Title:
非接触誘導通信用に作成されたトランスポンダ
Document Type and Number:
Japanese Patent JP4097708
Kind Code:
B2
Abstract:
A transponder (1) for the contactless communication with a base station (2) comprises an antenna resonant circuit (10) for receiving a modulated HF signal (5), signal processing means (13) for processing the modulated HF signal and for supplying a data signal (DS) and a clock signal (CLK), and data processing means (23) arranged to receive the data signal (DS) and the clock signal (CLK) and to process the data signal (DS), the clock signal (CLK) defining the processing speed of the data processing means (23) and the data processing means (23) being arranged to receive reset information (RI) for terminating the processing of the data signal (DS), the transponder (1) further comprising a frequency detector (31) arranged to receive the clock signal (CLK) and adapted to compare the frequency of the clock signal (CLK) with at least one limit frequency (fG1) and to supply the reset information (RI) to the data processing means (23).
Inventors:
Berhel Dominic Joseph
Ebel Wolfgang
Ebel Wolfgang
Application Number:
JP52933998A
Publication Date:
June 11, 2008
Filing Date:
March 16, 1998
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
H04B1/59; G06K7/00; G06K19/07
Domestic Patent References:
| JP5135217A | ||||
| JP5028330A |
Attorney, Agent or Firm:
Kosaku Sugimura
Junko Sugimura
Hiroshi Tokunaga
Kazuaki Takami
Umemoto Masao
Junko Sugimura
Hiroshi Tokunaga
Kazuaki Takami
Umemoto Masao