초록 ▼

An encoder encodes digital signals representative of data by classifying the digital signals into first and second classes indicative of their influence on data quality and subjects them to error detection encoding capable of generating at least two error detection codes which respectively correspon

An encoder encodes digital signals representative of data by classifying the digital signals into first and second classes indicative of their influence on data quality and subjects them to error detection encoding capable of generating at least two error detection codes which respectively correspond to the first and second classes. A decoder receives the encoded digital signals classified into first and second digital signal classes, decodes the error detection codes, and generates error signals, corresponding to the respective digital signal classes, from which the quality of the received digital signals is estimated and the utility of the received digital signals is determined.

대표청구항 ▼

[ What is claimed is:] [1.] An encoder for digital communication, comprising:means for encoding data into digital signals representative of said data,means for classifying the digital signals into first and second classes indicative of their influence on data quality, andmeans for error detection en

[ What is claimed is:] [1.] An encoder for digital communication, comprising:means for encoding data into digital signals representative of said data,means for classifying the digital signals into first and second classes indicative of their influence on data quality, andmeans for error detection encoding capable of generating at least two error detection codes, wherein the at least two error detection codes respectively correspond to the first and second classes and wherein said first and second classes are overlapping.