Class / Patent application number | Description | Number of patent applications / Date published |
331065000 | WITH DEVICE RESPONSIVE TO EXTERNAL PHYSICAL CONDITION | 49 |
20090051445 | LOOSELY-COUPLED OSCILLATOR - Aspects and embodiments of the present invention provide a loosely-coupled oscillator including a sensor circuit and an electronic device that are not physically connected. In some embodiments, the electronic device includes an amplifier stage and a feedback network and the sensor circuit includes one or more LC circuits. When electromagnetically connected, the sensor circuit and electronic device form an oscillator that is adapted to output an oscillation signal. The resonant frequency of the sensor circuit can be obtained based on the oscillation signal. The sensor circuit may be implanted into an object and the resonant frequency of the sensor circuit can be used to determine characteristics of the object. | 02-26-2009 |
20090201095 | OSCILLATOR DEVICE AND OPTICAL DEFLECTION DEVICE - An oscillator device includes an oscillation system including an oscillator and a resilient supporting member, a driving member configured to supply a driving force to the oscillation system based on a driving signal, and a driving frequency control unit configured to control a driving frequency of a driving signal to be outputted to the driving member, wherein, when an oscillation frequency of the oscillator is to be changed from a current oscillation frequency to a target oscillation frequency, the driving frequency control unit temporarily outputs, to the driving member, a driving signal having a driving frequency which is made different from the target oscillation frequency, being changed from the current driving frequency and beyond the target oscillation frequency, thereby to cause the driving member to drive the oscillation system. | 08-13-2009 |
20100231308 | SURFACE ACOUSTIC WAVE SENSOR AND SENSING METHOD USING SURFACE ACOUSTIC WAVE - A surface acoustic wave (“SAW”) sensor includes; a first signal generator which generates a first signal having a predetermined frequency bandwidth using a pseudo random sequence, a second signal generator which generates a second signal with a predetermined frequency, a signal blender which blends the first signal with the second signal to generate a blended signal having the predetermined frequency bandwidth with the predetermined frequency as a center frequency, a wave generator which generates a surface acoustic wave using the blended signal, which converts the surface acoustic wave into a third signal after the surface acoustic wave travels a predetermined distance, and which outputs the third signal, and a signal detector which detects a change in the third signal from the wave generator to sense a substance bound to the wave generator. | 09-16-2010 |
20110121907 | Driver device, physical quantity measuring device, and electronic instrument - A driver device that forms an oscillation loop with a vibrator and causes the vibrator to produce driving vibrations includes a current-voltage converter that converts a current that flows through the vibrator into a voltage, an output circuit that causes the vibrator to produce the driving vibrations based on a signal that is converted into a voltage with respect to a given voltage, and a high-pass filter that is provided in the oscillation loop between the current-voltage converter and the output circuit. The driver device causes the vibrator to produce the driving vibrations while changing a reference potential of the high-pass filter, and then causes the vibrator to produce the driving vibrations while fixing the reference potential. | 05-26-2011 |
331066000 | Temperature or light responsive | 45 |
20080204153 | OSCILLATOR - Provided is an oscillator including: a MEMS resonator for mechanically vibrating; an output oscillator circuit for oscillating at a resonance frequency of the MEMS resonator to output an oscillation signal; and a MEMS capacitor for changing a capacitance thereof caused by a change in a distance between an anode electrode and a cathode beam according to an environmental temperature. | 08-28-2008 |
20080224785 | Temperature tracking oscillator circuit - A temperature-dependent oscillator includes a first current source, wherein a first current provided by the first current source has a positive temperature coefficient, a second current source serially connected to the first current source, wherein a second current provided by the second current source has a negative temperature coefficient, and a capacitor serially connected to the first current source and parallel connected to the second current source. | 09-18-2008 |
