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Antenna patents



      
           
This page is updated frequently with new Antenna-related patent applications. Subscribe to the Antenna RSS feed to automatically get the update: related Antenna RSS feeds. RSS updates for this page: Antenna RSS RSS


Adjustable tuning of a dielectrically loaded loop antenna

Mri compatible intrabody stylets and related methods and systems

Monolithically integrated implantable flexible antenna for electrocorticography and related biotelemetry devices

Date/App# patent app List of recent Antenna-related patents
09/11/14
20140259080
 Portable satellite television system switchable between ka and ku frequency bands patent thumbnailPortable satellite television system switchable between ka and ku frequency bands
The satellite antenna device, system and methods according to certain embodiments of the present invention can receive broadcast information on both of two different frequency bands by selectively switching an alignment position of the low noise block converter (lnb) with respect to a fixed wave guide assembly so that the inlets to the respective frequency band inlets to the lnb align with the wave guide according to the selected target satellite broadcast signal.. .
09/11/14
20140257267
 Adjustable tuning of a dielectrically loaded loop antenna patent thumbnailAdjustable tuning of a dielectrically loaded loop antenna
A microwave antenna assembly is disclosed. The antenna assembly includes an elongated member defining a longitudinal axis and having proximal and distal ends.
09/11/14
20140257086
 Mri compatible intrabody stylets and related methods and systems patent thumbnailMri compatible intrabody stylets and related methods and systems
Intrabody mri-compatible medical devices with a rigid stylet body with opposing distal and proximal ends with a wall enclosing at least one cavity extending therebetween. The stylet body has first and second laterally spaced apart and opposing external longitudinally extending recessed surfaces and at least one pair of transversely spaced apart apertures extending through the wall and at least one conductor having a length that extends through the cavity then exits the cavity to define at least one external loop extending between the distal end of the stylet body and the pair of transversely spaced apart apertures.
09/11/14
20140257052
 Monolithically integrated implantable flexible antenna for electrocorticography and related biotelemetry devices patent thumbnailMonolithically integrated implantable flexible antenna for electrocorticography and related biotelemetry devices
A sub-skin-depth (nanoscale metallization) thin film antenna is shown that is monolithically integrated with an array of neural recording electrodes on a flexible polymer substrate. The structure is intended for long-term biometric data and power transfer such as electrocorticographic neural recording in a wireless brain-machine interface system.
09/11/14
20140256478
 System and method for determining ball movement patent thumbnailSystem and method for determining ball movement
A system for identifying ball movement and position is disclosed. The system includes a ball for use in a sport activity comprising a lace or thread on, or adjacent to, an outer surface of the ball, and a communication element such as a wire or antenna disposed within the lace or thread, the ball's communication element being adapted to communicate via a signal received from, or sent to, one or more communication elements, such as a transmitter or receiver, disposed at or near a playing area.
09/11/14
20140256388
 Hairpin element for improving antenna bandwidth and antenna efficiency and mobile device with the same patent thumbnailHairpin element for improving antenna bandwidth and antenna efficiency and mobile device with the same
A mobile device includes a main antenna and a hairpin element. The hairpin element is disposed adjacent to the main antenna, and substantially has a u-shape.
09/11/14
20140256386
 Mobile device for power reduction and method thereof patent thumbnailMobile device for power reduction and method thereof
A device and a method for saving power in a mobile electronic device are provided. A mobile electronic device includes a plurality of antennas and a transceiver, wherein the transceiver includes a control unit configured to switch to a low power mode to operate in the low power mode, or to operate at least one of the plurality of antennas in the low power mode when a data non-transmission period occurs for a predetermined time in an active state..
09/11/14
20140256378
 Mobile communication terminal for decreasing sar value and method of controlling the same patent thumbnailMobile communication terminal for decreasing sar value and method of controlling the same
A method of controlling a mobile communication terminal including a first antenna and a second antenna is provided. The method includes receiving transmission data to be transmitted, applying first power smaller than a first threshold value to the first antenna, applying second power smaller than the first threshold value to the second antenna, and cooperatively transmitting the transmission data based on the first power and the second power, respectively, by the first antenna and the second antenna, wherein a sum of the first power and the second power is larger than a second threshold value..
