Oscillators inventions

20090278618 - System and method for cycle slip prevention in a frequency synthesizer: An improved method of cycle slip prevention in a frequency synthesizer is achieved by determining phase error between a divided VCO and reference, determining whether a phase error of a full cycle slip has occurred and in which direction and altering the phase of the VCO divided signal in the... Agent: Iandiorio Teska & Coleman

20090278611 - Integrated ramp, sweep fractional frequency synthesizer on an integrated circuit chip: An integrated ramp, sweep fractional frequency synthesizer system on an integrated circuit chip includes an integrated circuit chip having a fractional frequency synthesizer with a fractional divider responsive to a VCO and a ΔΣ modulator for modifying the divisor of the fractional divider; and a ramp generator on the same... Agent: Iandiorio Teska & Coleman

20090278612 - Oscillator gain circuit and method: A gain circuit of an oscillator circuit includes an inverter portion having an input IN and an output OUT arranged for connection to an external feedback circuit comprising a pi network. A feedback member having a first resistive element is coupled between the input IN and output OUT. An offset... Agent: HorizonIPPte Ltd

20090278613 - Two-point modulation polar transmitter architecture and method for performance enhancement: A polar transmitter includes a two-point modulation phase-locked loop (PLL) for producing an RF signal with a wide bandwidth. The PLL includes a first input for receiving a phase signal of a variable-envelope modulated signal and providing the phase signal along a first signal path to produce a first frequency... Agent: Garlick Harrison & Markison

20090278614 - Phase synchronizing circuit: A constant determination unit (90) determines various constants, that are the magnitude of a charge current outputted from a charge pump circuit (30), the time constant of a loop filter (40), and the gain of a voltage controlled oscillator (50), so as to make the proportionality constant of a natural... Agent: Mcdermott Will & Emery LLP

20090278615 - Voltage controlled oscillator including inter-terminal connection and trap circuit: A voltage controlled oscillator includes: a voltage controlled oscillation circuit, an oscillation frequency thereof being controlled by a control voltage signal; a PLL circuit that generates a control voltage signal to be input to the voltage controlled oscillation circuit; a multiplier circuit that multiplies an oscillation signal output from the... Agent: Brinks Hofer Gilson & Lione

20090278620 - Vco capacitor bank trimming and calibration: Techniques are disclosed for trimming a capacitance associated with a capacitor bank for use in a voltage-controlled oscillator (VCO). In an embodiment, each capacitance is sub-divided into a plurality of constituent capacitances. The constituent capacitances may be selectively enabled or disabled to trim the step sizes of the capacitor bank.... Agent: Qualcomm Incorporated

20090278617 - Crystal-less communications device and self-calibrated embedded virtual crystal clock generation method: This invention discloses a crystal-less communication device and self-calibrated embedded virtual crystal clock generation method. In communication systems, the invention proposes a crystal-less scheme in the device for wireless or wired-line communications. The operation concepts are that the transmitter Device-1 provides Device-2 a reference signal, and Device-2 takes this signal... Agent: Eschweiler & Associates LLC National City Bank Building

20090278616 - Method and system for correcting oscillator frequency drift: A method and apparatus for correcting oscillator frequency drift due to crystal aging. Correction signals that reflect a difference between an oscillator timing signal and a reference timing signal over a reference timing signal interval are modeled so that auxiliary correction signals can be generated in the event of loss... Agent: Withrow & Terranova, P.l.l.c.

20090278619 - Frequency and/or phase compensated microelectromechanical oscillator: There are many inventions described and illustrated herein. In one aspect, the present invention is directed to a compensated microelectromechanical oscillator, having a microelectromechanical resonator that generates an output signal and frequency adjustment circuitry, coupled to the microelectromechanical resonator to receive the output signal of the microelectromechanical resonator and, in... Agent: Kenyon & Kenyon LLP

20090273402 - Phase-locked loop: P

20090273403 - Trigger-mode distributed wave oscillator system: A Trigger-Mode Distributed Wave Oscillator that provides accurate multiple phases of an oscillation and a method of use of the same. An auxiliary oscillator triggers an oscillation on independent conductor loops or rings forming a differential transmission medium for the oscillation wave. Once the oscillation wave is triggered, the auxiliary... Agent: Oktay Enterprises International

20090273404 - Frequency adjustable surface acoustic wave oscillator: A frequency adjustable surface acoustic wave oscillator uses circuitry in which the phase relationship between the corresponding input and output signals and the voltage applied to or received by transducer fingers is controlled in such a manner that the frequency of the surface acoustic wave oscillator is arbitrarily controlled over... Agent: Gerard Carlson

20090273405 - Architecture for maintaining constant voltage-controlled oscillator gain: A voltage controlled oscillator and a method of operating a voltage-controlled oscillator are disclosed. The oscillator comprises a current controlled oscillator having a variable frequency current output, a first control path for generating a first control current having a first adjustable gain, and a second control path for generating a... Agent: Scully, Scott, Murphy & Presser, P.C.