20080224786 | Apparatus and method for temperature compensating an ovenized oscillator - An oscillator assembly includes an oscillator circuit that is configured to generate a frequency signal. A temperature compensation circuit is in communication with the oscillator circuit and adapted to adjust the frequency signal in response to changes in temperature. The oscillator and temperature compensation circuits are located within an oven. A heater and a temperature sensor in communication with the heater are also both located in the oven. The temperature sensor is adapted to directly control the heater in response to changes in temperature. In one embodiment, the oscillator components are mounted to a ball grid array substrate which, in turn, is mounted on a printed circuit board. In this embodiment, a resonator overlies the ball grid array substrate and a lid covers and defines an oven and enclosure for the resonator and the ball grid array substrate. The oscillator and temperature compensation circuit are defined on the ball grid array substrate. | 09-18-2008 |
20080303601 | REFERENCE OSCILLATOR AND ITS USE - A reference clock circuit ( | 12-11-2008 |
20090021314 | Structure for a Phase Locked Loop with Adjustable Voltage Based on Temperature - A design structure for an apparatus for utilizing a single set of one or more thermal sensors, e.g., thermal diodes, provided on the integrated circuit device, chip, etc., to control the operation of the integrated circuit device, associated cooling system, and high-frequency PLLs, is provided. By utilizing a single set of thermal sensors to provide multiple functions, e.g., controlling the operation of the integrated circuit device, the cooling system, and the PLLs, silicon real-estate usage is reduced through combining circuitry functionality. Moreover, the integrated circuit device yield is improved by reducing circuitry complexity and increasing PLL robustness to temperature. Furthermore, the PLL circuitry operating range is improved by compensating for temperature. | 01-22-2009 |
20090027132 | Varactor Device with Reduced Temperature Dependence - The invention discloses a varactor device ( | 01-29-2009 |
20090058543 | Temperature detecting semiconductor device - There is provided a technique which is capable of detecting a temperature of a semiconductor device with high precision. A temperature detection circuit detecting a temperature of a semiconductor device includes a first short-cycle oscillator generating a first clock signal having positive temperature characteristics with respect to a frequency, a second short-cycle oscillator generating a second clock signal having negative temperature characteristics with respect to the frequency, and a temperature signal generation unit generating a temperature signal which is varied according to the temperature of the semiconductor device based on the first and second clock signals. | 03-05-2009 |
20090167447 | System and Method for Providing Temperature Correction in a Crystal Oscillator - A system and method for providing temperature compensation in a oscillator component (such as a crystal oscillator component) that includes a closely-located temperature sensing device. The crystal oscillator component in example systems and methods is exposed to a temperature profile during a calibration procedure. Temperature and frequency data are collected and applied to coefficient generating function according to a temperature compensation model to generate a set of coefficients that are used in the temperature compensation model in an application device. The generated coefficients are stored in a coefficient memory accessible to an application device during operation. | 07-02-2009 |
20090231049 | Oscillation circuit - An oscillation circuit of the present invention includes: an oscillation section for which an output frequency is controlled based on a control signal depending on an ambient temperature; a temperature compensation circuit for supplying the control signal to this oscillation section; and a switching switch circuit consisting of an output buffer and a temperature sensor output switch for which ON and OFF are controlled so that any one of an oscillation output from the oscillation section and a temperature sensor output from the temperature compensation circuit is outputted. The temperature sensor output switch is structured so that transfer gate switches are connected in a two-stage serial manner and a third switch connected to a fixed potential is sandwiched between these connection points. When an oscillation output is outputted, the transfer gate switches are OFF and the third switch is ON and, when a temperature sensor output is outputted, the transfer gate switches are ON and the third switch is OFF. | 09-17-2009 |
20090256641 | OSCILLATOR WITH A LOW POWER CONSUMPTION - A package device, such as an oscillator, includes a package module, a circuit module, a plurality of conductive pins, and a plurality of conductive arms. The package module defines an airtight space therein. The circuit module is disposed in the airtight space in the package module. Each of the conductive pins extends into the airtight space in the package module. Each of the conductive arms is disposed in the airtight space, and has a first end that is connected to the circuit module, a second end that is connected to a respective one of the conductive pins, and an intermediate portion that extends between the first and second ends thereof and that has a length longer than the shortest distance between the first and second ends thereof. | 10-15-2009 |
