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Class 331/76 - Harmonic producing or selecting network


Subclass of Class 331 - Oscillators
Definition: Subject matter wherein (1) the active element is operated
No. of patents: 93
Last issue date: 10/04/2011


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NumberTitleIssue Date
8031014Solid state terahertz radiation frequency multiplier
A nonlinear solid-state device useful for frequency conversion of electromagnetic radiation and in particular for harmonic generation, comprising a waveguiding electromagnetically distributed structure (WEDS) which includes monolithically a synthetic nonlinear mater...
10/04/2011
7629857Second harmonic oscillator
A second harmonic oscillator has a series positive feedback configuration, suppresses output of a fundamental signal, and outputs a second harmonic signal having a frequency in a range from 1 GHz to 200 GHz generated inside of a circuit. The second harmonic oscillat...
12/08/2009
7403075Ultra wide band signal generator
Disclosed is an ultra wide band signal generator. The ultra wide band signal generator generates a signal of a required frequency using a harmonic signal having a frequency range of a ultra wide band (UWB). The ultra wide band signal generator includes an active ind...
07/22/2008
7336136High frequency semiconductor integrated circuit device, wireless electric unit and wireless communication system
A transmission oscillator of differential output configuration is incorporated into a high frequency IC. Further, an equivalent impedance having an impedance equivalent to the impedance connected with a regular output terminal is provided. Or, a dummy external termi...
02/26/2008
7321735Optical down-converter using universal frequency translation technology
A method and system for converting an optical signal to electrical information signals, including demodulated baseband information signals and modulated baseband signals at multiple harmonics. In an embodiment, the optical information signal is amplitude modulated w...
01/22/2008
7295826Integrated frequency translation and selectivity with gain control functionality, and applications thereof
Methods and apparatuses for frequency selectivity and frequency translation, and applications for such methods and apparatuses, are described herein. The method includes steps of filtering an input signal, and down-converting the filtered input signal. The filtering...
11/13/2007
7292835Wireless and wired cable modem applications of universal frequency translation technology
Frequency translation and applications of same are described herein, including cable modem applications. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, enhanced signal reception, unified down-conversion and fil...
11/06/2007
7259636Synchronous signal generator using a crystal oscillator and filter
A synchronous signal generator according to the present invention outputs a pulse with low jitter by setting the sine wave output of a crystal oscillator close to an ideal sine wave, and converting it into a pulse signal. By passing the sine wave output from the cry...
08/21/2007
7253707Tunable active inductor
An active inductor capable of tuning a self-resonant frequency, an inductance, a Q factor, and a peak Q frequency by applying a tunable feedback resistor to a cascode-grounded active inductor is disclosed. The tunable active inductor includes a first transistor havi...
08/07/2007
7245889Signal source with multiphase filter
The invention relates to a signal source (S) which comprises a local oscillator (5) for generating a reference frequency signal fo. The signal source comprises: a frequency divider by N (6) connected to the local osci...
07/17/2007
7233211Method to improve high frequency divider bandwidth coverage
A divider for a local oscillator (LO) generator system of a phase locked loop (PLL) in a transceiver chip. The divider includes at least one divider unit. Each divider unit includes a frequency divider unit for receiving an input signal having an input frequency and...
06/19/2007
7221920Voltage controlled oscillator, frequency synthesizer and communication apparatus
A voltage controlled oscillator includes a resonator configured to resonate with an initial oscillation frequency during starting period of oscillation and a steady oscillation frequency during a steady state oscillation. The resonator includes a film bulk acoustic ...
05/22/2007
7215220Broadband power combining device using antipodal finline structure
A broadband power combining device includes an input port, an input waveguide section, a center waveguide section formed by stacked wedge-shaped trays, an output waveguide section, and an output port. Each tray is formed of a wedge-shaped metal carrier, an input ant...
05/08/2007
7167058Temperature compensation for a variable frequency oscillator without reducing pull range
A variable frequency oscillator having multiple, independent frequency control inputs, each coupled to a respective tuning sub-circuit. The tuning sub-circuits are connected in parallel with each other and with a resonator module, which may be a quartz crystal, indu...
01/23/2007
7161440Temperature compensation circuit
A temperature compensation circuit has multiple configurable modules to produce a compensation signal whose temperature characteristic curve is the inverse of the frequency-to-temperature characteristic curve of a specified oscillator. A set of first modules that pr...
01/09/2007
7110444Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
Frequency translation and applications of the same are described herein, including RF modem and wireless local area network (WLAN) applications. In embodiments, the WLAN invention includes an antenna, an LNA/PA module, a receiver, a transmitter, a control signal gen...
09/19/2006
7110435Spread spectrum applications of universal frequency translation
Frequency translation and spread spectrum applications of same are described herein. Such applications include, but are not limited to, unified down-conversion and de-spreading, unified up-conversion and spreading, RAKE receivers utilizing unified down-conversion an...
09/19/2006
7082819Doppler radar for detecting tire abnormalities
The present subject matter generally concerns the detection of tire related anomalies in a pneumatic tire using Doppler Micro-Power Impulse Radar technology together with radar signal analyzation methodologies. More particularly, the present disclosure relates to me...
08/01/2006
7082171Phase shifting applications of universal frequency translation
A universal frequency translation module (UFT) frequency translates an electromagnetic (EM) input signal by sampling the EM input signal according to a periodic control signal (also called an aliasing signal). By controlling the relative sampling time, the UFT modul...
07/25/2006
7072390Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments
Frequency translation and applications of the same are described herein, including RF modem and wireless local area network (WLAN) applications. In embodiments, the WLAN invention includes an antenna, an LNA/PA module, a receiver, a transmitter, a control signal gen...
