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Oscillators June invention type 06/10

20100156542 - Low voltage frequency synthesizer using boosting method for power supply voltage of charge pump: Provided is a low voltage frequency synthesizer using a boosting method for a power supply voltage of a charge pump. The low voltage frequency synthesizer includes a phase/frequency detector (PFD) that receives and compares a reference frequency and a feedback frequency to output a comparison signal, a charge pump that... Agent: Ampacc Law Group

20100156550 - Adjustable capacitor, digitally controlled oscillator, and all-digital phase locked loop: An adjustable capacitor is provided including a capacitor unit including a plurality of capacitor groups aligned in a matrix format and a switch unit to adjust capacitance by connecting the plurality of capacitor groups in parallel according to a selection signal of a column and row of the matrix. Accordingly,... Agent: Sughrue Mion, PLLC

20100156543 - Matrix structure oscillator: An oscillator having a plurality of operatively coupled ring oscillators arranged in hyper-matrix architecture. The operatively coupled ring oscillators are either identical or non-identical and are coupled through a common inverter or tail current transistors. Due to the arrangement of the ring oscillators in a hyper-matrix structure, the ring oscillators... Agent: Seed Intellectual Property Law Group PLLC

20100156544 - Ring oscillator having wide frequency range: Provided is a ring oscillator having an extended range of oscillation frequency by varactors coupled to delay cells even in a simple structure. The wide frequency range results from simply varying an oscillation frequency by control signals applied to the varactors. Since additional switches connected to the delay cells contribute... Agent: Ampacc Law Group

20100156545 - System and method for use of a switched mode tcxo for receiver applications: Systems and methods are disclosed herein for using a switched mode TCXO or VC-TCXO in a coherent receiver application where the switched mode TCXO or VC-TCXO may operate either in an active compensation mode to compensate for temperature induced frequency error or in a second fixed compensation mode where the... Agent: Haynes And Boone, LLPIPSection

20100156546 - Surface mount crystal oscillator: There is provided a surface mount oscillator of a junction type in which the size of an IC chip is increased while maintaining high performance thereof, and the outer dimension of the oscillator in plan view are small. In a surface mount crystal oscillator which: a surface of an IC... Agent: Edwards Angell Palmer & Dodge LLP

20100156547 - Method for suppressing light shift in optical pumping systems: The present invention relates to a method and system to suppress or eliminate light shift in an optical pumping system, such as an atomic clock. The method uses modulation of a radiation source, such as a radio frequency or microwave source, to simultaneously lock the frequency of the radiation source... Agent: Diane Dunn Mckay, Esq. Mathews, Shepherd, Mckay & Bruneou, P.A.

20100156548 - High-frequency colpitts circuit: A high-frequency Colpitts circuit having a feedback transistor Q2 in addition to an oscillation transistor Q1 is provided, wherein a collector of the transistor Q1 is connected to a base of the transistor Q2, a supply voltage is applied to a collector of the transistor Q2 through a resistance R5... Agent: Jacobson Holman PLLC

20100156549 - Voltage controlled oscillator: A voltage controlled oscillator includes a loop-shaped transmission line, an active circuit connected to a signal line, and a variable capacitor block connected to the signal line and having a plurality of variable capacitor units. Each variable capacitor unit includes a variable capacitor element, a control terminal for applying a... Agent: Mcdermott Will & Emery LLP

20100148881 - Digital calibration techniques for segmented capacitor arrays: An apparatus includes phase detection circuitry that generates control signals in response to an input clock signal and a feedback clock signal. The apparatus also includes a clock signal generation circuit that includes fine and coarse capacitors. The clock signal generation circuit changes a capacitance of the capacitors that are... Agent: Steven J. Cahill/ Altera Corp.

