Patents by Inventor Mark C. Sinclair

Mark C. Sinclair 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).

  • Publication number: 20190332840
    Abstract: The parameters of an optical code are optimized to achieve improved signal robustness, reliability, capacity and/or visual quality. An optimization program can determine spatial density, dot distance, dot size and signal component priority to optimize robustness. An optical code generator employs these parameters to produce an optical code at the desired spatial density and robustness. The optical code is merged into a host image, such as imagery, text and graphics of a package or label, or it may be printed by itself, e.g., on an otherwise blank label or carton. A great number of other features and arrangements are also detailed.
    Type: Application
    Filed: May 7, 2019
    Publication date: October 31, 2019
    Inventors: Ravi K. Sharma, Tomas Denemark, Brett A. Bradley, Geoffrey B. Rhoads, Eoin C. Sinclair, Vojtech Holub, Hugh L. Brunk, Trent J. Brundage, John F. Stach, John D. Lord, Joel R. Meyer, Tomas Filler, Ajith M. Kamath, Mark-Andrew Ray Tait, Kevin J. Hansonoda, Adnan M. Alattar
  • Patent number: 5537532
    Abstract: A distributed restoration process operated by nodes in a communications network, the process being run in a background mode, i.e. at times when a node is not operating at full capacity, the each end node of an existing path and having a higher network ID will act as master and broadcast path-finder signatures on its spans. Each node receiving a path-finder signature adds the path length of the span to the node from which it received the path-finder signature and, in turn, forwards the amended signature on its spans. The slave node on receiving path-finder signatures selects the signature corresponding to the lowest path length, this being referred to as the restoration path, and sends a return signature to notify the nodes along the existing path of the path length of the restoration path.
    Type: Grant
    Filed: June 19, 1995
    Date of Patent: July 16, 1996
    Assignee: British Telecommunications public limited company
    Inventors: Raymond S. K. Chng, Christopher P. Botham, Mark C. Sinclair
  • Patent number: 5435003
    Abstract: Restoration of connections by a distributed restoration process in a fully or partly meshed communications network of nodes, the restoration method comprising the steps of responding at a first end node of a path in the network to receipt of an indication that the path has failed to retrieve the identity of one or more nodes stored in the first end node in association with the identity of the path and constituting a stored restoration path for the path, sending a connection signature to the node at the other end of the path via the stored restoration path, responding at the other end node to receipt of a connection signature to send a confirmation signature to confirm establishment of the stored restoration path, broadcasting from the first end node in response to the receipt of the indication a path-finder signature to find a restoration path for the failed path by real-time restoration process, sending from the other node a real-time restoration path confirmation signature identifying a real-time restoratio
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: July 18, 1995
    Assignee: British Telecommunications public limited company
    Inventors: Raymond S. K. Chng, Christopher P. Botham, Mark C. Sinclair