Patents by Inventor Harry Worstell

Harry Worstell 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: 10143008
    Abstract: A method includes transmitting a first message during a first time interval of a frame from a device. Transmission of the first message is followed by a second time interval of the frame. The method further includes transmitting a second message during the second time interval. The second message is followed by a third time interval that is shorter than the second time interval. The third time interval includes a contention-free period, a contention period, or a combination thereof.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: November 27, 2018
    Assignee: AT&T INTELLECTUAL PROPERTY II, L.P.
    Inventors: Lusheng Ji, Robert Miller, Harry Worstell
  • Patent number: 9506784
    Abstract: A material medium, such as an optical fiber or electrical cable, is used to carry services. The material medium is monitored with at least one diagnostic sensor. The diagnostic sensor may measure the operational health of the material medium, or may measure local environmental conditions around the material medium.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: November 29, 2016
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Constance Coty, Lusheng Ji, Robert Miller, Harry Worstell
  • Publication number: 20160088656
    Abstract: A method includes transmitting a first message during a first time interval of a frame from a device. Transmission of the first message is followed by a second time interval of the frame. The method further includes transmitting a second message during the second time interval. The second message is followed by a third time interval that is shorter than the second time interval. The third time interval includes a contention-free period, a contention period, or a combination thereof.
    Type: Application
    Filed: December 4, 2015
    Publication date: March 24, 2016
    Inventors: Lusheng Ji, Robert Miller, Harry Worstell
  • Patent number: 9247568
    Abstract: A method includes receiving a beacon message at a wireless network device. The beacon message is followed by a beacon time interval. The method further includes receiving a thin beacon message during the beacon time interval. The thin beacon message is followed by a thin beacon time interval that is shorter than the beacon time interval. The thin beacon time interval includes a contention-free period, a contention period, or a combination thereof.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: January 26, 2016
    Assignee: AT&T INTELLECTUAL PROPERTY II, L.P.
    Inventors: Lusheng Ji, Robert Miller, Harry Worstell
  • Patent number: 8923343
    Abstract: In a wireless local area network, a first and second access point in which the RF coverage areas overlap are synchronized by positioning a monitor station within the overlap area. The monitor station receives beacon frames from both access points and records the arrival times. A manager in communication with both access points and the monitor station calculates a retardation interval and issues a control command to the second access point to retard transmission of its beacon frame. The retardation interval is calculated such that the contention-free period of the second access point does not overlap the contention-free period of the first access point. The manager may also issue control commands to the first and second access points to adjust their contention-free periods.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: December 30, 2014
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Lusheng Ji, Robert Miller, Harry Worstell
  • Publication number: 20130294438
    Abstract: In a wireless local area network, a first and second access point in which the RF coverage areas overlap are synchronized by positioning a monitor station within the overlap area. The monitor station receives beacon frames from both access points and records the arrival times. A manager in communication with both access points and the monitor station calculates a retardation interval and issues a control command to the second access point to retard transmission of its beacon frame. The retardation interval is calculated such that the contention-free period of the second access point does not overlap the contention-free period of the first access point. The manager may also issue control commands to the first and second access points to adjust their contention-free periods.
    Type: Application
    Filed: July 8, 2013
    Publication date: November 7, 2013
    Inventors: Lusheng Ji, Robert Miller, Harry Worstell
  • Publication number: 20130259018
    Abstract: A method includes receiving a beacon message at a wireless network device. The beacon message is followed by a beacon time interval. The method further includes receiving a thin beacon message during the beacon time interval. The thin beacon message is followed by a thin beacon time interval that is shorter than the beacon time interval. The thin beacon time interval includes a contention-free period, a contention period, or a combination thereof.
    Type: Application
    Filed: May 24, 2013
    Publication date: October 3, 2013
    Inventors: Lusheng Ji, Robert Miller, Harry Worstell
  • Patent number: 8503486
    Abstract: In a wireless local area network, a first and second access point in which the RF coverage areas overlap are synchronized by positioning a monitor station within the overlap area. The monitor station receives beacon frames from both access points and records the arrival times. A manager in communication with both access points and the monitor station calculates a retardation interval and issues a control command to the second access point to retard transmission of its beacon frame. The retardation interval is calculated such that the contention-free period of the second access point does not overlap the contention-free period of the first access point. The manager may also issue control commands to the first and second access points to adjust their contention-free periods.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: August 6, 2013
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Lusheng Ji, Robert Miller, Harry Worstell
  • Patent number: 8472463
    Abstract: Certain exemplary embodiments comprise a method that can comprise wirelessly transmitting a thin Beacon message from an Access Point in a wireless local area network cell. The thin Beacon message can be transmitted during a superframe subsequent to a Beacon message. The thin Beacon message can be transmitted at a predetermined thin Beacon time interval. The time period between consecutive Beacon and/or thin Beacon messages can be divided further into a thin CFP and a thin CP.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: June 25, 2013
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Lusheng Ji, Robert Miller, Harry Worstell
  • Publication number: 20120089367
    Abstract: A material medium, such as an optical fiber or electrical cable, is used to carry services. The material medium is monitored with at least one diagnostic sensor. The diagnostic sensor may measure the operational health of the material medium, or may measure local environmental conditions around the material medium.
