Patents by Inventor Richard L. Colter

Richard L. Colter 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).

  • Reducing cross-phase modulation using group delay
    Patent number: 8055140
    Abstract: According to particular embodiments, reducing cross-phase modulation includes sending instructions to a phase modulation array comprising channel pixel sets that modulate phases of channels. The channel pixel sets comprise a first channel pixel set that modulates a first phase of a first channel and a second channel pixel set that modulates a second phase of a second channel that uses a phase modulation format. The first channel pixel set is instructed to modulate the first phase at a first constant phase. The second channel pixel set is instructed to modulate the second phase at a second constant phase different from the first constant phase in order to create a group delay between the first channel and the second channel.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: November 8, 2011
    Assignee: Fujitsu Limited
    Inventors: Olga I. Vassilieva, Richard L. Colter, Daniel Bihon, Paparao Palacharla
  • Setting up a circuit in a network
    Patent number: 8041218
    Abstract: In particular embodiments, setting up a circuit in a network includes establishing by control plane logic that planning pre-conditions for planning a circuit have been satisfied, and initiating the planning of the circuit. The control plane logic establishes that reservation pre-conditions for reservation of a resources for the circuit have been satisfied and initiates the reservation of the resources for the circuit. The control plane logic establishes that activation pre-conditions for activation of the circuit have been satisfied and initiates the activation of the circuit.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: October 18, 2011
    Assignee: Fujitsu Limited
    Inventors: Snigdho C. Bardalai, Sanjay Gera, Richard L. Colter, Fredrick S. Gruman, Michael D. White
  • REDUCING CROSS-PHASE MODULATION USING GROUP DELAY
    Publication number: 20110109953
    Abstract: According to particular embodiments, reducing cross-phase modulation includes sending instructions to a phase modulation array comprising channel pixel sets that modulate phases of channels. The channel pixel sets comprise a first channel pixel set that modulates a first phase of a first channel and a second channel pixel set that modulates a second phase of a second channel that uses a phase modulation format. The first channel pixel set is instructed to modulate the first phase at a first constant phase. The second channel pixel set is instructed to modulate the second phase at a second constant phase different from the first constant phase in order to create a group delay between the first channel and the second channel.
    Type: Application
    Filed: November 10, 2009
    Publication date: May 12, 2011
    Applicant: Fujitsu Limited
    Inventors: Olga I. Vassilieva, Richard L. Colter, Daniel Bihon, Paparao Palacharla
  • Setting Up A Circuit In A Network
    Publication number: 20090269065
    Abstract: In particular embodiments, setting up a circuit in a network includes establishing by control plane logic that planning pre-conditions for planning a circuit have been satisfied, and initiating the planning of the circuit. The control plane logic establishes that reservation pre-conditions for reservation of a resources for the circuit have been satisfied and initiates the reservation of the resources for the circuit. The control plane logic establishes that activation pre-conditions for activation of the circuit have been satisfied and initiates the activation of the circuit.
    Type: Application
    Filed: April 25, 2008
    Publication date: October 29, 2009
    Applicant: Fujitsu Limited
    Inventors: Snigdho C. Bardalai, Sanjay Gera, Richard L. Colter, Fredrick S. Gruman, Michael D. White