258 85 http://www.patentstorm.us/ http://www.patentstorm.us/images/logo.gif http://www.patentstorm.us/rss/class/applications/rss-331.xml Recent patent applications filings in USPTO Class 331 Oscillators. Thu, 16 Feb 2012 15:00:01 patents@patentstorm.us en http://www.patentstorm.us/applications/20120040627/description.html

Application Number:  20120040627

Publication Date:  2012-02-16

Inventors:  Harada, Shingo; Fujiwara, Tetsuya

Disclosed herein is a phase-locked circuit including: a phase-locked section including a voltage controlled oscillator having a capacitance bank and changing oscillation frequency according to voltage information, the phase-locked section phase-locking an oscillating signal of the voltage controlled oscillator to a reference signal; and a calibration section having a voltage correcting function for supplying an appropriate calibration voltage to the voltage controlled oscillator in performing ...
]]> 20120040627 http://www.patentstorm.us/applications/20120039366/description.html

Application Number:  20120039366

Publication Date:  2012-02-16

Inventors:  Wood, John; Basit, Haris

Local oscillator circuitry for an antenna array is disclosed. The circuitry includes an array of rotary traveling wave oscillators which are arranged in a pattern over an area and coupled so as to make them coherent. This provides for a set of phase synchronous local oscillators distributed over a large area. The array also includes a plurality of phase shifters each of which is connected to one of the rotary oscillators to provide a phase shifted local oscillator for the array. The phase ...
]]> 20120039366 http://www.patentstorm.us/applications/20120039153/description.html

Application Number:  20120039153

Publication Date:  2012-02-16

Inventor:  KOBAYASHI, Takashi

A piezoelectric vibration piece that can ensure good drive level characteristics and a piezoelectric vibrator, oscillator, electronic device and radio-controlled timepiece in which the piezoelectric vibration piece is used are provided. The width of the base-end side of the grooves 5 is narrower than that of the tip side of the grooves 5. The base 4 includes: a mount section 4a on the outer surface of which mount electrodes 12, 13 are formed to mount ...
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Application Number:  20120038431

Publication Date:  2012-02-16

Inventors:  JAAKKOLA, Antti; PENSALA, Tuomas; KIIHAMÄKI, Jyrki

The invention relates to a microelectromechanical resonators and a method of manufacturing thereof. The resonator comprises at least two resonator elements made from semiconductor material, the resonator elements being arranged laterally with respect to each other as an array, at least one transducer element coupled to said resonator elements and capable of exciting a resonance mode to the resonator elements. According to the invention, said at least one transducer element is a piezoelectric ...
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Application Number:  20120038430

Publication Date:  2012-02-16

Inventors:  Kim, Kee-won; Lee, Sung-chul; Pi, Ung-hwan; Seo, Sun-ae; Kim, Kwang-seok

Oscillators and methods of operating the same, the oscillators include a pinned layer having a fixed magnetization direction, a first free layer over the pinned layer, and a second free layer over the first free layer. The oscillators are configured to generate a signal using precession of a magnetic moment of at least one of the first and second free ...
]]> 20120038430 http://www.patentstorm.us/applications/20120038429/description.html

Application Number:  20120038429

Publication Date:  2012-02-16

Inventors:  Haensch, Wilfried E.; Liu, Yong; Liu, Zihong

An oscillator circuit includes a field effect transistor (FET), the FET comprising a channel, source, drain, and gate, wherein at least the channel comprises graphene; an LC component connected to the FET, the LC component comprising at least one inductor and at least one capacitor; and a feedback loop connecting the FET source to the FET drain via the LC ...
]]> 20120038429 http://www.patentstorm.us/applications/20120038428/description.html

Application Number:  20120038428

Publication Date:  2012-02-16

Inventors:  Kim, Kee-won; Lee, Sung-chul; Pi, Ung-hwan; Kim, Kwang-seok; Kim, Ho-jung; Choi, Hyun-sik

Oscillators and a method of operating the same are provided, the oscillators include at least one oscillation device including a first magnetic layer having a magnetization direction that is variable, a second magnetic layer having a pinned magnetization direction, and a non-magnetic layer disposed between the first magnetic layer and the second magnetic layer. The oscillation device is configured to generate a signal having a set frequency. The oscillators further include a driving transistor ...
]]> 20120038428 http://www.patentstorm.us/applications/20120038427/description.html

Application Number:  20120038427

Publication Date:  2012-02-16

Inventors:  Siu, Stuart; Stoiber, Steven T.

