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1. 发明授权

US5856899A Magnetic head 失效
标题翻译：磁头
公开(公告)号：US5856899A
公开(公告)日：1999-01-05
申请号：US955907
申请日：1997-10-23
申请人： Kinya Aoyagi , Tokuo Nakamura , Hiroshi Yamagami , Seiichi Abiko , Masahiro Iizuka , Satoshi Maki
发明人： Kinya Aoyagi , Tokuo Nakamura , Hiroshi Yamagami , Seiichi Abiko , Masahiro Iizuka , Satoshi Maki
IPC分类号： G11B5/10 , G11B5/105 , G11B5/133 , G11B5/193 , G11B5/23 , H01F1/34 , G11B5/235
CPC分类号： G11B5/193 , G11B5/1335 , G11B5/102 , G11B5/105 , G11B5/23 , G11B5/232
摘要： The magnetocrystalline anisotropic energy Kl is set to not more than 100 J/m.sup.3 and the absolute value of the magnetostriction in the direction, as the magnetic circuit direction, is reduced by appropriately selecting the ferrite material composition. Since the magnetocrystalline anisotropic energy Kl is small, the magnetoelastic energy largely affects the anisotropy of the crystallographic axis. The magnetoelastic energy is made negative and small in magnitude by adjusting the average coefficients of thermal expansion of the ferrite material and glass so as to apply a tensile stress around the magnetic gap of the magnetic head. The direction, i.e., magnetic circuit direction, is thereby allowed to coincide with a hard axis of magnetization. As a result, the permeability of the magnetic head is improved at high-frequency bands.
摘要翻译：将磁晶各向异性能K1设定为不超过100J / m 3，并且通过适当选择铁素体材料组成，减小作为磁路方向的<100>方向的磁致伸缩的绝对值。由于磁晶各向异性能K1小，所以磁弹性能很大程度上影响结晶轴的各向异性。通过调整铁氧体材料和玻璃的平均热膨胀系数，使磁致伸缩能量呈负值且小的程度，从而在磁头的磁隙周围施加拉伸应力。因此，允许<100>方向，即磁路方向与硬磁化轴一致。结果，磁头的磁导率在高频带被改善。

2. 发明授权

US5875245A High voltage detection circuit, bell signal detection circuit and non-ringing reception detection circuit 失效
标题翻译：高电压检测电路，振铃信号检测电路和非振铃接收检测电路
公开(公告)号：US5875245A
公开(公告)日：1999-02-23
申请号：US891104
申请日：1997-07-10
申请人： Tokio Miyasita , Tokuo Nakamura , Toshihiko Kotaka
发明人： Tokio Miyasita , Tokuo Nakamura , Toshihiko Kotaka
IPC分类号： H04M1/00 , H04M3/30 , H04M11/00 , H04M19/04 , G08B21/00
CPC分类号： H04M3/30 , H04M19/04 , H04M19/045
摘要： In a high voltage detection circuit, a high voltage detection portion 10 constituted with, for instance, two constant voltage circuits 10a and 10c and a current mirror portion 10b, a strobe input 20 and an output communication device 30 are provided. This high voltage detection circuit outputs a high voltage detection signal S30 if an input voltage Vin, which is equal to or greater than a voltage value set by the constant voltage circuits 10a and 10c is supplied while a strobe control signal ST is provided. When high voltage detection on telephone lines is performed by such a high voltage detection circuit by inputting the results of the detection of a polarity inversion at telephone lines as a strobe control signal ST, only reception of bell signal can be detected. In addition, by resetting the results of polarity inversion detection using the results of high voltage detection, it is possible to identify a non-ringing reception that is not accompanied by a bell signal.
摘要翻译：在高电压检测电路中，设置例如由两个恒压电路10a，10c和电流镜部分10b构成的高电压检测部分10，选通输入20和输出通信装置30。如果在提供选通控制信号ST的同时提供等于或大于由恒压电路10a和10c设置的电压值的输入电压Vin，则该高电压检测电路输出高电压检测信号S30。当通过在电话线上输入极性反转的检测结果作为选通控制信号ST而通过这样的高电压检测电路进行电话线路的高电压检测时，只能检测到振铃信号的接收。此外，通过使用高电压检测的结果重置极性反转检测的结果，可以识别不伴随振铃信号的非振铃接收。

