Patent ID: 6069924
Filing Date: 2000-05-30
Classification: H04L

Abstract:
A differential detector imparted with error correcting function, comprising:first detecting means for delaying an input signal substantially by one symbol period to obtain a first differential input signal for thereby generating a first detection signal corresponding to a phase difference between said input signal and said first differential input signal;second detecting means for delaying said input signal substantially by two symbol periods to obtain a second differential input signal for thereby generating a second detection signal corresponding to a phase difference between said input signal and said second differential input signal;third detecting means for delaying said input signal substantially by four symbol periods to obtain a third differential input signal for thereby generating a third detection signal corresponding to a phase difference between said input signal and said third differential input signal;first error correcting means for carrying out error correction for said second detection signal by making use of said third detection signal;delay means for delaying said first detection signal substantially by two symbol periods; andsecond error correction means for carrying out error correction for said first detection signal outputted from said delay means by making use of an output signal of said first error correction means.