20090302954 | Temperature Compensation Circuit and Method - Disclosed are various embodiments of temperature-compensated relaxation oscillator circuits that may be fabricated using conventional CMOS manufacturing techniques. The relaxation oscillator circuits described herein exhibit superior low temperature coefficient performance characteristics, and do not require the use of expensive off-chip high precision resistors to effect temperature compensation. Positive and negative temperature coefficient resistors arranged in a resistor array offset one another to provide temperature compensation in the relaxation oscillator circuit. | 12-10-2009 |
20100102892 | CRYSTAL OSCILLATOR - A crystal oscillator includes a crystal unit and a voltage-variable capacitive element that is connected to the crystal unit in series, the crystal oscillator varying an oscillation frequency by applying a control voltage between terminals of the voltage-variable capacitive element and by varying a series equivalence capacitance at a side of the oscillator circuit when observed between terminals of the crystal unit. The crystal oscillator further includes a first resistor and a second resistor for dividing the control voltage. At least one of the first resistor and the second resistor is a temperature sensing resistor, the resistance of which changes depending on a temperature, so as to correct frequency temperature characteristics of the oscillation frequency. | 04-29-2010 |
20100156545 | SYSTEM AND METHOD FOR USE OF A SWITCHED MODE TCXO FOR RECEIVER APPLICATIONS - Systems and methods are disclosed herein for using a switched mode TCXO or VC-TCXO in a coherent receiver application where the switched mode TCXO or VC-TCXO may operate either in an active compensation mode to compensate for temperature induced frequency error or in a second fixed compensation mode where the TCXO or VC-TCXO is not compensated for temperature. The switched mode TCXO or VC-TCXO is operated in the active compensation mode when receiver performance may be improved from a reduction in the range of oscillator frequency error. The switched mode TCXO or VC-TCXO may be switched to operate in the fixed compensation mode when receiver performance is sensitive to discontinuities in the phase, frequency, and/or frequency rate of the oscillator clock when temperature compensation is applied. In addition, the switched mode VC-TCXO may operate in a transparent mode to allow change to the oscillator or a latched mode to prevent change to the oscillator. The flexibility to switch between the operating modes allows the receiver to benefit from a reduced oscillator frequency error or a faster oscillator frequency switching, resulting in faster signal acquisition time, and still allows the receiver to operate in modes requiring a discontinuity-free oscillator. | 06-24-2010 |
20100171559 | LOW TEMPERATURE COEFFICIENT OSCILLATOR - A low temperature coefficient oscillator including a current generator, a first and a second voltage generator, an amplifier, a resistor, a switch, a capacitor and an oscillating unit is provided. The current generator generates a first through a fourth current according to a control signal. The first voltage generator generates a first voltage according to the first current. The second voltage generator generates a second voltage according to the second current and a frequency signal. The amplifier generates the control signal according the first and second voltages. The resistor is coupled between a first terminal of the switch and ground, and a first terminal thereof receives the third current. The switch is conducted or not according the frequency signal. The capacitor is coupled between a second terminal of the switch and ground. The oscillating unit generates the frequency signal according to the fourth current and a voltage of the capacitor. | 07-08-2010 |
20100237955 | PROCESS, VOLTAGE, TEMPERATURE COMPENSATED OSCILLATOR - 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 charging capacitors. The toggling of the flip-flop is controlled by comparing the capacitor voltages to the reference voltage, such that the toggle frequency is proportional to the time charging the capacitors. Optionally, temperature compensation data, representing a magnitude and direction rotation of the frequency versus temperature characteristic is stored and, based on a sensed temperature, retrieved to modify the reference current. | 09-23-2010 |
