[특허]Phase-locked oscillator for microwave/millimeter-wave ranges

[미국특허] Phase-locked oscillator for microwave/millimeter-wave ranges 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H03C-003/09 H03L-007/16
출원번호	US-0679679 (1996-07-09)
우선권정보	JP-0194785 (1995-07-31)
발명자 / 주소	Suematsu Eiji,JPX
출원인 / 주소	Sharp Kabushiki Kaisha, JPX
인용정보	피인용 횟수 : 10 인용 특허 : 3

초록 ▼

An VCO generates a high-frequency signal based on a modulating signal and a phase-locking control signal. A first distributor separates the high-frequency signal into two parts, one of which is outputted as an oscillator output signal. An n-multiplier and a microwave amplifier for n-multiplication adjust the level of the reference signal while the frequency of it is multiplied by `n`. A second distributor separates the output from the microwave amplifier for n-multiplication into two parts, one of which is made to be a comparative signal, the other is made to be a locally oscillated signal. A frequency mixer and a microwave amplifier for frequency mixing produce an intermediate frequency signal using the other output from the first distributor and the locally generated signal. The phase comparator compares the intermediate frequency signal with the comparative signal to output an error signal. An LPF generates the phase-locking control signal by removing unwanted signals from the error signal.

대표청구항 ▼

[ What is claimed is:] [1.] A phase-locked oscillator for microwave/millimeter-wave ranges comprising:an oscillating means for producing a high-frequency signal based on a modulating signal and a phase-locking control signal;a first distributing means for distributing the high-frequency signal into two parts and outputting one part of it as an oscillator output signal;an n-multiplying means for multiplying the frequency of a reference signal by `n`;a second distributing means for distributing the output from said n-multiplying means into two parts and outputting one part of it as a comparative signal and the other as a locally oscillated signal;a frequency mixing means for producing an intermediate frequency signal using the other output from said first distributing means and the locally oscillated signal;a phase comparing means for comparing the intermediate frequency signal and the comparative signal to output an error signal; anda low-pass filtering means for removing unwanted signals from the error signal to produce the phase-locking controlling signal.

이 특허에 인용된 특허 (3) 인용/피인용 타임라인 분석

Kegasa Koyo (Hyogo JPX) Murai Takafumi (Hyogo JPX) Yamanaka Osamu (Hyogo JPX) Fujii Takeshi (Hyogo JPX), PLL frequency synthesizer.
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Yoshisato Akiyuki (Soma JPX) Igarashi Sadao (Soma JPX), Phase-locked loop oscillator circuit utilizing a sub-loop with a second phase comparator.
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Vella Paul L. (Santa Rosa CA), Programmable-step, high-resolution frequency synthesizer which substantially eliminates spurious frequencies without adv.
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이 특허를 인용한 특허 (10) 인용/피인용 타임라인 분석

Convent,Thomas; Hammes,Markus; Hanke,Andr��; Puma,Giuseppe Li; Mevissen,Walter, Circuit arrangement provided with a phase-locked loop and transmitter-receiver with said circuit arrangement.
상세보기
Suematsu, Eiji; Sato, Hiroya, MILLIWAVE TRANSMITTING DEVICE, MILLIWAVE RECEIVING DEVICE AND MILLIWAVE TRANSMISSION AND RECEPTION SYSTEM CAPABLE OF SIMPLIFYING WIRING OF A RECEIVING SYSTEM OF TERRESTRIAL BROADCASTING SERVICE AND S.
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Atsushi Yamada JP; Eiji Suematsu JP; Noriko Kakimoto JP, Microwave and millimeter wave device mounted on a semiconductive substrate and comprised of different kinds of functional blocks.
상세보기
Sato,Hiroya; Suematsu,Eiji; Amano,Yoshihisa; Aoki,Tamotsu; Seki,Yoshinori, Millimeter band signal transmitting/receiving system having function of transmitting/receiving millimeter band signal and house provided with the same.
상세보기
Suematsu, Eiji, Millimeter wave band transmitter, millimeter wave band receiver and millimeter wave band communication apparatus carrying out radio communication in millimeter wave band region.
상세보기
Kakimoto Noriko,JPX ; Suematsu Eiji,JPX, Millimeter wave semiconductor device.
상세보기
Suematsu,Eiji; Aoki,Tamotsu; Ogata,Yasuo; Suzuki,Masami; Nakamura,Toshio; Seki,Yoshinori, Millimeter wave transmitter, millimeter wave receiver and millimeter wave communication system enabling simplification of wiring and improvement in degree of freedom for setting receiver in receiving.
상세보기
Ryu, Joon-Gyu; Chang, Dae-Ig, Phase locked loop and satellite communication terminal using the same.
상세보기
Suematsu, Eiji, Radio-frequency radiocommunication apparatus.
상세보기
Phillip J. Rezin, Signal generator having fine resolution and low phase noise.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Phase-locked oscillator for microwave/millimeter-wave ranges 원문보기