Accession Number : AD0784827

Title :   Entropy Coded Differential Pulse Code Modulation Systems for Television.

Descriptive Note : Interim rept.,

Corporate Author : NORTH CAROLINA STATE UNIV RALEIGH DEPT OF ELECTRICAL ENGINEERING

Personal Author(s) : Goyal,Shri Krishna

Report Date : APR 1974

Pagination or Media Count : 100

Abstract : Two basic types of communication systems are presently available for information transmission: analog systems and digital systems. The analog system has the handicap that the channel adds varying amounts of random noise to the signal being transmitted. This limitation can be overcome in digital transmission systems. A digital system does not have any basic distance limitation if a reasonable signal to noise ratio is maintained. This can be accomplished through the use of regenerative repeaters. The advantage of pulse code modulation transmission have been studied by Oliver, Pierce and Shannon.

Descriptors :   *Television systems, *Pulse code modulation, Coding, Entropy, Video signals

Subject Categories : Cybernetics
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE