Patents Assigned to Cselt-Centro Stude e Laboratori Telecomunicazioni S.p.A.
  • System for bidirectional digital transmission with echo cancellation
    Patent number: 4686703
    Abstract: A bidirectional transmission system with echo cancellation allows simultaneous interchange of digital information between an exchange and subscribers on a single transmission line. Data flows are transmitted by packets separated by short silence intervals within which clock signals are extracted and echo-cancellation adjustment is accomplished. Use of an adaptive equalizer and a single sampling operation per sampling period are possible.
    Type: Grant
    Filed: March 21, 1985
    Date of Patent: August 11, 1987
    Assignee: Cselt-Centro Stude e Laboratori Telecomunicazioni S.p.A.
    Inventors: Carlo M. Bruno, Gianfranco Panarotto, Adler Tofanelli