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9042855 Baseband filter calibration methods and systems  
Devices and methods capable of correcting for distortion are disclosed. For example, a method for compensating for non-idealities in a frequency-conversion circuit having a high-frequency input...
9037106 Baseband harmonic rejection circuit  
A circuit for baseband harmonic rejection includes multiple transconductance cells coupled to one another at outputs of the transconductance cells and configured to receive down-converted signals...
9014124 Radio frequency (RF) sampling apparatus with arrays of time interleaved samplers and scenario based dynamic resource allocation  
A wireless transmit/receive unit (WTRU) is described. The WTRU includes a front-end unit (FEU), a signal processing unit (SPU), and a resource management unit (RMU). The FEU receives a radio...
9014651 Interference cancellation in multi-mode radio access technology devices  
Embodiments of the present disclosure provide a novel multi-mode platform architecture with means for reducing the interference due to both out-of-band (OOB) emissions and inter-modulation...
9007131 Integrated circuit with calibrated pulling effect correction  
A frequency-control circuit includes a phase frequency detector configured to receive a reference frequency signal and generate an output detection signal. The phase frequency detector can be...
9002310 IP2 calibration methods and techniques  
Some embodiments of the present disclosure relate to improved techniques for performing IP2 calibration in receivers having two complementary data paths (e.g., i-data path and q-data path). In...
8995944 Radio frequency switch for suppressing intermodulation  
A radio frequency (RF) switch adapted to reduce third order intermodulation (IM3) products generated as RF signals propagate through the RF switch is disclosed. The RF switch includes N...
8976847 Communications system and method for the adaptation of transmission parameters on the basis of reliability information of reconstructed data  
A communications system provides a first communications device, which is connected via a bidirectional transmission channel to a second communications device, wherein the communications devices...
8977223 Two stage radio frequency interference cancellation system and method  
A radio frequency receiver subject to a large in-band interferor employs active cancellation with coarse and at least one cancellation signals, each with a respective radio frequency combiner, in...
8958766 Electronic device comprising an operating mode switching unit  
An electronic appliance comprising an electrical circuit and an operating mode switching unit which can be awakened out of a sleep state into a working state in which the current consumption of...
8934634 Stereo signal processing circuit  
A noise level of an output signal is maintained low. An adjacent interference detecting unit compares a signal level of a wide band signal which is a desired station signal of a relatively wide...
8917792 Method and apparatus for the cancellation of intermodulation and harmonic distortion in a baseband receiver  
A method (600) and apparatus (200) cancel odd-order distortion signals. Desensitization can be determined (610) in a received signal caused by odd-order harmonic distortion occurring from at least...
8897735 Self-correlation receiver and transceiver including the same  
Disclosed is a self-correlation receiver of a transceiver in which a transmitter shares an antenna with a receiver. The self-correlation receiver includes: a clamper which receives a received...
8890619 PIM compensation in a receiver  
The present disclosure relates to compensation for Passive Intermodulation (PIM) distortion in a receiver. In one embodiment, a main receiver receives a radio frequency receive signal and outputs...
8891346 Data transmission circuit and data transmission/reception system with reduced jitter  
A data transmission/reception system includes a data transmission circuit and a data reception circuit. The data transmission circuit includes a pattern detection unit configured to detect a...
8880017 Active resistive summer for a transformer hybrid  
A system includes a transceiver configured to receive a composite signal. The composite signal is a composite of a transmit signal and a receive signal. A replica transmitter is configured to...
8874153 Method and apparatus for reduction of intermodulation products  
Interference to a received signal is reduced in a wireless network, the interference comprising intermodulation products of at least a first signal and a second signal. Delayed interference...
8867650 Apparatus and method for cross clock domain interference cancellation  
An apparatus and method for cross clock domain interference cancellation is provided to a communication system which includes a transmitter operated in a first clock domain and a receiver operated...
8862087 Reciprocal mixing noise cancellation in the presence of a modulated blocker  
A method for reciprocal-mixing noise cancellation may include receiving, from a first mixer, a first signal comprising a wanted signal at a first frequency and a modulated signal at a second...
8831548 System and method for radio signal reconstruction using signal processor  
A waveform reconstruction circuit receives an rf signal from an antenna, digitizes it, and then generates an undistorted reconstructed waveform. The reconstructed waveform can then be...
8787861 Method and apparatus for reducing echo and crosstalk in a communication system  
In some implementations, an apparatus includes an echo canceller that generates an echo interference compensation signal that compensates for an echo interference signal in a communication signal,...
8774747 Radio frequency receiver  
A radio frequency receiver of the present invention removes out-of-band jamming signals and interference signals without SAW filters. The radio frequency receiver includes: a low noise amplifier...
8761709 Controlling a receiver  
A receiver 650 operates in close proximity to at least one other component 610, 611, 612 causing interferences in signals received by the receiver 650. It is determined (steps 2002; 2003) whether...
8718588 Signal processing circuit having mixer units using oscillation signals with different phases and frequency-selective combining block for frequency-selectively combining outputs of mixer units and related method thereof  
A signal processing circuit is used for generating a signal output by processing a signal input, and includes a first mixer unit, a second mixer unit, and a frequency-selective combining block....
