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Telecommunications > Receiver Or Analog Modulated Signal Frequency Converter > Frequency Modifying Or Conversion > Particular Frequency Conversion Structure Or Circuitry > Transistor Or Integrated Circuit Transistor Or Integrated CircuitTransistor Or Integrated Circuit patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.03/01/07 - 20070049237 - Semiconductor integrated circuit device and high frequency power amplifier module Switching characteristics in an SPDT switch are improved to reduce the rise delay in a low power slot following after a high power slot. Control terminals of an SPDT switch are respectively provided with backflow prevention circuits. The backflow prevention circuit is configured to have two transistors and a diode. ... 02/08/07 - 20070032216 - Low noise amplifier (lna) gain switch circuit A circuit is formed to steer current in and out of an inductive load in a manner that enables an amplifier to provide a plurality of gain steps without modifying an LC time constant for the circuit and, therefore, without modifying the tuning or frequency of oscillation for the circuit. ... 02/01/07 - 20070026837 - Mimo radio interfaces A receiver front end includes a plurality of in-phase and quadrature phase receive processing blocks operable at first and second frequency bands and further includes a plurality of filtering and amplification blocks disposed within a corresponding ingoing signal path, a plurality of received signal strength indicator (RSSI) blocks coupled to ... 02/01/07 - 20070026836 - Method and apparatus for selectively blocking radio frequency (rf) signals in a radio frequency (rf) switching circuit An RF switching circuit that incorporates a film bulk acoustic resonator (FBAR) device and one or more capacitors that are used to vary the capacitance of the FBAR device to change the frequency range that is blocked by the FBAR device. When the RF switching circuit is in a first ... 01/04/07 - 20070004372 - Cmos wireless transceiver with programmable characteristics A monolithic radio integrated circuit includes a substrate, a set of one or more analog subcircuits on the substrate, a programmable bias current supply on the substrate coupled to the set to provide bias currents to the analog subcircuits of the set including programmable bias currents to one or more ... 12/28/06 - 20060293019 - 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 first transponder circuitry configured to transmit and receive radio frequency signals, wherein the integrated circuit die is void of external electrical connections for anything ... 12/07/06 - 20060276159 - Low noise amplifier with constant input impedance A low noise amplifier includes an input transistor, an inductor, and a current sink. The input transistor includes a gate, a drain, and a source, wherein the gate of the input transistor is operably coupled to receive an input radio frequency (RF) signal. The inductor includes a first node and ... 12/07/06 - 20060276158 - Radio frequency circuit for multi-mode operation In a radio frequency circuit for multi-mode operation on which multiple transceivers complying with multiple communication systems are disposed, signal interference between circuits is reduced. The PA 222, and the output matching networks 223a and 223b of GSM system, which are circuits independent of the circuit operation of W-CDMA, are ... 12/07/06 - 20060276157 - Apparatus and methods for packaging antennas with integrated circuit chips for millimeter wave applications Apparatus and methods are provided for integrally packaging semiconductor IC (integrated circuit) chips and antenna devices which are integrally constructed from package frame structures (e.g., lead frame, package carrier, package core, etc.), to thereby form compact integrated radio/wireless communications systems for millimeter wave applications. ... 11/30/06 - 20060270377 - Transformer-based multi-band rf front-end architecture An apparatus and method for allowing two different signal paths to be coupled to a multi-tap transformer balun. The multi-tap transformer has a first port, which is coupled to a single antenna, and two or more differential secondary ports. Each port has one or more taps, which are optimized separately ... 11/16/06 - 20060258319 - Integrated wide bandwidth attenuating-and-amplifying circuit An attenuating-and-amplifying circuit and method for producing a voltage-adjusted output signal of an input signal uses a voltage divider and a number of switchable amplifier units connected to the voltage divider to adjust the gain or attenuation of the input signal. The voltage divider includes a number of tapping nodes, ... 11/09/06 - 20060252402 - Radio frequency integrated circuit with noise immunity border An integrated circuit includes an analog module, digital circuitry, and a border section. The analog module is susceptible to noise and is on a substrate of the integrated circuit. The digital circuitry generates the noise and is on the substrate. The border section is on the substrate and physically separates ... 10/19/06 - 20060234668 - Communication semiconductor integrated circuit The communication semiconductor integrated circuit includes serial-signal processing circuits having low-pass filters and variable gain amplifier circuits cascade-connected in series. The low-pass filters constituting the serial-signal processing circuit each include a variable capacitance circuit composed of capacitance elements and switching elements connected in series to the capacitance elements, respectively, and ... 