U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 6060700

Microwave Oven With Removable Storage Cassette in Dashboard of Motor Vehicle

A microwave oven adapted for use within a motor vehicle dashboard area. The microwave oven has a removable storage cassette, and slidable platforms for securing and serving containers of beverages and foods.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 332/151 - Plural modulation


Subclass of Class 332 - Modulators
Definition: Subject matter having a plurality of modulators, modulating
No. of patents: 123
Last issue date: 05/06/2008


1        
NumberTitleIssue Date
7369624Carrier suppression type modulator with encoded modulating signals
A carrier suppressed information signal modulation arrangement employs a plurality of serially coupled modulators. Each of the serially coupled modulators has a carrier input, a modulating signal input and a modulated carrier output. A carrier is applied to the carr...
05/06/2008
7358829Transmission apparatus, communication apparatus and mobile radio apparatus
Transmission apparatus capable of reducing distortion of the vector modulation wave that is the transmission output to a sufficiently small level is provided. An amplifying section (105) generates a vector modulation wave based on an amplitude component modul...
04/15/2008
7343015Method and apparatus for high fidelity wireless stereophonic transmission utilizing dual frequency carriers
A method and system is disclosed for transmitting two related channels of signals through the air. A first channel of signals is modulated with a first carrier frequency, and a second channel of signals is modulated with a second carrier frequency. The modulated fir...
03/11/2008
7343138Compensating for load pull in electromagentic signal propagation using adaptive impedance matching
The invention relates to for processing an electromagnetic input signal, wherein the signal is passed through an input to be modified across a plurality of modifying segments using a characteristic of the signal, and wherein the plurality of segments have a pluralit...
03/11/2008
7327202Optimization for an IQ modulator
An IQ modulator's performance is optimized through determination of suitable control parameters by the application of known DC biases as the I and Q inputs. Also known are the relative amplitude and actual phase of the sine and cosine carriers to be modulated before...
02/05/2008
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
7321752Linear amplification arrangement with non-linear amplifier element for a mobile radio device
A system and method to optimize the efficiency of an amplifier device is provided by the including a non-linear amplifier in a mobile radio device. A phase displaced signal in relation to the input signal is respectively produced in the amplifier device with a non-l...
01/22/2008
7310381Power amplifier pre-distortion device and method for orthogonal frequency division multiplexing
In some embodiments of the present invention the nature of an input signal is identified and the amplification of a pre-amplifier and a power amplifier in a transmitter system are modified responsive to whether the momentary content of the input signal is a preamble...
12/18/2007
7295628Stereo multiplex encoder (MPX) for FM transmission
A stereo multiplex encoder (MPX) for FM transmission with a digital signal processor utilizes residual sideband modulation in stereo transmission instead of the conventional double sideband modulation. The adjustment of the sampling frequency to the modulation frequ...
11/13/2007
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
7276985Transmission modulation apparatus, communication apparatus and mobile wireless apparatus
Provided is a transmission modulation apparatus, using polar modulation of two-point modulation scheme, capable of completing a timing adjustment of a BB phase modulation signal and BB amplitude modulation signal in a short time. A phase modulation section (10
10/02/2007
7254186Electromagnetic wave transmitter, receiver and transceiver systems, methods and articles of manufacture
The invention is directed to a system for processing an electromagnetic wave by receiving rectangular coordinate information for the electromagnetic wave; and directly converting the rectangular coordinate information into a magnitude signal, a sin(Φ), and a cos(Φ...
08/07/2007
7248626System and method of communication via embedded modulation
A single subscriber line multi-point communication system is disclosed. In general, the multi-point communication system can include a first transceiver coupled to a subscriber line capable of transmitting and receiving at least two modulation methods, either of sai...
07/24/2007
7245183Apparatus, methods and articles of manufacture for processing an electromagnetic wave
A method of processing an electromagnetic wave comprises regulating at least two independently controllable current sources with a signal determined from at least one characteristic of the electromagnetic wave to generate a processed electromagnetic wave from at lea...
07/17/2007
7235980Cable detection apparatus and method
A cable detection apparatus is disclosed having a filter, the filter transmitting components of a signal detected substantially at certain harmonics of a first frequency. The filter may also attenuate the signal at certain even harmonics thereof. A method of detecti...
06/26/2007
7218951Continuous closed-loop power control system including modulation injection in a wireless transceiver power amplifier
