| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | Oszillatorschaltung | EP92120165.3 | 1992-11-26 | EP0601217A1 | 1994-06-15 | Wiesenthal, Hartmut; Behrent, Hermann |
Die Vorrichtung dient zur gleichzeitigen Erfassung von zwei elektrischen Schwingungen mit unterschiedlichen Frequenzen. Es ist dazu ein Schwingquarz (1) mit mindestens zwei unterschiedlichen Resonanzfrequenzen vorgesehen. Ein Emitter eines ersten Transistors (2) ist über den Schwingquarz mit einem Emitter eines zweiten Transistors (9) verbunden. Die Basen der Transistoren sind jeweils über Basisschwingkreise (11,17) mit einem unteren Bezugspotential und die Kollektoren der Transistoren jeweils über Kollektorschwingkreise (5,14) mit einem oberen Bezugspotential verbunden. Die Basis jeweils eines der Transistoren ist elektrisch mit dem Kollektor jeweils des anderen Transistors verbunden. Die Basen der Transistoren sind jeweils über Wechselstromkoppler an das untere Bezugspotential angeschlossen. |
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| 22 | 쿼드러처 전압제어발진기 | KR1020050086519 | 2005-09-15 | KR100691281B1 | 2007-03-12 | 오승민; 백원진 |
| A quadrature voltage controlled oscillator is provided to obtain high phase noise characteristics and low power consumption, by forming a common node with an inverter, in order to give differential property to a quadrature signal. A first oscillator(100) includes a first resonant circuit generating a first resonant frequency, and a first cross-coupled transistor pair generating first and second signals having phase difference of 180 degrees while supplying energy to the first resonant frequency. A second oscillator(200) includes a second resonant circuit generating a second resonant frequency, and a second cross-coupled transistor pair generating third and fourth signals having phase difference of 180 degrees while supplying energy to the second resonant frequency. A first current source(300) is connected between a ground and a first common node of the first cross-coupled transistor pair. A second current source(400) is connected between the ground and a second common node of the second cross-coupled transistor pair. A differential load(500) is connected between the ground and a third common node of the first current source and the second current source. | ||||||
| 23 | 크리스탈 발진기와 알씨 발진기를 포함하는 다중 발진 회로 | KR1020000006261 | 2000-02-10 | KR1020010083330A | 2001-09-01 | 장계언; 최광주 |
| PURPOSE: A multiple oscillating circuit including a crystal oscillator and an RC oscillator is provided to stably operate the oscillation although an electric power voltage changes in a crystal oscillating by un-using a schmitt trigger circuit to a main amplifier of the oscillator. CONSTITUTION: A multiple oscillating circuit includes an oscillating unit(40) for an RC oscillation, a feedback resistant unit(50), a feedback resistant controlling unit(60), a first sub transistor array, a main amplifying unit(80), a second sub transistor array(90), a decoding unit(100) for decoding the mode selective signals(OPT0P,OPT0B,OPT1P,OPT1B,OPT2P,OPT2B,RCEN) provided from a latch circuit(20), transmission gates(TG1,TG2,TG3), inverters(IV1-IV6), NMOS transistors(MN1,MN2), and a schmitt trigger(ST2). The oscillating unit(40) is comprised of a capacitor(C1), a transmission gate(41), and inverters(42,43). The one end of the oscillating unit(40) is connected to a first terminal(XI) through the transmission gate(TG1) and the other end thereof is connected to an input part of the main oscillator(80) through the transmission gate(TG2). The feedback resistant unit(50) is comprised of transmission gates(51,52,53) is connected between the first terminal(XI) and a second terminal(XO). The transmission gates(51,52,52) is controlled by controlling signals provided from the feedback resistant controlling unit(60). The feedback resistant controlling unit(60) is comprised of inverters(61,62,63,67), NAND gates(64,65,66), and NOR gates(68,69). | ||||||
