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Oscillators March list of patents 03/08

20080068090 - Pll circuit: A PLL circuit according to an embodiment of the present invention includes: a phase comparator to output an up signal and a down signal based on a phase difference between a reference clock signal and a feedback clock signal; an offset correcting circuit to correct a pulse width of at... Agent: Mcginn Intellectual Property Law Group, PLLC

20080068091 - Frequency-locked clock generator: A frequency-locked clock generator includes a voltage-controlled oscillator (VCO), a frequency-to-current converter, a reference current source and a gain stage. The VCO generates an output signal. The frequency-to-current converter generates a converter current proportional to a frequency of the output signal. The reference current source generates a reference current. The... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20080068093 - Phase locked loop: A phase locked loop is disclosed. One embodiment includes a phase comparator having two phase comparator inputs and a phase comparator output. A filter having a filter input and a filter output is provided, wherein the filter input is connected to the phase comparator output. A voltage controlled oscillator has... Agent: Dicke, Billig & Czaja

20080068092 - Vco with independently controllable parameters: This disclosure relates to a programmable wideband, LC Tuned, Voltage Controlled Oscillator with continuous center frequency select, and independent configuration of amplitude and tuning gain. The programmability can be via on chip non-volatile memory, or through data shifted into the part and stored via a data bus.... Agent: Michael J. Ure

20080068095 - Circuit comprising a capacitive circuit component: A circuit has a first capacitive circuit component, having a first terminal and a second terminal, and an amplifier, having a first input and an output, the first input coupled to the first terminal and the output coupled to the second terminal to generate a potential difference between the first... Agent: Dicke, Billig & Czaja

20080068097 - Voltage controlled oscillator and method capable of reducing phase noise and jitter with startup gain: A voltage-controlled oscillator includes: a bias voltage generator operating to generate first and second bias voltages in response to a control signal; a voltage-controlled oscillation circuit connected to a control node and configured to generate oscillation signals in response to an input voltage; a selection signal generator operating to generate... Agent: F. Chau & Associates, LLC

20080068099 - Methods and apparatus for inline measurement of switching delay history effects in pd-soi technology: Techniques for inline measurement of switching delay history effects in an integrated circuit device are provided. A pulse is launched down a delay chain. The pulse is substantially synchronized with a signal of a ring oscillator. The delay chain and the ring oscillator comprise substantially identical gates to a defined... Agent: Ryan, Mason & Lewis, LLP

20080068100 - Power management architecture and method of modulating oscillator frequency based on voltage supply: A method and system for modulating logic clock oscillator frequency based on voltage supply. The system comprises a logic unit having a logic operation and a device to produce self-adjusting clocks to match the logic operation. The device is configured to use supply voltage as an independent variable to optimize... Agent: Greenblum & Bernstein, P.L.C

20080068102 - Surface mount type crystal oscillator: A surface mount type crystal oscillator includes a container main body including a recess on one main surface thereof and hermetically encapsulating an IC (integrated circuit) chip and a quartz crystal blank, and a mounting terminal electrically connected to the IC chip. The container main body includes a laminated ceramic... Agent: Muirhead And Saturnelli, LLC

20080068103 - Distributing frequency references: Network aware oscillator synchronization via a computer network. A correction processor connected to an oscillator uses precision timing signals propagated over a digital network to generate an error signal. IEEE-1588 time synchronization protocols produce precision time signals which are converted to precision interval signals. In one embodiment a correction processor... Agent: Agilent Technologies Inc.

20080068104 - Resonant cavities and method of manufacturing such cavities: A re-entrant resonant cavity 12 includes three parts 18, 19 and 20 which may be manufactured as metallized plastic components. The three parts 18, 19 and 20 are soldered to a multilayer PCB 23 using surface mount technology. The re-entrant stub 16 is in two portions with dielectric material provided... Agent: Lucent Technologies Inc.,

20080068094 - Fine clock resolution digital phase locked loop apparatus: A digital phase locked loop apparatus includes an input signal time detecting device that detects a phase of an input signal with prescribed time resolution obtained by dividing a cycle of an operation clock generated by a clock generator at a prescribed time. An output clock generating device outputs output... Agent: Dickstein Shapiro LLP

20080068096 - Frequency divider monitor of phase lock loop: A circuit and method for monitoring a frequency divider. The circuit including a phase locked loop circuit including a voltage controlled oscillator and a feedback frequency divider, an output of the voltage controlled oscillator connected to an input of the feedback frequency divider, and output of the feedback frequency divider... Agent: Schmeiser, Olsen & Watts

