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| Number | Title | Issue Date |
| 8174303 | Level shifter with output spike reduction A level shifter, or method, producing a final output from a driver supplied by a high-side source driver providing VDD or common, and a low-side source driver providing common or VSS. A delay is introduced to prevent a source driver output at common from beginning t... | 05/08/2012 |
| 8143935 | Circuit and method for controlling charge injection in radio frequency switches A circuit and method for controlling charge injection in a circuit are disclosed. In one embodiment, the circuit and method are employed in a semiconductor-on-insulator (SOI) Radio Frequency (RF) switch. In one embodiment, an SOI RF switch comprises a plurality of s... | 03/27/2012 |
| 8131251 | Integrated RF front end with stacked transistor switch 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... | 03/06/2012 |
| 8129787 | Method and apparatus for use in improving linearity of MOSFETs using an accumulated charge sink A method and apparatus for use in improving the linearity characteristics of MOSFET devices using an accumulated charge sink (ACS) are disclosed. The method and apparatus are adapted to remove, reduce, or otherwise control accumulated charge in SOI MOSFETs, thereby ... | 03/06/2012 |
| 8111104 | Biasing methods and devices for power amplifiers Biasing methods and devices for power amplifiers are described. The described methods and devices use the power amplifier output voltage to generate bias voltages. The bias voltages are obtained using rectifiers and voltage dividers. The described biasing methods an... | 02/07/2012 |
| 8106711 | Stacked pre-driver amplifier A stacked pre-driver stage and a power amplifier including the stacked pre-driver stage are described. The stacked pre-driver stage comprises stacked pre-drivers arranged in series between a supply voltage and a reference voltage. Each pre-driver includes a pre-driv... | 01/31/2012 |
| 8092237 | Electrical connection bar and adapted connection device An electrical coupling bar is described. The coupling bar includes an electrically insulating support with two parallel grooves and metallic strips engaged in the grooves. The metallic strips project out of the grooves with opposite interior faces delimiting a free ... | 01/10/2012 |
| 8081928 | Canceling harmonics in semiconductor RF switches An RF switching circuit adapted to cancel selected harmonic signals. An unwanted harmonic signal Sh1 at a selected harmonic frequency Fsh of an operating frequency Fo exists in a signal Si conducted by the switching circuit, possibly produced by the switching... | 12/20/2011 |
| 7961052 | RF power amplifier integrated circuit and unit cell A novel RF power amplifier integrated circuit (PA IC), unit cell, and method for amplifying RF signals are disclosed. One embodiment of a PA IC includes at least two linear arrays comprising transistor device units, and at least one linear array comprising capacitor... | 06/14/2011 |
| 7960772 | Tuning capacitance to enhance FET stack voltage withstand An RF switch to controllably withstand an applied RF voltage Vsw, or a method of fabricating such a switch, which includes a string of series-connected constituent FETs with a node of the string between each pair of adjacent FETs. The method includes controlling cap... | 06/14/2011 |
| 7937062 | Integrated RF front end with stacked transistor switch 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... | 05/03/2011 |
| 7910993 | Method and apparatus for use in improving linearity of MOSFET's using an accumulated charge sink A method and apparatus for use in improving the linearity characteristics of MOSFET devices using an accumulated charge sink (ACS) are disclosed. The method and apparatus are adapted to remove, reduce, or otherwise control accumulated charge in SOI MOSFETs, thereby ... | 03/22/2011 |
| 7890891 | Method and apparatus improving gate oxide reliability by controlling accumulated charge A method and apparatus are disclosed for use in improving the gate oxide reliability of semiconductor-on-insulator (SOI) metal-oxide-silicon field effect transistor (MOSFET) devices using accumulated charge control (ACC) techniques. The method and apparatus are adap... | 02/15/2011 |
| 7872533 | Leakage current reduction in a power regulator A regulator with decreased leakage and low loss for a power amplifier is described. Switching circuitry is used to connect the regulator input bias to a bias control voltage when the power amplifier is to be operated in an on condition or to a voltage generator when... | 01/18/2011 |
| 7871276 | Electrical connection bar and adapted connection device An electrical coupling bar is described. The coupling bar includes an electrically insulating support with two parallel grooves and metallic strips engaged in the grooves. The metallic strips project out of the grooves with opposite interior faces delimiting a free ... | 01/18/2011 |
| 7860499 | Switch circuit and method of switching radio frequency signals An RF switch circuit and method for switching RF signals that may be fabricated using common integrated circuit materials such as silicon, particularly using insulating substrate technologies. The RF switch includes switching and shunting transistor groupings to alt... | 12/28/2010 |
| 7796969 | Symmetrically and asymmetrically stacked transistor group RF switch A silicon-on-insulator (SOI) RF switch adapted for improved power handling capability using a reduced number of transistors is described. In one embodiment, an RF switch includes pairs of switching and shunting stacked transistor groupings to selectively couple RF s... | 09/14/2010 |
| 7795968 | Power ranging transmit RF power amplifier An RF PA operable in two or more selectable power ranges is disclosed. Switches configure the circuit for each range such that an amplifier device corresponding to the range provides final amplification, and all lower power amplifier devices also amplify the signal.... | 09/14/2010 |
| 7719343 | Low noise charge pump method and apparatus A charge pump method and apparatus is described having various aspects. Noise injection from a charge pump to other circuits may be reduced by limiting both positive and negative clock transition rates, as well as by limiting drive currents within clock generator dr... | 05/18/2010 |
| 7619462 | 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)... | 11/17/2009 |
| 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 and shunting transistor groupings used to alternatively couple RF in... | 11/03/2009 |
