Title:
情報電圧によって表される情報を評価する評価手段を備えたデータキャリア
Document Type and Number:
Japanese Patent JP2005529528
Kind Code:
A
Abstract:
In a data carrier ( 1 ) that is arranged to receive a signal (S) in a non-contacting manner there is provided a circuit ( 2 ) that is arranged, by using the signal (S), to generate a supply voltage (V) for parts of the circuit ( 2 ), the circuit ( 2 ) has a storage stage ( 5 ) that is arranged to store information capacitively, the information being represented by a value of an information voltage (UI) arising at the storage stage ( 5 ), which value of the information voltage (UI) is at most equal to the value of the supply voltage (V), and the circuit ( 2 ) has an evaluation stage ( 14 ) to which the information voltage can be fed and that are arranged to evaluate the information voltage (UI), with the help of a comparison voltage (UC), for the information represented by the information voltage (UI), the comparison-voltage generating stage ( 15 ) that is arranged to generate and emit the comparison voltage (UC) being implemented separately from the evaluation stage ( 14 ), and the evaluation stage ( 14 ) being arranged to receive the comparison voltage (UC).
Inventors:
Ewald, Bergler
Application Number:
JP2004512073A
Publication Date:
September 29, 2005
Filing Date:
May 16, 2003
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
G06K19/07; H04B5/02; (IPC1-7): H04B5/02; G06K19/07
Attorney, Agent or Firm:
Kenji Yoshitake
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki