Patents by Inventor Dario L. Parola

Dario L. Parola has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Systems and methods for controlling telephone sound enhancement on a per call basis
    Patent number: 5802164
    Abstract: In a communications system containing signal enhancement circuitry capable of selectively enhancing portions of a plurality of signals carried on a corresponding plurality of channels through the signal enhancement circuitry, a system and method for controlling enhancement on a per call basis. The system includes: (1) command generation circuitry for generating an enhancement command for transmission to the signal enhancement circuitry and (2) command reception circuitry, associated with the signal enhancement circuitry, for receiving the enhancement command from the command generation circuitry and selectively enhancing the portion of the signals on the per call basis according to the enhancement command.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: September 1, 1998
    Assignee: AT&T Corp
    Inventors: Beth J. Clancy, Richard L. Else, Richard E. Le Cronier, Dario L. Parola, Roger E. Stone, Nancy Y. Tai
  • Delay-less signal processing arrangement for use in an ATM network
    Patent number: 5457684
    Abstract: An ATM cell carrying a voice-band signal originating in an STM network is processed in accordance with a particular signal processing function in an ATM mode at an ATM data rate without incurring a delay penalty that arises.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: October 10, 1995
    Assignee: AT&T IPM Corp.
    Inventors: Behram H. Bharucha, Charles W. K. Gritton, Dario L. Parola, Richard Zoccolillo
  • Method and apparatus for monitoring a network for customer signaling during the term of a call
    Patent number: 5327489
    Abstract: A network monitor and associated control system is provided to monitor a toll network for customer signaling. A multi-tone signal processor and associated control is provided such that when signaling is detected, such signaling is validated against a provisioned list. A valid signal is reported to a central control of the network switch, which takes action in response to the signal.
    Type: Grant
    Filed: December 16, 1991
    Date of Patent: July 5, 1994
    Assignee: AT&T Bell Laboratories
    Inventors: Thomas W. Anderson, Elliott Baral, Ronald S. Byrd, Bernard W. Fecht, David S. Isenberg, Larry W. Kirsch, Frederick W. Korty, Ronald B. Martin, Dario L. Parola
  • Method for selectively controlling the propagation of dual-tone multi-frequency signals within a telecommunications network
    Patent number: 5327492
    Abstract: A method for monitoring a network communications channel to detect specific DTMF triggers transmitted by a network user during either a pre-answer or a post-answer period of a call supported by the channel, and, in response to the detected DTMF triggers, controllably prohibiting the propagation of subsequent DTMF signals transmitted over the channel by the network user. Specifically, possible disruption of a communication between the network user and other parties caused by transmission of DTMF signals is eliminated by advantageously transmitting the DTMF triggers during the pre-answer period of a call. Furthermore, another deficiency of prior network-based arrangements for restricting the propagation of DTMF signals is overcome, as the invention may be practiced without the introduction of any significant propagation delay to a network.
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: July 5, 1994
    Assignee: AT&T Bell Laboratories
    Inventor: Dario L. Parola