Patents by Inventor Avigdor Grynberg

Avigdor Grynberg 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).

  • User authorization verification apparatus for computer systems including a central device and a plurality of pocket sized remote units
    Patent number: 4601011
    Abstract: A remote user authorization verification system including a central device having data imput and output, memory and data comparison facilities, and a plurality of hand held, pocket size remote units arranged for data communication with the central device by means of conventional telecommunications devices, such as a telephone, the pocket size remote units having information input keying apparatus, memory apparatus and enciphering apparatus and being operative for providing an enciphered verification code to the central device for verification of the authorized status of the user.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: July 15, 1986
    Inventor: Avigdor Grynberg