In one embodiment, there is a method that can include utilizing a ring oscillator module to determine a process corner of an integrated circuit as fabricated that includes the ring oscillator module. The impedance of an output driver of the integrated circuit can be altered based on the process corner of the integrated circuit as ...
]]> 20120038427 http://www.patentstorm.us/applications/20120038426/description.html

Application Number:  20120038426

Publication Date:  2012-02-16

Inventors:  Maeda, Tatsuo; TAMURA, Masahisa

There is provided a PLL frequency synthesizer including a phase comparing unit, a current pulse signal generating unit, an converting unit which converts the current pulse signal from the current pulse signal generating unit into a voltage signal, an outputting unit which outputs a signal of an oscillation frequency matching the voltage signal from the converting unit, a divider which divides an output from the outputting unit by a division ratio matching a division ratio control signal to ...
]]> 20120038426 http://www.patentstorm.us/applications/20120038425/description.html

Application Number:  20120038425

Publication Date:  2012-02-16

Inventor:  Yamakawa, Junichiro

A resonance part of a voltage controlled oscillator (VCO) includes variable capacitance elements where an electrostatic capacitance changes in order to adjust a resonance frequency and an inductance element, and a transistor of grounded emitter type amplifies a frequency signal inputted from the resonance part to a base terminal. A feedback part includes capacitance elements for feedback, and feedbacks a frequency signal outputted from an emitter terminal of the transistor to the transistor via ...
]]> 20120038425 http://www.patentstorm.us/applications/20120038401/description.html

Application Number:  20120038401

Publication Date:  2012-02-16

Inventor:  Sun, Hongquan

A method for compensating an oscillation frequency, a device, and a phase locked loop (PLL) is applied in the LC oscillating loop, including: sending voltage control signals to one end of a variable capacitor of an LC oscillating loop to generate oscillating signals in the LC oscillating loop through the voltage control signals; obtaining variable bias voltage that reflects changes of external parameters; and sending the variable bias voltage to the other end of the variable capacitor to ...
]]> 20120038401 http://www.patentstorm.us/applications/20120032747/description.html

Application Number:  20120032747

Publication Date:  2012-02-09

Inventors:  Phan Le, Kim; Vermeeren, Petrus Antonius Thomas Marinus

A piezoresistive MEMS oscillator comprises a resonator body, first and second drive electrodes located adjacent the resonator body for providing an actuation signal; and at least a first sense electrode connected to a respective anchor point. The voltages at the electrodes are controlled and/or processed such that the feedthrough AC current from one drive electrode to the sense electrode is at least partially offset by the feedthrough AC current from the other drive electrode to the sense ...
]]> 20120032747 http://www.patentstorm.us/applications/20120032746/description.html

Application Number:  20120032746

Publication Date:  2012-02-09

Inventor:  Bao, Mingquan

An oscillator circuit (100, 200, 300, 10, 11) comprising a resonator (105) connected serially with a series to series feedback amplifier (110, 92), in which the series to series amplifier comprises a feedback network (210, 91) which has an impedance value which is below a certain first predefined limit and a phase value which increases with the operational frequency of the oscillator circuit with a rate which is above a second predefined limit. In one embodiment, the ...
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Application Number:  20120032745

Publication Date:  2012-02-09

Inventor:  Nedovic, Nikola

In one embodiment, a method includes generating, by a LCVCO, a first signal having a first phase based on a resonant frequency of a first LC tank; generating, by a second LCVCO, a second periodic signal having a second phase based on a resonant frequency of a second LC tank; determining a phase offset between the first LC tank and the second LC tank based on the first and second signals; generating a first output signal and a second output signal based on the determined phase offset; and ...
]]> 20120032745 http://www.patentstorm.us/applications/20120025923/description.html

Application Number:  20120025923

Publication Date:  2012-02-02

Inventor:  TAKIZAWA, Teruo

A vibrator element includes: a base having a mounting surface; a vibrating arm which is extended from the base and has a first surface and a second surface that faces the first surface and is positioned on the mounting surface side, and which performs flexural vibration in a direction normal to the first and second surfaces; and a laminated structure which is provided on at least one of the first and second surfaces of the vibrating arm, and which includes at least a first electrode, a second ...
]]> 20120025923 http://www.patentstorm.us/applications/20120025922/description.html

Application Number:  20120025922

Publication Date:  2012-02-02

Inventors:  INABA, Shogo; SATO, Akira

A micro-electro-mechanical-system resonator, includes: a substrate; a fixed electrode formed on the substrate; and a movable electrode, arranged facing the fixed electrode and driven by an electrostatic attracting force or an electrostatic repulsion force that acts on a gap between the fixed electrode and the movable electrode. An internal surface of a support beam of the movable electrode facing the fixed electrode has an inclined ...
]]> 20120025922 http://www.patentstorm.us/applications/20120025921/description.html

