Patents by Inventor Dongsheng Zhou
Dongsheng Zhou 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).
-
Patent number: 8410717Abstract: 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 first plurality of segments of LEDs; a plurality of switches coupled to the plurality of segments of LEDs to switch a selected segment into or out of a series LED current path in response to a control signal; a current sensor; and a controller which, in response to a first parameter and during a first part of an AC voltage interval, generates a first control signal to switch a corresponding segment of LEDs into the series LED current path; and during a second part of the AC voltage interval, generates a second control signal to switch the corresponding segment of LEDs out of the first series LED current path.Type: GrantFiled: March 22, 2010Date of Patent: April 2, 2013Assignee: Point Somee Limited Liability CompanyInventors: Anatoly Shteynberg, Dongsheng Zhou, Harry Rodriguez, Mark Eason, Bradley M. Lehman, Stephen F. Dreyer, Thomas J. Riordan
-
Patent number: 8368636Abstract: Representative embodiments of the invention provide a system, apparatus, and method of controlling an intensity and spectrum of light emitted from a solid state lighting system. The solid state lighting system has a first emitted spectrum at a full intensity level and at a selected temperature, with a first electrical biasing for the solid state lighting system producing a first wavelength shift, and a second electrical biasing for the solid state lighting system producing a second, opposing wavelength shift. Representative embodiments provide for receiving information designating a selected intensity level or a selected temperature; and providing a combined first electrical biasing and second electrical biasing to the solid state lighting system to generate emitted light having the selected intensity level and having a second emitted spectrum within a predetermined variance of the first emitted spectrum over a predetermined range of temperatures.Type: GrantFiled: October 29, 2007Date of Patent: February 5, 2013Assignee: Point Somee Limited Liability CompanyInventors: Anatoly Shteynberg, Harry Rodriguez, Bradley M. Lehman, Dongsheng Zhou
-
Publication number: 20120319585Abstract: Representative embodiments of the disclosure provide a system, apparatus, and method of controlling an intensity and spectrum of light emitted from a solid state lighting system. The solid state lighting system has a first emitted spectrum at full intensity and at a selected temperature, with a first electrical biasing for the solid state lighting system producing a first wavelength shift, and a second electrical biasing for the solid state lighting system producing a second, opposing wavelength shift. Representative embodiments provide for receiving information designating a selected intensity level or a selected temperature and providing a combined first electrical biasing and second electrical biasing to the solid state lighting system to generate emitted light having the selected intensity level and having a second emitted spectrum within a predetermined variance of the first emitted spectrum over a predetermined range of temperatures.Type: ApplicationFiled: August 31, 2012Publication date: December 20, 2012Applicant: POINT SOMEE LIMITED LIABILITY COMPANYInventors: Anatoly Shteynberg, Harry Rodriguez, Bradley M. Lehman, Dongsheng Zhou
-
Patent number: 8324840Abstract: 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 first plurality of segments of LEDs coupled in series; a plurality of switches coupled to the plurality of segments of LEDs to switch a selected segment into or out of a series LED current path in response to a control signal; a memory; and a controller which, in response to a first parameter and during a first part of an AC voltage interval, determines and stores in the memory a value of a second parameter and generates a first control signal to switch a corresponding segment of LEDs into the series LED current path, and during a second part of the AC voltage interval, when a current value of the second parameter is substantially equal to the stored value, generates a second control signal to switch a corresponding segment of LEDs out of the first series LED current path.Type: GrantFiled: June 4, 2009Date of Patent: December 4, 2012Assignee: Point Somee Limited Liability CompanyInventors: Anatoly Shteynberg, Dongsheng Zhou, Harry Rodriguez, Mark Eason, Bradley M. Lehman, Stephen F. Dreyer, Thomas J. Riordan
-
