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Patent Searching and Data


Matches 601 - 650 out of 5,034

Document Document Title
WO/2009/012630A1
A receiver and receiving method are used for multi-user interfere eliminating based on frequency domain equalization combined with time domain, the receiver receives the signals, performs frequency domain equalization processing on the r...  
WO/2009/008998A1
Systems and methods for adaptive intelligent noise suppression are provided. In exemplary embodiments, a primary acoustic signal is received. A speech distortion estimate is then determined based on the primary acoustic signal. The speec...  
WO/2008/016531A4
Neural networks provide efficient, robust and precise filtering techniques for compensating linear and non-linear distortion of an audio transducer such as a speaker, amplified broadcast antenna or perhaps a microphone. These techniques ...  
WO/2009/006092A1
A cooperative communication scheme is provided for a base station (BS) to communicate with a mobile station (MS) through a group of relay stations (RSs) The RSs serve the same target MS To ensure that reliable transmission exists between...  
WO/2008/152443A2
A technique that includes providing a buffer to receive data from a processor of a wireless device in response to an active mode of the processor and selectively coupling an input terminal of a filter to the buffer based on a status of t...  
WO/2008/064262A3
In accordance with one aspect of the disclosure, apparatus are provided. A filter is provided to receive from an antenna a receive signal of a given type and a low noise amplifier is provided to amplify the received signal. A translator ...  
WO/2008/152181A1
A digital broadband broadcast receiver is configured to receive bits transmitted in transmission symbols, such as orthogonal frequency division multiplexing (OFDM) symbols. The reliability of the received bits is scaled with a non-linear...  
WO/2008/016531A3
Neural networks provide efficient, robust and precise filtering techniques for compensating linear and non-linear distortion of an audio transducer such as a speaker, amplified broadcast antenna or perhaps a microphone. These techniques ...  
WO/2008/033641A3
The small array microphone apparatus comprises first and second omni- directional microphones, a microphone calibration unit and a directional microphone forming unit. The first and second omni-directional microphones respectively conver...  
WO/2008/144049A1
A method of signal processing includes receiving a distorted signal comprising a distorted component and an undistorted component, the distorted component being at least in part attributed to an exogenous signal, and performing lineariza...  
WO/2008/033639A3
A broadside small array microphone beamforming apparatus comprises first and second omni-directional microphones, a microphone calibration unit, and a directional microphone forming unit. The first and second omni-directional microphones...  
WO/2007/143580A3
At least one exemplary embodiment is directed to a system for monitoring a sound pressure level dose at an ear which includes an audio transducer adapted to be placed within an ear to receive sound at the ear. The audio transducer output...  
WO/2008/140931A1
A communication device (100) includes: (1) a wireless adapter (145) at which a wireless headset (150) is communicatively connected to the communication device and at which is received a first acoustic input that includes a speech input a...  
WO/2008/135908A1
A tuner is disclosed which overcomes a problem related to leakage currents within a tuner associated with increased miniaturisation. The tuner includes an oscillator and a cover. The cover includes a barrier region, typically in the form...  
WO/2008/137231A1
Methods and systems for a cab signal system are provided. The system includes at least one inductive pickup coil assembly, and a cab signal receiver electrically coupled to the at least one inductive pickup coil assembly. The receiver is...  
WO/2008/095167A3
At least one exemplary embodiment so directed to an earpiece (100). The earpiece can include an Ambient Sound Microphone (111) configured to capture ambient sound, an Ear Canal Microphone (123) configured to capture internal sound in the...  
WO/2007/117328A3
Methods (500, 800) and corresponding systems (100, 200, 300, 400, 900) for generating a pilot symbol (330) include providing an M-point parallel transform sequence that is a discrete Fourier transform of a CAZAC sequence (312, 504-508). ...  
WO/2008/127165A1
Method and arrangements for scheduling transmission resources in a first node in a cell comprised within a wireless communication network. The first node is arranged to communicate over a communication channel with at least one user equi...  
WO/2008/122103A1
Methods and apparatuses for detecting signals in a MIMO communication system include receiving symbols coded into pairs using a space-time code. Estimating a channel matrix that identifies the response between multiple transmit and recei...  
WO/2007/117525A3
A method and a receiver system for subcarrier-specific frequency offset correction including frequency offset estimation, updating and compensation. The method includes initial frequency offset estimation in time domain using packet prea...  
WO/2008/119960A1
A method of recovering data in a line signal which is predicted to be subjected to repetitive noise impulses, the line signal comprising a series of data frames, the method comprising the steps of: predicting a group comprising one or mo...  
WO/2008/121225A1
A fast accurate multi-channel frequency dependent scheme for analyzing noise in a signal processing system is described herein. Noise is decomposed within each channel into frequency bands and sub-band noise is propagated. To avoid the c...  
WO/2007/130578A3
A technique for processing received signals in multiple-antenna systems. Received signals from the different antennas (102) may be amplified by a Low Noise Amplifier (LNA, 104) and time- multiplexed by a switch (106) to form a single ana...  
WO/2007/005380A3
A charge/discharge control circuit (10) for controlling current through an input/output audio device includes a first voltage reference (47); a second voltage reference(16) and a waveform generation circuit(52) responsive to the first an...  
WO/2008/116153A1
A transmit signal second-order inter-modulation (IM2) canceller for a portable handset using a full duplex mode of operation (e.g., WCDMA) is used to controllably reduce IM2 introduced by a transmit signal that appears in a received sign...  
