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8907734 Passive and active suppression of vibration induced phase noise in oscillators  
An oscillator system having: an UHF oscillator, such as a SAW oscillator, for producing a signal having a controllable frequency; a passive vibration, suppressor mechanically coupled to the UHF...
8571816 Electromagnetic flow meter  
Gain switching is performed by a DC amplifying circuit. The DC amplifying circuit is provided with individual gain generating circuits and a gain selecting circuit, and saturation preventing...
8461934 External oscillator detector  
An IC includes first and second pads. The first pad is configured to receive an external clock. Alternatively, the first and second pads are configured to be coupled to a crystal oscillator and...
8427249 Resonator with reduced acceleration sensitivity and phase noise using time domain switch  
A resonator comprising: a frame; a first oscillator configured to oscillate with respect to the frame; a first driver configured to drive the first oscillator at the first oscillator's resonant...
8351867 Oscillator, frequency generating circuit and wireless communication system using the oscillator  
The present invention provides an oscillator and a communication system using the oscillator, in particular, an LC oscillator adapted to lessen phase noise deterioration due to harmonic...
8081036 Electronic device used for measuring and detecting the variations of at least one input signal  
The device has a component providing an outlet signal whose oscillation frequency depends on a physical unit to be measured, and a reference oscillator. A phase comparison component compares the...
8026771 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...
8022777 Ovenized crystal oscillator assembly  
An oscillator assembly including an oscillator seated on a pad of thermally conductive material formed on the surface of a printed circuit board and covered by a lid defining an oven for the...
7942833 Motion guide device, and its control system and control program  
A device for inducing a user's motion in a rhythm responsive to a motion rhythm after the user's motion rhythm changes suddenly. The walking assist device generates a first oscillator which...
7924105 Method for the detection of a predamping state and inductive sensor with predamping detection  
The present invention relates to a method for the detection of a predamping state of an inductive sensor. The sensor has at least one oscillator with a resonant circuit and an oscillation...
7924103 Inductive proximity switch and method for its operation  
The present invention relates to an inductive proximity switch with an oscillator having a resonant circuit and an amplifier and with an evaluating and control device for evaluating an impedance...
7924104 Methods and apparatus for compensating a clock bias in a GNSS receiver  
A method for compensating a clock bias in a Global Navigation Satellite System (GNSS) receiver includes deriving at least one clock drift value comprising a first clock drift value corresponding...
7915965 Oscillator having reduced sensitivity to acceleration  
This invention relates to an oscillator having reduced sensitivity to acceleration. The oscillator includes a plurality of asymmetrically mounted resonator portions each having an active resonance...
7899633 Sensing apparatus  
An object of the present invention is to provide a sensing instrument capable to detect a substance existing in a very small quantity, such as environmental pollutants, instantly with a high...
7893776 Monitoring and compensating for real time local circuit speed in an integrated circuit  
A speed monitor circuit integrated in an integrated circuit (IC) determines the speed of the IC. The speed monitor circuit includes an oscillator that generates an oscillator signal. A speed...
7880552 Control system for walking assist device  
A system capable of controlling an autonomous walking assist rhythm, while following changes in a walking rhythm of a walker at the same time. A control system 100 in accordance with the present...
7849744 Driving device, physical quantity measurement device, and electronic instrument  
An oscillation driver circuit includes a gain control amplifier which causes a vibrator to produce driving vibrations by controlling an oscillation amplitude in an oscillation loop, and a...
7843277 Haptic feedback generation based on resonant frequency  
A system that generates a haptic effect generates a drive cycle signal that includes a drive period and a monitoring period. The drive period includes a plurality of drive pulses that are based on...
7737796 Constant temperature type crystal oscillator  
A lead wire led-out type crystal oscillator of constant temperature type for high stability is disclosed, which includes a heat supply body that supplies heat to a crystal resonator from which a...
7714670 Monitoring and compensating for real time local circuit speed in an integrated circuit  
An integrated circuit comprises an oscillator that generates an oscillator signal. A first counter generates a first count based on transitions of the oscillator signal. A first circuit generates...
7692506 Oscillation driver device, physical quantity measuring device, and electronic instrument  
An oscillation driver device includes a gain control amplifier, an automatic gain control circuit, and a mode setting circuit. When the mode setting circuit has switched a mode from a normal...
7683727 Acceleration feedback control for crystal oscillators  
Methods and apparatus for controlling frequency in a crystal oscillator are provided that allows for continued reception of GPS signal solution in a continuous high G environment. One method...
7667547 Loosely-coupled oscillator  
Certain embodiments of the present invention provide a loosely-coupled oscillator including a circuit and an electronic device that are not physically connected. The electronic device may include...
7649426 Apparatus and method for temperature compensation of crystal oscillators  
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...
7649422 Real time clock integrated circuit and electronic apparatus using the same  
A real time clock integrated circuit (RTC IC) and an electronic apparatus thereof are provided. In the RTC IC, only a low-power oscillator is used for generating a standard clock for a real time...
