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7627291 |
Integrated circuit having a routing element selectively operable to function as an antenna
An integrated circuit operable to wirelessly communicate with other devices by utilizing a radio transceiver and a routing element is disclosed. The routing element is operable to route a signal...
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7623839 |
Semiconductor integrated circuit
A semiconductor integrated circuit including: a mixer circuit which includes a first MOS transistor a second MOS transistor; a third MOS transistor whose drain is connected to a first potential,...
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7623837 |
Receiver for an integrated heterodyne communication system including BAW-type resonators
A heterodyne receiving circuit for a digital communication system including a first band pass filter receiving a signal from an antenna, an amplifying circuit and a second narrow band pass filter...
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7620382 |
Frequency converter capable of preventing level of intermediate frequency signal from lowering due to rise in temperature
There is provided a bias power supply for setting a collector bias current of a mixer transistor and a collector bias current of an oscillation transistor. When a control voltage is equal to or...
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7616937 |
Subharmonic mixer capable of reducing noise and enhancing gain and linearlty
A subharmonic mixer, including an amplification unit for amplifying an input signal using at least one pair of amplification devices connected in parallel and a mixing unit for mixing the amplified...
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7616934 |
Switched impedance transformer for semiconductor circuits
A method of providing an impedance match for an integrated semiconductor circuit to other microwave elements is provided by allowing the selection of one of a plurality of impedance matching ratios...
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7613442 |
Switch circuit and method of switching radio frequency signals
A novel RF switch circuit and method for switching RF signals is described. The RF switch circuit is fabricated in a silicon-on-insulator (SOI) technology. The RF switch includes pairs of switching...
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7609792 |
Multiple-input multiple-output multichip transceiver with correlated clock signals
A multichip transceiver operates as part of a multiple-input multiple-output communication system. First receiver circuitry on a first integrated circuit processes radio-frequency (RF) signals...
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7606546 |
Variable frequency clock generator for synchronizing data rates between clock domains in radio frequency wireless communication systems
A system, method and system are disclosed for using a variable frequency clock generator to synchronize an average data rate over intervals of time in a variable clock domain to make it equal to a...
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7606323 |
Carrier leak reduction transmitter circuit
A transmitter circuit has two mixers that modulate a carrier wave according to an input signal, outputs a signal having information in a phase and an amplitude, detects a DC offset in each of the...
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7599677 |
Charge pump circuit having switches
A charge pump circuit that supplies current to an offset current of an output signal for an oscillating circuit is disclosed. The charge pump circuit includes a first switch and a second switch....
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7593708 |
Methods of operating electronic devices, and methods of providing electronic devices
Some embodiments include a method disposing an integrated circuit die within a housing, the integrated circuit die having integrated circuitry formed thereon, the integrated circuitry including...
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7593700 |
Controllable radio frequency stage with variable gain/attenuation, in particular incorporated into the transmission chain of a cellular mobile telephone, and corresponding control method
A radio frequency stage comprises an analog multiplier cell, and an analog current routing cell coupled thereto. The analog multiplier cell includes an input for receiving an input current having a...
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7587187 |
Ultra wide band, differential input/output, high frequency active mixer in an integrated circuit
A wideband mixer includes a core mixer having input terminals and output terminals for, respectively, receiving differential input signals and providing amplified differential output signals. A...
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7583946 |
Wireless communication system and method using clock swapping during image rejection calibration
A wireless communication receiver is disclosed that operates in a test mode to determine image correction information that is used to suppress undesired image signals when the receiver switches to...
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7583212 |
Reduced noise radio frequency integrated circuit
A radio frequency integrated circuit (RFIC) includes a digital to analog converter, an analog to digital converter, and a low noise amplifier. The digital to analog converter (DAC) is operably...
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7580694 |
Contactless integrated circuit with high-efficiency electrical power supply circuit
A circuit and method for supplying an electronic circuit with a direct supply voltage using high frequency antenna signals. The method includes producing a primary direct voltage equal to a...
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7580693 |
Passive reflection mixer
In one aspect, a mixer that provides improved isolation between an input oscillator and a mixing cell. In another aspect, a mixer that includes circuitry operative to shape an input signal provided...
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7570936 |
Sub-harmonically pumped mixer
A mixing circuit is described in connection with various embodiments.
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7567818 |
Mobile device with wide-angle optics and a radiation sensor
The invention comprises a mobile device controlled by moving it, for example, by tilting. The mobile device is equipped with wide-angle optics and with a radiation sensor detecting either visible...
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7567784 |
Tuner, broadcast signal processing apparatus comprising the same, and broadcast signal processing method
A tuner, a broadcast signal processing apparatus and method, which satisfy reception sensitivity of both terrestrial and cable televisions, when selecting a broadcast signal through a single...
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7565128 |
High performance low noise amplifier
A signal processing circuit is proposed, which is intended to receive a pair of input signals Sp and Sn in phase opposition on two input terminals and to provide two pairs of output currents SIp...
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7565116 |
High frequency module
A high frequency module comprises a layered substrate. Inside the layered substrate, a reception diplexer for processing reception signals and a transmission diplexer for processing transmission...
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7564801 |
Router reachability verification in IPv6 networks
A method of router reachability verification for hosts in computer networks such as IPv6 networks is presented where hosts transmit router solicitations including information identifying a current...
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7561866 |
RFID tags with power rectifiers that have bias
A system and method for generating a rectified signal in a RFID tag. An alternating signal is received by the RFID tag, and a first phase of the alternating signal is coupled to a gate and to a...
