Oscillators inventions 02/09

20090051450 - Clock generation circuit and clock generation control circuit: According to a preferred embodiment, a clock signal generation circuit includes an oscillating circuit configured to output a clock signal having a clock frequency corresponding to a control signal, a counter configured to generate a count value by counting a pulse number of the clock signal outputted from the oscillating... Agent: Watchstone P+d, PLLC

20090051444 - Frequency-corrected clock signal generation integrated circuit device: An integrated circuit device including: an oscillation circuit that generates a first clock signal; a frequency comparison section that compares a frequency of the first clock signal with a frequency of a second clock signal; and a clock signal generation section that generates a third clock signal based on the... Agent: Oliff & Berridge, PLC

20090051443 - Oscillator stabilized for temperature and power supply variations: A circuit may comprise an amplifier powered by a first supply voltage, with a first input of the amplifier coupled to a stable reference voltage, and the output voltage of the amplifier provided as a designated supply voltage to an oscillator configured to produce a periodic signal having a specified... Agent: Jeffrey C. Hood Meyertons Hood Kivlin Kowert & Goetzel PC

20090051445 - Loosely-coupled oscillator: Aspects and embodiments of the present invention provide a loosely-coupled oscillator including a sensor circuit and an electronic device that are not physically connected. In some embodiments, the electronic device includes an amplifier stage and a feedback network and the sensor circuit includes one or more LC circuits. When electromagnetically... Agent: John S. Pratt, Esq Kilpatrick Stockton, LLP

20090051446 - Ovenized oscillator: An ovenized oscillator package including at least a heater and a crystal package mounted on opposite sides of a circuit board. Vias extend through the body of the circuit board to transfer heat from the heater to the crystal package. Layers of thermally conductive material extend through the body of... Agent: Daniel J. Deneufbourg Cts Corporation

20090051447 - Ovenized oscillator: An ovenized oscillator package including a ball grid array substrate seated on a circuit board, a heater and a temperature sensor mounted on the ball grid array substrate, and a crystal package mounted to the ball grid array substrate and overlying at least the heater. A layer of thermally conductive... Agent: Daniel J. Deneufbourg Cts Corporation

20090051448 - Second harmonic oscillator: A second harmonic oscillator has a series positive feedback configuration, suppresses output of a fundamental signal, and outputs a second harmonic signal having a frequency in a range from 1 GHz to 200 GHz generated inside of a circuit. The second harmonic oscillator includes: a transistor having a base terminal,... Agent: Leydig Voit & Mayer, Ltd

20090051449 - Dielectric resonator oscillator and radar system using the same: In the mass production of dielectric resonator oscillators (DROs), it is necessary to regulate the position where a dielectric resonator is placed with a high degree of accuracy and thus time required for the assembly work increases undesirably. Further, a terminating resistor and earthing means are formed at an end... Agent: Miles & Stockbridge PC

20090051451 - Gyromagnetic precession oscillator: The present invention is, in one aspect, a radio frequency source, comprising a gyromagnetic precession oscillator. In a second aspect, the gyromagnetic precession oscillator comprises a closed, non-magnetic, cylindrical outer conductor defining a cavity therein; an axial field solenoid wound about the outer conductor; a non-magnetic, cylindrical inner conductor disposed... Agent: Jeffrey A. Pyle Williams, Morgan & Amerson, P.C.

20090051452 - Oscillation device and inspection apparatus: An oscillation device has a resonant tunneling diode formed by interposing a gain medium including a first barrier layer, a quantum well layer and a second barrier layer between a first thickness adjusting layer and a second thickness adjusting layer. The oscillation device also has a switch for switching the... Agent: Fitzpatrick Cella Harper & Scinto

20090051453 - Voltage-controlled oscillator using lc resonator: Provided is a voltage-controlled oscillator (VCO) using an LC resonator circuit which includes a first resonance circuit in which two serially connected varactor diodes and an inductor are connected in parallel, a second resonance circuit in which one or more inductor L1 and one or more capacitor C1 are connected... Agent: Cantor Colburn, LLP

20090051454 - Voltage controlled oscillator: According to one aspect of the present invention, there is provided a voltage controlled oscillator controlling frequency of an output signal according to input voltage, the voltage controlled oscillator including a current controlled oscillator setting the frequency of the output signal based on control current, and a voltage-current converter including... Agent: Mcginn Intellectual Property Law Group, PLLC

20090045880 - Digital controlled oscillator: A digital controlled oscillator including a programmable current source, a first variable capacitor and a second variable capacitor. A comparator compares the voltage across the variable capacitors with a reference voltage level and generates a DCO output clock signal. A switching means alternately switches the variable capacitors to either charge... Agent: Texas Instruments Incorporated

20090045881 - Method and apparatus for calibrating a voltage controlled oscillator by varying voltage applied to power supply input: Methods and apparatus are provided for calibrating a voltage controlled oscillator, such as an N-stage voltage controlled ring oscillator. The voltage controlled oscillator comprises a power supply input and at least one gate delay element and has a frequency that is a function of a delay of the gate delay... Agent: Ryan, Mason & Lewis, LLP

20090045883 - Self refresh oscillator and oscillation signal generation method of the same: A self refresh period signal generator includes: a voltage detection unit for detecting a voltage level of a power supply voltage in order to generate a plurality of period control signals according to the detected voltage level; and an oscillation unit for generating a ring oscillation signal having a constant... Agent: Mcdermott Will & Emery LLP

20090045882 - System for generating a multiple phase clock: A system for generating a multiple phase clock. The system includes a ring oscillator structure for generating multiple phases. The structure includes two or more unit oscillators, each unit oscillator implemented by a ring oscillator having M stages. The structure also includes a horizontal loop coupling the two or more... Agent: Cantor Colburn LLP-ibm Poughkeepsie

