Oscillators inventions 09/09

20090237168 - Voltage-controlled oscillator: A voltage controlled oscillator comprises first and second voltage controlled oscillator cones (4, 6) for generating I and Q quadrature components respectively. Each of the voltage controlled oscillator cores comprises an inductor (41, 61). A connecting member (70) is electrically coupled to each of said inductors, thereby forcing the same... Agent: Reed Smith LLP

20090237169 - Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling: An electrosurgical generator is disclosed. The electrosurgical generator includes a power supply for generating a DC voltage. The electrosurgical generator also includes a first parallel inductor-capacitor circuit being driven by a first signal at a first predetermined frequency and a second parallel inductor-capacitor circuit driven by a second signal at... Agent: Tyco Healthcare Group Lp

20090237170 - Method and apparatus for advanced frequency tuning: A method and apparatus for tuning the operational frequency of an electrical generator coupled to a time-varying load is described. One illustrative embodiment rapidly calculates an error (reflection coefficient magnitude) at the current operational frequency of the electrical generator; adjusts the frequency of the electrical generator by an initial step... Agent: Neugeboren O'dowd PC

20090231050 - Digital fractional-n phase lock loop and method thereof: A method for reducing a phase noise in a digital fractional-N phase lock loop (PLL) is disclosed. The method comprises: quantifying a time difference between a reference clock and a feedback clock into a time difference signal; generating a residual error signal according to the time difference signal and an... Agent: North America Intellectual Property Corporation

20090231044 - 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 generator circuit generates a voltage for coarse adjustment corresponding to the detected temperature and outputs the same voltage. The switch selects... Agent: Wenderoth, Lind & Ponack L.L.P.

20090231045 - Frequency-locking device and frequency-locking method thereof: A frequency-locking device including a digitally-controlled oscillator (DCO) and a comparing unit is disclosed. The DCO is used for generating an output frequency signal. The comparing unit receives a Keep Alive signal or a start of a frame (SOF) from a universal serial bus (USB) and the output frequency signal,... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20090231046 - Low spur phase-locked loop architecture: A low spur phase-locked loop (PLL) architecture is provided. A frequency-synthesizing PLL that includes a differential Kvco gain linearization circuit with adjustable DC offset is used to reduce clock jitter. The free-running oscillation frequency of the VCO of the PLL is centered near the desired frequency using programmable loads to... Agent: Lumen Patent Firm

20090231047 - Multi-phase voltage-control oscillator: A multi-phase voltage-control oscillator including a first voltage-control oscillator circuit and a second voltage-control oscillator circuit is provided. The second voltage-control oscillator circuit and the first voltage-control oscillator circuit have a plurality of inductors, and the inductors in the second voltage-control oscillator circuit are respectively cross-coupled with the inductors in... Agent: Jianq Chyun Intellectual Property Office

20090231048 - Bias circuit to stabilize oscillation in ring oscillator, oscillator, and method to stabilize oscillation in ring oscillator: Bias circuits to stabilize oscillation in ring oscillators, oscillators, and methods to stabilize oscillation in ring oscillators are provided. The ring oscillator includes a plurality of differential delay cells, each including a pair of input transistors, a pair of voltage-controlled resistors, and a common current source. The bias circuit includes... Agent: Oliff & Berridge, PLC

20090231049 - Oscillation circuit: An oscillation circuit of the present invention includes: an oscillation section for which an output frequency is controlled based on a control signal depending on an ambient temperature; a temperature compensation circuit for supplying the control signal to this oscillation section; and a switching switch circuit consisting of an output... Agent: Wenderoth, Lind & Ponack, L.L.P.

20090231051 - 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 variable capacitance unit coupled to the inductor unit in parallel, a negative resistance unit coupled to the inductor unit in parallel, a... Agent: Cooper & Dunham, LLP

20090224842 - Phase lock loop apparatus: A phase lock loop apparatus is disclosed. The phase lock loop apparatus comprises a phase detecting module, a logic processing module, a charge pump and loop filter (CPLF), and a voltage control oscillator. The phase detecting module detects the phase difference between an input data signal and a clock signal... Agent: Birch Stewart Kolasch & Birch

20090224837 - Preventing a false lock in a phase lock loop: The present invention determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The system energizes the sensor with a low duty cycle, gated burst of RF energy having... Agent: John S. Pratt, Esq Kilpatrick Stockton, LLP

