Patents in Class 331/117R

Matches 1 - 50 out of 1291

Match	Document	Document Title
1	8169050	BEOL wiring structures that include an on-chip inductor and an on-chip capacitor, and design structures for a radiofrequency integrated circuit Back-end-of-line (BEOL) wiring structures that include an on-chip inductor and an on-chip capacitor, as well as design structures for a radiofrequency integrated circuit. The on-chip inductor and...
2	8169271	Interference resistant local oscillator With some embodiments, a VCO (voltage controlled oscillator) operates at an integer multiple (N) above a desired transmission frequency. In accordance with one embodiment, a chip is provided with a...
3	8169269	Hartley voltage controlled oscillator In a Hartley voltage controlled oscillator (VCO) circuit comprising two inductors (Ld, Lg), a transistor (Q1) and a varactor (C), the two inductors (Ld, Lg) are arranged as a coupled inductor pair...
4	8154356	Oscillator with capacitance array An oscillator is provided which comprises an array of capacitances. At least some capacitances in the array have different capacitance values.
5	8154350	PLL with continuous and bang-bang feedback controls An apparatus is provided. The apparatus comprising a voltage controlled oscillator (VCO), an amplifier, a switch, a calibration capacitor, and a control loop. The VCO includes a capacitive network...
6	8149069	Low-noise voltage-controlled oscillating circuit A low noise voltage-controlled oscillating circuit which can remove a power source noise to improve low frequency noise characteristics is disclosed. A capacitor C11 is provided between a base of a...
7	8138845	Method and apparatus for auto-frequency calibration for multi-band VCO A method and apparatus for auto-frequency calibration for multi-band VCO have been disclosed where a VCO is first adjusted to a major frequency band and then adjusted to a sub-band within the major...
8	8134418	Varactor circuit and voltage-controlled oscillation A varactor circuit and voltage-controlled oscillation are described. The varactor circuit includes a first varactor, a second varactor, a third varactor, and a fourth varactor. A first source-drain...
9	8134413	Low-power oscillator Techniques for synthesizing a signal having a desired frequency from an oscillation signal. In an aspect, a reference signal having a known frequency may be periodically used to determine a ratio...
10	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...
11	8130046	Frequency calibration of radio frequency oscillators A wireless communication device incorporating a set of comparators and logic interrupt into the local oscillator generation circuit block is described. In one design, the local oscillator circuit...
12	8120440	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...
13	8115558	Digital PLL circuit and semiconductor integrated circuit A digital PLL circuit includes: an oscillation circuit, wherein an oscillation frequency is controlled by changing the number of capacitance elements to be connected in parallel to an inductance...
14	8111110	Low-noise voltage controlled oscillator A low-noise voltage controlled oscillator is provided, to improve a phase noise characteristic and widen a frequency variable range. The low-noise voltage controlled oscillator is configured so...
15	8106718	GM-boosted differential drain-to-source feedback colpitts voltage controlled oscillator A voltage controlled oscillator outputting a differential signal includes: an inductor connected to a first power supply supplying first voltage; first and second transistors for differential...
16	8106714	Adjustable capacitor, digitally controlled oscillator, and all-digital phase locked loop An adjustable capacitor is provided including a capacitor unit including a plurality of capacitor groups aligned in a matrix format and a switch unit to adjust capacitance by connecting the...
17	8102218	Parallel-structured switched variable inductor circuit An inductor circuit includes a pair of inductors connected in parallel with each other and a switch for turning on and off electric power to one of the pair of inductors. The inductance of the...
18	8102216	Voltage controlled oscillator having reduced phase noise A VCO comprises an LC tank circuit coupled to a plurality of cross-coupled transistor devices. A first resonance frequency of a waveform output of the VCO is dependent upon the values of a first...
19	8098111	Reduced phase noise multi-band VCO Embodiments of a multi-band voltage controlled oscillator (VCO) are provided herein. The multi-band VCO is configured to adjust a frequency of an output signal based on an input signal. The...
20	8093958	Clock, frequency reference, and other reference signal generator with a controlled quality factor Exemplary embodiments of the invention provide a reference signal generator having a controlled quality (“Q”) factor. An exemplary apparatus to generate a harmonic reference signal includes a ref...
21	8085103	Resonant oscillator circuit with reduced startup transients Some embodiments of the present invention provide a system that implements a resonant oscillator circuit. This resonant oscillator circuit includes: a first inductor, a second inductor, a first...
22	8085087	Switched capacitor circuit capable of minimizing clock feedthrough effect and having low phase noise and method thereof A switched capacitor circuit includes a positive side capacitor coupled to a first positive side node; a first positive side switch element for selectively coupling the first positive side node to...
23	8085133	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...
24	8076985	PLL/FLL with voltage controlled oscillator Provided is a voltage-controlled oscillator that can hold an oscillation frequency at a desired value when an oscillation frequency changes due to the temperature, without narrowing a variable...
25	8076978	Circuit with noise shaper In an embodiment, a circuit comprising an oscillator is provided. The oscillator is controlled based on a feedback value and an input reference value. The feedback value or the reference value or...
26	8072280	Voltage-controlled oscillator A voltage-controlled oscillator comprises a variable inductor, a negative impedance circuit, an operating voltage source and a ground point. The variable inductor comprises a transformer and a...
