Patents by Inventor Andrew Jeffries
Andrew Jeffries 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: 9261577Abstract: A method of estimating user location involving collecting data from the access points in the network. The data can then be used to define a relationship, for example the loss of power experienced by a transmitted signal, between the access points. The relationship can be stored within a matrix, database or any other suitable storage method that can be referenced to determine the position of a user device within the network and correlated with corresponding measurements from a user device to determine the location of the user device within the network.Type: GrantFiled: July 1, 2012Date of Patent: February 16, 2016Assignee: Apple Inc.Inventors: Steven Raymond Hall, Andrew Jeffries, David Bevan, Steven Baines
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Patent number: 8594676Abstract: In a cellular wireless system, power thresholds used for determining whether to add or drop servers held in a set of servers, such as an active set, for serving a user equipment (UE) are determined based on the motion of the respective UE. A lower threshold may be used with respect to the adding or dropping of a given server to or from a set of servers for serving a fast moving UE than would be used for the same server with respect to adding or dropping to or from a set of servers for serving a slow moving UE, while maintaining a given quality of service. As a result, the average number of servers held in sets is reduced in a typical network that comprises a plurality of UEs moving at different speeds, compared to a situation in which the threshold is set irrespective of the motion of a UE.Type: GrantFiled: May 1, 2012Date of Patent: November 26, 2013Assignee: BlackBerry LimitedInventors: Steven Hall, Steven Baines, David Bevan, Andrew Jeffries
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Patent number: 8594677Abstract: In a cellular wireless system, power thresholds used for determining whether to add or drop servers held in a set of servers, such as an active set, for serving a user equipment (UE) are determined based on the motion of the respective UE. A lower threshold may be used with respect to the adding or dropping of a given server to or from a set of servers for serving a fast moving UE than would be used for the same server with respect to adding or dropping to or from a set of servers for serving a slow moving UE, while maintaining a given quality of service. As a result, the average number of servers held in sets is reduced in a typical network that comprises a plurality of UEs moving at different speeds, compared to a situation in which the threshold is set irrespective of the motion of a UE.Type: GrantFiled: September 14, 2012Date of Patent: November 26, 2013Assignee: BlackBerry LimitedInventors: Steven Hall, Steven Baines, David Bevan, Andrew Jeffries
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Patent number: 8537774Abstract: Embodiments of the invention relate to cellular wireless networks and are particularly suited to networks including different types of base stations. So-called femtocell base stations are typically deployed within a subscriber's premises and operate at low transmit power, providing a very limited area of wireless coverage. A femtocell is typically deployed within the area of wireless coverage of a conventional macrocell type of base station, and if handover from a macrocell is performed on the basis of the best signal to noise plus interference ratio, a connection is likely to be transferred to another macrocell rather than to a femtocell. However, in view of the low density of user equipments capable of transceiving with a femtocell, the femtocell could potentially provide a greater data rate to the user equipment terminal than is possible with a macrocell.Type: GrantFiled: December 28, 2007Date of Patent: September 17, 2013Assignee: Apple Inc.Inventors: Julius Robson, Mathieu Boue-Lahorgue, Simon Avis, David Bevan, Steven Hall, Andrew Jeffries
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Publication number: 20130012209Abstract: In a cellular wireless system, power thresholds used for determining whether to add or drop servers held in a set of servers, such as an active set, for serving a user equipment SUE) are determined based on the motion of the respective UE user. A lower threshold may be used with respect to the adding or dropping of a given server to or from a set of servers for serving a fast moving UE than would be used for the same server with respect to its adding or dropping to or from a set of servers for serving a slow moving UE, while maintaining a given quality of service. As a result, the average number of servers held in sets is reduced in a typical network that comprises a plurality of UEs moving at different speeds, compared to a situation in which the threshold is set irrespective of the motion of a UE.Type: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Inventors: STEVEN HALL, STEVEN BAINES, DAVID BEVAN, ANDREW JEFFRIES
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Publication number: 20120329477Abstract: A method of estimating user location involving collecting data from the access points in the network. The data can then be used to define a relationship, for example the loss of power experienced by a transmitted signal, between the access points. The relationship can be stored within a matrix, database or any other suitable storage method that can be referenced to determine the position of a user device within the network and correlated with corresponding measurements from a user device to determine the location of the user device within the network.Type: ApplicationFiled: July 1, 2012Publication date: December 27, 2012Inventors: Steven Raymond Hall, Andrew Jeffries, David Bevan, Steven Baines
