Oscillators inventions 06/09

20090160564 - Enhanced all digital phase-locked loop and oscillation signal generation method thereof: An All Digital PLL (ADPLL) and oscillation signal generation method using the ADPLL is provided for generating a spur-free oscillation signal by improving the frequency resolution of the ADPLL. An all digital phase-locked loop of the present invention includes a digitally controlled oscillator for generating an oscillation signal having a... Agent: Christie, Parker & Hale, LLP

20090160565 - Semiconductor integrated circuit: The semiconductor integrated circuit incorporates a PLL circuit including a phase-frequency comparator 1, first and second charge pumps 2 and 3, a loop filter 4, a voltage-control oscillator 5 and a divider 6. The operation mode of the PLL circuit includes a standby state where locking is stopped, a lock... Agent: Miles & Stockbridge PC

20090160566 - Low voltage logen: Low voltage LOGEN. LOGEN is a local oscillator generator. Two separately implemented dividers allow for relatively lower power dissipation while supporting multiple modes of operation within the communication device. Each of these two or more dividers has different phase noise characteristics. These at least two separately implemented dividers also allows... Agent: Garlick Harrison & Markison

20090160560 - Phase locked loop and method for controlling the same: Phase locked loop and method for controlling the same includes a phase/frequency detector configured to detect a phase difference between an input clock and a feedback clock to generate an up signal or a down signal depending on the detected phase difference, a charge pump configured to variably control a... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090160561 - Surface-mount type crystal oscillator: The surface-mount type crystal oscillator includes a container body made of laminated ceramics, having a flat bottom wall layer, a frame wall defining a recess and a step portion formed at an inner wall of the recess, a crystal blank fixed to the step portion, an IC chip fixed to... Agent: Cantor Colburn, LLP

20090160562 - Oscillating device: The present invention provides an oscillating device. The oscillating device includes: a voltage regulating module, a current generating module, and an oscillating module. The voltage regulating module is utilized for generating a control voltage at an output terminal, and the voltage regulating module includes: a first operational amplifier, a first... Agent: North America Intellectual Property Corporation

20090160563 - Surface-mount type crystal oscillator: A surface-mount type crystal oscillator includes a container body with a recess, a first holding terminal and a second holding terminal provided in the recess, a crystal blank secured to the first and second holding terminals, and an IC chip including a first terminal and a second terminal on respective... Agent: Knobbe Martens Olson & Bear LLP

20090160568 - Circuit and method for a wireless accessory of a moblie device: The invention relates to a circuit and method for a wireless accessory of a portable computer. The circuit comprises an oscillator circuit (10), a control circuit (20) connected to the oscillator circuit, and a quenching circuit (30) connected to the oscillator circuit. According to the invention, the oscillator circuit (10)... Agent: Birch Stewart Kolasch & Birch

20090160567 - Oscillator circuit with acoustic single-port surface wave resonators: The invention refers to the electrical engineering/electronics field and relates to an oscillator circuit consisting of a combination of two frequency-determining elements and one active electronic circuit, wherein the frequency-determining elements are designed as single-port surface wave resonators with interdigital converters. According to the invention, the two single-port surface wave... Agent: Jordan And Hamburg LLP

20090160569 - Systems and methods for compensating for variations of the output of a real-time clock: Method and systems are provided for adjusting real-time clocks to compensate for frequency offset, temperature effects, and/or aging effects.... Agent: VistaIPLaw Group LLP

20090160570 - Clock signal generator: The present invention provides a clock signal generator capable of reducing current consumption and stably outputting a clock signal early. When it is discriminated that the amplitude of an amplification oscillation signal obtained by amplifying an oscillation signal produced from a crystal oscillator according to a constant current value has... Agent: Studebaker & Brackett PC

20090153252 - Multi-band voltage controlled oscillator controlling module, phase locked loop utilizing which and related method thereof: A multi-band VCO module includes a multi-band VCO and a controlling module. The multi-band VCO is for selecting a specific band from a plurality of bands according to a band selecting signal, and for outputting an oscillating signal according to a predetermined voltage and the specific band. The controlling module,... Agent: North America Intellectual Property Corporation

20090153253 - System and method for reducing lock time in a phase-locked loop: Increasing loop gain is a common practice for reducing lock time of phase locked loops. Very high loop gains, however, often result in increasing the lock time or causing loop instability. For very high loop gains, delaying the feedback clock signal along the feedback path of a phase locked loop... Agent: Dorsey & Whitney LLP Intellectual Property Department

