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WO/2008/112182A1 |
Crystal oscillator control and calibration is disclosed. Temperature and frequency control circuits included on a printed circuit board (PCB) comprising a crystal oscillator are used to determine, for each of a plurality of set points in...
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WO/2008/056104A1 |
An active radio frequency tag transponder having active temperature compensation of frequency generating means (114), which active radio frequency tag transponder comprises: (i) the frequency generating means (114); (ii) transceiver mean...
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WO/2008/048563A2 |
A crystal oscillator emulator integrated circuit comprises a first temperature sensor that senses a first temperature of the integrated circuit. Memory stores calibration parameters and selects at least one of the calibration parameters ...
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WO/2008/048093A2 |
The invention relates to an integrated circuit, comprising at least a voltage controlled oscillator (VCO) for generating an output signal with an output frequency (f), where the voltage controlled oscillator (VCO) is arranged to be activ...
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WO/2008/043629A1 |
A representative measurement indicating a relative oscillation speed of a reference clock during a representative calibration period is ascertained. Multiple calibration periods are defined including first and second calibration periods....
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WO/2008/033243A2 |
An oscillator includes an oscillator circuit and a resonator that produces an output frequency. A temperature compensation circuit is coupled to the oscillator circuit. The temperature compensation circuit stabilizes the output frequency...
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WO/2008/002395A2 |
An oscillator having improved frequency stability which includes an oscillator circuit and an SC-cut resonator connected with the oscillator circuit. The SC-cut resonator has a first turning point. A temperature compensation circuit is c...
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WO/2008/000100A1 |
In the LC parallel resonant circuit in accordance with the invention, the line resistance (RS) of the coil (L) is neutralized by means of the voltage signal from an auxiliary voltage source (UA1), which is connected in series with the ca...
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WO/2007/149764A2 |
There are many inventions described and illustrated herein. In one aspect, the present inventions relate to a temperature measurement system comprising (1) a first microelectromechanical resonator to generate a first output signal having...
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WO/2007/144690A1 |
A mobile radio terminal (10) includes a system clock (52) having a controller (68), a frequency generator (60) for outputting a clock signal and a temperature sensor for detecting an operating temperature of the frequency generator. The ...
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WO/2007/062577A1 |
A phase-locked loop and method of improving clock precision are provided. Control processor , temperature sensor and memory are added to the phase-locked loop. Adjustment value of a digital synthesizer is suitably selected by the control...
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WO/2006/102184A1 |
A discrete clock generator (100, 200, 300) and/or a timing and frequency reference using an LC-oscillator topology, having a frequency controller (3015), a stable resonant frequency (fo), provided to other circuitry such as a processor o...
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WO/2006/102211A1 |
A clock generator and/or a timing and frequency reference comprising an LC (405) oscillator with a frequency controller (420). Stability is provided over variation in a selected parameter such as temperature and fabrication process varia...
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WO/2006/096760A1 |
The present invention concerns a RF link for low-data-rate applications (1-100 bps) , using one or more transmitters to communicate with one or more receivers, at enhanced ranges. The receiver of the present invention can rapidly search,...
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WO/2006/074899A2 |
The invention relates to a proximity switch (10), particularly an inductive proximity switch, comprising an oscillator (12) having an, at least in part, internally compensated feedback network (15), which can be influenced by a target to...
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WO/2006/072540A1 |
In a controlled oscillator having a resonator (2) and at least one amplifier (1) with positive feedback, the oscillation signal, which is present at the resonator (2), is fed to an analogue-to-digital converter (21). The analogue-to-digi...
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WO/2006/057811A1 |
A receiver reference oscillator frequency correction system and method are described that provides a receiver with a greater ability to lock onto relatively weak radio frequency signals by determining and estimating an amount of frequenc...
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WO/2006/053417A1 |
A communications subsystem for a wireless device for correcting errors in a reference frequency signal. The communications subsystem comprises a frequency generator for generating the reference frequency signal and a closed loop referenc...
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WO/2006/031784A1 |
A method and device bracket are presented for reconfigurable radiation desensitivity. The method includes: accepting a radiated wave from a source such as a transmitter, antenna, microprocessor, electrical component, integrated circuit, ...
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WO/2006/008620A1 |
A method provides a temperature controlled frequency source. The method reduces the effects of temperature variations on an operating frequency of the temperature controlled frequency source by temperature compensating the temperature co...
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WO/2006/000611A1 |
Method for stabilizing the frequency of a frequency synthesizer by means of a reference oscillator unit coupled to a voltage controlled oscillator (VCO) and a frequency synthesizer, wherein the synthesizer is provided with a phase locked...
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WO/2005/109029A1 |
The invention relates to a radio communication beacon. According to the invention, the beacon employs an oscillator (OCXO) and is characterised in that it comprises a connection (INH) which can be used to inhibit the temperature regulati...
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WO/2005/107057A1 |
A method for compensating a temperature-related frequency error of an oscillating quartz in a real-time clock, particularly for mobile radio terminals, GPS receivers or the like. A frequency error temperature curve describing the frequen...
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WO/2005/101664A1 |
An integrated circuit Voltage Controlled Oscillator (VCO) in a battery-powered device, such as a cellular phone, can be configured to tune across a fairly wide frequency range using a relatively narrow control voltage range. The frequenc...
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WO/2005/092044A2 |
In various embodiments, the invention provides a clock generator and/or a timing and frequency reference, with multiple operating modes, such power conservation, clock, reference, and pulsed modes. The various apparatus embodiments inclu...