| 24 | 파형 발생 회로 | KR2019880022444 | 1988-12-31 | KR2019900013603U | 1990-07-05 | 박재양 |
| 25 | VOLTAGE CONTROLLED OSCILLATOR WITH REDUCED PHASE NOISE | PCT/US2019/038880 | 2019-06-25 | WO2020009833A1 | 2020-01-09 | JANSEN, Douglas S. |
A voltage controlled oscillator (VCO) is disclosed to provide reduced phase noise at higher operating frequencies. A buffer-first VCO configured according to an embodiment includes multiple VCO core circuits configured to provide synchronously tuned oscillator signals. Each VCO core circuit is coupled to a summing node through a buffer circuit that generates uncorrelated phase noise such that the summing node provides a summation output of the oscillator signals with reduced phase noise. A multiplexer-less VCO configured according to an embodiment includes multiple buffer-first VCO circuits configured to provide oscillator signals covering a range of frequencies. Each buffer-first VCO circuit is controlled or selected by an enable signal. Buffer circuits are configured to select one of the buffer-first VCO circuits for coupling to a transmission line during a given time period based on the enable signal. The transmission line is terminated in a matched impedance at each end of the line. |
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| 26 | OSCILLATOR HAVING DUAL TOPOLOGY | PCT/EP2012074716 | 2012-12-06 | WO2013083735A3 | 2013-08-15 | CHATAIGNER EMMANUEL; DEDIEU SEBASTIEN |
| An oscillator (200, 300, 350) comprises a tank circuit (100), a first transistor (M1c) and a second transistor (M1r), and the second transistor (M1r) occupies an area of silicon that is smaller than an area of silicon occupied by the first transistor (M1c). A switching apparatus (Sw1...Sw14) selects either one of a first oscillator topology and a second oscillator topology, where in the first oscillator topology, the tank circuit (100) is coupled to the first transistor (M1c) in a first feedback configuration to provide feedback around the first transistor (M1c), and in the second oscillator topology, the tank circuit (100) is coupled to the second transistor (M1r) in a second feedback configuration that is different to the first feedback configuration to provide feedback around the second transistor (M1r). | ||||||
| 27 | LINKING AND BROWSING MEDIA ON TELEVISION | PCT/US2007/008684 | 2007-04-05 | WO2007114956A2 | 2007-10-11 | GORTI, Sreenivasa; NADARAJAH, Dinesh; LOWRIE, Peter |
Techniques for linking and browsing media on a television (TV) are provided. A selected program, which is associated with a channel of the TV, is detected and additional content, which is associated with that channel and/or the selected program, is dynamically acquired from one or more external sources. The additional content is formatted as links and simultaneously presented within a display of the TV along with the selected program that continues to play on the TV. Furthermore, activation of any link results in the additional content being dynamically acquired and presented within the display. |
