Patents by Inventor Kah Hoe Ng
Kah Hoe Ng 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: 11949522Abstract: One aspect provides a power sourcing equipment controller for providing power to a powered device using power-over-Ethernet (PoE). The power sourcing equipment includes a voltage-output logic block to output a sequence of voltage signals, the voltage signals comprising at least a detection signal and a classification signal; a current-measurement logic block to measure current provided responsive to the voltage signals; a backoff-time-determination logic block to determine a backoff time in response to the current-measurement logic block detecting the provided current exceeding a predetermined threshold, the backoff time being determined based on an amount of time needed for discharging an internal capacitor associated with the powered device; and a timing logic block to cause the voltage-output logic block to delay the output of a next sequence of voltage signals based on the determined backoff time, thereby facilitating powering up of a device compliant with a different PoE standard.Type: GrantFiled: August 5, 2021Date of Patent: April 2, 2024Assignee: Hewlett Packard Enterprise Development LPInventors: Shiyu Tian, Kah Hoe Ng, Hong Yi Wee
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Publication number: 20240098952Abstract: Example implementations relate to an integrated circuit (IC) package, an electronic device having the IC package, and a method of assembling the IC package to a printed circuit board (PCB) of the electronic device. The IC package includes a substrate, a chip, and an electromagnetic shield. The chip is coupled to the substrate. The electromagnetic shield is coupled to the substrate such that the chip is enclosed between the substrate and the electromagnetic shield. The electromagnetic shield includes a ferromagnetic material. Further, the electromagnetic shield protrudes beyond the substrate and is electrically grounded to the PCB to prevent an electromagnetic interference (EMI) noise from radiating through the IC package.Type: ApplicationFiled: September 16, 2022Publication date: March 21, 2024Inventors: See Yun Yow, Kah Hoe Ng, Chien-Shuo Tang
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Patent number: 11797070Abstract: Systems and methods disclosed herein allow efficient reallocation of PoE when a PSU for a PSE fails. A PSE initially receives power from at least two PSUs and provides PoE to at least two PDs. When power from one of the PSUs becomes unavailable, the PSE refrains from providing PoE to a first PD, but continues providing PoE to a second PD. The PSE sends a communication to the second PD requesting that the second PD allow the PSE to allocate less power to the second. If the second PD confirms that allocating less power to the second PD is acceptable, the PSE reduces the amount of power allocated to the second PD and allocates at least some of the power saved by the reduction to the first PD.Type: GrantFiled: July 10, 2020Date of Patent: October 24, 2023Assignee: Hewlett Packard Enterprise Development LPInventors: Hong Yi Wee, Kah Hoe Ng, Shiyu Tian
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Patent number: 11747886Abstract: Example implementations relate to a power sourcing equipment (PSE), and a method of reallocating power to one or more powered devices (PDs) by the PSE, before a swap event of a power supply unit (PSU). The method includes receiving an information about the swap event, determining based on the information that the swap event is expected to cause powering down of the one or more PDs, and requesting a first PD among the one or more PDs to permit the PSE to reduce an initial value of power allocated to the first PD. Further, the method includes reducing an amount of power to the first PD from the initial value to a reduced value of power based on a response from the first PD, and reallocating the reduced value of the power to the first PD to avoid powering down of the one or more PDs during the swap event.Type: GrantFiled: February 2, 2022Date of Patent: September 5, 2023Assignee: Hewlett Packard Enterprise Development LPInventors: Hong Yi Wee, Kah Hoe Ng, Shiyu Tian
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Publication number: 20230244295Abstract: Example implementations relate to a power sourcing equipment (PSE), and a method of reallocating power to one or more powered devices (PDs) by the PSE, before a swap event of a power supply unit (PSU). The method includes receiving an information about the swap event, determining based on the information that the swap event is expected to cause powering down of the one or more PDs, and requesting a first PD among the one or more PDs to permit the PSE to reduce an initial value of power allocated to the first PD. Further, the method includes reducing an amount of power to the first PD from the initial value to a reduced value of power based on a response from the first PD, and reallocating the reduced value of the power to the first PD to avoid powering down of the one or more PDs during the swap event.Type: ApplicationFiled: February 2, 2022Publication date: August 3, 2023Inventors: Hong Yi Wee, Kah Hoe Ng, Shiyu Tian
