Global Patent Index - EP 0995166 A1

EP 0995166 A1 2000-04-26 - SYSTEM FOR ENCODED RF AND ENCODED MAGNETIC FIELD COMMUNICATION AND METHOD THEREFOR

Title (en)

SYSTEM FOR ENCODED RF AND ENCODED MAGNETIC FIELD COMMUNICATION AND METHOD THEREFOR

Title (de)

SYSTEM FÜR KODIERTE RF-KOMMUNIKATION UND FÜR KODIERTE MAGNETISCHE KOMMUNIKATION UND VERFAHREN DAFÜR

Title (fr)

SYSTEME DE COMMUNICATION DE FREQUENCES RADIOELECTRIQUES CODEES ET D'UN CHAMP MAGNETIQUE CODE, ET PROCEDE ASSOCIE

Publication

EP 0995166 A1 (EN)

Application

EP 99921714 A

Priority

  • US 9909893 W
  • US 7473098 A

Abstract (en)

[origin: WO9957676A1] A wireless security system combines encoded RF and encoded magnetic field operation into a base unit device and a remote unit device, overcoming the limitations of RF only or magnetic field only wireless security devices. The base unit is comprised of a power supply, a base processing unit, an RF receiver and a base inductor-capacitor (LC) transceiver. The base processing unit is capable of controlling both encoded RF and encoded magnetic field operation. The remote unit is comprised of a battery, a remote processing unit, an RF transmitter, a remote magnetic field converter circuit, manual control and an energy storage device. The remote processing unit, which is capable of controlling both encoded RF and encoded magnetic field operation, is implemented on a single, monolithic integrated circuit. The remote unit device can be miniaturized to relative smallness to the extent that it can be embedded, for example, within an automobile key. The remote unit device can convert magnetic field energy to DC electrical energy for the purposes of supplying power to the remote unit device, conserving battery power and re-charging the battery.

IPC 1-7 (main, further and additional classification)

G06K 7/00

IPC 8 full level (invention and additional information)

G06K 7/10 (2006.01); G06K 17/00 (2006.01); G06K 19/07 (2006.01); G07C 9/00 (2006.01); G08B 25/10 (2006.01); H02J 17/00 (2006.01); H04B 1/04 (2006.01); H04B 5/02 (2006.01)

CPC (invention and additional information)

G06K 19/0701 (2013.01); G06K 19/0723 (2013.01); G07C 9/00309 (2013.01); G07C 2009/00603 (2013.01); G07C 2009/00777 (2013.01); G07C 2009/00793 (2013.01)

Citation (search report)

See references of WO 9957676A1

Designated contracting state (EPC)

CH DE ES FR GB IT LI NL SE

EPO simple patent family

WO 9957676 A1 19991111; WO 9957676 A8 20000106; EP 0995166 A1 20000426; JP 2002514020 A 20020514

INPADOC legal status


2004-06-09 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20031202

2000-04-26 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000128

2000-04-26 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): CH DE ES FR GB IT LI NL SE