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1. 发明授权

US5504445A Sine wave generating circuit 失效
标题翻译：正弦波发生电路
公开(公告)号：US5504445A
公开(公告)日：1996-04-02
申请号：US894645
申请日：1992-06-05
申请人： Tsutomu Miki
发明人： Tsutomu Miki
IPC分类号： H03B28/00 , H03K4/02 , H03K3/80
CPC分类号： H03K4/02
摘要： There is disclosed a sine wave generating circuit including a counter (11) for counting clocks (CLK) to provide count results (B0 to B4), a control timing generating circuit (12) for converting the count results (B0 to B4) into switching control signals (D0 to D10), a synchronous circuit (13) for adjusting the timing of the switching control signals (D0 to D10) to provide switching control signals (Q0 to Q10), a weighted resistor voltage-dividing circuit (14) for voltage-dividing potentials V.sub.D2 and V.sub.S2 by means of resistors to transmit the divided potentials sequentially to a low pass filter (15) in accordance with the switching control signals (Q0 to Q10) given from the synchronous circuit (13), and the low pass filter (15) formed of a switched capacitor having a transmission zero point which is a frequency (fCLK) of the clock (CLK). Since the resistors are set such that the divided potentials are values for a sine wave, the sine wave has high accuracy and low distortion factor. Since the transmission characteristics of the low pass filter is variable depending on the clock frequency, the sine wave having a variable frequency and good effects of suppressing high-frequency components is achieved.
摘要翻译：公开了一种正弦波发生电路，包括用于计数时钟（CLK）以提供计数结果（B0至B4）的计数器（11），用于将计数结果（B0至B4）转换为切换的控制定时发生电路（12）控制信号（D0〜D10），用于调节切换控制信号（D0〜D10）的定时的同步电路（13），提供切换控制信号（Q0〜Q10），加权电阻分压电路（14），用于分压电位VD2和VS2通过电阻根据从同步电路（13）给出的开关控制信号（Q0至Q10）顺序地将分压电位传输到低通滤波器（15），低通滤波器（15）由具有作为时钟（CLK）的频率（fCLK）的传输零点的开关电容器形成。由于电阻器被设置为使得分压电位是正弦波的值，所以正弦波具有高精度和低失真因子。由于低通滤波器的传输特性根据时钟频率而变化，所以实现了具有可变频率的正弦波和抑制高频分量的良好效果。

2. 发明授权

US4996495A Method and apparatus for generating pulsed RF power 失效
标题翻译：用于产生脉冲RF功率的方法和装置
公开(公告)号：US4996495A
公开(公告)日：1991-02-26
申请号：US278810
申请日：1988-12-02
申请人： Daniel L. Birx
发明人： Daniel L. Birx
IPC分类号： H03K3/57 , H03K3/80 , H03K17/80
CPC分类号： H03K3/57 , H03K17/80 , H03K3/80
摘要： An improved method and apparatus for generating a pulsed RF power signal is provided. A DC pulse signal is generated which is compressed to increase its power to a predetermined level. The compressed pulse signal is applied to rapidly charge capacitive elements of a frozen wave generator. The capacitive elements may for example be lumped capacitors or transmission line segments. The charging step is accomplished in a manner such that the level and/or polarity of the charge for alternate stages are different than the level and/or polarity for the remaining stages. This may be accomplished by initially charging all stages to the same level and polarity and then either flipping the charge for alternate stages or otherwise altering the charge for such alternate stages or by initially charging alternate ones of the stages to a different level and/or polarity than the remaining stages. Once the capacitive elements for all stages of the frozen wave generator are charged to the desired level and/or polarity, the charges are permitted to propagate through the frozen wave generator to the last stage thereof, the desired RF output signal being taken at the output from such last stage.
摘要翻译：提供了一种用于产生脉冲RF功率信号的改进的方法和装置。产生直流脉冲信号，其被压缩以将其功率增加到预定水平。施加压缩脉冲信号以快速充电冷冻波发生器的电容元件。电容元件可以例如是集中电容器或传输线段。充电步骤以使得用于交替级的电荷的电平和/或极性不同于剩余级的电平和/或极性的方式来实现。这可以通过首先将所有阶段充电到相同的电平和极性，然后将电荷翻转用于替代级或以其他方式改变用于这种替代级的电荷或者通过初始将交替级逐级加载到不同的电平和/或极性比剩下的阶段。一旦将冷冻波发生器的所有级的电容元件充电到期望的电平和/或极性，就允许电荷通过冷冻波发生器传播到其最后阶段，所需的RF输出信号在输出端从最后阶段。