09/11/14
20140256377
 Electronic device with through-display near field communication capability patent thumbnailElectronic device with through-display near field communication capability
An electronic device (200) includes a control circuit (304) disposed on a substrate (220). The control circuit is operable with a display (509), a near field communication circuit (201) and a wide area communication circuit (302).
09/11/14
20140256376
 Wireless device with built-in self test (bist) capability for transmit and receive circuits patent thumbnailWireless device with built-in self test (bist) capability for transmit and receive circuits
A wireless device with built-in self test (bist) capability for testing/calibrating transmit and receive circuits is disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) includes a first circuit and a second circuit.
09/11/14
20140256375
Detecting electromagnetic energy for alarm or log using mobile phone devices
A mobile phone is configured to employ existing antennae or other exiting input electronics to receive electromagnetic waves, for detection of energy magnitudes. The mobile phone has wireless receiver electronics to receive, through the antennae, communication signals in a plurality of different communication bands that correspond to the plurality of different frequency ranges.
09/11/14
20140256373
Test system having test stations with adjustable antennas
A test system may include a master test station and slave test stations. The test stations may receive devices under test such as portable wireless electronic devices.
09/11/14
20140256273
Tunable quality factor
The present disclosure relates to a wireless communication system configured to transforming the radiating mechanism of the antenna system in such a way to support different operating modes depending on the needs. In some examples, the wireless communication system comprises an antenna structure connected to a signal process unit.
09/11/14
20140256267
Wireless testing system and method for controlling the same
A wireless testing system includes a main computer that controls a wireless module, a rotary mechanism, a measurement device, and an antenna. The rotary mechanism includes a rotatable seat controlled by the main computer to rotate about a first rotation axis, a support arm disposed on the rotatable seat, and a module rotating arm disposed on the support arm and positioning the wireless module at or in the vicinity of the first rotation axis.
09/11/14
20140255034
Method and system for wireless transmission of of analog signals between antenna and baseband processor
A wireless communication method and system utilizing optical transmission technology to transport analog signals directly to/from the antenna, without adc/dac, so that the optical transport facility can be utilized more efficiently and there is no need to adapt the digital data rate to the transport capacity, as the analog transmission is independent of the digits buried in the given spectrum. Complicated operation is moved into a centralized location, so that a cell site (base station) is light and flexible.
09/11/14
20140254783
Home gateway terminal system
A method of accessing a dedicated phone or internet service at a remote location includes providing a system having a terminal, a phone, and a usb stick that is adapted to be used with a data-only communication device. The terminal has a phone jack that is coupled to a dedicated phone service line for use with the phone, a data jack that is coupled to a dedicated internet service, and a connector that is adapted to receive a cable that is connected to a satellite dish for uplink and downlink communication with an orbiting satellite.
09/11/14
20140254726
Antenna switching apparatus based on spatial modulation
An antenna switching apparatus based on spatial modulation includes a plurality of antennas; a control signal generator configured to generate a plurality of switching control signals; and a plurality of switches configured to switch on to apply a transmission signal to the respective antennas according to the respective switching control signals. Further, the antenna switching apparatus includes a delay analyzer configured to receive the transmission signal output from each of the plurality of switches to calculate delay information for synchronizing the switching control signals applied to the respective switches; and a delay adjuster configured to synchronize the switching control signals to apply the synchronized switching control signals to the respective switches according to the calculated delay information..
09/11/14
20140254719
Symbol vector-level combining transmitter for incremental redundancy harq with mimo
Techniques are provided for transmitting and receiving a mother code in an incremental redundancy hybrid automatic repeat-request protocol. A set of information bits corresponding to a message may be encoded and interleaved to produce the mother code.
09/11/14
20140254715
Robust precoding vector switching for multiple transmitter antennas
Methods, apparatuses, and computer program products for robust precoding vector switching for multiple transmitter antennas are provided. One method includes defining, by a base station, a precoding vector switching (pvs) scheme for transmission of synchronization signals through multiple antennas comprising a plurality of pairs of cross-polarized antenna elements.
