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Patent Searching and Data


Matches 701 - 750 out of 5,051

Document Document Title
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 ...  
WO/2007/085998A1
The radio telecommunication terminal (2) comprises a data burst scheduler able to schedule the continuous transmission of consecutive data bursts which generate noise of similar energy on the radio-frequency channel as long as a specific...  
WO/2004/070997A3
To reduce the amount of signalling traffic used bv a plurality of mobile nodes (19) positioned in a vehicle (15), a mobile communication system (fig. 1 or 2) is provided with a vehicle proxy location register ( VPLR 17). The VPLR transmi...  
WO/2007/041065A3
A device and method for of synchronizing a MAC superframe of a wireless device is disclosed. The wireless device can be located within a chain of a plurality of other wireless devices. The method includes receiving beacons from at least ...  
WO/2007/080226A1
An interference suppression scheme is provided for a radio receiver. According to the provided interference suppression scheme, the bandwidth of a received pilot signal and a data signal is divided into a plurality of frequency sub-bands...  
WO/2007/079574A1
Ultra-Wideband communication signals are analyzed based on an overcomplete dictionary that includes sub-dictionaries associated with noise (such as additive white Gaussian noise), interference, impulses, or signal pulse positions. The co...  
WO/2006/073638A3
A mobile communication device (100) includes a camera module (102) which provides an image stream when the camera module is active. The image stream is used to display images on a display (114) to provide a viewfinder function so that a ...  
WO/2007/074411A2
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/2007/070445A2
A cellular communications system capable of detecting long code mask collisions in the reverse link on call setup or call handoff comprises means for assigning (120) a different carrier for the reverse link for one of the duplicate calls...  
WO/2007/070590A2
A multi-channel noise reduction system provides improved noise reduction with direct instrument tracking of all channels. In a two channel noise reduction system, both channels detect and track the input level and dynamic range of the gu...  
WO/2007/067284A2
The present invention discloses a method and system for signal communication in a multi-input multi-output network. The method creates beamformed channels (230, 232) by calculating one or more beamforming weighting vectors corresponding ...  
WO/2007/067869A2
A mobile communication device (100) uses a local wireless transceiver (108) to establish an asynchronous link (202) with a remote audio processor (110) which is typically operated in a low power mode and that maintains an association bet...  
WO/2007/013981A3
A system for canceling acoustic feedback includes an input for receiving a digital audio signal and a processor configured to detect acoustic feedback signal in the digital audio signal and to determine the frequency of the feedback sign...  
WO/2006/138621A3
Systems and methodologies are described that facilitate performing interference nulling and rank prediction in an access terminal. Multiple receiver demodulator types may be implemented at the access terminal, and an interference covaria...  
WO/2007/063184A1
The invention relates to a radio transmitter (100), including means (124) for up-converting an input signal by mixing the input signal with a local oscillation signal, means (128) for extracting an observation signal from the up-converte...  
WO/2007/055676A1
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...  
WO/2007/055856A1
A system and method for performing topology control in a wireless network (100). The system and method operate to enable a node (102-1) to determine the link cost of a link between itself and another node (102-2), based on the number of ...  
WO/2005/120091A3
An access point (14) operates in an 802.11 wireless communication network (10) communicating with a client station (12), and includes a smart antenna (16) for generating directional antenna beams (20) and an omni-directional antenna beam...  
WO/2005/062920A3
A system for mitigating noise associated with information communication (140) includes means for determining when a first set of information is transmitted by a transmitter. The system includes a receiver (100) for receiving a second set...  
WO/2005/099141A3
A mote network having and/or using one or more directional antennas.  
WO/2007/041231A2
A first embodiment of the invention provides a method and apparatus for attenuating or amplifying voice or other signals present on a stereo audio recording that uses frequency domain techniques to calculate a time- and frequency-depende...  
WO/2007/041065A2
A device and method for of synchronizing a MAC superframe of a wireless device is disclosed. The wireless device can be located within a chain of a plurality of other wireless devices. The method includes receiving beacons from at least ...  
WO2006034497A8
A communications device for separating source signals provided by M signal sources includes an antenna array comprising N antenna elements for receiving at least N different summations of them source signals. A respective in-phase and qu...  
WO/2006/124341A3
A method for determining a path loss value of a signal transmitted from a wireless device to a receiver in a wireless communication system having at least one cell having at least one sector operating on at least one frequency channel. T...  
WO/2005/099037A3
Mote appropriate networks employing multiple frequencies, such as those utilized in frequency reuse techniques.  
WO/2007/034037A1
A method for operating a receiver and a device are provided. The device comprises a first and a second antenna, a receiver (202) operationally coupled to the first antenna (200) and a transceiver (212) operationally coupled to the second...  
WO/2007/030369A2
A low noise mixer comprises a first mixer core configured to receive a radio frequency (RF) input signal having an RF frequency, and a first local oscillator signal, wherein the first local oscillator signal is at a frequency that is nom...  
WO/2007/030600A2
A method of optimizing link transmission parameters between access nodes within a mesh network is disclosed. The method includes each access node within the mesh transmitting packets at N different combinations of data rates and power le...  
WO/2007/024805A2
A method of operating a wireless access point having a configurable antenna system includes determining a transmission signal quality metric for a first station with the configurable antenna system in a first configuration, determining a...  

Matches 701 - 750 out of 5,051