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91. 发明公开

EP0799496A4 FUNCTION-DIFFERENTIATED TEMPERATURE COMPENSATED CRYSTAL OSCILLATOR AND METHOD OF PRODUCING THE SAME 失效
标题翻译：温度补偿晶体振荡器用于生产不同的功能和过程
公开(公告)号：EP0799496A4
公开(公告)日：1998-12-30
申请号：EP96928806
申请日：1996-08-05
申请人： MOTOROLA INC
发明人： KNECHT THOMAS A , WATKINS TANDY M
IPC分类号： H01L23/50 , H03B5/32 , H03L1/02 , H01L23/00 , H01L29/00 , H03B5/36
CPC分类号： H03L1/028 , H01L2224/45144 , H01L2224/48247 , H01L2224/49171 , Y10T29/42 , H01L2924/00
摘要： A function-differentiated temperature compensated crystal oscillator (10) is disclosed having an integrated circuit, at least one capacitor and a piezoelectric element being electrically coupled to a leadframe, and being encapsulated in a molded package body (36). The leadframe includes two pluralities of leads (20, 26), each plurality accessing different functionalities of the temperature compensated crystal oscillator. In accordance with one embodiment of this invention, the first plurality of leads (20) may be excised preventing user access to internal functions of the oscillator. In accordance with another embodiment of this invention, the second plurality of leads (26) may be excised allowing user access to the internal functions of the oscillator. This configuration enables a single package to be used for different user applications and functions.

92. 发明公开

EP0800724A4 LAMP OSCILLATOR FOR ATOMIC FREQUENCY STANDARDS 失效
标题翻译： LAMP振荡器ATOM频标
公开(公告)号：EP0800724A4
公开(公告)日：1998-12-23
申请号：EP95943807
申请日：1995-12-19
申请人： EFRATOM TIME AND FREQUENCY PRO
发明人： CROCKETT JEFF D
IPC分类号： H03L5/02 , H03L1/02 , H03L7/26 , H05B20060101 , H05B41/38 , H05B41/392
CPC分类号： H05B41/392 , H03L7/26 , H05B41/382 , H05B41/3922
摘要： An apparatus for providing excitation of a vapor discharge lamp (12) includes a control circuit (20) for controlling an oscillator circuit (16) during an ignition mode of the vapor discharge lamp (12) to establish and maintain a substantially constant DC voltage at an output of an oscillator transistor (Q2) and to establish a current flow through the oscillator transistor (Q2) at a first current level sufficient to ignite the vapor discharge lamp (12), and for controlling the oscillator (10) after ignition of the vapor discharge lamp (12) to maintain the substantially constant DC voltage at the output of the oscillator transistor (Q2) while reducing the current flow through the oscillator transistor (12) from the first current level to a second current level, and in preferred embodiments, includes circuitry to suppress unwanted blocking oscillations and optimize the dynamic range of the control circuitry (20).