20090273406 - Mechanically tunable printed resonator: A mechanically tunable printed resonator is provided. The mechanically tunable printed resonator includes a tuning element support maintaining a tuning element a distance above the printed resonator.... Agent: Jaeckle, Fleischmann & Mugel, LLP

20090273407 - Voltage controlled oscillator having a bandwidth adjusted amplitude control loop: An apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate an output signal oscillating at a frequency in response to a first control signal and a second control signal. The second circuit may be configured to generate the second control signal in... Agent: Christopher P Maiorana, PC Lsi Corporation

20090267697 - Frequency synthesizer using a phase-locked loop and single side band mixer: A frequency synthesizer is built using a phase locked loop incorporating a single side band mixer in the input. The single side band mixer is preferably realized with digital logic and FETs, and the resulting frequency synthesizer simultaneously improves control over the frequency resolution, noise floor and operating frequency range.... Agent: Silber & Fridman

20090267698 - Dual supply inverter for voltage controlled ring oscillator: A voltage controlled ring oscillator reduces sensitivity of an oscillation frequency to a control voltage by using a dual supply inverter logic circuit. The dual supply inverter logic circuit includes two inverter circuits coupled in parallel between an input terminal and an output terminal. The first inverter circuit is powered... Agent: Knobbe Martens Olson & Bear LLP

20090267699 - Timing oscillators and related methods: Timing oscillators as well as related methods and devices are described. A timing oscillator may include a mechanical resonating structure with major elements and minor elements coupled to the major element. The timing oscillator can generate stable signals with low phase noise at very high frequencies which allows a timing... Agent: Wolf Greenfield & Sacks, P.C.

20090267700 - Timing oscillators and related methods: Timing oscillators as well as related methods and devices are described. A timing oscillator may include a mechanical resonating structure with major elements and minor elements coupled to the major element. The timing oscillator can generate stable signals with low phase noise at very high frequencies which allows a timing... Agent: Wolf Greenfield & Sacks, P.C.

20090261909 - Voltage-controlled oscillator including plurality of delay cells: A voltage-controlled oscillator includes a delay circuit. The delay circuit includes a first buffer inverter which receives one of the differential input signal and outputs an other of the differential output signal, a second buffer inverter which receives the other of the differential input signal and outputs the one of... Agent: Mcginn Intellectual Property Law Group, PLLC

20090261910 - Method and system for configuration of a phase-locked loop circuit: A phase-locked loop (PLL) circuit configuration is implemented using a variety of methods and devices. According to one example embodiment, a low power configuration is determined for the PLL circuit which meets a set of desired phase-locked loop circuit characteristics. The PLL circuit (110) has a first frequency-divider (112, 119),... Agent: Nxp, B.v. Nxp Intellectual Property & Licensing

20090261917 - Auxiliary varactor for temperature compensation: Techniques for compensating for the effects of temperature change on voltage controlled oscillator (VCO) frequency are disclosed. In an embodiment, an auxiliary varactor is coupled to an LC tank of the VCO. The auxiliary varactor has a capacitance controlled by a temperature-dependant control voltage to minimize the overall change in... Agent: Qualcomm Incorporated

20090261911 - Multi-phase oscillator: A multi-phase oscillator includes a plurality of ring oscillators (21) each having a plurality of output ports and each formed by connecting an odd number of inverters (20) in a ring, and a plurality of resistance elements (30) coupling the output ports between the plurality of ring oscillators (21) so... Agent: Mcdermott Will & Emery LLP

20090261912 - Crystal device for surface mounting: A surface-mounted device includes a ceramic case, which has a concave portion formed by a bottom wall layer, a frame wall intermediate layer and a frame wall upper layer, and which houses at least a crystal element inside the concave portion. The ceramic case includes: arc-formed notched parts at outer... Agent: Carrier Blackman And Associates

20090261913 - Crystal device for surface mounting: A crystal device for surface mounting, in which a metal cover is jointed to the metal ring by seam welding, satisfies relationships A2/A1<C2/C1 and B2/B1<D2/D1, where A1 is a length of a long side of the metal ring, A2 is a length of a straight portion of a long side... Agent: Carrier, Blackman & Associates, P.C.

20090261915 - Crystal device for surface mounting: In a crystal device for surface mounting which is configured such that at least a crystal element 2 is housed in a ceramic case 1 in a rectangular form in plan view, which is composed of a bottom wall 1a and a frame wall 1b, and whose cross section is... Agent: Carrier Blackman And Associates

20090261914 - Crystal oscillator circuits: An oscillator circuit. A gain stage element is coupled between both terminals of the crystal. The gain stage element provides a transconductance for oscillation according to a current provided by a current source, and outputs a periodic signal through an output terminal. A bias element is coupled between an input... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20090261916 - Programmable filter for lc tank voltage controlled oscillator (vco), design structure and method thereof: A programmable filter for LC tank voltage controlled oscillator (VCO) and a design structure for a programmable filter for LC tank VCO. The programmable filter includes a proportional control comprising a plurality of capacitance biased by different input voltages and an integral control comprising a filter element with a capacitance... Agent: Greenblum & Bernstein, P.L.C