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8174325 |
Adaptive injection-locked oscillator array for broad spectrum RF analysis
The present invention provides an array of tunable, injection-locking oscillators which are scalable to higher frequencies and measure the entire relevant frequency space simultaneously. The...
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8169050 |
BEOL wiring structures that include an on-chip inductor and an on-chip capacitor, and design structures for a radiofrequency integrated circuit
Back-end-of-line (BEOL) wiring structures that include an on-chip inductor and an on-chip capacitor, as well as design structures for a radiofrequency integrated circuit. The on-chip inductor and...
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8165557 |
Frequency down-conversion system using arrays of coupled non-linear elements
A system includes at least a first array connected to a second array. The first array includes an odd number, greater than one, of unidirectionally-coupled non-linear first array elements. The...
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8143954 |
Oscillation device with auxiliary oscillating means
A device can be coupled to an electrical load for supplying electrical power to the electrical load. The device contains an oscillator unit and an auxiliary oscillator unit. The oscillator unit is...
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8143955 |
Oscillator circuit for radio frequency transceivers
Oscillator circuit for radio frequency transceivers. An oscillator circuit includes a first oscillator that generates a signal having a first frequency and a second oscillator that generates a...
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8130044 |
Phase-locked loop circuitry with multiple voltage-controlled oscillators
Configurable phase-locked loop circuitry is provided. The phase-locked loop circuitry may include a buffer having a buffer output and a multiplexer having inputs and an output. The phase-locked...
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8130047 |
Open loop coarse tuning for a PLL
In many types of wireless applications (like wireless modems), it is important that the phase locked loops (PLLs) be able to synthesize clock frequencies in a wide tuning range. Because of the...
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8126079 |
High-speed serial data signal interface circuitry with multi-data-rate switching capability
High-speed serial data signal transmitter and/or receiver circuitry is able to dynamically switch between handling data at two (or more) different data rates. Such a switch can be made very rapidly...
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8120429 |
Voltage-controlled oscillator methods and apparatus
Methods and apparatus are provided for generating a clock signal with relatively high bandwidth and relatively low phase noise. A circuit of the invention can include a pair of transistors serially...
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8115556 |
Resonant device with improved features
The device resonant comprises a plurality of synchronized oscillators. Each oscillator comprises a resonator which comprises detection means providing detection signals representative of...
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8067987 |
Millimeter-wave wideband voltage controlled oscillator
A voltage controlled oscillator-phase lock loop (VCO-PLL) system includes a voltage controlled oscillator (VCO) system implementing four-channel architecture, such that two bands support two...
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8058933 |
Low frequency clock generation
A first and a second resonator are fabricated monolithically adjacent to one another. The first resonator is the reference resonator. The resonant frequency of the second resonator is offset by a...
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8049567 |
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 other and to the DC current source. A...
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8049550 |
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 oscillating frequency that represents a...
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8013681 |
Wide spectrum radio transmit architecture
A communications device (100) includes a frequency divider circuit (106) having a plurality of frequency division ratios. The device also includes at least one phase-lock loop (PLL) circuit (101,...
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7994870 |
Tunable filter with gain control circuit
An apparatus includes a filter and a gain control circuit. The filter receives and filters an input signal and provides an output signal in a first mode and operates as part of an oscillator in a...
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7982547 |
Phase locked loop-based tuning adjustable filter
Phase locked loop based frequency tuning of an adjustable filter is disclosed. A resonant circuit includes the adjustable filter, and an oscillator signal provides an input to the resonant circuit.
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7982550 |
Highly accurate temperature stable clock based on differential frequency discrimination of oscillators
An apparatus and a method for compensating for a mismatch in temperature coefficients of two oscillator frequencies to match a desired frequency ratio between the two oscillator frequencies over a...
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7978012 |
Dual PLL loop for phase noise filtering
System for filtering an input frequency to produce an output frequency having low phase noise. A first PLL includes, in the feedback path, a frequency translation circuit which translates a...
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7973576 |
Voltage controlled oscillators and phase-frequency locked loop circuit using the same
A voltage controlled oscillator comprising first and second differential delay cells. The first differential delay cell has a first control voltage input terminal. The second differential delay...
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7969250 |
Structure for a programmable interpolative voltage controlled oscillator with adjustable range
A design structure for a programmable interpolative voltage controlled oscillator (VCO) with adjustable frequency range output is provided. Programmable delay cells whose size is modifiable based...
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7952438 |
Injection locking clock generator and clock synchronization circuit using the same
An injection locking clock generator can vary the free running frequency of an injection locking oscillator to broaden an operating frequency range of an oscillation signal injected to itself,...
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7948326 |
Method for carrying out a frequency change
The invention relates to a method for carrying out a frequency change whilst retaining the phase relationship between several devices, in particular, network analyzers. Each device has at least one...
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7942833 |
Motion guide device, and its control system and control program
A device for inducing a user's motion in a rhythm responsive to a motion rhythm after the user's motion rhythm changes suddenly. The walking assist device generates a first oscillator which attains...
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7944316 |
Multi-phase oscillator
A multi-phase oscillator includes a plurality of ring oscillators (21) each having a plurality of output ports and each formed by connecting an odd number of inverters (20) in a ring, and a...
