Patents by Inventor Stephen F. Tarr

Stephen F. Tarr 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: 6978314
    Abstract: A system for network device location, includes an address server for associating IP addresses of devices on the network with a group name; a discoverable device located on a first subnet of the network, wherein the discoverable device has an IP address, and wherein the discoverable device's IP address is associated with the group name; and a discovering device, located on a second subnet of the network, for creating a list of known subnets and known devices on the network; for querying the name server for a list of IP addresses associated with the group name; for contacting each returned address of a discoverable device associated with the group name for the discoverable device's IP subnet information; for determining the discoverable device's subnet; and for adding the discoverable device and its subnet to the list.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: December 20, 2005
    Assignee: Xerox Corporation
    Inventor: Stephen F. Tarr
  • Publication number: 20030163583
    Abstract: A system for network device location, includes an address server for associating IP addresses of devices on the network with a group name; a discoverable device located on a first subnet of the network, wherein the discoverable device has an IP address, and wherein the discoverable device's IP address is associated with the group name; and a discovering device, located on a second subnet of the network, for creating a list of known subnets and known devices on the network; for querying the name server for a list of IP addresses associated with the group name; for contacting each returned address of a discoverable device associated with the group name for the discoverable device's IP subnet information; for determining the discoverable device's subnet; and for adding the discoverable device and its subnet to the list.
    Type: Application
    Filed: February 26, 2002
    Publication date: August 28, 2003
    Applicant: Xerox Corporation
    Inventor: Stephen F. Tarr
  • Patent number: 6496859
    Abstract: A managment station responds to an HTTP request for device discovery by spawning a device discovery task that creates a linked list and first broadcasts UDP based requests out on a subnetwork for devices on the same subnetwork to respond. Device information from responding network devices is stored in a linked list. This process is repeated until a specified length of time has expired. Then a second broadcast request is sent out that includes a list of printers that have responded so that they will nor keep responding. The list is updated by responses until there are no more responses. Any nodes in the linked list that still only have a network address are upadated by sending a unicast SNMP request those network addresses in order to get the additional information. The data from the linked list is sent back to the HTTP client.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: December 17, 2002
    Assignee: Xerox Corporation
    Inventors: Joydeep Roy, Stephen F. Tarr
  • Publication number: 20020188759
    Abstract: A management station responds to an HTTP request for device discovery by spawning a device discovery task that creates a linked list and first broadcasts UDP based requests out on a subnetwork for devices on the same subnetwork to respond. Device information from responding network devices is stored in a linked list. This process is repeated until a specified length of time has expired. Then a second broadcast request is sent out that includes a list of printers that have responded so that they will nor keep responding. The list is updated by responses until there are no more responses. Any nodes in the linked list that still only have a network address are updated by sending a unicast SNMP request those network addresses in order to get the additional information. The data from the linked list is sent back to the HTTP client.
    Type: Application
    Filed: August 9, 2002
    Publication date: December 12, 2002
    Applicant: Xerox Corporation
    Inventors: Joydeep Roy, Stephen F. Tarr
  • Publication number: 20020062366
    Abstract: A managment station responds to an HTTP request for device discovery by spawning a device discovery task that creates a linked list and first broadcasts UDP based requests out on a subnetwork for devices on the same subnetwork to respond. Device information from responding network devices is stored in a linked list. This process is repeated until a specified length of time has expired. Then a second broadcast request is sent out that includes a list of printers that have responded so that they will nor keep responding. The list is updated by responses until there are no more responses. Any nodes in the linked list that still only have a network address are upadated by sending a unicast SNMP request those network addresses in order to get the additional information. The data from the linked list is sent back to the HTTP client.
    Type: Application
    Filed: November 25, 1998
    Publication date: May 23, 2002
    Inventors: JOYDEEP ROY, STEPHEN F. TARR