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9024699 Numerically-controlled oscillator  
Various techniques for generating an output clock based on a reference clock. This disclosure relates to generating an output clock signal based on a reference clock signal. In one embodiment, a...
8952760 Gated voltage-controlled oscillator and clock and data recovery circuit  
A gated voltage-controlled oscillator receives a gating signal and outputs an oscillating signal having a frequency corresponding to the gating signal. The gated voltage-controlled oscillator...
8917146 Current-controlled operational transconductance amplifier based sinusoidal oscillator circuit  
A current controlled operational transconductance amplifier based sinusoidal oscillator circuit that provides oscillation based on the transconductance and parasitic capacitance of the operational...
8884711 MEMS device oscillator loop with amplitude control  
A MEMS device and method for amplitude regulation of a MEMS device are disclosed. In a first aspect, the MEMS device comprises a MEMS resonator, a limiter coupled to the MEMS resonator, and a...
8866556 Phase shift phase locked loop  
A phase shift phase locked loop (PSPLL) are described. The phase shift PLL includes a PLL and a phase adjusting circuit coupled to the inputs of the PLL. The phase adjusting circuit has a first...
8862080 Phase shifter and method for controlling same, and radio communication device with array antenna  
A phase shifter includes controlling a phase of an output signal of an orthogonal modulator; and interchanging two kinds of signals inputted to the orthogonal modulator, interchanging each...
8854148 Programmable sinusoidal oscillator circuit  
A programmable sinusoidal oscillator circuit is a sinusoidal oscillator circuit that includes a current-feedback operational-amplifier (CFOA) operably connected to two operational transconductance...
8823463 Oscillator circuit and method for generating an oscillation  
The invention relates to an oscillator circuit, comprising a clipping element for generating a clipped signal, and a first amplification stage for amplifying and filtering the clipped signal to...
8797105 Tunable signal source  
The present disclosure provides a tunable signal source having a plurality of oscillator cores having a coupling input, a coupling output, and a power output that is common to each of the...
8773212 Resistance-capacitance oscillation circuit  
A resistance-capacitance oscillation circuit comprises an amplifier and a phase shifting circuit. The phase shifting circuit comprises at least three resistance-capacitance circuit elements, which...
8773213 Resistance-capacitance oscillation circuit  
A resistance-capacitance oscillation circuit comprises an amplifier and a phase shifting circuit. The phase shifting circuit comprises at least three resistance-capacitance circuit elements, each...
8729972 Phase-shift keying demodulators and smart cards including the same  
A phase-shift keying (PSK) demodulator and a smart card including the same are disclosed. The PSK demodulator includes a delay circuit and a sampling circuit. The delay circuit generates a...
8665033 Varactorless tunable oscillator  
A tunable oscillator circuit is disclosed. The tunable oscillator circuit includes an inductor/capacitor (LC) tank circuit comprising a primary inductor coupled in parallel with a first capacitor...
8659363 OTA-based current-mode filter and oscillator  
Techniques are generally described herein related to filters including first operational transconductance amplifier (first OTA) and a second operational transconductance amplifier (second OTA). In...
8624685 System and method for reducing lock time in a phase-locked loop  
Increasing loop gain is a common practice for reducing lock time of phase locked loops. Very high loop gains, however, often result in increasing the lock time or causing loop instability. For...
8614606 Delay-line self-oscillator  
An electrical, magnetic or electromagnetic delay line self oscillator is described with a delay line arrangement, an oscillator control circuitry, and a frequency selection impedance connecting...
8604887 Current-feedback operational amplifier-based sinusoidal oscillator  
The current-feedback operational amplifier-based sinusoidal oscillator provides oscillations based on a single external resistor and a single external capacitor, which exploit the internal...
8531249 Oscillator for generating output signal with adjustable frequency  
An oscillator is provided and includes a resistance unit, a capacitance unit, a first inverter and a second inverter. The resistance unit is serially connected between a first reference point and...
8456251 Phase-controlled oscillator  
An adjustable-frequency oscillator, is formed by two looped systems, functioning at the same frequency but the signals are phase shifted by 90°. Each looped system includes a phase shift device,...
8436687 Oscillating apparatus  
An oscillating apparatus includes: a transfer gate including a P-channel transistor and a N-channel transistor; a first inverter for inverting an output signal of the transfer gate and outputting...
8395456 Variable phase amplifier circuit and method of use  
A variable phase amplifier circuit is disclosed and its method of use in tuning devices having resonators. The variable phase amplifier receives an input differential signal pair. The input...
8264289 Nth-order arbitrary-phase-shift sinusoidal oscillator structure and analytical synthesis method of making the same  
Nth-order voltage- and current-mode arbitrary phase shift oscillator structures are synthesized using n operational trans-conductance amplifiers (OTAs) or second-generation current controlled...
8232846 Resistor capacitor (RC) oscillator  
In one embodiment, an RC oscillator is provided. The oscillator includes a current generator circuit configured to generate a current. A capacitor is configured to be charged by the current. An...
8219054 Oscillating circuit and radio communication apparatus  
According to an aspect of the invention, an oscillating circuit includes: a first MOS transistor having a first drain terminal and a first source terminal; a load element connected to the first...
8154309 Configurable PSRO structure for measuring frequency dependent capacitive loads  
A configurable PSRO measurement circuit is used to measure the frequency dependent capacitance of a target through silicon via (TSV) or other conductive structure. Measurements of the target...