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7940139 |
Voltage-controlled oscillator, frequency synthesizer, and oscillation frequency control method
In a voltage-controlled oscillator capable of broadening a variable frequency range while suppressing increase of conversion gain, a converter (12) converts an input voltage to a first physical...
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7930120 |
System and circuit for determining data signal jitter via asynchronous sampling
A system and circuit for determining data signal jitter via asynchronous sampling provides a low cost and production-integrable mechanism for measuring data signal jitter. The data signal is...
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7902930 |
Colpitts quadrature voltage controlled oscillator
Provided is a colpitts quadrature voltage controlled oscillator capable of obtaining quadrature orthogonal signals using a quadrature combination between a base and a collector of each transistor,...
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7902926 |
Communication system and oscillation signal provision method
An embodiment of a communication system is provided, in which a high frequency oscillator generates a first high frequency signal upon receipt of no disable signal. The first high frequency signal...
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7898345 |
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....
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7898342 |
Circuit for clock interpolation and method for performing clock interpolation
In a circuit and a method of clock interpolation, an input signal at a first frequency is processed and at least one output signal having a second frequency being a multiple of the first frequency...
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7890787 |
Microprocessor programmable clock calibration system and method
A microprocessor programmable clock calibration device compares, in response to a calibration command from a programmable processor, turns on a normally off reference oscillator clock, compares the...
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7880551 |
Systems and methods for distributing a clock signal
Systems and methods for distributing a clock signal are disclosed. In some embodiments, systems for distributing a clock signal include a plurality of resonant oscillators, each comprising an...
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7868704 |
Broadband integrated television tuner
A broadband integrated television receiver for receiving a standard antenna or cable input and outputting an analog composite video signal and composite audio signal is disclosed. The receiver...
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7869492 |
Frequency-locking device and frequency-locking method thereof
The invention proposes a simple method suitable for automatically locking frequency during USB data communication. Based on the soft plug/unplug concept proposed in the contents and the error...
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7863987 |
Clock signal generating and distributing apparatus
LC resonant voltage control oscillators are adopted as voltage control oscillators for the purpose of providing a clock generating and distributing apparatus that can generate and distribute a...
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7852161 |
Complementary ring oscillator with capacitive coupling
An oscillator. The oscillator includes a first ring oscillator having a first plurality of inverters, a first plurality of capacitors each having a first terminal coupled to an output terminal of a...
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7848394 |
Reconfigurable transceiver architecture for frequency offset generation
A first serial transceiver has a reference clock, a first transmitter, and a first receiver. The first receiver includes (i) a phase detector, and (ii) a phase rotator. The phase rotator is driven...
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7840190 |
Frequency source synchronization and redundancy
A system and method for ensuring proper synchronization of a plurality of frequency sources used in reception diversity-based radio reception. The frequency sources are concatenated in a...
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7834705 |
Frequency synthesizer having multi-band voltage controlled oscillator
There is provided a frequency synthesizer including a multi-band voltage controlled oscillator having a plurality of voltage controlled oscillating cores outputting oscillation frequencies having...
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7826563 |
High speed multi-modulus prescalar divider
A system and method are provided for multi-modulus division. The method accepts an input first signal having a first frequency and divides the first frequency by an integral number. A second signal...
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7821343 |
Transmitter with multiple phase locked loops
A transmitter that includes a first phase locked loop (PLL) and a second PLL coupled to the first PLL is described. In one implementation, the first PLL is an inductance-capacitance (LC) type PLL...
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7821350 |
Methods and apparatus for dynamic frequency scaling of phase locked loops for microprocessors
A phase-locked loop employing a plurality of oscillator complexes is disclosed. The phase-locked loop includes a clock output and a plurality of oscillator complexes operable to generate output...
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7812679 |
Multi-band frequency generation method and apparatus
A frequency generation unit (FGU) 100 includes a plurality of selectable voltage controlled oscillators (110) whose output frequencies are chosen in relationship with a predetermined intermediate...
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7800457 |
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....
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7796719 |
Signal detection apparatus and method thereof
The invention discloses a signal detection apparatus and method thereof for detecting whether an input signal of a set of serial ATA signals is an out of band (OOB) signal. The signal detection...
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7792652 |
Oscillator calibration for motor controller
Systems, methods, and apparatuses including computer program products for oscillator calibration. In one aspect, a calibration module includes a monitor submodule that evaluates operation of a...
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7792649 |
System and circuit for constructing a synchronous signal diagram from asynchronously sampled data
A system and circuit for constructing a synchronous signal diagram from asynchronous sampled data provides a low cost and production-integrable technique for providing a signal diagram. The data...
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7777586 |
Multi-brand electronic apparatus and multi-band signal processing method
A multi-band electronic apparatus and method thereof is provided. The method comprises outputting a first output signal in the first band by a first voltage controlled oscillator according to a...
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7772928 |
Arrangement for phase synchronization according to the master/slave principle
An apparatus for the phase synchronization of several devices, wherein one device is the master device and the other devices are slave devices, with a phase synchronization unit for every device,...
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