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Patent # Description
US-8,049,584 Switching device
A switching device having a magnetic release includes a yoke having a U-shaped first section that includes a first limb having an opening in the form of a slot...
US-8,049,583 Acoustic wave filter comprising a reflector having an oblique slit
An acoustic wave filter includes a piezoelectric substrate, an IDT (interdigital transducer) formed on the piezoelectric substrate, and reflectors located at...
US-8,049,582 Transversal filter
The filter includes at least one acoustic track formed on a piezoelectric substrate. At least one SAW input transducer and at least one SAW output transducer...
US-8,049,581 Piezoelectric filter and method for manufacturing the same
A piezoelectric filter of the present invention is provided with first and second piezoelectric vibrators, each having a substrate, a lower load film formed on...
US-8,049,580 MEMS controlled oscillator
An array of micromechanical oscillators have different resonant frequencies based on their geometries. In one embodiment, a micromechanical oscillator has a...
US-8,049,579 Resonator having a stator coupled to three stator voltages
A resonator includes a translator, a stator, and a control circuit. The control circuit is configured to provide first and second translator voltages and first...
US-8,049,578 Air loaded stripline
Air loaded stripline assemblies and methods for providing same are disclosed. The air loaded stripline assembly includes circuit board layers interconnected to...
US-8,049,577 Elastic wave device, duplexer using the same, and communication apparatus using the duplexer
An elastic wave device includes resonators having a piezoelectric substrate, a resonation unit formed on the piezoelectric substrate, and reflectors formed on...
US-8,049,576 Method for pseudo-differential transmission using modal electrical variables
The invention relates to a method and a device for pseudo-differential transmission in interconnections used for sending a plurality of electrical signals. The...
US-8,049,575 Directional coupler with inductively-compensated sharpness of directivity
A directional coupler provides at least two coupled lines, at least three ports and at least one inductor. A high-frequency signal is transmitted from the first...
US-8,049,574 High power UHF single-pole multi-throw switch
A single pole multiple-throw switch for switching an RF signal to one of a plurality of outputs includes coupling the signal to a throw junction, said junction...
US-8,049,573 Bidirectional multiplexed RF isolator
An isolator provides bidirectional data transfer for a plurality of communications channels. First and second dies are located on first and second sides of a...
US-8,049,572 Oven-controlled crystal oscillator
An oven-controlled crystal oscillator includes a circuit board, a crystal unit surface-mounted on the circuit board, and a temperature control circuit that...
US-8,049,571 Frequency-jittering apparatuses, frequency-jittering methods and power management devices
A frequency-jittering apparatuses includes an oscillator and a frequency control circuit. The oscillator generates a signal. When the magnitude of the signal...
US-8,049,570 Coupled bi-stable microcircuit system for ultra-sensitive electrical and magnetic field sensing
An electrical/magnetic current sensing system includes a first collection mechanism configured to convert an electric field into surface charge, a second...
US-8,049,569 Circuit and method for improving the accuracy of a crystal-less oscillator having dual-frequency modes
A clock generation circuit is provided for improving the accuracy of a low power oscillator circuit contained therein. The clock generation circuit includes a...
US-8,049,568 Feedback-based linearization of voltage controlled oscillator
Embodiments of the present invention enable a feedback-based VCO linearization technique. Embodiments include a frequency locked loop formed by feeding back a...
US-8,049,567 Circuit for phase locked oscillators
A circuit comprising a DC current source and at least two spin torque oscillators, the at least two spin torque oscillators being electrically coupled to each...
US-8,049,566 Feedback LNA with resistor
A receiver includes a feedback low noise amplifier (LNA). The feedback LNA has an LNA gain and includes an LNA input configured to receive a signal from an...
US-8,049,565 Multi-mode high efficiency linear power amplifier
A power amplifier includes a plurality of amplification paths in which at least one amplification path is selectively enables and disabled, wherein each...
US-8,049,564 Distributed active transformer amplifier with differential power combiner
A power amplifier formed by a plurality of pairs of transistors, each pair including a first transistor and a second transistor having each a respective input...
US-8,049,563 Distributed circular geometry power amplifier architecture
The present invention discloses a distributed power amplifier topology and device that efficiently and economically enhances the power output of an RF signal to...
US-8,049,562 Amplifier with improved input resistance and controlled common mode
An amplifier includes a first pair of transistors (the first pair) that defines a first output, each transistor of the first pair having a gate coupled to a...
US-8,049,561 Class D amplifier
The invention refers to an amplifier (1) comprising a switchable capacitive divider (10) for dividing a supply voltage delivered to the amplifier (1), the...
US-8,049,560 Increasing the density of larger magnitude amplifier output samples for estimating a model of digital...
