-
1.发明公开
公开(公告)号：EP2793399A1
公开(公告)日：2014-10-22
申请号：EP14164290.0
申请日：2014-04-10
发明人： Villard, Patrick , Billiot, Gérard
摘要： L'invention concerne les oscillateurs à nanorésonateurs ou oscillateurs NEMS (de l'anglais "nanoelectromechanical systems", c'est-à-dire systèmes nano-électromécaniques).
On prévoit un circuit de mesure de la fréquence d'oscillation d'un résonateur (NMS), comportant une boucle d'asservissement de phase avec un oscillateur à fréquence contrôlée (VCO) et un comparateur de phase (CMPH). Le résonateur comporte une entrée d'excitation de la vibration et une entrée de polarisation dynamique (de jauges de contrainte). L'oscillateur à fréquence contrôlée applique une fréquence de polarisation f1 à l'entrée de polarisation. Un générateur de fréquence (GEN) fournit une fréquence intermédiaire fixe FI ; un mélangeur (MLG) reçoit les fréquences f1 et FI pour produire une fréquence d'excitation f0 somme ou différence de f1 et FI. Le comparateur de phase reçoit la fréquence FI et le signal de sortie du résonateur et produit un signal de commande à destination de l'oscillateur à fréquence contrôlée, asservissant indirectement la fréquence d'oscillation sur la fréquence de résonance du résonateur.-
2.发明授权
公开(公告)号：EP1141744B1
公开(公告)日：2003-09-24
申请号：EP99960897.9
申请日：1999-11-11
发明人： KUNERT, Martin
CPC分类号： H03L7/02 , G01S7/35 , G01S7/4008
-
3.发明授权Method and device relating to supervision and control of an oscillator signal 失效方法和系统的Oszillatrorsignals的监视和控制
公开(公告)号：EP0855792B1
公开(公告)日：2003-08-13
申请号：EP98850010.4
申请日：1998-01-20
CPC分类号： G01S7/4008 , G01S13/282 , G01S13/34 , H03B23/00 , H03C3/08 , H03L7/02
-
4.发明公开Method and device relating to supervision and control of an oscillator signal 失效Methode und Anordnung zurÜberwachungund Kontrolle eines Oszillatrorsignals
公开(公告)号：EP0855792A1
公开(公告)日：1998-07-29
申请号：EP98850010.4
申请日：1998-01-20
CPC分类号： G01S7/4008 , G01S13/282 , G01S13/34 , H03B23/00 , H03C3/08 , H03L7/02
摘要： The present invention relates to methods and devices for such control and supervision of an oscillator signal from a controllable oscillator that is done mainly to control the frequency variation of the oscillator signal. According to the invention, the controllable oscillator is controlled by a controlling voltage, which in turn is modified by a correction signal, generated in a control loop. A time discrete representation of a secondary phase is generated in the control loop, the secondary phase corresponding to a frequency being the difference between the frequency of the oscillator signal and a constant frequency. A time discrete approximation signal is generated in dependence of the time discrete representation of the secondary phase. A time discrete error signal is generated in dependence of the time discrete approximation signal, the time discrete error signal indicating the difference between the actual frequency slope of the oscillator signal and a desired frequency slope. The correction signal is generated in dependence of the time discrete error signal. The control loop can also be adaptive, meaning that data from one control sequence is being used in a later control sequence.
摘要翻译： 本发明涉及用于控制和监视来自可控振荡器的振荡器信号的方法和装置，主要用于控制振荡器信号的频率变化。 根据本发明，可控振荡器由控制电压控制，控制电压又由在控制回路中产生的校正信号进行修改。 在控制回路中产生次相位的时间离散表示，对应于频率为振荡器信号的频率与恒定频率之间的差的次级相位。 根据次级相位的时间离散表示产生时间离散近似信号。 根据时间离散近似信号产生时间离散误差信号，时间离散误差信号表示振荡器信号的实际频率斜率与期望频率斜率之间的差异。 根据时间离散误差信号产生校正信号。 控制回路也可以是自适应的，这意味着来自一个控制序列的数据正在以后的控制序列中使用。
-
公开(公告)号：EP0495699A1
公开(公告)日：1992-07-22
申请号：EP92400065.6
申请日：1992-01-10
发明人： Bel, Claude
摘要： La présente invention concerne un générateur de chauffage par haute fréquence comprenant un amplificateur (AP) à tube électronique dont la sortie est connectée à un circuit résonant (RE) couplé électromagnétiquement à une pièce à chauffer, et un oscillateur à fréquence commandée (VCO). L'oscillateur (VCO) fournit un signal haute fréquence à l'entrée de l'amplificateur (AP). Il comporte aussi un moyen pour mesurer le déphasage entre le courant fourni au circuit résonant (RE) et la tension à ses bornes et pour modifier la fréquence de l'oscillateur (VCO) en fonction de ce déphasage.
