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Matches 51 - 100 out of 1,841

Document Document Title
WO/2014/177443A1
The invention relates to a method for controlling a piezoelectric device comprising a piezoelectric element (1) attached to a substrate (2), the substrate (2) and the piezoelectric element (1) being made of materials having different the...  
WO/2014/137666A1
A system includes first circuitry including first elements for operating in a low power mode; second circuitry including second elements for operating in a high-temperature mode; and one or more switching elements for selecting between t...  
WO/2014/095409A1
The invention relates to a method for stabilizing the clock frequency (f) of a microcontroller associated with a field device in automation engineering, wherein the field device is subjected to different process conditions depending on t...  
WO/2014/073503A1
[Problem] To provide a reference signal generation device that is able to continue outputting an appropriate reference signal by making a correction with consideration of humidity even when an appropriate reference signal cannot be obtai...  
WO/2014/045929A1
[Problem] To realize, at an extremely low cost, a standard signal generation device capable of performing self-running control even when an appropriate reference signal cannot be received. [Solution] The standard signal generation device...  
WO/2014/043531A1
A voltage controlled oscillator (VCO) core for cancelling a supply noise is described. The VCO core includes an input node that receives the supply noise. The VCO core also includes a noise path coupled to the input node. The VCO core ad...  
WO/2014/043455A1
A communications device includes a housing, an antenna carried by the housing, an oscillator carried by the housing to generate a reference signal, and an RF receiver carried by the housing, and coupled to the antenna and the oscillator,...  
WO/2014/029718A1
System for producing a system clock signal comprising a local oscillator configured to generate a first clock signal; a temperature detector configured to detect a temperature change above a critical value in an area including the local ...  
WO/2014/025575A1
A substantially temperature-independent LC-based oscillator uses bias control techniques. Temperature independence may be achieved by controlling the harmonic frequency content of the output of the oscillator by controlling the amplitude...  
WO/2013/127701A3
A simplified device for supplying voltage to the cathode of a mass spectrometer has a push-pull converter, a controlled rectifier (8, 10) being present outside the normal rectifier diodes (7, 9). The gate of the first transistor (8) is c...  
WO/2014/018401A1
Methods, apparatuses, systems and computer-readable media for addressing the aging of oscillation (XO) crystals are presented. Some embodiments may determine a change of age of the XO crystal since last prior use of the XO crystal. Embod...  
WO/2013/173010A4
Circuitry for generating a compliance voltage (V+) for the current sources and/or sinks in an implantable stimulator device in disclosed. The circuitry assesses whether V+ is optimal for a given pulse, and if not, adjusts V+ for the next...  
WO/2013/187919A1
A method in a mobile communication device includes: measuring a first temperature associated with a crystal configured to provide a reference signal having a frequency; measuring a second temperature associated with a component that is c...  
WO/2013/180989A1
An oscillator assembly including a base substrate with a cavity defining an insulative air pocket. A component substrate is seated on the base substrate. An oscillator and a combination heater/ temperature control assembly are located on...  
WO/2013/173010A1
Circuitry for generating a compliance voltage (V+) for the current sources and/or sinks in an implantable stimulator device in disclosed. The circuitry assesses whether V+ is optimal for a given pulse, and if not, adjusts V+ for the next...  
WO/2013/060608A3
A method and apparatus for compensating for temperature variation in a phase locked loop (PLL) includes receiving an error signal by a controller in which the error signal representative of an instantaneous frequency difference between a...  
WO/2013/149636A1
The present invention relates to a device for compensating temperature drift of a voltage controlled oscillator (VCO) in a phased locked loop (PLL), said voltage controlled oscillator (VCO) having at least one varactor arranged for contr...  
WO/2013/066939A1
The presently disclosed subject matter is directed to methods and apparatus enabling production of a stable output from a phase locked loop (PLL) circuit. A crystal controlled oscillator provides a reference signal to the PLL circuit. Te...  
WO/2013/023068A4
Systems and methods for controlling frequency output of an electronic oscillator to compensate for effects of a parameter experienced by the oscillator incorporate artificial neural network processing functionality for generating correct...  
WO/2013/022870A1
A circuit includes a controllable oscillator and a controller coupled to the controllable oscillator. The controller is configured to provide a current control and a gain control to the controllable oscillator. The gain control is config...  
WO/2013/023068A1
Systems and methods for controlling frequency output of an electronic oscillator to compensate for effects of a parameter experienced by the oscillator incorporate artificial neural network processing functionality for generating correct...  
WO/2012/119123A3
The LC tank of a VCO includes a main varactor circuit and temperature compensation varactor circuit coupled in parallel with the main varactor circuit. The main varactor is used for fine tuning. The temperature compensation varactor circ...  
WO/2012/159647A1
An integrated circuit device includes at least one controllable oscillator including a first control port and at least one further control port, at least one frequency control module including an output arranged to provide a frequency co...  
WO/2012/127395A1
A method and a system are described for controlling and stabilizing in time, as temperature changes, the frequency of a signal generated by a controllable oscillator (3), said method comprising the steps of: - measuring the frequency of ...  
WO/2012/112621A1
An apparatus includes a temperature measuring device within a thermally conductive package. A crystal within the package is thermally coupled to the temperature measuring device and subjected to a same temperature as the temperature meas...  
WO/2012/099793A1
New and highly stable oscillators are disclosed. Such an oscillator may include a first capacitor electrically connected to a first charging switch and a first discharging switch, a second capacitor electrically connected to a second cha...  
