| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Oscillator that includes a charge-flow transistor | US76038 | 1979-09-17 | US4317084A | 1982-02-23 | Stephen D. Senturia; Kou Togashi |
| An oscillator having a logic element that includes a charge-flow transistor and a load element, in combination, and that further includes a Schmitt trigger or the like connected to receive as input thereto an output from the logic element and to provide an output that is fed back as input to the logic element. | ||||||
| 182 | Chime generating circuit | US642968 | 1975-12-22 | US4012702A | 1977-03-15 | Vernon F. Weber |
| A circuit for electronically generating chime-like tones wherein an oscillator circuit output is passed through a diode bridge having another diode across the D.C. terminals thereof and poled to be conductive. The resultant tone is distorted to considerably increase its harmonic content. Further to obtain the desired decoy characteristics a capacitor is included in series with said other diode to thus decrease the current through said bridge as the capacitor becomes charged. | ||||||
| 183 | Multichannel generator | US565851 | 1975-04-07 | US3956703A | 1976-05-11 | Johannes Noordanus; Marie Marcel Arnold Antoine Ghislain Verstraelen |
| Multichannel generator for at will generating any one of a plurality of channel frequencies in the GHz band which are spaced from one another by equal channel distances. The multichannel generator is constituted by a frequency synthesis device which comprises two phase-locked loops which each comprise an oscillator, a divider adjustable in discrete steps and a phase detector to which a reference frequency is applied. The adjustable dividers keep in step. One of the oscillators is coupled via a fixed divider and a mixer stage to the adjustable frequency divider included in the relevant loop. The signal injected into the mixer stage is derived from the other oscillator. The influence of the fixed divider on the value of the channel spacing is avoided by a particular relationship between the reference frequencies supplied to the phase detectors. | ||||||
| 184 | Frequency step generator | US3733542D | 1972-06-26 | US3733542A | 1973-05-15 | DIANORA M |
| The invention disclosed herein provides a frequency generator having a pair of oscillators producing two frequencies coupled thru individual gate circuits to provide an output of one or another of said frequencies. There is provided a gating circuit and an adder which combines the output frequencies which actuate a Schmidt trigger which in turn actuates a bistable multivibrator which controls the individual gates.
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| 185 | Coherent frequency multiplier and encoder | US3706928D | 1964-11-12 | US3706928A | 1972-12-19 | BECK EMANUEL A; BASSNETT ARTHUR J |
| The present invention provides a signal generator capable of producing randomly selected coherent output frequencies. Specifically, the proposed generator comprises a first section which generates a carrier frequency, and a second section, containing a chain of frequency multipliers, which is capable of producing a plurality of coherent modulating frequencies. The carrier frequency is first selectively modulated with random ones of the plurality of modulating frequencies to produce high and low sideband and the high and low sidebands are then selectively connected to the output of the generator by a random code.