20100244969 | TEMPERATURE COMPENSATED OSCILLATION CIRCUITS - A temperature compensated oscillation circuit capable of providing a stable frequency output over temperature is provided, in which an oscillator with a crystal resonator is arranged to generate an oscillation signal with an output frequency, and a temperature sensor provides a temperature compensation voltage of which a function is linear with respect to an ambient temperature of the oscillator. A first accumulation mode MOS varactor is coupled to the oscillator, and the first accumulation mode MOS varactor adjusts a capacitance thereof in response to the temperature compensation voltage, such that the coupled oscillator has a frequency compensation over temperature for the oscillation signal, wherein the frequency compensation substantially varies as an inverse function of a deviation of the crystal resonator over temperature when the ambient temperature is within a predetermined temperature range. | 09-30-2010 |
20110156823 | Piezoelectric oscillator - There is provided a temperature compensated piezoelectric oscillator which excels in frequency stability and has a good electronic noise characteristic, and with which a circuit can be structured simply. An auxiliary oscillator unit | 06-30-2011 |
20120229221 | OSCILLATOR CIRCUIT WHICH COMPENSATES FOR EXTERNAL VOLTAGE SUPPLY, TEMPERATURE AND PROCESS - Disclosed is an oscillator circuit which compensates for external voltage supply, temperature, and a process, includes: a reference voltage generation unit configured to generate reference voltage Vbp stabilized against a change in external voltage supply VDD and temperature; a temperature compensation unit configured to generate first reference voltage PVREF, second reference voltage IVREF, and third reference voltage RX_VREF; an internal voltage supply generation unit configured to generate internal voltage supply VPPI stabilized against the change in external voltage supply VDD and temperature by receiving the first reference voltage PVREF; a current supply unit configured to generate compensation current RX_IREF in proportion to or in inverse proportion to temperature by receiving the second reference voltage IVREF; a process compensation unit configured to perform process compensation by controlling an amount of the compensation current RX_IREF; and an oscillation signal generation unit configured to generate oscillation signals. | 09-13-2012 |
20120249251 | GENERATION OF BEZIER CURVE AS CONTROL SIGNAL FOR OSCILLATING CIRCUIT - A function generating circuit for producing a control signal for an oscillating circuit that vibrates a crystal unit includes a temperature detecting circuit to detect an ambient temperature, and a Bezier-curve generating circuit to produce a Bezier curve as the control signal in response to the ambient temperature detected by the temperature detecting circuit. | 10-04-2012 |
20130027141 | CRYSTAL RESONATOR AND CRYSTAL OSCILLATOR - A crystal resonator comprises a first vibrating region provided on a crystal wafer, a second vibrating region provided on the crystal wafer, the second vibrating region having a different thickness and positive/negative orientation of the X-axis from those of the first vibrating region, and excitation electrodes which are provided respectively on the first vibrating region and the second vibrating region for causing the vibrating regions to vibrate independently. Frequencies that change by different amounts from each other relative to a temperature change can be retrieved from one vibrating region and the other vibrating region. Thus, based on an oscillating frequency of the vibrating region in which a clear frequency change occurs relative to the temperature, the oscillating frequency of the other vibrating region can be controlled. Thereby, increases in the complexity of the crystal oscillator can be suppressed. | 01-31-2013 |
20130127551 | CRYSTAL REFERENCE OSCILLATOR FOR NAVIGATION APPLICATIONS - 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 operative to set the operating frequency in dependence upon prevailing ambient conditions. The control circuit has a control input for initiating a set-up procedure during which the operating frequency of the oscillator is set to a value remote from any resonance frequency of a coupled mode that would cause an activity dip. | 05-23-2013 |
20130141174 | OSCILLATOR FOR GENERATING A SIGNAL COMPRISING A TERAHERTZ-ORDER FREQUENCY USING THE BEAT OF TWO OPTICAL WAVES - The invention concerns an oscillator generating a wave composed of a frequency of on the order of terahertz from a beat of two optical waves generated by a dual-frequency optical source ( | 06-06-2013 |
20130162358 | REFERENCE CURRENT GENERATOR CIRCUIT - One aspect of the present invention includes a reference current generator circuit. The circuit includes a bias circuit configured to generate a reference current along a first current path and a second current along a second current path. The reference current and the second current can be proportional. The circuit also includes a first pair of transistors connected in series and configured to conduct the reference current in the first current path. The circuit further includes a second pair of transistors connected in series and configured to conduct the second current in the second current path. The second pair of transistors can be coupled to the first pair of transistors to provide a collective resistance value of the second pair of transistors that is proportional to temperature. | 06-27-2013 |