Applications notamment aux dispositifs de chauffage par induction électromagnétique, par pertes diélectriques ou par plasma.摘要翻译： 本发明涉及一种高频加热发生器，其包括电子管放大器（AP）和受控频率振荡器（VCO），电子管放大器（AP）的输出连接到电磁耦合到待加热工件的谐振电路（RE）。 振荡器（VCO）在放大器（AP）的输入端提供高频信号。 它还包括用于测量提供给谐振电路（RE）的电流与其端子处的电压之间的相位差并且用于根据该相移来修改振荡器的频率（VCO）的装置。 特别适用于通过电磁感应，介电损耗或等离子体加热器件。
-
公开(公告)号：EP0387294A1
公开(公告)日：1990-09-19
申请号：EP89900428.0
申请日：1988-10-20
申请人： AlliedSignal Inc.
CPC分类号： G01S13/953 , H03C3/09 , H03J7/06 , H03L7/02 , Y02A90/18
摘要： The invention comprises a weather radar system in which a magnetron transmitter is controlled in frequency by injecting therein a low power locking signal from a stable frequency source. Frequency lock between the source and the magnetron is maintained without requiring injection signals of excessive power by an automatic frequency control (AFC). The AFC determines the frequency and phase error between the injection signal and the magnetron output and adjusts the frequency of the source so as always to be within a narrow band of frequencies centered about the natural frequency of the magnetron. Over the long term, therefore, the frequency of the source will vary by an amount equal to the change in the natural frequency of the magnetron occurring during that time. Over the short term, however, the difference in frequency between the injection signal and the magnetron output is zero, while the phase difference is less than 90 DEG . The frequency source controlling the magnetron also serves as a frequency source for generating the several local oscillator frequencies required by the system receiver. Thus, the pulse to pulse transmitted signals, return signals and receiver i.f. signals all possess a high degree of phase coherence, readily permitting detection and determination of the doppler frequencies contained in the return signals.
-
7.发明公开Dental handpiece and oscillating circuit for driving a transducer assembly 失效一种牙科手持件和振荡器电路，用于驱动换能器。
公开(公告)号：EP0005377A1
公开(公告)日：1979-11-14
申请号：EP79300787.3
申请日：1979-05-08
发明人： Cranston, Dale O.
摘要： A dental handpiece is disclosed with a transducer assembly for holding a work tool which is caused to vibrate at substantially a resonant frequency by a variable frequency oscillator (20). The oscillator (20) sweeps through a spectrum of frequencies under control of oscillator control means (24). A maximum in the current flow through the transducer assembly occurs at a resonant frequency and is detected by maximum detecting means (22) which then generates a latch signal to stop the oscillator at substantially that resonant frequency. Hence the oscillator is correlated to the resonant frequency of the assembly, and subsequent changes in the loading conditions on the assembly do not affect the oscillator frequency.