10/19/06 - 20060234667 - High-frequency ic and gps receiver The high-frequency IC according to an embodiment of the invention includes a mixer down-converting the RF signal into an IF signal with a given center frequency lower than that of the RF signal, a first-order low-pass filter with a pass band set narrower than a bandwidth of the IF signal ... 10/05/06 - 20060223484 - Bipolar transistor and radio frequency amplifier circuit A bipolar transistor and a radio frequency amplifier circuit capable of preventing thermal runaway in the bipolar transistor without affecting the radio frequency amplifier circuit, which includes: a direct-current (DC) bias terminal to which a DC bias is supplied; a DC base electrode connected to the DC terminal; a radio ... 09/28/06 - 20060217102 - Cellular/wi-fi combination devices The specification describes an integrated passive device (IPD) designed to allow implementation of cellular RF and Wi-Fi RF in a single hand held device. To address the problem of RF interference a thin film RF high rejection bandpass filter is formed in an IPD implementation. The IPD implementation preferably uses ... 09/14/06 - 20060205380 - Signal interfacing techniques to simplify integrated circuit radio designs A signal interfacing technique for connecting signals between a signal processing device and a MIMO radio integrated circuit (IC) involving multiplexing two or more signals on a connection pin between the radio IC and a signal processing device. According to one technique, transmit and receive signals are multiplexed such that ... 09/07/06 - 20060199563 - Unpowered switch and bleeder circuit A novel RF switch for switching radio frequency (RF) signals is disclosed. The RF switch may comprise both enhancement and depletion mode field-effect transistors (E-FETs and D-FETs) implemented as a monolithic integrated circuit (IC) on a silicon-on-insulator (SOI) substrate. The disclosed RF switch, with a novel bleeder circuit, may be ... 09/07/06 - 20060199562 - 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 amplifier/filter meshed with the mixer to provide a baseband output signal. ... 08/31/06 - 20060194561 - Systems and methods for self-calibration A self-calibrating integrated circuit includes a processor having at least one analog function used with the processor; one or more sensors adapted to sense one or more environmental parameters of the at least one analog function; and a solid state memory being configured to store the one or more environmental ... 08/24/06 - 20060189294 - Wireless communication system within a system on a chip A communication system for transmitting data between cores embedded in an integrated circuit on a silicon chip. Communication system includes transmitter circuitry for wirelessly transmitting data between cores and receiver circuitry for wirelessly receiving the transmission of data from other cores. Both transmitter circuitry and receiver circuitry may include of ... 08/24/06 - 20060189293 - Direct conversion with variable amplitude lo signals Techniques to reduce LO leakage by controlling the amplitude of LO signal based on the level of output signal after the frequency conversion process. An LO generator receives a VCO signal and generates an LO signal having a variable amplitude and a frequency that is related to the frequency of ... 08/10/06 - 20060178126 - Diversity receiver system having a shared local oscillator source A technique includes fabricating receive paths of a diversity receiver on a monolithic semiconductor die. The technique includes fabricating a local oscillator source on the die to be shared in common with the receive paths of the diversity receiver. ... 08/03/06 - 20060172719 - Method and apparatus for inter-chip wireless communication In one embodiment, the disclosure relates to a method and apparatus for inter-chip wireless communication system. The system includes a first microprocessor having a plurality of non-contact ports and a first RF communication circuit integrated with the first microprocessor; a second microprocessor also having a plurality of non-contact ports and ... 07/20/06 - 20060160520 - Radio frequency switch A switch that selectively changes radio frequency signals includes at least three FETs, which are connected in series. The source electrodes or drain electrodes arranged at an intermediate stage have a width narrower than that of the source electrodes or the drain electrodes arranged at the initial and final stages. ... 07/13/06 - 20060154641 - Active inductors using bipolar silicon transistors An active inductor includes bipolar transistors T1, T2, T3 and TD (TD being arranged in diode), where T1's emitter is connected to an output port and to T2's collector. T2's base is connected to a first voltage line and between two connected capacitors. T2's emitter is connected to T3's collecter. ... 06/29/06 - 20060141979 - Radio frequency circuit with integrated on-chip radio frequency signal coupler A radio frequency (“RF”) circuit configured in accordance with an embodiment of the invention is fabricated on a substrate using integrated passive device (“IPD”) process technology. The RF circuit (which may be, for example, a harmonic filter) includes at least one RF signal line section and an integrated RF coupler ... 