Patent
Non-contact data and power connector for computer based modules
TLDR
In this paper, a magnetic core has both power supply and data windings; the data winding has sections of opposite polarity so that the power supply signal imposed on the power winding cancels itself.Abstract:
The invention discloses a non-contact way to provide electrical power and two-way digital communications between a host computer and its peripheral modules, such as IC memory cards, modems, and A/D converters. A special magnetic core is employed to provide efficient transfer of both large amounts of electrical power and high speed digital communications through transformer action. Peripheral modules requiring different power supply voltages or different data voltage levels can be accommodated and intermixed with modules of other types in the same host system. The mechanical design of the connector includes detent structure to align the assembly in three dimensions, both upon mating, and under mechanical environmental stress conditions during operation. The magnetic core has both power supply and data windings; the data winding has sections of opposite polarity so that the power supply signal imposed on the data winding cancels itself.read more
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Patent
Contact-less power transfer
TL;DR: In this paper, a system and method for transferring power without requiring direct electrical conductive contacts is described, where a primary unit having a power supply and a substantially laminar charging surface having at least one conductor that generates an electromagnetic field when a current flows there through and having an charging area defined within a perimeter of the surface, the at least conductor being arranged such that electromagnetic field lines generated by the at most one conductor are substantially parallel to the plane of the ground surface or at least subtend an angle of 45° or less to the surface within the charging area.
Patent
Wireless energy transfer
Aristeidis Karalis,Andre B. Kurs,Robert Moffatt,John D. Joannopoulos,Peter H. Fisher,Marin Soljacic +5 more
TL;DR: In this paper, a first resonator structure configured to transfer energy non-radiatively with a second resonance structure over a distance greater than a characteristic size of the second resonator.
Patent
Wireless non-radiative energy transfer
TL;DR: In this paper, the authors proposed an electromagnetic energy transfer device that includes a first resonator structure receiving energy from an external power supply, and a second resonance structure is positioned distal from the first, and supplies useful working power to an external load.
Patent
Wireless energy transfer converters
TL;DR: In this article, the authors describe improved configurations for a wireless power converter that includes at least one receiving magnetic resonator configured to capture electrical energy received wirelessly through a first oscillating magnetic field characterized by a first plurality of parameters.
Patent
Adaptive inductive power supply with communication
TL;DR: In this article, an adaptive inductive ballast is provided with the capability to communicate with a remote device powered by the ballast, which can change its operating characteristics based upon information received from the remote device.
References
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Patent
Credit card with active electronics
TL;DR: In this article, a telecard consisting of a plastic card within which is sandwiched an integrated circuit powered by an electromagnetic loop formed upon the integrated circuit substrate is configured to exchange data by inductive coupling with the telecard and provides direct connection to a telephone line.
Patent
Electronic proximity identification system
TL;DR: In this paper, an identification system in which power drain is minimized is disclosed, which comprises a reader (10) including a first signal generator (12) for generating the first signal (F1) which is then radiated by an antenna (17).
Patent
Computerized transaction card with inductive data transfer
TL;DR: In this paper, a transaction card having in it a semiconductor microcomputer with data storing capability is inserted into a receptor having circuitry for interacting with the microcomputer, operating power and clock signal for the micro computer are transferred from the receptor to the card via an inductive coupling between a coil and magnetic core in the receptor and a coil, and ferromagnetic member constituting a flexible wafer inductive device ("FWID") in the card.
Patent
Memory card comprising an optical memory disc and microelectronic memory component, and apparatus for transferring information to and from such card
TL;DR: In this article, the authors present an approach for transferring data and other information between a data processing unit and a rectangular memory card which includes an optically readable data memory unit having a succession of concentric data storage tracks thereon, the card also including at least one microelectronic component which stores further information.
Patent
Electronic identification system with power input-output interlock and increased capabilities
TL;DR: In this paper, a portable electronic identification system comprised of an identifier preferably of credit card size, and a fixed position reader which couples to it over short distances by space transmitted signals is described.