20080068098 - Vco device, and tuner, broadcast receiver and mobile telephone using the same: It is intended to provide a VCO apparatus having: a local oscillation signal generation circuit for outputting a local oscillation signal corresponding to a frequency signal of a tuned channel to be received, the frequency signal being included in high frequency signals received by an input terminal, and a mixing... Agent: Mcdermott Will & Emery LLP

20080068101 - Coupled ring oscillator and method for laying out the same: A coupled ring oscillator includes n ring oscillators (20) each including m inverter circuits (10), and a phase-coupling loop (40) in which m×n phase-coupling circuits (30), each of which couples signal phases at two points in a certain phase mode, are connected with each other to form a loop. Connection... Agent: Mcdermott Will & Emery LLP

20080068105 - Surface acoustic wave oscillator and method of varying frequency thereof: A surface acoustic wave oscillator includes: a cross-coupled circuit including first and second active elements differentially connected to first and second output terminals; first and second surface acoustic wave elements having different resonance frequencies and connected to the cross-coupled circuit in parallel; a first variable capacitance circuit including a first... Agent: Harness, Dickey & Pierce, P.L.C

20080068107 - High performance, flexible programmable clock circuit: A Programmable Crystal Oscillator/Programmable Voltage Controlled Crystal Oscillator (PXO/PVCXO) is formed on a single die that will accept multiple crystals and maintain optimum performance. A programmable transconductance amplifier allows configuration of the transconductance by configuration information stored in non-volatile memory, to match the requirements of the crystal series resistance, frequency,... Agent: Michael J. Ure

20080068106 - Overtone crystal oscillator automatic calibration system: An overtone crystal oscillator automatic calibration system including an overtone crystal oscillator with multiple programmable resistors and multiple amplifiers with supply voltage inputs and a calibration system. The calibration system adjusts the programmable resistors and the supply voltage inputs and detects oscillation of the overtone crystal oscillator. The calibration system... Agent: The Law Offices Of Gary R. Stanford

20080068108 - Systems and methods for detecting capacitor process variation: A method for detecting capacitor variation in a device comprises operating an oscillator in the device, the oscillator being an Inductive-Capacitive (LC) oscillator and including an inductor of known value and a capacitor under test, comparing an output of the oscillator to a reference output, and evaluating variation for a... Agent: Fulbright & Jaworski L.l.p

20080061888 - Multi-loop phase locked loop circuit: Disclosed is a multi-loop PLL circuit and a related method of which, the circuit includes: a first loop for generating a first control current; a second loop for generating a second control current; a loop filter for generating a control signal according to the first control current or the second... Agent: North America Intellectual Property Corporation

20080061889 - Phase synchronization circuit and electronic apparatus: A phase synchronization circuit and an electronic apparatus equipped with the phase synchronization circuit are provided. The phase synchronization circuit includes an oscillation unit, a phase comparison unit, a loop unit, a drive unit, an oscillation control signal unit, and a gain characteristic information obtaining unit. In the phase synchronization... Agent: Wolf Greenfield & Sacks, P.C.

20080061891 - Phase-locked oscillator and multi-radar system using same: In a multi-radar system, configured comprising a plurality of radar units which generate and output signals the frequency of which increases and decreases periodically, each radar unit generates and outputs signals synchronized with a prescribed sync signal, such that the upper limit and lower limit of the periodically increasing and... Agent: Bingham Mccutchen LLP

20080061893 - Systems for implementing a temperature and process compensated two-stage ring oscillator: For some embodiments, the system further comprises a compensation module configured to sense temperature and process variations and adjust a supply voltage for the two-stage ring oscillator to compensate for temperature and process variations in order to maintain a constant frequency clock signal. For such embodiments, the compensation module comprises... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20080061890 - Phase locked loop circuit: The present invention provides a PLL circuit containing a loop gain circuit capable of suppressing loop gain variation. This PLL circuit includes a counter that is driven by a voltage controlled oscillator within the PLL circuit, an accumulator (ACL) that accumulates the output of the counter, and a comparison operation... Agent: Stanley P. Fisher Reed Smith LLP

20080061892 - Single-electron injection/extraction device for a resonant tank circuit and method of operation thereof: A system for reducing phase-noise in a resonant tank circuit. The system includes a single-electron device configured to inject a single electron into the oscillator circuit tank circuit. The system further includes a synchronizer coupled to the single-electron device and configured to cause the single-electron device to inject the single... Agent: Texas Instruments Incorporated

20080061896 - Electronic oscillators having a plurality of phased outputs and such oscillators with phase-setting and phase-reversal capability: Disclosed are multiphase oscillators comprising a plurality of delay stages serially coupled in a loop by a plurality of nodes, with the loop being folded to provide two concentric rings of delay stages with equal numbers of allocated nodes. A second plurality of negative-resistance elements are provided, each element having... Agent: Baker Botts L.L.P.

