Patents by Inventor Walter S. Downs, III

Walter S. Downs, III 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).

  • Subscriber line interface in a telecommunications exchange
    Patent number: 5751717
    Abstract: A TR-8 compatible Remote Terminal (RT) with 96 subscriber line capacity is partially or wholly replaced with one or more D4 channel banks each comprising 24 subscriber line capacity without changing the TR-8 interface module within the servicing telecommunications exchange. The D4 channel bank is connected via a T-1 digital link to any one of the B, C, and D links within the TR-8 interface module. A-B bit pattern data and time slot assignments communicated between the D4 channel bank and the TR-8 interface module are converted to be compatible with each other. Connecting a D4 channel bank to a TR-8 interface module allows small telecommunications service providers to more economically provide line access to sparsely populated customer sites.
    Type: Grant
    Filed: March 8, 1996
    Date of Patent: May 12, 1998
    Assignee: Ericsson, Inc.
    Inventors: Mangalore S. Babu, Jinen K. Nahar, Gregory B. Rogers, Walter S. Downs, III