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| 28 | A MICROSTRIP TUNABLE VOLTAGE CONTROLLED OSCILLATOR IN A PUSH-PUSH OSCILLATOR CONFIGURATION | PCT/US2004029451 | 2004-09-09 | WO2005025068A3 | 2005-06-09 | ROHDE ULRICH L; PODDAR AJAY KUMAR |
| In one aspect, a voltage controlled oscillator is provided that includes circuitry comprising tunable coupled resonator networks, which are coupled to a terminal of a pair of three-terminal devices through a tuning voltage network which supports wide-band tunability. In another aspect, a wide-band tunable resonator is provided that is amenable to integration in the integrated circuit form. | ||||||
| 29 | 멀티-대역 밀리미터파 5G 통신을 위한 브로드밴드 위상 고정 루프용 듀얼 전압 제어 오실레이터 회로들 | KR1020207037239 | 2019-05-21 | KR102503692B1 | 2023-02-23 | |
| 30 | 트리플 푸시 구조를 가지는 전압제어발진기 | KR20170149250 | 2017-11-10 | KR20180066825A | 2018-06-19 | RIEH JAESUNG; SON HEEKANG; SONG KIRYONG |
| 트리플푸시구조를가지는전압제어발진기가개시된다. 트리플푸시구조를가지는전압제어발진기는제어전압에기초하여출력신호를출력하는다수의발진회로를포함하는전압제어발진부-상기다수의발진회로는트리플푸시구조를가지도록연결됨; 각발진회로의출력단과연결되며, 상기각 발진회로의출력단에서출력되는출력신호의위상을변경하는다수의위상천이기; 및상기다수의위상천이기에서각각위상이변경되어출력되는출력신호를합하여최종출력신호를출력하는출력부를포함한다. | ||||||
| 31 | 복수의 음향공진기를 이용한 멤스 발진장치 | KR1020050004693 | 2005-01-18 | KR1020060083761A | 2006-07-21 | 김규식; 서오권 |
| 복수의 음향공진기를 이용한 멤스 발진장치가 제공된다. 본 멤스 발진장치는, 기판, 기판상에 형성되며 구동시 각기 다른 발진주파수를 생성하여 출력하는 복수의 음향공진기, 및 기판상에 형성되며 복수의 음향공진기 중 어느 하나가 선택적으로 구동되도록 스위칭동작하는 멤스 스위칭부를 포함한다. 이에 의해, 가변커패시터의 커패시턴스를 조정하는 방식 대신, 각기 다른 주파수를 생성하는 복수의 음향공진기 중 원하는 어느 하나를 선택하는 방식에 의해 발진주파수를 생성할 수 있게 때문에, 보다 정확한 발진주파수를 생성하는 것이 가능해진다. 멤스, FBAR, 발진주파수, 스위칭 | ||||||
| 32 | 주파수 발생 장치 | KR1019960065209 | 1996-12-13 | KR1019980046796A | 1998-09-15 | 안만순 |
| 본 발명은 입력주파수를 이중화하여 외부의 영향 등으로 어느 한 입력 주파수가 영향을 받을지라도 일정하게 주파수를 출력할 수 있는 주파수 발생장치에 관한 것으로서, 제 1 입력주파수와 지연 소자에 의해 미리 정해진 시간만큼 지연된 제 1 입력주파수를 입력받아 제 1 제어신호에 응답하여 제 1 입력주파수를 가변적으로 지연하여 출력하거나 디스에이블 되는 제 1 가변 지연부; 제 2 입력주파수와 지연 소자에 의해 미리 정해진 시간만큼 지연된 제 2 입력주파수를 입력받아 제 2 제어주파수에 응답하여 제 2 입력주파수를 가변적으로 지연하여 출력하거나 디스에이블 되는 제 2 가변 지연부; 상기 제 1 및 제 2 가변 지연부의 출력주파수를 비교하여 위상차가 일정 이하가 되도록 두 주파수의 위상차를 출력하는 위상 비교부; 상기 제 1 및 제 2 가변 지연부의 출력 주파수를 입력 받아 하나의 입력주파수에 이상이 발생하면 자동으로 스위치를 절체하여 이상이 없는 입력주파수가 일정하게 출력하도록 하는 스위치 절체부; 및 상기 위상 비교부의 출력 주파수 및 상기 스위치 절체부의 출력 주파수를 검출하여 제 1 및 제 2 제어 신호를 발생하는 CPU(Central process Unit)를 구비한 것을 특징으로 한다. | ||||||
| 33 | OSCILLATOR, TRANSMISSION/RECEPTION DEVICE, AND FREQUENCY SYNTHESIZER | EP07829825 | 2007-10-15 | EP2086107A4 | 2009-10-28 | MIZUTANI HIROYUKI; NISHIDA KAZUHIRO; TSURU MASAOMI; KAWAKAMI KENJI; HIEDA MORISHIGE; MIYAZAKI MORIYASU |
| 34 | LINKING AND BROWSING MEDIA ON TELEVISION | EP07774954.7 | 2007-04-05 | EP2002536A2 | 2008-12-17 | GORTI, Sreenivasa; NADARAJAH, Dinesh; LOWRIE, Peter |
| Techniques for linking and browsing media on a television (TV) are provided. A selected program, which is associated with a channel of the TV, is detected and additional content, which is associated with that channel and/or the selected program, is dynamically acquired from one or more external sources. The additional content is formatted as links and simultaneously presented within a display of the TV along with the selected program that continues to play on the TV. Furthermore, activation of any link results in the additional content being dynamically acquired and presented within the display. | ||||||
| 35 | MODULATOR COMPRISING A DUAL-FREQUENCY OSCILLATOR AND A SYNTHESIZER | EP05758451.8 | 2005-07-01 | EP1769578A1 | 2007-04-04 | KERSELAERS, Anthony; ELSEN, Felix |