3. 发明授权

US4922359A Rotary head type digital audio tape recorder 失效
标题翻译：旋转头式数字录音机
公开(公告)号：US4922359A
公开(公告)日：1990-05-01
申请号：US206453
申请日：1988-06-13
申请人： Tokuo Nakamura
发明人： Tokuo Nakamura
IPC分类号： G11B5/09 , G11B5/008 , G11B5/53
CPC分类号： G11B5/531 , G11B5/0086
摘要： A rotary digital audio tape recorder having a rotary cylinder of a predetermined diameter driven at a predetermined rotation rate, a pair of recording/reproducing heads disposed in proximity of each other on the rotary cylinder, and a magnetic tape kept in contact with the peripheral surface of the rotary cylinder through a predetermined lap angle, wherein a recording or reproducing operation is performed on the magnetic tape with the rotation of the cylinder and the relative motion of the magnetic tape. The rotation rate of the cylinder and the lap angle of the magnetic tape thereto are selectively so set as to retain interchangeability with any magnetic tape recorded or reproduced by a conventional rotary cylinder with two magnetic heads disposed opposite to each other at an angular interval of 180.degree.. Since the diameter of the rotary cylinder is thus rendered smaller, the whole structure can be dimensionally reduced while a sufficiently high head output is obtainable with a satisfactory signal-to-noise ratio being retained.
摘要翻译：一种具有以预定旋转速度驱动的预定直径的旋转圆筒的旋转数字式磁带录像机，在旋转圆筒上彼此靠近设置的一对记录/再现头，以及与外周表面保持接触的磁带通过预定的搭接角度对旋转圆筒进行记录或再现操作，其中随着圆筒的旋转和磁带的相对运动而对磁带进行记录或再现操作。圆柱体的旋转速度和磁带的旋转角度选择性地被设定为保持与常规旋转圆筒记录或再现的任何磁带的互换性，其中两个磁头以180°的角度间隔彼此相对设置 DEG。由于旋转圆筒的直径因此变小，因此可以在保持足够的信噪比的同时可以获得足够高的头部输出的同时，整体结构得以减小。

4. 发明授权

US06978008B2 Zero crossing detection circuit 失效
标题翻译：过零检测电路
公开(公告)号：US06978008B2
公开(公告)日：2005-12-20
申请号：US10271779
申请日：2002-10-17
申请人： Tokuo Nakamura
发明人： Tokuo Nakamura
IPC分类号： G01R19/14 , H03F3/343 , H03F3/347 , H03K17/725 , H04M1/82 , H04M3/00 , H04M3/22
CPC分类号： H04M1/82 , G01R19/175
摘要： A PNPN structure thyristor and a third P-type impurity region are formed on a semiconductor substrate, and a fixed current circuit using an NPN transistor 20 and a resistor 30 is connected to a cathode terminal K and a gate terminal G of a composite element 10 that has a P-channel MOS transistor Q3 with the third P-type impurity region as a drain connected to a PNP transistor Q1 of the thyristor. If a voltage applied to the anode terminal A of the composite element 10 rises from 0V, initially the thyristor is on and current flows, but once the threshold voltage of transistor Q3 is reached transistor Q3 turns on. A short circuit then exists between the base and emitter of transistor Q3 of the thyristor and current of the composite element 10 itself is cut off. Because of the bipolar structure it is simple to configure a small integrated circuit with a high withstand voltage. In this way, a zero crossing detection circuit is provided that has high withstand voltage characteristics, but which can be made as a small sized integrated circuit.
摘要翻译：在半导体衬底上形成PNPN结构晶闸管和第三P型杂质区，并且使用NPN晶体管20和电阻30的固定电流电路连接到复合元件10的阴极端子K和栅极端子G 其具有作为与晶闸管的PNP晶体管Q1连接的漏极的第三P型杂质区的P沟道MOS晶体管Q 3。如果施加到复合元件10的阳极端子A的电压从0V上升，则最初晶闸管导通，电流流过，但是一旦达到晶体管Q 3的阈值电压，晶体管Q 3就导通。然后在晶闸管的晶体管Q 3的基极和发射极之间存在短路，并且复合元件10本身的电流被切断。由于双极结构，配置具有高耐压的小型集成电路很简单。以这种方式，提供了具有高耐压特性但可以作为小尺寸集成电路的零交叉检测电路。