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Publication number: 20230038813Abstract: One aspect provides a power sourcing equipment controller for providing power to a powered device using power-over-Ethernet (PoE). The power sourcing equipment includes a voltage-output logic block to output a sequence of voltage signals, the voltage signals comprising at least a detection signal and a classification signal; a current-measurement logic block to measure current provided responsive to the voltage signals; a backoff-time-determination logic block to determine a backoff time in response to the current-measurement logic block detecting the provided current exceeding a predetermined threshold, the backoff time being determined based on an amount of time needed for discharging an internal capacitor associated with the powered device; and a timing logic block to cause the voltage-output logic block to delay the output of a next sequence of voltage signals based on the determined backoff time, thereby facilitating powering up of a device compliant with a different PoE standard.Type: ApplicationFiled: August 5, 2021Publication date: February 9, 2023Inventors: Shiyu Tian, Kah Hoe Ng, Hong Yi Wee
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Publication number: 20220011841Abstract: Systems and methods disclosed herein allow efficient reallocation of PoE when a PSU for a PSE fails. A PSE initially receives power from at least two PSUs and provides PoE to at least two PDs. When power from one of the PSUs becomes unavailable, the PSE refrains from providing PoE to a first PD, but continues providing PoE to a second PD. The PSE sends a communication to the second PD requesting that the second PD allow the PSE to allocate less power to the second. If the second PD confirms that allocating less power to the second PD is acceptable, the PSE reduces the amount of power allocated to the second PD and allocates at least some of the power saved by the reduction to the first PD.Type: ApplicationFiled: July 10, 2020Publication date: January 13, 2022Inventors: Hong Yi Wee, Kah Hoe Ng, Shiyu Tian
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Patent number: 11171794Abstract: Systems and methods are provided for 8-channel surge protection for a network utilizing Power Over Ethernet (PoE). Four Bob Smith terminations are arranged such that one Bob Smith termination is coupled to each of four PoE nodes. Each Bob Smith termination includes a capacitor and a resistor pair coupled in series between its respective PoE node and a respective Bob Smith termination node, wherein a first pair of the Bob Smith terminations is connected between their respective PoE nodes and a first Bob Smith node and a second pair of the Bob Smith terminations is connected between their respective PoE nodes and a second Bob Smith node. The first Bob Smith node is capacitively isolated from ground via a first terminating capacitor component and a second Bob Smith node is capacitively isolated from ground via a second terminating capacitor component separate from the first terminating capacitor component.Type: GrantFiled: September 17, 2020Date of Patent: November 9, 2021Assignee: Hewlett Packard Enterprise Development LPInventors: Kah Hoe Ng, Tzye Perng Poh, Khai Chiah Chng
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Patent number: 10693665Abstract: A method is provided to conserve power in a power sourcing equipment (PSE) that provides a PSE port voltage at PSE ports. The method includes, in response to detecting a powered device (PD) is connected to the PSE port, providing a power supply output voltage at a default value and turning on the PSE port. After turning on the PSE port, the method includes determining the PSE port voltage. When the PSE port voltage is greater than a threshold value, the method includes decreasing the power supply output voltage.Type: GrantFiled: April 24, 2014Date of Patent: June 23, 2020Assignee: Hewlett Packard Enterprise Development LPInventors: Su Yin Ho, Kah Hoe Ng, Kay Seah Ng