20100148882 - Variable inductance circuitry for frequency control of a voltage countrolled oscillator: An electronic device (2) is made from a first substrate (22) with device circuitry (32) including an inductor (42) and a second substrate (24) with inductance adjustment circuitry (60) including a number of other inductors (62). The substrates (22, 24) are assembled together to be opposite one another. The other... Agent: Nxp, B.v. Nxp Intellectual Property & Licensing

20100148879 - Atomic frequency acquiring apparatus and atomic clock: An atomic frequency acquisition apparatus includes: a cell enclosing atomic gas therein; a laser light source that oscillates a laser light that enters the cell and excites the atomic gas; and a photodetecting section that detects the laser light that has passed through the cell, wherein the cell has at... Agent: Harness, Dickey & Pierce, P.L.C

20100148880 - Method and system for forming resonators over cmos: In accordance with one embodiment of the present disclosure, a semiconductor substrate includes complementary metal-oxide-semiconductor (CMOS) circuitry disposed outwardly from the semiconductor substrate. An electrode is disposed outwardly from the CMOS circuitry. The electrode is electrically coupled to the CMOS circuitry. A resonator is disposed outwardly from the electrode. The... Agent: Texas Instruments Incorporated

20100141346 - Phase-locked loop with start-up circuit: A circuit includes a voltage-controlled oscillator (VCO), which includes a voltage input node having an input voltage; and a start-up circuit. The start-up circuit includes a first current path and a second current path. The first current path has a first current and is configured so that the first current... Agent: Slater & Matsil, L.L.P.

20100141347 - Band selecting method applied to voltage controlled oscillator of phase locked loop circuit and associated apparatus: A band selecting method applied to a voltage controlled oscillator (VCO) of a phase locked loop (PLL) and an associated method is provided. The band selecting method generates an open-loop control voltage according to a temperature signal; inputting the open-loop control voltage into the VCO; switching sequentially between a plurality... Agent: Wpat, PC Intellectual Property Attorneys

20100141348 - Low-power relaxation oscillator and rfid tag using the same: There is provided a low-power relaxation oscillator. The low-power relaxation oscillator may include: a constant current generation unit generating a current having a predetermined magnitude; a current varying unit controlling the current generated from the constant current generation unit according to a clock control signal to output the controlled current;... Agent: Ampacc Law Group

20100134191 - Frequency-locked clock generator: A frequency-locked clock generator includes a voltage-controlled oscillator (VCO), a frequency-to-current converter, a reference current source and a gain stage. The VCO generates an output signal. The frequency-to-current converter generates a converter current proportional to a frequency of the output signal. The reference current source generates a reference current. The... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20100134192 - Frequency calibration loop circuit: A frequency calibration loop circuit having a pre-set frequency channel word (FCW) command value, a bit inputted to obtain a target frequency in an oscillator and a pre-set minimum division ratio n (n is a constant) of a programmable divider, includes: an oscillator adjusting a oscillation frequency according to control... Agent: Ampacc Law Group

20100134194 - Surface acoustic wave driving circuit and oscillator therefor: A driving circuit of a surface wave resonator (X1) is described; the resonator comprises a static capacitor (Co) and the driving circuit is adapted to supply a voltage (Vx) to the resonator. The driving circuit comprises reactive means (L3) adapted to resonate in combination with said static capacitor (Co) of... Agent: Jacobson Holman PLLC

20100134193 - Oscillation circuit: An oscillation circuit according to the present invention comprises a solid-state oscillator, an amplifier for feedback-controlling the solid-state oscillator, and ESD protecting circuits respectively connected to the input and output sides of the amplifier, wherein the ESD protecting circuit on the input side of the amplifier comprises an ESD protecting... Agent: Mcdermott Will & Emery LLP

20100134195 - Capacitor having variable capacitance and digitally controlled oscillator including the same: There is provided a capacitor having variable capacitance, which forms different capacitances according to a control signal by applying a switch to a metal-oxide-metal (MOM) structure plate capacitor using a CMOS process. The capacitor includes a stack structure including a plurality of metal layers including a first metal layer, and... Agent: Ampacc Law Group

20100134196 - Spin-valve or tunnel-junction radio-frequency oscillator: This radio-frequency oscillator includes a magnetoresistive device in which an electric current is able to flow. The magnetoresistive device includes a first magnetic layer, known as a “trapped layer”, whereof the magnetization is of fixed direction. The magnetoresistive device further includes a second magnetic layer known as a “free layer”... Agent: Marjama Muldoon Blasiak & Sullivan LLP

20100134197 - Oscillator having feedback path which is capable of supplying reduced voltage potential to oscillation circuit: An oscillator creates a reference voltage based on a pulse signal corresponding to an oscillation output of a crystal oscillation circuit and controls a supply voltage to the crystal oscillation circuit according to the reference voltage. A control signal creating circuit creates a control signal based on the pulse signal... Agent: Mcginn Intellectual Property Law Group, PLLC