Patents by Inventor Harlan Ohara
Harlan Ohara 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: 10616966Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: GrantFiled: February 27, 2019Date of Patent: April 7, 2020Assignee: Chemtron Research LLCInventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Publication number: 20190200423Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: ApplicationFiled: February 27, 2019Publication date: June 27, 2019Inventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Patent number: 10231301Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: GrantFiled: November 13, 2017Date of Patent: March 12, 2019Assignee: Chemtron Research LLCInventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Publication number: 20180110099Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: ApplicationFiled: November 13, 2017Publication date: April 19, 2018Inventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Patent number: 9820349Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: GrantFiled: August 3, 2016Date of Patent: November 14, 2017Assignee: Chemtron Research LLCInventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Publication number: 20170034879Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: ApplicationFiled: August 3, 2016Publication date: February 2, 2017Inventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Patent number: 9426856Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: GrantFiled: May 20, 2015Date of Patent: August 23, 2016Assignee: Chemtron Research LLCInventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Publication number: 20150257226Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: ApplicationFiled: May 20, 2015Publication date: September 10, 2015Inventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Patent number: 9060401Abstract: Apparatus and method are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs couplable to form a plurality of segments of LEDs; a current sensor; and a controller to monitor a current level through an overall series LED current path, and to provide for first or second segments of LEDs to be in or out of the overall series LED current path at different current levels. The controller is configured to, in a first light emitting diode configuration, cause first and second segments of LEDs to be parallel to one another and in the overall series LED current path. The controller is further configured to, in a second light emitting diode configuration, cause first and second segments of light emitting diodes to be coupled in series and in the overall series light emitting diode current path.Type: GrantFiled: January 24, 2014Date of Patent: June 16, 2015Assignee: Point Somee Limited Liability CompanyInventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Patent number: 9055641Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: GrantFiled: October 28, 2013Date of Patent: June 9, 2015Assignee: Point Somee Limited Liability CompanyInventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Publication number: 20140139112Abstract: Apparatus and method are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs couplable to form a plurality of segments of LEDs; a current sensor; and a controller to monitor a current level through an overall series LED current path, and to provide for first or second segments of LEDs to be in or out of the overall series LED current path at different current levels. The controller is configured to, in a first light emitting diode configuration, cause first and second segments of LEDs to be parallel to one another and in the overall series LED current path. The controller is further configured to, in a second light emitting diode configuration, cause first and second segments of light emitting diodes to be coupled in series and in the overall series light emitting diode current path.Type: ApplicationFiled: January 24, 2014Publication date: May 22, 2014Applicant: Point Somee Limited Liability CompanyInventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Publication number: 20140125230Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: ApplicationFiled: October 28, 2013Publication date: May 8, 2014Applicant: Point Somee Limited Liability CompanyInventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Patent number: 8569956Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: GrantFiled: October 27, 2011Date of Patent: October 29, 2013Assignee: Point Somee Limited Liability CompanyInventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Publication number: 20120081009Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). An exemplary apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In an exemplary embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: ApplicationFiled: October 27, 2011Publication date: April 5, 2012Applicant: EXCLARA INC.Inventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca