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1458results about "Near-field in RFID" patented technology

Communication System and Communication Apparatus

A communication system includes the following elements: a transmitter including a transmission circuit unit configured to generate an RF signal for transmitting data and an electric-field-coupling antenna configured to transmit the RF signal as an electrostatic field; a receiver including an electric-field-coupling antenna and a reception circuit unit configured to receive and process the RF signal received by the electric-field-coupling antenna; and a surface-wave propagation medium configured to provide a surface-wave transmission line to transmit a surface wave emanating from the electric-field-coupling antenna of the transmitter with low propagation loss.
Owner:SONY CORP

Antenna system and method

InactiveUS20050159187A1Maximize near-field to far field ratioMinimize peak far-field gainAntenna supports/mountingsPosition fixationPhase shiftedTransmitted power
An embodiment of the present invention provides an antenna system, comprising a plurality of non-uniformly spaced antenna elements arranged substantially linearly, a power divider for dividing transmit power thereby coupling signals to the plurality of antenna elements, a phase shifter capable of phase shifting the signals between the power divider and the plurality of antenna elements such that radiated signals from each antenna element add coherently such that the radiated electromagnetic energy may be focused at a focal point in the near field region or in the Fresnel region of the antenna system. An embodiment of the present invention may also provide at least one additional receive antenna element capable of receiving signals backscattered from at least one RFID tag located in the near field of the focused array and the divider may create substantially equal power levels feeding each antenna element. The antenna elements may be similar or identical and each element may be oriented such that the individual element main beam may point in a unique direction.
Owner:NXP USA INC

RFID system with RF bus

A radio frequency identification (RFID) system includes an RFID reader, an RFID tag, and a network connection module. The RFID reader includes a reader radio frequency (RF) bus transceiver. The network connection module includes a network connection RF bus transcevier, wherein the reader RF bus transceiver exchanges at least one of inbound RFID data and outbound RFID data with the network RF bus transceiver via an RF bus.
Owner:AVAGO TECH WIRELESS IP SINGAPORE PTE

Data center equipment cabinet information center and updateable asset tracking system

ActiveUS8917513B1Easy and less-expensive to manageEasy to operateFurniture partsLogisticsInterior spaceControl power
A cabinet frame enclosure is provided having a first side wall, a second side wall, a first opening and a second opening each in combination defining an interior space for accommodating a plurality of equipment, the equipment being removable through the first opening. A plurality of functional modules are provided such as: an asset tracking module for detecting the presence or absence of the equipment from the interior space of the cabinet frame enclosure, the asset tracking module disposed in the first side wall adjacent the first opening; an access control module for providing electronic locking and access control to the interior space of the cabinet frame enclosure; an environmental management module for monitoring and controlling environmental conditions within the interior space of the cabinet frame enclosure; a power management module for monitoring and controlling power distribution to equipment located in the interior space of the cabinet frame enclosure, the power management module disposed in one of the first side wall or second side wall and adjacent the second opening; and a cabinet control module (CCM) for providing consolidated connectivity to the plurality of functional modules, wherein the CCM presents a single network connection for managing the equipment located in the cabinet frame enclosure.
Owner:METHODE ELETRONICS INC

Providing derived location information for customer relationship in response to receipt of short range wireless beacon

A mobile station is configured to detect entry into a premises of an enterprise in response to short range or near field radio-frequency signals. The mobile station receives signals from one or more short range wireless beacons located in the premises, and the mobile station sends identifiers from the beacon signals to a location server. The location server processes the identifiers to determine location of the mobile station within the premises and sends information to the mobile station, for presentation to the user of a map of the premises showing the determined location of the mobile station within the premises. Entry detection also may be used to automatically check-in a customer / user of the mobile station with a system of the enterprise used by personnel of the enterprise at the premises to enable the personnel to customize interactions the customer while the customer is at the premises.
Owner:CELLO PARTNERSHIP DBA VERIZON WIRELESS
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