Oscillators inventions 09/07

20070222525 - Voltage controlled oscillator, operation current adjusting device, and operation current adjusting method of voltage controlled oscillator: A voltage controlled oscillator has an amplifier circuit which includes an inductor and a variable capacitance element, and outputs an oscillation signal of an oscillation frequency corresponding to an oscillation frequency control voltage supplied to the variable capacitance element; and a power supply circuit which supplies an operation current to... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070222526 - Digitally controlled oscillator device and method for generating an oscillating signal with a digitally controlled phase locked loop: A digitally controlled oscillator device includes a programming input, a selection input and an oscillator core with a first capacitive element which is frequency determining and programmable. The first capacitive element is coupled to the programming input that receives a first data word by which an oscillating frequency of the... Agent: Eschweiler & Associates, LLC National City Bank Building

20070222527 - Frequency tuning circuit, use of the tuning circuit and method for frequency tuning: A frequency tuning circuit includes a connection for coupling to a signal tap of an element which has a resonant frequency. The tuning circuit contains a controllable-capacitance capacitance array for tuning of a signal frequency of the element. The capacitance array has a multiplicity of capacitances which can be connected... Agent: Eschweiler & Associates, LLC National City Bank Building

20070222529 - Frequency calibration for a monolithic clock generator and timing/frequency reference: Exemplary embodiments of the invention provide a system, method and apparatus for frequency calibration of a free-running, reference harmonic oscillator. An exemplary system comprises the harmonic oscillator, a frequency divider, a comparator, and a reactance modulator. The reference harmonic oscillator includes a plurality of switchable reactance modules controlled by corresponding... Agent: Gamburd Law Group LLC

20070222528 - Multi-terminal harmonic oscillator integrated circuit with frequency calibration and frequency configuration: Exemplary embodiments of the invention provide a reference harmonic oscillator integrated circuit having three or more terminals, with systems and methods for calibrating the harmonic oscillator to a selected first frequency using a limited number of terminals. An exemplary apparatus comprises: a reference harmonic oscillator, a first terminal to receive... Agent: Gamburd Law Group LLC

20070222530 - Hybrid current-starved phase-interpolation circuit for voltage-controlled devices: A hybrid circuit includes a current-starved voltage-controlled circuit configured to adjust a first type of signal difference, and a phase-interpolated voltage controlled circuit configured to adjust a second type of signal difference. The current-starved circuit and the phase-interpolated circuit cooperate to provide improved operational performance of the hybrid circuit.... Agent: Keusey, Tutunjian & Bitetto, P.C.

20070222531 - Oscillator circuit, semiconductor device and semiconductor memory device provided with the oscillator circuit, and control method of the oscillator circuit: There is provided an oscillator circuit capable of obtaining stable frequency by avoiding output having unstable frequency that is likely to occur to an operation/stop-control-feasible type oscillator circuit when oscillation begins. In such an oscillator circuit, an oscillation permitting signal (EN) sets an oscillator section in oscillation-operable state, whereby a... Agent: Arent Fox PLLC

20070222532 - Temperature-compensated crystal oscillator: e

20070216489 - Systems and methods for suppressing feedback and reference noise in a phase lock loop circuit: Various systems and methods for clock management. As one example, a system for clock management is disclosed that includes a controllable oscillator, an oscillation control source, and a sample and hold circuit. The sample and hold circuit is disposed between the oscillation control source and the controllable oscillator, and is... Agent: Texas Instruments Incorporated

20070216487 - Adjusting frequency device of built-in oscillator for usb interface and method thereof: An adjusting frequency device of built-in oscillator for USB interface and a method thereof are described. It is Auto detect the error of bit-rate between the USB host and the USB device, and produce tiny counting time for clocking the clock error between the USB host and the USB device... Agent: Rosenberg, Klein & Lee

20070216488 - Spread spectrum modulation of a clock signal for reduction of electromagnetic interference: A spread spectrum frequency modulated oscillator circuit usable as a clock comprises a reference component such as a resistor, a voltage controlled oscillator and a first circuit coupled to the reference component and voltage controlled oscillator and configured to supply a first control signal to the oscillator to cause the... Agent: Mcdermott Will & Emery LLP

20070216490 - Method for fabricating quartz-based nanoresonators: A method for fabricating a quartz nanoresonator which can be integrated on a substrate, along with other electronics is disclosed. In this method a quartz substrate is bonded to a base substrate. The quartz substrate is metallized so that a bias voltage is applied to the resonator, thereby causing the... Agent: Ladas & Parry