20080061895 - Improved current controlled oscillation device and method having wide frequency range: A current controlled, phase locked loop device includes a phase detector configured to compare a reference frequency to an output frequency of a current controlled oscillator (ICO), a charge pump coupled to the phase detector and a low pass filter coupled to the charge pump. A voltage to current (V... Agent: Cantor Colburn LLP-ibm Burlington

20080061894 - Ring oscillator and semiconductor integrated circuit and electronic device including the same: A differential amplifier circuit includes: a differential transistor pair composed of first and second transistors; a first resistance connected to a junction point of the first and second transistors at one terminal and to a first voltage node at the other terminal; second and third resistances provided between the first... Agent: Mcdermott Will & Emery LLP

20080061897 - Integrated circuit and receiver of a global positioning system (gps): A global positioning system and integrated circuit with a differential oscillator and with a starting circuit connected to the differential oscillator, wherein the differential oscillator has a current mirror for setting an operating current through each of the two branches, the starting circuit has at least one switch connected to... Agent: Mg-ip Law, PLLC

20080061898 - Sc cut crystal unit and highly stable crystal oscillator: An SC cut crystal unit includes an SC cut quartz substrate, an exciting electrode formed on each of both surfaces of the quartz substrate, a support member supporting each of two points of the quartz substrate, and a metal case sealing the quartz substrate therein. The support member supports each... Agent: Oliff & Berridge, PLC

20080061899 - Apparatus and method for temperature compensation of crystal oscillators: An oscillator includes an oscillator circuit and a resonator that produces an output frequency. A temperature compensation circuit is coupled to the oscillator circuit. The temperature compensation circuit stabilizes the output frequency in response to changes in temperature. At least one temperature sensor and a temperature sensor signal modification circuit... Agent: Daniel J. Deneufbourg Cts Corporation

20080055009 - Local oscillator with non-harmonic ratio between oscillator and rf frequencies using digital mixing and weighting functions: A novel and useful apparatus for and method of local oscillator (LO) generation with non-integer multiplication ratio between the local oscillator and RF frequencies. The LO generation schemes presented are operative to generate I and Q square waves at a designated frequency while avoiding the well known issue of harmonic... Agent: Texas Instruments Incorporated

20080055010 - Local oscillator with non-harmonic ratio between oscillator and rf frequencies using pulse generation and selection: A novel and useful apparatus for and method of local oscillator (LO) generation with non-integer multiplication ratio between the local oscillator and RF frequencies. The LO generation schemes presented are operative to generate I and Q square waves at a designated frequency while avoiding the well known issue of harmonic... Agent: Texas Instruments Incorporated

20080055008 - Local oscillator with non-harmonic ratio between oscillator and rf frequencies using xor operation with jitter estimation and correction: A novel and useful apparatus for and method of local oscillator (LO) generation with non-integer multiplication ratio between the local oscillator and RF frequencies. The LO generation schemes presented are operative to generate I and Q square waves at a designated frequency while avoiding the well known issue of harmonic... Agent: Texas Instruments Incorporated

20080055011 - Oven controlled crystal oscillator: Conventional oven controlled crystal oscillators have a problem that heat generated by a heat generator consisting of resistors and a transistor is not transmitted uniformly over a substrate and hence a temperature difference is produced between a temperature sensor and a crystal resonator, so that reliable temperature control cannot be... Agent: Jacobson Holman PLLC

20080055007 - Multi-point modulation and vco compensation: The present invention, generally speaking, provides a VCO linearization technique applicable to advanced loop architectures. In particular, the linearization technique is applicable to a mostly-digital frequency locked loop (FLL), phase locked loop (PLL) or the like using multi-point modulation. In an exemplary embodiment, a correction table is used to form... Agent: Haverstock & Owens LLP

20080055012 - Micropower rc oscillator: A micropower RC oscillator comprises a current generating section including a current source that generates a current; and a variable resistor of which the magnitude is variably set and which is configured by combining resistor elements at a predetermined ratio, the resistor elements having opposite characteristics to each other with... Agent: Lowe Hauptman Ham & Berner, LLP

20080055013 - Magnetic drive for high and low temperature mechanical oscillators used in sensor applications: A magnetic drive and mechanical oscillator system comprising a mechanical oscillator, a coil, a means for providing alternating current to said coil thereby creating a magnetic field within and about the coil, said means including an on-off means and a ferromagnetic material in communication with the diaphragm of the mechanical... Agent: Exxonmobil Research & Engineering Company