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7555263 |
Adaptive radio transceiver
An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a...
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7551909 |
CMOS transceiver with dual current path VCO
A dual current path voltage controlled oscillator exhibits both the seamless frequency acquisition and uniform VCO gain reduction while preserving an original operating range and phase locked loop...
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7551901 |
Linear high powered integrated circuit amplifier
A linear high powered integrated circuit amplifier includes a plurality of power amplifiers, balanced integrated circuit coupling, and a combining circuit. The balanced integrated circuit coupling...
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7548734 |
Multi-band RF receiver
A multi-band receiver is disclosed. The multi-band receiver includes a low-noise amplifier (LNA) and a mixer. The LNA includes a switched receiving circuit, a loading circuit, and a switching...
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7539471 |
Method and apparatus to provide variable gain in a radio receiver front end
An RF receiver front end includes a variable gain low noise amplifier and/or a variable gain mixer to provide gain variability in the receiver. This gain variability may be used during, for...
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7538741 |
Impedance matched passive radio frequency transmit/receive switch
A Radio Frequency (RF) structure services an antenna having a characteristic impedance and includes a differential Power Amplifier (PA), a differential Low Noise Amplifier (LNA), and a balun...
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7536166 |
Monolithically integrated circuit
A monolithically integrated circuit, particularly an integrated circuit for radio frequency power applications, has a transistor ( 11; 51 ), preferably a power LDMOS transistor, and a spiral...
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7536165 |
Offset correction for down-conversion mixers
A direct conversion receiver includes a detector that provides a measure of bias offset that is caused by component mismatches in the direct conversion mixer, and a corrective network that reduces...
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7532055 |
CMOS-based receiver for communications applications
A receiver and receiver front end having multiple independent differential inputs, multiple independent differential low-noise amplifiers, and two sets of double-balanced IQ mixers. The...
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7529532 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Switch circuit and method of switching radio frequency signals
A novel RF switch circuit and method for switching RF signals is described. The RF switch circuit is fabricated in a silicon-on-insulator (SOI) technology. The RF switch includes pairs of switching...
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7529529 |
Low noise, high-linearity RF front end receiver
An architecture for a receiver of a wireless device having a Low Noise Amplifier (LNA) transconductor to receive a signal from an antenna, a mixer meshed with the LNA transconductor, and an...
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7526245 |
Method and system for single chip satellite set-top box system
Certain embodiments of the invention may be found in an single chip satellite set-top box solution that comprises demodulation, decoding and audio/video display functions integrated within a single...
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7522902 |
Adaptive DC offset compensation apparatus and method thereof
Provided are a direct current (DC) offset compensation apparatus and a method thereof. A DC offset compensation apparatus comprises an offset detection block detecting a DC offset, an offset...
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7521981 |
Mixer with carrier leakage calibration
A mixer circuit. The mixer circuit comprises a double-balanced mixer and a carrier-leakage calibration cell. The double-balanced mixer has first and second input pairs whereby the first input pair...
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7519387 |
Apparatus and method for wireless coupling of integrated circuit chips
In order to overcome the limitation of the integrated circuit chip inter-connectability resulting from the physical dimensions of the leads, a radio frequency transmitter and/or a radio frequency...
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7519335 |
Digital modulation signal mixer
The present invention includes a mixer circuit integrating a voltage-to-currrent conversion in the same stage. A mixer device 20 of a transmission system comprises a pair of transistors 41 and ...
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7519334 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Multi-mode I/O circuitry supporting low interference signaling schemes for high speed digital interfaces
A multi-mode I/O circuit or cell ( 10 ) is provided for transmitting and receiving data between ICs, where each IC contains at least one of the I/O circuits. Each data link includes transmitter...
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7515891 |
Programmable gain amplifier (PGA) with AGC in receiver section
A method and apparatus for dynamically controlling a programmable gain amplifier (PGA) to provide a plurality of gain steps thereby providing automatic gain control (AGC) in a receiver intermediate...
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7515879 |
Radio frequency circuit module
An RF circuit module, in which a power amplifier and a transceiver are united, with reduced interference between its electronic circuit blocks, downsized and still having high performance, and with...
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7514981 |
Mixer circuit
A mixer in a smaller signal differential model includes a load circuit, a switch quad, and a transconductor. The switch quad further including a first current path and a second current path is...
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7512395 |
Receiver and integrated AM-FM/IQ demodulators for gigabit-rate data detection
This disclosure addresses providing gigabit-rate data transmission over wireless radio links, using carrier frequencies in the millimeter-wave range (>30 GHz). More specifically, a circuit for...
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7512394 |
Wideband up-conversion mixer
An up-conversion mixer includes a first and a second hybrid couplers and a first and a second traveling-wave mixers is disclosed. The first hybrid coupler receives an input intermediate frequency...
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7511557 |
Quadrature mixer circuit and RF communication semiconductor integrated circuit
A quadrature mixer circuit and an RF communication semiconductor integrated circuit capable of suppressing variations in secondary distortion while reducing the current consumption are provided. In...
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7509112 |
Wideband image rejection mixer
An image rejection mixer including a first and a second hybrid couplers and a first and a second traveling-wave mixers is disclosed. The first hybrid coupler divides an input radio frequency (RF)...
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7509111 |
Integrated circuit having a mixer circuit
Integrated circuit including a mixer circuit, which has a first circuit section, a second circuit section, and a transformer. The first circuit section has two radiofrequency terminals. The second...
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