93. 发明公开

EP0858169A2 Mobile communication apparatus for intermittently receiving a broadcasting signal at a corrected reception timing 失效
标题翻译：移动通信装置，用于间歇地接收无线电信号至接收的校正后的时间
公开(公告)号：EP0858169A2
公开(公告)日：1998-08-12
申请号：EP98101207.3
申请日：1998-01-23
申请人： NEC CORPORATION
发明人： Tsujita, Shigeru, c/o NEC IC Microcomp. Syst. Ltd.
IPC分类号： H03L1/02 , H04B7/26 , H04B1/16 , H04L7/08
CPC分类号： H04W56/0035 , H04L7/0331 , H04L7/08 , H04W52/029 , Y02D70/00
摘要： In an apparatus for intermittently receiving a broadcasting signal at a reception timing which appears by a predetermined intermittent reception cycle and is determined by using a clock generator (5) for generating a clock signal of a clock frequency liable to vary due to an environment temperature, a first section (309) determines a maximum count by multiplying the predetermined intermittent reception cycle by the clock frequency at a particular time instant. Given the maximum count at the particular time instant, a second section (308) repeatedly carries out a counting operation of counting up a count to the maximum count in response to the clock signal to produce, when the count is equal to the maximum count, a coincidence signal specifying the reception timing. A third section (310) is for measuring the temperature at the particular time instant as a measured temperature to determine a monitor temperature zone corresponding to the measured temperature and for monitoring, as a subsequent measured temperature, the environment temperature after the particular time instant to produce a correction instruction signal when the subsequent measured temperature is out of the monitor temperature zone. At a correction time instant when the third section (310) produces the correction instruction signal, the first section (309) determines a corrected maximum count and give the corrected maximum count to the second section (308).
摘要翻译：在一种用于在其中通过预定的间歇接收周期出现，并是确定通过使用用于产生易于变化的时钟频率的时钟信号的时钟发生器（5）开采由于在环境温度下的接收定时间歇地接收广播信号，的第一部分（309）bestimmt最大计数通过在特定时刻乘以时钟频率在预定的间歇接收周期。给定在特定时刻的最大计数，第二区段（308）重复地执行响应于所述时钟信号的计数向上计数到最大计数值，以产生，当计数等于最大计数的计数术，一致信号指定的接收定时。第三部分（310）是用于测量温度在特定的时间点作为测量的温度来确定的矿监视器温度区对应于所测量的温度和用于监测，作为随后的测得的温度，所述特定时间瞬间后的环境温度当随后测量的温度超出显示器温度区的产生的校正指令信号。在校正时刻当第三部分（310）产生所述校正指令信号，所述第一部分（309）bestimmt一个修正的最大计数，并给经校正的最大计数到第二部分（308）。

94. 发明授权

EP0457348B1 Oscillation circuit 失效
标题翻译：振荡器电路
公开(公告)号：EP0457348B1
公开(公告)日：1997-11-12
申请号：EP91108039.8
申请日：1991-05-17
申请人： NEC CORPORATION
发明人： Nishijima, Kazunori
IPC分类号： H03B5/12 , H03L1/02
CPC分类号： H03L1/022 , H03B5/04 , H03B5/1209 , H03B5/1231 , H03B5/1243 , H03B5/1293

95. 发明授权

EP0682827B1 VOLTAGE CONTROLLED OSCILLATOR WITH EFFICIENT PROCESS COMPENSATION 失效
标题翻译：凭借高效的工艺补偿压控OZILLATOR
公开(公告)号：EP0682827B1
公开(公告)日：1997-03-19
申请号：EP94907929.7
申请日：1994-01-31
申请人： NATIONAL SEMICONDUCTOR CORPORATION
发明人： JELINEK, Jules, Joseph , DENG, Jay
IPC分类号： H03K3/01 , H03L1/00
CPC分类号： H03K3/011 , H03L1/00
摘要： A voltage controlled oscillator (VCO) provides an output signal with an output frequency that varies only minimally for any given input control voltage despite variations in the manufacturing process, temperature and supply voltage. The VCO also includes a multistage ring oscillator which includes a plurality of series-connected current-starved inverter stages. The VCO utilizes a first current source to provide a substantially constant current independent of process, temperature and supply voltage and a second current source to provide a variable current that varies in response to process, temperature and supply voltage. Both current sources generate a respective current signal independent of the input signal to the VCO. An attenuator, responsive to the VCO's input voltage signal (typically from a phase-locked loop filter) provides a control current signal to the ring oscillator. The attenuator receives a supply current created by subtracting the second current from the first current, and utilizes a differentiation subcircuit that attenuates the supply current in response to changes in an input voltage to produce a current control signal that sets the current level in the ring oscillator's cells. The frequency of oscillation of the ring oscillator is determined by the control current signal. Additionally, the VCO circuit may include a current mirror for receiving the control current signal from the attenuator and mirroring the control current signal to the ring oscillator.

