Patents Assigned to Infosafe Systems, Inc.
  • Patent number: 5661799
    Abstract: A system including a storage medium containing encrypted information comprises: (a) a control unit for selecting information to be retrieved from the storage medium; (b) a storage medium reader for reading the selected information from the storage medium; and (c) a decryption device for decrypting at least portions of the selected information using a decryption key. The decryption key is defined, at least in part, by rules and/or data which are read from the storage medium by the storage medium reader. A different and unique key is associated with each separate item or file of encrypted information.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: August 26, 1997
    Assignee: Infosafe Systems, Inc.
    Inventors: Robert Nagel, Thomas H. Lipscomb
  • Patent number: 5592549
    Abstract: A device is disclosed for retrieving information from a secure electronic information source, wherein at least some of the information is in encrypted form and may be decrypted for use. The device comprises:(a) a computer, having an input device and a display device, for selecting information to be retrieved from the information source;(b) an information retrieval device, coupled to the computer, for retrieving the selected information from the information source;(c) a decryption device, coupled to the computer, for decrypting at least portions of the selected information retrieved from the information source; and(d) a data logging device, coupled to the computer, for maintaining a data log of the selected information as it is retrieved from said information source and decrypted. According to the invention, a unique brand code is automatically, electronically added to at least some of the selected and decrypted information, and to the data log.
    Type: Grant
    Filed: June 15, 1995
    Date of Patent: January 7, 1997
    Assignee: Infosafe Systems, Inc.
    Inventors: Robert Nagel, Thomas H. Lipscomb
  • Patent number: 5473687
    Abstract: A system for retrieving a packet of informational digital data which is stored on a secure storage medium. The informational data packet (IDP) is read from the secure storage medium and then expanded in length to form a sequence of digital data which is so large as to be inconvenient for permanent storage.
    Type: Grant
    Filed: December 29, 1993
    Date of Patent: December 5, 1995
    Assignee: Infosafe Systems, Inc.
    Inventors: Thomas H. Lipscomb, Robert H. Nagel
  • Patent number: 5394469
    Abstract: A personal computer or "host computer" and a Mass storage device are arranged on an SCSI bus. A "decryption controller", in a separate enclosure outside of the host computer, is also arranged on the SCSI bus. This controller is addressable by the host computer as if it were the mass storage device. Upon receipt of an information request, the decryption controller initiates a request to the mass storage device for the desired information, retrieves this information, decrypts it (if it is encrypted) and then passes it to the host computer. The decryption controller is thus "transparent" to the host computer.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: February 28, 1995
    Assignee: Infosafe Systems, Inc.
    Inventors: Robert Nagel, Thomas H. Lipscomb