Patents by Inventor Ray C. Mascia

Ray C. Mascia 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).

  • Direct access coupler
    Patent number: 4203006
    Abstract: A direct access coupler for connecting a piece of terminal equipment, such as a modem to a telephone line pair, the coupler being of reduced size achieved in part by the use of a miniaturized isolation transformer and a constant current circuit to divert the off-hook current which would otherwise flow through the isolation transformer or a current-shunting choke and by the use of both an optical isolator off-hook circuit and an optical isolator ring detector circuit.
    Type: Grant
    Filed: April 20, 1978
    Date of Patent: May 13, 1980
    Assignee: Prentice Corporation
    Inventor: Ray C. Mascia