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Publication number: 20120276902Abstract: In a cellular wireless system, power thresholds used for determining whether to add or drop servers held in a set of servers, such as an active set, for serving a user equipment (UE) are determined based on the motion of the respective UE. A lower threshold may be used with respect to the adding or dropping of a given server to or from a set of servers for serving a fast moving UE than would be used for the same server with respect to adding or dropping to or from a set of servers for serving a slow moving UE, while maintaining a given quality of service. As a result, the average number of servers held in sets is reduced in a typical network that comprises a plurality of UEs moving at different speeds, compared to a situation in which the threshold is set irrespective of the motion of a UE.Type: ApplicationFiled: May 1, 2012Publication date: November 1, 2012Inventors: Steven Hall, Steven Baines, David Bevan, Andrew Jeffries
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Patent number: 8243626Abstract: A method of estimating user location involving collecting data from the access points in the network. The data can then be used to define a relationship, for example the loss of power experienced by a transmitted signal, between the access points. The relationship can be stored within a matrix, database or any other suitable storage method that can be referenced to determine the position of a user device within the network and correlated with corresponding measurements from a user device to determine the location of the user device within the network.Type: GrantFiled: September 23, 2009Date of Patent: August 14, 2012Assignee: Apple Inc.Inventors: Steven Raymond Hall, Andrew Jeffries, David Bevan, Steven Baines
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Patent number: 8208926Abstract: In a cellular wireless system, power thresholds used for determining whether or not to add or drop servers held in a set of servers, such as an active set, for serving a user equipment are determined on the basis of the motion of the respective user equipment. A lower threshold may be used with respect to the adding or dropping of a given server to or from a set of servers for serving a fast moving user equipment than would be used for the same server with respect to its adding or dropping to or from a set of servers for serving a slow moving user equipment, while maintaining a given quality of service. As a result, the average number of servers held in sets is reduced in a typical network that comprises a plurality of user equipments moving at different speeds, compared to a situation in which the threshold is set irrespective of the motion of a user equipment.Type: GrantFiled: May 25, 2011Date of Patent: June 26, 2012Assignee: Research In Motion LimitedInventors: Steven Hall, Steven Baines, David Bevan, Andrew Jeffries
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Patent number: 8125917Abstract: In a wireless network comprising access points deployed within a designated zone of coverage, the radio frequency field strength resulting from radiation from the access points is optimised as a function of location by means of control of the transmission power and/or radiation pattern of the access points in response to measurements from sensors at defined locations that measure received signal power, the received power being related to radio frequency field strength. Sensors may be deployed within the designated zone of coverage, at the edge of the zone and/or outside the zone and optimization of the transmission parameters of the access points in terms of transmission power and/or radiation pattern is carried out taking into account the location of the sensors in addition to the received power at the sensors.Type: GrantFiled: October 10, 2008Date of Patent: February 28, 2012Assignee: Avaya Inc.Inventors: David Bevan, Simon Gale, Steven Hall, Andrew Jeffries
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Publication number: 20110223906Abstract: In a cellular wireless system, power thresholds used for determining whether or not to add or drop servers held in a set of servers, such as an active set, for serving a user equipment are determined on the basis of the motion of the respective user equipment. A lower threshold may be used with respect to the adding or dropping of a given server to or from a set of servers for serving a fast moving user equipment than would be used for the same server with respect to its adding or dropping to or from a set of servers for serving a slow moving user equipment, while maintaining a given quality of service. As a result, the average number of servers held in sets is reduced in a typical network that comprises a plurality of user equipments moving at different speeds, compared to a situation in which the threshold is set irrespective of the motion of a user equipment.Type: ApplicationFiled: May 25, 2011Publication date: September 15, 2011Applicant: NORTEL NETWORKS LIMITEDInventors: Steven Hall, Steven Baines, David Bevan, Andrew Jeffries
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Patent number: 7953413Abstract: In a cellular wireless system, power thresholds used for determining whether or not to add or drop servers held in a set of servers, such as an active set, for serving a user equipment are determined on the basis of the motion of the respective user equipment. A lower threshold may be used with respect to the adding or dropping of a given server to or from a set of servers for serving a fast moving user equipment than would be used for the same server with respect to its adding or dropping to or from a set of servers for serving a slow moving user equipment, while maintaining a given quality of service. As a result, the average number of servers held in sets is reduced in a typical network that comprises a plurality of user equipments moving at different speeds, compared to a situation in which the threshold is set irrespective of the motion of a user equipment.Type: GrantFiled: September 25, 2008Date of Patent: May 31, 2011Assignee: Nortel Networks LimitedInventors: Steven Hall, Steven Baines, David Bevan, Andrew Jeffries
