Oscillators inventions 06/08

20080150640 - Spin oscillator device: A spin oscillator device generates a microwave output in response to an applied DC current. The device includes a spin momentum transfer (SMT) stack including a top electrode, a free layer, a nonmagnetic layer, a pinned magnetic structure, and a bottom electrode. A local magnetic field source adjacent the SMT... Agent: Kinney & Lange, P.a.

20080150641 - Systems involving temperature compensation of voltage controlled oscillators: Systems involving temperature compensation of voltage controlled oscillators are provided. In this regard, a representative system incorporates: a voltage controlled oscillator (VCO) having a tuning port and a phase-locked loop (PLL); and a temperature dependent voltage source. The VCO selectively exhibits one of a coarse tuning mode in which the... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20080150642 - 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: Neil Steinberg

20080150643 - Microwave transmission line integrated microwave generating element and microwave transmission line integrated microwave detecting element: Microwave generating and detection portions of a electronic circuit is improved in efficiency and reduced in size. A microwave generating element A comprises a lower electrode 1, a layer 3 formed on the lower electrode 1 in an island shape, forming a magnetoresistance element, an insulator 7 formed on the... Agent: Stanley P. Fisher Reed Smith LLP

20080150645 - Discrete clock generator and timing/frequency reference: In various embodiments, the invention provides a discrete clock generator and/or a timing and frequency reference using an LC-oscillator topology, having a frequency controller to control and provide a stable resonant frequency, which may then be provided to other, second circuitry such as a processor or controller. Frequency stability is... Agent: Gamburd Law Group Llc

20080150644 - Voltage controlled oscillator and frequency control method of the voltage controlled oscillator: A voltage controlled oscillator of the present invention includes power supply terminal (101), control terminal (2) for controlling an output frequency, output terminals (3a, 3b), cross-coupled transistors (5a, 5b), capacitances (6a, 6b, 7a, 7b), LC tanks (10a, 10b), resistor (117), grounding capacitance (18) and center frequency control circuit (16). Center... Agent: Mcginn Intellectual Property Law Group, Pllc

20080150646 - Variable rc oscillator: An RC oscillator is provided. The oscillator includes an RC selecting switch disposed in an input port of the oscillator, a resistor output port, a capacitor output port, at least a resistor switch with a first end connected to the RC selecting switch and a second end floatingly connected to... Agent: Volpe And Koenig, P.c.

20080150647 - Method and apparatus for mems oscillator: A resonator includes a CMOS substrate having a first electrode and a second electrode. The CMOS substrate is configured to provide one or more control signals to the first electrode. The resonator also includes a resonator structure including a silicon material layer. The resonator structure is coupled to the CMOS... Agent: Townsend And Townsend And Crew, LLP

20080150648 - Direct modulation type voltage-controlled oscillator using mos varicap: Transistors M11 and M12 are cross-coupled to each other so as to form a negative resistance circuit. First and second variable capacitor sections 10 and 20 are connected in parallel with an inductor circuit so as to form a parallel resonant circuit. A first reference voltage Vref1 and a control... Agent: Wenderoth, Lind & Ponack L.l.p.

20080143446 - Low phase-noise oscillator: A tail-tank coupling technique combines two complementary differential LC-VCOs to form a quadrature LC-VCO. The technique reduces phase noise by providing additional energy storage for noise redistribution and by cancelling noise injected by transistors when they operate in the triode region. The resulting noise factor is close to the theoretical... Agent: Alan Neil Willson, Jr.

20080143447 - High-frequency oscillator: Provided is a high-frequency oscillator whose output power increases without a change in physical size of the entire high-frequency oscillator and deterioration of a phase noise characteristic. The high-frequency oscillator for harmonic extraction includes: an active element (5); a fundamental reflection stub (9) provided on a signal line located on... Agent: Leydig Voit & Mayer, Ltd

20080143448 - Proximity switch and method for operating a proximity switch: The invention relates to a proximity switch, particularly an inductive proximity switch, with an oscillator having an at least partly self-compensated feedback network influenceable by a target to be detected, as well as an oscillator amplifier. The invention is characterized in that the oscillator amplifier has an amplifier component and... Agent: Hoffman Warnick & D'alessandro, Llc

20080143449 - Temperature-sensitive current source: A temperature-sensitive current source includes a first MOS transistor having a source coupled to a first voltage; a second MOS transistor having a source coupled to the first voltage, and a gate coupled to a gate of the first MOS transistor, such that a current output at a drain of... Agent: L. Howard Chen, Esq. Kirkpatrick & Lockhart Preston Gates Ellis LLP

