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9041440 |
Graphene-based frequency tripler
A frequency tripler device is disclosed. The frequency tripler device includes a first graphene based field effect transistor (FET) of a first dopant type, having a gate, a drain, and a source,... |
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8981821 |
Interference mitigation output frequency determined by division factors selected randomly
Several methods and circuits configured to mitigate signal interference of at least one aggressor circuit operable on a first clock signal within an interfering frequency range of at least one... |
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8977519 |
Spectrum analyzer using multiple intermediate frequencies and multiple clock configurations for residual, spurious and image signal reduction
A spectrum analyzer for measuring an RF signal over a selected frequency span configured to use multiple Intermediate Frequencies (IFs) for residual, spurious and image signal reduction. The... |
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8970063 |
Method and arrangement for balancing voltages of series connection of storage units for electrical energy
An arrangement which includes two or more energy storage units for electrical energy connected in series, and two or more balancing resistor units. Each balancing resistor unit is connected in... |
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8970267 |
Asynchronous clock dividers to reduce on-chip variations of clock timing
This invention is a means to definitively establish the occurrence of various clock edges used in a design, balancing clock edges at various locations within an integrated circuit. Clocks entering... |
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8970266 |
Resistance correction circuit, resistance correction method, and semiconductor device
Disclosed is a semiconductor device that suppresses stress-induced resistance value changes. The semiconductor device includes a resistance correction circuit. The resistance correction circuit... |
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8943352 |
Low power timing, configuring, and scheduling
A device reduces its energy consumption using a relatively lower frequency and lower power secondary oscillator to maintain timing information when a higher frequency and higher power primary... |
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8933745 |
Transconductance-enhancing passive frequency mixer
A transconductance-enhancing passive frequency mixer comprises a transconductance amplification stage, a frequency mixing stage, and an output transresistance amplifier. The transconductance... |
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8884663 |
State machine for low-noise clocking of high frequency clock
Methods, apparatus, and fabrication techniques relating to management of noise arising from capacitance in a clock tree of an integrated circuit. In some embodiments, the methods comprise... |
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8860502 |
Method and apparatus for monitoring timing of critical paths
An apparatus for monitoring timing of a plurality of critical paths of a functional circuit includes a plurality of canary circuits, each configured to be coupled to a critical path of a... |
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8841960 |
Clock signal generating circuit and power supply including the same
The present invention relates to a clock signal generating circuit and a power supply including the same. The present invention includes: a counter for counting one period of an input clock signal... |
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8836385 |
Frequency converter and switching method thereof
A frequency converter includes a comparator, an error computation unit and a calibration unit. The comparator receives a reference voltage signal and a triangle wave signal, and outputs a... |
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8829956 |
Signal generating circuits for generating fan driving signal
A signal generating circuit for generating a fan driving signal includes a phase adjusting circuit, a direct digital frequency synthesizer, a first operating circuit, a driving signal generator... |
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8823434 |
Clock correction circuit and clock correction method
An operation clock generation circuit performs a calculation on the basis of the frequency errors of a fundamental clock and the clock pulses of the fundamental clock, and generates an operation... |
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8766730 |
Frequency tunable signal source
A frequency tunable signal source (100) with first (105) and a second (115, 315) oscillators, each of which outputs a signal at a fundamental frequency (f1, f2) and at least one signal at a... |
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8754697 |
Hybrid dual mode frequency synthesizer circuit
A dual mode frequency synthesizer circuit including: a DDS or PLL (204) for receiving an input clock (202) and generating an output clock (206), in a high resolution mode; and an RF switch (210)... |
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8749280 |
Frequency synthesizer and associated method
A frequency synthesizer includes an oscillator for providing an RF clock, a phase shifter arranged to provide a shifted reference clock by changing phase of a frequency reference clock, and a... |
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8710879 |
Apparatus and method for multiplying frequency of a clock signal
An apparatus and method for multiplying frequency of a clock signal are provided, wherein the apparatus provides an initial oscillator signal, compares the initial oscillator signal with a... |
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8674730 |
Frequency divider arrangement and method for providing a quadrature output signal
A frequency divider arrangement for providing a quadrature output signal with a quadrature output signal frequency, includes a signal source for providing a base signal with a base signal... |
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8659330 |
Signal generation apparatus and signal generation method
In order to output an accurate waveform in which quantization noise has been cancelled out, provided is a signal generating apparatus that outputs an output signal corresponding to a waveform data... |
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8656197 |
Semiconductor device and control method for semiconductor device
A semiconductor device includes: a frequency setting information storage unit that stores sets of frequency information indicating setting of a frequency supplied by an oscillation unit and... |
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8633739 |
Frequency divider circuit
Fractional frequency division is performed by sequentially selecting phase signals for division, where transitioning from a previous phase signal to a next phase signal for division occurs in... |
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8610479 |
On die low power high accuracy reference clock generation
A system and method are disclosed for generating a high accuracy and low power on die reference clock. An LC clock is generated on die and a frequency divider lowers the LC clock frequency to a... |
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8610480 |
Clock signal generating circuit and power supply including the same
The present invention relates to a clock signal generating circuit and a power supply including the same. The present invention includes: a counter for counting one period of an input clock signal... |
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8604831 |
Integrated circuit, clock gating circuit, and method
