Invention Grant
- Patent Title: Apparatus and method for communicating with an RFID transponder
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Application No.: US14069315Application Date: 2013-10-31
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Publication No.: US09613242B2Publication Date: 2017-04-04
- Inventor: Karl Torchalski , Daniel F. Donato
- Applicant: ZIH Corp.
- Applicant Address: US IL Lincolnshire
- Assignee: ZIH Corp.
- Current Assignee: ZIH Corp.
- Current Assignee Address: US IL Lincolnshire
- Main IPC: G06F15/12
- IPC: G06F15/12 ; G06K7/10 ; B41J3/407 ; G06K17/00 ; H04B5/00

Abstract:
A system having a UHF RFID transceiver is adapted to communicate exclusively with a single electro-magnetically coupled transponder located in a predetermined confined transponder operating region. The system includes a near field coupling device comprising a plurality of lines connected in parallel with an unmatched load. The near field coupling device may be formed, for example on a printed circuit board with a plurality of electrically interconnected traces and a ground plane. The system establishes, at predetermined transceiver power levels, a mutual electro-magnetic coupling which is selective exclusively for a single transponder located in a defined transponder operating region. Also included are methods for selective communication with the transponder in an apparatus such as a printer-encoder.
Public/Granted literature
- US20140132399A1 Apparatus and Method for Communicating with an RFID Transponder Public/Granted day:2014-05-15
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