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| 186 | Vocal response synthesizer | US3472964D | 1965-12-29 | US3472964A | 1969-10-14 | HOGUE VERNON D |
| 187 | Variable frequency oscillator | US41422464 | 1964-11-27 | US3406403A | 1968-10-15 | JOSEPH SPITERI |
| 188 | Blocking oscillator for producing a harmonic frequency spectrum of a high output power | US60410156 | 1956-08-15 | US2864955A | 1958-12-16 | KURT JOSTEN |
| 189 | Multifrequency voltage generator | US34886153 | 1953-04-15 | US2675475A | 1954-04-13 | TROUSDALE ROBERT B |
| 190 | Generator of multiple voltages at different frequencies | US76083747 | 1947-07-14 | US2513760A | 1950-07-04 | GABRIEL TOULON PIERRE MARIE |
| 191 | Bridge-stabilized oscillator for voice frequency circuits | US37255740 | 1940-12-31 | US2303485A | 1942-12-01 | MEACHAM LARNED A |
| 192 | Push-push type voltage controlled oscillator circuit, as well as wireless communication equipment and rf module using the same, | JP2008240690 | 2008-09-19 | JP4958866B2 | 2012-06-20 | 宝弘 中村; 徹 増田 |
| 193 | 発振器、送受信機及び周波数シンセサイザ | JP2008539807 | 2007-10-15 | JPWO2008047763A1 | 2010-02-25 | 浩之 水谷; 和広 西田; 津留 正臣; 正臣 津留; 川上 憲司; 憲司 川上; 檜枝 護重; 護重 檜枝; 守泰 宮▲ざき▼ |
| 発振周波数F0の2N倍の周波数2N・F0の信号の4分の1波長に相当する線路長を有する先端開放スタブ4をトランジスタ1のコレクタ端子と接続して、出力端子6をトランジスタ1のコレクタ端子と先端開放スタブ4との接続点5に設けるとともに、発振周波数F0の信号の4分の1波長より長い線路長を有する先端開放スタブ7をトランジスタ1のベース端子と接続して、出力端子9を先端開放スタブ7の先端から発振周波数F0の信号の4分の1波長に相当する位置にある接続点8に設ける。 | ||||||
| 194 | Frequency synthesizer used for frequency hopping system | JP2007208378 | 2007-08-09 | JP2008283659A | 2008-11-20 | JANG CHI-DUNG; LAI CHIH-HAO; HWANG CHIEH-TSAO |
| <P>PROBLEM TO BE SOLVED: To provide a UWB frequency synthesizer with high integration, low complexity, low power consumption and a small area. <P>SOLUTION: A frequency synthesizer includes: a voltage controlled oscillator which generates an oscillation frequency on the basis of a voltage control signal; a phase-locked loop system which frequency-divides the oscillation frequency with an even number by a first frequency divider to produce the result as a first frequency-divided signal and produces the voltage control signal on the basis of the first frequency-divided signal; a second frequency divider which frequency-divides the oscillation frequency with an even number to produce the result as a second frequency-divided signal and a third frequency-divided signal; a first single sideband mixer which mixes the second frequency-divided signal and the third frequency-divided signal to produce the result as a first mixed signal; a second single sideband mixer which mixes the first mixed signal and the first frequency-divided signal on the basis of a sub-band first selection signal to produce the result as a second mixed signal; and a multiplexer which selectively outputs either the first mixed signal or the second mixed signal on the basis of a sub-band second selection signal. <P>COPYRIGHT: (C)2009,JPO&INPIT | ||||||
| 195 | Power distribution circuit and frequency multiplier | JP2003281308 | 2003-07-28 | JP4179091B2 | 2008-11-12 | 健一 細谷 |
| 196 | Oscillator | JP2006300335 | 2006-11-06 | JP2008118440A | 2008-05-22 | MIZUTANI HIROYUKI; NISHIDA KAZUHIRO; TSURU MASAOMI; KAWAKAMI KENJI; MIYAZAKI MORIYASU |
| PROBLEM TO BE SOLVED: To obtain an oscillator for reliably branching between a signal, with a frequency F 0 and a signal with a frequency (2N)F 0, and outputting them from different output terminals. SOLUTION: The oscillator includes an active element for generating a prescribed oscillation frequency signal and a 2N-fold oscillation frequency signal; an inductor connected between the active element and the ground; a first distal end open stub connected to the collector terminal of the active element and having a line length, corresponding to the quarter-wavelength of the 2N-fold oscillation frequency signal; the first output terminal for outputting the signal with the oscillation frequency generated from the active element; a second distal end open stub, connected to the base terminal of the active element and having a line length larger than the quarter-wavelength of the oscillation frequency signal; a third tip open stub, having a line length larger than the half-wavelength of the oscillation frequency signal; and the second output terminal for outputting the signal with the 2N-fold frequency of the oscillation frequency generated from the active element. COPYRIGHT: (C)2008,JPO&INPIT | ||||||