09/11/14
20140254706
Interference reduction for multiple signals
The present invention reduces the degradation in performance of one or more radio signals that are co-transmitted with a first radio signal from the same transmitting antenna in the same frequency channel and received by the same antenna due to multipath or other shared interference, where the one or more radio signals can be separated from the first radio signal. All received signals are coupled to the same adaptive array or adaptive filter to reduce multipath or other shared interference of the first radio signal, which reduces multipath and other shared interference in the other radio signals before they are separated and processed by their respective receivers, or the individual radio signals are separated before the first signal enters the adaptive array and coupled to a slave weighting network slaved to the weights of the adaptive array of the first signal to reduce interference in all the signals..
09/11/14
20140254705
Method and apparatus for transmitting feedback in a wireless communication system
Disclosed are a method and apparatus for transmitting feedback in a wireless communication system. A terminal transmits first csi (channel state information) on a first node combination to a base station, or a terminal transmits second csi on a second node combination to the base station.
09/11/14
20140254703
Communication method and apparatus for use in multiple antenna system
A method and apparatus for transmitting and receiving signals is provided for use in a codebook-based closed-loop multiple antenna system. A method for receiving signals in a codebook-based multiple antenna system according to the present disclosure includes estimating a desired signal and an interference channel, determining a codebook index using the desired channel, a hermitian of the desired channel, and the interference channel, and feeding back the codebook index to a transmitter.
09/11/14
20140254702
Method and apparaptus for transmitting and receiving channel related information
The present disclosure relates to a method and an apparatus for transmitting and receiving channel related information. A method of transmitting channel related information of a ue according to an embodiment of the present disclosure includes configuring a sub-channel corresponding to a part of a plurality of antennas of an enb; acquiring a channel estimation error (cee) and a precoding matrix indicator (pmi) corresponding to the sub-channel; and transmitting a sub-channel indicator (si) indicating the sub-channel, according to the cee and the pmi.
09/11/14
20140254701
Systems and methods for enhanced mimo operation
A method for channel state information (csi) reporting by a wireless communication device is described. The method includes determining a codebook for a csi report corresponding to four transmit antenna (4tx) transmissions from a base station.
09/11/14
20140254699
Mimo communication method, mimo transmitting device, and mimo receiving device
A first digital signal sequence including i and q digital signal sequences is obtained, the first digital signal sequence being obtained by multiplying each bit of an i-sequence and a q-sequence in a digital signal sequence system by a first code among codes constituting n-th order (n is an integer) orthogonal codes. A second digital signal sequence is obtained by multiplying i and q digital signal sequences by a first coefficient greater than 1, the i and q digital signal sequences being obtained by multiplying each of the bits in the i-sequence and the q-sequence in the digital signal sequence system by a first code among codes constituting 2n-th order orthogonal codes.
09/11/14
20140254692
Digital e8-vsb reception system and e8-vsb data demultiplexing method
A method of processing a digital television (dtv) signal is disclosed. Herein, the dtv signal is generated by performing reed-solomon (rs) encoding on additional data, multiplexing the rs-encoded additional data with main data, rs encoding the multiplexed additional and main data, interleaving the rs-encoded additional and main data, trellis encoding the interleaved additional and main data, and transmitting a radio frequency (rf) dtv signal including the trellis-encoded additional and main data.
09/11/14
20140254654
Method and apparatus for implementing signal quality metrics and antenna diversity switching control
A method for detecting the digital quality of a radio signal includes: receiving a radio signal including a digital portion modulated by a series of symbols each including a plurality of samples; computing correlation points between endpoint samples in cyclic prefix regions of adjacent symbols; and using the correlation points to produce a digital signal quality metric. Receivers that implement the method are also provided..
09/11/14
20140254578
Wireless communication system, wireless communication apparatus, and wireless communication method
A wireless communication system is disclosed. The wireless communication system performs data transmission using spatially multiplexed streams from a first terminal including n antennas to a second terminal including m antennas (n and m are integers larger than or equal to 2 and n>m)..
09/11/14
20140254568
Semiconductor module
A semiconductor module includes a first transmission circuit outputting a first transmission signal of a first wireless communication system based on time-division multiplexing, a second transmission circuit outputting a second transmission signal of a second wireless communication system based on time-division multiplexing, and a switch circuit outputting a reception signal from an antenna, as a first reception signal of the first wireless communication system or a second reception signal of the second wireless communication system, outputting the first transmission signal and the first reception signal in a time division manner, and outputting the second transmission signal and the second reception signal in a time division manner.. .
