Patents by Inventor David G. Ashworth

David G. Ashworth 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).

  • Patent number: 6950791
    Abstract: A method for describing objects in a virtual space. In one embodiment, each object is a URL, which has been assigned to a system of hierarchical categories. The objects have been mapped to a map region, each object having been given a location within the map region. Each category within the map region is defined as a polygon area covering all of the category's objects as well as all of the category's subcategories. A client computer can request a portion of the map to be visualized. A host computer receives the request and retrieves the appropriate objects and categories from a database. The host computer forms the response to the request using a protocol which describes facts, location, and metadata about the objects and categories. The encoded response is delivered to the client. The client decodes the response and renders the objects and categories for the user. Different types of clients can concurrently request object descriptions from the server.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: September 27, 2005
    Assignee: Antartica Systems, Inc.
    Inventors: Tim W. Bray, David G. Ashworth
  • Patent number: 6300863
    Abstract: A system for locating and monitoring electronic devices utilizing a security system that is secretly and transparently embedded within the software, firmware, or hardware of a computer. This security system initiates the client computer to periodically and conditionally call a host system to provide unique identifying indicia and location information. In one embodiment, the security system calls the host through a public switched telephone network (PSTN) and transmits the indicia in encoded form. In an alternative embodiment, which may be incorporated concurrently with the PSTN application, the security system calls the host system through the Internet and provides the host with indicia encoded within the DNS query sent. The host system is able to identify the calling computer from the indicia and is able to physically locate the computer through either caller identification or by referencing the Internet links which were used to connect the calling computer with the host system.
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: October 9, 2001
    Assignee: Absolute Software Corporation
    Inventors: Christian Cotichini, Fraser Cain, David G. Ashworth, Peter Michael Bruce Livingston, Gabor Solymar
  • Patent number: 6269392
    Abstract: A system for locating and monitoring electronic devices utilizing a security system that is secretly and transparently embedded within the software, firmware, or hardware of the electronic device. The security system may be embodied in internal memory devices such as ROM BIOS, ROM, Flash ROM, EPROM, EEPROM, electronic components such as modem, CPU, or hardwired circuits or integrated circuits of a computer. This security system initiates the computer to periodically and conditionally call a host system to provide unique identifying indicia and location information. In one embodiment, the security system calls the host through a public switched telephone network (PSTN) and transmits the indicia in encoded form. In an alternative embodiment, which may be incorporated concurrently with the PSTN application, the security system calls the host system through the Internet and provides the host with indicia encoded within the DNS query sent.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: July 31, 2001
    Inventors: Christian Cotichini, Fraser Cain, David G. Ashworth, Peter Michael Bruce Livingston, Gabor Solymar, Philip B. Gardner, Timothy S. Woinoski