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1. WO1996003713 - SECURITY ACCESS CIRCUIT USING EMBEDDED ANTENNAS

Publication Number WO/1996/003713
Publication Date 08.02.1996
International Application No. PCT/US1995/008863
International Filing Date 14.07.1995
IPC
G06K 7/08 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
7Methods or arrangements for sensing record carriers
08by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
CPC
G06K 7/10316
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
7Methods or arrangements for sensing record carriers, ; e.g. for reading patterns
10by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
10009sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
10316using at least one antenna particularly designed for interrogating the wireless record carriers
G06K 7/10336
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
7Methods or arrangements for sensing record carriers, ; e.g. for reading patterns
10by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
10009sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
10316using at least one antenna particularly designed for interrogating the wireless record carriers
10336the antenna being of the near field type, inductive coil
Applicants
  • WESTINGHOUSE ELECTRIC CORPORATION [US/US]; Westinghouse Building Gateway Center Pittsburgh, PA 15222, US
Inventors
  • LEUNG, Edward, C.; US
Agents
  • SCHRON, Dean ; Westinghouse Electric Corporation Law Dept. 11 Stanwix Street Pittsburgh, PA 15222, US
Priority Data
08/281,95228.07.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SECURITY ACCESS CIRCUIT USING EMBEDDED ANTENNAS
(FR) CIRCUIT D'ACCES DE SECURITE DOTE D'ANTENNES INTEGREES
Abstract
(EN)
A combination of elements is disclosed for use in a security access circuit (100). A first antenna (10) is embedded on a printed circuit board and a second antenna (12) is embedded on the same printed circuit board. The second antenna (12) is embedded at a position relative to the first antenna (10) selected to reduce interference between the first antenna (10) and the second antenna (12).
(FR)
On décrit une combinaison d'éléments destinés à être utilisés dans un circuit d'accès de sécurité (100). Une première antenne (10) est intégrée sur une plaquette de circuit imprimé et une deuxième antenne (12) est intégrée sur cette même plaquette. Cette deuxième antenne (12) est intégrée en une position située par rapport à la première antenne (10) de façon à limiter leurs brouillages mutuels.
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