    Type: Application
    Filed: October 19, 2011
    Publication date: April 12, 2012
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Constance Coty, Lusheng Ji, Robert Miller, Harry Worstell
  • Publication number: 20120044924
    Abstract: In a wireless local area network, a first and second access point in which the RF coverage areas overlap are synchronized by positioning a monitor station within the overlap area. The monitor station receives beacon frames from both access points and records the arrival times. A manager in communication with both access points and the monitor station calculates a retardation interval and issues a control command to the second access point to retard transmission of its beacon frame. The retardation interval is calculated such that the contention-free period of the second access point does not overlap the contention-free period of the first access point. The manager may also issue control commands to the first and second access points to adjust their contention-free periods.
    Type: Application
    Filed: November 2, 2011
    Publication date: February 23, 2012
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Lusheng Ji, Robert Miller, Harry Worstell
  • Patent number: 8077614
    Abstract: In a wireless local area network, a first and second access point in which the RF coverage areas overlap are synchronized by positioning a monitor station within the overlap area. The monitor station receives beacon frames from both access points and records the arrival times. A manager in communication with both access points and the monitor station calculates a retardation interval and issues a control command to the second access point to retard transmission of its beacon frame. The retardation interval is calculated such that the contention-free period of the second access point does not overlap the contention-free period of the first access point. The manager may also issue control commands to the first and second access points to adjust their contention-free periods.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: December 13, 2011
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Lusheng Ji, Robert Miller, Harry Worstell
  • Patent number: 8067945
    Abstract: A material medium, such as an optical fiber or electrical cable, is commonly used to carry services, such as telecommunications or energy service. The current invention identifies the following problems which may be encountered when monitoring a material medium. They are: (1) requiring a time and labor intensive investigation to find a fault, (2) needing a significant change in a current material medium infrastructure to support a monitoring effort, or (3) reducing available bandwidth in a material medium due to a monitoring device intruding into the material medium to send data. These problems are solved, in accordance with a feature of the current invention, by monitoring a material medium with at least one diagnostic sensor, and using an electromagnetic (EM) signal, such as radio frequency (RF), signal to wirelessly transmit the sensor data. The diagnostic sensor may measure the operational health of the material medium, or may measure local environmental conditions around the material medium.
    Type: Grant
    Filed: January 2, 2008
    Date of Patent: November 29, 2011
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Constance Coty, Lusheng Ji, Robert Miller, Harry Worstell
  • Publication number: 20090167522
    Abstract: A material medium, such as an optical fiber or electrical cable, is commonly used to carry services, such as telecommunications or energy service. The current invention identifies the following problems which may be encountered when monitoring a material medium. They are: (1) requiring a time and labor intensive investigation to find a fault, (2) needing a significant change in a current material medium infrastructure to support a monitoring effort, or (3) reducing available bandwidth in a material medium due to a monitoring device intruding into the material medium to send data. These problems are solved, in accordance with a feature of the current invention, by monitoring a material medium with at least one diagnostic sensor, and using an electromagnetic (EM) signal, such as radio frequency (RF), signal to wirelessly transmit the sensor data. The diagnostic sensor may measure the operational health of the material medium, or may measure local environmental conditions around the material medium.
    Type: Application
    Filed: January 2, 2008
    Publication date: July 2, 2009
    Inventors: Constance Coty, Lusheng Ji, Robert Miller, Harry Worstell
  • Publication number: 20090147768
    Abstract: In a wireless local area network, a first and second access point in which the RF coverage areas overlap are synchronized by positioning a monitor station within the overlap area. The monitor station receives beacon frames from both access points and records the arrival times. A manager in communication with both access points and the monitor station calculates a retardation interval and issues a control command to the second access point to retard transmission of its beacon frame. The retardation interval is calculated such that the contention-free period of the second access point does not overlap the contention-free period of the first access point. The manager may also issue control commands to the first and second access points to adjust their contention-free periods.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 11, 2009
    Inventors: Lusheng Ji, Robert Miller, Harry Worstell
  • Publication number: 20080081557
    Abstract: A premises, connected to receive broadband service(s) and also connected to a cable system, is provided with a broadband interface which connects to in-premises cabling which is coupled to consumer receivers such as a television sets, PDAs, laptops. Connected to the broadband interface is an adjunct device which channels broadband, data and voice signals supplied to an in-premises wireless system as distinguished from the signals supplied to the cable connected consumer receivers. The adjunct device formats the broadband and voice signals or any broadband service into packet format suitable for signal radiation and couples them to the in-premises coax cabling, via a diplexer, at a first selected location. At a second cable location a second diplexer, connected to the cable, separates the broadband, data and voice signals and couples them to a signal radiation device (i.e., an RF antenna or leaky coaxial cable) which radiates the signal to the immediate surrounding location.
    Type: Application
    Filed: November 5, 2007
    Publication date: April 3, 2008
    Applicant: AT&T CORPORATION
    Inventors: John Murray, Christopher Rice, Harry Worstell