• DocumentCode
    1231182
  • Title

    Recent Progress in Communication Theory in Japan

  • Author

    Taki, Yasuo ; Miyakawa, Hiroshi ; Akiyama, Minoru

  • Author_Institution
    Univ. of Tokyo, Tokyo, Japan
  • Volume
    20
  • Issue
    4
  • fYear
    1972
  • fDate
    8/1/1972 12:00:00 AM
  • Firstpage
    696
  • Lastpage
    707
  • Abstract
    This paper reviews recent progress in communication theory in Japan, mainly in the past three years. The topics to be discussed include 1) waveform transmission in band-limited channels and active transmission lines, 2) source-coding problems such as optimal quantizing characteristics, delta modulation, and linear transformation, 3) transmission codes, where mainly multilevel codes have been discussed, 4) new information transmission and modulation schemes, and 5) theories of traffic and switchingsystem design.
  • Keywords
    Communication switching; Delta modulation; Digital communication; Digital modulation; Electrical engineering; Intersymbol interference; Research and development; Telecommunication traffic; Telegraphy; Telephony;
  • fLanguage
    English
  • Journal_Title
    Communications, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0090-6778
  • Type

    jour

  • DOI
    10.1109/TCOM.1972.1091224
  • Filename
    1091224