Publication number: 20120286666Abstract: Representative embodiments of the disclosure provide a system, apparatus, and method of controlling an intensity and spectrum of light emitted from a solid state lighting system. The solid state lighting system has a first emitted spectrum at full intensity and at a selected temperature, with a first electrical biasing for the solid state lighting system producing a first wavelength shift, and a second electrical biasing for the solid state lighting system producing a second, opposing wavelength shift. Representative embodiments provide for receiving information designating a selected intensity level or a selected temperature and providing a combined first electrical biasing and second electrical biasing to the solid state lighting system to generate emitted light having the selected intensity level and having a second emitted spectrum within a predetermined variance of the first emitted spectrum over a predetermined range of temperatures.Type: ApplicationFiled: July 25, 2012Publication date: November 15, 2012Applicant: POINT SOMEE LIMITED LIABILITY COMPANYInventors: Anatoly Shteynberg, Harry Rodriguez, Bradley M. Lehman, Dongsheng Zhou
-
Patent number: 8264448Abstract: Representative embodiments of the disclosure provide a system, apparatus, and method of controlling an intensity and spectrum of light emitted from a solid state lighting system. The solid state lighting system has a first emitted spectrum at full intensity and at a selected temperature, with a first electrical biasing for the solid state lighting system producing a first wavelength shift, and a second electrical biasing for the solid state lighting system producing a second, opposing wavelength shift. Representative embodiments provide for receiving information designating a selected intensity level or a selected temperature and providing a combined first electrical biasing and second electrical biasing to the solid state lighting system to generate emitted light having the selected intensity level and having a second emitted spectrum within a predetermined variance of the first emitted spectrum over a predetermined range of temperatures.Type: GrantFiled: October 29, 2007Date of Patent: September 11, 2012Assignee: Point Somee Limited Liability CompanyInventors: Anatoly Shteynberg, Harry Rodriguez, Bradley M. Lehman, Dongsheng Zhou
-
Patent number: 8253666Abstract: Representative embodiments of the disclosure provide a system, apparatus, and method of controlling an intensity and spectrum of light emitted from a solid state lighting system. The solid state lighting system has a first emitted spectrum at full intensity and at a selected temperature, with a first electrical biasing for the solid state lighting system producing a first wavelength shift, and a second electrical biasing for the solid state lighting system producing a second, opposing wavelength shift. Representative embodiments provide for receiving information designating a selected intensity level or a selected temperature and providing a combined first electrical biasing and second electrical biasing to the solid state lighting system to generate emitted light having the selected intensity level and having a second emitted spectrum within a predetermined variance of the first emitted spectrum over a predetermined range of temperatures.Type: GrantFiled: October 29, 2007Date of Patent: August 28, 2012Assignee: Point Somee Limited Liability CompanyInventors: Anatoly Shteynberg, Harry Rodriguez, Bradley M. Lehman, Dongsheng Zhou
-
Patent number: 8253349Abstract: Exemplary embodiments of the invention provide a system, apparatus, and method of controlling an intensity and spectrum of light emitted from a solid state lighting system. The solid state lighting has a first emitted spectrum at full intensity and at a selected temperature, with a first electrical biasing for the solid state lighting producing a first wavelength shift, and a second electrical biasing for the solid state lighting producing a second, opposing wavelength shift. Exemplary embodiments provide for receiving information designating a selected intensity level or a selected temperature; and providing a combined first electrical biasing and second electrical biasing to the solid state lighting to generate emitted light having the selected intensity level and having a second emitted spectrum within a predetermined variance of the first emitted spectrum over a predetermined range of temperatures.Type: GrantFiled: August 18, 2010Date of Patent: August 28, 2012Assignee: Point Somee Limited Liability CompanyInventors: Anatoly Shteynberg, Harry Rodriguez, Bradley M. Lehman, Dongsheng Zhou
-
Patent number: 8193795Abstract: A power converter circuit senses the output voltage (Vo) and controls the converter's duty cycle (d1) to provide a steady output current (Io) or input power (Pin) in each switching cycle (T). During an initial period (Tramp), the controller provides a possibly smaller target current (Iramp) to reduce the system stress while the output voltage rises to a suitable value (InitVtar).Type: GrantFiled: October 17, 2005Date of Patent: June 5, 2012Assignee: Exar, Inc.Inventors: Dongsheng Zhou, Kent Kernahan, Milton D. Ribeiro
-
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
-
