Noncontact tag, control method therefor and noncontact ID...

Details Noncontact tag, control method therefor and noncontact ID... Noncontact tag, control method therefor and noncontact ID...

2008-07-01

2008-07-01

Lee, Seung H (Department: 2887)

Registers

Coded record sensors

Particular sensor structure

C235S380000, C235S451000, C235S493000, C375S324000

Reexamination Certificate

active

11360587

ABSTRACT:
The present invention is to provide a noncontact tag, comprising: a clock extraction unit for extracting a clock from a received carrier wave; a demodulation unit for outputting a demodulated signal comprising a logic signal whose logic state changes responding to each of a non-modulation period and modulation period of the carrier wave; a division unit for generating a division clock from the clock input from the clock extraction unit and also restraining the division clock from being output according to a logic state of the demodulated signal; and a decoding unit for decoding information included in the carrier wave by using a value of counter driven by the division clock.

REFERENCES:
patent: 5444222 (1995-08-01), Inoue
patent: 5864588 (1999-01-01), Miyamoto
patent: 6886752 (2005-05-01), Murayama et al.
patent: 2005/0087599 (2005-04-01), Ward et al.
patent: 2000-172806 (2000-06-01), None
patent: 2003-283366 (2003-10-01), None
patent: 2003-333112 (2003-11-01), None

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