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Patent Searching and Data


Matches 651 - 700 out of 5,019

Document Document Title
WO/2007/117785A3
Methods and corresponding systems for suppressing noise in an input signal (204) include setting a minimum overall gain in a noise reduction processor (206) for processing a first frame of data associated with the input signal (204). In ...  
WO/2008/045983A2
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/2008/045803A2
An apparatus, a cognitive radio, a processor, a method, and a machine-readable medium for detecting a presence of a signal in a communication channel are disclosed. An apparatus includes a processor configured to select one or more peak ...  
WO/2008/039381A2
A technique includes providing a plurality of local oscillator signals such that each of the local oscillator signals has a different phase. The technique includes providing scaling units to scale the input signal pursuant to different s...  
WO/2008/036756A2
Techniques are described for automatically determining quasi-static per-link channel assignments for each radio in multiple-hop mesh networks having nodes with two or more radios and where only a small number of channels is available for...  
WO/2008/033641A2
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/2008/022449A1
A wireless communication method and system using virtual MIMO ("V-MIMO") are provided. Post processing signal to interference and noise ratios ("SINR") for a plurality of signals corresponding to a plurality of mobile terminals arranged ...  
WO/2008/023803A1
A communication device includes: a communication (COM) which performs operation control of a function accompanied by electromagnetic wave transmission or reception by an antenna; a touch sensor module (TSM) which has an oscillation circu...  
WO/2007/018888A3
A receiver (1100) includes a direct digital frequency synthesizer (130), a mixer (105), and a clock source (1110, 1130). The direct digital frequency synthesizer has an input terminal for receiving a first clock signal at a first frequen...  
WO/2008/000655A3
A method for avoiding interference in a radio transmission system (12) with at least one carrier frequency (fC) is disclosed, based on a pulse width modulated signal (SPWM). The method is characterised in that a clock frequency (fT) for ...  
WO/2008/015948A1
A noise canceller configured to remove surrounding noise from a desirable sound collected by a first microphone, the noise canceller includes a second microphone arranged in a place separated from the first microphone and configured to c...  
WO/2007/106621A3
This invention provides a method for improved frequency agility and preferably includes transmitting and receiving data on a primary channel; finding a secondary channel substantially free from interference during a period between data t...  
WO/2007/140346A3
Based on an expected error rate for a wireless transmission, the length of the transmission may be limited so that the probability of an error in one or more particular data segments is no greater than a predetermined threshold value. Th...  
WO/2007/025128A3
Noise discrimination in signals from a plurality of sensors is conducted by enhancing the phase difference in the signals such that off-axis pick-up is suppressed while on-axis pick-up is enhanced. Alternatively, attenuation/expansion ar...  
WO2007101338A8
Novel non-data-aided maximum likelihood estimators for the delays and the attenuations in an ultra-wide bandwidth channel are proposed. Numerical results show that these new estimators outperform the previous non-data-aided maximum likel...  
WO/2005/065012A3
This invention describes a method for efficient beamforning for generalized sidelobe canceling (10) using complementary noise separation filtering (31 ) for generating a noise reference for adaptation performance of an adaptive interfere...  
WO/2008/003135A1
A system and technique for feedback cancellation. An off-line feedback estimation filter is adaptive in response to an error signal. An on-line feedback cancellation filter produces a feedback cancellation signal. The on-line feedback ca...  
WO/2008/005072A1
A technique for modifying communication operational parameters using fast, low complexity, accurately calculated SNR values. Techniques may improve upon prior art by calculating SNR values in a more color noise insensitive manner in the ...  
WO/2008/003040A2
One embodiment of the present invention relates to a noise containment and vibration isolation system (100) for integrated audio/video electrical components. The system includes a housing (170), an inlet (122, 124), an outlet (140), an e...  
WO/2008/000655A2
A method for avoiding interference in a radio transmission system (12) with at least one carrier frequency (fC) is disclosed, based on a pulse width modulated signal (SPWM). The method is characterised in that a clock frequency (fT) for ...  
WO/2005/099287A3
A system and related method of utilizing one or more federated mote (802) related content log in a networking environment (706).  
WO/2006/127714A3
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, th...  
WO2007115104A9
A method of detecting a cardiac event in a medical device that includes sensing cardiac signals from a plurality of electrodes forming a first sensing vector and a second sensing vector, determining inflections of the sensed cardiac sign...  
WO/2006/115864A3
In a wireless communication system, (e.g., a wireless local area network (WLAN)), including a plurality of wireless transmit/receive units (WTRUs) and a coordinating node, (e.g., an access point (AP)), path loss is estimated by transmitt...  
WO/2007/140346A2
Based on an expected error rate for a wireless transmission, the length of the transmission may be limited so that the probability of an error in one or more particular data segments is no greater than a predetermined threshold value. Th...  
WO/2007/115104A3
A method of detecting a cardiac event in a medical device that includes sensing cardiac signals from a plurality of electrodes forming a first sensing vector and a second sensing vector, determining inflections of the sensed cardiac sign...  
