Oscillators inventions 03/09

20090079508 - Pll circuit: Disclosed herein is a phase lock loop (PLL) circuit capable of executing digital control of an oscillation circuit thereof by using a dividing ratio represented by a digital value obtained by dividing an oscillation frequency by a reference frequency. The PLL circuit includes a phase comparator for comparing the digital... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20090079506 - Phase-locked loop and method with frequency calibration: A phase-locked loop including a phase-voltage conversion unit, a calibration unit, and an oscillation feedback unit is provided. The phase-voltage conversion unit receives a reference signal having a first frequency and a first phase, and a first feedback signal having a second frequency and a second phase, and produces a... Agent: Volpe And Koenig, P.C.

20090079507 - System for compensation of vco non-linearity: A nonlinearity-compensated section 23 has a pre-set compensation table containing a measured value of a voltage vtc, outputted from a loop filter 16, which is changed accordingly with respect to a change in a voltage vtfc outputted from a frequency controlling section 11. The nonlinearity-compensated section 23 sets, in the... Agent: Wenderoth, Lind & Ponack L.L.P.

20090079509 - Lc quadrature oscillator having phase and amplitude mismatch compensator: Embodiments of the invention may provide for an LC quadrature oscillator that includes two LC oscillators that are cross-coupled with each other to generate I/Q clock signals and a phase and amplitude mismatch compensator. The phase and amplitude mismatch detector may include an amplitude mismatch detectors a transconductor, and a... Agent: Sutherland Asbill & Brennan LLP

20090079510 - Integrated circuit and receiver of a global positioning system (gps): A Global positioning system and integrated circuit, and a method for starting an associated quartz oscillator with an oscillator circuit that has terminals for a quartz crystal in order to generate a reference signal, and with a status circuit connected to the oscillator circuit, wherein the status circuit has first... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20090072910 - Voltage-controlled oscillator with control range limiter: A voltage-controlled oscillator (VCO) comprising a first circuit, a second circuit, a comparator circuit, and a control unit. The first circuit can determine an output common mode voltage associated with an output of the VCO. The second circuit can generate an upper control voltage limit and a lower control voltage... Agent: Atheros Communications (delizio Gilliam) C/o Delizio Gilliam, PLLC

20090072912 - Oscillator signal generation with spur mitigation in a wireless communication device: Techniques for generating oscillator signals in a wireless communication device are described. A phase-locked loop (PLL) may be used to generate an oscillator signal for a selected frequency channel. Different PLL settings may be used for the blocks in the PLL for different frequency channels. The different PLL settings may... Agent: Qualcomm Incorporated

20090072911 - Signal generating apparatus and method thereof: A signal generating apparatus is disclosed. The signal generating apparatus includes a phase-locked loop device for generating a synthesized signal, wherein the phase-locked loop device includes a phase detector, a charge pump device, a filtering device, a controllable oscillator, and a switch device coupled to the controllable oscillator for selectively... Agent: North America Intellectual Property Corporation

20090072913 - Method and system of jitter compensation: The present invention relates to sigma-delta modulators, ΣΔ modulators, and phase locked loops. Especially, it relates to jitter compensation in ΣΔ-controlled fractional-N frequency synthesizers. Jitter compensation is introduced by means of a variable delay line.... Agent: Ericsson Inc.

20090072914 - Current source device, oscillator device and pulse generator: The present invention provides a current source device capable of cutting off an output current upon its stop and obtaining a desired output current upon its start-up. The current source device comprises a first series circuit comprising a first FET and resistors connected in series with the first FET and... Agent: Volentine & Whitt PLLC

20090072915 - Miniature rf calibrator utliizing multiple power levels: A small light-weight battery operated calibrator device provides a precise sine wave output for use in calibration of test equipment, such as a RF Power Meter or a Spectrum Analyzer. The calibration device includes two power levels, one −40 dBm and one 0 dBm. The purpose of the two power... Agent: Fliesler Meyer LLP

20090072916 - Integrated circuit distributed oscillator: An integrated circuit distributed radio frequency oscillator comprises a semiconductor chip which includes a differential input transmission line, a differential output transmission line and, coupled in parallel between these transmission lines at spaced apart portions, a number of differential amplifier cells with adjustable delay. The output end of the output... Agent: Alston & Bird LLP

20090072917 - Oscillation circuit and oscillator: An oscillation circuit includes a cross-coupled circuit having a first active element and a second active element which are differentially connected to each other. The oscillation circuit oscillates in a resonance frequency of a resonator connected between the first active element and the second active element.... Agent: Harness, Dickey & Pierce, P.L.C

20090072918 - Oscillator and method for operating the same: An oscillator includes a first comparator circuit, a second comparator circuit, an oscillation signal generator circuit, and a frequency voltage generator circuit. The first comparator circuit generates a first pulse when a frequency voltage reaches a first reference voltage, and the second comparator circuit generates a second pulse when the... Agent: Mills & Onello LLP