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Publication number: 20110069641Abstract: A method of estimating user location involving collecting data from the access points in the network. The data can then be used to define a relationship, for example the loss of power experienced by a transmitted signal, between the access points. The relationship can be stored within a matrix, database or any other suitable storage method that can be referenced to determine the position of a user device within the network and correlated with corresponding measurements from a user device to determine the location of the user device within the network.Type: ApplicationFiled: September 23, 2009Publication date: March 24, 2011Applicant: Nortel Networks LimitedInventors: Steven Raymond Hall, Andrew Jeffries, David Bevan, Steven Baines
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Publication number: 20100091745Abstract: In a wireless network comprising access points deployed within a designated zone of coverage, the radio frequency field strength resulting from radiation from the access points is optimised as a function of location by means of control of the transmission power and/or radiation pattern of the access points in response to measurements from sensors at defined locations that measure received signal power, the received power being related to radio frequency field strength. Sensors may be deployed within the designated zone of coverage, at the edge of the zone and/or outside the zone and optimisation of the transmission parameters of the access points in terms of transmission power and/or radiation pattern is carried out taking into account the location of the sensors in addition to the received power at the sensors.Type: ApplicationFiled: October 10, 2008Publication date: April 15, 2010Applicant: Nortel Networks, LimitedInventors: David Bevan, Andrew Jeffries, Simon Gale, Steven Hall
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Publication number: 20090163212Abstract: In a cellular wireless system, power thresholds used for determining whether or not to add or drop servers held in a set of servers, such as an active set, for serving a user equipment are determined on the basis of the motion of the respective user equipment. A lower threshold may be used with respect to the adding or dropping of a given server to or from a set of servers for serving a fast moving user equipment than would be used for the same server with respect to its adding or dropping to or from a set of servers for serving a slow moving user equipment, while maintaining a given quality of service. As a result, the average number of servers held in sets is reduced in a typical network that comprises a plurality of user equipments moving at different speeds, compared to a situation in which the threshold is set irrespective of the motion of a user equipment.Type: ApplicationFiled: September 25, 2008Publication date: June 25, 2009Applicant: NORTEL NETWORKS LIMITEDInventors: Steven Hall, Steven Baines, David Bevan, Andrew Jeffries
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Publication number: 20090046665Abstract: Embodiments of the invention relate to cellular wireless networks and are particularly suited to networks including different types of base stations. So-called femtocell base stations are typically deployed within a subscriber's premises and operate at low transmit power, providing a very limited area of wireless coverage. A femtocell is typically deployed within the area of wireless coverage of a conventional macrocell type of base station, and if handover from a macrocell is performed on the basis of the best signal to noise plus interference ratio, a connection is likely to be transferred to another macrocell rather than to a femtocell. However, in view of the low density of user equipments capable of transceiving with a femtocell, the femtocell could potentially provide a greater data rate to the user equipment terminal than is possible with a macrocell.Type: ApplicationFiled: December 28, 2007Publication date: February 19, 2009Inventors: Julius Robson, Mathieu Boue-Lahorgue, Simon Axis, Donald Steven, Steven Harl, Andrew Jeffries
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Patent number: 5490633Abstract: Relatively low resistivity liquids are formed into sprays under the influence of an applied electric field acting between a nozzle and the nozzle surroundings which may be at earth potential. The liquid issues from the nozzle as a ligament which undergoes necking to a diameter smaller than that of the nozzle orifice, thereby producing droplets with a volume median diameter less than the orifice diameter.Type: GrantFiled: September 9, 1993Date of Patent: February 13, 1996Assignee: Imperial Chemical Industries PLCInventors: Andrew Jeffries, Michael L. Green, Timothy J. Noakes
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Patent number: 5292067Abstract: Relatively low resistivity liquids are formed into sprays under the influence of an applied electric field acting between a nozzle and the nozzle surroundings which may be at earth potential. The liquid issues from the nozzle as a ligament which undergoes necking to a diameter smaller than that of the nozzle orifice, thereby producing droplets with a volume median diameter less than the orifice diameter.Type: GrantFiled: March 2, 1992Date of Patent: March 8, 1994Assignee: Imperial Chemical Industries PLCInventors: Andrew Jeffries, Michael L. Green, Timothy J. Noakes
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Patent number: 5221050Abstract: Liquid to be dispensed is supplied to a dispensing nozzle (88) from a compressible container (30) such as a sachet with a valve-controlled outlet (66) by compressing the sachet through the agency of a pad (46) of resiliently deformable material. The dispensing device is embodied in a hand held unit having a trigger (102) and electrical circuitry (91, 96, 106, 98, 106) for applying high voltage to the liquid in order to effect dispensing of the liquid in the form of an electrostatically charged, atomised spray.Type: GrantFiled: October 24, 1991Date of Patent: June 22, 1993Assignee: Imperial Chemical Industries PLCInventors: Andrew Jeffries, Michael L. Green, Timothy J. Noakes