09/11/14
20140254533
Method of monitoring a control channel, and wireless device using same
The present invention relates to a method of monitoring a control channel and a wireless device using same in a multiple antenna system in which a plurality of layers are defined. The wireless device monitors a first downlink control channel in a first search space which is mapped to a first layer, and a second downlink control channel in a second search space which is mapped to a second layer.
09/11/14
20140254517
Method for multi-input multi-output communication in large-scale antenna system
Disclosed is a method for multi-input multi-output transmission of a base station in a wireless communication system. The method includes obtaining channel information of one or more terminals, classifying the one or more terminals into one or more classes and one or more groups dependent on the class based on the channel information, determining a group beamforming matrix for each of the one or more groups, performing group beamforming transmission on terminals belonging to each of the one or more groups based on the group beamforming matrix, obtaining single user-channel quality indicator (su-cqi) information and interference signal information of each of the terminals belonging to each of the one or more groups, and scheduling the terminals based on the su-cqi information and the interference signal information..
09/11/14
20140254514
Codebook enchancement for long term evolution (lte)
Multiple input multiple output systems using a transmit precoder codebook designed for a four-transmitter (4tx) antenna configuration are described. The 4tx antenna configuration is an attractive option for base stations in cellular network environments and it is desirable to use a transmitter precoder codebook that provides sufficient granularity in typical operating scenarios, and to address various antenna configurations.
09/11/14
20140254507
Antenna control system and method
A wireless router applying an antenna control method includes a number of antennas and communicates with a number of terminal devices via the antennas. The antenna control method includes detecting a current bandwidth bcur of each terminal device communicating with the wireless router and determining a maximum bandwidth bmax of each of the terminal devices, computing a weighted sum sumb of the bandwidths of the terminal devices according to the detected current bandwidth bcur and the maximum bandwidth bmax of each terminal device, comparing the weighted sum sumb of the bandwidths with a first preset value, and turning on or turning off at least one of the antennas according to the compared result.
09/11/14
20140254084
Multiprocessor computing apparatus with wireless interconnect for communication among its components
A fan less multiprocessor computing apparatus (mca) is housed in a metallic enclosure (me) that acts as an heat sink and provides extended surface area for heat dissipation. The me also acts as an electro-magnetic-shield that provides immunity from electro-magnetic-interference (emi) from external stray magnetic fields to wireless communications among components of mca.
09/11/14
20140253411
Wireless terminal
Disclosed is a wireless terminal. The wireless terminal comprises: a printed circuit board (21), an antenna (22) coupled onto the printed circuit board (21) and configured to transmit electromagnetic waves, a parasitic unit (23) coupled onto the printed circuit board (21) and configured to lower an sar peak value of the electromagnetic waves, and a lumped element (24) coupled onto the parasitic unit (23) and configured to adjust the amplitude and phase of the current in the parasitic unit (23).
09/11/14
20140253410
Multi-mode, multi-band antenna
A multi-mode, multi-band antenna system for a handheld wireless device includes a quadrafilar helix antenna (qha) that radiates circularly polarized waves is fed by a co-axial cable. The co-axial cable is also used in combination with the qha as a monopole antenna.
09/11/14
20140253409
Composites for antennas and other applications
Composite material, devices incorporating the composite material and methods of forming the composite material are provided. The composite material includes interstitial material that has at least one of a select relative permittivity property value and a select relative permeability property value.
09/11/14
20140253408
Chain antenna system
A radio frequency identification (rfid) system according to one embodiment includes a chain of radiating elements; a transmission line; and power dividers coupled along the transmission line, the power dividers coupling the transmission line to each of the radiating elements, the power dividers being configured such that each radiating element receives about a same amount of power from the transmission line.. .
09/11/14
20140253407
Slim triple band antenna array for cellular base stations
The present invention refers to a triple-band antenna array for cellular base stations operating at a first frequency band and at a second frequency band within a first frequency range, and also at a third frequency band within a second frequency range. Said triple-band antenna array comprises a first set of radiating elements operating at the first frequency band, a second set of radiating elements operating at the second frequency band, a third set of radiating elements operating at both the third and the first frequency bands, and a fourth set of radiating elements operating at both the third and the second frequency bands.