20090224836 - Replica-bias automatic gain control: A gain control system comprises a reference stage, a bias replication stage, an operational amplifier, an automatic gain control block, a gain stage, and a crystal oscillator in one embodiment. A negative feedback loop is formed by portions of the operational amplifier, the replica biasing stage, the gain stage, and... Agent: Townsend And Townsend And Crew, LLP

20090224838 - Automatic calibration lock loop circuit and method having improved lock time: A lock loop circuit (216) includes a precharge circuit (304), an oscillator circuit (306), and a calibration circuit (309). The calibration circuit includes at least one register (362). The precharge circuit provides a precharge signal (347). The oscillator circuit provides an output frequency signal (228) in response to a steering... Agent: Vedder Price/freescale

20090224839 - Lock loop circuit and method having improved lock time: A lock loop circuit (230) includes a floating ground loop filter circuit (302) and a precharge circuit (304). The floating ground loop filter circuit includes at least one capacitive element (326, 328). The floating ground loop filter circuit provides a steering signal (334) for a controllable oscillator circuit (306) in... Agent: Vedder Price/freescale

20090224840 - Photonic diode: An element for interacting with electromagnetic radiation is disclosed, including a first self-resonant body, a second self-resonant body, and a directional device interposed between the first self-resonant body and the second self-resonant body. The directional device is adapted to inhibit propagation of electromagnetic radiation from the second self-resonant body to... Agent: Searete LLC Clarence T. Tegreene

20090224841 - Method for the detection of a predamping state and inductive sensor with predamping detection: The present invention relates to a method for the detection of a predamping state of an inductive sensor. The sensor has at least one oscillator with a resonant circuit and an oscillation amplifier. According to the method the oscillatory response of the oscillator is analyzed with an operating amplification or... Agent: Hoffman Warnick LLC

20090224843 - Programmable crystal oscillator: A crystal oscillator circuit having a parallel resonant frequency that is adjustable by switching trim capacitors in parallel with a crystal.... Agent: Bever Hoffman & Harms, LLP 901 Campisi Way

20090224844 - Extended range oscillator: Embodiments provide systems and methods for supporting reliable operation of crystals with widely varying fundamental modes of oscillation. In accordance with exemplary embodiments, an architecture is disclosed for an oscillator circuit which allows reliable operation for crystals varying over a wide frequency range, such as 12:1. Some embodiments use selectable... Agent: Townsend And Townsend And Crew, LLP

20090219099 - Digital synthesizer for low power location receivers: A high-frequency phase locked loop synthesizer having a selectable fractional-N divider and integer divider along with a phase frequency detector implemented as a CMOS logic block.... Agent: The Eclipse Group LLP

20090219100 - Voltage-controlled oscillator gain calibration for two-point modulation in a phase-locked loop: A phase-locked loop (PLL) is arranged to receive high-pass data at a first input and low-pass data at a second input. A first digital input is coupled to a primary path through a digital-to-analog converter (DAC) and a second digital input is coupled to a feedback path of the PLL.... Agent: Smith Frohwein Tempel Greenlee Blaha, LLC

20090219101 - Ovenized crystal oscillator assembly: An oscillator assembly including an oscillator seated on a pad of thermally conductive material formed on the surface of a printed circuit board and covered by a lid defining an oven for the oscillator. In one embodiment, a plurality of heaters are located on different sides of the oscillator and... Agent: Daniel J. Deneufbourg Cts Corporation

20090219102 - Stabilized electrical oscillators with negative resistance: An electrical oscillator includes a first oscillating transistor and a second oscillating transistor. The electrical oscillator also includes a first non-linear load connected to a terminal of the first oscillating transistor, and a second non-linear load connected to a terminal of the second oscillating transistor. The electrical oscillator also includes... Agent: Agilent Technologies Inc.

20090219103 - Oscillator arrangement and method for operating an oscillating crystal: The oscillator arrangement (1) comprises a differential amplifier (13) and also a first and a second terminal (2, 3). The first terminal (2) of the oscillator arrangement (1) can be coupled via a quartz resonator (10) to the second terminal (3) of the oscillator arrangement (1) and via a first... Agent: Cohen, Pontani, Lieberman & Pavane LLP

20090219104 - Mems resonator, a method of manufacturing thereof, and a mems oscillator: The invention relates to a MEMS resonator comprising a movable element (48), the movable element (48) comprising a first part (A) having a first Young's modulus and a first temperature coefficient of the first Young's modulus, and the movable element (48) further comprising a second part (H) having a second... Agent: Nxp, B.v. Nxp Intellectual Property & Licensing