96. 发明公开

EP0740421A3 Temperature-compensated piezoelectric oscillator 失效
标题翻译： Temperaturkompensierter压电式振荡器
公开(公告)号：EP0740421A3
公开(公告)日：1997-02-26
申请号：EP96106646.1
申请日：1996-04-26
申请人： SEIKO EPSON CORPORATION
发明人： Oka, Manabu, c/o Seiko Epson Corp. , Kikushima, Masayuki, c/o Seiko Epson Corp. , Ichinose, Kazunari, c/o Seiko Epson Corp.
IPC分类号： H03L1/02
CPC分类号： H03L1/026 , H03L1/028
摘要： Disclosed is a temperature-compensated piezoelectric oscillator (1) that is easily IC packaged and easily adjusted after assembly, and which is adapted to compensate for temperature dependent frequency changes of a piezoelectric vibrator (9) used as the oscillation frequency determining element without the need for an externally connected variable reactance element. The oscillator (1) comprises in addition to the vibrator (9), an oscillator circuit (8) for driving the vibrator (9), a temperature sensor circuit (2) for sensing the ambient temperature T, and a variable power supply circuit (15) for applying to the oscillator circuit (8) a power supply voltage VDD(T) which is controlled in response to the sensed temperature by the temperature sensor circuit 2 in such a way as to compensate the frequency-temperature characteristic of the vibrator (9).
摘要翻译：公开了一种温度补偿压电振荡器（1），其易于IC封装并且易于在组装之后进行调整，并且其适于补偿用作振荡频率确定元件的压电振动器（9）的与温度相关的频率变化，而不需要用于外部连接的可变电抗元件。振荡器（1）除了振动器（9）之外还包括用于驱动振动器（9）的振荡器电路（8），用于感测环境温度T的温度传感器电路（2）和可变电源电路 15），用于向振荡电路（8）施加电源电压VDD（T），该电源电压VDD（T）由温度传感器电路2响应于感测温度而被控制，以补偿振动器的频率 - 温度特性（ 9）。

97. 发明公开

EP0741930A1 LOW POWER TEMPERATURE COMPENSATED CRYSTAL OSCILLATOR 失效
标题翻译：温度补偿型晶体振荡器低消耗
公开(公告)号：EP0741930A1
公开(公告)日：1996-11-13
申请号：EP95933059.0
申请日：1995-09-08
申请人： MOTOROLA INC.
发明人： CONNELL, Lawrence, E. , COLLINS, Timothy, J. , KELLER, Anthony, F. , MARVIN, Dennis, F. , BUSHMAN, Michael, L.
IPC分类号： H03L1 , H03B5
CPC分类号： H03L1/023
摘要： A low power temperature compensated crystal oscillator (10) is disclosed. The temperature compensated crystal oscillator (10) has a crystal oscillator circuit (12), a voltage controlled reactance element (30), a temperature compensation network (50), and a programmable DC-DC converter network (60) having an output (62) connected to the voltage controlled reactance element (30), the temperature compensation network (50) or both. Much of this structure is adapted for use in an integrated circuit, and provides the advantage of minimizing power and current consumption.

98. 发明公开

EP0727876A1 A temperature compensated crystal oscillator 失效
标题翻译： Temperaturkompensierter Quarzoszillator
公开(公告)号：EP0727876A1
公开(公告)日：1996-08-21
申请号：EP96106179.3
申请日：1994-01-25
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Ishizaki, Toshio , Satoh, Yuki , Hashimoto, Koji
IPC分类号： H03L1/02
CPC分类号： H03L1/025 , H03L1/023 , H03L1/028
摘要： A temperature compensated crystal oscillator including: an oscillation circuit having a quartz crystal resonator and a control terminal, for providing an oscillating signal determined by the quartz crystal resonator and a control signal, the control signal being applied to the control terminal; a temperature detecting circuit for detecting an operation temperature and outputting a temperature signal based on the operation temperature; and a control signal generating circuit for receiving the temperature signal from the temperature detecting circuit, generating the control signal based on a characteristic curve, and outputting the control signal to the control terminal; the characteristic curve essentially consisting of a plurality of straight lines and being an approximation of an ideal control curve in a predetermined operation temperature range including the operation temperature, the ideal control curve having a relationship between the control signal and the temperature signal for ideally compensating a fluctuation of a frequency of the oscillating signal against changes of the operation temperature, the predetermined operation temperature range being divided into temperature ranges, each of the plurality of straight lines corresponding to one of divided temperature ranges.
摘要翻译：一种温度补偿晶体振荡器，包括：具有石英晶体谐振器和控制端子的振荡电路，用于提供由所述石英晶体谐振器确定的振荡信号和控制信号，所述控制信号被施加到所述控制端子; 温度检测电路，用于检测操作温度并基于操作温度输出温度信号; 以及控制信号发生电路，用于从温度检测电路接收温度信号，基于特性曲线产生控制信号，并将控制信号输出到控制端; 所述特性曲线基本上由多条直线组成，并且是包括操作温度的预定操作温度范围内的理想控制曲线的近似值，具有控制信号和温度信号之间的关系的理想控制曲线用于理想地补偿振荡信号的频率相对于操作温度的变化的波动，预定的操作温度范围被分为温度范围，对应于分割的温度范围之一的多个直线中的每一个。

