子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | SYSTEM FOR HEATING A HYDROCARBON RESOURCE IN A SUBTERRANEAN FORMATION INCLUDING A MAGNETIC AMPLIFIER AND RELATED METHODS | US13456857 | 2012-04-26 | US20130284430A1 | 2013-10-31 | FRANCIS PARSCHE |
| A system for heating a hydrocarbon resource in a subterranean formation having a wellbore extending therein is provided. The system includes a radio frequency (RF) source, an RF antenna to be positioned within the wellbore, and a magnetic amplifier to be positioned in the wellbore and configured to couple the RF source to the RF antenna so that the RF antenna supplies RF power to the hydrocarbon resource in the subterranean formation. | ||||||
| 82 | Wireless patient monitoring system | US11205792 | 2005-08-17 | US08480577B2 | 2013-07-09 | Mark Joseph Tuccillo |
| A wireless patient monitoring system. In one embodiment the system has a first patient monitoring subsystem including a plurality of sensors and sensor modules; and a processor-transceiver in communication with the plurality of sensors and sensor modules; and a first clinician display subsystem including a processor-transceiver. The processor-transceiver of the first clinician display subsystem broadcasts, on a first predetermined frequency, the frequency the processor-transceiver of the first clinician display subsystem will use to communicate with the processor-transceiver of the first patient monitoring subsystem. The processor-transceiver of the first patient monitoring subsystem then transmits and receives data on the frequency that the processor-transceiver of the first clinician display subsystem will use to communicate with the processor-transceiver of the first patient monitoring subsystem. The processor-transceiver of the first patient monitoring subsystem reverts to the first frequency if communication with the processor-transceiver of the first clinician display subsystem is lost. | ||||||
| 83 | AMPLIFIER | US12489447 | 2009-06-23 | US20100321106A1 | 2010-12-23 | Yen-Wei Hsu; Whei-Chyou Wu |
| This invention relates to an amplifier, especially an amplifier having electrical and magnetic input excitations. | ||||||
| 84 | AUDIO PLAYING MODULE AND METHOD OF THE SAME | US12333975 | 2008-12-12 | US20090154732A1 | 2009-06-18 | Ko-Kang WANG |
| An audio module used for a display device is disclosed. The display device has a display substrate. The audio module has a filter, an amplifier, and at least one output unit. The filter receives and filters an audio signal to generate a filtered signal. The amplifier is coupled to the filter and amplifies the filtered signal to generate an amplified signal. At least one output unit is coupled to the amplifier and plays the amplified signal in a predetermined way. | ||||||
| 85 | Switch mode converters | US245660 | 1981-03-20 | US4353113A | 1982-10-05 | Keith H. Billings |
| A magnetic amplifier which has a main winding and at least one secondary reset winding, and a core composed of amorphous magnetic material, the amplifier being arranged to operate at a frequency greater than 20 KH.sub.z. The invention also includes a switch mode converter which includes such a magnetic amplifier arranged to regulate the output of the converter by pulse width modulation. | ||||||
| 86 | Magnetic signal mixing amplifier | US582802 | 1975-06-02 | US3993960A | 1976-11-23 | Koosuke Harada |
| Magnetic signal mixing amplifier comprises a saturable core having a rectangular magnetization characteristic, at least one D.C. input winding, and a D.C. driven oscillator connected to receive the output, said amplifier being supplied with an asymmetrical waveform so that a difference between the mean values of the positive and negative halfwaves of the oscillatory output results. | ||||||
| 87 | Pulse width modulator an electrical circuit device to modulate width of electrical square shaped pulses | US3769609D | 1971-10-28 | US3769609A | 1973-10-30 | SVALBE J |
| Pulse Width Modulator, an electrical circuit device to modulate width of electrical square shaped pulses under influence of magnetic field, said device comprising two saturable magnetic cores, each core surrounded by windings, each winding having diode in series and both said core-windings-diodes elements binded or surrounded firmly by control elements, whereby supplied square shaped pulses on windings with diodes are transferred to consumption circuit distorted into parts substantially independent from original.
|
||||||
| 88 | Magnetic firing circuit for thyristors | US3626275D | 1969-07-08 | US3626275A | 1971-12-07 | HARADA KOSUKE |
| A novel control circuit for constant current applications. The circuit comprises a thyristor bridge which is fired by a magnetic amplifier. The DC output current of the thyristors flows through the feedback winding of the magnetic amplifier to cancel the effect of the input ampere-turns, and to keep the output current constant through the equal ampere-turns characteristic of the conventional saturable reactor. Because thyristors are used in the output stage, the new circuit can control a large amount of output power with a device of light weight and small size. The principle of the new circuit is also effectively applied to parallel operation of multithyristors, in which individual currents can be adjusted to various desired values.
|
||||||
| 89 | Transistor magnetic amplifier pulse circuit | US3489916D | 1964-10-26 | US3489916A | 1970-01-13 | BACON JAMES R; BARNES GEORGE H; MEYERHOFF ALBERT J |
| 90 | Reversible magnetic amplifier | US3488601D | 1967-08-28 | US3488601A | 1970-01-06 | ROSENBLAT MOISEI ARONOVICH |
| 91 | Non-linear,positive-feedback amplifier | US3423687D | 1965-04-21 | US3423687A | 1969-01-21 | ABE RYOICHI; MIURA TAKEO |
| 92 | 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 |
| 93 | 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 |
| 94 | Hybrid amplifier | US40662964 | 1964-10-26 | US3356957A | 1967-12-05 | WHEELER DONALD H |
| 95 | Progressive saturation magnetic amplifier | US20897562 | 1962-07-10 | US3246234A | 1966-04-12 | MORTON STIMLER |
| 96 | Safety device for magnetic amplifiers | US19627162 | 1962-05-21 | US3244994A | 1966-04-05 | ANTON RAFLER HELFRIED |
| 97 | Magnetic systems using multiaperture cores | US62533356 | 1956-11-30 | US3212067A | 1965-10-12 | RAJCHMAN JAN A; LO ARTHUR W |
| 98 | Method of making a magnetic amplifier | US22711862 | 1962-09-26 | US3171191A | 1965-03-02 | ARMAND CIOCCIO; FRAZIER HERMAN M |
| 99 | Magnetic amplifier | US60062945 | 1945-06-20 | US3153764A | 1964-10-20 | ELMEN GUSTAF W; GAUGLER EDWARD A |
| 100 | Variable inductance device | US57403156 | 1956-03-26 | US2996682A | 1961-08-15 | LORIMER MILLER GABRIEL |
QQ群二维码
意见反馈
意见反馈