27	8067987	Millimeter-wave wideband voltage controlled oscillator A voltage controlled oscillator-phase lock loop (VCO-PLL) system includes a voltage controlled oscillator (VCO) system implementing four-channel architecture, such that two bands support two...
28	8045950	Mixer circuit, receiving circuit, transmitting circuit, and method for operating a mixer circuit A mixing circuit is provided that includes a charge circuit, an oscillating circuit inlet step which is connected to a circuit which feeds an oscillating signal, and a signal inlet step. The...
29	8044739	Capacitor switching circuit A capacitance switching element includes first and second capacitors connected in series by transistors. The gates of the transistors are biased by a first signal through one set of resistors, and...
30	8044727	Phased locked loop circuit including voltage controlled ring oscillator There is provided a voltage controlled ring oscillator having a plurality of ring-connected amplifiers (401), and a plurality of variable capacitance elements (502a, 502b) being respectively...
31	8035457	Voltage controlled oscillator A voltage controlled oscillator (VCO) includes a voltage controlled current source (VCCS), a negative resistance circuit (NRC), a first transformer, a second transformer, a first transistor and a...
32	8031018	Oscillator with coupled amplifier An oscillator including a resonator with at least one first tuneable element, with which a resonant frequency of the resonator can be varied. The oscillator further includes an amplifier, which...
33	8022776	Origami cascaded topology for analog and mixed-signal applications The present disclosure relates to coupled circuits and methods of coupling circuits having a power supply wherein a plurality of transistors are inductively coupled directly to the power supply for...
34	8018292	Oscillator and communication system using the same A transfer impedance from input terminals of a resonator to output terminals of the resonator is larger than a driving-point impedance of the input terminals of the resonator at an oscillation...
35	8018312	Inductor and method of operating an inductor by combining primary and secondary coils with coupling structures An inductor and method of operating the inductor by combining primary and secondary coils with passive coupling, active parallel, or active cross-coupling structures. The first includes at least...
36	8008981	Multi-phase ultra-wideband signal generator using differential pulse oscillators and array thereof A multi-phase ultra-wideband signal generator uses differential pulse oscillators. The multi-phase ultra-wideband signal generator using differential pulse oscillators includes N pulse oscillators...
37	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...
38	7990227	Phased-locked loop (PLL) synthesizer-synthesizer with improved voltage-controlled oscillator (VCO) pre-tuning An apparatus for providing Phased-Locked Loop (PLL) synthesis comprises a phase detector, at least one switchable filter, an oscillator controlled by a control voltage (uPLL) and a divider. The...
39	7982551	Voltage controlled oscillator having temperature detecting circuit A VCO circuit includes a temperature detector circuit, a voltage generator circuit, a switch, a resonance circuit and an oscillator. The temperature detector detects a temperature, and the voltage...
40	7978015	Oscillator with reduced phase noise characteristics One well known problem associated with voltage controlled oscillators or VCOs is phase noise, and it is desirable to reduce phase noise in order to improve VCO performance. Here, a VCO is provided...
41	7978017	Control voltage generator for a clock, frequency reference, and other reference signal generator Exemplary embodiments of the invention provide a reference signal generator, system and method. An exemplary apparatus to generate a harmonic reference signal includes a reference resonator, such...
42	7956698	High-frequency voltage-controlled oscillation circuit A high-frequency voltage-Controlled oscillation circuit which does not oscillate abnormally, is improved in phase noise, and has a small circuit scale. A phase shift circuit composed of third or...
43	7952445	Method and arrangement for a voltage controlled oscillator circuit In a voltage controlled oscillator circuit comprising two transistors, the first terminals of each said two transistors, are coupled together and to a supply voltage, two interconnected resonator...
44	7944318	Voltage controlled oscillator, and PLL circuit and radio communication device each including the same A voltage controlled oscillator includes an inductor circuit, C-coupling type variable capacitance circuits, a direct-coupling type variable capacitance circuit, and a negative resistance circuit,...
45	7940224	Semiconductor device It is an object of the present invention to provide a semiconductor device which can be surely supplied electric power by electromagnetic waves in different frequency bands without preventing...
46	7936224	Voltage controlled oscillator An embodiment of the voltage controlled oscillator is provided. The oscillator comprises a first inductor set, a second inductor set, a second capacitor, a voltage source and a negative resistance...
47	7936226	Circuit and method for a wireless accessory of a moblie device The invention relates to a circuit and method for a wireless accessory of a portable computer. The circuit comprises an oscillator circuit, a control circuit connected to the oscillator circuit,...
48	7915966	Oscillator for controlling voltage The present invention relates to a resonance type voltage control oscillator. The voltage control oscillator includes an inductor unit including two inductances serially coupled to each other, a...
49	7915967	Frequency-tunable oscillator arrangement A frequency-tunable arrangement comprises a resonance circuit having a capacitive part that is tunable throughout a capacitance range. A plurality of amplifiers is coupled to the resonance circuit...
50	7911281	PLL circuit and radio communication apparatus A PLL circuit includes: a voltage-controlled oscillator including: a first oscillating portion configured to generate first differential signals; and a second oscillating portion configured to...

Matches 1 - 50 out of 1291

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