| 197 | Oscillator and quadrature modem comprising the same | JP2007033039 | 2007-02-14 | JP2007124714A | 2007-05-17 | OSHIMA TAKESHI; TAKASUGI TOSHIYASU; KONUKI MASAHIRO |
| PROBLEM TO BE SOLVED: To obtain a crystal quadrature output oscillator current consumption of which is made low, used for QPSK or QAM of digital communication. SOLUTION: A crystal quadrature output oscillator comprises a crystal oscillation circuit including a transistor, a crystal vibrating chip, a capacitor and a resistor, a duplex mode crystal filter, a reactance element and an amplifier. The crystal quadrature output oscillator defines an output of the crystal oscillation circuit as a first output, applies the output to one terminal of the duplex mode crystal filter in which a common electrode is grounded, connects the reactance element in parallel between another terminal and a ground, and is configured to obtain a second output from the node through the amplifier. COPYRIGHT: (C)2007,JPO&INPIT | ||||||
| 198 | Voltage controlled oscillator | JP2003408569 | 2003-12-08 | JP2005175564A | 2005-06-30 | IGARASHI YASUHIRO |
| PROBLEM TO BE SOLVED: To provide a voltage-controlled oscillator capable of simplifying a configuration of a frequency synthesizer. SOLUTION: In the voltage-controlled oscillator provided with an oscillation transistor 8a and first and second inductor elements 8c, 8d connected in series with each other and placed between an output terminal of the oscillation transistor 8a and a high frequency grounding point Vcc, an oscillation signal is respectively outputted from two points, an output terminal of the oscillation transistor 8a and a connecting point between the first and second inductor elements 8c, 8d, a fundamental wave with a greater level is outputted from the output terminal of the oscillation transistor 8a and harmonics with the suppressed fundamental wave are outputted from the connecting point between the two inductor elements. COPYRIGHT: (C)2005,JPO&NCIPI | ||||||
| 199 | Oscillator | JP2001038059 | 2001-02-15 | JP2002246845A | 2002-08-30 | YABUKI HIROYUKI |
| PROBLEM TO BE SOLVED: To provide an oscillator which is formed of an oscillation source constituted of a PLL frequency synthesizer and a mixer and a frequency-divider, capable of being adaptive to a wide band frequency range by using one oscillation source. SOLUTION: In the oscillator formed of the oscillation source 201 constituted of the PLL frequency synthesizer and the mixer 202 and the frequency-divider 203, the output of the oscillation source 201 is obtained as one input of the mixer 202, and the output of the mixer 202 is obtained as the input of the frequency-divider 203, and the output of the frequency-divider 203 is fed back to the other input of the mixer 202. Then, output signals are respectively extracted from the oscillation source 201, the mixer 202, and the frequency- divider 203, thus it is possible to realize the oscillator adaptive to a wide band frequency range by using only one oscillation source 201. | ||||||
| 200 | Two-band oscillator | JP35775299 | 1999-12-16 | JP2001177341A | 2001-06-29 | IGARASHI YASUHIRO |
| PROBLEM TO BE SOLVED: To provide a two-band oscillator by which only one oscillation signal is effectively extracted from one output terminal and only the other oscillation signal is extracted effectively from the other output terminal by enhancing the isolation between the output terminals. SOLUTION: This two-band oscillator is provided with an oscillation section 1 that outputs a 1st oscillation signal at a 1st frequency band or outputs a 2nd oscillation signal at a 2nd frequency band, whose frequencies are higher than those of the 1st frequency band, an amplification transistor(TR) 3 that amplifies the 1st or 2nd oscillation signal, a parallel resonance circuit 4 whose one terminal is connected to the collector of the amplification TR 3, and a 1st inductor 5 that is connected between the other terminal and the parallel resonance circuit 4 and a ground point 6 in terms of high frequencies. The other terminal of the parallel resonance circuit 4 outputs the 1st oscillation signal, the collector of the amplification TR 3 outputs the 2nd oscillation signal, and the resonance frequency of the parallel resonance circuit 4 is selected such that it is nearly equal to a frequency in the 2nd frequency band or a twice of a frequency of the 1st frequency band. COPYRIGHT: (C)2001,JPO | ||||||
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