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61. 发明申请

US20020145481A1 Method and apparatus to electronically enhance the tank quality factor of tank circuits and oscillators having tank circuits 审中-公开
标题翻译：用于电子增强具有储罐回路的储罐回路和振荡器的储罐品质因数的方法和装置
公开(公告)号：US20020145481A1
公开(公告)日：2002-10-10
申请号：US09793934
申请日：2001-02-27
发明人： Mihai Horia Murgulescu
IPC分类号： H03B005/12
CPC分类号： H03B5/1231 , H03B5/1215 , H03B5/1296
摘要： Methods and apparatus to control and enhance the quality factor of a tank circuit and oscillators having a tank circuit by feeding back a voltage to the tank circuit in opposition to the losses in the tank circuit. In an exemplary embodiment, a degenerate common emitter stage, responsive to the voltage across a differential circuit, has magnetically coupled inductors coupling voltages back to a differential tank in opposition to the IR voltage losses in the differential tank circuit. The amount of feedback may be controlled by the bias on the common emitter stage. Various embodiments are disclosed.
摘要翻译：控制和提高储罐回路的品质因数的方法和装置，并且通过与储罐回路中的损耗相反地将电压反馈到储罐回路的振荡器。在示例性实施例中，响应于差分电路两端的电压的简并公共发射极级具有磁耦合电感器，其将电压耦合到与差分谐振电路中的IR电压损耗相反的差动箱。反馈量可以由公共发射极级上的偏置来控制。公开了各种实施例。

62. 发明授权

US06249190B1 Differential oscillator 有权
标题翻译：差分振荡器
公开(公告)号：US06249190B1
公开(公告)日：2001-06-19
申请号：US09386957
申请日：1999-08-25
申请人： Dmitriy Rozenblit , William J. Domino , Mark Oskowsky
发明人： Dmitriy Rozenblit , William J. Domino , Mark Oskowsky
IPC分类号： H03B512
CPC分类号： H03B5/1231 , H03B5/1203 , H03B5/1218 , H03B5/124 , H03B5/1296 , H03B2201/0208
摘要： A differential oscillator based on a first Colpitts oscillator and a mirror image Colpitts oscillator that is coupled to the first Colpitts oscillator. This differential oscillator outputs differential voltage signals that are about 180 degrees out of phase. The differential oscillator may also be adapted to form a voltage controlled oscillator (VCO) such that the differential voltage signals output by the VCO can be varied. A transceiver for telecommunication devices such as cellular phones may use differential oscillators to generate a carrier signal on which a voice or data signal is modulated and the same differential oscillators to assist isolation of the voice or data signal from received signals.
摘要翻译：基于第一Colpitts振荡器和耦合到第一Colpitts振荡器的镜像Colpitts振荡器的差分振荡器。该差分振荡器输出大约相差180度的差分电压信号。差分振荡器还可以适于形成压控振荡器（VCO），使得由VCO输出的差分电压信号可以变化。用于诸如蜂窝电话的电信设备的收发机可以使用差分振荡器来产生其上调制了语音或数据信号的载波信号，并且使用相同的差分振荡器来辅助语音或数据信号与接收到的信号的隔离。

