Patents by Inventor Hai Ngoc Nguyen
Hai Ngoc Nguyen 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: 11936663Abstract: An example method includes detecting, using sensors, packets throughout a datacenter. The sensors can then send packet logs to various collectors which can then identify and summarize data flows in the datacenter. The collectors can then send flow logs to an analytics module which can identify the status of the datacenter and detect an attack.Type: GrantFiled: November 9, 2022Date of Patent: March 19, 2024Assignee: Cisco Technology, Inc.Inventors: Navindra Yadav, Abhishek Ranjan Singh, Shashidhar Gandham, Ellen Christine Scheib, Omid Madani, Ali Parandehgheibi, Jackson Ngoc Ki Pang, Vimalkumar Jeyakumar, Michael Standish Watts, Hoang Viet Nguyen, Khawar Deen, Rohit Chandra Prasad, Sunil Kumar Gupta, Supreeth Hosur Nagesh Rao, Anubhav Gupta, Ashutosh Kulshreshtha, Roberto Fernando Spadaro, Hai Trong Vu, Varun Sagar Malhotra, Shih-Chun Chang, Bharathwaj Sankara Viswanathan, Fnu Rachita Agasthy, Duane Thomas Barlow
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Patent number: 11588345Abstract: Example implementations relate to concurrent alternating-current and direct-current. In one example, a device comprises a power module connected to a first power outlet, the power module connected to a second power outlet, and a controller to the power module to concurrently provide alternating-current (AC) power to the first power outlet and direct-current (DC) power to the second power outlet by switching a transistor including switching circuitry in response to an absence of AC input power to the device.Type: GrantFiled: October 19, 2020Date of Patent: February 21, 2023Assignee: Hewlett Packard Enterprise Development LPInventors: Hai Ngoc Nguyen, Abhishek Banerjee
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Patent number: 11147184Abstract: According to some examples, solutions are provided for power distribution of input alternating current (AC) power to at least one power outlet while the input AC power is available, charging of a set of batteries by the input AC power while the input AC power is available, and power distribution of direct current (DC) power from the set of batteries to the power outlet when the input AC power is not available. For such examples, the power outlet is capable of conducting AC power and DC power to a load that is coupled to the power outlet and that can receive either AC power or DC power.Type: GrantFiled: September 11, 2015Date of Patent: October 12, 2021Assignee: Hewlett Packard Enterprise Development LPInventors: Hai Ngoc Nguyen, Darrel G. Gaston, Abhishek Banerjee
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Patent number: 10928874Abstract: In one example, a system for bypass switch control includes a controller coupled to a number of backup power modules and to a number of bypass switches that correspond to each of the number of backup power modules, wherein the controller activates a bypass switch when a corresponding backup power module is deactivated.Type: GrantFiled: October 29, 2015Date of Patent: February 23, 2021Assignee: Hewlett Packard Enterprise Development LPInventors: Hai Ngoc Nguyen, Abhishek Banerjee, Darrel G. Gaston
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Publication number: 20210044141Abstract: In one example, a system for parallel output of backup power modules includes a first backup power module coupled to an input and a first output of an enclosure, a second backup power module coupled to the input and a second output of the enclosure, wherein the second backup power module is coupled in parallel with the first backup power module, and a switch coupling the first backup power module and the first output of the enclosure to the second output of the enclosure.Type: ApplicationFiled: October 22, 2020Publication date: February 11, 2021Inventors: Hai Ngoc Nguyen, Abhishek Banerjee, Darrel G. Gaston
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Publication number: 20210036543Abstract: Example implementations relate to concurrent alternating-current and direct-current. In one example, a device comprises a power module connected to a first power outlet, the power module connected to a second power outlet, and a controller to the power module to concurrently provide alternating-current (AC) power to the first power outlet and direct-current (DC) power to the second power outlet by switching a transistor including switching circuitry in response to an absence of AC input power to the device.Type: ApplicationFiled: October 19, 2020Publication date: February 4, 2021Inventors: Hai Ngoc Nguyen, Abhishek Banerjee
