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Machine translation
1. (WO1998052168) READER FOR RFID SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1998/052168    International Application No.:    PCT/US1998/010136
Publication Date: 19.11.1998 International Filing Date: 14.05.1998
Chapter 2 Demand Filed:    08.12.1998    
IPC:
G06K 7/00 (2006.01)
Applicants: AVID IDENTIFICATION SYSTEMS, INC. [US/US]; Suite 5, 3179 Hamner Avenue, Norco, CA 91760 (US) (For All Designated States Except US).
LU, Guiyang [US/US]; (US) (For US Only).
CRUZ, Michael, F. [US/US]; (US) (For US Only).
TROESCH, Peter [US/US]; (US) (For US Only)
Inventors: LU, Guiyang; (US).
CRUZ, Michael, F.; (US).
TROESCH, Peter; (US)
Agent: ABEL, David, B.; Graham & James LLP, 14th floor, 801 S. Figueroa Street, Los Angeles, CA 90017-5554 (US)
Priority Data:
60/046,419 14.05.1997 US
Title (EN) READER FOR RFID SYSTEM
(FR) LECTEUR POUR SYSTEME D'IDENTIFICATION DE RADIO-FREQUENCES
Abstract: front page image
(EN)A reader (10) capable of efficiently reading tags (12) of differing protocols in a radio frequency identification system. The tag may be either a full-duplex tag or a half-duplex tag. The reader includes a display (16), a power switch (18) and a read switch (20) for enabling operation of the reader by a user. The reader further includes a coil (60); a driver circuit (32) coupled to the coil; and a signal analyzing circuit (82, 84, 90) coupled to the coil. The signal analyzing circuit analyzes tag identification signals sensed by the coil by detecting an initial data sequence of the tag identification signals and selecting from at least two different protocols the correct protocol of the tag identification signal.
(FR)La présente invention concerne un lecteur capable de lire, de manière efficace, des étiquettes de protocoles différents dans un système d'identification de radio-fréquences.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, GW, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)