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1. 发明授权

US06608531B2 Temperature compensated crystal oscillator package 失效
公开(公告)号：US06608531B2
公开(公告)日：2003-08-19
申请号：US10001353
申请日：2001-10-31
申请人： James L. Stolpman , Mark D. Schrepferman
发明人： James L. Stolpman , Mark D. Schrepferman
IPC分类号： H03L100
CPC分类号： H03L1/028
摘要： An improved temperature compensated quartz oscillator, which includes a package for mounting compensating circuitry over a cavity instead of on a planar layer, reduces the chip failure rate by preventing undesired contact of the compensation circuitry with the material forming the layer upon which the circuitry is mounted.

2. 发明授权

US06831525B1 Oscillator arrangements with improved frequency stability 失效
标题翻译：具有改善频率稳定性的振荡器布置
公开(公告)号：US06831525B1
公开(公告)日：2004-12-14
申请号：US10320451
申请日：2002-12-17
申请人： Steve A. Beaudin , Hongwei Xu
发明人： Steve A. Beaudin , Hongwei Xu
IPC分类号： H03L100
CPC分类号： H03L1/027 , H03L1/00 , H03L1/028
摘要： Two oscillators produce respective signals at two different frequencies each dependent upon a parameter such as temperature in accordance with a polynomial with coefficients which are different for the two oscillators. A ratio of the frequencies is inverse to a ratio of a selected one of the coefficients of the polynomials. A mixer produces, at a sum or difference frequency of the two signals, an output signal for which a corresponding coefficient of a respective polynomial is substantially zero. The arrangement can be cascaded to produce zero coefficients for a plurality of terms in the polynomial.
摘要翻译：两个振荡器以两个不同的频率产生各自的信号，每个信号取决于诸如温度的参数，其根据具有对于两个振荡器不同的系数的多项式。频率的比率与多项式的所选系数中的一个的比率成反比。混频器以两个信号的和或差频率产生相应多项式的对应系数基本上为零的输出信号。这种布置可以级联以产生多项式中的多个项的零系数。

3. 发明授权

US06788161B2 Integrated oscillator circuit that inhibits noise generated by biasing circuitry 有权
公开(公告)号：US06788161B2
公开(公告)日：2004-09-07
申请号：US10292103
申请日：2002-11-12
申请人： Ari Vilander
发明人： Ari Vilander
IPC分类号： H03L100
CPC分类号： H03B5/04
摘要： Disclosed is an oscillator circuit (1A) for use in a local oscillator of an RF communications device (100) that communicates over an RF channel. The oscillator circuit includes an oscillator circuit portion (2) and a bias circuit portion (3) coupled to the oscillator circuit portion for setting the operating point of the oscillator transistors. The oscillator circuit further includes a switch (6) for selectively one of connecting or disconnecting the bias circuit portion from the oscillator circuit portion, and a capacitance (5) for storing an output of the bias circuit portion during a time that the switch disconnects the bias circuit portion from the oscillator circuit portion, thereby maintaining control of the operating point of the oscillator transistors of the oscillator circuit portion. When the switch is open any noise generated by the biasing circuit portion is prevented from reaching the oscillator circuit portion, thereby reducing the overall noise floor of the oscillator circuit. The capacitance may have a value that is measured in tens of picofarads, and the oscillator circuit, including the capacitance, is formed within an integrated circuit.

4. 发明授权

US06677827B2 Temperature compensated crystal oscillator and method for adjusting output frequency thereof 失效
标题翻译：温度补偿晶体振荡器及其输出频率调整方法
公开(公告)号：US06677827B2
公开(公告)日：2004-01-13
申请号：US10083404
申请日：2002-02-27
申请人： Chul Young Jung
发明人： Chul Young Jung
IPC分类号： H03L100
CPC分类号： H03L1/028
摘要： A temperature compensated crystal oscillator has a crystal oscillating unit and at least one part for temperature compensation and oscillation circuits. The temperature compensated crystal oscillator has a layered structure and a planar thin film resistor. The layered structure has an upper layer on which the crystal oscillator and the part are mounted, and at least one layer on which conduction patterns are formed. The planar thin film resistor is arranged on an upper surface of a bottom layer of the layered structure so as to adjust an output frequency of the temperature compensated crystal oscillator. Therefore, an area occupied by the resistor for adjusting the output frequency can be minimized by inserting the resistor between the layers.
摘要翻译：温度补偿晶体振荡器具有晶体振荡单元和至少一个用于温度补偿和振荡电路的部件。温度补偿晶体振荡器具有分层结构和平面薄膜电阻器。分层结构具有安装晶体振荡器和部件的上层以及形成有导电图案的至少一个层。平面薄膜电阻器布置在层状结构的底层的上表面上，以调节温度补偿晶体振荡器的输出频率。因此，通过在各层之间插入电阻器，能够最小化用于调节输出频率的电阻器占据的面积。