63. 发明授权

US5912596A Apparatus and method for frequency tuning an LC oscillator in a integrated clock circuit 失效
标题翻译：用于在集成时钟电路中对LC振荡器进行频率调谐的装置和方法
公开(公告)号：US5912596A
公开(公告)日：1999-06-15
申请号：US13280
申请日：1998-01-26
申请人： Uttam Shymalindu Ghoshal
发明人： Uttam Shymalindu Ghoshal
IPC分类号： H03B1/00 , H03B5/12 , H03B27/00 , H03K3/03 , H03K3/354 , H03B5/02
CPC分类号： H03K3/354 , H03B5/1215 , H03B5/1225 , H03B5/1228 , H03B5/1243 , H03B5/1293 , H03B5/1296 , H03K3/0322 , H03B2200/0078 , H03B2200/0098 , H03B2201/0208 , H03B2201/0216 , H03B27/00
摘要： A method and system in an integrated circuit for frequency tuning oscillator circuits. An oscillator circuit within an integrated circuit is formed on a substrate such that the oscillator circuit is coupled to an inductor component. The inductor component includes a first inductor positioned parallel to a second inductor such that a total effective inductance is associated with the first and second inductors. The first inductor is formed from a first spiral coil layer which is coupled to a second spiral coil layer on the substrate. The second inductor is formed of a single spiral coil layer on the substrate, wherein the single spiral coil layer provides an inductive feedback signal to the oscillator circuit when electrical current flows through the single spiral coil layer in response to current flowing through the first spiral coil layer and the second spiral coil layer. The feedback signal can be adjusted such that a change in a phase associated with the feedback signal results in an alteration of the total effective inductance, which in turn shifts a center frequency associated with the oscillator circuit thereby promoting frequency tuning of the oscillator circuit over a wide tuning range. In addition, a capacitor component can be connected to the oscillator circuit such that the capacitor component includes two series connected capacitors which have an associated effective capacitance. A change in the effective capacitance also results in a shift in the center frequency.
摘要翻译：用于频率调谐振荡器电路的集成电路中的方法和系统。集成电路中的振荡器电路形成在衬底上，使得振荡器电路耦合到电感器部件。电感器部件包括平行于第二电感器定位的第一电感器，使得总有效电感与第一和第二电感器相关联。第一电感器由耦合到衬底上的第二螺旋线圈层的第一螺旋线圈层形成。第二电感器由衬底上的单个螺旋线圈层形成，其中当电流响应于电流流过第一螺旋线圈的电流流过单个螺旋线圈层时，单个螺旋线圈层向振荡器电路提供感应反馈信号层和第二螺旋线圈层。可以调整反馈信号，使得与反馈信号相关联的相位的变化导致总有效电感的改变，该总有效电感又移动与振荡器电路相关联的中心频率，从而促进振荡器电路的频率调谐宽调谐范围。此外，电容器部件可以连接到振荡器电路，使得电容器部件包括具有相关联的有效电容的两个串联的电容器。有效电容的变化也导致中心频率的偏移。

64. 发明授权

US5345197A Battery powered magnetic pen having oscillator with improved efficiency and low power consumption 失效
标题翻译：电池供电的磁笔具有提高效率和低功耗的振荡器
公开(公告)号：US5345197A
公开(公告)日：1994-09-06
申请号：US003083
申请日：1993-01-11
申请人： Salvatore R. Riggio, Jr,
发明人： Salvatore R. Riggio, Jr,
IPC分类号： G06F3/041 , G06F3/033 , G06F3/046 , H03B5/12
CPC分类号： G06F3/03545 , H03B5/1203 , H03B5/1231 , H03B5/1296
摘要： A battery-powered, magnetic-pen oscillator includes a circuit having a first transistor arranged in a common emitter configuration. A feedback loop includes a transformer and the transistor that produce a loop phase shift of zero degrees and a loop gain of one to cause oscillation, and additionally creates the magnetic field emitted by the pen. A second transistor provides current mirror biasing for the first transistor and determines the amount of current flowing through the first transistor.
摘要翻译：电池供电的磁笔振荡器包括具有以共同发射器配置布置的第一晶体管的电路。反馈回路包括变压器和产生零度的环路相移的晶体管和一个产生振荡的环路增益，并且另外产生由笔发射的磁场。第二晶体管为第一晶体管提供电流镜偏置，并确定流经第一晶体管的电流量。

65. 发明授权

US4968953A Oscillation circuit for proximity switch 失效
标题翻译：接近开关的振荡电路
公开(公告)号：US4968953A
公开(公告)日：1990-11-06
申请号：US440329
申请日：1989-11-22
申请人： Yoshimi Kanda , Akio Matsumoto , Yasushi Matsuoka , Tsutomu Ajioka , Hirofumi Endo , Satoshi Motouji
发明人： Yoshimi Kanda , Akio Matsumoto , Yasushi Matsuoka , Tsutomu Ajioka , Hirofumi Endo , Satoshi Motouji
IPC分类号： G01V3/11 , H03B5/12 , H03K17/95
CPC分类号： H03K17/9547 , H03B5/1203 , H03B5/1231 , H03B5/1293 , H03B5/1296 , H03B2200/0038
摘要： An oscillation circuit of a proximity switch includes a parallel LC resonance circuit (L, C), an oscillation transistor (Tr6) controlled by an output voltage from the resonance circuit for switching a constant current and a feedback circuit (Tr2, Tr3) for feeding back a current flowing through the oscillation transistor to the resonance circuit. In the circuit, there is further disposed a feedback current increase circuit including a second transistor (Tr7) controlled by an output voltage from the resonance circuit and a resistor (R) connected in series to the second transistor. The resonance circuit is supplied via the feedback circuit with a feedback current obtained by adding a current flowing through the feedback current increase circuit and a current passing through the oscillation transistor, thereby developing a large change in the amplitude of the oscillation.

