Oscillators inventions 04/08

20080094146 - Clock synthesizer with clock divider outside feedback loop and method thereof: A de-skew multiplier clock synthesizer with a clock divider outside the feedback loop of a PLL is provided. The clock synthesizer includes a phase locked loop (PLL), a clock divider, and a phase comparator. The PLL receives a reference clock and generates a PLL output clock. The clock divider receives... Agent: North America Intellectual Property Corporation

20080094147 - Method and apparatus for reducing non-montonic regions in a digitally controlled oscillator: The control word input to a Digitally Controlled Oscillator (DCO) is modified to reduce non-monotonic regions in the output response of the DCO. The DCO may be included in a Phase-Locked Loop (PLL) circuit for generating an output signal that locks onto either the phase or frequency of a reference... Agent: Coats & Bennett, PLLC

20080094144 - Fractional-n divider configurable as a polynomial function for real-time pll swept frequency applications: This invention adds a non-linear sweep accumulator to the conventional sigma-delta fractional-N divider to produce a N.F value that is a polynomial function of time. This allows any non-linear sweep profiles to be approximated.... Agent: Agilent Technologies Inc.

20080094145 - Hybrid phase-locked loop: A phase-locked loop (PLL) including a digital PFD, a digital loop filter, a decision circuit, a fractional-N PLL, and a frequency divider is provided. The digital PFD generates a first detection signal according to the phase error or frequency difference between an input signal and a feedback signal. The digital... Agent: North America Intellectual Property Corporation

20080094148 - Oscillation circuit: An oscillation circuit includes: an inverter circuit that is composed of at least one pair of transistors including an n-type transistor and a p-type transistor, the inverter circuit being formed in a single crystal semiconductor layer deposited on an insulator; a gate terminal capacitance whose one end is connected to... Agent: Oliff & Berridge, PLC

20080088378 - Phase locked loop having continuous bank calibration unit and method of preventing unlocking of pll: A phase locked loop (PLL) having a continuous bank calibration unit and a method of preventing unlocking of the PLL are provided. The PLL includes a main circuit, a voltage controlled oscillator (VCO), and a continuous bank calibration unit. The main circuit outputs a control voltage in response to an... Agent: Cantor Colburn, LLP

20080088379 - Current device and method for phase-locked loop: A current device capable of process, voltage and temperature compensation for phase-locked loop (PLL) is disclosed. The current device can adjust the central frequency of oscillation of a voltage-controlled oscillator (VCO), making a compensated central oscillating frequency not affected by all process, voltage and temperature (PVT) variations. Meanwhile, the VCO... Agent: Birch Stewart Kolasch & Birch

20080088380 - Programmable oscillators for high frequency clock generation for simulation environments: A method and programmable oscillator model are provided for implementing high frequency clock generation for a simulation environment. The programmable oscillator model includes an internal ring oscillator for generating a high frequency clock. The internal ring oscillator counts a number of clocks and determines when to switch the reference clock.... Agent: Ibm Corporation RochesterIPLaw Dept 917

20080088381 - Particle optics and waveguide apparatus: An apparatus for manipulating or modifying electromagnetic waves or electromagnetic waves or a beam of particles, eg atoms, ions, molecules or charged particles, the apparatus comprising a micro or nano electrical conductor crossbar network having multiple cross-over junctions that define respective scattering points for electromagnetic waves or the particles of... Agent: Foley And Lardner LLP Suite 500

20080088382 - Voltage controlled oscillator and its control method: An object of the present invention is to provide a voltage controlled oscillator in a microwave band without narrowing the variable frequency range and having improved phase noise characteristics. This invention is a voltage controlled oscillator in the microwave band which controls an oscillation frequency by a varactor diode, a... Agent: Sughrue Mion, PLLC

20080088383 - Crystal oscillator circuit: The output part of a power circuit with a temperature characteristic 31 is connected to the power voltage of a CMOS inverter-type oscillator circuit 4 including a crystal vibrator. The power circuit with a temperature characteristic 31 includes an amplifier 2, a diode 20 and a resistor 11. The output... Agent: Mcdermott Will & Emery LLP

20080088384 - Manufacturing method of tuning-fork type quartz crystal resonator: On a quartz crystal wafer, a metal film is formed on a quartz crystal substrate processed into a tuning-fork form by evaporation or sputtering, the metal film is patterned into desired electrode and wiring line shapes by photolithography/etching, and then a crotch portion 30 is irradiated with laser from a... Agent: Jacobson Holman PLLC

20080084250 - Frequency-multiplied clock signal output circuit: In a DPLL circuit, when the size of a data value which is output from a data latch circuit and should be naturally set in a 11-bit down-counter becomes equal to or more than 12 bits, an overflow preventing circuit substitutes the 11-bit data for the data value.... Agent: Posz Law Group, Plc

20080084248 - Oscillator and frequency detector: In an oscillating apparatus or a frequency detecting apparatus in which a center frequency and a variable frequency range are freely or optionally established with a high stability and a high accuracy, a first frequency component of a signal from a first crystal oscillator and a second frequency component of... Agent: Stanley P. Fisher Reed Smith Hazel & Thomas LLP

20080084247 - Sigma delta modulator, fractional frequency synthesizer and sigma delta modulating method: There is provided a sigma delta modulator that outputs an output signal obtained by performing sigma delta modulation on an input signal, including: a plurality of accumulators that are serially connected; and an output signal generating section that generates the output signal on the basis of comparison result signals respectively... Agent: Jianq Chyun Intellectual Property Office