A digital pre-distortion system which can provide the flexibility to model the highly non-linear distortion associated with High Efficiency RF Power Amplifiers...
US-8,049,559 Semiconductor device, radio frequency circuit, and radio frequency power amplifier
A semiconductor device and a radio frequency circuit which are appropriate for multiband, multimode performance can be realized as a semiconductor device...
US-8,049,558 Switchable balanced amplifier
A switchable balanced amplifier having multiple, configurable independent input/output paths. Switching networks coupled to the input and/or output quadrature...
US-8,049,557 Self oscillating class D amplification device
An amplification device, comprising a device input receiving a device input signal, an amplifier unit comprising a zero crossing detector unit, an output filter...
US-8,049,556 Multiple circuit blocks with interblock control and power conservation
A mobile telephone is provided that includes a plurality of circuit blocks and adapted to cut off the supply of power source voltage to any one of the circuit...
US-8,049,555 Low leakage sampling switch
An electronic device includes a cascade of a plurality of transistors. Each transistor of the cascade receives an input voltage at a first terminal of its...
US-8,049,554 Integrated circuit
An integrated circuit includes a first internal voltage generating unit configured to receive an external power and to generate a first internal voltage, and a...
US-8,049,553 High-voltage CMOS charge pump
Provided is a high-voltage complementary metal-oxide semiconductor (CMOS) charge pump. The high-voltage CMOS charge pump includes a first Dickson charge pump...
US-8,049,552 Internal voltage generator of semiconductor device
An internal voltage generator of a semiconductor device includes a charge pumping unit for performing a charge pumping operation on the basis of the voltage...
US-8,049,551 Charge pump for switched capacitor circuits with slew-rate control of in-rush current
A ramp-up circuit for switched capacitor circuits with negative feedback to control the slew rate of in-rush current. Other embodiments are described and claimed.
US-8,049,550 Method for power reduction and a device having power reduction capabilities
A device that includes: (i) an evaluated circuit; (ii) a leakage current dependent oscillator configured to generate an oscillating signal that has an...
US-8,049,549 Delta phi generator with start-up circuit
A circuit comprises a delta phi generator, a startup circuit, and a level detector. The delta phi generator has a desirable operating state for developing a...
US-8,049,548 Digital synchronous circuit
A digital synchronous circuit includes a clock generator for generating a reference clock signal, a plurality of delays for delaying the reference clock signal...
US-8,049,547 Semiconductor integrated circuit and signal adjusting method
A semiconductor device includes a first signal generator that generates a plurality of second signals having a delay relative to a first signal and having...
US-8,049,546 Flip-flop, frequency divider and RF circuit having the same
A flip-flop, and a frequency divider and an RF circuit using the flip-flop. The frequency divider, which receives a first signal and generates a second signal...
US-8,049,545 Delay-locked loop circuit controlled by column strobe write latency
The DLL circuit includes a control circuit which controls bias currents of the unit delay circuits according to an externally input column address strobe...
US-8,049,544 Delay locked loop circuit
A delay locked loop circuit includes a phase comparison unit configured to compare a reference clock with a feedback clock and to output a phase comparison...
US-8,049,543 Delay locked loop, electronic device including the same, and method of operating the same
A delay locked loop controls a plurality of delay blocks included in a delay line and thus generate a plurality of clock signals which have a frequency obtained...
US-8,049,542 Phase controlling apparatus, phase-control printed board, and controlling method
In response to an input signal, in a first delay line, a delay amount is added to a phase of the input signal by each delay unit. In a DLL circuit, in response...
US-8,049,541 Charge pump for PLL/DLL
A charge pump for use in a Phase Locked Loop/Delay Locked Loop minimizes static phase error through the use of an operational amplifier. The operational...
US-8,049,540 Calibration system and method for phase-locked loops
A method for calibrating a bandwidth of a phase-locked loop begins with detecting an error signal generated by the phase-locked loop in response to a stimulus...
US-8,049,539 Circuit with variation correction function
A circuit with variation correction function is capable of obtaining an output characteristic near a desired value by suppressing variation of the output...
US-8,049,538 Semiconductor device
A shift register capable of supplying only a necessary clock signal to a necessary unit register with simple constitution. A semiconductor device is provided...
US-8,049,537 Method and apparatus for reducing transmitter AC-coupling droop
As part of a transmitter and receiver system a droop compensator is provided between the channel isolation device and the driver system to compensate for...
US-8,049,536 Half-power buffer amplifier
A half-power buffer amplifier includes a buffer stage having a first-half buffer stage and a second-half buffer stage. An output of the first-half buffer stage...
US-8,049,535 Sense amplifier for low voltage high speed sensing
A memory system includes a sense amplifier for detecting content of data memory cells by comparison with a voltage stored in a reference cell. The sense...
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