07/04/2006
7053721Oscillator having a resonant circuit and a drive circuit
An oscillator includes a resonant circuit generating a resonant signal, a drive circuit that feeds back the resonant signal to the resonant circuit, and an output terminal connected to a given node of the resonant circuit, an oscillation signal of the oscillator bei...
05/30/2006
7054296Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation
Frequency translation and applications of same are described herein, including wireless local area network (WLAN) applications such as IEEE Standard 802.11 WLANs. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, ...
05/30/2006
7038526Method and apparatus facilitating operation of a resonant tunneling device at a high frequency
An apparatus includes a circuit having first and second portions which are each coupled between first and second nodes. The first portion includes a resonant tunneling device, and the second portion has a reactance that includes, at a selected frequency, a complex c...
05/02/2006
7039372Method and system for frequency up-conversion with modulation embodiments
A method and system is described wherein an information signals is gated at a frequency that is a sub-harmonic of the frequency of the desired output signal. In the modulation embodiments, the information signal is modulated as part of the up-conversion process. In ...
05/02/2006
7027786Carrier and clock recovery using universal frequency translation
Coherent detection of a received EM signal using universal frequency translation (UFT) is described herein. The received EM signal is sampled according to a sub-harmonic LO signal, where the LO signal is in frequency and phase coherence with the received EM signal. ...
04/11/2006
7019679Multiplexer with low parasitic capacitance effects
A differential multiplexer includes a plurality of multiplexing circuits. Each multiplexing circuit inputs a corresponding differential input signal including a positive input signal and a negative input signal, and outputs positive and negative output signals. Each...
03/28/2006
7019596Multiple output high-frequency oscillator
A high-frequency oscillator that enables a plurality of frequency signals to be output. The high-frequency oscillator outputs in parallel a plurality of frequency components from within a frequency spectrum of an oscillation output of a crystal oscillator, selects o...
03/28/2006
7010286Apparatus, system, and method for down-converting and up-converting electromagnetic signals
Methods, systems, and apparatuses for down-converting and up-converting an electromagnetic signal. In embodiments, the invention operates by receiving an electromagnetic signal and recursively operating on approximate half cycles of a carrier signal. The recursive o...
03/07/2006
7006805Aliasing communication system with multi-mode and multi-band functionality and embodiments thereof, such as the family radio service
A receiver having multi-mode and multi-band functionality and capabilities is described herein. The receiver is capable of selectively operating over a plurality of bands and channels. The receiver operates in a plurality of modes, including but not limited to a sin...
02/28/2006
6992535Voltage-controlled oscillator having a bandpass filter
A voltage-controlled oscillator (VCO) having a bandpass filter includes an oscillation circuit and a bandpass filter. The oscillation circuit outputs a first oscillation frequency with a harmonic distortion according to a tuning voltage. The first oscillation freque...
01/31/2006
6933793Method of overtone selection and level control in an integrated circuit CMOS negative resistance oscillator to achieve low jitter
A stable high-frequency clock pulse apparatus and method including frequency source, overtone crystal unit coupled with a negative resistance oscillator, a bandpass overtone filter and a drive level control is provided. The apparatus can include a frequency multipli...
08/23/2005
6885253Low-power phase-locked-loop and method using quadrature phase-signals at one-half the output frequency
A phase-locked loop includes a voltage-controlled oscillator (VCO) to generate a plurality of quadrature-phase signals at one-half an output frequency in response to bias signals. The VCO also includes a times-two multiplier biased by the bias signals to generate th...
04/26/2005
6885255Clock control system using converting clock control sections to provide a minimum clock number to operate corresponding devices
The invention saves power by supplying minimum clocks required for respective blocks. In a clock control system that supplies clocks to a plurality of blocks, such as a CPU-4, a bus, a peripheral circuit and other circuits, a clock supplied from a clock oscil...
04/26/2005
6639477Oscillator, transmitter provided with such an oscillator, and use of such a transmitter
An oscillator has a resonator which includes at least one capacitor and at least one inductor. The resonator supplies a first signal of a first frequency at an output of the resonator. A frequency multiplier or a frequency divider is connected, via an inp...
10/28/2003
6566969High frequency dual band output oscillator
A voltage control oscillator used in mobile communication systems such as cellular phones and video machines. An oscillation output of the first output oscillation circuits (1a) enters a broad band buffer amplifier circuit (4) through a stage-to-stage cou...
05/20/2003
6549083High-frequency crystal oscillator outputting a harmonic component
A high-frequency crystal oscillator capable of outputting a signal at a frequency, for example, higher than 500 MHz without using a multiplication amplifier. The high-frequency crystal oscillator comprises a voltage controlled Colpitts oscillation circuit...
04/15/2003
6441692PLL frequency synthesizer
The invention provides a high-speed PLL frequency synthesizer in which the frequency of a reference signal can be made larger than a frequency interval of an external output with a simple configuration. An n-th harmonic of an output of a voltage-controlle...
08/27/2002
6384691Millimeter wave low phase noise signal source module
A high frequency signal source module includes a housing have a high-Q dielectric puck and a transition enclosure employing an antipodal finline transition. A circuit module connected to the high-Q puck includes an oscillator circuit that cooperates with ...
05/07/2002
6373343Oscillator and method
An integrated circuit (10) is disclosed comprising a fundamental frequency oscillator comprising a reference node (32) whose voltage varies between a high threshold and a low threshold. The fundamental frequency oscillator is operable to generate a first ...
04/16/2002
6275118Push-push oscillator
A push--push oscillator is formed by (a) a resonator circuit including a transmission line having one-half wavelength and both ends of the line being left open, and a capacitance for frequency control coupled to the transmission line in parallel, and (b) ...
08/14/2001
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