66. 发明授权

US4928314A Heterodyne stage having precise closed-loop control of the amplitude of the injection signal thereof 失效
标题翻译：异步阶段具有对其注入信号的振幅的精确闭环控制
公开(公告)号：US4928314A
公开(公告)日：1990-05-22
申请号：US302701
申请日：1989-01-27
申请人： Walter J. Grandfield , James G. Mittel , Walter L. Davis
发明人： Walter J. Grandfield , James G. Mittel , Walter L. Davis
IPC分类号： H03L7/00 , H03B5/04 , H03B5/12 , H03B5/36 , H03D7/00 , H03D7/12 , H04B1/16 , H04B1/26
CPC分类号： H03D7/12 , H03B5/1203 , H03B5/1231 , H03B5/1243 , H03B5/1296 , H03B2200/0008 , H03B2200/0082 , H03B2200/0094 , H03B5/362 , H03B5/368 , H03D2200/0025 , H03D2200/0043
摘要： A heterodyne stage of a receiver which includes a conventional mixer circuit and local oscillator circuit further includes a differential amplifier circuit which measures the amplitude of the injection signal generated by the local oscillator circuit and controls it precisely to a desired reference level by adjusting the current bias supply to the local oscillator circuit within a banded range to ensure start-up of the local oscillator upon energization and to protect against loss of injection signal under all operating conditions. The differential amplifier circuit provides for a precise amplitude reference setting and sufficient closed-loop gain for controlling the amplitude of the injection signal with a minimum of error between the measured and reference values.
摘要翻译：包括常规混频器电路和本地振荡器电路的接收机的外差级还包括差分放大器电路，其测量由本地振荡器电路产生的注入信号的幅度，并通过调整电流偏置将其精确控制到期望的参考电平在带状范围内提供给本地振荡器电路，以确保通电时本地振荡器的启动，并防止在所有工作条件下的注入信号丢失。差分放大器电路提供精确的幅度参考设置和足够的闭环增益，用于以测量值和参考值之间的最小误差来控制注入信号的幅度。

67. 发明授权

US4904964A Voltage control oscillator with modulation compensation 失效
标题翻译：带调制补偿的压控振荡器
公开(公告)号：US4904964A
公开(公告)日：1990-02-27
申请号：US290728
申请日：1988-12-27
申请人： Kwan K. Peng , Leng H. Ooi
发明人： Kwan K. Peng , Leng H. Ooi
IPC分类号： H03B5/12 , H03C3/09 , H03C3/22
CPC分类号： H03C3/0958 , H03B5/1203 , H03B5/1228 , H03B5/1243 , H03B5/1296 , H03C3/225 , H03B2200/0008 , H03B2200/0032 , H03B2200/004 , H03C2200/005 , H03C2200/0079
摘要： An improved voltage controlled oscillator (VCO) is provided whereby the control voltage is utilized for modulation compensation by a modulation compensation network (90). The modulating signal is variably coupled into the voltage controlled oscillator (70) to compensate for the variation in the VCO's gain factor to yield a constant modulation level over a frequency band.
摘要翻译：提供了一种改进的压控振荡器（VCO），由此通过调制补偿网络（90）将控制电压用于调制补偿。调制信号可变地耦合到压控振荡器（70）中以补偿VCO的增益因子的变化，从而在频带上产生恒定的调制电平。

68. 发明授权

US4754236A Frequency-doubling voltage-controlled oscillator 失效
标题翻译：倍频压控振荡器
公开(公告)号：US4754236A
公开(公告)日：1988-06-28
申请号：US38647
申请日：1987-04-15
申请人： Narguise Mamodaly , Didier Kaminsky
发明人： Narguise Mamodaly , Didier Kaminsky
IPC分类号： H03B19/05 , H03B1/00 , H03B1/04 , H03B5/12 , H03B5/18 , H03B19/00 , H03B19/14 , H03C3/22 , H03B5/00
CPC分类号： H03C3/225 , H03B5/1218 , H03B5/1228 , H03B5/1243 , H03B5/1296 , H03B19/00 , H03B19/14 , H03B2200/004 , H03B2200/0088 , H03B2200/0098 , H03B2201/0208 , H03B2202/027 , H03B5/1876
摘要： A frequency-doubling voltage-controlled oscillator (VCO) for use in the microwave frequency range has two channels which operate in parallel. A transistor is mounted as an oscillating system in each channel and its energy is collected on the drain electrode. The two transistors are mounted with their output currents in opposite phase, thus reducing FM noise in the vicinity of the carrier. In accordance with the invention, phase opposition is obtained by means of a varactor connected between the gates of the two transistors. The varactor is decoupled in direct current by means of two capacitors. In order to increase the range of frequencies, two additional varactors can be mounted in like manner on the source circuits of the two transistors.
摘要翻译：用于微波频率范围的倍频压控振荡器（VCO）具有并行操作的两个通道。晶体管作为振荡系统安装在每个通道中，其能量被收集在漏电极上。两个晶体管的输出电流相反地安装，从而降低载体附近的FM噪声。根据本发明，通过连接在两个晶体管的栅极之间的变容二极管获得相位相反。变容二极管通过两个电容器在直流电中解耦。为了增加频率范围，可以将两个附加的变容二极管以类似的方式安装在两个晶体管的源电路上。

