Oscillators inventions 01/09

20090027131 - Ring oscillators for cmos transistor beta ratio monitoring: This invention discloses a CMOS ring oscillator which comprises an odd number of inverting modules serially connected with each other with an output of a last stage inverting module coupled to an input of a first stage inverting module, each of the plurality of inverting modules always outputting a logic... Agent: K & L Gates LLP

20090027132 - Varactor device with reduced temperature dependence: The invention discloses a varactor device (100) for improved temperature stability, comprising a first varactor (160) connected to a decoupling network (150). The device further comprises a voltage stabilizer (110), said stabilizer comprising a capacitor (140) and a temperature dependent capacitor (130), and in that the stabilizer comprises means for... Agent: Ericsson Inc.

20090027133 - Crystal oscillator with variable-gain and variable-output-impedance inverter system: A crystal oscillator with variable gain and variable output impedance inverter system includes an inverter, a variable impedance feedback circuit, connected between the output and input of the inverter, a crystal oscillator system, having a crystal with first and second electrodes connected across the input and output of the inverter;... Agent: Iandiorio & Teska

20090021310 - System and method for phase-locked loop (pll) for high-speed memory interface (hsmi): A phase-locked loop (PLL) to provide clock generation for high-speed memory interface is presented as the innovate PLL (IPLL). The IPLL architecture is able to tolerate external long loop delay without deteriorating jitter performance. The IPLL comprises in part a common mode feedback circuit with a current mode approach, so... Agent: Sawyer Law Group LLP

20090021312 - Pll circuit: It has been difficult that conventional PLL circuits have a suppression characteristic of suppressing the phase noise which is free of variation due to temperature and individual difference and stable in a wide frequency band. The present invention provides a PLL circuit which can absorb variation of phase noise characteristic... Agent: Jacobson Holman Pllc

20090021311 - Vco pre-compensation: A VCO device is described that has pre-compensation. Digitally switchable compensation capacitors are selectively activated to adjust operation of the VCO to mitigate undesirable operational effects. In some example embodiments, the digitally switchable compensation capacitors of the VCO are adjusted to compensate for the effects of activating (from a quiescent... Agent: Lee & Hayes, Pllc

20090021313 - Voltage controlled oscillator capable of operating in a wide frequency range: A voltage controlled oscillator includes a first NMOS transistor having a base terminal configured to receive an input signal INP and a drain terminal connected to an output node OUTN, a second NMOS transistor having a base terminal configured to receive an input signal INN and a drain terminal connected... Agent: Xin Wen

20090021314 - Structure for a phase locked loop with adjustable voltage based on temperature: A design structure for an apparatus for utilizing a single set of one or more thermal sensors, e.g., thermal diodes, provided on the integrated circuit device, chip, etc., to control the operation of the integrated circuit device, associated cooling system, and high-frequency PLLs, is provided. By utilizing a single set... Agent: Ibm Corp. (wip) C/o Walder Intellectual Property Law, P.c.

20090021315 - Surface-mount crystal oscillator: In a surface-mount crystal oscillator, an IC chip having an IC terminal at each of at least four corner portions is housed in a substantially rectangular recess. Circuit terminals to which the IC terminals are fixed via bumps are provided on an inner bottom surface of the recess, and external... Agent: Knobbe Martens Olson & Bear LLP

20090021316 - Surface-mount type crystal oscillator: A surface-mount type crystal oscillator has: a container body having a bottom wall and a frame wall having an opening and provided on one principal surface of the bottom wall; a quartz crystal blank hermetically encapsulated in a recess of the container body, which is formed by the opening of... Agent: Knobbe Martens Olson & Bear LLP

20090021318 - 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 sensor plate and an inductor as a sensor. In the invention, there is a sensor plate at each page of the book and the locations of the... Agent: Perkins Coie LLP

20090021317 - Cmos cross-coupled differential voltage controlled oscillator: A CMOS cross-coupled differential voltage controlled oscillator is provided with a pair of oscillator outputs. The oscillator includes a current control unit, a first cross-coupled differential pair, an inductor unit, a capacitor unit, a second cross-coupled differential pair and a voltage controller. The current control unit is coupled between a... Agent: Bacon & Thomas, Pllc

20090015338 - Dividerless pll architecture: A phase-locked loop (PLL) achieves initial lock using a course fractional-N divider driving a binary phase detector. Once frequency lock is achieved, this divider may be turned off, while an adaptive phase detector takes over control of the PLL front end. The adaptive phase detector (APD) receives input directly from... Agent: Zagorin O'brien Graham LLP

20090015339 - Apparatus, method and computer program product for tracking information in an electric grid: An apparatus for rapidly tracking fundamental frequency information in the signal of an electric grid is a cross-coupled phase-lock loop filter (CCPLL) that includes the use of a phase-lock-loop (PLL) apparatus having a plurality individual filters, wherein an input for a first filter in the plurality of individual filters comprises... Agent: Cantor Colburn, LLP

20090015340 - Phase controlled oscillator circuit with input signal coupler: An oscillating signal in an oscillator is caused to phase shift toward the phase of an input signal coupled to the oscillating signal. The resonant frequency of the oscillator is about equal to an integer multiple of the frequency of the input signal. The input signal may be generated in... Agent: Hamilton, Brook, Smith & Reynolds, P.C.