A single continuous closed-loop power control feedback system provides seamless power control for a power amplifier and also enables an AM signal to be injected into the power amplifier through the power amplifiers' control port. The AM signal is developed by an I/Q...
05/15/2007
7199844Quadratic nyquist slope filter
A television demodulator circuit, for use in a television receiver, generates baseband video and audio outputs from a television signal, such as an intermediate frequency television signal. The I, Q demodulator circuit mixes the television signal with an in-phase (...
04/03/2007
7183958Sub-ranging digital to analog converter for radiofrequency amplification
An apparatus and method for amplifying a radiofrequency signal using a main Digital to Analog Converter (RFDAC) and a subordinate Digital to Analog Converter (Sub-DAC). The main RFDAC provides a first portion of a N-bit digital output, which specifies the amplificat...
02/27/2007
7154329Method and apparatus for compensating amplifier output for temperature and process variations
An amplifier circuit includes a calibration circuit with a controllable circuit element such as a digital resistor. One or more properties of the controllable circuit element (e.g., the resistance in a digital resistor) is varied by a digital calibration word such t...
12/26/2006
7132969Configuration for digital-analog conversion of high-frequency digital input signal into carrier-frequency analog output signal
A delay device has at least one first delay element and optional additional delay elements connected downstream from the first in a serially consecutive manner. The digital input signal is connected to an input of the first delay element and is connected to an input...
11/07/2006
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
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
7102465Frequency discrete LC filter bank
An inductive (“L”)-capacitive (“C”) filter bank has application for use in a television receiver. The LC filter includes inductors configured in at least one inductive (“L”) bank, and capacitors configured in at least one capacitive (“C”) bank. The i...
09/05/2006
7099373Noise shaping technique for spread spectrum communications
A spread spectrum noise shaper uses a modulation technique to achieve a greater signal-to-noise or signal-to-interference ratio (SNR or SIR). The technique doubles the system SIR, in principle. This doubling yields a doubling in system capacity. SNR is increased by ...
08/29/2006
7088202Methods and apparatus for an improved discrete LC filter
A discrete inductive-capacitive (LC) filter selects between at least two inductor banks to tune the LC filter. The filter receives an input signal that includes one or more bands of frequencies. A control signal selects a band of frequencies for processing. A first ...
08/08/2006
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
7072421IQ modulation systems and methods that use separate phase and amplitude signal paths and perform modulation within a phase locked loop
A digital signal processor generates in-phase, quadrature-phase and amplitude signals from a baseband signal. A modulator modulates the in-phase and quadrature-phase signals to produce a modulated signal. A phase locked loop is responsive to the modulated signal. Th...
07/04/2006
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
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
7054385Reduction of average-to-minimum power ratio in communications signals
This invention, generally speaking, modifies pulse amplitude modulated signals to reduce the ratio of average power to minimum power. The signal is modified in such a manner that the signal quality remains acceptable. The signal quality is described in terms of the ...
05/30/2006
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
7023292Polar modulation using amplitude modulated quadrature signals
Polar modulators include a phase splitter, a controller, variable current sources, transistor circuits, and a combiner. The phase splitter splits a RF carrier signal into quadrature component signals that are 90 degrees out of phase with each other. The controller g...
04/04/2006
7020452Actively matched center-tapped marchand balanced mixer
An apparatus comprising an amplifier circuit, a tuning circuit and a mixer circuit. The amplifier circuit may be configured to generate an output signal at a first node in response to an input signal received through a second node. A tuning circuit may be (i) couple...
03/28/2006
7012477Modulation using discrete amplitude adjustment and dual digital delay lines
The present invention provides a means to implement amplitude and phase modulation digitally and directly at an RF frequency that benefits from high output power without the use of amplifiers. This is accomplished by the combination of two varying amplitude and phas...
03/14/2006
7009447Outphasing modulator
Briefly, an apparatus having an outphasing modulator that may provide at least first and second outphased signals to a power amplifier. The outphasing modulator may control amplitude of the first and second outphased signals by an amplitude modulation controller whi...
03/07/2006
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
6993312Double balanced diode mixer with high output third order intercept point
A double balanced mixer consisting of an RF balun, a local oscillator balun and a diode “quad” bridge circuit connected between the two baluns and where the IF output is taken at the center tap of the RF balun secondary transformer. A second harmonic termination...
01/31/2006
1        
 
Sign InRegister
Username  
Password   
forgot password?