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Patent number: 10845859Abstract: In one example, a system for parallel output of backup power modules includes a first backup power module coupled to an input and a first output of an enclosure, a second backup power module coupled to the input and a second output of the enclosure, wherein the second backup power module is coupled in parallel with the first backup power module, and a switch coupling the first backup power module and the first output of the enclosure to the second output of the enclosure.Type: GrantFiled: October 29, 2015Date of Patent: November 24, 2020Assignee: Hewlett Packard Enterprise Development LPInventors: Hai Ngoc Nguyen, Abhishek Banerjee, Darrel G. Gaston
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Patent number: 10840734Abstract: Example implementations relate to concurrent alternating-current and direct-current. In one example, a device comprises a power module connected to a first power outlet, the power module connected to a second power outlet, and a controller to the power module to concurrently provide alternating-current (AC) power to the first power outlet and direct-current (DC) power to the second power outlet by switching a transistor including switching circuitry in response to an absence of AC input power to the device.Type: GrantFiled: January 28, 2016Date of Patent: November 17, 2020Assignee: Hewlett Packard Enterprise Development LPInventors: Hai Ngoc Nguyen, Abhishek Banerjee
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Patent number: 10804735Abstract: Techniques for providing an uninterruptible power supply are disclosed. An example system includes three single-phase Uninterruptible Power Supplies (UPSs) and an adapter. The adapter is to receive three-phase AC power, and separate the three-phase AC power into three separate single-phase outputs. Each single-phase output is coupled to an input of one of the three single-phase UPSs. An output of each one of the single-phase UPSs is coupled to one of three single-phase inputs of the adapter, and the adapter is to combine the three single-phase inputs into a single three-phase output.Type: GrantFiled: January 29, 2016Date of Patent: October 13, 2020Assignee: Hewlett Packard Enterprise Development LPInventors: Hai Ngoc Nguyen, Daniel Hsieh, Abhishek Banerjee
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Patent number: 10797361Abstract: According to an example, a battery is charged using a charge voltage based on a present state of charge of the battery and a present ambient temperature of the battery. Additionally, the charge voltage may be based on the present state of charge of the battery, the present ambient temperature of the battery, and an age of the battery. The charge voltage may be retrieved from a lookup table that includes a plurality of reference charge voltage values at which to charge the battery for different ambient temperatures, different states of charge, or different ages of the battery.Type: GrantFiled: June 16, 2015Date of Patent: October 6, 2020Assignee: Hewlett Packard Enterprise Development LPInventors: Hai Ngoc Nguyen, Chiung-Chao Hsieh, Abhishek Banerjee
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Patent number: 10664034Abstract: Examples herein disclose receiving a communication indicating a number of loads supported by multiple nodes and determining an amount of power available at a backup power source. Based on the determination of the amount of power, the examples disclose delivering power to the multiple nodes from the backup power source.Type: GrantFiled: April 28, 2014Date of Patent: May 26, 2020Assignee: Hewlett Packard Enterprise Development LPInventors: Hai Ngoc Nguyen, Han Wang, Patrick A Raymond, Raghavan V Venugopal
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Patent number: 10620857Abstract: Example implementations relate to combined backup power. For example, a system for combined backup power can include a combined backup power supply (CBPS) coupled to a node and a plurality of loads supported by the node. The CBPS can include an uninterruptible power supply (UPS) and a backup power supply coupled to the UPS to act as redundancy for the UPS.Type: GrantFiled: October 31, 2014Date of Patent: April 14, 2020Assignee: Hewlett Packard Enterprise Development LPInventors: Hai Ngoc Nguyen, Han Wang, Patrick A. Raymond, Raghavan V. Venugopal
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Patent number: 10615436Abstract: An example system is provided herein. The system includes a fuel cell coupled to the set of electronic components. The fuel cell provides power to the set of electronic components when a set of conditions are met.Type: GrantFiled: December 22, 2015Date of Patent: April 7, 2020Assignee: Hewlett Packard Enterprise Development LPInventors: Tahir Cader, Hai Ngoc Nguyen, Javier F. Izquierdo, Ameya Soparkar, Mark Joseph Lepore
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Patent number: 10591968Abstract: Described are examples of back-up power apparatuses and systems including such back-up power apparatuses. An example may include a battery module, and a back-up power control module to determine a back-up power demand of a host device and selectively enable an output of power from the battery module to the host device if the battery module has a power capacity greater than the back-up power demand.Type: GrantFiled: September 30, 2013Date of Patent: March 17, 2020Assignee: Hewlett Packard Enterprise Development LPInventors: Hai Ngoc Nguyen, Han Wang, Patrick A. Raymond