20090015342 - Fast startup resonant element oscillator: A startup circuit 200 and method 700 is provided for quickly starting up a resonator based oscillator. Tunable oscillator 201 provides an impetus signal to oscillator 205 through capacitor 202. The impetus signal has a frequency that is an estimate of the resonant frequency of resonator 205. The circuit measures... Agent: The Mueller Law Office, P.C.

20090015341 - Piezoelectric oscillator: In order to remove external noise of the same phase, such as a power supply noise, on an crystal oscillator, one oscillation output has been conventionally obtained from one oscillation circuit, and by using a differential amplifier, the one oscillation output is turned into two oscillation outputs that are 180... Agent: Koda & Androlia

20090015343 - Voltage controlled oscillator (vco) with simultaneous switching of frequency band, oscillation core and varactor size: The invention relates to a voltage controlled oscillator for generating a variable frequency. The oscillator comprises an oscillator core and a transconductive portion for compensating current losses in the oscillator core. The oscillator core comprises an inductive portion with at least one inductive element and a capacitive portion whose capacitance... Agent: Mcdonnell Boehnen Hulbert & Berghoff LLP

20090009256 - Variable-frequency oscillator: There is provided a frequency-variable oscillator that varies, even when a frequency of an input signal is varied, a frequency of an oscillation signal according to the varied frequency of the input signal. A frequency-variable oscillator according to an aspect of the invention includes: a voltage-to-current converter circuit converting a... Agent: Lowe Hauptman Ham & Berner, LLP

20090009257 - Varactor trimming arrangement: Implementations are presented herein that relate to circuit arrangements that employ the use of a varactor.... Agent: Lee & Hayes, PLLC

20090002083 - Oscillation circuit, power supply circuit, display device, and electronic apparatus: An oscillation circuit, power supply circuit, display device using same, and electronic apparatus which can be built in a display panel without causing an increase of cost and do not need any adjustment work, each having a pulse generation portion 161 formed by an oscillator outputting rectangular wave signals having... Agent: Rader Fishman & Grauer PLLC

20090002079 - Continuous gain compensation and fast band selection in a multi-standard, multi-frequency synthesizer: A frequency synthesizer capable of high speed, low power, wideband operation including a method of gain compensation, and a method of fast voltage controlled oscillator (VCO) band calibration. In addition, the frequency synthesizer may include two or more switchable independent loop filters to facilitate wideband operation. Such a frequency synthesizer... Agent: Lowrie, Lando & Anastasi, LLP

20090002080 - Frequency divider and phase locked loop using the same: The invention relates to a frequency divider operated digitally and capable of satisfying the Zigbee standard, and a phase locked loop system using the same. The frequency divider includes a plurality of latches in a ring structure with an output of a latter end latch is connected to an input... Agent: Lowe Hauptman Ham & Berner, LLP

20090002088 - Digital controlled oscillator, frequency synthesizer, radio communication apparatus using the same, and control method for the same: The digital controlled oscillator includes a variable capacitance section having a first capacitor array of a plurality of first variable capacitors and a second capacitor array of a plurality of second variable capacitors, and generates a signal having an oscillation frequency corresponding to the capacitance value of the variable capacitance... Agent: Mcdermott Will & Emery LLP

20090002081 - Measurement apparatus for improving performance of standard cell library: Disclosed herein is a measurement apparatus for improving performances of standard cells in a standard cell library when verifying performance of the standard cell library through a ring oscillator among various test element groups (TEGs). A built-in circuit is used to measure and verify performance of the standard cell library... Agent: Sherr & Vaughn, PLLC

20090002082 - Multiphase signal generator: A signal generator for generating multiple phases includes a ring oscillator with at least one first adjustable delay stage and at least one second delay stage being serially arranged, wherein an output of the first delay stage is provided for delivering at least one first output phase and an output... Agent: Anne Vachon Dougherty

20090002084 - Oscillator: In an oscillator of the present invention, each of field-effect transistors (12) and (13) contained as amplifier elements is a buried-channel transistor including: a body region formed on a semiconductor substrate, a source region and a drain region formed on the body region and having a different conductivity type from... Agent: Mcdermott Will & Emery LLP

20090002085 - 4less-xtaless, capless, indless, dioless tsoc design of soc or 4free-xtalfree, capfree, indfree, diofree tsoc desigh of soc: 4Less-Xtaless, Capless, Indless, Dioless TSOC Design of SOC or 4Free-Xtafree, Capfree, Indfree, Diofree TSOC Design of SOC is the True System On Chip Design of Security Of Community. Xtaless is Xtaless Clock Generator generating the reference clock having the superior quality of crystal clock without the on-board external crystal. Capless... Agent: Min Ming Trang, Ph. D.

20090002086 - Film bulk acoustic resonator calibration: Film bulk acoustic resonators (FBARS) have resonant frequencies that vary with manufacturing variations, but tend to be matched when in proximity on an integrated circuit die. FBAR resonant frequency is determined using a fractional-N synthesizer and comparing phase/frequency of an output signal from the fractional-N synthesizer to a reference. The... Agent: Lemoine Patent Services, PLLC

20090002087 - Low-power fast-startup oscillator with digital feedback control: Embodiments of the present invention provide a system for controlling a startup time of an oscillator circuit. The system includes a variable current source coupled to the oscillator circuit, wherein a startup time of the oscillator circuit is proportional to a bias current input into the oscillator circuit from the... Agent: Pvf -- Synopsys, Inc C/o Park, Vaughan & Fleming LLP