20090153255 - All digital phase lock loop and method for controlling phase lock loop: An all digital phase lock loop is disclosed, including a digitally controlled oscillator, a phase detector, and a loop filter. The digitally controlled oscillator is controlled by an oscillator tuning word to generate a variable signal. The oscillator tuning word includes a first tuning word and a second tuning word,... Agent: Lowe Hauptman Ham & Berner, LLP

20090153254 - Phase locked loop circuit performing two point modulation and gain calibration method thereof: A PLL circuit for two point modulation includes a first loop filter, a second loop filter, a plurality of switching devices, and a calibration module. The first loop filter filters an output voltage of a charge pump during a gain calibration operation. The second loop filter filters the output voltage... Agent: F. Chau & Associates, LLC

20090153256 - Frequency generator: There is provided a feedback circuit including: an oscillator generating an oscillation frequency signal; a mixer unit having an input terminal, a feedback terminal, and an output terminal and outputting a frequency signal through the output terminal, the frequency signal obtained by adding or subtracting frequency of a feedback signal,... Agent: Lowe Hauptman Ham & Berner, LLP

20090153257 - Piezoelectric oscillator and method for manufacturing the same: A piezoelectric oscillator includes: a piezoelectric resonator including a container, the container containing a piezoelectric resonator element: and a semiconductor device including an oscillation circuit for vibrating the piezoelectric resonator. The semiconductor device is bonded to a surface of the container. The container has an external coupling terminal and a... Agent: Oliff & Berridge, PLC

20090153258 - Mems resonator array structure and method of operating and using same: Each one of resonators arranged in an N×M MEMS array structure includes substantially straight elongated beam sections connected by curved/rounded sections and is mechanically coupled to at least one adjacent resonator of the array via a coupling section, each elongated beam section connected to another elongated beam section at a... Agent: Kenyon & Kenyon LLP

20090153259 - Digitally controlled oscillator (dco): A digitally controlled oscillator (DCO) includes a current generator which generates an electric current having a magnitude corresponding to an input signal, and a digitally controlled oscillating unit which generates an oscillating frequency based on an inductance which varies according to the magnitude of the electric current generated by the... Agent: Mcneely Bodendorf LLP

20090146747 - Novel method of frequency synthesis for fast switching: A digital frequency synthesizer can be implemented with single source design, a multiplexer design, a fractional divider design, or a frequency multiplier and frequency divider design. Implementations can utilize a controller dithering circuit or a delta-sigma modulator. The frequency synthesizer can be implemented in a CMOS structure and can utilize... Agent: Foley & Lardner LLP

20090146742 - Pll apparatus: As a concrete means for solving the problem, as a result of monitoring the signal level of the external reference frequency signal, when its signal level falls within a set range, data regarding a phase difference created by a phase difference data creating means is used for the PLL control,... Agent: Jordan And Hamburg LLP

20090146743 - Systems and methods for pll linearity measurement, pll output duty cycle measurement and duty cycle correction: Systems and methods for enabling the determination of voltage controlled oscillator (VCO) linearity, duty cycle determination and duty cycle correction in phase locked loop circuits (PLL's.) One embodiment comprises a method including the steps of determining the frequency response of a PLL's VCO as a function of duty cycle, applying... Agent: Law Offices Of Mark L. Berrier

20090146744 - System and method of calibrating real time clock utilizing average calibration: A system for real time clock (RTC) calibration includes: a timer counter; a clock generator; and a clock calibration unit coupled between the clock generator and the timer counter. The clock calibration unit receives calibration parameters comprising an average calibration value, a remainder calibration value and a calibration period, counts... Agent: North America Intellectual Property Corporation

20090146745 - Noise reducing dielectric resonator oscillator: Systems, devices, and methods are provided for reducing noise in communication systems. An example resonator system comprises: a housing comprising a top portion and a floor portion, a dielectric resonator positioned with the housing, a substrate, and a stripline transmission line adjacent the substrate. In this exemplary embodiment, the stripline... Agent: Snell & Wilmer L.L.P. (main)