20140077888 | SEMICONDUCTOR DEVICE AND METERING APPARATUS - A semiconductor device. The semiconductor device includes: an oscillator; a semiconductor chip that includes an oscillation circuit connected to the oscillator, a timer circuit that generates a timing signal of a frequency according to a oscillation frequency of the oscillation circuit, and a frequency correction section that corrects a frequency of the timing signal based on temperature data; and a discrete device that includes at least one of a temperature sensing device that detects a peripheral temperature, that supplies the detected temperature as temperature data to the frequency correction section, and that is provided as a separate body to the semiconductor chip, or a capacitor that is electrically connected to both the oscillator and the oscillation circuit and that is provided as a separate body to the semiconductor chip, wherein the oscillator, the semiconductor chip and the discrete device are contained within a single package. | 03-20-2014 |
20140125420 | PIEZOELECTRIC DEVICE AND ELECTRONIC APPARATUS - A piezoelectric device includes an insulating substrate, a piezoelectric vibration device that is mounted on a device mounting pad, a metal lid member that seals the piezoelectric vibration device in an airtight manner, an external pad that is arranged outside the insulating substrate, an oscillation circuit, a temperature compensation circuit, and a temperature sensor. The lid member and the temperature sensor or the lid member and the IC component are connected to each other so as to be heat-transferable, and a heat transfer member having thermal conductivity higher than that of the material of the insulating substrate is additionally included. | 05-08-2014 |
20140203879 | TEMPERATURE CONTROLLED OSCILLATOR AND TEMPERATURE SENSOR INCLUDING THE SAME - A temperature controlled oscillator includes an oscillation unit and a filter unit. The oscillation unit is configured to generate at least one reference voltage based on a supply voltage and a ground voltage, and to generate an oscillation signal having a period varying according to a temperature, the oscillation unit configured to generate the oscillation signal based on a filter voltage and the at least one reference voltage. The filter unit is configured to generate the filter voltage based on the oscillation signal. | 07-24-2014 |
20140210563 | CRYSTAL CONTROLLED OSCILLATOR AND OSCILLATING DEVICE - A crystal controlled oscillator of the present disclosure includes: an oscillator circuit for oscillator output, a first oscillator circuit, a second oscillator circuit, a heating unit, a pulse generator, a frequency difference detector, an addition unit, a circuit unit, a frequency measuring unit, a determination unit, and a signal selector. The signal selector is configured to: select a control signal where electric power supplied to the heating unit is smaller than supplied electric power in the detection range in a case where a frequency in a set period at the train of pulses is out of the detection range at the high temperature side; select a control signal where electric power supplied to the heating unit becomes a preset value in a case where a frequency in the set period at the train of pulses is out of the detection range at the low temperature side. | 07-31-2014 |
20150077190 | PACKAGE STRUCTURE OF CRYSTAL OSCILLATOR WITH EMBEDDED THERMISTOR - A package structure of crystal oscillator with embedded thermistor is disclosed. The package structure comprises a ceramic substrate. A crystal oscillation device is mounted in the accommodation space of the ceramic substrate. A cover is used to seal the accommodation space. At least one thermistor is embedded in the ceramic substrate. A patterned metal interconnection in the ceramic substrate is electrically connected with the crystal oscillation device and the thermistor, respectively. The present invention describes as follows: the thermistor is directly embedded in the ceramic substrate to avoid the short-circuit problem caused by electroplating a thermistor exposed and shorten a distance between the thermistor and the crystal oscillation device. Thus, the thermistor can more precisely sense the operating temperature of the crystal oscillation device to timely compensate frequency drift caused by changing the temperature of the crystal oscillation device. | 03-19-2015 |
20150097630 | Method and Device for Managing the Time Transition of a CMOS Logic Circuit as a Function of Temperature - A method includes generation of a first current proportional to absolute temperature and formation of a second current representative of the temperature variation of the threshold voltages of the transistors of the inverter and limited to a fraction of the first current. This fraction is less than one. The inverter is supplied with a supply current equal to the first current minus the limited second current. | 04-09-2015 |
