Non-contact data and power connector for computer based modules
April 20, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesData carrier, method and apparatus for placing data on the carrier, and device for reading data from the carrier Electronic identification system with power input-output interlock and increased capabilities Tuning arrangement for interfacing credit card-like device to a reader system Identification card Electronic proximity identification system Electronic proximity identification and recognition system with isolated two-way coupling Computerized transaction card with inductive data transfer Credit card with active electronics Flexible inductor IC card processing method and processing device therefor, and IC card InventorApplicationNo. 870887 filed on 04/20/1992US Classes:307/104, ELECTROMAGNET OR HIGHLY INDUCTIVE SYSTEMS235/380, Credit or identification card systems336/184, Coils having different axis or on different core legs336/200, Printed circuit-type coil336/215, Three or more336/226Figure "8" sectionExaminersPrimary: Pellinen, A. D.Assistant: Osborn, David Attorney, Agent or FirmInternational ClassesG06F 013/38H01F 023/00 AbstractThe 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.Other References
Field of SearchTransformer connectionsELECTROMAGNET OR HIGHLY INDUCTIVE SYSTEMS RELATIVELY MOVABLE COILS With core About axis normal to other coil axis Similar spherical-shaped coils Tubular stationary coil Angularly movable Movable along or parallel to other coil axis About axis parallel to or coaxial with the other coil axis Angularly and linearly movable coils Plural coils movable with respect to a coil Nonsymmetrically pivoted coil movable on axis transverse to other coil axis Coil and core movable as a unit Angularly movable Coils having different axis or on different core legs MULTIPLE MAGNETIC PATHS Three or more Printed circuit-type coil Figure "8" section Planar type With core having an air gap or magnetic shunt With core having a gap, aperture, or slot CONTROL CIRCUITS FOR ELECTROMAGNETIC DEVICES Including housing Coil structure or material With permeability tuning means With variable coupling means Credit or identification card systems Magnetic Ferroelectric Magnetic Plural diagonal Tree Crossover Woven | |