| 7590094 | Tristate requests for flexible packet retransmission Extending acknowledgement messages from two states to at least three states is described, whereby such messages constitute a packet quality indication (PQI) reflecting quality or usability of the received signal. In an HARQ system, a transmitting station can flexibl... | 09/15/2009 |
| 7586162 | High-value integrated resistor and method of making A high value resistive device in an integrated circuit is disclosed, including a pair of substantially similar resistor segments each having an elongated semiconductor channel of e.g. silicon, lightly doped as would be appropriate for a low-threshold depletion mode ... | 09/08/2009 |
| 7567536 | Active acknowledgment source selection A wireless communication mobile station (MS or UE) evaluates and categorizes an expected effectiveness of base stations (BSs or Node-Bs) in its Active Set for receiving uplink data, and instructs at least the less effective BSs to suppress some or all acknowledgment... | 07/28/2009 |
| 7564828 | Power-efficient signaling for asymmetric multi-carrier communications A method and system for reducing transmission power when signaling in groups. For a group of identically-sized signals a majority value can be determined. The majority value may be transmitted as an additional signal, and all indications of the group that match the ... | 07/21/2009 |
| 7532483 | Mounting integrated circuit dies for high frequency signal isolation A method of connecting signal lines between an integrated circuit (IC) die and a carrier or external circuit, and corresponding apparatus. Techniques for adjusting magnetic coupling between terminated signal lines include splitting a return path for termination curr... | 05/12/2009 |
| 7529532 | 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 and shunting transistor groupings used to alternatively couple RF in... | 05/05/2009 |
| 7486643 | Legacy-compatible signaling extension method for broadcast/multicast service indications A method of extending, for enabled stations, the number of information states conveyed by a signal employed by legacy (non-enabled) stations. The additional information states may convey a Broadcast/Multicast Service (BCMCS) Indication by means of tristate modulatio... | 02/03/2009 |
| 7460852 | Switch circuit and method of switching radio frequency signals An RF switch circuit and method for switching RF signals that may be fabricated using common integrated circuit materials such as silicon, particularly using insulating substrate technologies. The RF switch includes switching and shunting transistor groupings to alt... | 12/02/2008 |
| 7450556 | Method and apparatus estimating cell interference and noise for CDMA packet data channels A method and apparatus for communicating data signals using a spread spectrum cellular network, the cellular network including a plurality of base stations coupled to the cellular network the mobile unit assigned to one of the plurality of base stations. The method ... | 11/11/2008 |
| 7450549 | Pilot signal enhancements for a wireless communication system In a method and apparatus suitable to convey timely information for facilitating accurate reception of transmitted data, a pilot signal is modulated to convey information. The information may facilitate efficient interpretation of an associated traffic signal. Modul... | 11/11/2008 |
| 7433416 | Method and apparatus for generating transmit adaptive antenna weights with nulling using binary gradient feedback A novel method and apparatus for generating transmit adaptive antenna weights with nulling using binary gradient feedback is disclosed. The method and apparatus of the present invention allows a communication system to provide adequate power to a desired receiver an... | 10/07/2008 |
| 7359365 | Hybrid CDM/TDM signaling for packet acknowledgment method and apparatus A common signaling channel (CSC) conveys signaling information units (SIUs) from a base station (BS) to each of a multiplicity (e.g., 1200) of different mobile stations (MSs). Implicit correspondence between particular CSC and data frames is facilitated by basing CS... | 04/15/2008 |
| 7353039 | Power control of plural packet data control channels A method and apparatus for enabling more efficient use of plural packet data control channels (PDCCHs) that are associated with a common block of one or more packet data channels in a cellular communication system capable of high-speed data communications. Mobile st... | 04/01/2008 |
| 7340664 | Single engine turbo decoder with single frame size buffer for interleaving/deinterleaving A method and apparatus for decoding and de-interleaving a received encoded and interleaved signal, the method employing and the apparatus including a single decoder coupled to a common buffer, the common buffer size equal to a frame of the received signal and the me... | 03/04/2008 |
| 7317917 | Mobile station connection management utilizing suitable parameter information A method and apparatus managing a list of base stations (“BSs”) for which a mobile station (“MS”) can establish an optimal communications channel are disclosed. In accordance with the teachings disclosed herein, a MS acquires suitable parameter information (... | 01/08/2008 |
| 7248120 | Stacked transistor method and apparatus A method and apparatus is described for controlling conduction between two nodes of an integrated circuit via a stack of FETs of common polarity, coupled in series. In an RF Power Amplifier (PA) having appropriate output filtering, or in a quad mixer, stacks of two ... | 07/24/2007 |
| 7236972 | Identifier vocabulary data access method and system A method of organizing, managing, and providing interactive access to data in a database is disclosed, along with a program and a system for implementing the method. Associations between each data Item and at least one ItemSelector are established and stored. A pred... | 06/26/2007 |
| 7236538 | Method and apparatus for improving transmit antenna weight tracking using channel correlations in a wireless communication system A novel method and apparatus for improving transmit antenna weight tracking using channel vector element to element correlations in a wireless communication system is disclosed. The present channel autocorrelation tracking technique utilizes the observation that tra... | 06/26/2007 |
| 7210434 | Hydraulic cam for variable timing/displacement valve train A hydraulic fluid cam providing variable valve actuation in an engine is disclosed. In one embodiment, the hydraulic fluid cam is adapted to vary valve timing while holding valve displacement constant. In another embodiment, the hydraulic fluid cam is adapted to var... | 05/01/2007 |