3. 发明授权

US4904962A Gated high stability LC stabilized oscillator 失效
标题翻译：门极高稳定度LC稳压振荡器
公开(公告)号：US4904962A
公开(公告)日：1990-02-27
申请号：US304698
申请日：1989-01-31
申请人： David C. Greene
发明人： David C. Greene
IPC分类号： H04N7/26 , H03B5/12 , H03K3/03 , H03K3/64 , H03K3/80
CPC分类号： H03K3/03 , H03K3/80
摘要： A gated oscillator circuit for generating a sampling signal for digitally processing television signals, uses an LC oscillator to achieve, high frequency stability and reduced edge jitter. Circuitry is provided on both sides of a tank circuit in the oscillator for decoupling the tank circuit from other active circuit elements thereby enhancing the frequency stability.

4. 发明授权

US4727339A Start-stop oscillator having fixed starting phase and minimized quiescent power dissipation 失效
标题翻译：启动振荡器具有固定的启动阶段和最小的静态功耗
公开(公告)号：US4727339A
公开(公告)日：1988-02-23
申请号：US924868
申请日：1986-10-30
申请人： James H. Doty, II , Walter G. Gibson
发明人： James H. Doty, II , Walter G. Gibson
IPC分类号： H03B5/06 , H03B5/12 , H03K3/80 , H03L7/24 , H03B5/08
CPC分类号： H03K3/80 , H03L7/24
摘要： An amplifier having a resonator coupled between input and output terminals thereof supplies a dot clock signal to a character generator in a television receiver. A feedback control circuit supplies DC bias to the resonator during blanking intervals that preceed lines of characters to be displayed to ensure a consistent starting phase for oscillations, removes the DC bias and supplies operating power to the amplifier during a portion of the active video period of each displayed line for sustaining the oscillations and automatically inhibits the supply of amplifier power at the end of each active line of characters to thereby provide three oscillator operating modes of PRIMED, RUNNING and OFF so as to minimize overall power consumption for the oscillator for each field of displayed characters.
摘要翻译：耦合在输入和输出端之间的谐振器的放大器向电视接收机中的字符发生器提供点时钟信号。反馈控制电路在消隐间隔期间提供直流偏压到谐振器，该间隔期望显示字符串，以确保振荡的始终起始阶段，消除直流偏置并在有源视频周期的一部分期间向放大器提供工作功率每个显示的行用于维持振荡，并且自动禁止在每个有效字符行末端的放大器功率的供应，从而提供PRIMED，RUNNING和OFF的三个振荡器操作模式，以便最小化每个场的振荡器的总功耗的显示字符。

5. 发明授权

US4532434A Waveform generator 失效
标题翻译：波形发生器
公开(公告)号：US4532434A
公开(公告)日：1985-07-30
申请号：US576845
申请日：1984-02-03
申请人： James E. Layton
发明人： James E. Layton
IPC分类号： G01V1/18 , G01V13/00 , H03K3/80 , H03K5/01
CPC分类号： G01V1/181 , G01V13/00
摘要： A waveform generator is provided which is capable of generating simultaneously a plurality of electrical signals which have different waveforms. The waveform generator is completely battery operated and is particularly useful in testing multichannel devices where power is not available for standard waveform generators. A voltage regulation circuit is provided which provides a regulated voltage from a battery pack for use by the waveform generator. The forward voltage-current characteristics of the base emitter junction of a silicon transistor are used as the basis for the generation of a reference voltage for the voltage regulation circuit to thereby substantially minimize the battery drain caused by the use of a voltage regulation circuit.
摘要翻译：提供了能够同时产生具有不同波形的多个电信号的波形发生器。波形发生器是完全电池供电的，特别适用于测试不能用于标准波形发生器的多通道设备。提供一种电压调节电路，其提供来自电池组的调节电压以供波形发生器使用。硅晶体管的基极发射极结的正向电压 - 电流特性被用作产生用于电压调节电路的参考电压的基础，从而基本上使由使用电压调节电路引起的电池漏极最小化。