WO/2007/100529A3
A state machine circuit may be used to control a multiplexing circuit that selects and provides respective ones of multiple input clock signals to a clock- synthesizing circuit that generates a synthesized clock signal in response to suc...  
WO/2007/128243A1
A base station of realizing self-adaptive group network, wireless access system and method of self-adaptive group network are disclosed, the system consists of interconnected wireless access controllers and base station, the said base st...  
WO/2006/107406A3
The invention can utilize a switching power regulator and a non-switching power regulator in conjunction to provide regulated power to the digital logic. The digital logic and switching regulator may be deactivated during RF activity so ...  
WO/2007/101338A3
Novel non-data-aided maximum likelihood estimators for the delays and the attenuations in an ultra-wide bandwidth channel are proposed. Numerical results show that these new estimators outperform the previous non-data-aided maximum likel...  
WO/2006/099283A3
Provided is a switched multiplexer configured to combine first, second, third and fourth signal paths each covenng a sub-octave in a frequency range of from about 2 to about 18 GHz and to remove transmitter harmonics of an input signal t...  
WO/2007/118513A1
A spectrum spreader may include a signal conductor and a tunable filter. The signal conductor may be configured to receive a clock signal having a clock signal frequency. The tunable filter may be coupled to the signal conductor wherein ...  
WO/2006/107852A3
A signal quality estimation and control system for controlling a signal having noise. The system may include a signal strength determination system having an input configured to receive the signal and an output configured to output infor...  
WO/2007/115404A1
A circuit for communicating information in a wireless network includes a filtering circuit in communication with a zero intermediate frequency (ZIF) transceiver circuit. The filtering circuit includes a first mixer in communication with ...  
WO/2007/115104A2
A method of detecting a cardiac event in a medical device that includes sensing cardiac signals from a plurality of electrodes forming a first sensing vector and a second sensing vector, determining inflections of the sensed cardiac sign...  
WO/2005/099140A3
A mote network (150) having and/or using one or more directional antennas (102).  
WO/2006/050136A3
An automatic channel selection (ACS, 300) process enables an access point to determine a best channel available, i.e., the channel with a least amount of interference, for it operation. When ACS (300) is enable, the access point scans fr...  
WO/2007/112585A1
A receiver and associated method estimates a channel impulse response of the communications signal. A communications signal is received as a burst of transmitted symbols, including a known training sequence. The joint estimation of timin...  
WO/2006/121718A3
A system and a method for clearly obtaining heart sounds in the presence of noise, including, from a systemic point of view (a) a pair of close-proximity sound transducers applied to a pair of sites on the human body for gathering heart ...  
WO/2007/074411A3
A transmitter comprising a quadrature mixer circuit (14) having at least two inputs (20, 22) for receiving a local oscillation signal and an input signal having their highest power peaks in a power density spectrum located at frequencies...  
WO/2007/040884A3
The invention concerns a method (500) and system (100) for suppressing receiver audio regeneration. The method (500) includes the steps of receiving a communication signal (502), at a Radio Frequency (RF) unit (102), demodulating the com...  
WO/2007/104131A1
An improved receiver architecture and method for a wireless transceiver (e.g. for a headphone) is provided whereby the receiver, advantageously, enables the use of only one synthesizer circuit for both the RF-to-IF and IF-to-base band co...  
WO/2007/106621A2
This invention provides a method for improved frequency agility and preferably includes transmitting and receiving data on a primary channel; finding a secondary channel substantially free from interference during a period between data t...  
WO/2007/102684A1
An apparatus and method for canceling an interference signal of a mobile communication repeater are provided. In a mobile communication system employing a wideband CDMA scheme, when a downlink received signal transmitted from a base stat...  
WO/2007/101338A2
Novel non-data-aided maximum likelihood estimators for the delays and the attenuations in an ultra-wide bandwidth channel are proposed. Numerical results show that these new estimators outperform the previous non-data-aided maximum likel...  
WO/2007/099411A1
An electronic device 300 comprises a processing component 330 for reducing electromagnetic interferences. The processing component 330 is adapted to determine an activity status of at least one first component 311-315 operating in at lea...  
WO/2007/100330A1
Signal separation techniques (BSS) based on frequency dependency using a BSS separation process is provided that avoids the substantial permutation problem in signal separation processes (30). The BSS process uses a plurality of signal s...  
WO/2005/076934A3
Measurement opportunities are provided to a wireless transmit/receive unit (WTRU) operating with a switched beam antenna in a CDMA wireless communication system. The switched beam antenna is a smart antenna generating a plurality of dire...  
WO2007055676A8
A method and system for distance measurement in a low or zero intermediate frequency (IF) half-duplex communications loop provides a mechanism for measuring the distance between transceiver (10A) and transceiver (10B), comprising a phase...  
WO2005104778A8
A communication arrangement for a household appliance device. The arrangement include a first communication part including a transmitter (14) for transmitting a wireless signal, an a second communication part (16), remotely located from ...  

Matches 651 - 700 out of 5,019