20080143450 - Piezoelectric oscillator and method for manufacturing the same, and mems device and method for manufacturing the same: A piezoelectric oscillator includes: a base substrate; a frame-like supporting section formed from a portion of the base substrate; and a plurality of oscillator sections, wherein each of the oscillator sections includes an oscillation section that is formed from a portion of the base substrate, and has one end affixed... Agent: Harness, Dickey & Pierce, P.L.C

20080143451 - Driving a mems oscillator through a secondary set of support arms: A MEMS oscillator, such as a MEMS scanner, has an improved and simplified drive scheme and structure. Drive impulses may be transmitted to an oscillating mass via torque through the support arms. For multi-axis oscillators drive signals for two or more axes may be superimposed by a driver circuit and... Agent: Microvision, Inc.

20080143452 - Systems and methods with reduced reference spurs using a crystal oscillator for broadband communications: Systems and methods are provided. In this regard, a representative system incorporates a crystal oscillator circuit and a digital automatic level control circuit. The digital automatic level control circuit is operative to: convert an oscillation amplitude of the crystal oscillator circuit to a proportional DC voltage; convert the DC voltage... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20080143453 - Oscillator circuit, pll circuit, semiconductor chip, and test apparatus: An oscillator circuit that generates an oscillation signal is provided. The oscillator circuit includes: a voltage controlled oscillator that outputs the oscillation signal with a frequency corresponding to a provided control voltage; and a jitter demodulator that extracts a phase fluctuation component of the oscillation signal outputted by the voltage... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20080143454 - Integrated clock generator and timing/frequency reference: In various embodiments, the invention provides a clock generator and/or a timing and frequency reference using an LC-oscillator topology, having a frequency controller to control and provide a stable resonant frequency, which is integrated with other, second circuitry such as a processor or controller. Frequency stability is provided over variations... Agent: Gamburd Law Group Llc

20080136540 - Method and system for use of tspc logic for high-speed multi-modulus divider in pll: Aspects of a method and system for use of true single phase clock (TSPC) logic for a high-speed multi-modulus divider in a phase locked loop (PLL) are provided. A fractional-N PLL synthesizer may comprise a divider that generates a divider signal from a VCO output reference signal. The divider may... Agent: Mcandrews Held & Malloy, Ltd

20080136531 - Adaptive bandwidth phase locked loop with feedforward divider: In some embodiments, a chip includes first and second sub phase lock loops (sub-PLLs) including first and second voltage controlled oscillators (VCOs) to provide first and second VCO output signals and first and second feedforward divider circuits to divide first and second frequencies of the first and second VCO output... Agent: Silicon / Blakely Blakely Sokoloff Taylor & Zafman

20080136532 - Phase locked loop with adaptive phase error compensation: An adaptive phase-locked loop (PLL) circuit produces an output signal having a frequency in reference to the frequency of a reference signal. The PLL circuit includes an oscillator configured to generate the output signal according to a frequency control signal, and a processing circuit configured to generate a feedback signal... Agent: Mcdermott Will & Emery LLP

20080136533 - Method and system for fast pll close-loop settling after open-loop vco calibration: Aspects of a method and system for a fast phase-locked loop (PLL) close-loop settling after an open-loop voltage controlled oscillator (VCO) calibration are provided. A fractional-N PLL synthesizer may comprise a VCO, a phase-frequency detector (PFD), a D flip-flop, a divider, a charge pump, and a loop filter. The synthesizer... Agent: Mcandrews Held & Malloy, Ltd

20080136535 - Low phase noise phase locked loops with minimum lock time: A phase locked loop with improved lock time is achieved using a controller coupled to receive a reference signal and operable to generate a frequency divider control signal based upon the reference signal to control operation of a frequency divider. The PLL further includes a phase frequency detector for producing... Agent: Garlick Harrison & Markison

20080136534 - Method and system for implementing a low power, high performance fractional-n pll: Aspects of a method and system for implementing a low power, high performance fractional-N PLL synthesizer are provided. The synthesizer comprises a reference generator/buffer, a charge pump, a divider, a VCO, a loop filter, and a phase-frequency detector (PFD). The reference generator/buffer may increase the frequency of the input reference... Agent: Mcandrews Held & Malloy, Ltd

20080136536 - Phase locked loop with capacitive loop filter: An integrated circuit radio transceiver and method therefor includes capacitive loop filter with selectable capacitive elements that are operable to adjust a signal level provided to a voltage controlled oscillator to control a frequency of an output signal of the oscillator. A plurality of switches are controlled by logic to... Agent: Garlick Harrison & Markison