Publication number: 20110309759Abstract: Exemplary embodiments provide an apparatus, system and method for power conversion to provide power to solid state lighting, and which may be coupled to a first switch, such as a dimmer switch. An exemplary system comprises: a switching power supply; solid state lighting; a first adaptive interface circuit to provide a resistive impedance to the first switch and conduct current from the first switch in a default mode; and a second adaptive interface circuit to create a resonant process. An exemplary apparatus comprises: a switching power supply; and an adaptive interface circuit comprising a resistive impedance coupled in series to a reactive impedance to conduct current from the first switch in a first current path in a default mode, and further comprising a second switch coupled to the reactive impedance to conduct current from the first switch in a second current path, with the adaptive interface circuit further damping oscillation when the first switch turns on.Type: ApplicationFiled: December 15, 2010Publication date: December 22, 2011Applicant: EXCLARA INC.Inventors: Anatoly Shteynberg, Harry Rodriguez, Bradley M. Lehman, Dongsheng Zhou, Harlan H. Ohara
-
Patent number: 7956554Abstract: Exemplary embodiments of the invention provide a system, apparatus, and method of controlling an intensity and spectrum of light emitted from a solid state lighting system. The solid state lighting has a first emitted spectrum at full intensity and at a selected temperature, with a first electrical biasing for the solid state lighting producing a first wavelength shift, and a second electrical biasing for the solid state lighting producing a second, opposing wavelength shift. Exemplary embodiments provide for receiving information designating a selected intensity level or a selected temperature; and providing a combined first electrical biasing and second electrical biasing to the solid state lighting to generate emitted light having the selected intensity level and having a second emitted spectrum within a predetermined variance of the first emitted spectrum over a predetermined range of temperatures.Type: GrantFiled: October 29, 2007Date of Patent: June 7, 2011Assignee: Exclara, Inc.Inventors: Anatoly Shteynberg, Harry Rodriguez, Bradley M. Lehman, Dongsheng Zhou
-
Publication number: 20110121754Abstract: Exemplary embodiments provide an apparatus, system and method for power conversion to provide power to solid state lighting, and which may be coupled to a first switch, such as a dimmer switch. An exemplary system comprises: a switching power supply; solid state lighting; a first adaptive interface circuit to provide a resistive impedance to the first switch and conduct current from the first switch in a default mode; and a second adaptive interface circuit to create a resonant process. An exemplary apparatus comprises: a switching power supply; and an adaptive interface circuit comprising a resistive impedance coupled in series to a reactive impedance to conduct current from the first switch in a first current path in a default mode, and further comprising a second switch coupled to the reactive impedance to conduct current from the first switch in a second current path, with the adaptive interface circuit further damping oscillation when the first switch turns on.Type: ApplicationFiled: May 12, 2010Publication date: May 26, 2011Applicant: EXCLARA INC.Inventors: Anatoly Shteynberg, Harry Rodriguez, Dongsheng Zhou, Bradley M. Lehman
-
Publication number: 20110115394Abstract: Exemplary embodiments of the invention provide a system, apparatus, and method of controlling an intensity and spectrum of light emitted from a solid state lighting system. The solid state lighting has a first emitted spectrum at full intensity and at a selected temperature, with a first electrical biasing for the solid state lighting producing a first wavelength shift, and a second electrical biasing for the solid state lighting producing a second, opposing wavelength shift. Exemplary embodiments provide for receiving information designating a selected intensity level or a selected temperature; and providing a combined first electrical biasing and second electrical biasing to the solid state lighting to generate emitted light having the selected intensity level and having a second emitted spectrum within a predetermined variance of the first emitted spectrum over a predetermined range of temperatures.Type: ApplicationFiled: August 18, 2010Publication date: May 19, 2011Applicant: EXCLARA INC.Inventors: Anatoly Shteynberg, Harry Rodriguez, Bradley M. Lehman, Dongsheng Zhou
-
Patent number: 7880400Abstract: An apparatus, method and system are provided for controlling the solid state lighting, such as LEDs. An exemplary apparatus comprises: a switch for switching electrical current through the LEDs, a current sensor; a first comparator adapted to determine when a switch electrical current has reached a first predetermined threshold; a second comparator adapted to determine when the switch electrical current has reached a predetermined average current level; and a controller.Type: GrantFiled: September 21, 2007Date of Patent: February 1, 2011Assignee: Exclara, Inc.Inventors: Dongsheng Zhou, Anatoly Shteynberg, Harry Rodriguez, Mark Eason, Lanh Nguyen
