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).
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Patent number: 10143008Abstract: 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: GrantFiled: December 4, 2015Date of Patent: November 27, 2018Assignee: AT&T INTELLECTUAL PROPERTY II, L.P.Inventors: Lusheng Ji, Robert Miller, Harry Worstell
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Patent number: 9506784Abstract: 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: GrantFiled: October 19, 2011Date of Patent: November 29, 2016Assignee: AT&T Intellectual Property I, L.P.Inventors: Constance Coty, Lusheng Ji, Robert Miller, Harry Worstell
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Publication number: 20160088656Abstract: 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: ApplicationFiled: December 4, 2015Publication date: March 24, 2016Inventors: Lusheng Ji, Robert Miller, Harry Worstell
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Patent number: 9247568Abstract: 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: GrantFiled: May 24, 2013Date of Patent: January 26, 2016Assignee: AT&T INTELLECTUAL PROPERTY II, L.P.Inventors: Lusheng Ji, Robert Miller, Harry Worstell
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Patent number: 8923343Abstract: 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: GrantFiled: July 8, 2013Date of Patent: December 30, 2014Assignee: AT&T Intellectual Property I, L.P.Inventors: Lusheng Ji, Robert Miller, Harry Worstell
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Publication number: 20130294438Abstract: 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: ApplicationFiled: July 8, 2013Publication date: November 7, 2013Inventors: Lusheng Ji, Robert Miller, Harry Worstell
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Publication number: 20130259018Abstract: 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: ApplicationFiled: May 24, 2013Publication date: October 3, 2013Inventors: Lusheng Ji, Robert Miller, Harry Worstell
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Patent number: 8503486Abstract: 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: GrantFiled: November 2, 2011Date of Patent: August 6, 2013Assignee: AT&T Intellectual Property I, L.P.Inventors: Lusheng Ji, Robert Miller, Harry Worstell
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Patent number: 8472463Abstract: 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: GrantFiled: May 22, 2007Date of Patent: June 25, 2013Assignee: AT&T Intellectual Property I, L.P.Inventors: Lusheng Ji, Robert Miller, Harry Worstell
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Publication number: 20120089367Abstract: 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: ApplicationFiled: October 19, 2011Publication date: April 12, 2012Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: Constance Coty, Lusheng Ji, Robert Miller, Harry Worstell
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Publication number: 20120044924Abstract: 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: ApplicationFiled: November 2, 2011Publication date: February 23, 2012Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: Lusheng Ji, Robert Miller, Harry Worstell
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Patent number: 8077614Abstract: 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: GrantFiled: December 5, 2007Date of Patent: December 13, 2011Assignee: AT&T Intellectual Property I, L.P.Inventors: Lusheng Ji, Robert Miller, Harry Worstell
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Patent number: 8067945Abstract: 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: GrantFiled: January 2, 2008Date of Patent: November 29, 2011Assignee: AT&T Intellectual Property I, L.P.Inventors: Constance Coty, Lusheng Ji, Robert Miller, Harry Worstell
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Publication number: 20090167522Abstract: 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: ApplicationFiled: January 2, 2008Publication date: July 2, 2009Inventors: Constance Coty, Lusheng Ji, Robert Miller, Harry Worstell
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Publication number: 20090147768Abstract: 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: ApplicationFiled: December 5, 2007Publication date: June 11, 2009Inventors: Lusheng Ji, Robert Miller, Harry Worstell
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Publication number: 20080081557Abstract: 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: ApplicationFiled: November 5, 2007Publication date: April 3, 2008Applicant: AT&T CORPORATIONInventors: John Murray, Christopher Rice, Harry Worstell