20080136545 - Delay stage with controllably variable capacitive load: Disclosed herein are embodiments of controllably variable capacitor loads that may be used with delay stages or other elements, for example, in a voltage controlled oscillator.... Agent: Intel/blakely

20080136537 - Frequency synthesizer: A voltage-controlled ring oscillator comprises a ring oscillator having a plurality of differential delay stages for generating signals having a common programmable oscillation frequency with different phases, and a pair of single-sideband mixers coupled to the differential delay stages for producing in-phase and quadrature phase signals having a frequency that... Agent: Steven J. Shattil

20080136538 - Reference-less clock circuit: A programmable reference-less oscillator provides a wide range of programmable output frequencies. The programmable reference-less oscillator is implemented on an integrated circuit that includes a free running controllable oscillator circuit such as a voltage controlled oscillator (VCO), a programmable divider circuit coupled to divide an output of the controllable oscillator... Agent: Zagorin O'brien Graham LLP

20080136539 - Voltage controlled oscillation circuit: In a voltage controlled oscillation circuit including a cascade connection of a voltage-to-current conversion circuit (310) for generating an input voltage converted current which is a current corresponding to an input voltage and a current controlled oscillation circuit (120) of which an oscillation frequency varies according to the input voltage... Agent: Mcdermott Will & Emery LLP

20080136542 - Composite resonance circuit and oscillation circuit using the circuit: There is provided a resonance circuit using piezoelectric vibrator such as a quartz resonator, a coil, a capacitor, or an element equivalent to them in combination. When two resonance circuits having different resonance frequencies are combined, it is possible to configure an oscillation circuit and a filter capable of freely... Agent: Mcginn Intellectual Property Law Group, Pllc

20080136541 - Oscillator circuit: This invention is directed to achieve the oscillator circuit with a shorter oscillation stabilizing period and a lower consumption of the electric current. The oscillator circuit 10 has the amplifier circuit (inverter circuit 11), and the clock signal CLK is outputted from the output terminal of the inverter circuit 11.... Agent: Morrison & Foerster LLP

20080136543 - Oscillator system, method of providing a resonating signal and a communications system employing the same: An nth-order oscillator system for providing a resonating signal, a method of generating a resonating signal and a communications system. In one embodiment, the nth-order oscillator system, n being greater than two, includes (1) an amplifier configured to provide an intermediate signal and (2) a feedback loop including an nth-order... Agent: Texas Instruments Incorporated

20080136544 - Programmable varactor for vco gain compensation and phase noise reduction: A programmable varactor apparatus may include multiple binary weighted varactors controlled by multiple digital varactor bits. A programmable varactor apparatus may include a plurality of binary weighted varactors, and a control to selectively disable one or more of the plurality of binary weighted varactors to decrease an effective capacitance of... Agent: Qualcomm Incorporated

20080129396 - Phase locked loop, semiconductor device, and wireless tag: An object is to provide a PLL having a wide operating range. Another object is to provide a semiconductor device or a wireless tag which has a wide operating range in a communication distance or temperature by incorporating such a PLL. The semiconductor device or the wireless tag includes a... Agent: Eric Robinson

20080129388 - System and method for reducing transient responses in a phase lock loop with variable oscillator gain: A system and method for reducing the transient responses in a phase lock loop (PLL) (100) with variable oscillator gain is disclosed. The system includes a charge pump (104) having an adapt mode and a normal mode of operation. The charge pump (104) also includes controlled trickle currents from current... Agent: Motorola, Inc

20080129389 - Phase-controlled current source for phase-locked loop: A phase-controlled current source for phase-locked loop, the phase-locked loop comprises of a voltage-controlled oscillator to associate a charging path or discharging path in order to generate an output signal and the output signal is further sensed so as to generate a loop signal, then, together with a reference signal,... Agent: Birch Stewart Kolasch & Birch

20080129390 - System and method for increasing radio frequency (rf) microwave inductor-capacitor (lc) oscillator frequency tuning range: System and method for increasing the frequency tuning range of a RF/microwave LC oscillator. A preferred embodiment comprises a voltage controlled oscillator (VCO) configured to generate an output signal at a frequency that is dependent upon a magnitude of an input voltage level and an effective inductance of an inductive... Agent: Texas Instruments Incorporated

