• DocumentCode
    1381713
  • Title

    A tone disabler for bell system 1A echo suppressors

  • Author

    Bugbee, L. F.

  • Author_Institution
    Bell Telephone Laboratories, Inc., Murray Hill, N. J.
  • Volume
    80
  • Issue
    6
  • fYear
    1962
  • Firstpage
    596
  • Lastpage
    600
  • Abstract
    The capability of simultaneous 2-way transmission over the direct distance dialing (DDD) network will allow data systems to provide more efficient error detection and correction, system control, and circuit assurance schemes. This capability is made available by the development of a tone disabler which will inhibit the suppression function of any echo suppressors in the connection upon command of a conditioning tone and allow normal operation on voice transmission. This paper describes the engineering design and operational features of the tone disabler.
  • Keywords
    Data systems; Delay; Noise; Propagation losses; Relays; Sensitivity; Speech;
  • fLanguage
    English
  • Journal_Title
    American Institute of Electrical Engineers, Part I: Communication and Electronics, Transactions of the
  • Publisher
    ieee
  • ISSN
    0097-2452
  • Type

    jour

  • DOI
    10.1109/TCE.1962.6373163
  • Filename
    6373163
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1381713