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    LOW POWER CLOCK SOURCE
    15.
    发明申请
    LOW POWER CLOCK SOURCE 有权
    低功耗时钟源

    公开(公告)号：US20150214955A1

    公开(公告)日：2015-07-30

    申请号：US14426571

    申请日：2013-09-06

    Applicant: Benton H. CALHOUN ,  Aatmesh SHRIVASTAVA

    Inventor： Benton H. Calhoun ,  Aatmesh Shrivastava

    IPC: H03L1/02 ,  H03B5/32

    CPC classification number: H03L1/026 ,  G06F1/04 ,  G06F1/324 ,  G06F1/3287 ,  G06F1/3296 ,  H03B5/32 ,  H03K3/011 ,  H03K3/0315 ,  H03L1/02 ,  H03L1/021 ,  H03L1/022

    Abstract: An ultra-low power clock source includes a compensated oscillator and an uncompensated oscillator coupled by a comparator circuit. In an example, the compensated oscillator is more stable than the uncompensated oscillator with respect to changes in one or more of temperature, voltage, age, or other environmental parameters. The uncompensated oscillator includes a configuration input configured to adjust an operating characteristic of the uncompensated oscillator. In an example, the uncompensated oscillator is adjusted using information from the comparator circuit about a comparison of output signals from the compensated oscillator and the uncompensated oscillator.

    Abstract translation: 超低功率时钟源包括补偿振荡器和由比较器电路耦合的未补偿振荡器。 在一个示例中，相对于温度，电压，年龄或其他环境参数中的一个或多个的变化，补偿振荡器比未补偿的振荡器更稳定。 无补偿振荡器包括配置为调整未补偿振荡器的工作特性的配置输入。 在一个示例中，使用来自比较器电路的信息来调整来自补偿振荡器和未补偿振荡器的输出信号的比较的未补偿振荡器。

    Wide-band tuner having a temperature-compensated microstrip resonator arrangement
    16.
    发明授权
    Wide-band tuner having a temperature-compensated microstrip resonator arrangement 失效
    具有温度补偿微带谐振器装置的宽带调谐器

    公开(公告)号：US4491976A

    公开(公告)日：1985-01-01

    申请号：US436357

    申请日：1982-10-25

    Applicant: Takeshi Saitoh ,  Shigeo Matsuura ,  Minoru Moteki ,  Hiroshi Hatashita

    Inventor： Takeshi Saitoh ,  Shigeo Matsuura ,  Minoru Moteki ,  Hiroshi Hatashita

    IPC: H04B1/26 ,  H01P7/08 ,  H03B5/18 ,  H03D7/16 ,  H03J7/06 ,  H03L1/02

    CPC classification number: H01P7/082 ,  H03D7/163 ,  H03J7/065 ,  H03L1/021 ,  H03B5/1852

    Abstract: A double-superheterodyne tuner for a television receiver comprises a tunable oscillator, a fixed oscillator, two mixer stages and a band-pass filter between the mixer stages, and operates at a GHz intermediate frequency between the mixer stages. The two oscillators and the bandpass filter each includes a microstrip line resonator formed in a dielectric body having substantially the same dielectric constant and dielectric constant temperature coefficient to each other, thereby compensating the variation of the resonant frequency in the resonator due to an ambient temperature variation.

    Abstract translation: 用于电视接收机的双超外差调谐器包括可调谐振荡器，固定振荡器，混频器级之间的两个混频器级和带通滤波器，并且在混频器级之间以GHz的中频进行操作。 两个振荡器和带通滤波器各自包括形成在彼此具有基本上相同的介电常数和介电常数温度系数的电介质体中的微带线谐振器，从而补偿由于环境温度变化而引起的共振频率的变化 。

    Method and apparatus for frequency stabilizing oscillators
    17.
    发明授权
    Method and apparatus for frequency stabilizing oscillators 失效
    频率稳定振荡器的方法和装置

    公开(公告)号：US4041416A

    公开(公告)日：1977-08-09

    申请号：US734718

    申请日：1976-10-22

    Applicant: Bernard Glance

    Inventor： Bernard Glance

    IPC: H03L1/02 ,  H03B3/06

    CPC classification number: H03L1/021

    Abstract: Frequency stabilization of an oscillator by compensating for slow frequency variations due to ambient temperature variations is achieved by diverting a fraction of the oscillator output to a waveguide line section having a coefficient of thermal expansion/.degree. C which is greater than the coefficient of relative frequency drift/.degree. C of the oscillator comprising, in sequence, a variable attenuator and a movable short. The variable attenuator is used to primarily adjust the amplitude of the diverted signal by one-half the desired amount preferably without varying the phase of the diverted signal. The movable short is primarily used for signal phase adjustment while simultaneously reflecting the attenuated signal back through the attenuator and towards the oscillator output. Temperature variations which cause impedance changes in the oscillator, and in turn frequency changes at the output thereof, similarly affect the components of the divergent waveguide line section to produce reactive load variations therein of corresponding magnitude and opposite sign to the impedance changes in the oscillator.

    Abstract translation: 通过补偿由于环境温度变化引起的慢频变化来振荡器的频率稳定是通过将​​一部分振荡器输出转移到具有大于相对频率漂移系数的热膨胀系数/ΔT的波导线段来实现的 该振荡器的顺序包括可变衰减器和可移动短路器。 可变衰减器用于主要将转向信号的幅度调整所需量的一半，优选地不改变转向信号的相位。 可移动短路主要用于信号相位调整，同时将衰减的信号反射回衰减器并朝向振荡器输出。 引起振荡器阻抗变化的温度变化，以及在其输出端频率变化的温度变化同样影响发散波导线路部分的组件，从而在其中产生与振荡器的阻抗变化相对应的幅度和相反符号的无功负载变化。

    Meteorological device employing a temperature compensated transmitter
    18.
    发明授权
    Meteorological device employing a temperature compensated transmitter 失效
    采用温度补偿式发射机的气象装置

    公开(公告)号：US3577100A

    公开(公告)日：1971-05-04

    申请号：US3577100D

    申请日：1969-02-28

    Applicant: US ARMY

    Inventor： ASKEW ROBERT E ,  JOHNSON HENRY C

    IPC: G01W1/08 ,  H03L1/02 ,  H04B1/02

    CPC classification number: G01W1/08 ,  H03L1/021

    Abstract: This invention relates to a meteorological device that is used to transmit atmospheric conditions such as temperature, pressure, humidity, or the like, to a remote station. The transmitter of such device utilizes temperature-compensating means with a highfrequency transistor oscillator thereby obtaining a highly stable output over a wide temperature range. Temperature compensation is provided by mounting the transistor directly onto dual resonant coaxial cavities with one cavity connected to the transistor emitter and the other cavity connected to the base lead. The cavities are constructed of dissimilar metals thereby providing temperature dependent capacitance. The cavities are provided with sets of adjusting screws to provide for adjustments in cavity resonance brought about by both lateral and transverse unequal expansion in the cavities.

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