20090146746 - Self-calibrating temperature-compensated oscillator: A self-calibrating temperature compensated oscillator includes a monolithic structure having a first resonator, a second resonator, and a heating element to heat the first and second resonators. The temperature coefficient of the second resonator is substantially greater than the temperature coefficient of the first resonator. A first oscillator circuit operates... Agent: Kathy Manke Avago Technologies Limited

20090146748 - Amplitude controller for a clock, frequency reference, and other reference signal generator: Exemplary embodiments of the invention provide a reference signal generator, system and method. An exemplary apparatus to generate a harmonic reference signal includes a reference resonator, such as an LC-tank, and an amplitude controller. The reference resonator generates a first reference signal having a resonant frequency, and the amplitude controller... Agent: Gamburd Law Group LLC

20090146749 - Low-voltage oscillator with capacitor-ratio selectable duty cycle and single-input sub-threshold-conducting comparators to s-r latch: An oscillator operates at a very low voltage yet has a duty cycle that is set by a ratio of capacitors that are charged and discharged. Sub-threshold p-channel transistors conduct sub-threshold currents below the normal threshold voltage, and drive set and reset inputs of a set-reset S-R latch. The S-R... Agent: Stuart T Auvinen

20090146750 - Common mode controller for a clock, frequency reference, and other reference signal generator: Exemplary embodiments of the invention provide a reference signal generator, system and method. An exemplary apparatus to generate a harmonic reference signal includes a reference resonator, such as an LC-tank, and a common mode controller. The reference resonator generates a first reference signal having a resonant frequency, and the common... Agent: Gamburd Law Group LLC

20090146751 - Clock, frequency reference, and other reference signal generator: Exemplary embodiments of the invention provide a reference signal generator, system and method. An exemplary apparatus to generate a harmonic reference signal includes a reference resonator, such as an LC-tank, and a frequency controller. The reference resonator generates a first reference signal having a resonant frequency, and the frequency controller... Agent: Gamburd Law Group LLC

20090146752 - Clock, frequency reference, and other reference signal generator with a controlled quality factor: Exemplary embodiments of the invention provide a reference signal generator having a controlled quality (“Q”) factor. An exemplary apparatus to generate a harmonic reference signal includes a reference resonator, such as an LC-tank, which generates a first reference signal having a resonant frequency, and a plurality of reactance modules couplable... Agent: Gamburd Law Group LLC

20090146753 - Oscillator voltage source circuits: An oscillator voltage source circuit is provided comprising a multiplexer, a plurality of transmission gates, a plurality of resistors, a voltage source circuit, and an output circuit. The multiplexer inputs a digital signal. The transmission gates is individually coupled to the multiplexer and receives the digital signal, wherein the plurality... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20090140816 - Synthesizer characterization in real time: A frequency synthesizer includes a phase locked loop (PLL) for generating a desired frequency. The PLL includes two loop filters. A characterization circuit is included, which is configured to receive a digital word for characterizing the PLL and provide a pre-charge value for pre-charging one of the loop filters to... Agent: Ratnerprestia

20090140817 - Transistor voltage-controlled oscillator and frequency sythesizer having the same: A transistor voltage-controlled oscillator (VCO) and a frequency synthesizer having the transistor VCO are provided. The frequency synthesizer adopts a divide-by-five injection-locked frequency divider, which includes a five-stage inverter ring oscillating frequency dividing circuit for reducing the operating frequency of the oscillating signal from the VCO, thus decreasing power consumption... Agent: Pearne & Gordon LLP

20090140818 - Phase-locked loop circuit and data reproduction apparatus: This invention relates to a phase-locked loop circuit and a data reproduction apparatus, which can reduce a processing time that is required for initial adjustment in the data reproduction apparatus. In a digital data reproduction apparatus having two control functions, i.e., phase and duty adjustments for binarized data, the phase... Agent: Marjama Muldoon Blasiak & Sullivan LLP

20090140819 - Power monitoring device and methods thereof: To determine performance degradation at functional module in a normal power state due to a power control device, voltages are applied to oscillators at a power diagnostic module. A first voltage is a supply voltage for the data processing device, and a second voltage is a supply voltage applied at... Agent: Larson Newman Abel & Polansky, LLP

20090140820 - Ring oscillator with constant gain: This disclosure relates to delay cells in a ring oscillator that include sub-cells having a gain that is a function of a variable control signal and sub-cells with a gain that is set by a fixed control signal.... Agent: Lee & Hayes, PLLC