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Patent number: 10374455Abstract: In an example, an apparatus includes a charger for rectifying a direct current charge from an input alternating current voltage. A battery pack stores the direct current charge in a first string of battery modules and a second string of battery modules. An inverter is connected directly to the battery pack and inverts the direct current voltage to an output alternating current voltage. In one example, the first string of battery modules is directly connected to the inverter in parallel with the second string of battery modules.Type: GrantFiled: April 29, 2016Date of Patent: August 6, 2019Assignee: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LPInventors: Hai Ngoc Nguyen, Abhishek Banerjee
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Patent number: 10348123Abstract: A system in accordance with an example includes a first load and a second load. The first load includes a first power supply connected to a first uninterruptible power supply (UPS). The second load includes a second power supply connected to a second UPS, where the first UPS is connected to the second UPS. The first power supply is to deliver power to the first load and to the second load when power to the second load is disabled, and the second power supply is to deliver power to the second load and to the first load when power to the first load is disabled.Type: GrantFiled: December 14, 2013Date of Patent: July 9, 2019Assignee: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LPInventor: Hai Ngoc Nguyen
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Publication number: 20190044373Abstract: Techniques for providing an uninterruptible power supply are disclosed. An example system includes three single-phase Uninterruptible Power Supplies (UPSs) and an adapter. The adapter is to receive three-phase AC power, and separate the three-phase AC power into three separate single-phase outputs. Each single-phase output is coupled to an input of one of the three single-phase UPSs. An output of each one of the single-phase UPSs is coupled to one of three single-phase inputs of the adapter, and the adapter is to combine the three single-phase inputs into a single three-phase output.Type: ApplicationFiled: January 29, 2016Publication date: February 7, 2019Inventors: Hai Ngoc Nguyen, Daniel Hsieh, Abhishek Banerjee
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Patent number: 10191681Abstract: Example implementations relate to placing loads in a self-refresh mode using a shared backup power supply. For example, a shared backup power supply system can include a node coupled to a shared backup power supply. The node can include a plurality of loads that include volatile memory and a processing resource to place the plurality of loads in a self-refresh mode in response to a failure of a primary power supply. A shared backup power supply system can also include the shared backup power supply to provide backup power to the plurality of loads in the self-refresh mode in response to the failure of the primary power supply.Type: GrantFiled: October 31, 2014Date of Patent: January 29, 2019Assignee: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LPInventors: Hai Ngoc Nguyen, Han Wang, Patrick A. Raymond, Raghavan V. Venugopal
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Patent number: 10193360Abstract: An uninterruptible power supply (UPS) includes a first battery set and a second battery set. The UPS includes a charging circuit to charge the battery sets using alternating current (AC) power. The UPS includes a slot receptive to insertion of different types of output modules that each include an inverter to convert direct current (DC) power from the first and second battery sets, including a first type that connects the first and second battery sets in parallel and a second type that connects the battery first and second sets in series.Type: GrantFiled: April 29, 2016Date of Patent: January 29, 2019Assignee: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LPInventors: Abhishek Banerjee, Hai Ngoc Nguyen
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Patent number: 10177596Abstract: Examples disclosed herein involve backup power management. In an example, an amount of backup power to power a load bank is estimated, a set of power sources are selected from a plurality of power sources based on respective states of charge of the plurality of power sources and the estimated amount of backup power, and the selected set of power sources are placed in circuit to provide backup power to the load bank via the selected set of power sources.Type: GrantFiled: July 8, 2016Date of Patent: January 8, 2019Assignee: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LPInventors: Hai Ngoc Nguyen, Abhishek Banerjee