公开(公告)号：US5146107A

公开(公告)日：1992-09-08

申请号：US741566

申请日：1991-08-07

申请人： Yasushi Matsuoka ,  Akio Matsumoto ,  Yoshimi Kanda ,  Hirofumi Endo ,  Tsutomu Ajioka ,  Satoshi Motouji

发明人： Yasushi Matsuoka ,  Akio Matsumoto ,  Yoshimi Kanda ,  Hirofumi Endo ,  Tsutomu Ajioka ,  Satoshi Motouji

IPC分类号： H03K17/04 ,  H03K3/286 ,  H03K17/0412 ,  H03K17/16 ,  H03K17/22

CPC分类号： H03K3/2865 ,  H03K17/04126 ,  H03K17/16 ,  H03K17/22 ,  H03K2017/226

摘要： In a switching circuit formed as an integrated circuit, a series circuit comprising a diode (D.sub.1) and a resistor (R.sub.1) is connected between a base and an emitter of an npn transistor (TR.sub.1) requiring a high speed switching operation. Therefore, a high speed operation is made possible. Furthermore, in a circuit constructed such that the above npn transistor is driven by a pnp transistor (TR.sub.3, TR.sub.4), a leakage current produced in the above pnp transistor at high temperature is allowed to flow in the above series circuit. Accordingly, a malfunction of the above npn transistor is prevented. Consequently, an integrated circuit operable even under high temperatures is achieved.

摘要翻译： 在形成为集成电路的开关电路中，包括二极管（D1）和电阻（R1）的串联电路连接在需要高速切换操作的npn晶体管（TR1）的基极和发射极之间。 因此，可以进行高速运转。 此外，在由pnp晶体管（TR3，TR4）驱动上述npn晶体管的电路中，在上述串联电路中允许在高温下产生的上述pnp晶体管产生的漏电流。 因此，防止上述npn晶体管的故障。 因此，即使在高温下也可实现集成电路。

公开(公告)号：US5828703A

公开(公告)日：1998-10-27

申请号：US616271

申请日：1996-03-15

申请人： Yoshimi Kanda

发明人： Yoshimi Kanda

IPC分类号： G06K17/00 ,  G06K19/07 ,  H04B5/00 ,  H04B5/02 ,  H04L27/06

CPC分类号： G06K19/0723

摘要： A series connection of a rectification diode and a voltage clipping circuit is connected to a resonance circuit. The voltage clipping circuit is a parallel connection of a resistor and a diode. A constant voltage circuit is connected to the voltage clipping circuit. Since no current flows through the voltage clipping circuit during residual resonance, a signal having a ripple component on top of a stabilized DC voltage appears at the input terminal of the voltage clipping circuit. By shaping the signal having the ripple component, a rectangular-wave signal and a clock signal are extracted, based on which signals a demodulation circuit restores transmitted data.

摘要翻译： 整流二极管和电压钳位电路的串联连接到谐振电路。 电压限幅电路是电阻和二极管的并联连接。 恒压电路连接到电压限幅电路。 由于在剩余谐振期间没有电流流过电压限幅电路，所以在电压削波电路的输入端出现在稳定的DC电压之上具有纹波分量的信号。 通过对具有纹波分量的信号进行整形，提取矩形波信号和时钟信号，基于哪个信号，解调电路恢复所发送的数据。

公开(公告)号：US5274220A

公开(公告)日：1993-12-28

申请号：US768439

申请日：1991-09-25

申请人： Shinichiro Fukuoka ,  Yoshimi Kanda ,  Ryoichi Miyake

发明人： Shinichiro Fukuoka ,  Yoshimi Kanda ,  Ryoichi Miyake

IPC分类号： G06K7/00 ,  G06K19/07 ,  G08B13/14

CPC分类号： G06K19/0723 ,  G06K7/0008

摘要： A data carrier according to the present invention writes a signal of a duty ratio corresponding to write data from a resonance circuit at the time of writing data using a shift register as a memory, causes the shift register to store the data, and then holds the data as a circulation mode. Then, the data held in the shift register is externally read out based on identification codes. In this way, a data carrier of a small storage capacity is made with a relatively simple structure.

摘要翻译： PCT No.PCT / JP91 / 00110 Sec。 371日期1991年9月25日 102（e）1991年9月25日PCT 1991年1月30日PCT PCT。 公开号WO91 / 11784 1991年8月8日。根据本发明的数据载体在使用移位寄存器作为存储器写入数据时，将来自谐振电路的与写入数据相对应的占空比的信号写入，使得移位寄存器存储 数据，然后将数据保存为循环模式。 然后，基于识别码从外部读出保持在移位寄存器中的数据。 以这种方式，以相对简单的结构制造具有小存储容量的数据载体。

公开(公告)号：US5142235A

公开(公告)日：1992-08-25

申请号：US643093

申请日：1991-01-22

申请人： Akio Matsumoto ,  Yasushi Matsuoka ,  Yoshimi Kanda ,  Satoshi Motouji ,  Tsutomu Ajioka

发明人： Akio Matsumoto ,  Yasushi Matsuoka ,  Yoshimi Kanda ,  Satoshi Motouji ,  Tsutomu Ajioka

IPC分类号： H03K17/95

CPC分类号： H03K17/9547 ,  H03K17/9502

摘要： The detection system comprises a sensor and a controller which are connected by two wires. The sensor can take more than two states as opposed to conventional detection systems. According to this arrangement, for instance, a small leakage current exists even when the sensor is in normal off state, and, therefore, electric current in the range of I1 to I2 flows even in normal off state. On the other hand, electric current of I3 to I4 flows in normal on state. When there is a wire breakage, no electric current flows. Conversely, when there is a shortcircuiting, electric current exceeding I4 flows. Electric current in the range of I3 to I4 corresponds to an unstable state which is neither normal on state nor normal off state. Thus, by distinguishing the level of the electric current flowing through the wires, by using suitable electric current level detecting circuit, which of the level classes it belongs to, a state signal corresponding to the result of this distinguishing process can be outputted for self-diagnosing purpose.

公开(公告)号：US4968953A

公开(公告)日：1990-11-06

申请号：US440329

申请日：1989-11-22

申请人： Yoshimi Kanda ,  Akio Matsumoto ,  Yasushi Matsuoka ,  Tsutomu Ajioka ,  Hirofumi Endo ,  Satoshi Motouji

发明人： Yoshimi Kanda ,  Akio Matsumoto ,  Yasushi Matsuoka ,  Tsutomu Ajioka ,  Hirofumi Endo ,  Satoshi Motouji

IPC分类号： G01V3/11 ,  H03B5/12 ,  H03K17/95

CPC分类号： H03K17/9547 ,  H03B5/1203 ,  H03B5/1231 ,  H03B5/1293 ,  H03B5/1296 ,  H03B2200/0038

摘要： An oscillation circuit of a proximity switch includes a parallel LC resonance circuit (L, C), an oscillation transistor (Tr6) controlled by an output voltage from the resonance circuit for switching a constant current and a feedback circuit (Tr2, Tr3) for feeding back a current flowing through the oscillation transistor to the resonance circuit. In the circuit, there is further disposed a feedback current increase circuit including a second transistor (Tr7) controlled by an output voltage from the resonance circuit and a resistor (R) connected in series to the second transistor. The resonance circuit is supplied via the feedback circuit with a feedback current obtained by adding a current flowing through the feedback current increase circuit and a current passing through the oscillation transistor, thereby developing a large change in the amplitude of the oscillation.