20090039969 - Voltage-controlled oscillator circuit and phase locked loop circuit using the same: To set a best oscillation state of a voltage-controlled oscillator (VCO) circuit, it is necessary to evaluate variability of manufactured ICs to specify set values based on the variability. Provided is an oscillator including: a terminal receiving a first signal; a VCO coupled to the terminal, the VCO oscillating to... Agent: Mcginn Intellectual Property Law Group, PLLC

20090039968 - Dual loop architecture useful for a programmable clock source and clock multiplier applications: A first phase-locked loop (PLL) circuit includes an input for receiving a timing reference signal from an oscillator, a controllable oscillator circuit supplying an oscillator output signal, and a multi-modulus feedback divider circuit. A second control loop circuit is selectably coupled through a select circuit to supply a digital control... Agent: Zagorin O'brien Graham LLP

20090039967 - 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 controlled oscillator has two inputs, wherein the control voltage (uPLL) is coupled to a first input, and a selection voltage (uSET)... Agent: Ditthavong Mori & Steiner, P.C.

20090039973 - Vco driving circuit and frequency synthesizer: A VCO driving circuit and a frequency synthesizer wherein the impedance viewed from a VCO control terminal is reduced to prevent the VCO phase noise characteristic from degrading. A VCO driving circuit and a frequency synthesizer having the VCO driving circuit, which comprises a coarse adjustment DAC that receives a... Agent: Jacobson Holman PLLC

20090039970 - Crystal oscillator frequency tuning circuit: Embodiments feature techniques and systems for analog and digital tuning of crystal oscillators. In one aspect, some implementations feature a method for tuning a frequency of a crystal oscillator that can include adjusting the tuning frequency of the crystal oscillator from a nominal frequency via a switched-capacitor frequency tuning circuit,... Agent: Fish & Richardson P.C.

20090039971 - Method of fabricating hermetic terminal and hermetic terminal, method of fabricating piezoelectric oscillator and piezoelectric oscillator, oscillator, electronic appliance, and radio clock: A method of fabricating a hermetic terminal includes: joining and firing wherein a bar-shaped member to be a lead is inserted into a ring, and they are fired to form a hermetic terminal intermediate having the bar-shaped member fixed in the ring; flattening wherein an end part of the bar-shaped... Agent: Brinks Hofer Gilson & Lione

20090039972 - Pulse shaping circuit for crystal oscillator: A circuit arrangement and method utilize a variable threshold, multi-stage pulse shaping circuit to pulse shape a signal output by a crystal oscillator circuit. Each stage of the pulse shaping circuit includes a Schmitt trigger that drives an input of a latch, and that has a programmable trip point controlled... Agent: Nxp, B.v. Nxp Intellectual Property Department

20090033427 - Oscillator, pll oscillator, radio apparatus: An oscillator includes a plurality of oscillating units connected in parallel with each other, and a control unit which controls the number of parallel connections of the plurality of oscillating units based on an instruction signal indicating accuracy to be tolerated with respect to oscillation outputs of the oscillating units.... Agent: Amin, Turocy & Calvin, LLP

20090033429 - Phase locked loop for stably operating in a matter that is insensitive to variation in process, voltage and temperature and method of operating the same: A phase locked loop for stably operating in a matter that is insensitive to variation in PVT and a method of operating the same. The PLL according to the present invention includes a PFD, a charge pump circuit, a loop filter, a VCO, and a peak voltage detector. The PFD... Agent: Lowe Hauptman Ham & Berner, LLP

20090033428 - Voltage controlled oscillator: An integrated circuit is provided. The integrated circuit comprises a voltage controlled oscillator and a first compensation capacitor. The voltage controlled oscillator generates an oscillation signal. The first compensation capacitor, coupled in parallel to the voltage controlled oscillator, receives a control voltage to generate a negative temperature coefficient capacitance to... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20090033433 - Circuits, systems, and methods for a voltage controlled oscillator with coarse, fine, and center tuning: Circuits, systems, and methods for generating a variable oscillator output. The circuits generally comprise a capacitor configured to receive first and second currents of a first polarity (e.g., charging currents) and a third current of a second polarity opposite to the first polarity (e.g., a discharge current). The circuit further... Agent: Epson Research And Development Inc Intellectual Property Dept

20090033434 - Oscillation circuit: A first switch (SW1) is connected in series between a first capacitor (1) and a grounding wire, and when an RTC oscillation apparatus is connected and an IC chip (10) is configured as an external input buffer circuit, the first switch (SW1) is turned off. Thus, the first capacitor (1)... Agent: Connolly Bove Lodge & Hutz LLP

20090033430 - Injection-locked frequency divider: An injection-locked frequency divider includes a ring oscillator, a signal injection circuit, a first adjustable load circuit and a second adjustable load circuit. The ring oscillator generates an oscillation signal according to a differential signal outputted by the signal injection circuit. According to an adjustable voltage, the first and second... Agent: Bacon & Thomas, PLLC

20090033431 - Oscillation circuit: The present invention provides a highly accurate oscillation circuit. For example, the oscillation circuit includes plural ring oscillator units RO1 and RO2 including inverter circuits IV of an odd number of stages, and an adding unit ADD that adds signals of output nodes RO—01 and RO—02 of the RO1 and... Agent: Antonelli, Terry, Stout & Kraus, LLP

20090033432 - Oscillation driver device, physical quantity measuring device, and electronic instrument: An oscillation driver device includes a gain control amplifier, an automatic gain control circuit, and a mode setting circuit. When the mode setting circuit has switched a mode from a normal operation mode to a low power consumption mode, the automatic gain control circuit is disabled, and the gain in... Agent: Oliff & Berridge, PLC