초록 ▼

A data receiving channel has a signal converter that converts a received signal into a digital signal. The digital signal is then applied to a Viterbi detector that will provide, as an output, a stream of digital signals that have a maximum likelihood of being accurate. Error correction is performed

A data receiving channel has a signal converter that converts a received signal into a digital signal. The digital signal is then applied to a Viterbi detector that will provide, as an output, a stream of digital signals that have a maximum likelihood of being accurate. Error correction is performed at the bit level through calculation of the error between the received signal and the maximum likelihood estimate signal produced by the Viterbi detector.

대표청구항 ▼

[ I claim:] [1.] A data receiving channel comprising:a signal converter means for converting an input signal to a converted signal having predefined characteristics;a Viterbi detector means for generating an output signal of data blocks with each data block having a predefined number of symbols from

[ I claim:] [1.] A data receiving channel comprising:a signal converter means for converting an input signal to a converted signal having predefined characteristics;a Viterbi detector means for generating an output signal of data blocks with each data block having a predefined number of symbols from the converted signal;error correction means for detecting and correcting errors in the data blocks, said error correction means including a target channel filter means for filtering the output signal with the predefined characteristics to provide a target channel signal that is an estimate of the converted signal, anda comparator means for providing an error signal from a comparison of the target channel signal and the converted signal.