06/29/06 - 20060141978 - Compact radio frequency harmonic filter using integrated passive device technology A radio frequency (“RF”) harmonic filter circuit as disclosed herein is fabricated using integrated passive device (“IPD”) technology. The RF harmonic filter circuit is configured to provide second, third, and fourth harmonic rejection while providing good input and output impedance matching. The RF harmonic filter circuit employs only one IPD ... 06/15/06 - 20060128347 - Radio integrated circuit with integrated power amplifier A radio system includes a radio frequency (RF) integrated circuit (IC), a baseband digital signal processing (DSP) IC, and a serial digital interface coupling data there-between. In one embodiment of the invention, the RF IC has an input receiver to receive a serial digital transmission bit stream from a digital ... 06/15/06 - 20060128346 - Flexible circuit board, electronic circuit device, and mobile communication terminal The flexible circuit board according to the present invention includes a plurality of mounting portions which are mounted with electronic circuits respectively, a connector portion that performs signal transmission between the electronic circuit mounted on each of the mounting portions and the electronic circuit device, and coupling portions that couple ... 06/15/06 - 20060128345 - Rectifier circuit and rfid tag A rectifier circuit includes a first MOS transistor, a first capacitor configured to connect between a gate and a source of the first MOS transistor, and a switching circuit configured to supply a bias voltage to the first capacitor in response to a control signal. The high gain rectifier circuit ... 06/08/06 - 20060121875 - Wireless communication system A wireless communication system includes: a filter; and a semiconductor chip including a signal processing integrated circuit having an amplifier, wherein a main surface of the semiconductor chip is provided with a plurality of electrode terminals along an edge portion thereof; wherein the amplifier has a transistor including a control ... 06/08/06 - 20060121874 - Low-loss transmitter module A transmitter module of a wireless transmission system with at least one transmission path having a power amplifier disposed at the input side includes a low-pass filter disposed at the output side and an impedance converter disposed therebetween. The power amplifier and the low-pass filter are, thereby, disposed on the ... 06/01/06 - 20060116101 - Integrated circuit capable of balancing switch transitions A method according to one embodiment may include controlling, by an integrated circuit, a first plurality of switches to generate a first output signal having a first amplitude and a second amplitude and a second plurality of switches to generate a second output signal having a third amplitude and the ... 06/01/06 - 20060116100 - Integrated circuit capable of minimizing switch transitions A method according to one embodiment may include switching, by an integrated circuit, a plurality of switches to generate at least one output signal having a first amplitude and a second amplitude. The method according to this embodiment may also include controlling, by the integrated circuit, a conduction state of ... 05/18/06 - 20060105737 - Method and apparatus for integrating a surface acoustic wave filter and a transceiver A method and an apparatus for integrating a surface acoustic wave (SAW) filter and a transceiver are provided to solve the problem of having a large area of the prior-art integration of a SAW filter and a transceiver; wherein a device for integrating a SAW filter and a transceiver is ... 05/11/06 - 20060099927 - Integrated wireless transceiver and audio processor Circuits, methods, and apparatus incorporate both a wireless physical interface and audio processing unit on a single integrated circuit. The wireless physical interface may include a receiver, transmitter, or a complete transceiver. The audio processing unit is typically in communication with both the wireless interface and one or more wired ... 05/04/06 - 20060094395 - Local oscillator feedthrough cancellation scheme to remove rf and baseband offsets An scheme to provide local oscillator feedthrough offset cancellation to remove baseband and radio frequency coupled offsets. Two separate offset cancellation currents are injected at a driver which drives a baseband signal into a mixer to mix with a local oscillator signal. One offset cancellation current cancels a baseband local ... 05/04/06 - 20060094394 - High-frequency amplifier having simple circuit structure and television tuner using high-frequency amplifier A high-frequency amplifier includes first and second amplifying stages disposed in parallel for amplifying VHF/UHF television signals. The first amplifying stage includes a first FET and a second FET of a grounded-gate type connected in series between a common input terminal and a first output terminal to which a VHF-signal ... 05/04/06 - 20060094393 - High frequency module A high frequency module comprises: a switch circuit connected to two antenna terminals; a diplexer connected to two reception signal terminals and the switch circuit; and a diplexter connected to two transmission signal terminals and the switch circuit. Each of the diplexers incorporates two band-pass filters and a low-pass filter. ... 