| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | 스핀밸브 소자 및 그 구동 방법 | KR1020107008724 | 2008-08-28 | KR101456950B1 | 2014-10-31 | 카와카미,하루오; 오기모토,야스시; 아다치,에이키 |
| 본 발명은, 스핀밸브 소자의 과열을 방지한다. 구동전류를 그 발진신호의 발진 주파수보다 낮은 주파수에 의해 진폭 변조하는 단계를 포함한다. 스핀밸브 소자에 구동전류를 흘려 발진신호를 얻는 구동방법으로, 이 진폭 변조는, ON-OFF 변조로 하는 것이 가능하며, 또한 ON-OFF 변조의 통전 상태의 기간(t
on )은 α를 해당 열확산부의 열확산율, D를 열확산부의 두께로 하여, 관계식 t
on < D
2 /α를 만족시키도록 한다.
|
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| 62 | 스핀밸브 소자 및 그 구동 방법 | KR1020107008724 | 2008-08-28 | KR1020100084633A | 2010-07-27 | 카와카미,하루오; 오기모토,야스시; 아다치,에이키 |
| Intended is to prevent the overheat of a spin valve element. Provided is a driving method for feeding the spin valve element with a drive current thereby to acquire an oscillating signal. The driving method comprises the step of subjecting the drive current to an amplitude modulation with a frequency lower than the oscillation frequency of an oscillation signal. That amplitude modulation can be made into an ON-OFF modulation, and the period of the conducting state of the ON-OFF modulation is made to satisfy a relation of ton < D/E, if the a thermally diffusive portion has a thermal diffusivity and a thickness. | ||||||
| 63 | 홀 효과를 이용한 주파수 변환방법 | KR1019990060447 | 1999-12-22 | KR1020010063380A | 2001-07-09 | 이덕형 |
| PURPOSE: A frequency conversion method using a hall effect is provided to provide high quality output characteristic and to reduce filters by lowering isolation among input terminals. CONSTITUTION: A frequency conversion method using a hall effect includes following steps. The first current(I1) is applied to a line(20) in direction perpendicular to a U shaped magnetic core(10) to form magnetic field around the line(20). The magnetic force is guided to a frequency converted element(30) located on the position to which the two ends of the core are opposite. The second current(I2) is applied to the frequency converted element(30) in direction parallel to the first current(I1) and perpendicular to the magnetic force. | ||||||
| 64 | AMPLITUDE MODULATION CONTROLLER FOR POLAR TRANSMITTER USING COARSE AND FINE POWER CONTROL | PCT/EP2008009976 | 2008-11-21 | WO2009065621A3 | 2010-04-08 | RYTER ROLAND |
| Apparatus (170) for generating a modulation signal for use in modulating the power supply of a power amplifier (160) uses coarse and fine control for controlling the amplitude of the modulation signal, and thereby controlling the output power of the power amplifier (160). The modulation signal may be generated in the digital domain and converted to the analogue domain by a digital-to-analogue converter (20), with the digital-to-analogue converter (20) providing the fine control and a variable gain amplifier (40) providing the coarse control of the analogue signal. | ||||||
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