维护人员接地故障恢复,而不会中断电阻。