| Patent Number |
Title Of Patent |
Date Issued |
| 7616713 |
System and method for forward and backward recursive computation |
November 10, 2009 |
| A system and method is provided for improved and efficient forward and backward recursive computations that may be used, for example, with turbo code decoding applications. The invention performs the forward computations using a full length of a sequence to be decoded and performs th |
| 7612617 |
Voltage-controlled oscillator gain calibration for two-point modulation in a phase-locked loop |
November 3, 2009 |
| A phase-locked loop (PLL) is arranged to receive high-pass data at a first input and low-pass data at a second input. A first digital input is coupled to a primary path through a digital-to-analog converter (DAC) and a second digital input is coupled to a feedback path of the PLL. The |
| 7605669 |
System and method for generating local oscillator (LO) signals for a quadrature mixer |
October 20, 2009 |
| A system for generating local oscillator (LO) signals for a quadrature mixer includes an oscillator configured to provide a reference frequency signal, at least one frequency divider configured to divide the reference frequency signal into three offset phase signals, a first summing circ |
| 7605651 |
Multimode amplifier for operation in linear and saturated modes |
October 20, 2009 |
| According to an exemplary embodiment, a multimode power amplifier configured to receive an RF input signal and provide an RF output signal in linear and saturated operating modes includes an output stage configured to receive a fixed supply voltage and to provide the RF output signal |
| 7602102 |
Bulk acoustic wave resonator with controlled thickness region having controlled electromechanica |
October 13, 2009 |
| According to an exemplary embodiment, a bulk acoustic wave (BAW) resonator includes a piezoelectric layer situated between upper and lower electrodes, where each of the upper and lower electrodes are a high density metal. The BAW resonator further includes a controlled thickness regi |
| 7593484 |
Radio frequency (RF) receiver with double loop integrated fast response automatic gain control ( |
September 22, 2009 |
| A radio frequency (RF) receiver device comprises a receiver system that receives an analog radio frequency signal and downconverts the analog radio frequency signal to a downconverted analog signal, the receiver system further including a peak signal detector configured to determine a |
| 7589592 |
System and method for pre-charging a current mirror |
September 15, 2009 |
| A system for pre-charging a current mirror includes a controller configured to provide a first current and an additional current to a current mirror to rapidly charge a capacitance associated with the current mirror based on a reference voltage. |
| 7586295 |
Voltage up-conversion circuit |
September 8, 2009 |
| According to one exemplary embodiment, a voltage up-conversion circuit includes a modulated voltage generator circuit, where the modulated voltage generator circuit is configured to receive an input voltage and generate a modulated voltage, and where the modulated voltage generator c |
| 7584370 |
Circuits, switch assemblies, and methods for power management in an interface that maintains res |
September 1, 2009 |
| A semiconductor network is interposed between first and second multiple-port interfaces each having high-voltage, intermediate-voltage and ground ports to form a switch assembly. The assembly includes a primary switch circuit, a support network, internal and external-port circuits an |
| 7583765 |
DC offset detection and cancellation in a receiver |
September 1, 2009 |
| A DC offset detection and cancellation system for a receiver is disclosed. The DC offset detection and cancellation system comprises a downconverter configured to downconvert a received signal to a baseband level signal, the downconverted signal having a first sampling rate, a filter sys |
| 7576614 |
Frequency independent control |
August 18, 2009 |
| A phase-locked loop (PLL) is disclosed. One embodiment, among others, includes a PLL that provides a control signal and a square root module configured to receive state information, the state information corresponding to tuning information, the square root module further configured t |
| 7576426 |
Wafer level package including a device wafer integrated with a passive component |
August 18, 2009 |
| According to an exemplary embodiment, a wafer level package includes a device wafer including at least one device wafer contact pad and a device, and where the at least one device wafer contact pad is electrically connected to the device. The wafer level package includes a first poly |
| 7572748 |
