Patents by Inventor Charles W. Roark

Charles W. Roark 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: 20230350780
    Abstract: In some implementations, a system may receive an event log including event data associated with a plurality of events that were performed by one or more external devices including the IoT device. Accordingly, the system may parse the event log to identify activity data, from the event data, associated with at least one activity that includes one or more events of the plurality of events. The system may further generate a case associated with the at least one activity and including information generated based on the activity data and may perform a process mining operation on the case including the activity data.
    Type: Application
    Filed: April 28, 2022
    Publication date: November 2, 2023
    Inventors: Charles W. Roark, Mounika Ayila, Prateek Kulkarni
  • Publication number: 20220294027
    Abstract: A battery management system is disclosed herein. The battery management system may monitor a charge cycle of a battery. The battery management system may determine a degradation rate of the battery. The battery management system may determine a usage pattern of the battery based on usage of the battery during a time period. The battery management system may determine, using a battery analysis model, a quantity of remaining charge cycles of the battery based on the degradation rate and the usage pattern. The battery analysis model may be trained based on historical data associated with historical usage of one or more other batteries. The battery management system may determine a status of the battery based on the quantity of remaining charge cycles and the degradation rate. The battery management system may perform, based on a time period associated with a remaining useful life, an action associated with the battery.
    Type: Application
    Filed: March 12, 2021
    Publication date: September 15, 2022
    Inventors: Mukesh V. Choudhary, Ajay Sood, Charles W. Roark
  • Patent number: 7006469
    Abstract: A method and protocol for dynamic downstream and upstream frequency assignment in a localized microwave distribution system. Downstream frequencies can be assigned via a base station periodic broadcast of a frequency assignment table for a home common control channel in each base station downstream frequency. Customer premise equipment monitors the home common control channel for a frequency assignment message, which preferably includes a table mapping each customer premise equipment, or that equipment for which there has been no recent upstream communication. Downstream frequencies may also be assigned by a customer premise equipment request to a base station sent over a common control channel associated with an upstream frequency associated with a downstream frequency identified during a scan of downstream frequencies. A modified aloha contention algorithm is used if multiple customer premise equipment requests conflict.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: February 28, 2006
    Assignee: Cisco Technology, Inc.
    Inventors: Charles W. Roark, Douglas B. Weiner, Andrew Cilia, Mitchel B. Stiles
  • Patent number: 6404751
    Abstract: A method and protocol for dynamic downstream and upstream frequency assignment in a localized microwave distribution system. Downstream frequencies can be assigned via a base station periodic broadcast of a frequency assignment table for a home common control channel in each base station downstream frequency. Customer premise equipment monitors the home common control channel for a frequency assignment message, which preferably includes a table mapping each customer premise equipment, or that equipment for which there has been no recent upstream communication. Downstream frequencies may also be assigned by a customer premise equipment request to a base station sent over a common control channel associated with an upstream frequency associated with a downstream frequency identified during a scan of downstream frequencies. A modified aloha contention algorithm is used if multiple customer premise equipment requests conflict.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: June 11, 2002
    Assignee: Crisco Technology, Inc.
    Inventors: Charles W. Roark, Douglas B. Weiner, Andrew Cilia, Mitchel B. Stiles
  • Patent number: 6226280
    Abstract: A method is provided for allocating and de-allocating transmission resources in a local multipoint distribution services system. In the method, one of an off-hook after idle signal and an incoming call request signal is detected. A frequency and a time slot for a call are assigned at a base system in response to the detection of the off-hook after idle signal or the incoming call request signal. A customer premises equipment unit is tuned to the assigned frequency in order to deliver the call.
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: May 1, 2001
    Assignee: Texas Instruments Incorporated
    Inventors: Charles W. Roark, Michael L. Robinson, Andrew Cilia