PASSIVE DATA CARRIER HAVING MEANS FOR REDUCING THE POWER CONSUMPTION

摘要

A data carrier (1) comprises receiving means (2) for receiving an amplitude-modulated carrier signal (S) and power generating means (4) for generating d.c. power from the carrier signal (S) and pause detection means (5) for detecting pause intervals (P) in the carrier signal (S) and clock signal generating means (6) for generating a clock signal (CLK) from the carrier signal (S) and data processing means (8) for processing data modulated on the carrier signal (S) with the aid of the generated clock signal (CLK) and control means (15) which include the pause detection means (5) and which inhibit the application of the clock signal (CLK) to the data processing means (8) upon detection of a pause interval (P) for the purpose of reducing the power consumption of the data processing means (8).