20090072920 - Oscillator and communication system using the same: A transfer impedance from input terminals of a resonator to output terminals of the resonator is larger than a driving-point impedance of the input terminals of the resonator at an oscillation frequency. The input terminals of the resonator are connected with the drain terminals of transistors Q1 and Q2 that... Agent: Stanley P. Fisher Reed Smith LLP

20090072919 - Voltage-controlled oscillator with wide oscillation frequency range and linear characteristics: Provided is a voltage-controlled oscillator with a wide oscillation frequency range and linear characteristics, which can linearly change an oscillation frequency versus control voltage due to a variable capacitance range increased by several MOS transistors additionally connected to an LC resonant circuit, and can control the oscillation frequency range by... Agent: Ampacc Law Group

20090066423 - Spread spectrum clocking in fractional-n pll: A combined spread spectrum and fractional-N phase locked loop circuit comprises a chain of a reference clock divider, a phase-frequency detector, a charge pump with loop filter, a voltage controlled oscillator that provides multiple phase outputs, and a feedback loop from the multiple phase outputs of the voltage controlled oscillator... Agent: Texas Instruments Incorporated

20090066425 - Frequency synthesizer having multi-band voltage controlled oscillator: There is provided a frequency synthesizer including a multi-band voltage controlled oscillator having a plurality of voltage controlled oscillating cores outputting oscillation frequencies having different bands according to an input control voltage. Each of the voltage controlled oscillating cores outputs a frequency band divided into a plurality of bands, and... Agent: Lowe Hauptman Ham & Berner, LLP

20090066424 - Programmable interpolative voltage controlled oscillator with adjustable range: A programmable interpolative voltage controlled oscillator (VCO) with adjustable frequency range output is provided. With the VCO, programmable delay cells whose size is modifiable based on control inputs to the programmable delay cells are utilized. A different set of control inputs may be provided to programmable delay cells of an... Agent: Ibm Corp. (wip) C/o Walder Intellectual Property Law, P.C.

20090066426 - Quartz crystal device including monitor electrode: A quartz crystal device includes: a crystal unit in which a crystal blank is hermetically encapsulated; and a mounting substrate housing an IC chip on which a circuit using the crystal blank is integrated. By joining an external terminal of the crystal unit and a bonding terminal of the mounting... Agent: Knobbe Martens Olson & Bear LLP

20090066427 - Poly-phase frequency synthesis oscillator: A frequency synthesis/multiplication circuit and method for multiplying the frequency of a reference signal. In one embodiment, multiple versions of the reference signal are generated having different phases relative to one another, and these multiple versions are combined to form an output signal having a frequency that is a multiple... Agent: Cypress Semiconductor Corporation

20090066428 - Device for providing an a.c. signal: A circuit for providing an A.C. signal including a number N of nanomagnetic oscillators, N being an integer greater than or equal to 2, each nanomagnetic oscillator providing a periodic signal; a unit for providing a control signal that can take N values, each periodic signal being associated with one... Agent: Stmicroelectronics Inc. C/o Wolf, Greenfield & Sacks, P.C.

20090066429 - Voltage detection circuit and oscillator using the same: Provided is a voltage detection circuit that outputs a detection result when a voltage to be measured exceeds a predetermined voltage or falls below the predetermined voltage at a speed higher than that of a conventional case. The voltage detection circuit according to the present invention includes an input buffer... Agent: Bruce L. Adams, Esq Adams & Wilks

20090066430 - Batch-fabricated, rf-interrogated, end transition, chip-scale atomic clock: A chip scale atomic clock is disclosed that provides a low power atomic time/frequency reference that employs direct RF-interrogation on an end-state transition. The atomic time/frequency reference includes an alkali vapor cell containing alkali atoms, preferably cesium atoms, flex circuits for physically supporting, heating, and thermally isolating the alkali vapor... Agent: Patent Docket Administrator Lowenstein Sandler P.C.

20090066431 - Wide-band voltage controlled oscillator: A wide-band voltage controlled oscillator includes a cross-connected transistors for providing a stable oscillating signal, an inductor unit for providing an inductance for determining a resonance frequency, a varactor bank including a plurality of switchable variable-capacitance elements parallely connected to the inductor unit and having a varactor capacitance varying with... Agent: Lowe Hauptman Ham & Berner, LLP

20090066432 - Pll circuit and semiconductor device having the same: A PLL circuit includes a phase detector, a loop filter (LF), a voltage-controlled oscillator (VCO), and a frequency divider. The phase detector compares a phase of a signal Fs which is input from outside with a phase of a signal Fo/N which is input from the frequency divider. The loop... Agent: Eric Robinson

20090066433 - Voltage controlled oscillator: The present invention provides a voltage controlled oscillator having a wide frequency variation range and an oscillation frequency that shows favorable linearity with respect to control voltage. The present invention includes an amplifier circuit 21, a piezoelectric element 22 connected in parallel to the amplifier circuit 21 and forming a... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20090066434 - Oscillator comprising a startup control device: An oscillator device comprises an oscillator core, a capacitive loading unit having a controllable capacitance value and being connected to the oscillator core, and a memory device including a first and a second memory unit and being connected to the capacitive loading unit. The first memory unit is adapted to... Agent: Potomac Patent Group PLLC