09/11/14
20140253406
Segmented antenna
An antenna comprising a main arm comprising conductive material, wherein the main arm is connected to a signal feed, and a first coupling arm comprising conductive material, wherein the first coupling arm is electrically coupled to a ground, and wherein the first coupling arm is electrically coupled to the main arm across a first span of nonconductive material. Also disclosed is a mobile node (mn) comprising a signal feed, a ground, and an antenna comprising a main arm comprising conductive material, wherein the main arm is connected to the signal feed, and a first coupling arm comprising conductive material, wherein the first coupling arm is connected to the ground, and wherein the first coupling arm is electrically coupled to the main arm across a first span of nonconductive material..
09/11/14
20140253405
Antenna of inverted f antenna type integrated into a printed card, and system
An ifa type antenna is integrated into a printed card, the printed card having a main-extension plane. The ifa type antenna has a first electrically conducting element, serving as earth plane, a second electrically conducting element, serving as radiating element of the antenna, an electrically conducting connection, serving to short-circuit the first electrically conducting element and the second electrically conducting element, and an excitation element being in electrical contact with the second electrically conducting element.
09/11/14
20140253404
Antenna device and radio communication apparatus
An antenna device includes a multilayer body including magnetic layers or dielectric layers that are stacked, a first coil conductor that has a winding axis extending in a direction perpendicular or substantially perpendicular to a stacking direction of the multilayer body, the first coil conductor being provided in the multilayer body, and a second coil conductor that has a winding axis extending in a direction perpendicular or substantially perpendicular to the winding axis of the first coil conductor, the second coil conductor being provided in the multilayer body.. .
09/11/14
20140253403
Low profile double-ridged horn antenna for mobile communications
A broadband double-ridged low profile horn antenna is particularly useful for communications in a mobile wireless network. The broadband antenna of the invention is especially suited for being mounted on the rooftop of a train or vehicle.
09/11/14
20140253402
Enclosure for radio, parabolic dish antenna, and side lobe shields
Enclosures for radios, parabolic dish antennas, and side lobe shields are provided herein. A dish antenna includes a parabolic circular reflector bounded by a side lobe shield that extends along a longitudinal axis of the dish antenna in a forward direction forming a front cavity, and a sidewall that extends along the longitudinal axis of the dish antenna in a rearward direction forming a rear cavity..
09/11/14
20140253401
Wideband high gain antenna
An antenna array formed of individual electrically connected pluralities of wideband antenna elements. The array features a centrally located rectangular ground plane having a top surface defined by four edges.
09/11/14
20140253400
Method and apparatus for a compact modular phased array element
In various embodiments, a radiating cell of an antenna array can comprise a compacted hybrid as part of a stripline feed network, a radiating element having slots rotated with respect to the compacted hybrid, and a feed circuit layer in communication with the stripline feed network. The radiating cell radius can be a ½ wavelength or less.
09/11/14
20140253399
Wideband slot antenna for wireless communication devices
An antenna comprising a conductive base comprising a west edge, an east edge, a north edge, a south edge, and a center axis, a left slot of nonconductive material extending from the south edge toward the north edge and positioned between the west edge and the center axis, and a right slot of nonconductive material extending from the south edge toward the north edge and positioned between the east edge and the center axis.. .
09/11/14
20140253398
Tunable antenna
A tunable antenna includes a ground plane, a first radiation unit and a second radiation unit. The first radiation unit includes a feeding portion and a coupling portion.
09/11/14
20140253397
Conformal, wearable, thin microwave antenna for sub-skin and skin surface monitoring
A wearable antenna is operably positioned on a wearer's skin and is operably connected the wearer's tissue. A first antenna matched to the wearer's tissue is operably positioned on the wearer's skin.
09/11/14
20140253396
Nfc antenna using dual resonance technical field
The present invention is disclosed to provide an nfc antenna using dual resonance, wherein a closed circuit is formed by a capacitor and a loop antenna, and a relay unit is attached to a portable wireless terminal that forms a resonance to a predetermined frequency signal mutually transmitted between a portable wireless terminal reader and an nfc chip, and in the course of communicating between the nfc chip and the reader, the relay unit relays a signal transmitted by the reader to an nfc antenna unit, and the nfc chip relays a signal transmitted through the nfc antenna unit to the reader to thereby increase a recognition distance capable of obtaining predetermined information.. .
