Abstract: An electronic radio frequency (RF) identification system 10 is disclosed and claimed. The system includes an interrogator 11 and a plurality of RF transponders 12.1 to 12.n. In use, each transponder is operative in response to an interrogation signal 14 to respond with a forward error correctable data message 16.1 including base data encoded as symbol characters in accordance with a forward error correcting code, such as a Reed Solomon Code, and check characters on the base data as defined in the forward error correcting code. The interrogator 11 utilizes data relating to the forward error correcting code, the symbol characters and check characters in the received forward error correctable data message, to reconstruct the base data in the event of corruption of the forward error correctable data message during transmission.
Type:
Application
Filed:
June 24, 2005
Publication date:
October 27, 2005
Applicant:
ZIH Corp., A Delaware Corporation
Inventors:
Clive Hohberger, Christopher Gordon Turner
Abstract: A system having an RFID transceiver is adapted to communicate exclusively with a single RFID transponder located in a predetermined confined transponder target area. The system includes a magnetic coupling device comprising a magnetic flux generator responsive to a radio frequency input signal and a magnetic field pattern former. The pattern former is configured to collect flux produced by the flux generator and to form a field pattern in the location of the transponder target area. The system establishes, at predetermined transceiver power levels, a mutual magnetic coupling which is selective exclusively for a single transponder located in the transponder target area.
Type:
Application
Filed:
November 19, 2004
Publication date:
May 5, 2005
Applicant:
ZIH CORP., A DELAWARE CORPORATION WITH ITS PRINCIP
Inventors:
Boris Tsirline, Clive Hohberger, Robert Gawelczyk
Abstract: A system having an RFID transceiver is adapted to communicate exclusively with a single RFID transponder located in a predetermined confined transponder target area. The system includes a magnetic coupling device comprising a magnetic flux generator responsive to a radio frequency input signal and a magnetic field pattern former. The pattern former is configured to collect flux produced by the flux generator and to form a field pattern in the location of the transponder target area. The system establishes, at predetermined transceiver power levels, a mutual magnetic coupling which is selective exclusively for a single transponder located in the transponder target area.
Type:
Grant
Filed:
March 11, 2003
Date of Patent:
February 1, 2005
Assignee:
ZIH Corp., a Delaware Corporation with its principal office in Hamilton, Bermuda
Inventors:
Boris Y. Tsirline, Clive P. Hohberger, Robert Gawelczyk
Abstract: The present invention is a laminate media, in the form of a continuous strip of carrier-less, pre-cut plastic patch protections, connected by perforations. The invention further describes both a method for separating the patches from each other by stressing the perforated patch area without stopping the driving process and a cassette within which the separation process occurs.