7626466 Proximity switch and method for operating a proximity switch  
The invention relates to a proximity switch, particularly an inductive proximity switch, with an oscillator having an at least partly self-compensated feedback network influenceable by a target to...
7583154 Voltage controlled oscillator  
A voltage-controlled oscillator is provided that avoids use of any crystal resonator, or any resonator that is external to and not integrated upon the voltage-controlled oscillator monolithic...
7528597 Induction sensor  
Position sensor circuits are disclosed for use with variable reluctance sensors. Variable reluctance sensors are described for linear, angular and rotary position measurement and for acceleration...
7511585 Automatic page detector  
The present invention discloses an automatic page detector, to determine which page of a book is open. The automatic page detector uses a sensor plate and an inductor as a sensor. In the...
7511476 Electromagnetic sensor systems and methods of use thereof  
Sensor circuits including an oscillator circuit are disclosed. In one instance, the sensing element is a variable reactance element (a variable inductor or/and capacitor).
7429858 Oscillating-beam magnetometer  
In one embodiment, an integrated magnetometer has a deformable, electrically conducting beam that is mounted on a substrate and adapted to oscillate with respect to the substrate. When the...
7418614 External signal detection circuit and real-time clock  
An external signal detection circuit includes an input port, to which a first end of a circuit including a pull-up resistor connected in series with a first switch portion is connected, the input...
7398163 Sensing apparatus  
An object of the present invention is to provide a sensing instrument capable to detect a substance existing in a very small quantity, such as environmental pollutants, instantly with a high...
7348857 Monitoring and compensating for real time local circuit speed in an integrated circuit  
A circuit and related method of monitoring performance of an integrated circuit is provided comprising: using a variable oscillator that has an oscillation time period that varies within an...
7332975 Reference-less clock circuit  
A programmable reference-less oscillator provides a wide range of programmable output frequencies. The programmable reference-less oscillator is implemented on an integrated circuit that includes...
7327197 Radiation hardened phase locked loop  
A method and apparatus for providing a radiation hardened Phase Locked Loop (PLL) are presented. The radiation hardened PLL includes an adjustable bandwidth loop filter. The adjustable filter...
7271670 CR oscillation circuit  
A CR oscillation circuit comprises first and second logic elements, a capacitive element, and a resistive element. The first logic element is connected between a first node and a second node. The...
7242260 Real time clock apparatus  
A given length of an input signal can be detected with small power consumption. A real time clock apparatus has an oscillating module which outputs an original oscillating clock signal having a...
7209013 Systems and methods for self-calibration  
A self-calibrating integrated circuit includes a processor having at least one analog function used with the processor; one or more sensors adapted to sense one or more environmental parameters of...
7119551 Capacitive sensor  
An improved two loop capacitive sensor oscillator circuit converts a transducer capacitance to a frequency and includes a first loop to create an oscillatory waveform having a frequency related to...
7106143 Method for achieving highly reproducible acceleration insensitive quartz crystal oscillators  
An oscillator and a method for producing an improved oscillator that will generate an accurate frequency when encountering a vibration. The oscillator and method uses a crystal with minimal...
7098748 Integrated CMOS high precision piezo-electrically driven clock  
A clock oscillator embedded in an integrated circuit, including a piezoelectric resonator formed on the integrated circuit; a clock generator coupled to the on-chip piezoelectric resonator, one or...
7053319 Electronic weighing apparatus utilizing surface acoustic waves using sensors operating at different frequencies, having temperature compensation, and a push oscillator  
A weighing apparatus includes a SAW oscillator and a “push oscillator” to force the SAW oscillator into a desired mode of operation. A SAW temperature oscillator and a thermistor are also...
7049935 Sizing of an electromagnetic transponder system for a dedicated distant coupling operation  
A system of contactless electromagnetic transmission between a terminal including a series oscillating circuit for generating an electromagnetic field and a transponder including a parallel...
7042213 Magnetometer having an electromechanical resonator  
In one embodiment, a magnetometer includes an electromechanical resonator coupled to a drive-and-detect (DD) circuit. The resonator has a deformable beam that is a part of a closed current path....
6948388 Wireless remote sensor  
A sensing system includes a ring oscillator that emits electromagnetic radiation at a characteristic frequency. The ring oscillator comprises an odd number plurality of inverters that are...
6922111 Adaptive frequency clock signal  
According to some embodiments, a clock signal having an adaptive frequency is provided.
6911873 Detection circuit and method for an oscillator  
A method and circuit are disclosed for detecting the performance of an oscillator circuit. In particular, the circuit may detect a signal, such as the output of the oscillator circuit, failing to...
6912426 Method for determining time constants of a reference model in a cascade controlling circuit  
A method for determining at least one time constant of a reference model, which is designed as a 2nd order time-delay element of a machine. The method includes detecting an oscillation frequency...
6873215 Power down system and method for integrated circuits  
A power down system and method for an integrated circuit that enables a power down mode to be maintained for a predetermined time is described herein. The power down system comprises an...