20090058536 - Apparatus and method for phase lock loop gain control using unit current sources: A gain compensator compensates for the gain variation of a varactor-tuned voltage tuned oscillator (VCO) in a phase lock loop (PLL). The VCO includes a parallel LC circuit having multiple fixed capacitors that can be switched-in or switched-out of the LC circuit according to a capacitor control signal to perform... Agent: Mcandrews Held & Malloy, Ltd

20090058535 - Constant calibration: An oscillating signal of relatively precise frequency can be generated by tuning an oscillator using an external stable oscillating source as a reference. Calibration logic can be included to compare a signal from the local oscillator to the reference signal and vary the local signal to a desired frequency. In... Agent: Apple C/o Morrison And Foerster ,llp Los Angeles

20090058537 - Pll lock time reduction: In general, in one aspect, the disclosure describes a method including determining a change in a lock state of a phase lock loop (PLL). Current provided to a charge pump (CP) is adjusted based on the change in the lock state of the PLL. The adjusting of the current is... Agent: RyderIPLaw C/o Intellevate, LLC

20090058538 - Radiation hard oscillator and differential circuit design: A radiation hard design for oscillator circuits and circuits having differential outputs is described. The design includes connecting or otherwise coupling outputs of these circuits to a passive polyphase filter. The passive polyphase filter provides four quadrature outputs that are free of glitches that may have occurred at the filter... Agent: Honeywell International Inc.

20090058539 - Period signal generator of semiconductor integreated circuit: A period signal generator comprises a first period signal generating unit for generating a first period signal of which period changes according to a temperature, a second period signal generating unit for generating a second period signal which has a constant period regardless of a temperature, and a period signal... Agent: Baker & Mckenzie LLP Patent Department

20090058541 - High-frequency ring coupled quad: The present invention discloses a high-frequency ring coupled Quad comprising at least two transistors, which are cascaded to form a ring and bonded to resonators to form an oscillation source. The open loop feedback gain of the ring coupler of the present invention is higher than that of a conventional... Agent: Rosenberg, Klein & Lee

20090058540 - Microelectronic die having cmos ring oscillator thereon and method of using same: A microelectronic die including a CMOS ring oscillator thereon, and a method of using the same. The microelectronic die includes: a die substrate; and a plurality of CMOS ring oscillators on the die substrate, the ring oscillators being disposed at regions of the die substrate that are adapted to exhibit... Agent: Intel/bstz Blakely Sokoloff Taylor & Zafman LLP

20090058542 - Variable frequency oscillating circuit: Provided is a variable frequency oscillating circuit which has a small circuit size and is unlikely to cause a semiconductor device to malfunction. One oscillating circuit (3) is used, and thus the circuit size is not increased. When a frequency control signal (SF) is switched, constant currents (I2 and I3)... Agent: Bruce L. Adams, Esq Ada,s & Wilks

20090058543 - Temperature detecting semiconductor device: There is provided a technique which is capable of detecting a temperature of a semiconductor device with high precision. A temperature detection circuit detecting a temperature of a semiconductor device includes a first short-cycle oscillator generating a first clock signal having positive temperature characteristics with respect to a frequency, a... Agent: Buchanan, Ingersoll & Rooney PC

20090058544 - Surface-mount crystal oscillator: A surface-mount crystal oscillator includes: a crystal blank; an IC chip in which at least an oscillation circuit using the crystal blank is integrated, a plurality of IC terminals are provided on one principal surface, and a plurality of mounting terminals for surface mounting are provided on the other principal... Agent: Cantor Colburn, LLP

20090058545 - Atomic ion clock with two ion traps, and method to transfer ions: An atomic ion clock with a first ion trap and a second ion trap, where the second ion trap is of higher order than the first ion trap. In one embodiment, ions may be shuttled back and forth from one ion trap to the other by application of voltage ramps... Agent: Seth Z. Kalson C/o Intollevate

20090058546 - Oscillator circuit and electronic device having oscillator circuit: An oscillator circuit includes a first terminal, a second terminal, a resonator that is connected to the first terminal and the second terminal, a first capacitor that is connected to the first terminal and a ground line supplying the ground electric potential, a second capacitor that is connected to the... Agent: Townsend And Townsend And Crew, LLP

20090058547 - 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 having an annular ring, a lead arranged to penetrate through the ring in which one end side thereof is an inner lead portion electrically connected to a piezoelectric vibrating piece and the other end side thereof is an outer lead portion electrically connected... Agent: Brinks Hofer Gilson & Lione

20090058548 - Method and signal control system providing fast transitions in an oscillating signal: In one embodiment, a signal control system has a signal output and includes: 1) a phase-locked loop (PLL) having a voltage-controlled oscillator (VCO), a phase error detector, an oscillating output coupled to the signal output of the signal control system, and a programmable frequency divider coupled in a feedback path... Agent: Agilent Technologies Inc.