20080129391 - Pll apparatus for ofdm system having variable channel bands and operating method thereof: Provided are a PLL apparatus for an OFDM system having variable channel band and an operating method thereof. The PLL apparatus includes a frequency divider for dividing an oscillating signal; a phase detector for detecting a phase difference between a reference signal and the divided oscillating signal from the frequency... Agent: Ladas & Parry LLP

20080129392 - Colpitts quadrature voltage controlled oscillator: Provided is a colpitts quadrature voltage controlled oscillator capable of obtaining quadrature orthogonal signals using a quadrature combination between a base and a collector of each transistor, without using an additional circuit such as a coupled transistor, a coupled transformer, a multiphase RC filter, etc. Accordingly, since nonlinearity, increased phase... Agent: Rabin & Berdo, Pc

20080129393 - Voltage controlled oscillator: A ring oscillator based voltage controlled oscillator (VCO) is disclosed. The VCO includes a set of delay cells connected to each other in a ring configuration. Each of the delay cells includes a source-coupled input transistor pair, a current-steering transistor pair and a pair of load resistors. The source-coupled input... Agent: Dillon & Yudell LLP

20080129394 - Assembly comprising a support element and a chip, support element, method for shielding, and method for protecting: An assembly includes a support element and a chip having contact elements. The chip is mounted onto the support element with the contact elements facing the support element. A shield layer is on the support element for electrically or magnetically shielding a circuit element of the chip.... Agent: Brinks Hofer Gilson & Lione/infineon Infineon

20080129395 - Piezoelectric resonator for oscillator and surface mount type piezoelectric oscillator: A piezoelectric resonator for an oscillator contained in an upper concave portion of an insulating case that has a metal lid with which the upper concave portion is air-tightly closed comprises a GND electrode being conductively coupled to an earth pattern of the piezoelectric resonator and provided on an outer... Agent: Oliff & Berridge, Plc

20080129397 - Electromagnetic electric generator: An electrical generator that uses a high frequency oscillator in a tuned circuit, set to resonate with the transmitter coil of a full-length high frequency transformer unit, to generate electromagnetic energy, to transform this energy to electrical energy and to collect this energy.... Agent: Troutman Sanders LLP

20080129398 - High resolution digitally controlled oscillator: This disclosure describes designs for a digitally controlled oscillator (DCO). The DCO can overcome many of the shortcomings associated with conventional voltage controlled oscillators (VCOs), and may improve wireless communication devices. The described DCO may improve the frequency synthesis process, reduce noise in a wireless communication device, and allow for... Agent: Qualcomm Incorporated

20080129399 - Low power consumption frequency divider circuit: The present invention discloses a low power consumption frequency divider circuit. It mainly comprises a signal source; a signal injection circuit; and an oscillator circuit. The low-power consumption frequency divider circuit according to the present invention mainly uses the configuration of current reused circuit to form the common current path... Agent: Birch Stewart Kolasch & Birch

20080129400 - Sawtooth oscillator having controlled endpoints and methodology therefor: A controlled endpoint sawtooth waveform generator and methodology is implemented by a circuit that uses charge sharing between capacitors to produce a sawtooth having one or both endpoints that are suspended between the power supply rail and ground. The circuit may comprise a timing capacitor to which a charging source... Agent: Mcdermott Will & Emery LLP

20080129401 - High-frequency oscillator: A high-frequency oscillator includes a high-frequency oscillation element having a magnetization pinned layer whose magnetization direction is pinned substantially in one direction, an oscillation layer formed of a magnetic material which generates a high-frequency oscillation phenomenon when a current is supplied, an intermediate layer provided between the magnetization pinned layer... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20080129402 - Automatic switching phase-locked loop: An automatic switching phase-locked loop (PLL) is disclosed, including a phase detector, a charge pump generating a pump current, a band selector receiving a control voltage to produce a band selection signal and a voltage setting signal based the control voltage, a loop filter generating the control voltage corresponding to... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20080129403 - Dual-band voltage controlled oscillator: The present invention discloses a dual-band voltage controlled oscillator (VCO), comprising a plurality of resonant circuits; an inductor module; a plurality of switches of current source; a buffer circuit; and a output port. The dual-band voltage controlled oscillator (VCO) according to the invention uses the current source in such two... Agent: Birch Stewart Kolasch & Birch

20080129404 - Low-power oscillator: A circuit can include an oscillator core that outputs, in response to a bias signal, a periodic signal having an oscillation frequency; a bias circuit that, when powered, provides the bias signal (e.g., a voltage) to the oscillator core; and a switching circuit that periodically powers the bias circuit at... Agent: Fish & Richardson P.c.