Patents by Inventor Madhu KRISHNAN
Madhu KRISHNAN 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: 20230118056Abstract: Systems and methods for coding and decoding of a coded bitstream is provided. A method includes encoding a block of a picture. The encoding includes selecting a transform set based on at least one neighboring sample from one or more previously encoded neighboring blocks or from a previously encoded picture and transforming coefficients of the block using a transform from the transform set.Type: ApplicationFiled: December 15, 2022Publication date: April 20, 2023Applicant: TENCENT AMERICA LLCInventors: Xin ZHAO, Madhu Krishnan, Shan Liu
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Publication number: 20220078423Abstract: Systems and methods for coding and decoding of a coded bitstream is provided. A method comprises decoding a block of a picture from a coded bitstream. The decoding includes selecting a transform set based on at least one neighboring reconstructed sample from one or more previously decoded neighboring blocks or from a previously decoded picture and inverse transforming coefficients of the block using a transform from the transform set.Type: ApplicationFiled: June 22, 2021Publication date: March 10, 2022Applicant: TENCENT AMERICA LLCInventors: Xin ZHAO, Madhu KRISHNAN, Shan LIU
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Patent number: 11109517Abstract: A server rack thermosiphon system includes a plurality of evaporators, each evaporator including a thermal interface for one or more heat-generating server rack devices; at least one condenser mounted to an external structure of a server rack, the condenser including a fluid-cooled heat transfer module; a liquid conduit that fluidly couples each of the evaporators to the condenser to deliver a liquid phase of a working fluid from the condenser to the evaporators; and a vapor conduit that fluidly couples each of the evaporators to the condenser to deliver a mixed phase of the working fluid from the evaporators to the condenser.Type: GrantFiled: August 29, 2019Date of Patent: August 31, 2021Assignee: Google LLCInventors: Soheil Farshchian, Madhu Krishnan Iyengar
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Publication number: 20200015387Abstract: A server rack thermosiphon system includes a plurality of evaporators, each evaporator including a thermal interface for one or more heat-generating server rack devices; at least one condenser mounted to an external structure of a server rack, the condenser including a fluid-cooled heat transfer module; a liquid conduit that fluidly couples each of the evaporators to the condenser to deliver a liquid phase of a working fluid from the condenser to the evaporators; and a vapor conduit that fluidly couples each of the evaporators to the condenser to deliver a mixed phase of the working fluid from the evaporators to the condenser.Type: ApplicationFiled: August 29, 2019Publication date: January 9, 2020Inventors: Soheil Farshchian, Madhu Krishnan Iyengar
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Patent number: 10448543Abstract: A server rack thermosiphon system includes a plurality of evaporators, each evaporator including a thermal interface for one or more heat-generating server rack devices; at least one condenser mounted to an external structure of a server rack, the condenser including a fluid-cooled heat transfer module; a liquid conduit that fluidly couples each of the evaporators to the condenser to deliver a liquid phase of a working fluid from the condenser to the evaporators; and a vapor conduit that fluidly couples each of the evaporators to the condenser to deliver a mixed phase of the working fluid from the evaporators to the condenser.Type: GrantFiled: May 4, 2015Date of Patent: October 15, 2019Assignee: Google LLCInventors: Soheil Farshchian, Madhu Krishnan Iyengar
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Patent number: 10130013Abstract: A data center cooling system includes an outer container that defines a first volume; an inner container that defines a second volume and is positioned within the first volume, the inner container including an air outlet that includes an airflow path between the first and second volumes; a liquid seal to fluidly isolate a liquid phase of a non-conductive coolant that fills at least a portion of the first and second volumes from an ambient environment; and a plurality of electronic heat-generating devices at least partially immersed in the liquid phase of the non-conductive coolant to transfer a heat load to the non-conductive coolant.Type: GrantFiled: November 23, 2016Date of Patent: November 13, 2018Assignee: Google LLCInventors: Madhu Krishnan Iyengar, Christopher G. Malone, Gregory P. Imwalle
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Patent number: 10032695Abstract: A semiconductor package includes a substrate, an integrated circuit disposed on the substrate, a memory support disposed on the integrated circuit, stacked memory disposed on the memory support and in communication with the integrated circuit, and a lid connected to the substrate. The integrated circuit has a low power region and a high power region. The memory support is disposed on the low power region of the integrated circuit and is configured to allow a flow of fluid therethrough to conduct heat away from the low power region of the integrated circuit. The lid defines a first port, a second port, and a lid volume fluidly connecting the first port and the second port. The lid volume is configured to house the integrated circuit, the memory support, and the stacked memory, while directing the flow of fluid to flow over the integrated circuit, the memory support, and the stacked memory.Type: GrantFiled: February 19, 2016Date of Patent: July 24, 2018Assignee: Google LLCInventors: Madhu Krishnan Iyengar, Teck-Gyu Kang, Christopher Gregory Malone, Norman Paul Jouppi
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Publication number: 20170243806Abstract: A semiconductor package includes a substrate, an integrated circuit disposed on the substrate, a memory support disposed on the integrated circuit, stacked memory disposed on the memory support and in communication with the integrated circuit, and a lid connected to the substrate. The integrated circuit has a low power region and a high power region. The memory support is disposed on the low power region of the integrated circuit and is configured to allow a flow of fluid therethrough to conduct heat away from the low power region of the integrated circuit. The lid defines a first port, a second port, and a lid volume fluidly connecting the first port and the second port. The lid volume is configured to house the integrated circuit, the memory support, and the stacked memory, while directing the flow of fluid to flow over the integrated circuit, the memory support, and the stacked memory.Type: ApplicationFiled: February 19, 2016Publication date: August 24, 2017Applicant: Google Inc.Inventors: Madhu Krishnan Iyengar, Teck-Gyu Kang, Christopher Gregory Malone, Norman Paul Jouppi
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Patent number: 9596787Abstract: A data center cooling system includes an outer container that defines a first volume; an inner container that defines a second volume and is positioned within the first volume, the inner container including an air outlet that includes an airflow path between the first and second volumes; a liquid seal to fluidly isolate a liquid phase of a non-conductive coolant that fills at least a portion of the first and second volumes from an ambient environment; and a plurality of electronic heat-generating devices at least partially immersed in the liquid phase of the non-conductive coolant to transfer a heat load to the non-conductive coolant.Type: GrantFiled: November 6, 2014Date of Patent: March 14, 2017Assignee: Google Inc.Inventors: Madhu Krishnan Iyengar, Christopher G. Malone, Gregory P. Imwalle
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Publication number: 20160330873Abstract: A server rack thermosiphon system includes a plurality of evaporators, each evaporator including a thermal interface for one or more heat-generating server rack devices; at least one condenser mounted to an external structure of a server rack, the condenser including a fluid-cooled heat transfer module; a liquid conduit that fluidly couples each of the evaporators to the condenser to deliver a liquid phase of a working fluid from the condenser to the evaporators; and a vapor conduit that fluidly couples each of the evaporators to the condenser to deliver a mixed phase of the working fluid from the evaporators to the condenser.Type: ApplicationFiled: May 4, 2015Publication date: November 10, 2016Inventors: Soheil Farshchian, Madhu Krishnan Iyengar