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Patent number: 10346037Abstract: A handheld electronic device is disclosed. The handheld electronic device comprises a first touch sensing device located in a first region of the handheld electronic device and a second touch sensing device located in a second different region on the handheld electronic device. The handheld electronic device may further include a disabling module to automatically disable the second touch sensing device if a keyboard input is requested and a virtual keyboard is displayed on the first touch sensing device.Type: GrantFiled: March 22, 2013Date of Patent: July 9, 2019Assignee: Hewlett-Packard Development Company, L.P.Inventors: Kay Seah Ng, Kah Hoe Ng, Tzye Perng Poh
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Publication number: 20170054567Abstract: A method is provided to conserve power in a power sourcing equipment (PSE) that provides a PSE port voltage at PSE ports. The method includes, in response to detecting a powered device (PD) is connected to the PSE port, providing a power supply output voltage at a default value and turning on the PSE port. After turning on the PSE port, the method includes determining the PSE port voltage. When the PSE port voltage is greater than a threshold value, the method includes decreasing the power supply output voltage.Type: ApplicationFiled: April 24, 2014Publication date: February 23, 2017Inventors: Su Yin Ho, Kah Hoe Ng, Kay Seah Ng
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Patent number: 9317075Abstract: An example provides an apparatus including a shielding panel in spaced relation to a substrate such that a heat sink mounted on the substrate protrudes through an opening in the shielding panel. A first airflow path may be provided between the substrate and a first side of the shielding panel, and a second airflow path may be provided on a second side of the shielding panel across a portion of the heat sink protruding through the opening.Type: GrantFiled: April 29, 2013Date of Patent: April 19, 2016Assignee: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LPInventors: Kah Hoe Ng, Tzye Perng Poh, Kian Teck Poh
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Publication number: 20160018986Abstract: A handheld electronic device is disclosed. The handheld electronic device comprises a first touch sensing device located in a first region of the handheld electronic device and a second touch sensing device located in a second different region on the handheld electronic device. The handheld electronic device may further include a disabling module to automatically disable the second touch sensing device if a keyboard input is requested and a virtual keyboard is displayed on the first touch sensing device.Type: ApplicationFiled: March 22, 2013Publication date: January 21, 2016Inventors: Kay Seah Ng, KAH HOE NG, TZYE PERNG POH
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Patent number: 9223378Abstract: The speed of a processor is adjusted based on the current sensed by a current sensor in order to protect a fuse from being damaged.Type: GrantFiled: September 26, 2012Date of Patent: December 29, 2015Assignee: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LPInventors: Kay Seah Ng, Kah Hoe Ng, Koh Yew Thoon
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Publication number: 20140321062Abstract: A heat sink that is suitable for mounting on a printed circuit board (PCB) and dissipating heat from an integrated chip (IC).Type: ApplicationFiled: April 25, 2013Publication date: October 30, 2014Applicant: Hewlett-Packard Development Company, L.P.Inventors: Kah Hoe Ng, Tzye Perng Poh, Kay Seah Ng
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Publication number: 20140321051Abstract: An example provides an apparatus including a shielding panel in spaced relation to a substrate such that a heat sink mounted on the substrate protrudes through an opening in the shielding panel. A first airflow path may be provided between the substrate and a first side of the shielding panel, and a second airflow path may be provided on a second side of the shielding panel across a portion of the heat sink protruding through the opening.Type: ApplicationFiled: April 29, 2013Publication date: October 30, 2014Applicant: Hewlett-Packard Development Company, L.P.Inventors: Kah Hoe Ng, Tzye Perng Poh, Kian Teck Poh
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Publication number: 20130314201Abstract: A method of forming a fusible link on a printed circuit board. The method comprises integrally forming a first end pad, a second end pad, and a fusible link between the first and the second end pads on the printed circuit board; wherein the cross-sectional area of the fusible link is smaller than that of the first and second end pads.Type: ApplicationFiled: May 23, 2012Publication date: November 28, 2013Inventors: Tzye Perng Poh, Leng Hoo Tan, Kah Hoe Ng