• DocumentCode
    273907
  • Title

    TDD-filtering and demodulation in acoustically coupled modem

  • Author

    Klier, E. ; Hrubý, J. ; Okluský, M.

  • Author_Institution
    Czechoslovak Acad. of Sci., Prague, Czechoslovakia
  • fYear
    1989
  • fDate
    5-8 Sep 1989
  • Firstpage
    532
  • Lastpage
    536
  • Abstract
    The Czechoslovak Association of the Handicapped asked the authors to help deaf people by designing an economical TDD (Telephone Device for the Deaf). Among Czechoslovak deaf the SINCLAIR ZX SPECTRUM (with the Z 80 microprocessor) is widely used. Therefore the authors have decided to implement TDD as a peripheral device to this microcomputer. There exists a great variety of possible solutions with different weight given to software and hardware parts
  • Keywords
    handicapped aids; modems; SINCLAIR ZX SPECTRUM; TDD; Telephone Device for the Deaf; acoustically coupled modem; deaf people; demodulation; filtering; peripheral device;
  • fLanguage
    English
  • Publisher
    iet
  • Conference_Titel
    Circuit Theory and Design, 1989., European Conference on
  • Conference_Location
    Brighton
  • Type

    conf

  • Filename
    51676
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=273907