20070216491 - Self-oscillating power circuit: The invention relates to a self-oscillating circuit comprising comparator means (CM) comprising at least one input means (IM) and at least one output means (OM), at least one of said at least one output means (OM) is coupled to at least one of said at least one input means (IM)... Agent: Cantor Colburn, LLP

20070205830 - Semiconductor integrated circuit device: A semiconductor integrated circuit device is disclosed that includes a signal processing unit having a nonvolatile memory and a detection unit; plural oscillation sources outputting plural oscillation signals; a selection control unit that selects one of the oscillation signals output by the oscillation sources according to a selection signal, and... Agent: Ladas & Parry

20070205833 - Adaptive cycle-slipped detector for unlock detection in phase-locked loop applications: An adaptive cycle-slipped detector (“ACSD”) for use in a Phase-Locked Loop (“PLL”) circuit. The ACSD may include a phase comparator, a phase shifter in signal communication with the phase comparator, and a cycle-slipped detector (“CSD”) in signal communication with the phase shifter.... Agent: Agilent Technologies Inc.

20070205831 - Phase modulating apparatus, communication device, mobile wireless unit, and phase modulating method: A multimode-based phase modulating apparatus capable of reducing the degradation of modulation precision and suppressing the unnecessary power consumption. The phase modulating apparatus has a switch (9) for switching the modulation modes of a PLL circuit (15) between a single-point modulation and a double-point modulation. In a case of a... Agent: Stevens, Davis, Miller & Mosher, LLP

20070205832 - 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

20070205835 - Robust locking/tuning in a multi-rate, multi-range phase locked loop: Systems and methods for tuning a phase locked loop (PLL) having a segmented voltage controlled oscillator (VCO) to an input frequency are provided. The PLL is reset and its VCO is coarse tuned until the input frequency is within a first predetermined threshold of the VCO center frequency. The input... Agent: Patent Group 2n Jones Day

20070205834 - Systems and methods for drift compensation in a control circuit: Various systems and methods for drift compensation are disclosed. As one example, a system for compensating drift in a control circuit is disclosed that includes at least two control signals. One of the control signals is provided by a circuit that is susceptible to drift. This control signal is provided... Agent: Texas Instruments Incorporated

20070205836 - Phase locking on aliased frequencies: A phase-locked loop (200) includes a sampler (202), a phase detector (210), a loop filter (212), and a VCO (214). The loop achieves frequency multiplication without the need for a divider in the loop's feedback path. The VCO (214) is operated above the Nyquist rate of the sampler, causing the... Agent: Law Office Of Bruce D. Rubenstein

20070205837 - Monolithic clock generator and timing/frequency reference: In various embodiments, the invention provides a clock generator and/or a timing and frequency reference, with multiple operating modes, such power conservation, clock, reference, and pulsed modes. The various apparatus embodiments include a resonator adapted to provide a first signal having a resonant frequency; an amplifier; a temperature compensator adapted... Agent: Gamburd Law Group LLC

20070205838 - Oscillator coupling system: An oscillator coupling system includes a plurality of oscillating members and a plurality of delay members connecting at least two of the oscillating members. Between the delay members is a specific phase or time delay relationship such that characteristics of phase or frequency noise suppression correlation of the two oscillating... Agent: Shoemaker And Mattare, Ltd

20070205839 - Method for fabricating quartz-based nanoresonators: A method for fabricating a quartz nanoresonator which can be integrated on a substrate, along with other electronics is disclosed. In this method a quartz substrate is bonded to a base substrate. The quartz substrate is metallized so that a bias voltage is applied to the resonator, thereby causing the... Agent: Ladas & Parry

20070205840 - Automatic page detector: The present invention discloses an automatic page detector, to determine which page of a book is open. The automatic page detector uses a magnet and an inductor as a sensor. In the invention, there is a magnet at each page of the book and the locations of the magnets for... Agent: Perkins Coie LLP

20070205841 - Voltage-controlled current source and variable-gain amplifier: A voltage-controlled current source includes a current source having temperature dependency, a voltage source having process dependency, a first signal conversion circuit which generates second voltage having temperature dependency and process dependency by use of current of the current source and first voltage of the voltage source, a second signal... Agent: Amin, Turocy & Calvin, LLP

20070205842 - Transconductance and current modulation for resonant frequency control and selection: In various embodiments, the invention provides a frequency controller and a temperature compensator for frequency control and selection in a clock generator and/or a timing and frequency reference. The various apparatus embodiments include a resonator adapted to provide a first signal having a resonant frequency; an amplifier; a temperature compensator... Agent: Gamburd Law Group LLC