04/06/06 - 20060073804 - Semiconductor integrated circuit and a software radio device To realize a software radio processing with a reduced circuit area by hardware and software which can process transmission and reception, or synchronization and demodulation in time division. There are provided a circuit DRC that can dynamically change a configuration with a structure that can change the configuration at a ... 03/30/06 - 20060068748 - Communication semiconductor integrated circuit and radio communication system A direct upconversion system communication semiconductor integrated circuit includes a frequency converter circuit for up-converting a transmission signal and a notch filter located at a subsequent stage of the frequency converter circuit. The notch filter is served to cut off at least third-order harmonics of a local signal. ... 03/23/06 - 20060063506 - Radio frequency integrated circuit and ic module of the same A highly convenient radio frequency integrated circuit that can be used at a plurality of different frequency bands, and which can perform communications at the different frequency bands so that data at different frequency bands can be read and a restriction can be imposed on the reading and writing of ... 03/16/06 - 20060058000 - Integrated radio frequency module A radio frequency (RF) module includes a multilayer substrate having dielectric layers and metallization layers that include one or more circuit elements. The metallization layers are located between the dielectric layers. The RF module also includes a symmetric transmission input associated with the multilayer substrate, an RF element on the ... 03/02/06 - 20060046681 - High frequency wireless receiver circuits and methods Embodiments of the present invention include circuits for use in wireless receivers that provide wide band matching with improved gain and noise performance. In one embodiment, the present invention includes a wireless receiver comprising an antenna, a first transistor having a source coupled to the antenna, a second transistor having ... 02/16/06 - 20060035619 - Single chip lna and vco having similar resonant circuit topology and using same calibration signal to compensate for process variations In one aspect this invention provides a radio frequency receiver for coupling to an antenna. The receiver includes a downconversion mixer, an amplifier having an input coupled to the antenna and an output coupled to a first input of the mixer for providing a received frequency signal to the mixer ... 02/02/06 - 20060025102 - Integrated radio front-end module with embedded circuit elements A highly integrated radio front-end module. In one embodiment a semiconductor substrate is processed with various circuit components in the substrate, as well as interconnections for the various circuit components, embedding the circuit components into the substrate. One or more circuit components may be further connected with a separate integrated ... 01/26/06 - 20060019628 - Low flicker noise current-folded mixer The current-folded mixer of this invention comprises an input stage and a switching stage. The input stage receives a radio frequency input RF and generates a modulated bias current to the switching stage. The switching stage has a switching pair, connected to a common node, to receive an input signal ... 01/05/06 - 20060003730 - Single chip radio receiver with decoder and controllable baseband filter A single chip receiver is disclosed herein. The chip only requires an external antenna for operation. A decoder is formed on chip for performing logical operations on demodulated digital data. A baseband filter is controlled by external control signals to have one of a plurality of discrete frequency response bandwidths ... 01/05/06 - 20060003729 - Integrated low-if terrestrial audio broadcast receiver and associated method An integrated low-IF (low intermediate frequency) terrestrial broadcast receiver and associated method are disclosed that provide an advantageous and cost-efficient solution. The integrated receiver includes a mixer, local oscillator generation circuitry, low-IF conversion circuitry, and DSP circuitry. And the integrated receiver is particularly suited for small, portable devices and the ... 01/05/06 - 20060003728 - Ratiometric clock systems for integrated receivers and associated methods A ratiometric clock system for an integrated receiver and associated method are disclosed that provide an advantageous solution for combining digital signal processing (DSP) circuitry on the same integrated circuit as mixer and local oscillator (LO) generation circuitry. The generation circuitry generates an oscillation signal that is passed through a ... 12/29/05 - 20050287976 - Integrated rf front end A monolithic integrated circuit (IC), and method of manufacturing same, that includes all RF front end or transceiver elements for a portable communication device, including a power amplifier (PA), a matching, coupling and filtering network, and an antenna switch to couple the conditioned PA signal to an antenna. An output ... 12/08/05 - 20050272399 - Radio-frequency circuit module and radio communication apparatus An integrated-circuit element and passive components are mounted on a front face of a multilayer substrate. A capacitor constituting a crystal-oscillator circuit is disposed inside the multilayer substrate. A cavity is provided in a rear face of the multilayer substrate. A crystal oscillator constituting the crystal-oscillator circuit is accommodated in ... 