20080084249 - Oscillation circuit: An output signal ZA of NAND 48a is given to a first input of NAND 48b and is given to a second input of the above NAND 48b, simultaneously through a delay circuit. Furthermore, an output signal ZB of the NAND 48b is given to the first input of NAND... Agent: Volentine & Whitt Pllc

20080084251 - Tuning-fork type piezoelectric vibrating piece and oscillator: A tuning fork type piezoelectric vibrating piece, comprising: a base unit having a base electrode for an external connection; a fork shaped arm unit extending from the base unit; a groove portion at least on a surface or a rear surface of the arm unit; a groove electrode on the... Agent: Woodcock Washburn LLP

20080084252 - Crystal oscillator: The present invention relates to a crystal oscillator formed of an AT-cut crystal piece having a rectangular shape in plan view with long edges and short edges; where a large number of the crystal pieces are placed within a hollow container having a curved inner periphery and the crystal pieces... Agent: Edwards Angell Palmer & Dodge LLP

20080084253 - Crystal oscillator: The present invention relates to a crystal unit in which rectangular excitation electrodes are formed on two main surfaces of a rectangular crystal piece, an extracting electrode extends from at least one corner portion at each of two end portions from each of the excitation electrodes, and one of the... Agent: Edwards Angell Palmer & Dodge LLP

20080079502 - Direct digital interpolative synthesis: A clock synthesis circuit includes a delta sigma modulator that receives a divide ratio and generates an integer portion and a digital quantization error (a fractional portion). A fractional-N divider divides a received signal according to a divide control value corresponding to the integer portion and generates a divided signal.... Agent: Zagorin O'brien Graham LLP

20080079500 - Method and system for a local oscillator (lo) generator architecture for multi-band wireless systems: Aspects of a method and system for identifying a local oscillator (LO) generator architecture for multi-band wireless systems are presented. Aspects of the system may include a VCO control processor and/or fractional N synthesizer control processor that enables selection, from a plurality of frequencies, of a frequency of oscillation of... Agent: Mcandrews Held & Malloy, Ltd

20080079503 - Semiconductor device including a high voltage generation circuit and method of generating a high voltage: A semiconductor memory device includes a first pump clock generator configured to generate a first pump clock signal based on a power supply voltage. The device also includes a first charge pump configured to generate a first pump output voltage in response to the first pump clock signal. The device... Agent: Volentine & Whitt PLLC

20080079501 - Technique for switching between input clocks in a phase-locked loop: A technique that is readily implemented in monolithic integrated circuits reduces or eliminates phase glitches when switching between input reference clock signals. The technique combines a pulsed phase-difference signal and a pulsed phase-difference compensation signal to substantially attenuate a DC component of the phase-difference signal and at least partially attenuate... Agent: Zagorin O'brien Graham LLP

20080079504 - Quadrature voltage controlled oscillator: Provided is a quadrature voltage controlled oscillator having only one resonant mode characteristic. The quadrature voltage controlled oscillator has a structure in which two clocks generated from respective LC resonant circuits are 90 degrees out of phase with each other using a phase detector and a loop filter, instead of... Agent: Ladas & Parry LLP

20080079505 - Surface mounting piezoelectric oscillator: To provide high reliable surface mounting oscillator that solder does not leak out by heat from the oscillator. The base print board with a terminal on the first surface and a concave on the second surface which is the opposite side of the first surface, the metal strut fixed to... Agent: Woodcock Washburn LLP

20080079506 - Oxide overstress tolerant crystal oscillator: An oscillator circuit includes a plurality of transistors that can withstand relatively low gate-to-source and gate-to-drain voltages. The oscillator circuit interfaces with an oscillator that oscillates at a relatively high voltage. The oscillator circuit includes a first set of transistors coupled to an input voltage and an output voltage of... Agent: Intel/blakely

20080079507 - Oscillator circuit: Implementations are presented herein that relate to an oscillator circuit.... Agent: Infineon Technologies Ag Patent Department

20080079508 - Lc quadrature vco having startup circuit: Provided is an Inductor-Capacitor (LC) quadrature Voltage Controlled Oscillator (VCO) having a startup circuit which can accurately select one of +90° and −90° as a phase difference between two clocks generated by the LC quadrature VCO by embodying the startup circuit therein by using a phase detector and a controller.... Agent: Ladas & Parry LLP

20080079509 - Method and apparatus for calibrating a phase locked loop in open-loop.: Methods and apparatus for calibrating a transitional loop, such as a phase locked loop, are disclosed. An example method includes performing an open loop calibration of a voltage controlled oscillator (VCO). The open loop calibration includes tuning the output oscillation frequency of the VCO to within a predetermined range of... Agent: Brake Hughes Bellermann LLP C/o Intellevate

20080079510 - Programmable phase-locked loop responsive to a selected bandwidth and a selected reference clock signal frequency to adjust circuit characteristics: A technique that is readily implemented in monolithic integrated circuits includes a phase-locked loop (PLL) that generates an output clock signal based on a reference clock signal and selectable configuration parameters. A method includes providing to a PLL circuit, selected configuration information based, at least in part, on a selected... Agent: Zagorin O'brien Graham LLP