5. 发明授权

US06630872B1 Digital indirectly compensated crystal oscillator 有权
标题翻译：数字间接补偿晶体振荡器
公开(公告)号：US06630872B1
公开(公告)日：2003-10-07
申请号：US09910182
申请日：2001-07-20
申请人： Jean-Claude Lanoue , Daniel Domey
发明人： Jean-Claude Lanoue , Daniel Domey
IPC分类号： H03L100
CPC分类号： H03L1/026 , H03L1/022 , H03L1/028
摘要： A temperature compensation technique is disclosed which allows to obtain a compensated clock signal. The temperature compensation technique comprises the use of a thermal model of the oscillator with a temperature sensor in order to accurately compute the oscillator frequency, irrespective of time-variations and rates.
摘要翻译：公开了一种允许获得经补偿的时钟信号的温度补偿技术。温度补偿技术包括使用具有温度传感器的振荡器的热模型，以便准确地计算振荡器频率，而不管时间变化和速率如何。

6. 发明授权

US06300840B1 Microwave/millimeter-wave integrated circuit 失效
标题翻译：微波/毫米波集成电路
公开(公告)号：US06300840B1
公开(公告)日：2001-10-09
申请号：US09457679
申请日：1999-12-09
申请人： Takuo Kashiwa , Yoshinobu Sasaki , Naoki Tanahashi
发明人： Takuo Kashiwa , Yoshinobu Sasaki , Naoki Tanahashi
IPC分类号： H03L100
CPC分类号： H03B5/04
摘要： A microwave/millimeter-wave integrated circuit (IC) realizes stable oscillation by reducing time-based variation of a load impedance. This IC connects an oscillator to an input terminal of a Lange coupler and connects to the isolation port of the Lange coupler a terminating resistor having a resistance equal to the load impedance connected to the output terminals of the Lange coupler. This connection stabilizes load impedance to the oscillator, and reduces variation in the oscillation frequency as a result of changes in load impedance.
摘要翻译：微波/毫米波集成电路（IC）通过减少负载阻抗的基于时间的变化实现稳定的振荡。该IC将振荡器连接到Lange耦合器的输入端子，并连接到Lange耦合器的隔离端口，其端接电阻器具有等于连接到Lange耦合器的输出端子的负载阻抗的电阻。这种连接稳定了振荡器的负载阻抗，并且由于负载阻抗的变化而降低了振荡频率的变化。

7. 发明授权

US06788159B2 Temperature compensated oscillator, adjusting method thereof, and integrated circuit for temperature compensated oscillator 失效
标题翻译：温度补偿振荡器及其调整方法，温度补偿振荡器集成电路
公开(公告)号：US06788159B2
公开(公告)日：2004-09-07
申请号：US10252951
申请日：2002-09-23
申请人： Masayuki Takahashi , Toru Matsumoto
发明人： Masayuki Takahashi , Toru Matsumoto
IPC分类号： H03L100
CPC分类号： H03L1/025 , H03J2200/10 , H03L1/028 , H03L7/08
摘要： A temperature compensated oscillator keeping the area of a capacitor array and the bit number of a memory from increasing and allowing for high precision is provided. A adjusting method of such a resonator and an integrated circuit for temperature compensated oscillation are also provided. A capacitor array and a variable capacitance diode are connected and used as a load capacitance in an oscillation circuit, and the capacitance value of the former is digital-controlled and that of the latter is analog-controlled, so that the amount of compensation data necessary for the digital control is reduced and highly precise temperature compensation is permitted.
摘要翻译：提供了一种温度补偿振荡器，其保持电容器阵列的面积和存储器的位数增加并允许高精度。还提供了这种谐振器的调节方法和用于温度补偿振荡的集成电路。电容器阵列和可变电容二极管连接并用作振荡电路中的负载电容，前者的电容值是数字控制的，而后者的电容值是模拟控制的，因此需要的补偿数据量为了减少数字控制，允许高精度的温度补偿。