6. 发明授权

US4172240A Cylindrical cavity power combiner for a plurality of coaxial oscillators 失效
标题翻译：用于多个同轴振荡器的圆柱腔功率组合器
公开(公告)号：US4172240A
公开(公告)日：1979-10-23
申请号：US814743
申请日：1977-06-30
申请人： George Jerinic
发明人： George Jerinic
IPC分类号： H03B9/12 , H01P7/06 , H03B9/14 , H03K3/357 , H03K3/80 , H03B7/14
CPC分类号： H03B9/143 , H01P7/06
摘要： An improved solid state transmitter (and elements therefor) adapted particularly well to pulsed operation at radio frequencies is disclosed. Such transmitter includes the combination of: A crystal-controlled oscillator producing a continuous wave output signal which, ultimately, determines the frequency of each transmitted pulse; a first oscillatory circuit, including a resonant cavity and at least one normally quiescent coaxial oscillator incorporating an IMPATT diode; a second oscillatory circuit, including a resonant cavity and a plurality of normally quiescent coaxial oscillators, each one of such oscillators incorporating an IMPATT diode; and an improved modulator for periodically actuating all of the IMPATT diodes in such a manner that a pulsed output of the first oscillatory circuit is produced which remains locked to the then existing continuous wave signal out of the crystal-controlled oscillator and the pulsed outputs of the coaxial oscillators in the second oscillatory circuit similarly are locked.The improved elements disclosed, in addition to the improved modulator, include various configurations of coaxial oscillators which are easier to align than known oscillators of such type or which allow a greater number of such oscillators to be coupled to a resonant cavity than was possible according to the prior art. Finally, an improved probe and tuning arrangement for a resonant cavity is disclosed.
摘要翻译：公开了一种改进的固态发射器（及其元件）特别适用于射频脉冲操作。这种发射机包括以下组合：晶体振荡器，其产生连续波输出信号，其最终确定每个发射脉冲的频率; 第一振荡电路，包括谐振腔和至少一个并入有IMPATT二极管的正常静态同轴振荡器; 第二振荡电路，包括谐振腔和多个正常静态同轴振荡器，每个这样的振荡器都包含IMPATT二极管; 以及改进的调制器，用于周期性地致动所有IMPATT二极管，使得产生第一振荡电路的脉冲输出，其保持与晶体振荡器中的当时存在的连续波信号锁定，并且脉冲输出第二振荡电路中的同轴振荡器类似地被锁定。

7. 发明授权

US4115708A Fast-switching pulse modulator 失效
标题翻译：快速开关脉冲调制器
公开(公告)号：US4115708A
公开(公告)日：1978-09-19
申请号：US708219
申请日：1976-07-23
申请人： Shing-Gong Liu
发明人： Shing-Gong Liu
IPC分类号： H03K3/80 , H03K5/01 , H03K1/00 , H03K3/335
CPC分类号： H03K3/80
摘要： A fast-switching pulse modulator for generating a high-power output pulse in response to a low-power input pulse to apply a bias signal to a microwave apparatus having a high efficiency avalanche semiconductor diode such as a TRAPATT diode or IMPATT diode formed of GaAs. The modulator uses a transistor operating in a switching mode. The transistor is biased to a non-conducting state preferably by a negative D.C. bias voltage and switched to a first conducting mode upon application of the positive input pulse to the transistor. At this first conducting mode the transistor switches current from zero to a low-current level during which no RF output signal exists. Upon application of a threshold signal to, for example, the TRAPATT diode, the diode is triggered into the TRAPATT mode generating thereby an RF output pulse. As the diode is triggered into the TRAPATT mode the transistor is switched to a second conducting mode at a high current level. The rise time of the RF output pulse is fast as a result of the transistor switching from the low-current level to the high-current level.
摘要翻译：一种快速切换脉冲调制器，用于响应于低功率输入脉冲产生高功率输出脉冲，以将偏置信号施加到具有高效雪崩半导体二极管的微波装置，例如由GaAs形成的TRAPATT二极管或IMPATT二极管。调制器使用以开关模式工作的晶体管。晶体管优选地通过负直流偏置电压被偏置到非导通状态，并且在将正输入脉冲施加到晶体管时切换到第一导通模式。在该第一导通模式下，晶体管将电流从零切换到低电平，在此期间不存在RF输出信号。在向例如TRAPATT二极管施加阈值信号时，二极管被触发到TRAPATT模式，从而产生RF输出脉冲。当二极管触发到TRAPATT模式时，晶体管以高电流电平切换到第二导通模式。由于晶体管从低电流电平切换到高电流电平，RF输出脉冲的上升时间很快。