Materials comprising barium zirconate and methods for manufacturing thereof |
August 11, 2009 |
| A method for manufacturing barium zirconate particles includes providing a mixture of materials that includes barium, zirconium and a sintering aid, wherein the sintering aid includes at least one of barium tungstate, potassium niobate, tungsten oxide, barium molybdate, molybdenum oxide, |
| 7567122 |
Variable gain amplifiers systems and methods |
July 28, 2009 |
| A system for controlling gain in a polar loop is disclosed. Embodiments of the invention provide for a substantially constant gain tolerant of changes in supply voltage, ambient temperature, and/or manufacturing process. |
| 7565150 |
Reducing DSP schedule bottlenecks in a wireless communication system |
July 21, 2009 |
| In one embodiment, a method is provided of communicating in a wireless communication system. The method comprises (a) setting a decrement burst variable to be equal to a predetermined number representing a number of bursts of data from which to prematurely decode a USF codeword, (b) |
| 7557430 |
Semiconductor seal ring |
July 7, 2009 |
| An improved semiconductor seal ring and method therefore is described. The seal ring comprises a thick layer wherein at least a portion of the thick layer is removed from a singulation street prior to singulation, thereby avoiding damage to the thick layer during the singulation process. |
| 7554306 |
Low drop out voltage regulator circuit assembly |
June 30, 2009 |
| An integrated circuit assembly includes a voltage level generator, a level shifter, a bandgap reference generator and a voltage regulator. The voltage level generator generates output voltage level signals in response to a supply voltage. The level shifter receives the output voltage |
| 7550785 |
PHEMT structure having recessed ohmic contact and method for fabricating same |
June 23, 2009 |
| According to an exemplary embodiment, a PHEMT (pseudomorphic high electron mobility transistor) structure includes a conductive channel layer. The PHEMT structure further includes at least one doped layer situated over the conductive channel layer. The at least one doped layer can includ |
| 7548737 |
System and apparatus for a direct conversion receiver and transmitter |
June 16, 2009 |
| A system for transmitting and receiving data is provided. The system includes a direct-conversion receiver that receives a signal modulated on a carrier frequency signal. The direct-conversion receiver includes one or more subharmonic local oscillator mixers. A local oscillator is co |
| 7546100 |
System for generating amplitude matched 45 degree phase separated local oscillator signals |
June 9, 2009 |
| A system for generating amplitude matched 45 degree phase separated signals is disclosed. Embodiments of the system for generating amplitude matched 45 degree phase separated signals include a filter arrangement including a plurality of nodes, an adjustable element associated with ea |
| 7544612 |
Method and structure for reducing the effect of vertical steps in patterned layers in semiconduc |
June 9, 2009 |
| According to an exemplary embodiment, a method for fabricating a multilayer semiconductor structure includes forming first and second patterned segments, where a first patterned segment sidewall is separated from a second patterned segment sidewall by a first gap; forming a first con |
| 7542741 |
System and method for power mapping to compensate for power amplifier gain control variations |
June 2, 2009 |
| A system for compensating gain control variations in a power amplifier comprises a power control element configured to receive a power control signal and an instantaneous envelope power reference signal, an adder configured to combine the power control signal and the instantaneous en |
| 7538606 |
Constant bandwidth DC offset correction in an amplifier |
May 26, 2009 |
| According to one embodiment, a system for constant bandwidth DC offset correction in an amplifier includes a number of amplifier stages having an input and an output coupled together in series. The system for constant bandwidth DC offset correction further includes a number of DC off |
| 7535323 |
Bulk acoustic wave filter with reduced nonlinear signal distortion |
May 19, 2009 |
| A filter circuit includes at least one series resonator having a first terminal and a second terminal, where the first and second terminals of the at least one series resonator are coupled to an input and an output of the filter circuit, respectively. The filter circuit further includes |
| 7534290 |
Corrosion resistant thermal barrier coating material |
May 19, 2009 |
