Patent ID: 6115429
Filing Date: 2000-09-05
Classification: H04B,H04L

Abstract:
A receiver for converting a modulated signal received from a media having a periodic wave in it into a data bit, a predetermined data period within each wave period of the periodic wave being used for data communications, each data period comprising at least one predetermined bit period and the modulated signal being received within said bit period of one data period, the receiver comprising:(1) synchronization means for synchronizing the periodic wave and generating a SYNC signal when a wave period is detected;(2) a signal converter for converting signals contained within said bit period of a data period after each SYNC signal into digital samples;(3) threshold means for generating an adaptive threshold according to the digital samples converted from said bit periods of a plurality of data periods; and(4) data detecting means for converting the digital samples converted from said modulated signal into the data bit by using the adaptive threshold.