69. 发明授权

US4593256A Oscillator with switched reactance resonator for wide bandwidth and serial bias connections for low power 失效
标题翻译：具有开关电抗谐振器的振荡器，适用于宽带宽和串行偏置连接，用于低功耗
公开(公告)号：US4593256A
公开(公告)日：1986-06-03
申请号：US625744
申请日：1984-06-28
申请人： Robert H. Bickley
发明人： Robert H. Bickley
IPC分类号： H03B1/00 , H03B5/12 , H03C3/22 , H03J5/24 , H03B5/00 , H03B5/04 , H03L1/00
CPC分类号： H03J5/244 , H03B5/1209 , H03B5/1231 , H03B5/1243 , H03B5/1262 , H03B5/1296 , H03B2200/0034 , H03B2200/004 , H03B2200/0048 , H03B2200/0056 , H03B2200/0062 , H03B2200/0082 , H03B2201/0208 , H03C3/22
摘要： A low power, wide bandwidth oscillator capable of oscillating at frequencies of greater than 350 MHz and capable of being implemented in relatively few parts is disclosed. A switching section controls the resonant frequency of a resonator and is connected in DC series with an amplifier. A regulator-buffer section simultaneously serves as a voltage regulator and RF signal buffer.
摘要翻译：公开了能够以大于350MHz的频率振荡并且能够以相对较少的部分实现的低功率宽带宽振荡器。开关部分控制谐振器的谐振频率，并与放大器连接成DC系列。调节器缓冲器部分同时用作电压调节器和RF信号缓冲器。

70. 发明授权

US4020310A Container for inductively heating food 失效
标题翻译：用于感应加热食物的容器
公开(公告)号：US4020310A
公开(公告)日：1977-04-26
申请号：US560396
申请日：1975-03-20
申请人： James J. Souder, Jr. , Lindsey E. Waldorf
发明人： James J. Souder, Jr. , Lindsey E. Waldorf
IPC分类号： A47J39/00 , H03B5/12 , H05B6/06 , H05B6/12 , H05B5/08
CPC分类号： H05B6/06 , H03B5/1203 , H03B5/1231 , H03B5/1296 , A47B2031/026 , H03B2200/001 , Y10S165/919
摘要： Meals for institutional feeding are arranged on trays in a central commissary with hot and cold food portions in separate containers. The containers for the hot items have bases formed with metallic plates and thermally insulated covers with internal metallic heat radiators. The trays are arranged in stacks in a refrigerated transport cart having spaced shelves which extend between the trays and include induction heating coils which produce heat generating currents in the metallic elements of the bases and covers of the hot food containers, heating these food portions while the other items are refrigerated. The hot food containers are provided in a variety of configurations each of which is heated at a different rate by the coils so the serving temperature of the food is determined by the type of its container.An alternative stationary heating mechanism has spaced shelves containing induction heating coils adapted to receive a plurality of stacked trays supported on a mobile cart. After the trays are interleaved with the stationary shelves, sections of the shelves are moved vertically to bring the coils into proximity to the metallic elements of the hot food containers.Alternative means are disclosed for heating the base and cover plates by other than inductive heating means.
摘要翻译：机构喂养的膳食安排在一个中央小卖部的托盘上，冷藏食品部分在不同的容器中。用于热物品的容器具有由金属板形成的底座和具有内部金属散热器的隔热盖。托盘被布置成堆放在具有在托盘之间延伸的间隔架的冷藏运输车厢中，并且包括感应加热线圈，其在热食品容器的基部和盖的金属元件中产生热量产生电流，加热这些食物部分，同时其他物品冷藏。热食品容器设置有各种构造，每个构造以不同的速率被线圈加热，因此食物的服务温度由其容器的类型决定。

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