8. 发明授权

US4095275A Pulse width modulated sine cosine generator 失效
标题翻译：脉冲宽度调制正弦发电机
公开(公告)号：US4095275A
公开(公告)日：1978-06-13
申请号：US768130
申请日：1977-02-14
申请人： Francis A. Fluet
发明人： Francis A. Fluet
IPC分类号： G05D3/12 , G06F1/02 , G06F1/035 , G06G7/22 , G06J1/00 , H03K3/80 , G06F15/34
CPC分类号： G06F1/0353
摘要： The disclosure relates to a pulse width modulated sine-cosine wave generator in which all bits of a first counter, save the most significant bit, address a read only memory (ROM) which has a programmed output for each address. The ROM has sine and cosine half cycle bit outputs (logic ONES and ZEROES). The remaining bit outputs of the ROM are applied to control a variable modulo counter. When the variable modulo counter counts to its capacity or modulo, it is load enabled, and an end of state signal is sent to the first counter which then advances to its next state. When the variable modulo counter is enabled, it receives the ROM output which results from the previous state of the first counter. Thus, every time the first counter changes state, the ROM has impending a modulo output to apply to the input of the variable modulo counter; however, this modulo will not be loaded into the variable modulo counter until it has counts to existing modulo which is a function of the previous state of the first counter. Since the magnitude of the modulo of the variable modulo counter determines how long the first counter will remain in any one state, it therefore determines the duration of the ONES and ZEROES of the sine and cosine half cycle outputs of the ROM, and hence, the pulse width wave pattern. The most significant bit of the first counter, and the sine and cosine half wave ROM bit outputs, are applied to circuitry for algebraic logic operations to derive pulse width modulated sine and cosine waves.

9. 发明授权

US4017693A Synthesizer of multifrequency code signals 失效
标题翻译：多频码信号合成器
公开(公告)号：US4017693A
公开(公告)日：1977-04-12
申请号：US617488
申请日：1975-09-29
申请人： Bernard G. Roche , Jacques Majos , Jean-Louis A. Lardy
发明人： Bernard G. Roche , Jacques Majos , Jean-Louis A. Lardy
IPC分类号： H03K3/80 , H04M1/50 , H04Q9/12
CPC分类号： H04M1/505 , H03K3/80
摘要： The invention relates to a synthesizer of multifrequency code signals for a keyboard type telephone station, more particularly to a generator producing dialing signals or more generally recorder signals embodied by frequencies associated 2 by 2 in a 2-amongst-N code to represent decimal-notation digits and, if necessary, other signal-service signals. A dialing code of such a kind can be e.g. the SOCOTEL multifrequency code recommended by the CCITT.
摘要翻译：本发明涉及一种用于键盘式电话台的多频代码信号的合成器，更具体地说，涉及一种产生拨号信号的发生器或更为一般的记录器信号，其特征在于，以N / N代码中的2乘2相关联的频率来体现代表十进制符号数字以及必要时的其他信号服务信号。这种拨号代码可以是例如。由CCITT推荐的SOCOTEL多频代码。

10. 发明授权

US3949322A Stable pulse width control for astable multivibrators and the like 失效
标题翻译：稳定的多谐振荡器等的稳定脉冲宽度控制
公开(公告)号：US3949322A
公开(公告)日：1976-04-06
申请号：US561219
申请日：1975-03-24
申请人： Koji Morita
发明人： Koji Morita
IPC分类号： H03J9/04 , H03K3/017 , H03K3/282 , H03K3/80 , H03K3/283
CPC分类号： H03K3/2823 , H03J9/04 , H03K3/017
摘要： A pulse generator circuit including first, second and third transistors in which the first and second transistors are associated with resistors and capacitors to form an astable multivibrator coupled power supply. The third transistor is connected between the astable multivibrator and a variable resistor, the latter being connected to the power supply and adapted to control the pulse width of an output signal derived from the astable multivibrator whereby the pulse width of the output signal is controlled to be substantially uniform regardless of changes in the power supply voltage and ambient temperature.
摘要翻译：一种包括第一和第三晶体管的脉冲发生器电路，其中第一和第二晶体管与电阻器和电容器相关联，以形成不稳定的多谐振荡器耦合电源。第三晶体管连接在非稳态多谐振荡器和可变电阻器之间，可变电阻器连接到电源，并适用于控制从不稳定的多谐振荡器得到的输出信号的脉冲宽度，从而将输出信号的脉冲宽度控制为无论电源电压和环境温度如何变化，均基本均匀。

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