Patents by Inventor David Budgett
David Budgett 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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Publication number: 20220202336Abstract: In one embodiment the invention provides a process of capturing a biopotential signal at a surface of a body using a sensor receiver which forms a first signal connection the body wherein one or more parameters of impedance of the first signal connection are unknown. The process comprises receiving the biopotential signal at an output of a first signal channel having a first transfer function which is dependent on the one of more unknown first impedance parameters. The process also comprises receiving the biopotential signal at an output of a second signal channel having a second transfer function dependent on the one of more unknown first impedance parameters. The process also comprises deriving a set of relations for the biopotential signal.Type: ApplicationFiled: May 11, 2020Publication date: June 30, 2022Inventors: Andrew Lowe, David Budgett, Anubha Kalra, Gautam Anand, Raymond Simpkin
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Patent number: 10069341Abstract: An inductively powered sensor system includes a primary conductive path 100 capable of being energised to provide an electromagnetic field in a defined space 1. An inductive power pick-up 120 is associated with a sensor 124 and is capable of receiving power from the field to supply the sensor 124. The system includes a first sensing means to sense the power available to the pick-up 120 and control means to increase or decrease the power available to the sensor dependant on the sensed power available. A method of inductively powering a sensor, an inductively powered sensor and an animal enclosure including one or more primary conductive path of an inductive power supply are also disclosed.Type: GrantFiled: March 5, 2015Date of Patent: September 4, 2018Assignee: Auckland Uniservices LimitedInventors: Simon Charles Malpas, Aiguo Hu, David Budgett
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Patent number: 9998179Abstract: The present invention provides a power supply for an inductive power transfer (IPT) system, comprising a current-fed push-pull resonant converter comprising a parallel-tuned resonant tank and a pair of switches enabling selective shorting of the resonant tank; and a controller adapted to control a shorting period of the resonant converter by selectively operating the switches. Methods for controlling an IPT power supply are also disclosed. The power supply may be controlled to regulate the output of an IPT pick-up inductively coupled with the power supply in use, or to operate at a zero voltage switching (ZVS) frequency.Type: GrantFiled: March 11, 2013Date of Patent: June 12, 2018Assignee: AUCKLAND UNISERVICES LIMITEDInventors: David Budgett, Aiguo Hu, Bob Wang
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Publication number: 20180010974Abstract: A pressure sensor system with at least two absolute pressure sensors can have an external sensor with a pressure sensitive surface in contact with atmospheric pressure (proximal) and internal sensors each with a pressure sensitive surface in contact with one or more regions at an unknown pressure (distal). The unknown pressure is determined by a means to calculate the difference between the first sensor and the internal sensors.Type: ApplicationFiled: July 7, 2017Publication date: January 11, 2018Applicant: Millar Inc.Inventors: Kenneth M. Bueche, David Budgett, Rick Thornton, Gabriel P. Kern, Daniel McCormick
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Patent number: 9680338Abstract: An inductively powered sensor system includes a primary conductive path 100 capable of being energized to provide an electromagnetic field in a defined space 1. An inductive power pick-up 120 is associated with a sensor 124 and is capable of receiving power from the field to supply the sensor 124. The system includes a first sensing means to sense the power available to the pick-up 120 and control means to increase or decrease the power available to the sensor dependant on the sensed power available. A method of inductively powering a sensor, an inductively powered sensor and an animal enclosure including one or more primary conductive path of an inductive power supply are also disclosed.Type: GrantFiled: March 5, 2015Date of Patent: June 13, 2017Assignee: Auckland Uniservices LimitedInventors: Simon Charles Malpas, Aiguo Hu, David Budgett
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Publication number: 20150326029Abstract: An inductively powered sensor system includes a primary conductive path 100 capable of being energised to provide an electromagnetic field in a defined space 1. An inductive power pick-up 120 is associated with a sensor 124 and is capable of receiving power from the field to supply the sensor 124. The system includes a first sensing means to sense the power available to the pick-up 120 and control means to increase or decrease the power available to the sensor dependant on the sensed power available. A method of inductively powering a sensor, an inductively powered sensor and an animal enclosure including one or more primary conductive path of an inductive power supply are also disclosed.Type: ApplicationFiled: March 5, 2015Publication date: November 12, 2015Inventors: Simon Charles Malpas, Aiguo Hu, David Budgett