8. 发明授权

US06734748B2 Phase-locked loop oscillator with counter bypass 有权
标题翻译：带旁路的锁相环振荡器
公开(公告)号：US06734748B2
公开(公告)日：2004-05-11
申请号：US10207575
申请日：2002-07-29
申请人： Darrell Livezey
发明人： Darrell Livezey
IPC分类号： H03L100
CPC分类号： H03L7/0802 , H03L7/095 , H03L7/191 , H03L7/193
摘要： A phase-locked loop circuit includes one loop for regulating phase of a VCO with respect to a reference source. In another loop, VCO frequency is compared to frequency of a crystal oscilator. Digital counters divide the frequency of the crystal oscillator and VCO to a common reference frequency. Once the frequency loop is locked, the counter at the output of the crystal oscillator is bypassed. The counter is bypassed by a flip-flop circuit clocked by the crystal oscillator and receiving a scaled input from the VCO. While the VCO frequency error is in the frequency range of correction capability of the Phase-locked loop, the output of the flip-flop will duplicate the output of the counter. Thus, the counter can be bypassed and shut off.
摘要翻译：锁相环电路包括一个用于调节VCO相对于参考源的相位的环路。在另一个环路中，将VCO频率与晶体振荡器的频率进行比较。数字计数器将晶体振荡器和VCO的频率分频为公共参考频率。一旦频率环被锁定，晶体振荡器输出端的计数器被旁路。计数器被由晶体振荡器时钟的触发器电路旁路，并从VCO接收定标输入。当VCO频率误差在锁相环的校正能力的频率范围内时，触发器的输出将与计数器的输出重复。因此，可以绕过和关闭计数器。

9. 发明授权

US06570461B1 Trim effect compensation circuit 失效
标题翻译：修剪效果补偿电路
公开(公告)号：US06570461B1
公开(公告)日：2003-05-27
申请号：US09990642
申请日：2001-11-21
申请人： Steven J. Fry , Raymond M. Carlisle
发明人： Steven J. Fry , Raymond M. Carlisle
IPC分类号： H03L100
CPC分类号： H03B5/366 , H03B5/368
摘要： An oscillator assembly has a voltage controlled crystal oscillator that produces a stable reference frequency. The voltage controlled crystal oscillator is connected to an electronic frequency adjust voltage. A temperature compensation circuit is connected to the voltage controlled crystal oscillator. The temperature compensation circuit provides a temperature compensation voltage to the voltage controlled crystal oscillator. A trim effect compensation circuit is connected between the temperature compensation circuit and the electronic frequency adjust voltage. The trim effect compensation circuit adjusts the temperature compensation voltage in response to a change in the electronic frequency adjust voltage.
摘要翻译：振荡器组件具有产生稳定参考频率的压控晶体振荡器。压控晶体振荡器连接电子频率调节电压。温度补偿电路连接到压控晶体振荡器。温度补偿电路为压控晶体振荡器提供温度补偿电压。温度补偿电路和电子频率调整电压之间连接一个微调效应补偿电路。调整效果补偿电路根据电子频率调整电压的变化来调整温度补偿电压。

10. 发明授权

US06542044B1 Integrated frequency source 有权
标题翻译：集成频率源
公开(公告)号：US06542044B1
公开(公告)日：2003-04-01
申请号：US09659230
申请日：2000-09-11
申请人： Roy W. Berquist , Richard A. Freeman , Robert A. Newgard
发明人： Roy W. Berquist , Richard A. Freeman , Robert A. Newgard
IPC分类号： H03L100
CPC分类号： H03L7/1974 , H03L1/025 , H03L7/1976
摘要： An integrated frequency source with an integrated frequency standard and an integrated frequency synthesizer is disclosed. A voltage-controlled oscillator in the frequency standard is eliminated with a resulting improvement in phase noise. A reference frequency in the frequency standard is provided directly to the frequency synthesizer. The integrated frequency source is put on frequency over temperature by storing reference frequency errors over temperature in a lookup table, measuring the temperature, and calculating in a microprocessor synthesizer control data that offsets the synthesizer to compensate for reference frequency errors.
摘要翻译：公开了具有集成频率标准的集成频率源和集成频率合成器。消除了频率标准中的压控振荡器，从而导致相位噪声的改善。频率标准中的参考频率直接提供给频率合成器。通过将查找表中的参考频率误差存储在查找表中，测量温度，并在微处理器合成器中控制数据来补偿合成器以补偿参考频率误差，将集成频率源放在频率过高的温度上。

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