8130049 Submillimeter-wave signal generation by linear superimposition of phase-shifted fundamental tone signals  
Generation of Terahertz range (300 GHz to 3 THz) frequencies is increasingly important for communication, imaging and spectroscopic systems, including concealed object detection. Apparatus and...
8076981 Self-calibrating oscillator  
An oscillator that increases the accuracy of an output frequency, without using a charge pump, has an oscillation circuit, first and second voltage supply circuits, and a calibration value...
8044734 Method and apparatus for mitigating VCO pulling  
Techniques for mitigating VCO pulling are described. In an aspect, VCO pulling may be mitigated by (i) injecting an oscillator signal, which is a version of a VCO signal from a VCO, into a...
7999627 Resonant circuit arrangement, method for operating said resonant circuit arrangement and method for the operation and use thereof  
A resonant circuit arrangement is for generating an amplitude-shift-keyed and/or phase-shift-keyed signal. The resonant circuit arrangement includes a capacitive storage element having a first...
8001410 Efficient clocking scheme for ultra high-speed systems  
There is provided a system for comparing the phase characteristics of three generated clock signals, each having a unique phase relationship with an original clock signal, with the original clock...
7969252 System and method for reducing lock time in a phase-locked loop  
Increasing loop gain is a common practice for reducing lock time of phase locked loops. Very high loop gains, however, often result in increasing the lock time or causing loop instability. For...
7965149 Resistor-capacitor oscillator  
An embodiment for low power-consumption RC oscillator is disclosed. A voltage transforming unit transforms a power supply voltage to an internal voltage. A current mirroring unit is coupled to the...
7944217 Object proximity detector and object position detector  
The present invention offers an object proximity detector and object position detector. The variation of frequency of an oscillator is used to detect the proximity of an object to a sensor plate....
7924108 Oscillator amplifier with input clock detection and method therefor  
An oscillator circuit has a crystal oscillator amplifier having only two clock input terminals, one being an input terminal and the other being an output terminal. The input terminal allows a user...
7902930 Colpitts quadrature voltage controlled oscillator  
Provided is a colpitts quadrature voltage controlled oscillator capable of obtaining quadrature orthogonal signals using a quadrature combination between a base and a collector of each transistor,...
7863992 Oscillator having comparator circuits having adjustable driving capabilities and method for operating the same  
An oscillator includes a first comparator circuit, a second comparator circuit, an oscillation signal generator circuit, and a frequency voltage generator circuit. The first comparator circuit...
7863990 Oscillation circuit, test apparatus and electronic device  
Provided is an oscillation circuit for generating an oscillation signal synchronized with a supplied reference clock, including: a voltage control oscillation section that, when triggered by each...
7847643 Circuit with multiphase oscillator  
In an embodiment, a circuit is provided comprising a multi-phase oscillator configured to output a plurality of output signals having the same frequency and different phase offsets. A feedback...
7825741 Frequency multipliers using multi-phase oscillation  
A method of generating an output signal from an input signal includes a step of generating a set of n signals, n being an integer greater than or equal to 3, by generating a signal for each...
7741920 Quadrature oscillator with simplified amplitude, phase and frequency control  
An oscillator circuit providing quadrature outputs and enabling instantaneous control over phase, frequency and amplitude of the output waveforms is disclosed. In one embodiment, the oscillator...
7705685 Low-voltage oscillator with capacitor-ratio selectable duty cycle  
An oscillator operates at a very low voltage yet has a duty cycle that is set by a ratio of capacitors that are charged and discharged. Sub-threshold p-channel transistors conduct sub-threshold...
7687703 Method and device for generating triangular waves  
This disclosure describes techniques for generating a set of data points that form a triangular wave having a desired gain and a desired frequency. In one example, the method includes the step of...
7659783 System and method for phase-locked loop (PLL) for high-speed memory interface (HSMI)  
A phase-locked loop (PLL) to provide clock generation for high-speed memory interface is presented as the innovate PLL (IPLL). The IPLL architecture is able to tolerate external long loop delay...
7629858 Time delay oscillator for integrated circuits  
One aspect relates to an oscillator, and various oscillator embodiments comprise an amplifier and line driver with an input and an output and a transmission line with a predetermined transmission...
7486151 Semiconductor circuit for use in timer circuit or oscillator circuit  
In a timer circuit of a semiconductor circuit including a current source driven by a power supply voltage, the current source outputs a current dependent on the power supply voltage, and outputs a...
7474162 RC-oscillator circuit  
An RC oscillator circuit is disclosed. The RC oscillator circuit includes a current generator configured to generate a charge current. The RC oscillator circuit also includes an integrator having...
7414482 Resonance mode selection using a resonator-synchronized second-order oscillator  
A resonator-synchronized oscillator for resonance mode selection is disclosed. In one embodiment, the resonator-synchronized oscillator comprises an oscillation loop, at least one capacitor...
7411466 Coil-less overtone crystal oscillator  
An overtone crystal oscillator including a crystal, multiple amplifiers and an RC network. The crystal has a fundamental resonance frequency and at least one overtone resonance frequency. The...
7397316 Ring oscillator for calibrating phase error and phase-error calibration method therefor  
A ring oscillator and a phase error calibration method are provided. The ring oscillator may include a first voltage-current converter for controlling and outputting an amount of tail current...
7391840 Phase locked loop circuit, electronic device including a phase locked loop circuit and method for generating a periodic signal  
A phase locked loop (PLL) circuit (1) comprising a loop input (11); a phase detector section (2) for detecting a phase difference between an input signal and a reference signal. The phase detector...

Matches 1 - 50 out of 308 1 2 3 4 5 6 7 >