Patents by Inventor DUEN HSING HSIEH
DUEN HSING HSIEH 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: 12276413Abstract: This document describes techniques directed to active thermal-control of a floodlight and associated floodlights. As described, an example floodlight includes a first heat-transfer subsystem that uses a fully enclosed heat sink to transfer heat from an array of LEDs to a first housing component of the floodlight. The floodlight further includes a second heat-transfer subsystem to transfer heat from one or more PSUs to a second housing component of the floodlight. Described techniques include using thermistors located throughout the floodlight to actively monitor a temperature profile within the floodlight and, if one or more operating-temperature thresholds are violated, reducing power consumption within the floodlight.Type: GrantFiled: November 21, 2023Date of Patent: April 15, 2025Assignee: Google LLCInventors: Ihab A. Ali, Duen Hsing Hsieh
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Publication number: 20240085011Abstract: This document describes techniques directed to active thermal-control of a floodlight and associated floodlights. As described, an example floodlight includes a first heat-transfer subsystem that uses a fully enclosed heat sink to transfer heat from an array of LEDs to a first housing component of the floodlight. The floodlight further includes a second heat-transfer subsystem to transfer heat from one or more PSUs to a second housing component of the floodlight. Described techniques include using thermistors located throughout the floodlight to actively monitor a temperature profile within the floodlight and, if one or more operating-temperature thresholds are violated, reducing power consumption within the floodlight.Type: ApplicationFiled: November 21, 2023Publication date: March 14, 2024Applicant: Google LLCInventors: Ihab A. Ali, Duen Hsing Hsieh
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Patent number: 11867386Abstract: This document describes techniques directed to active thermal-control of a floodlight and associated floodlights. As described, an example floodlight includes a first heat-transfer subsystem that uses a fully enclosed heat sink to transfer heat from an array of LEDs to a first housing component of the floodlight. The floodlight further includes a second heat-transfer subsystem to transfer heat from one or more PSUs to a second housing component of the floodlight. Described techniques include using thermistors located throughout the floodlight to actively monitor a temperature profile within the floodlight and, if one or more operating-temperature thresholds are violated, reducing power consumption within the floodlight.Type: GrantFiled: May 10, 2022Date of Patent: January 9, 2024Assignee: Google LLCInventors: Ihab A. Ali, Duen Hsing Hsieh
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Patent number: 11785744Abstract: This document describes a reinforced graphite heat-spreader for a surface of a housing component of an electronic device. The reinforced graphite heat-spreader includes a heat-spreader material stack having a layer of graphite material to spread heat. The reinforced graphite heat-spreader also includes an interface material stack that joins the heat-spreader material stack to the housing surface of an electronic device. The interface material stack, which may be formed using embossing techniques, includes protuberances that may be formed from an adhesive material.Type: GrantFiled: April 25, 2022Date of Patent: October 10, 2023Assignee: Google LLCInventors: Ihab A. Ali, Duen Hsing Hsieh
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Patent number: 11576238Abstract: This document describes systems and techniques that use a virtual temperature-sensor for active thermal-control of a lighting system having an array of LEDs. The system and techniques use a forward voltage across the array of LEDs as the virtual temperature-sensor, converting the forward voltage to a level that is detectable by an MCU of the lighting system. In response to determining that the forward voltage exceeds a threshold, the lighting system may reduce an amount of an electrical current provided to the array of LEDs to decrease the forward voltage and alleviate a thermal condition that may be detrimental to the array of LEDs, thereby maintaining luminance capabilities of the array of LEDs and prolonging life of the array of LEDs.Type: GrantFiled: February 22, 2021Date of Patent: February 7, 2023Assignee: Google LLCInventors: Duen Hsing Hsieh, Ihab A. Ali
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Publication number: 20220268434Abstract: This document describes techniques directed to active thermal-control of a floodlight and associated floodlights. As described, an example floodlight includes a first heat-transfer subsystem that uses a fully enclosed heat sink to transfer heat from an array of LEDs to a first housing component of the floodlight. The floodlight further includes a second heat-transfer subsystem to transfer heat from one or more PSUs to a second housing component of the floodlight. Described techniques include using thermistors located throughout the floodlight to actively monitor a temperature profile within the floodlight and, if one or more operating-temperature thresholds are violated, reducing power consumption within the floodlight.Type: ApplicationFiled: May 10, 2022Publication date: August 25, 2022Applicant: Google LLCInventors: Ihab A. Ali, Duen Hsing Hsieh
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Publication number: 20220272804Abstract: This document describes systems and techniques that use a virtual temperature-sensor for active thermal-control of a lighting system having an array of LEDs. The system and techniques use a forward voltage across the array of LEDs as the virtual temperature-sensor, converting the forward voltage to a level that is detectable by an MCU of the lighting system. In response to determining that the forward voltage exceeds a threshold, the lighting system may reduce an amount of an electrical current provided to the array of LEDs to decrease the forward voltage and alleviate a thermal condition that may be detrimental to the array of LEDs, thereby maintaining luminance capabilities of the array of LEDs and prolonging life of the array of LEDs.Type: ApplicationFiled: February 22, 2021Publication date: August 25, 2022Applicant: Google LLCInventors: Duen Hsing Hsieh, Ihab A. Ali