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WO/2005/092042A2 |
In various embodiments, the invention provides a frequency controller and a temperature compensator for frequency control and selection in a clock generator and/or a timing and frequency reference. The various apparatus embodiments inclu...
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WO/2005/084037A2 |
The present invention concerns a method and apparatus for setting a frequency reference in an integrated receiver decoder (IRD). More specifically, the present invention discloses an electrical circuit arrangement in which the voltage co...
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WO/2005/078861A2 |
An inverted-F ferroelectric antenna is provided. The antenna comprises a counterpoise, or groundplane, and a radiator structure having a first end and a second end. A capacitor, formed from a ferroelectric dielectric is interposed betwee...
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WO/2005/076480A1 |
Method for stabilizing the frequency of a MEMS (Micro Electro Mechanical Systems) reference oscillator, and a MEMS reference oscillator, wherein the method comprises following steps: using two or more MEMS components (OSCILLATOR1 - OSCIL...
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WO/2005/071842A2 |
There are many inventions described and illustrated herein. In one aspect, the present invention is directed to a compensated microelectromechanical oscillator, having a microelectromechanical resonator that generates an output signal an...
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WO/2005/034357A1 |
A strained-silicon voltage controlled oscillator (VCO) includes a first pchannel metal oxide semiconductor (PMOS) device having a strained-silicon layer coupled to a second PMOS device having a strained-silicon layer.
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WO/2005/025057A2 |
The electromechanical transducer (1) has a resonator element (20) and an actuator (30) for inducing an elastic deformation of the resonator element (20) dependent on the electrical input signal. For temperature stabilization, the electro...
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WO/2005/025070A1 |
A method to control a frequency oscillator, as a crystal oscillator, and to form an oscillating circuit in order to produce a frequency oscillator improved to its qualities, in which the frequency of reference oscillator (1) is changed b...
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WO/2005/011120A1 |
The present invention relates to a transceiver adapted to transmit a radio-signal and to compensate for a drift frequency of a voltage controlled oscillator (VCO) included in said transceiver, wherein said transceiver comprises compensat...
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WO/2005/004329A1 |
In a method for synchronizing a mobile station with the base station in a mobile communication system, a reference-frequency oscillator is re-adjusted. To enable an inexpensive reference-frequency oscillator of simple construction to be ...
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WO/2004/109926A1 |
A downhole crystal-based clock that is substantially insensitive to the factors that cause frequency deviation. The clock may be maintained at a predetermined temperature using a temperature sensing device and a heating device where the ...
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WO/2004/102809A1 |
The invention relates to a time base comprising two oscillators, the frequency of one of which is lower than the other, the latter being intermittently attenuated, generating a first time reference (REF) with the same intermittence, stab...
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WO/2004/100380A1 |
A first phase-locked loop (PLL) circuit (301) includes an input for receiving a timing reference signal from an oscillator 303, a controllable oscillator circuit (805) supplying an oscillator output signal, and a multi-modulus feedback d...
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WO/2004/100378A1 |
A chip oscillator module (10) and its verification method in which the chip oscillator module is formed of a DCO (digital controlled oscillator) (11), a selector circuit (13), a programmable ROM (read only memory) (14), a register (15), ...
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WO/2004/095240A2 |
On-die voltage and/or frequency detectors. For one aspect, an adaptive frequency clock generation circuit includes a droop detector to detect a supply voltage level and to cause the frequency of an on-die clock signal to be adjusted acco...
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WO/2004/091100A1 |
In a device for detecting the temperature of an oscillator crystal 2, arranged on a carrier, in particular in a mobile radio apparatus, the detected temperature should be as exact as possible a replica of the temperature to which the osc...
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WO/2004/091090A1 |
The invention concerns a radio beacon for transmitting a distress signal. The beacon includes a signal generator which includes a non-ovenised crystal oscillator to generate a carrier frequency for a transmission signal. A radio frequenc...
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WO/2004/084403A1 |
An oscillator having a given characteristic in the relation between a physical quantity and the drift value of the oscillation frequency. The variation of the characteristic is adaptively corrected, and the oscillation frequency drift va...
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WO/2004/080836A1 |
The invention relates to a closure (1, 14, 20) for a liquid container (11), comprising a plug (2, 17, 21) manufactured from at least partially flexible material with a recess (18, 22) which is arranged at least substantially in axial dir...
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WO/2004/057370A1 |
A radar-based distance measurement apparatus comprises a microwave circuit comprising a frequency generator which produces a microwave frequency signal, the frequency of which is modulated by an amount determined by a modulation signal a...
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WO/2004/047302A1 |
The present invention is directed towards a method and devices for regulating the frequency of a frequency source (22). A control unit (24) supplies a new control value to the frequency source, said value being determined by the frequenc...
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WO/2004/045062A1 |
A measured waveform of correction voltage required for different temperatures is divided by an interval of the smallest resolution of a D/A converter. From each of the division points of the measured waveform, a voltage digital value rep...
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WO/2004/040693A1 |
A control device and a control method capable of high−speed controlling the impedance of a plurality of elements output signal in order to preferably maintain output signal of a non−linear system. The control device comprises first a...
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WO/2004/032326A1 |
A driver device for a voltage-controlled oscillator (10), comprising an unstable voltage source (14), a voltage regulator (22), a driver (18) for producing a control voltage (U2) for the oscillator (10), and a feedback loop (20) controll...
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WO/2004/030215A1 |
An input reference timing signal oscillator of a phase-locked loop has a computer algorithm which adaptively models the multiple frequencies of an oscillator following a training period. The oscillator (119) is part of a phase-locked loo...
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