WO/2008/114370A1
When high frequency communication carrier current is used in communication with much information, radio wave is radiated from the transmission line to possibly cause a trouble in other electric apparatus or a damage to the health. When t...  
WO/2008/107511A1
In a digital broadband broadcast transmitter, digital data is time interleaved for transmission, and the time interleaved digital data is transmitted in a digital broadband broadcast transmission towards a plurality of receivers. A cellu...  
WO/2008/109329A1
A bi-directional interface circuit includes a transmitter portion, a receiver portion, a current source bias circuit, and a switch. When the interface circuit is transmitting data, the switch steers the bias current generated by the curr...  
WO/2007/130766A3
Reduction of noise in a device having a console with one or more microphones and a source of narrow band distributed noise located on the console is disclosed. A microphone signal containing a broad band distributed desired sound and nar...  
WO/2008/103773A1
Embodiments of cognitive radio technology can recover and utilize under-utilized portions of statically-allocated radio-frequency spectrum. A plurality of sensing methods can be employed. Transmission power control can be responsive to a...  
WO/2008/103771A1
Embodiments of cognitive radio technology can recover and utilize under-utilized portions of statically-allocated radio-frequency spectrum. A plurality of sensing methods can be employed. Transmission power control can be responsive to a...  
WO/2008/103468A1
Embodiments of cognitive radio technology can recover and utilize under-utilized portions of statically-allocated radio-frequency spectrum. A plurality of sensing methods can be employed. Transmission power control can be responsive to a...  
WO/2007/013900A3
Signals propagating on an aggressor communication channel can cause detrimental interference in a victim communication channel. A signal processing circuit (135)can generate an interference cancellation signal that, when applied to the v...  
WO/2008/079244A3
A noise reduction method is disclosed that uses numerical logic to estimate the value of the noise in a receive system and remove the noise. A surrogate probe value is selected and subtracted from an input signal and an iterative process...  
WO/2008/095167A2
At least one exemplary embodiment so directed to an earpiece (100). The earpiece can include an Ambient Sound Microphone (111) configured to capture ambient sound, an Ear Canal Microphone (123) configured to capture internal sound in the...  
WO/2008/094082A1
The present invention relates to an arrangement (10) for monitoring noise on a twisted pair cable adapted to transfer data comprising DSL signals with a given data symbol rate. It comprises or is adapted to communicate with spectrum dete...  
WO/2007/127369A3
A communications channel may radiate energy undesirably, for example in the form of electromagnetic radiation, when a communication signal transmits over the communications channel. Processing the signal before and after transmission on ...  
WO/2008/058059A3
The disclosure is directed to a receiver. The receiver includes an interference canceller configured to filter digital samples produced from a modulated signal transmitted over a wireless channel, and a digital variable gain amplifier (D...  
WO/2008/091420A2
Performance of a radio device is optimized by estimating if the device is inside a building. One or more sensors on the radio device are use to measure an environmental quantities relating to the environment of the radio device. The like...  
WO/2008/088255A1
The invention discloses a method (800) for use in a cellular wireless system (100) with a base station (120), a cell (110) in the system and a first user terminal (130) which can be scheduled for receiving traffic from the base station d...  
WO/2008/085968A1
A method for automated calibration of an avalanche photodiode receiver includes measuring two values of avalanche photodiode biases at two successive times, measuring and comparing a bit error rate corresponding to each value. When the b...  
WO/2008/083207A2
A wireless handheld device includes one or more antennas and a connector configured to couple with one or more external accessories. The handheld device further includes an accessory detector coupled to the connector and configured to de...  
WO/2008/082793A2
A noise suppression circuit for use in an audio signal processing circuit is provided. The noise suppression circuit includes a plurality of different types of noise activity detectors, which are each adapted for detecting the presence o...  
WO/2005/094479A3
A configurable antenna system and method of implementing is disclosed, having particular use with a wireless access point of the type used with a wireless local area network. The antenna system includes an antenna arrangement for selecti...  
WO/2008/045983A3
A microphone microchip for a voice communication device. The microchip receives and processes an audio signal from a microphone. The microchip incorporates an RF filter that substantially attenuates noise signals at RF frequencies, while...  
WO/2008/073768A1
A system (100) and method (200) for dynamic frequency synthesizer programming is provided The method can include identifying (202) a first operating frequency (120) of a first oscillator (250), identifying a second operating frequency (1...  
WO/2007/120765A3
The system and method described is directed to receiving digital audio files and automatically converting the received files into haptic events. In an embodiment, the received files are of sampled digital or digitized analog audio files....  
WO/2008/064492A1
Disclosed is a behavioral model for wide-band radio frequency transmitters. Also disclosed are various implementation of the behavioral model for purpose of baseband predistortion of dynamic nonlinear systems, such as wideband wireless t...  
WO/2006/065883A3
Signals propagating on an aggressor communication channel can cause interference in a victim communication channel (110, 115). A sensor (125) coupled to the aggressor channel can obtain a sample of the aggressor signal. The sensor (125) ...  
WO/2008/066128A1
In order to provide a wireless communication apparatus that reduces noise and maintains its receiving sensitivity, a stub (5) with a base end (51) electrically connected with a ground- coupling portion (7) adjacent to an RF circuit (4) a...  

Matches 601 - 650 out of 5,034