摘要翻译： 一种牙科手持件是盘与换能器组件游离缺失用于保持作业工具的所有其被使得在谐振频率基本上由可变频率振荡器（20）振动。 振荡器（20）通过频率下振荡器控制装置（24）的控制的光谱扫描。 在通过换能器组件中的电流流动最大发生在谐振频率和由最大检测装置（22），然后基因率锁存信号以停止振荡器在基本上没有谐振频率检测。 因此，振荡器关联于组件的共振频率，并在组件上的载荷条件的后续变化不影响振荡器的频率。
-
8.发明公开TRACKING OF SIGNALS WITH AT LEAST ONE SUBCARRIER 审中-公开VERFOLGUNG VON SIGNALEN MIT MINDESTENS EINEMUNTERTRÄGER
公开(公告)号：EP3141931A1
公开(公告)日：2017-03-15
申请号：EP15002670.6
申请日：2015-09-14
申请人： Airbus DS GmbH
摘要： An embodiment of the invention relates to a system (200) for tracking of a received signal s(t) with at least one subcarrier, wherein the received signal represents a carrier signal modulated with a code signal and modulated with a subcarrier signal, wherein the system comprises the following independent and cooperatively operating loops: a phase lock loop (201-203) for tracking the carrier signal, a subcarrier lock loop (206-208) for tracking the subcarrier signal, which comprises a first controllable oscillator (206) and a first early-minus-late discriminator (207) for generating a control signal for the first controllable oscillator, wherein the first early-minus-late discriminator (207) generates the control signal based on a difference between the correlation results with replica of an advanced subcarrier signal E and the replica of a delayed subcarrier signal L, and a delay lock loop (204-205, 209) for tracking the code signal, which comprises a second controllable oscillator (209) and a second arctan discriminator (204) for generating a control signal for the second controllable oscillator, wherein the second arctan discriminator (204) generates the control signal based on the correlation results with a replica of a prompt code signal P multiplied with a prompt subcarrier signal P, and a replica of a prompt subcarrier signal P multiplied with the difference of an advanced and a delayed code signal E-L.
摘要翻译： 本发明的实施例涉及一种用于利用至少一个子载波跟踪接收信号s（t）的系统（200），其中接收信号表示用码信号调制并用子载波信号调制的载波信号，其中， 系统包括以下独立和协同操作的循环：用于跟踪载波信号的锁相环（201-203），用于跟踪副载波信号的副载波锁环（206-208），其包括第一可控振荡器（206）和 用于产生用于所述第一可控振荡器的控制信号的第一早期 - 迟迟鉴别器（207），其中所述第一早期 - 迟迟鉴别器（207）基于所述相关结果与所述第一可能振荡器的复制品之间的差产生所述控制信号 高级副载波信号E和延迟子载波信号L的副本以及用于跟踪码信号的延迟锁定环（204-205,209），其包括第二可控振荡器（20 9）和用于产生用于第二可控振荡器的控制信号的第二arctan鉴别器（204），其中所述第二arctan鉴别器（204）基于所述相关结果产生所述控制信号，所述相关结果与即时代码信号P的副本乘以 提示副载波信号P以及与提前和延迟码信号EL的差相乘的提示副载波信号P的副本。
-
公开(公告)号：EP2774271A1
公开(公告)日：2014-09-10
申请号：EP12769758.9
申请日：2012-09-20
申请人： Anharmonic B.V.
IPC分类号： H03L7/02
摘要： Electronic oscillator circuit, comprising a first oscillator, for supplying a first oscillation signal, a second oscillator, for supplying a second oscillation signal, a first controller for delivering the first control signal as a function of a phase difference between a first controller input and a second controller input of the first controller; a second controller for delivering the second control signal as a function of a phase difference between a first controller input of the second controller and a second controller input of the second controller; a resonator; at least a second resonance frequency, with a first phase shift dependent on the difference between the frequency of a second exciting signal and the second resonance frequency and processing means, for receiving the first oscillator signal and the second oscillator signal, determining their mutual proportion, looking up a frequency compensation factor in a prestored table and outputting a compensated oscillation signal.
-
公开(公告)号：EP2135353A4
公开(公告)日：2012-10-10
申请号：EP07855440
申请日：2007-12-04
申请人： ITS ELECTRONICS INC
发明人： EVSTRATOV LEONID V
CPC分类号： H03L7/085 , H03L7/02 , H03L7/095 , H03L7/099 , H03L7/1075 , H03L7/1077 , H03L2207/06
摘要： A floating DC-offset circuit for a phase detector. The circuit may provide a floating DC-offset to the phase detector, or to the voltage-controlled oscillator of the phase-locked loop. The circuit includes a voltage comparator, clock, digital resistor, and offset line to a DC-offset branch of the phase detector. The voltage comparator detects when the voltage at the output of the loop filter of the phase-locked loop has gone outside of a designated range, and activates the clock when the voltage is outside the designated range. The clock emits impulses that are counted by the digital resistor. The digital resistor shifts DC-offset at the DC-offset branch of the phase detector. The new DC-offset level is maintained once the loop filter output voltage has returned within the designated range. In an alternate embodiment, the DC-offset branch is connected to rough-tuning input of a wide-tuned voltage-controlled oscillator.
-
-
-
-
-
-
-
-
-
搜索结果
62 条记录 (耗时 0.013 秒)
