Patents by Inventor Erich Tongi

Erich Tongi 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).

  • TDM switching network for coded messages
    Patent number: 3983330
    Abstract: A time-space-time division switching network for transmitting multiplexed signals. A speech memory is associated with each incoming time switch for the first stage and with each outgoing time switch for the final stage. The intermediate space switching stage has plural parallel planes which are independent of one another and each plane is capable of transmitting messages in serial form. The memories allow regrouping of messages from parallel planes into serial form for output over a single multiplex line.
    Type: Grant
    Filed: April 11, 1975
    Date of Patent: September 28, 1976
    Assignee: International Standard Electric Corporation
    Inventor: Erich Tongi