Application Number:  20120025921

Publication Date:  2012-02-02

Inventors:  Yang, Yu; Li, Xuechu; Xuan, Peiqi

A low noise VCO circuit for an LC VCO circuit comprising MOS varactors is disclosed. The LC VCO circuit usually comprises an LC tuning circuit coupled with a pair of cross-coupled transistors used as a negative impedance element. A pair of varactors is used to provide fine tuning by applying a control voltage to the varactor. Since the varactor is also coupled to the pair of cross-coupled transistor, the process variation and temperature change may affect the bias voltage coupled to the pair of ...
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Application Number:  20120025920

Publication Date:  2012-02-02

Inventors:  Kallfass, Ingmar; Weber, Rainer

An oscillator with adjustable oscillation frequency includes an active device showing a negative input resistance at a terminal, an oscillator circuit coupled to the terminal of the active device showing the negative input resistance, and an element with adjustable ohmic resistance by which the oscillation frequency of the oscillator is ...
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Application Number:  20120025919

Publication Date:  2012-02-02

Inventor:  Huynh, Steven

A phase locked loop is used to synchronize the switching frequency of a high frequency switching power converter to a clock signal. A switching power converter integrated circuit is a tile-based power management unit and includes an oscillator and multiple tiles of switching power converters. The oscillator generates a clock signal having a clock frequency. A first switching power converter includes a switch and a phase locked loop and switches at a first frequency. The switch has a gate that ...
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Application Number:  20120025918

Publication Date:  2012-02-02

Inventors:  Wang, Chi-Hsueh; Staszewski, Robert Bogdan

An exemplary calibration apparatus for calibrating timing mismatch of an edge rotator operating on multiple phases of an oscillator includes a capturing block arranged to capture phase error samples, and a calibrating block arranged to adjust timing of said edge rotator according to said phase error samples. An exemplary calibration method for calibrating timing mismatch of an edge rotator operating on multiple phases of an oscillator includes the following steps: capturing phase error samples, ...
]]> 20120025918 http://www.patentstorm.us/applications/20120025737/description.html

Application Number:  20120025737

Publication Date:  2012-02-02

Inventors:  KIKUCHI, Hiroki; YONEMARU, Masao; OKI, Takashi

A current mirror circuit duplicates an input current that flows through an input terminal, and outputs an output current via an output terminal. A first transistor, a second transistor, and a diode are sequentially arranged in series between a power supply terminal to which a fixed voltage is applied and an input terminal. A third transistor and a fourth transistor are sequentially arranged in series between the power supply terminal and the output terminal. The gate of the first transistor and ...
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Application Number:  20120019330

Publication Date:  2012-01-26

Inventors:  Aihara, Kazuyuki; Horio, Yoshihiko; Hamada, Takuya; Jinno, Kenya

There is provided a multi-screw chaotic oscillator circuit with simple configuration, that can use various multi-hysteresis VCCS characteristics and generate a variety of multi-screw attractors. The multi-screw chaotic oscillator circuit comprises: a linear two-port VCCS circuit 1 consisting of a set of linear VCCS circuits G₁ and G₂; a multi-hysteresis two-port VCCS circuit 2 consisting of a set of multi-hysteresis VCCS circuits MH₁ and MH_{2 ...
]]>} 20120019330 http://www.patentstorm.us/applications/20120019329/description.html

Application Number:  20120019329

Publication Date:  2012-01-26

Inventors:  Shen, Yi-Lun; Yeh, Wen-Chung

A frequency-jittering apparatuses includes an oscillator and a frequency control circuit. The oscillator generates a signal. When the magnitude of the signal exceeds a magnitude of a reference signal, the oscillator operates substantially in a first state; and when the magnitude of the signal is lower than the magnitude of the reference signal, the oscillator operates substantially in a second state different from the first one. The frequency control circuit varies the reference signal to ...
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Application Number:  20120019328

Publication Date:  2012-01-26

Inventors:  SHIBATA, Kenichi; UOZUMI, Toshiya

A high frequency signal processing device is capable of carrying out high-accuracy modulation by a PLL circuit. A digital loop is configured in addition to an analog loop having, for example, a phase frequency detector, a charge pump circuit, and a loop filter. A digital calibration circuit is provided which searches for the optimal code set to a capacitor bank upon frequency modulation. Upon the search for the optimal code, a calibration controller first sets a division ratio based on a center ...
]]> 20120019328 http://www.patentstorm.us/applications/20120019327/description.html

Application Number:  20120019327

Publication Date:  2012-01-26

Inventors:  Tsang, Randy; ROMANO, Luca

Aspects of the disclosure provide a phase-locked loop (PLL). The PLL includes a voltage-controlled oscillator (VCO), a detector module, and a ramp module. The VCO has a first capacitor unit and a second capacitor unit. The VCO is configured to generate an oscillating signal having a frequency based on a first capacitance of the first capacitor unit and a second capacitance of the second capacitor unit. The detector module is configured to generate a voltage signal as a function of the ...
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