5. 发明授权

US6049234A Telemetering apparatus 失效
公开(公告)号：US6049234A
公开(公告)日：2000-04-11
申请号：US882378
申请日：1997-06-25
申请人： Tokio Miyashita , Toshihiko Kotaka , Tokuo Nakamura , Hironobu Uehara
发明人： Tokio Miyashita , Toshihiko Kotaka , Tokuo Nakamura , Hironobu Uehara
IPC分类号： H03K3/0232 , H03K3/037 , H03K5/1534 , H04M11/00 , H04M19/04 , G01R19/00 , H03K5/22
CPC分类号： H04M11/002
摘要： The object of the present invention is to provide the telemetering apparatus, which telemeters electric power, gas, and waterworks, for telemetering via a telephone network with an exchange, wherein the telemetering apparatus responds to the normal polarity inversion, the slow polarity inversion, and calling bell signal applied to the communication line therebetween upon starting or releasing of use of the communication line. To attain the above object, the telemetering appears according to the present invention comprises detection means for detecting a rising edge or falling edge of those polarity inversions and signal characterized thereby with reference to the respective predetermined voltage and the respective predetermined period, thus distinguishing one of these polarity inversions and signal from the others.

6. 发明授权

US06411148B1 Telemetering apparatus 失效
标题翻译：遥测仪
公开(公告)号：US06411148B1
公开(公告)日：2002-06-25
申请号：US09418508
申请日：1999-10-15
申请人： Tokio Miyashita , Toshihiko Kotaka , Tokuo Nakamura , Hironobu Uehara
发明人： Tokio Miyashita , Toshihiko Kotaka , Tokuo Nakamura , Hironobu Uehara
IPC分类号： H03K3033
CPC分类号： H04M11/002
摘要： The object of the present invention is to provide the telemetering apparatus, which telemeters electric power, gas, and waterworks, for telemetering via a telephone network with an exchange, wherein the telemetering apparatus responds to the normal polarity inversion, the slow polarity inversion, and calling bell signal applied to the communication line therebetween upon starting or releasing of use of the communication line. To attain the above object, the telemetering appears according to the present invention comprises detection means for detecting a rising edge or falling edge of those polarity inversions and signal characterized thereby with reference to the respective predetermined voltage and the respective predetermined period, thus distinguishing one of these polarity inversions and signal from the others.
摘要翻译：本发明的目的是提供一种用于通过电话网络进行遥测的电力，气体和水厂的遥测设备，其中遥测装置响应正常极性反转，慢极性反转，以及在通信线路的使用开始或释放时，向其通信线路施加呼叫振铃信号。为了实现上述目的，根据本发明的远程测量包括检测装置，用于检测这些极性反转的上升沿或下降沿以及参考相应的预定电压和相应的预定周期表征的信号，从而区分这些极性反转和来自其他的信号。

7. 发明授权

US5937030A Off-hook signal and dial pulse generating circuit and a method for driving the same circuit 失效
标题翻译：摘机信号和拨号脉冲发生电路以及驱动相同电路的方法
公开(公告)号：US5937030A
公开(公告)日：1999-08-10
申请号：US936897
申请日：1997-09-25
申请人： Tokio Miyashita , Tokuo Nakamura , Toshihiko Kotaka
发明人： Tokio Miyashita , Tokuo Nakamura , Toshihiko Kotaka
IPC分类号： H04M1/31 , H04M1/24 , H04M3/08 , H04M3/22
CPC分类号： H04M1/312
摘要： An off-hook signal and dial pulse generating circuit which has a smaller number of switching devices having a high withstand current characteristic and has a less surge voltage than up to now. A dial pulse circuit and a switch block circuit are connected in parallel with the output side of a full-wave rectifying circuit. The circuit comprises an impedance circuit and a first switch circuit to be turned on/off by a signal. The impedance circuit operates in a state where it has an inductance component in case that a signal synchronized with a signal is off and operates in a state where it has no inductance in case that the signal is on, and an electric current flowing therethrough is turned on/off by the first switch circuit. The circuit comprises a series circuit composed of second and third switch circuits. The second switch circuit is turned on/off in response to a signal synchronized with the signal (where this circuit is off when the signal is on). The third switch circuit is turned on/off in response to the signal.
摘要翻译：一种摘机信号和拨号脉冲发生电路，其具有较少数量的具有高耐受电流特性并且具有比迄今为止更低的浪涌电压的开关装置。拨号脉冲电路和开关块电路与全波整流电路的输出侧并联连接。该电路包括阻抗电路和通过信号导通/截止的第一开关电路。阻抗电路在与信号同步的信号关闭的情况下具有电感分量的状态下工作，并且在信号接通的情况下在其没有电感的状态下工作，并且流过其中的电流被转动由第一开关电路接通/断开。该电路包括由第二和第三开关电路组成的串联电路。第二开关电路响应于与信号同步的信号而被接通/断开（当信号接通时该电路断开）。响应于该信号，第三开关电路被接通/断开。

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