-
Publication number: 20100313873Abstract: An outdoor stove is provided which includes a burner to project gaseous fuel, an ignition structure capable of generating multiple sparks to ignite such fuel for cooking purpose, and a support means to hold the burner, the ignition structure and a cooking vessel.Type: ApplicationFiled: June 12, 2009Publication date: December 16, 2010Inventors: Dongsheng Zhou, Danyun Zhou
-
Publication number: 20100308738Abstract: 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 first plurality of segments of LEDs; a plurality of switches coupled to the plurality of segments of LEDs to switch a selected segment into or out of a series LED current path in response to a control signal; a current sensor; and a controller which, in response to a first parameter and during a first part of an AC voltage interval, generates a first control signal to switch a corresponding segment of LEDs into the series LED current path; and during a second part of the AC voltage interval, generates a second control signal to switch a corresponding segment of LEDs out of the first series LED current path.Type: ApplicationFiled: March 22, 2010Publication date: December 9, 2010Applicant: EXCLARA INC.Inventors: Anatoly Shteynberg, Dongsheng Zhou, Harry Rodriguez, Mark Eason, Bradley M. Lehman, Stephen F. Dreyer, Thomas J. Riordan
-
Publication number: 20100308739Abstract: 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 first plurality of segments of LEDs; a plurality of switches coupled to the plurality of segments of LEDs to switch a selected segment into or out of a series LED current path in response to a control signal; a memory; and a controller which, in response to a first parameter and during a first part of an AC voltage interval, determines and stores in the memory a value of a second parameter and generates a first control signal to switch a corresponding segment of LEDs into the series LED current path; and during a second part of the AC voltage interval, when a current value of the second parameter is substantially equal to the stored value, generates a second control signal to switch a corresponding segment of LEDs out of the first series LED current path.Type: ApplicationFiled: June 4, 2009Publication date: December 9, 2010Applicant: EXCLARA INC.Inventors: Anatoly Shteynberg, Dongsheng Zhou, Harry Rodriguez, Mark Eason, Bradley M. Lehman, Stephen F. Dreyer, Thomas J. Riordan
-
Patent number: 7800315Abstract: Exemplary embodiments of the invention provide a system, apparatus, and method of controlling an intensity and spectrum of light emitted from a solid state lighting system. The solid state lighting has a first emitted spectrum at full intensity and at a selected temperature, with a first electrical biasing for the solid state lighting producing a first wavelength shift, and a second electrical biasing for the solid state lighting producing a second, opposing wavelength shift. Exemplary embodiments provide for receiving information designating a selected intensity level or a selected temperature; and providing a combined first electrical biasing and second electrical biasing to the solid state lighting to generate emitted light having the selected intensity level and having a second emitted spectrum within a predetermined variance of the first emitted spectrum over a predetermined range of temperatures.Type: GrantFiled: October 29, 2007Date of Patent: September 21, 2010Assignee: Exclara, Inc.Inventors: Anatoly Shteynberg, Harry Rodriguez, Bradley M. Lehman, Dongsheng Zhou
-
Publication number: 20100213859Abstract: Exemplary embodiments provide an apparatus, system and method for power conversion to provide power to solid state lighting, and which may be coupled to a first switch, such as a dimmer switch. An exemplary system for power conversion comprises: a switching power supply comprising a second, power switch; solid state lighting coupled to the switching power supply; a voltage sensor; a current sensor; a memory; a first adaptive interface circuit to provide a resistive impedance to the first switch and conduct current from the first switch in a default mode; a second adaptive interface circuit to create a resonant process when the first switch turns on; and a controller to modulate the second adaptive interface circuit when the first switch turns on to provide a current path during the resonant process of the switching power supply.Type: ApplicationFiled: December 16, 2009Publication date: August 26, 2010Applicant: EXCLARA INC.Inventors: Anatoly Shteynberg, Harry Rodriguez, Bradley M. Lehman, Dongsheng Zhou