| Oscillators (10) which oscillate at a fundamental frequency also generate harmonics. The fundamental frequency or a lower harmonic is used for feedback purposes, and a harmonic higher than either the fundamental frequency or the lower harmonic is used for output purposes. As a result, the oscillators (10) operate at a lower frequency than an output frequency and are low cost. Synthesizers (20) coupled to the oscillators (10) also operate at this lower frequency, and modulators (5) comprising such oscillators (10) and synthesizers (20) are low cost. A lower power consumption and less sensitivity to disturbing fields are further advantages. Filtering has become less complicated, and a smaller number of components has resulted in smaller dimensions. The oscillators (10) comprise tuning circuits (11) and amplifiers (12), which amplifiers (12) are fed back via feedback circuits (13). Such an amplifier (12) may comprise just a single transistor (40). | ||||||
| 36 | Voltage controlled oscillator for frequency synthesizer | EP04028845.8 | 2004-12-06 | EP1542355B1 | 2007-02-07 | Ikarashi, Yasuhiro, c/o Alps Electric Co., Ltd. |
| 37 | Voltage controlled oscillator for frequency synthesizer | EP04028845.8 | 2004-12-06 | EP1542355A1 | 2005-06-15 | Ikarashi, Yasuhiro, c/o Alps Electric Co., Ltd. |
The present invention provides a voltage controlled oscillator capable of simplifying the structure of a frequency synthesizer. The voltage controlled oscillator includes an oscillating transistor 8a, and first and second inductance elements 8c and 8d which are connected in series and provided between an output terminal of the oscillating transistor 8a and a high frequency ground point Vcc. Oscillating signals are output from the output terminal of the oscillating transistor 8a and a connecting point between the first inductance element 8c and the second inductance element 8d, respectively. The output terminal of the oscillating transistor outputs a fundamental wave having a high level, and the connecting point between two inductance elements outputs the harmonic wave, suppressing the fundamental wave. |
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| 38 | A multi-band type voltage controlled oscillator | EP00310052.6 | 2000-11-13 | EP1111771A2 | 2001-06-27 | Mahon, John-Carl; Nagai, Kenta; Katsumata,Masashi |
A multi-band type voltage controlled oscillator has a resonant circuit part (100) and an oscillating circuit part (200). The resonant circuit part (100) has plural resonant circuits (110, 120) having their resonant frequencies, and controls the plural resonant frequencies in their respective frequency-bands by a frequency control voltage to be applied to a first controlling terminal (103). The oscillating circuit part (200) has a transistor (T1) of which the base is connected to an output terminal (101) to which the plural resonant circuits (110, 120) are coupled. By changing the capacitance between the emitter and collector of the transistor (T1) with a frequency band selective voltage to be applied to a second controlling terminal (201), an optimum oscillating condition is satisfied at each of the plural resonant frequencies. |
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| 39 | Oszillatorschaltung | EP92120165.3 | 1992-11-26 | EP0601217B1 | 1995-07-26 | Wiesenthal, Hartmut; Behrent, Hermann |
| 40 | Schaltungsanordnung zur Erzeugung eines niederfrequenten Wechselstromes für die Elektrotherapie | EP81100944.8 | 1981-02-11 | EP0035138B1 | 1985-01-30 | Scherer, Erich |