20150130546 | TEMPERATURE CONTROL DEVICE AND OSCILLATOR - A temperature control device includes a temperature detector, a difference operation unit, a controller, a saturation processing circuit unit, a rewritable storage unit, and a conversion unit. The difference operation unit operates a digital value corresponding to a difference value between a detected temperature value and a target temperature. The controller calculates a manipulated variable using the digital value operated by the difference operation unit. The saturation processing circuit unit includes a digital circuit to limit an output value of the controller to a pre-set upper limit value. The rewritable storage unit stores the upper limit value read from a storage area of the rewritable storage unit and input into the saturation processing circuit unit. The conversion unit converts the output value of the saturation processing circuit unit into an analog signal to output the converted value as a control command value to the heater. | 05-14-2015 |
20150145609 | CLOCK SIGNAL GENERATION CIRCUIT, DETECTION DEVICE, SENSOR, ELECTRONIC APPARATUS, AND MOVING OBJECT - A clock signal generation circuit includes a CR oscillator circuit having a capacitor, a resistor, and an amplifier circuit, and a voltage generation circuit adapted to generate a power supply voltage, and then supply the CR oscillator circuit | 05-28-2015 |
20150303928 | METHOD FOR COMPENSATING LOCAL OSCILLATOR FREQUENCY - An oscillator circuit includes a voltage-controlled oscillator configured to output an AC output signal having a predetermined frequency, which changes due to temperature and fabrication process variations and a control voltage generating circuit configured to provide a voltage signal to the voltage-controlled oscillator to maintain the predetermined frequency by compensating for the temperature and fabrication process variations. | 10-22-2015 |
20150326179 | OSCILLATION CIRCUIT, CURRENT GENERATION CIRCUIT, AND OSCILLATION METHOD - The present invention provides an oscillation circuit including: a first current source having dependency of current value/temperature exhibiting a first characteristic; a second current source having dependency of current value/temperature exhibiting a second characteristic; a first conversion section, input with a current from the first current source, that outputs a first current having a specific characteristic which is converted from the first characteristic; a second conversion section, input with a current from the second current source, that outputs a second current having a specific characteristic which is converted from the second characteristic; a subtraction section, input with the first and the second current, that outputs a difference current that is a difference between the first and the second current; and a clock generation section that generates a clock signal by alternately charging and discharging a first and a second capacitor based on the difference current. | 11-12-2015 |
20150341039 | CIRCUIT SYSTEM ADAPTIVELY ADJUSTING SUPPLY VOLTAGE ACCORDING TO TEMPERATURE AND OPERATING METHOD THEREOF - A circuit system includes a current supply module, a voltage supply module and a voltage-controlled oscillator (VCO). The current supply module provides a current adapted to an ambient temperature. The voltage supply module receives the current and generates an adapted voltage according to the current. The VCO receives the adapted voltage and generates an oscillation signal according to the adapted voltage. | 11-26-2015 |
20160028405 | CLOCK GENERATOR USING FREE-RUNNING OSCILLATOR AND METHOD THEREFOR - A clock generator comprises a free-running oscillator and a tunable frequency synthesizer. The free-running oscillator has an output for providing an oscillator clock signal. The tunable frequency synthesizer is coupled to the free-running oscillator and provides a clock output signal in response to the oscillator clock signal and a frequency control signal. The frequency control signal corresponds to a measured characteristic of the free-running oscillator. | 01-28-2016 |
20160043695 | SYSTEM AND METHOD FOR FREQUENCY DRIFT COMPENSATION FOR A DIELECTRIC RESONATOR OSCILLATOR - Systems and methods for frequency drift compensation for a dielectric resonator oscillator and systems and methods to reduce temperature drift in a dielectric resonator oscillator are provided. Some systems can include an oscillator circuit and a dielectric resonator electrically coupled to the oscillator circuit. The oscillator circuit can have a first temperature coefficient, and the dielectric resonator can have a second temperature coefficient to compensate for frequency drift caused by the first temperature coefficient of the oscillator circuit. | 02-11-2016 |