| According to one exemplary embodiment, a method for forming a corrosion resistant thermal barrier coating material includes steps of blending indium oxide with at least one hydrate forming oxide to form a mechanical mixture, heating the mechanical mixture to a sufficiently high tempe |
| 7526265 |
Method and system for receiver impairment estimation and correction |
April 28, 2009 |
| Embodiments of a receiver impairment estimation and correction system and method that can be implemented in a low intermediate frequency receiver system are disclosed. In one embodiment, among others, a method for operating a receiver is disclosed that comprises receiving a radio fre |
| 7515929 |
Receiver for a multimode radio |
April 7, 2009 |
| A receiver for a multi-mode wireless device is provided. The receiver has multiple analog RF front end modules, with each module supporting a different mode of operation. The receiver has a single digital backend module for generating a digital baseband signal. A controller selects one |
| 7515880 |
Variable gain frequency multiplier |
April 7, 2009 |
| A variable gain frequency multiplier comprises a multiplier circuit and a control circuit configured to receive a power control signal, the power control signal being proportional to a power output signal. |
| 7515665 |
GFSK/GMSK detector with enhanced performance in co-channel interference and AWGN channels |
April 7, 2009 |
| A detector for detecting a received signal according to a Gaussian shift keying ("GFSK/GMSK") modulation scheme. The detector may enhance a detection performance of the receiver while limiting one or more implementation impacts. An implementation impact may include an implementation |
| 7512393 |
Downconverting mixer |
March 31, 2009 |
| A downconverter is provided. The downconverter includes a I mixer and a Q mixer. Each mixer includes a transconductance stage and a mixer core stage. The outputs of the transconductance stages of the mixers are shorted together, and a resistors are arranged in series with an input of |
| 7512392 |
System for adaptively filtering a received signal in a wireless receiver |
March 31, 2009 |
| An adaptive band-pass filter for a wireless receiver comprises a band-pass filter associated with the receiver, the band-pass filter configured to selectively filter the received signal, and a switch responsive to a control signal, the switch configured to control the band-pass filter |
| 7512388 |
Multiband or multimode front end antenna switch |
March 31, 2009 |
| A multi-band communication device with a front end antenna switch module having a reduced number of control inputs is disclosed. Control over an antenna switch modules occurs via control inputs from a controller or processor to enable operation over multiple bands or under numerous d |
| 7502625 |
Integrated multi-band transceiver for use in mobile communication device |
March 10, 2009 |
| A multi-band communication device configured with a mobile communication device for voice or data communication over a cellular, satellite or other communication network and configured with an auxiliary communication system configured to receive and/or transmit an auxiliary communica |
| 7499682 |
Dual voltage regulator for a supply voltage controlled power amplifier in a closed power control |
March 3, 2009 |
| A supply voltage controlled power amplifier that comprises a power amplifier, a closed power control feedback loop configured to generate a power control signal, and a dual voltage regulator coupled to the power control feedback loop, the dual voltage regulator comprising a first reg |
| 7496339 |
Amplitude calibration element for an enhanced data rates for GSM evolution (EDGE) polar loop tra |
February 24, 2009 |
| An amplitude calibration element comprises a linear driver configured to receive the output of a modulator, the modulator output comprising a voltage signal having an amplitude modulated (AM) portion, a differential detector configured to receive an output of the linear driver and develo |
| 7493097 |
High dynamic range compact mixer output stage for a wireless receiver |
February 17, 2009 |
| A mixer is disclosed having an output stage with an amplifier or gain device configured in a feedback loop to maintain a virtual ground at the input to the gain device. The gain device provides significant dynamic range, gain, and the appropriate impedance matching to insure a low noise |
| 7493093 |
Switchable power level detector for multi-mode communication device |
February 17, 2009 |
| A method and apparatus for power detection in a multi-mode communication device configured for operation in different modes or frequency bands. A detector monitors the power level of an amplified outgoing signal. The detector may be configured with a switch and two or more samplers. |
| 7492209 |
High-frequency switching device with reduced harmonics |
