| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | Magnetic amplifying unit | JP7816779 | 1979-06-22 | JPS562717A | 1981-01-13 | KIWAKI HISAKATSU |
| PURPOSE: To make a magnetic amplifying unit small-size, by providing a means which restrains the electricity quantity, which is flowed to the winding for nonsaturation of the magnetic core, to a value smaller than the electricity quantity which is flowed for saturation. CONSTITUTION: Detecting winding ND is wound around magnetic core Cr, and transistor Tr is inserted between power source EA and the series circuit of output winding NL and load resistance RL. The base input is given from operational amplifier OP to this TR, and the output of reference signal generator ES 1 is given to the + terminal of amplifier OP, and the induced voltage of detecting winding ND is given to the - terminal. By this constitution, the induced voltage of winding ND and the induced voltage of winding NL are so controlled that they may be equal to the voltage of generator ES 1 for nonsaturation of magnetic core Cr. At this time, windings ND and NL are equal in respect to the number of turns. For saturation, the induced voltage of winding ND becomes zero, nd therefore, the voltage of power source EA is supplied to winding NL. Thus, the number of turns of winding NL can be reduced considerably, and consequently, the unit can be smallsize. COPYRIGHT: (C)1981,JPO&Japio | ||||||
| 2 | JPS318726B1 - | JP1876454 | 1954-09-02 | JPS318726B1 | 1956-10-12 | |
| 3 | 연결 인터페이스를 포함하는 ＲＦＩＤ 시스템 | KR1020090070480 | 2009-07-31 | KR1020110012664A | 2011-02-09 | 강희복 |
| PURPOSE: An RFID(Radio Frequency IDentification) system including a connecting interface is provided to transmit and receive a signal to and from an external device through a connection port and transmit and receive a wireless to and from an RFID reader through an antenna. CONSTITUTION: A connection port(40) is connected to an external device, and a connection interface unit(20) connects the connection port to an RFID(Radio Frequency IDentification) chip(10). A first buffer generates an input signal by buffering one or more external input signals received through the connection port. The first buffer outputs the input signal to the RFID chip. | ||||||
| 4 | Power amplifier | US3471720D | 1966-04-27 | US3471720A | 1969-10-07 | RADNOR RICHARD RISHEL |
| 5 | Magnetic amplifier for low-level input signals | US38132364 | 1964-07-09 | US3402359A | 1968-09-17 | FUMIYUKI INOSE; HIROSHI MOROZUMI; KYO SUDA; TOSHIO NUMAKURA; RYUTARO MORI |
| 6 | Magnetic amplifier controlled power circuit operative with d.c. electric source | US32582763 | 1963-11-25 | US3374440A | 1968-03-19 | YOSHINORI KAWAI; HISAKATSU KIWAKI; HIROSHI SATO |
| 7 | Sensitive long time constant bistable amplifier | US39781764 | 1964-09-21 | US3363190A | 1968-01-09 | ANDERSON ROBERT R |
| 8 | Differential magnetic amplifier circuit | US36023564 | 1964-04-16 | US3359502A | 1967-12-19 | TAKEO MIURA; AKIO MIYAMOTO; CHIKAFUSA HIRANO |
| 9 | Automatic gain control in a magnetic amplifier | US34451464 | 1964-02-12 | US3359501A | 1967-12-19 | TROUTMAN PAUL H |
| 10 | Single-core balanceable magnetic amplifier | US37832964 | 1964-06-26 | US3358221A | 1967-12-12 | DARLING HORACE E |
| 11 | Magnetic amplifier circuits | US55358466 | 1966-01-26 | US3344320A | 1967-09-26 | NELSON ROBERT E |
| 12 | Magnetic amplifier circuits | US28232163 | 1963-05-22 | US3242421A | 1966-03-22 | NELSON ROBERT E |
| 13 | Double integrator magnetic amplifier output circuit | US6831760 | 1960-11-09 | US3213203A | 1965-10-19 | GEYGER WILLIAM A |
| 14 | 6, 16alpha-dimethyl steroids | US79676259 | 1959-03-03 | US3168536A | 1965-02-02 | NEVILLE KIRK DAVID; MORTON WILLIAMSON DAVID |
| 15 | Two terminal magnetic amplifier apparatus | US8525461 | 1961-01-27 | US3136941A | 1964-06-09 | JACOB MARLOW |
| 16 | Magnetic amplifier | US6354460 | 1960-10-19 | US3131360A | 1964-04-28 | OLOF LUNDAHL LARS |
| 17 | Temperature-compensated saturable reactors | US74640158 | 1958-07-03 | US3122700A | 1964-02-25 | GABRIEL VINCENT T; MANTEUFFEL ERICH W |
| 18 | Use of ultrasonic bias in magnetic amplifiers | US8360161 | 1961-01-18 | US3098196A | 1963-07-16 | VIERNSTEIN LAWRENCE J |
| 19 | Signal translating device | US78221258 | 1958-12-22 | US3090909A | 1963-05-21 | MATBERS HARRY W |
| 20 | Electrical ratio control magnetic amplifier | US76113658 | 1958-09-15 | US3085208A | 1963-04-09 | DARLING HORACE E |
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