8706070 RF system for reducing intermodulation (IM) products  
An RF system for reducing intermodulation (IM) products is disclosed. The RF system includes a first nonlinear element and a second nonlinear element, wherein the second nonlinear element...
8687645 Wireless communications device providing temperature-compensated clock correction features and related methods  
A wireless communications device may include a portable housing and a temperature-compensated clock circuit carried by the portable housing. The device may further include a wireless receiver...
8681897 Dynamic digital communication system control  
Control of a digital communication system having a plurality of communication lines on which signals are transmitted and received is implemented using a variety of methods and systems. According...
8682275 Apparatus and methods for reducing interference in radio-frequency apparatus  
A converter in a radio-frequency (RF) apparatus includes a feedback circuitry. The feedback circuitry has a shielded input and a shielded output. The shielded input and the shielded output of the...
8666325 Polar feedback receiver for modulator  
This disclosure relates to linearization in polar modulators of wireless communication devices, to attain linear amplification and high power efficiency during transmission.
8655297 Nonlinear distortion compensating receiver and nonlinear distortion compensation method  
Disclosed are a nonlinear distortion compensating receiver and nonlinear distortion compensation method, wherein nonlinear distortion is reduced with a simple circuit configuration. A correction...
8644785 Filtering using impedance translator  
This disclosure relates to low noise amplifiers (LNAs) and more particularly to LNAs integrated on integrated circuit (IC) chips along with radio frequency (RF) amplifiers. In one implementation,...
8634793 IP2 calibration measurement and signal generation  
A radio frequency receiver on an integrated circuit (RFIC) includes an oscillator circuit, which generates a radio frequency (RF) oscillatory signal having a predetermined frequency that is...
8634794 Multi-user interference cancellation in a single-carrier radio receiver  
A method, apparatus, and radio receiver system for canceling multi-user interference in a single-carrier radio communication system. A front-end receiver such as a RAKE receiver receives a radio...
8630685 Method and apparatus for providing sidetone feedback notification to a user of a communication device with multiple microphones  
A communication device including multiple microphones is provided. The communication device includes at least two microphones. The communication device further includes a sidetone feedback...
8626082 Polar feedback receiver for modulator  
This disclosure relates to linearization in polar modulators of wireless communication devices and associated methods, to attain linear amplification and high power efficiency during transmission.
8594575 Shifted channel characteristics for mitigating co-channel interference  
Methods and apparatuses for minimizing co-channel interference in communications systems are disclosed. A method in accordance with the present invention comprises shifting a characteristic of the...
8565418 Method, device and system for extending channels  
The present invention provides a method, a device and a system for extending channels, and belongs to the field of communications technologies. The method includes: generating a non-cascade...
8532039 Method for a radio frequency (RF) sampling apparatus with arrays of time interleaved samplers and scenario based dynamic resource allocation  
A method and apparatus for dynamic resource allocation of an RF sampling system based on a signal quality measurement determined by generating a plurality of time-interleaved samples from a...
8531937 Channel sounding for improved system performance  
A transmitter generates and transmits a low rate signal to its intended receiver. Upon receiving the low rate signal, the intended receiver generates and transmits a channel sounding response...
8521113 Methods and apparatus for predicting a channel quality indicator in a communication system  
Disclosed are methods and apparatus for predicting a channel quality indicator in a communication system, and in particular a delayed receiver. A disclosed method for determining the predictive...
8509719 Radio communication terminal and reception control method  
In a control of receiving service information, a controller in a radio communication terminal (AT) controls a communication section to receive broadcast data continuously for one cycle while a...
8503961 Active resistive summer for a transformer hybrid  
A system includes a transceiver configured to receive a composite signal. The composite signal is a composite of a transmit signal and a receive signal. A replica transmitter is configured to...
8467307 Signal quality determination in cable networks  
A method of determining signal quality in a cable network comprises the steps of: providing a network model (1) comprising an interconnection model (2) and component models (3), providing an input...
8457584 Systems and methods to attenuate intermodulation interference  
The present invention is directed to systems and method for attenuating intermodulation interference. In particular, methods and systems to attenuate intermodulation interference contained within...
8457568 System and method for processing a received signal  
In a method for processing a signal received by a receiver, at a first wireless receiver (20, 62) a first signal (x(t), x1(t)) comprising first and second signal components is received. The first...
8406425 Method and apparatus for minimizing co-channel interference  
An approach is provided for minimizing co-channel interference in a communication system is disclosed. A header of a first frame is scrambled based on a first unique word. A header of a second...
8401509 Two stage radio frequency interference cancellation system and method  
A radio frequency receiver subject to a large in-band interferor employs active cancellation with coarse and at least one cancellation signals, each with a respective radio frequency combiner, in...
8391818 Second-order distortion correcting receiver and second-order distortion correcting method  
A second-order distortion correcting receiver and a second-order distortion correcting method, wherein second-order inter-modulation distortion can be cancelled with high precision and with a...
8385872 Linear transconductor for RF communications  
The present patent application comprises a linear transconductor having at least one input and at least one output, comprising a differential amplifier having a plurality of transistors and a...
8369864 Inter-sector macrodiversity interference cancellation and scheduling  
The present invention provides a method for interference cancellation in a wireless communication system. One embodiment of a method includes accessing information indicative of one or more first...

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