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Matches 1 - 50 out of 1,875

Document Document Title
WO/2021/055155A1
A digital to analog converter (DAC) includes a plurality of DAC transistor devices having an input side configured to be selectively coupled to a system voltage based on a digital input signal and an output side configured to provide an ...  
WO/2020/254090A1
The invention relates to a temperature-controlled RF resonator (200) comprising a thermally insulating enclosure (110) inside which the following are implemented: - at least one resonating element (120) configured to deliver an RF output...  
WO/2020/215619A1
Techniques are described for post-compensation of frequency drift due to changes in crystal oscillator temperature during operation. For example, a clock system is coupled with a crystal oscillator, and can use a reference clock signal f...  
WO/2020/219215A1
Techniques are described herein that are capable of adjusting a center frequency of an adaptive voltage controlled oscillator (VCO) that is included in an adaptive phase lock loop (PLL) and/or a phase difference target of the adaptive PL...  
WO/2020/199216A1
The present application provides an oscillator and a device, relating to the field of electronic technology, for improving the performance of an oscillator. The oscillator comprises: a resonant circuit, configured to generate an oscillat...  
WO/2020/204740A1
A method and system are provided for estimating the g-sensitivity of a quartz oscillator, which includes rotating the quartz oscillator successively around each of a plurality of axes constituting a full-rank system, measuring a frequ...  
WO/2020/180621A1
A phase locked loop (PLL) circuit [ 200] includes a voltage controlled oscillator (VCO) [208], a first loop circuit [220], and a second loop circuit [222], The first loop circuit includes a first loop filter [206] configured to receive a...  
WO/2020/175987A1
Generating a signal having a controlled frequency can be a useful electronic building block in different electronic circuits with very divers functionalities. The current invention is a frequency generator for generating a controlled sig...  
WO/2020/175988A1
Generating a signal having a controlled frequency can be a useful electronic building block in different electronic circuits with very diverse functionalities.The current invention is a frequency generator for generating a controlled sig...  
WO/2020/173193A1
Disclosed is a satellite time transfer device, comprising a circuit board (10), an upper cover (20) and a quartz crystal oscillator (30). The upper cover (20) covers the circuit board (10) and encloses the circuit board to form a mountin...  
WO/2020/151847A1
The invention relates to a temperature stabilized oscillator circuit of a radio transceiver for a NB-IoT device comprising a crystal oscillator (XO) for providing a clock for operating the NB-IoT device, a phase locked loop (PLL) synthes...  
WO/2020/135948A1
The following technical problems have been addressed for D2D communications: 1) Compensation of temperature-based frequency drift of a local frequency in a wireless device based on cross-correlation with a reference frequency of a synchr...  
WO/2020/131840A1
Systems and methods are provided for compensating for mechanical acceleration at a reference oscillator, A reference oscillator provides an oscillator output signal and an accelerometer on a same platform as the reference oscillator, suc...  
WO/2020/015828A1
The invention discloses a method and apparatus for digital quartz temperature and drift compensation for a sleep timer of a NB-loT device. The object of the invention to find a way for an effective quartz crystal temperature and drift co...  
WO/2020/003246A1
There is provided a dual-output microelectromechanical system (MEMS) resonator. The MEMS resonator can be operated selectively and concurrently in an in-plane mode of vibration and an out-of-plane mode of vibration to obtain respectively...  
WO/2019/236319A1
Systems, methods, and devices of the present disclosure relate, generally, to compensating for frequency error of a reference signal supplied to a clock-tracking-loop due to temperature. Error characteristics of a crystal oscillator that...  
WO/2019/232610A1
A compensation circuit for an oven-controlled crystal oscillator serving as a reference for a phase-locked loop in holdover mode is disclosed. A non-linear function module generates a modified aging signal that is a non-linear function o...  
WO/2019/188990A1
[Problem] To provide a technique, with respect to an oscillating device that uses a crystal oscillator and stabilizes an oscillating frequency on the basis of an external clock signal, for stabilizing the oscillating frequency that is ou...  
WO/2019/160454A1
The present disclosure relates to a communication arrangement (10) comprising a first transceiver unit (1) and a second transceiver unit (2). The first transceiver unit (1) comprises a first control unit (3) and a first transmitter arran...  
WO/2019/145666A1
Temperature compensated oscillators are provided. In one arrangement, the oscillator comprises an oscillator circuit and a temperature compensation module. The temperature compensation module reduces temperature induced errors in the fre...  
WO/2019/125679A1
A master/slave configuration of a frequency locked Loop (FLL) decouples the process, target voltage, temperature (PVT) tracking goals of locking the loop from adapting the clock frequency in response to voltage droops in the supply. A ma...  
WO/2019/106157A1
The present invention relates to a crystal-free oscillator circuit (100) for channel-based high- frequency radio communication, the crystal-free oscillator circuit (100) comprising a crystal- free oscillator element (120) configured to p...  
WO/2019/096772A1
A phase-locked loop circuitry (200) having low variation transconductance design comprises a voltage controlled oscillator structure (308) to provide an output signal (Fosc) having an oscillation frequency. The voltage controlled oscilla...  
WO/2019/070315A1
A calibration system is provided for an oven controlled MEMS oscillator. The calibration system includes control circuitry that to separately selects predetermined target set-point values and controls a heater inside the oven controlled ...  
WO/2019/066842A1
Methods, systems, and circuitries are provided to generate clock signals of different qualities in a device. A method includes determining whether the device is operating in a mid power mode or a high power mode. In response to determini...  