February 17, 2009 |
| According to one exemplary embodiment, a low harmonic switching device includes a first switching block including a first multi-gate FET, where the first switching block is coupled to a first input and a shared output of the low harmonic switching device. A first capacitor is coupled |
| 7486134 |
High efficiency load insensitive power amplifier |
February 3, 2009 |
| An advanced balanced RF power amplifier circuit is provided. The RF power amplifier has a pair of RF amplification paths constructed to efficiently operate in a high-power mode. When instructed to operate in a low-power mode, one of the amplification paths is deactivated, and optionally, |
| 7483678 |
Single chip GSM/EDGE transceiver architecture with closed loop power control |
January 27, 2009 |
| A single chip GSM/EDGE transceiver comprises a fully differential receive chain, a subharmonic mixer in the receive chain, the subharmonic mixer configured to receive a radio frequency (RF) input signal and a local oscillator (LO) signal that is phase-shifted by a nominal 45 degrees, and |
| 7482868 |
Dual mode power amplifier |
January 27, 2009 |
| A power amplifier is configured to operate in a first gain mode and a second gain mode. A first power amplifier input stage has an input and an output. A second power amplifier input stage has an input and an output, where the output of the second power amplifier input stage is coupled t |
| 7480349 |
Low IF receiver systems and methods |
January 20, 2009 |
| Embodiments of a low intermediate frequency system and method are disclosed. In one embodiment, among others, a method for operating a receiver is disclosed that comprises receiving a radio frequency signal, downconverting the radio frequency signal to a downconverted signal comprisi |
| 7477101 |
Fast charge circuit for use in amplifiers |
January 13, 2009 |
| According to an exemplary embodiment, an amplification module includes a bias circuit coupled to an input of an amplifier, where the bias circuit is configured to charge the input of the amplifier to a final bias voltage. The amplification module further includes a fast charge circuit |
| 7471154 |
Bias circuit for maintaining high linearity at cutback power conditions |
December 30, 2008 |
| To improve operation during cutback power mode by reducing gain expansion, sections of a multi-section amplifier are selectively biased. During cutback power condition, fewer than all sections of the multi-section amplifier are biased. Selective biasing reduces power consumption and |
| 7454184 |
DC offset cancellation in a wireless receiver |
November 18, 2008 |
| A DC-offset cancellation system for a wireless receiver is disclosed. The DC-offset cancellation system comprises an amplifier and an impedance inverter configured to transform inductance applied to a received signal to a capacitance. |
| 7446612 |
Amplifier feedback and bias configuration |
November 4, 2008 |
| A wireless communication device output amplifier configured to reduce or eliminate out of band oscillations from voltage standing waves generated by antenna impedance mismatch reflection. The amplifier is configured with an input, output, and biasing node. The biasing node is configured |
| 7443246 |
Constant current biasing circuit for linear power amplifiers |
October 28, 2008 |
| A constant current bias approach that receives an input bias voltage and maintains a temperature independent constant current bias in a linear amplifier device. Integrated sense circuitry protects against unacceptable input voltages to guarantee bias stability. Fabrication in multipl |
| 7421256 |
Low noise switching voltage regulator |
September 2, 2008 |
| A low-noise switching voltage regulator for supplying a voltage to a radio frequency (RF) power amplifier is disclosed. In one embodiment, the invention can be conceptualized as a power amplifier supply circuit, comprising a pair of oppositely polarized semiconductor switches, and a |
| 7415264 |
Low noise filter for a wireless receiver |
August 19, 2008 |
| A low noise filter is arranged to receive an input signal from a downconverter. The low noise filter is constructed to block or cancel any DC offset in the input signal, as well as filter selected frequency components from the input signal. The low noise filter uses a shared capacito |
| 7414479 |
Automatic bias control circuit for reduced current consumption in a linear power amplifier |
August 19, 2008 |
| According to an exemplary embodiment, an amplification module includes a power amplifier configured to receive an RF input signal and provide an RF output signal. The amplification module further includes an autobias control circuit configured to receive and convert the RF output signal |