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Publication number: 20150326030Abstract: An inductively powered sensor system includes a primary conductive path 100 capable of being energised to provide an electromagnetic field in a defined space 1. An inductive power pick-up 120 is associated with a sensor 124 and is capable of receiving power from the field to supply the sensor 124. The system includes a first sensing means to sense the power available to the pick-up 120 and control means to increase or decrease the power available to the sensor dependant on the sensed power available. A method of inductively powering a sensor, an inductively powered sensor and an animal enclosure including one or more primary conductive path of an inductive power supply are also disclosed.Type: ApplicationFiled: March 5, 2015Publication date: November 12, 2015Inventors: Simon Charles Malpas, Aiguo Hu, David Budgett
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Patent number: 9125242Abstract: An inductive power transfer system includes a number of controllable reactive components (3, 6, 12, 13, 16) that allow the resonant frequency of a primary and/or secondary resonant circuit to be controllably varied to thereby control power available to a load (10).Type: GrantFiled: January 20, 2009Date of Patent: September 1, 2015Assignee: Millar Instruments LimitedInventor: David Budgett
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Patent number: 9065284Abstract: The present invention provides an inductively powered sensor system having a primary conductive path capable of being energized to provide an electromagnetic field in a defined space. An inductive power pick-up is associated with a sensor and is capable of receiving power from the field to supply the sensor. The system includes a first sensing unit to sense the power available to the pick-up and a control unit to increase or decrease the power available to the sensor dependant on the sensed power available. A method of inductively powering a sensor, an inductively powered sensor and an animal enclosure including one or more primary conductive path of an inductive power supply are also disclosed.Type: GrantFiled: September 16, 2005Date of Patent: June 23, 2015Assignee: Auckland Uniservices LimitedInventors: Simon Charles Malpas, Aiguo Hu, David Budgett
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Publication number: 20130234531Abstract: The present invention provides a power supply for an inductive power transfer (IPT) system, comprising a current-fed push-pull resonant converter comprising a parallel-tuned resonant tank and a pair of switches enabling selective shorting of the resonant tank; and a controller adapted to control a shorting period of the resonant converter by selectively operating the switches. Methods for controlling an IPT power supply are also disclosed. The power supply may be controlled to regulate the output of an IPT pick-up inductively coupled with the power supply in use, or to operate at a zero voltage switching (ZVS) frequency.Type: ApplicationFiled: March 11, 2013Publication date: September 12, 2013Applicant: AUCKLAND UNISERVICES LIMITEDInventors: David BUDGETT, Aiguo HU, Bob WANG
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Publication number: 20110101790Abstract: An inductive power transfer system includes a number of controllable reactive components (3, 6, 12, 13, 16) that allow the resonant frequency of a primary and/or secondary resonant circuit to be controllably varied to thereby control power available to a load (10).Type: ApplicationFiled: January 20, 2009Publication date: May 5, 2011Applicant: Telemetry Research LimitedInventor: David Budgett
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Publication number: 20070296393Abstract: The present invention provides an inductively powered sensor system having a primary conductive path capable of being energized to provide an electromagnetic field in a defined space. An inductive power pick-up is associated with a sensor and is capable of receiving power from the field to supply the sensor. The system includes a first sensing unit to sense the power available to the pick-up and a control unit to increase or decrease the power available to the sensor dependant on the sensed power available. A method of inductively powering a sensor, an inductively powered sensor and an animal enclosure including one or more primary conductive path of an inductive power supply are also disclosed.Type: ApplicationFiled: September 16, 2005Publication date: December 27, 2007Applicant: AUCKLAND UNISERVICES LIMITEDInventors: Simon Malpas, Aiguo Hu, David Budgett