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Publication number: 20220248562Abstract: This document describes a reinforced graphite heat-spreader for a surface of a housing component of an electronic device. The reinforced graphite heat-spreader includes a heat-spreader material stack having a layer of graphite material to spread heat. The reinforced graphite heat-spreader also includes an interface material stack that joins the heat-spreader material stack to the housing surface of an electronic device. The interface material stack, which may be formed using embossing techniques, includes protuberances that may be formed from an adhesive material.Type: ApplicationFiled: April 25, 2022Publication date: August 4, 2022Inventors: Ihab A. Ali, Duen Hsing Hsieh
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Patent number: 11346539Abstract: This document describes techniques directed to active thermal-control of a floodlight and associated floodlights. As described, an example floodlight includes a first heat-transfer subsystem that uses a fully enclosed heat sink to transfer heat from an array of LEDs to a first housing component of the floodlight. The floodlight further includes a second heat-transfer subsystem to transfer heat from one or more PSUs to a second housing component of the floodlight. Described techniques include using thermistors located throughout the floodlight to actively monitor a temperature profile within the floodlight and, if one or more operating-temperature thresholds are violated, reducing power consumption within the floodlight.Type: GrantFiled: February 18, 2021Date of Patent: May 31, 2022Assignee: Google LLCInventors: Ihab A. Ali, Duen Hsing Hsieh
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Patent number: 11317538Abstract: This document describes a reinforced graphite heat-spreader for a surface of a housing component of an electronic device. The reinforced graphite heat-spreader includes a heat-spreader material stack having a layer of graphite material to spread heat. The reinforced graphite heat-spreader also includes an interface material stack that joins the heat-spreader material stack to the housing surface of an electronic device. The interface material stack, which may be formed using embossing techniques, includes protuberances that may be formed from an adhesive material.Type: GrantFiled: July 30, 2020Date of Patent: April 26, 2022Assignee: Google LLCInventors: Ihab A. Ali, Duen Hsing Hsieh
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Publication number: 20220039285Abstract: This document describes a reinforced graphite heat-spreader for a surface of a housing component of an electronic device. The reinforced graphite heat-spreader includes a heat-spreader material stack having a layer of graphite material to spread heat. The reinforced graphite heat-spreader also includes an interface material stack that joins the heat-spreader material stack to the housing surface of an electronic device. The interface material stack, which may be formed using embossing techniques, includes protuberances that may be formed from an adhesive material.Type: ApplicationFiled: July 30, 2020Publication date: February 3, 2022Applicant: Google LLCInventors: Ihab A. Ali, Duen Hsing Hsieh
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Patent number: 9468997Abstract: An apparatus provides conductive cooling of an information handling system. The apparatus includes a panel having a vent area formed in the panel. The vent area includes a perimeter, an interior section and a plurality of ribs that extend across the interior section. The vent area further includes several openings defined by lateral spacing between the ribs. The openings extend through the panel and are configured to receive cooling airflow into the openings and to discharge cooling air flow from the openings. A conductive heat sink layer is attached to the panel. The conductive heat sink layer covers a perimeter area surrounding the vent area, with strips of the conductive heat sink layer also covering the ribs, while leaving the openings between the ribs uncovered such that the strips of the conductive heat sink layer function to conduct additional heat away from the vent area along the ribs.Type: GrantFiled: July 7, 2014Date of Patent: October 18, 2016Assignee: DELL PRODUCTS, L.P.Inventors: Travis C. North, Duen Hsing Hsieh, Austin Michael Shelnutt, Christopher M. Helberg, Deeder M. Aurongzeb
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Publication number: 20160007497Abstract: An apparatus provides conductive cooling of an information handling system. The apparatus includes a panel having a vent area formed in the panel. The vent area includes a perimeter, an interior section and a plurality of ribs that extend across the interior section. The vent area further includes several openings defined by lateral spacing between the ribs. The openings extend through the panel and are configured to receive cooling airflow into the openings and to discharge cooling air flow from the openings. A conductive heat sink layer is attached to the panel. The conductive heat sink layer covers a perimeter area surrounding the vent area, with strips of the conductive heat sink layer also covering the ribs, while leaving the openings between the ribs uncovered such that the strips of the conductive heat sink layer function to conduct additional heat away from the vent area along the ribs.Type: ApplicationFiled: July 7, 2014Publication date: January 7, 2016Applicant: DELL PRODUCTS, L.P.Inventors: TRAVIS C. NORTH, DUEN HSING HSIEH, AUSTIN MICHAEL SHELNUTT, CHRISTOPHER M. HELBERG, DEEDER M. AURONGZEB