09/11/14
20140253395
Multiple-body-configuration multimedia and smartphone multifunction wireless devices
A multifunction wireless device having at least one of multimedia functionality and smartphone functionality, the multifunction wireless device including an upper body and a lower body, the upper body and the lower body being adapted to move relative to each other in at least one of a clamshell, a slide, and a twist manner. The multifunction wireless device further includes an antenna system disposed within at least one of the upper body and the lower body and having a shape with a level of complexity of an antenna contour defined by complexity factors f21 having a value of at least 1.05 and not greater than 1.80 and f32 having a value of at least 1.10 and not greater than 1.90..
09/11/14
20140253394
Coupled antenna structure and methods
Antenna apparatus and methods of use and tuning. In one exemplary embodiment, the solution of the present disclosure is particularly adapted for small form-factor, metal-encased applications that utilize satellite wireless links (e.g., gps), and uses an electromagnetic (e.g., capacitive) feeding method that includes one or more separate feed elements that are not galvanically connected to a radiator element of the antenna.
09/11/14
20140253393
Coupled antenna structure and methods
Antenna apparatus and methods of use and tuning. In one exemplary embodiment, the solution of the present disclosure is particularly adapted for small form-factor, metal-encased applications that utilize satellite wireless links (e.g., gps), and uses an electromagnetic (e.g., capacitive) feeding method that includes one or more separate feed elements that are not galvanically connected to a radiating element of the antenna.
09/11/14
20140253392
Electronic device with capacitively loaded antenna
An electronic device may have an antenna for providing coverage in wireless communications bands of interest such as a low frequency communications band, a middle frequency communications band, and a high frequency communications band. Slot structures in the antenna that might reduce efficiency in the high frequency communications band may be avoided by capacitively loading the antenna and omitting meandering paths in the antenna.
09/11/14
20140253391
Bond wire antenna
An antenna structure includes a substrate having at least one first pad for wire bonding. A chip is mounted on the substrate, and the chip has at least one second pad for wire bonding.
09/11/14
20140253381
High degree of freedom array
An array of elements suitable for adaptive processing in an extreme jammed environment comprised of a plurality of smaller sub-arrays of element clusters that have natural orthogonal spatial modes of excitation, wherein the improvement comprises sub-arrays with spatial orthogonality of feed modes, cross-sub-array combination to maximize pre-processing sub-array spacing and diversity of relative configuration, a high-input analog nuller used on the pre-processing sub-array therein, a high-input analog nuller is used to null a dominant jamming signal, possibly exceeding normal communication signal levels, so that the sub-array processed signals could then be fed to an antenna processor with simultaneous beam steering and null steering.. .
09/11/14
20140253380
Active retrodirective wireless communication apparatus
An active retrodirective wireless communication apparatus is provided. The active retrodirective wireless communication apparatus can extend a communication range by enabling communication with a wide area user who is not able to communicate via an omnidirectional antenna, by alternately operating a plurality of active retrodirective antennas during a time interval for performing omnidirectional communication among a plurality of local area users, and a time interval for performing directional communication to a specific wide area user..
09/11/14
20140253379
Mode generator device for a satellite antenna system and method for producing the same
The present invention is related to a device for generating waveguide modes for use in a feed horn of a satellite antenna system, said waveguide modes comprising at least one excitation mode of higher order than the fundamental mode, said device comprising a waveguide containing a first waveguide section with at least three longitudinal slots extending in the inner side of said waveguide, characterised in that said waveguide contains a second waveguide section with at least three longitudinal slots extending in said inner side of said waveguide.. .
09/11/14
20140253378
Quad-sector antenna using circular polarization
Systems and methods for providing a mimo capable antenna with unique properties are provided herein. In some embodiments, a 4×4 mimo capable antenna is provided with unique properties.
09/11/14
20140253370
Weather radar apparatus, observation sequence generation method, and observation sequence generation program
According to one embodiment, a weather radar apparatus includes an antenna apparatus, a signal processing apparatus, a data converter, a forecasting unit, a state determination unit, and radar controller. The antenna apparatus radiates a radar pulse and receives a reflection pulse.
09/11/14
20140253364
Map aware adaptive automotive radar
A dedicated short range radar system is provided for use with a gps system. The radar system includes a transmitter which transmits a microwave radio signal.