WO/2019/067814A1
A temperature-compensating clock frequency monitor circuit may be provided to detect a clock pulse frequency in an electronic device that may cause erratic or dangerous operation of the device, as a function of an operating temperature o...  
WO/2019/048736A1
The invention relates to a frequency reference oscillator device and method of providing a frequency reference signal. The oscillator device comprises a first oscillator comprising a first resonator having first long-term stability and a...  
WO/2019/049071A1
A temperature stabilized device with improved response to changes in power supply voltage level, comprises a heater circuit for heating the device assembly and a temperature control circuit in which a heater control signal is adjusted wi...  
WO/2019/048737A1
The invention relates to a temperature-compensated microelectromechanical oscillator and a method of fabricating thereof. The oscillator comprises a resonator element comprising highly doped silicon and an actuator for exciting the reson...  
WO/2019/036338A1
Systems and processes disclosed herein determine the temperature of a crystal, such as a crystal that may be used in a crystal oscillator, using the reference crystal itself. The system can measure the temperature of the crystal without ...  
WO/2019/025447A1
A phase-locked loop circuit comprises an oscillator (308) having a plurality of operating curves and being suitable for generating an output signal (FOSC). In a calibration state the oscillator(308) is trimmed to an operating curve for u...  
WO/2019/020056A1
A method and apparatus for correcting the bandwidth of a filter. The method comprises: maintaining a process corner capacitance value C1 of a capacitor or a process corner resistance value R1 of a resistor in a filter to be unchanged; de...  
WO/2019/008879A1
The purpose of the present invention is to obtain an oscillation signal of high spectral purity. An oscillation device 10 pertaining to an embodiment is equipped with: an oscillator 11 wherein the oscillation frequency cannot be controll...  
WO/2018/113089A1
An oven controlled crystal oscillator device, and a frequency compensation method therefor. The device comprises: an oven controlled slot (22), a microcontroller (23), an oven controlled crystal oscillator (24) arranged in the oven contr...  
WO/2018/080750A1
Techniques for calibrating a crystal oscillator of a wireless device are provided. A method according to these techniques includes operating a transmit path of the wireless device at a first carrier frequency, configuring a receive path ...  
WO/2018/075452A1
A method and system for vibration correction in an oscillator. The method includes sensing vibrations along one or more axes via at least one accelerometer mounted on the oscillator, determining corrective factors based on an acceleratio...  
WO/2018/039538A1
Embodiments of the present disclosure include a microcontroller with a frequency test circuit, a device-under-test (DUT) input, and a calculation engine circuit. The calculation engine circuit is configured to compare a measured frequenc...  
WO/2018/014970A1
Methods and devices for synchronizing a device clock in a wireless network (e.g. a LPWAN) are disclosed. Example methods comprise identifying a device temperature, identifying a clock drift associated with the identified device temperatu...  
WO/2018/013327A1
A voltage regulator includes a band limited reference voltage. The band limited reference voltage is generated from a supply voltage combined with a feedback path to provide a band reject power supply rejection ratio (PSRR). The voltage ...  
WO/2018/004940A1
A packaged VCTCXO may include a crystal oscillator configured to output a signal of a particular frequency and a temperature sensor configured to measure an internal temperature of the crystal oscillator. In addition, the packaged VCTCXO...  
WO/2017/222751A1
Various embodiments of methods and systems for closed loop multimode sleep clock frequency compensation in a portable computing device are disclosed. An exemplary embodiment leverages a modem to determine a frequency shift on a sleep clo...  
WO/2017/151198A1
The present disclosure is directed towards systems and method for actively tuning a phase locked loop based on vibration excitation levels experienced by the phase locked loop. A bandwidth of the phase locked loop can be actively increas...  
WO/2017/151301A1
A method of generating a bandgap voltage in an electronic circuit includes generating a bandgap current. The method further includes operating the electronic circuit using the bandgap voltage and the bandgap current. The operating can be...  
WO/2017/120244A1
A signal generator configured to generate an oscillating signal with a temperature-compensated frequency. The signal generator includes a ring oscillator, and a complementary to absolute temperature (CTAT) current generator configured to...  
WO/2017/081634A1
A method for a resilient signaling of time and for a time synchronization of the users of a distributed network. The invention also comprises an apparatus for implementing such method.  
WO/2017/074704A1
The present invention generally relates to a system and method for high accuracy temperature control of an oven used to operate an electronic device, sensor or resonator ("device") at a fixed temperature. The fixed temperature operation ...  
WO/2017/053163A1
Certain aspects of the present disclosure provide methods and apparatus for temperature-dependent adjustment of a resonant circuit, such as that found in a voltage-controlled oscillator (VCO). Such adjustment may be performed in an effor...  
WO/2017/015834A1
The present invention relates to the technical field of quartz crystal oscillators, and particularly, to a directly-heating oven controlled crystal oscillator. In the present invention, the surface of a wafer is provided with wires, two ...  
WO/2017/003630A1
Methods, systems, and circuits for providing compensation for voltage variation are disclosed. A system includes: a voltage comparator configured to assert a control signal in response to detecting that one or more of power supply voltag...  
WO/2016/206384A1
A crystal oscillator circuit, a crystal oscillator circuit tuning method, and a storage medium, the crystal oscillator circuit tuning method comprising: on the basis of a current digital voltage signal and temperature compensation table,...  

Matches 1 - 50 out of 1,875