11/17/05 - 20050255823 - Integrated circuit for processing data blocks received from a plurality of data sources An integrated circuit (IC) for processing data blocks received from a plurality of data sources. The IC includes at least one re-ordering function entity, higher protocol layers and an interface for receiving at least one copy of a successfully decoded data block from the data sources. The IC uses the ... 11/03/05 - 20050245226 - Resistive voltage-down regulator for integrated circuit receivers A receiver circuit is provided on an integrated circuit. The receiver circuit includes first and second power supply terminals, a ground supply terminal, a resistive element coupled between the first and second power supply terminals, and a receiver biased between the second power supply terminal and the ground supply terminal. ... 10/27/05 - 20050239431 - Transmission circuit, cmos semiconductor device, and design method thereof A transmission circuit, which transmits a differential signal having pulse time larger than a predetermined minimum pulse time, includes: a driving unit for feeding the differential signal as a potential difference between two transmission lines; a driven unit for operating on the basis of the differential signal by receiving the ... 10/20/05 - 20050233724 - Version-programmable circuit module A circuit module contains a sub-circuit that is capable of providing a level of performance dependent on the version number that is stored in a version number memory. The version number is passed to the sub-circuit from a write-protected memory to the version memory in the multiplex mode with normal ... 10/13/05 - 20050227665 - Wireless communications devices including circuit substrates with partially overlapping conductors thereon coupling power to/from power amplifier systems A wireless communications device can include a power amplifier that is configured to transmit information to a wireless communications network during a first time interval and configured to avoid transmitting information during a second time interval. A circuit substrate is coupled to the power amplifier and a power source is ... 10/13/05 - 20050227664 - Inline filter resistors A shorted resistive block formed in line with at least one trace of a plurality of a top metal layer includes a plurality of resistors with a removable shorting link coupled across the resistive block. The resistive block comprises one of a plurality of series coupled shorted resistors and a ... 10/06/05 - 20050221787 - Integrated radio frequency circuits A plurality of devices, such as devices that are utilized for implementing radio frequency applications, can be formed in the same substrate. Each of these devices may be formed over a triple well that includes at least one well capable of being biased. Each of the wells is coupled to ... 08/25/05 - 20050186934 - Semiconductor integrated circuit An object of the present invention is to provide a semiconductor integrated circuit that reduces the influence of noise from a digital circuit block on an analog circuit block, both the circuit blocks being integrated on the same semiconductor substrate. In the wiring that passes through near the analog circuit ... 07/28/05 - 20050164671 - Reducing active mixer flicker noise A mixer is disclosed that includes first and second transconductance modules that, in one embodiment, includes MOSFETs configured to receive a plurality of signals that are to be mixed and a selectively coupled auxiliary current source to inject an auxiliary current into the second transconductance module approximately at or near ... 06/23/05 - 20050136879 - Radio frequency integrated circuit having reduced receiver noise levels A radio frequency integrated circuit (RFIC) includes a digital to analog converter, an analog to digital converter, and a radio module. The digital to analog converter (DAC) is operably coupled to convert outbound symbols into outbound baseband signals, wherein the digital to analog converter is fabricated within a DAC portion ... 06/23/05 - 20050136878 - Radio frequency integrated circuit layout with noise immunity border An RFIC includes a baseband processing module, a digital to analog converter, an analog to digital converter, a radio module, and a border section. The border section is fabricated on the substrate, wherein the border section physically separates the radio module from the baseband processing module, the digital to analog ... 06/16/05 - 20050130620 - Segmented radio frequency electrode apparatus and method for uniformity control A segmented radio frequency (RF) powered electrode for use in plasma processing. The electrode includes a first electrode, a second electrode surrounding the first electrode, and a dielectric material interposed between the first electrode and the second electrode. The dielectric material electrically isolates the first electrode from the second electrode. ... 06/02/05 - 20050118979 - 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 circuit section has two reference oscillator terminals, an active mixer unit with a signal-amplifying unit, and two intermediate frequency terminals. The ... 06/02/05 - 20050118978 - Microwave filter distributed on circuit board of wireless communication product The present invention is to provide a microwave filter distributed on a circuit board of a wireless communication product, which comprises an input terminal, a resonant chamber of double frequencies, and an output terminal of the microwave filter directly distributed on the circuit board of the wireless communication product as ... ### FreshPatents.com Support |