09/11/14
20140253296
Method and system for locating objects
The invention relates to a method for locating an rfid tag (1) using at least one rfid reading device (2). The invention is characterized in that the rfid reading device (2) transmits a query signal (3) which comprises a broadband signal (4); the rfid tag (1) modulates the query signal (3) with a code signal (5) by varying the antenna impedance of the rfid tag and reflects said signal as a reflected signal (6); the rfid reading device (2) receives the reflected signal (6) and obtains the code signal (5) and a scattered broadband signal (7) from the reflected signal; the rfid reading device (2) determines a travel time of the broadband signal (4) by comparing the broadband signal (4) with the scattered broadband signal (7); the rfid reading device (2) determines the distance between the rfid reading device (2) and the rfid tag (1) from the travel time difference..
09/11/14
20140253288
Vehicle remote function system and method for determining vehicle fob locations using adaptive filtering
A vehicle remote function system is provided for determining locations of a fob relative to a vehicle. The system may include a controller configured for communication with antennas mounted at different locations in the vehicle, the controller for use in determining locations of the fob based on ultra-wide band wireless signals transmitted between the antennas and the fob.
09/11/14
20140253287
Vehicle remote function system and method for effectuating vehicle operations based on vehicle fob movement
A vehicle remote function system is provided for use in effectuating vehicle operations based on movement of a fob relative to a vehicle. The system may include a controller for determining locations of the fob within zones proximate the vehicle based on ultra-wide band wireless signals transmitted between the antennas and the fob, the zones including a primary zone and secondary zones, each secondary zone at least partially within the primary zone.
09/11/14
20140253230
Method for operating a traveling-wave tube module
A method for operating a traveling-wave tube module of a communication satellite involves receiving of a high-frequency signal from an antenna of the satellite and determining that the high-frequency signal is to be amplified. The cathode current of a traveling-wave tube is increased to a predetermined operating value if the high-frequency signal is to be amplified and the high-frequency signal is amplified by the traveling-wave tube..
09/11/14
20140253153
Radio-frequency ion channel antenna
An antenna is used for radio frequency measurements of cell wall impedance changes due to ion channels. The antenna provides enhanced direct readout of lipid bilayers and cells containing pores and ion channels.
09/11/14
20140253131
Apparatus and method for directional resistivity measurement while drilling using slot antenna
An apparatus for making directional resistivity measurements of a subterranean formation includes a resistivity tool with a longitudinal axis and an outer surface, multiple slots formed on the outer surface of the resistivity tool and oriented substantially parallel to the longitude axis of the resistivity tool, and multiple wires posited in the slots and electrically connecting end walls of the slots to form magnetic dipole antennas. The mantic dipole antennas form at least one transmitter-receiver antenna group to perform transmission and reception of electromagnetic signals.
09/11/14
20140253126
Magnetic resonance imaging apparatus and antenna device
In order to provide a technique which can suppress coupling to homogenize the spatial distribution of an rf magnetic field and can improve penetration of the rf magnetic field into the subject, pad-like electric field conductors having a predetermined area are provided outside both ends of a rung conductor as a part of a configuration which forms a loop-like circuit and is driven as an antenna. An antenna device includes a sheet-like conductor, a rung conductor which is arranged at a predetermined distance from the sheet-like conductor, two electric field conductors which are arranged in both end portions of the rung conductor at a predetermined distance from the sheet-like conductor, and connection terminals which are transmission and reception terminals provided in the rung conductor and the sheet-like conductor.
09/11/14
20140253116
System and method for obtaining nuclear magnetic resonance measurements on reservoir fluids for prediction of fluid properties
A nuclear magnetic resonance (nmr) measurement system for high pressure and temperature measurements on fluids is disclosed. The system has a sensor assembly that includes a sample holder having a body formed from a non-magnetic metal and defining an interior cavity for receiving a fluid sample, a frame member disposed in the interior cavity of the sample holder, an antenna coil disposed in the interior cavity about the frame member, an inlet that allows the fluid sample to enter the interior cavity, an outlet that allows for the fluid sample to be flushed from the interior cavity, and a magnet assembly having a central bore in which the sample holder is disposed.
09/11/14
20140253024
Method and apparatus for wirelessly charging mobile devices
An apparatus comprising a connector, at least one cover member, and at least one wireless charging antenna is provided. The connector is configured to interface with at least a charging connector of a mobile device, and the at least one cover member is configured to extend away from the mobile device in an opened configuration.


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