WO/2012/048034A3
A resonator of a VCO includes a fine tuning main varactor circuit, an auxiliary varactor circuit, and a coarse tuning capacitor bank circuit coupled in parallel with an inductance. The main varactor circuit includes a plurality of circui...  
WO/2012/049187A1
Device for generation of an output signal having a desired frequency, the device comprising: a micro-oven containing a MEMS oscillator, a temperature control system for maintaining the MEMS oscillator at a desired operation temperature i...  
WO/2012/048034A2
A resonator of a VCO includes a fine tuning main varactor circuit, an auxiliary varactor circuit, and a coarse tuning capacitor bank circuit coupled in parallel with an inductance. The main varactor circuit includes a plurality of circui...  
WO/2012/041413A1
An integrated circuit device for compensating frequency drift of a controllable oscillator is described. The integrated circuit device includes at least one compensation module including: an input for receiving at least an indication of ...  
WO/2012/017572A1
A MEMS oscillator is provided with: a feedback oscillation circuit that contains a MEMS resonator and an amplifier; and an automatic gain controller that receives output from the amplifier and controls the amplifier gain on the basis of ...  
WO/2012/017366A1
A resonator-controlled oscillator arrangement comprises a resonator-controlled oscillator of which the operating frequency is adjustable and a control circuit for setting the operating frequency of the oscillator. The control circuit is ...  
WO/2012/009429A1
Methods and apparatus for calibration and temperature compensation of oscillators having mechanical resonators are described. The method(s) may involve measuring the frequency of the oscillator at multiple discrete temperatures and adjus...  
WO/2011/108186A1
Disclosed is a PLL circuit which is provided with: a frequency dividing means (11), which divides the frequency of the output of the PLL circuit; a phase detector (12), which detects the phase difference between a reference clock signal ...  
WO/2011/101981A1
A frequency voltage converter circuit (13) is configured from a switching unit, which is further configured from switches (SW1, SW2); electrostatic capacitance elements (C, C10-C13); and switches (CSW0-CSW3). The electrostatic capacitanc...  
WO/2011/093708A1
An electrothermal frequency-locked loop (EFLL) circuit is described. This EFLL circuit includes an oscillator in a feedback loop. A drive circuit in the EFLL circuit generates a first signal having a fundamental frequency, and an electro...  
WO/2011/087762A1
A system, method, and apparatus for stabilizing interactions between an electrical generator and a nonlinear load are described. One illustrative embodiment includes an impedance element that is coupled to an output of the generator and ...  
WO/2011/086976A1
A reference frequency generator device (10) comprises a synchronization circuit (30); a temperature sensor unit (17); and a control unit (11). The synchronization circuit controls the reference frequency signals that a voltage control os...  
WO/2011/079253A1
Systems and methods for operating with oscillators configured to produce an oscillating signal having an arbitrary frequency are described. The frequency of the oscillating signal may be shifted to remove its arbitrary nature by applicat...  
WO/2011/063360A1
A phase locked loop apparatus includes an oscillator, a variable capacitance device, a selectable capacitance device, and a capacitance controller that is configured to provide a control signal to the selectable capacitance device. The s...  
WO/2011/053634A1
Techniques for synthesizing a signal having a desired frequency from an oscillation signal. In an aspect, a reference signal having a known frequency may be periodically used to determine a ratio between the desired frequency and the fre...  
WO/2011/016732A1
A method is disclosed for improving the effective frequency stability of a frequency reference source, wherein an algorithm utilizing parameters determined from frequency and temperature sensing measurements of the source or a similar so...  
WO/2010/143363A1
Disclosed are a resonator and an oscillator using the same, capable of broadly and finely correcting the resonant frequency of the vibrating element. The resonator comprises a vibrating element (101), electrodes (4, 5) arranged with a cl...  
WO/2010/125388A1
A communications device, such as a GNSS receiver comprises an oscillator, having a temperature-dependent frequency characteristic, for generating signals at a nominal frequency; receiver circuitry, for receiving transmitted wireless sign...  
WO/2010/117466A1
A fractional-N frequency synthesizer having reduced fractional switching noise and spurious signals is provided. The synthesizer includes a voltage controlled oscillator for providing an output signal. A fractional-N divider is responsiv...  
WO/2010/108032A1
An integrated circuit incorporating a bias circuit for a current-controlled oscillator (ICO) with improved power supply rejection ratio (PSRR) is described. The bias circuit for the ICO includes two error amplifiers. The first error ampl...  
WO/2010/106512A1
A voltage reference connects to a voltage-to-current converter to generate a reference current dependent on the reference voltage. Outputs of a toggle-type flip flop connect to switching transistors controlling the reference current char...  
WO/2010/104891A1
Techniques for setting a fine tuning input signal Vtune for a voltage-controlled oscillator (VCO) in a coarse tuning mode of the VCO. In an exemplary embodiment, the fine tuning input signal during coarse tuning mode is made temperature-...  
WO/2009/134372A3
Timing oscillators as well as related methods and devices are described. A timing oscillator may include a mechanical resonating structure with major elements and minor elements coupled to the major element. The timing oscillator can gen...  
WO/2010/039946A3
An oscillator assembly includes a substrate having a top surface, a bottom surface, and a plurality of side surfaces. At least one of the side surfaces has at least one castellation which is covered with conductive material and includes ...  

Matches 51 - 100 out of 1,841