Patents by Inventor Cristian Sebastian NICULESCU
Cristian Sebastian NICULESCU 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: 11187423Abstract: A control device, such as a smart thermostat, employs solid state relays as switches to activate and deactivate systems controlled by the device. By measuring the current flow through the power buses to one or more of the solid state relays of the control device, potentially damaging over current conditions can be distinguished from permissible transient over-current conditions and the control device can deactivate any solid state relays which would be damaged while allowing solid state relays which are experiencing allowable transients to remain operating. In the case of a severe over current condition, a current monitoring device can issue a fault signal, triggering an interrupt condition which will cause a processor in the controller to shut down the affected solid state relays very quickly.Type: GrantFiled: July 22, 2019Date of Patent: November 30, 2021Assignee: ECOBEE INC.Inventors: Cristian Sebastian Niculescu, John Theodore Metselaar
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Patent number: 10637833Abstract: A method of protecting data is disclosed herein. The method comprises: encrypting a data in a protected data item using a first encryption key; and encrypting the first encryption key in the protected data item using a second encryption key that is unique to the protected data item, wherein the unique second encryption key is derived from a third encryption key in the protected data item and to a plurality of protected data items comprising a common characteristic shared with the protected data item.Type: GrantFiled: September 30, 2014Date of Patent: April 28, 2020Assignee: CRYPTOMILL INC.Inventors: Chen Li Tien, Joseph Mari Villamor Ocol, Deepu Filji, Cristian Sebastian Niculescu, Ivan Canute Serrao, Christian George Batty, Nandini Jolly
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Patent number: 10488063Abstract: A control device, such as a smart thermostat, employs solid state relays as switches to activate and deactivate systems controlled by the device. Current flows through at least some of the solid state relays are monitored to determine the bulk heating produced in the solid state relays, and their associated circuitry and printed circuit board traces, and this determined amount of bulk heat is added to other determined amounts of bulk heat and is used to compensate the reading provided by temperature sensors within the control device which have been affected by the bulk heat. Further, by measuring the current flow through the power buses to one or more of the solid state relays of the control device, potentially damaging over current conditions can be distinguished from permissible transient over-current conditions and the control device can deactivate any solid state relays which would be damaged while allowing solid state relays which are experiencing allowable transients to remain operating.Type: GrantFiled: January 24, 2018Date of Patent: November 26, 2019Assignee: ECOBEE INC.Inventors: Cristian Sebastian Niculescu, John Theodore Metselaar
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Publication number: 20190338970Abstract: A control device, such as a smart thermostat, employs solid state relays as switches to activate and deactivate systems controlled by the device. By measuring the current flow through the power buses to one or more of the solid state relays of the control device, potentially damaging over current conditions can be distinguished from permissible transient over-current conditions and the control device can deactivate any solid state relays which would be damaged while allowing solid state relays which are experiencing allowable transients to remain operating. In the case of a severe over current condition, a current monitoring device can issue a fault signal, triggering an interrupt condition which will cause a processor in the controller to shut down the affected solid state relays very quickly.Type: ApplicationFiled: July 22, 2019Publication date: November 7, 2019Inventors: Cristian Sebastian NICULESCU, John Theodore METSELAAR
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Patent number: 10215432Abstract: A control device, such as a smart thermostat, employs solid state relays as switches to activate and deactivate systems controlled by the device. Current flows through at least some of the solid state relays are monitored to determine the bulk heating produced in the solid state relays, and their associated circuitry and printed circuit board traces, and this determined amount of bulk heat is added to other determined amounts of bulk heat and is used to compensate the reading provided by temperature sensors within the control device which have been affected by the bulk heat. Further, by measuring the current flow through the power buses to one or more of the solid state relays of the control device, potentially damaging over current conditions can be distinguished from permissible transient over-current conditions and the control device can deactivate any solid state relays which would be damaged while allowing solid state relays which are experiencing allowable transients to remain operating.Type: GrantFiled: October 13, 2016Date of Patent: February 26, 2019Assignee: ECOBEE INC.Inventors: Cristian Sebastian Niculescu, John Theodore Metselaar
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Publication number: 20180149381Abstract: A control device, such as a smart thermostat, employs solid state relays as switches to activate and deactivate systems controlled by the device. Current flows through at least some of the solid state relays are monitored to determine the bulk heating produced in the solid state relays, and their associated circuitry and printed circuit board traces, and this determined amount of bulk heat is added to other determined amounts of bulk heat and is used to compensate the reading provided by temperature sensors within the control device which have been affected by the bulk heat. Further, by measuring the current flow through the power buses to one or more of the solid state relays of the control device, potentially damaging over current conditions can be distinguished from permissible transient over-current conditions and the control device can deactivate any solid state relays which would be damaged while allowing solid state relays which are experiencing allowable transients to remain operating.Type: ApplicationFiled: January 24, 2018Publication date: May 31, 2018Inventors: Cristian Sebastian NICULESCU, John Theodore METSELAAR
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Publication number: 20180106489Abstract: A control device, such as a smart thermostat, employs solid state relays as switches to activate and deactivate systems controlled by the device. Current flows through at least some of the solid state relays are monitored to determine the bulk heating produced in the solid state relays, and their associated circuitry and printed circuit board traces, and this determined amount of bulk heat is added to other determined amounts of bulk heat and is used to compensate the reading provided by temperature sensors within the control device which have been affected by the bulk heat. Further, by measuring the current flow through the power buses to one or more of the solid state relays of the control device, potentially damaging over current conditions can be distinguished from permissible transient over-current conditions and the control device can deactivate any solid state relays which would be damaged while allowing solid state relays which are experiencing allowable transients to remain operating.Type: ApplicationFiled: October 13, 2016Publication date: April 19, 2018Inventors: Cristian Sebastian Niculescu, John Theodore Metselaar
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Publication number: 20160241522Abstract: A method of protecting data is disclosed herein. The method comprises: encrypting a data in a protected data item using a first encryption key; and encrypting the first encryption key in the protected data item using a second encryption key that is unique to the protected data item, wherein the unique second encryption key is derived from a third encryption key in the protected data item and to a plurality of protected data items comprising a common characteristic shared with the protected data item.Type: ApplicationFiled: September 30, 2014Publication date: August 18, 2016Applicant: CRYPTOMILL INC.Inventors: Chen Li TIEN, Joseph Mari Villamor OCOL, Deepu FILJI, Cristian Sebastian NICULESCU, Ivan Canute SERRAO, Christian George BATTY, Nandini JOLLY