20160049905 | OSCILLATOR CIRCUIT AND METHOD OF PROVIDING TEMPERATURE COMPENSATION THEREFOR - An oscillator circuit comprising at least a first component arranged to be statically calibrated to calibrate the oscillator circuit to achieve a symmetrical frequency/temperature profile for the oscillator circuit. The oscillator circuit further comprises at least one further component arranged to be dynamically calibrated to enable an oscillating frequency of the oscillator circuit to be dynamically adjusted, and at least one temperature compensation component arranged to receive at least one temperature indication for the oscillator circuit and to dynamically adjust the at least one further component based at least partly on the at least one received temperature indication. In some examples, the at least one temperature compensation component is arranged to dynamically adjust the at least one further component based on a standardized temperature compensation scheme. | 02-18-2016 |
20160049945 | COMPENSATING FOR HYSTERETIC CHARACTERISTICS OF CRYSTAL OSCILLATORS - In some examples, compensating for hysteretic characteristics of a crystal oscillator in a timing circuit includes obtaining a plurality of successive temperature measurements. From the plurality of successive temperature measurements, a temperature gradient having a sign and a magnitude can be determined. A frequency compensation parameter can then be determined based on any combination of two or more factors chosen from a set of factors including a temperature measurement, the sign of the temperature gradient, and the magnitude of the temperature gradient. A frequency error of the timing circuit can then be compensated based on the frequency compensation parameter. | 02-18-2016 |
20160079918 | SYSTEM AND METHOD USING TEMPERATURE TRACKING FOR A CONTROLLED OSCILLATOR - A system using temperature tracking for a controlled oscillator (CO) is provided. The system includes at least one coarse tuning capacitor circuit including a plurality of selectable coarse tuning capacitors operable in at least three modes of operation, thereby allowing switching between each coarse capacitor of the plurality of selectable coarse capacitors when a selected coarse tuning capacitor has reached one of its high tuning range and low tuning range. | 03-17-2016 |
20160079986 | TEMPERATURE COMPENSATED CRYSTAL OSCILLATOR - The temperature compensated crystal oscillator has a rectangular substrate, a frame which is provided on an upper surface of the substrate, a mounting frame which has joining pads which are provided along an outer circumferential edge of the upper surface and which is provided on a lower surface of the substrate by bonding of joining terminals which are provided along the outer circumferential edge of the lower surface of the substrate and the joining pads, a crystal element which is mounted on an electrode pad which is provided on the upper surface of the substrate in a region surrounded by the frame, an integrated circuit element which has a temperature sensor and which is mounted on a connection pad which is provided on the lower surface of the substrate in a region surrounded by the mounting frame, and a lid which is joined to the upper surface of the frame. | 03-17-2016 |
20160087581 | ELECTRONIC DEVICE, ELECTRONIC APPARATUS, AND MOVING OBJECT - An electronic device includes a resonator provided with a heating element, and a circuit component opposed to the heating element, and provided with at least an oscillating amplifier element, and a distance between the heating element and the circuit component is in a range not smaller than 0 mm and no larger than 1.5 mm. | 03-24-2016 |
20160087637 | DEVICE AND METHOD FOR ADJUSTING AN OSCILLATION FREQUENCY OF A VCTCXO OSCILLATOR | 03-24-2016 |
20160112050 | THERMAL OSCILLATOR - A thermal oscillator ( | 04-21-2016 |
20160112051 | OSCILLATOR, ELECTRONIC DEVICE AND MOVING OBJECT - An oscillator includes an oscillation element; an oscillation circuit which causes the oscillation element to oscillate; a heat generation element which heats the oscillation element; a temperature control circuit which controls the heat generation element; and a temperature correction circuit which corrects frequency-temperature characteristics of an output signal of the oscillation circuit. | 04-21-2016 |
20160126959 | OSCILLATOR, A CLOCK GENERATOR AND A METHOD FOR GENERATING A CLOCK SIGNAL - An oscillator configured to generate an oscillation signal is provided. The oscillator includes a transistor pair and a cross-coupled transistor pair. The transistor pair is coupled to a first current source and has a first transconductance. The first transconductance is changed in response to a current value of the first current source. The cross-coupled transistor pair is coupled to a second current source and has a second transconductance. The second transconductance is changed in response to a current value of second current source. The transistor pair and the cross-coupled transistor pair are mutually coupled by a plurality of inductors. A frequency of the oscillation signal is determined according to the first transconductance and the second transconductance. Furthermore, a clock generator and a method for generating a clock signal thereof are also provided. | 05-05-2016 |