An integrated circuit 2 comprises a functional circuit 4, 6 which is arranged to operate in response to an operational clock signal having an operational clock frequency. To conserve power, the... |
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8588720 |
Signal decimation techniques
Techniques for decimating a first periodic signal to generate a second periodic signal. In an exemplary embodiment, the first periodic signal is divided by a configurable integer ratio divider,... |
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8588726 |
Low noise mixer
An apparatus comprising a low noise mixer comprising a transconductance amplifier configured to receive a differential voltage and to generate a differential current signal, a passive mixer... |
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8547156 |
Linearizing field effect transistors in the OHMIC region
Apparatus and methods are disclosed related to using one or more field effect transistors as a resistor. One such apparatus can include a field effect transistor (FET), averaging resistors and a... |
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8542552 |
DLL circuit, frequency-multiplication circuit, and semiconductor memory device
According to one embodiment, there is provided a DLL circuit including a delay chain, a plurality of phase comparators, and a controller. The plurality of phase comparators receive the reference... |
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8514003 |
Clock signal generation circuit
A clock signal generation circuit includes a clock delay control signal generation unit configured to divide a clock signal to generate a divided clock signal, generate a plurality of periodic... |
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8478215 |
Harmonic rejection mixer and phase adjustment method thereof
A harmonic rejection mixer converts a frequency of a radio frequency signal by using a first to a third local signals (LOs) whose phases are different from each other, and the harmonic rejection... |
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8478219 |
Heterodyne receiver
A down-conversion module for a heterodyne receiver comprises a first mixer circuit, a second mixer circuit and an interconnection. The first mixer circuit includes first and second differential... |
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8466717 |
Frequency synthesizer
The provision of a technique capable of determining a state where PLL control does not operate normally instantly or in advance in a frequency synthesizer that frequency-divides, A/D converts, and... |
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8461883 |
Frequency generator
A frequency generator is used for generating a frequency within a frequency range. The frequency generator includes a variable current source, a voltage drop generation unit, a voltage source, a... |
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8456343 |
Switched capacitor type D/A converter
A switched capacitor type D/A converter receives m-bit (m represents an integer) input data, and outputs an analog signal that corresponds to the input data value. Switch circuits are provided to... |
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8456203 |
Multiphase clock generation circuit
A multiphase clock generation circuit includes: a first frequency divider to generate a first intermediate clock and a second intermediate clock; a second frequency divider to generate output... |
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8457586 |
Radio frequency circuit and mixer
A radio frequency circuit includes a transformer, a local oscillator, a first mixer, a second mixer, a first variable gain amplifier, and a second variable gain amplifier. The first mixer includes... |
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8412962 |
Microprocessor with improved thermal monitoring and protection mechanism
A microprocessor including a temperature sensor that monitors a temperature of core logic of the microprocessor during operation thereof, and operating point information from which may be... |
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8390343 |
Injection-locked frequency divider
An injection-locked frequency divider is provided and which includes an injection transistor, an oscillator, a current source and a transformer. The injection transistor is used to receive an... |
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8362805 |
Power switch ramp rate control using daisy-chained flops
In an embodiment, an integrated circuit may include one or more power managed blocks and a power manager circuit. The power manager circuit may be configured to generate a block enable for each... |
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8346163 |
Radio frequency signal distribution using data cable system
A system for distributing radio frequency signals using a data cable system includes a method and components that receive a radio frequency (RF) signal, identify at least one unoccupied channel on... |
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8275342 |
Downconversion mixer
At very high frequencies, generally above 100 GHz, the performance of traditional radio frequency (RF) circuitry begins to significantly limit performance. An example is the hybrid coupler, which... |
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8269529 |
Low phase noise RF signal generating system and phase noise measurement calibrating method
Very low phase noise radio frequency (RF) source having multiple discrete frequency outputs used, for example, to calibrate phase noise measurement systems. The calibrator output frequencies can... |
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8258846 |
Method and apparatus for regenerating sampling frequency and then quickly locking signals accordingly
A receiving method and apparatus is disclosed. The method comprising steps of: receiving a plurality of data according to a symbol clock signal, and reading out the plurality of data according to... |
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8258826 |
Automatic frequency control circuit
The present invention realizes low power consumption at the time of an automatic frequency control circuit operation. An automatic frequency control circuit includes a mixing unit that generates a... |
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8258842 |
Dead-time detecting circuit for inductive load and modulation circuit using the same
Dead-time detector includes an N-type power switch and a resistor. The N-type power switch includes a first end coupled to the output end of the output-stage circuit for receiving an output... |
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8253447 |
Apparatus and method for frequency conversion and filter thereof
The present invention relates to an apparatus for frequency conversion, comprising: an analog-to-digital (A/D) converter, receiving and sampling an input signal according to a sampling frequency... |
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8253448 |
Techniques for varying frequencies of periodic signals
A circuit includes first and second frequency divider circuits and first storage circuits. Each of the first and the second frequency divider circuits receives periodic input signals and generates... |
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8249537 |
Noise cancellation circuit for a mixer device and related mixer device
A noise cancellation circuit for a mixer device includes a first signal terminal, coupled to a first output terminal, and a second signal terminal, coupled to a second output terminal of the RF... |
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8217688 |
Method and device for dividing a frequency signal
A method for dividing a frequency includes the steps of receiving a first signal having a first frequency as a clock input to a first digital counter and outputting a second signal as a clock... |