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US20090315631 |
Methods and Apparatus Utilizing Quantum Inductance of Nanoscale Structures
Methods and apparatus utilizing the quantum inductance of one-dimensional (ID) nanoscale structures (e.g., nanowires, carbon nanotubes). In one exemplary circuit implementation, all elements of a...
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US20090289732 |
SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE AND FREQUENCY SYNTHESIZER
A semiconductor integrated circuit includes: a resonance circuit configured to determine an oscillation frequency; a first MOS transistor connected to the resonance circuit and configured to...
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US20090289731 |
RESONATOR CIRCUIT AND VOLTAGE-CONTROLLED OSCILLATOR USING THE SAME
A resonator circuit applied to a voltage-controlled oscillator comprises a switch and a wiring inductance. The switch is connected to a first node and a third node. The wiring inductance has...
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US20090256643 |
VOLTAGE CONTROLLED OSCILLATOR, AND PLL CIRCUIT AND RADIO COMMUNICATION DEVICE EACH INCLUDING THE SAME
A voltage controlled oscillator of the present invention includes an inductor circuit 110, C-coupling type variable capacitance circuits 120 and 140, a direct-coupling type variable...
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US20090251228 |
VOLTAGE-CONTROLLED VARIABLE FREQUENCY OSCILLATION CIRCUIT AND SIGNAL PROCESSING CIRCUIT
A voltage-controlled variable frequency oscillation circuit, includes: an oscillation circuit section including a resonance circuit which includes a coil and a variable capacitance element, and a...
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US20090243110 |
Voltage controlled oscillator
A semiconductor device includes a semiconductor substrate having an element region on a surface thereof, an active element being formed in the element region. An insulating layer is formed on the...
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US20090184774 |
TRANSISTOR VOLTAGE-CONTROLLED OSCILLATOR
A transistor voltage-controlled oscillator includes a cross-coupled LC-tank transistor voltage-controlled oscillating circuit composed of two transistors, a capacitor set, and a first transformer...
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US20090128245 |
Oscillator Circuit
The present invention relates to an oscillator circuit having a resonant element, an active element, a feedback loop, and an additional loop comprising a phase shifting element.
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US20090108947 |
Voltage Controlled Oscillator
A voltage controlled oscillator includes an LC-tank circuit, a cross-coupled pair circuit, and a trans-conductance adjusting circuit. The LC-tank circuit provides an inductance and a capacitance....
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US20090085682 |
Injection-locked frequency divider with a wide injection-locked frequency range
An injection-locked frequency divider includes a signal injection circuit and colpitts VCO. The signal injection circuit is for injecting an injection signal. The colpitts VCO includes first and...
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US20090072919 |
VOLTAGE-CONTROLLED OSCILLATOR WITH WIDE OSCILLATION FREQUENCY RANGE AND LINEAR CHARACTERISTICS
Provided is a voltage-controlled oscillator with a wide oscillation frequency range and linear characteristics, which can linearly change an oscillation frequency versus control voltage due to a...
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US20090066431 |
WIDE-BAND VOLTAGE CONTROLLED OSCILLATOR
A wide-band voltage controlled oscillator includes a cross-connected transistors for providing a stable oscillating signal, an inductor unit for providing an inductance for determining a resonance...
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US20090021317 |
CMOS cross-coupled differential voltage controlled oscillator
A CMOS cross-coupled differential voltage controlled oscillator is provided with a pair of oscillator outputs. The oscillator includes a current control unit, a first cross-coupled differential...
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US20090015343 |
Voltage Controlled Oscillator (VCO) With Simultaneous Switching Of Frequency Band, Oscillation Core And Varactor Size
The invention relates to a voltage controlled oscillator for generating a variable frequency. The oscillator comprises an oscillator core and a transconductive portion for compensating current...
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US20090009292 |
RFID INTERROGATOR
Embodiments of the invention relate to the field of RFID interrogators, particularly RFID interrogators that combine low loss with high rates of communication from the interrogator to a tag. We...
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US20080309423 |
VOLTAGE CONTROL OSCILLATOR AND OSCILLATION CONTROL SYSTEM
A voltage control oscillator has a first MOS transistor having one end connected to a first potential; a second MOS transistor having one end connected to the first potential, a gate connected to...
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US20080284534 |
OSCILLATOR
An oscillator is provided that includes a plurality of excitation units for providing an excitation signal and a tank as an oscillation generating unit for generating an oscillation signal in...
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US20080266007 |
OSCILLATING APPARATUS HAVING CURRENT COMPENSATING DEVICE FOR PROVIDING COMPENSATING CURRENT TO COMPENSATE FOR CURRENT REDUCTION OF TRANSCONDUCTIVE DEVICE AND METHOD THEREOF
According to an embodiment of the present invention, an oscillating apparatus is provided. The oscillating apparatus generates an oscillating signal, and the oscillating apparatus includes a...
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US20080164954 |
VOLTAGE CONTROLLED OSCILLATOR FOR CONTROLLING PHASE NOISE AND METHOD USING THE SAME
A voltage controlled oscillator (VCO) includes a VCO unit having multiple VCO unit output terminals and an amplifier having multiple amplifier output terminals respectively connected to the VCO...
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US20080143446 |
Low Phase-Noise Oscillator
A tail-tank coupling technique combines two complementary differential LC-VCOs to form a quadrature LC-VCO. The technique reduces phase noise by providing additional energy storage for noise...
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US20080129398 |
HIGH RESOLUTION DIGITALLY CONTROLLED OSCILLATOR
This disclosure describes designs for a digitally controlled oscillator (DCO). The DCO can overcome many of the shortcomings associated with conventional voltage controlled oscillators (VCOs), and...
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US20080129399 |
Low power consumption frequency divider circuit
The present invention discloses a low power consumption frequency divider circuit. It mainly comprises a signal source; a signal injection circuit; and an oscillator circuit. The low-power...
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US20080111642 |
APPARATUS AND METHODS FOR VCO LINEARIZATION
A method of linearizing a frequency versus tuning voltage response of a voltage controlled oscillator comprising multiple varactor sets. In one example, a the method of linearizing includes acts of...
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US20080100392 |
Low-Latency Start-Up for a Monolithic Clock Generator and Timing/Frequency Reference
An apparatus, system and method are provided for low-latency start-up of a free-running harmonic oscillator. The exemplary apparatus embodiment comprises a first and second current sources to...
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US20080079507 |
Oscillator Circuit
Implementations are presented herein that relate to an oscillator circuit.
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