99. 发明公开

EP0724334A1 Double-sided oscillator package and method of coupling components thereto 失效
标题翻译： Doppelseitige Oszillatoranordnung und Methode zum Anbringen von Elementen daran
公开(公告)号：EP0724334A1
公开(公告)日：1996-07-31
申请号：EP95112907.1
申请日：1995-08-17
申请人： MOTOROLA, INC.
发明人： Knecht, Thomas
IPC分类号： H03L1/04
CPC分类号： H03B5/32 , H01L25/16 , H01L2224/48091 , H01L2924/181 , H01L2924/3025 , H03H9/08 , H01L2924/00014 , H01L2924/00 , H01L2924/00012
摘要： A double-sided oscillator package (200) is provided. The package (200) has an open-top receptacle (212) adapted to receive an electronic component and an open-bottom receptacle (214) adapted to receive at least a piezoelectric element and a cover, forming a hermetic environment. The electronic component (226) and piezoelectric element (234), can be suitably connected to the package (200). The package (200) is designed to be mass-producable, and is compact, easily surface mounted and provides a narrow profile.
摘要翻译：提供双面振荡器封装（200）。包装（200）具有适于容纳电子部件的开口插座（212）和适于容纳至少压电元件和盖子的开口底部插座（214），形成密封环境。电子部件（226）和压电元件（234）可以适当地连接到封装（200）。包装（200）被设计成可批量生产，并且紧凑，易于表面安装并且提供窄的轮廓。

100. 发明公开

EP0641080A3 Method and apparatus for reducing jitter and improving testability of an oscillator 失效
标题翻译：为减少抖动的方法及装置，提高振荡器的可测试性。
公开(公告)号：EP0641080A3
公开(公告)日：1996-06-12
申请号：EP94110939.9
申请日：1994-07-14
申请人： MOTOROLA, INC.
发明人： Westwick, Alan L.
IPC分类号： H03L1/02 , H03M1/10 , G01R31/28 , H03B5/36 , H03K3/354
CPC分类号： H03K3/0231 , G01R31/2824 , H03J2200/10 , H03K3/0307
摘要： An oscillator such as a pulled-crystal oscillator (50) provides low clock jitter by converting a sinusoidal voltage on a crystal's (51) terminals into a digital square wave with a comparator (56). The oscillating frequency of the crystal (51) is pulled by selectively switching in extra capacitance through capacitor digital-to-analog converters (CDACs) (57, 58). The oscillator (50) has built-in testability which allows individual capacitors in the CDACs (57, 58) to be quickly tested for opens. A scan path is connected to the inputs of the CDACs (57, 58) for selecting individual capacitors. A first input terminal of the comparator (56) is precharged before a capacitor under test (171) is connected. A comparison voltage is provided to the second input terminal. The capacitor under test (171) is determined to be functional if, after being connected to the first input terminal of the comparator (56), it discharges the first input terminal to a voltage below the comparison voltage, causing the comparator (56) to switch.

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