Patents by Inventor Hsien Tsung Lin
Hsien Tsung Lin 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: 20240295909Abstract: Methods, systems, and devices for providing computer-implemented services are disclosed. To provide the computer-implemented services, graphics processing units cooled using liquid assisted air cooling may be utilized. In the event of failure of liquid assisted air cooling, the extent of the failure may be identified. A response based on the extent of the failure may be implemented to reduce an impact on workloads performed by the graphics processing units. By customizing the response, the workloads may be preserved even when cooling for some of the graphics processing units is unavailable.Type: ApplicationFiled: March 1, 2023Publication date: September 5, 2024Inventors: CHANDRASEKHAR MUGUNDA, RUI AN, HSIEN-TSUNG LIN, SYAMU SAJJA
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Patent number: 11594870Abstract: A hot-swap circuit for providing soft start and overcurrent protection to an electronic circuit may include a controller and a timer. The controller may be configured to sense an electrical current associated with the hot-swap circuit, based on the electrical current sensed, perform current limiting of the electrical current to minimize inrush current to the electronic circuit, and disable the electrical current from flowing to the electronic circuit in response to the electrical current exceeding an overcurrent threshold for longer than a duration of a fault timer. The timer circuit may be configured to, for a period of time after enabling of the hot-swap circuit, cause the duration of the fault timer to be a first duration, and after the period of time, cause the duration of the fault timer to be a second duration significantly shorter than the first duration.Type: GrantFiled: April 18, 2019Date of Patent: February 28, 2023Assignee: Dell Products L.P.Inventors: Wen-Hung Huang, Kunrong Wang, Hsien Tsung Lin
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Publication number: 20200335961Abstract: A hot-swap circuit for providing soft start and overcurrent protection to an electronic circuit may include a controller and a timer. The controller may be configured to sense an electrical current associated with the hot-swap circuit, based on the electrical current sensed, perform current limiting of the electrical current to minimize inrush current to the electronic circuit, and disable the electrical current from flowing to the electronic circuit in response to the electrical current exceeding an overcurrent threshold for longer than a duration of a fault timer. The timer circuit may be configured to, for a period of time after enabling of the hot-swap circuit, cause the duration of the fault timer to be a first duration, and after the period of time, cause the duration of the fault timer to be a second duration significantly shorter than the first duration.Type: ApplicationFiled: April 18, 2019Publication date: October 22, 2020Applicant: Dell Products L.P.Inventors: Wen-Hung HUANG, Kunrong WANG, Hsien Tsung LIN
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Patent number: 9822898Abstract: A circuit may include a source input for receiving an input voltage, a load output for generating an output voltage, a load switch coupled at its source to the source input and coupled at its drain to the load output which is configured to pass the input voltage to the load output when the load switch is activated, an enable input for receiving an enable voltage which is indicative of whether the load switch is to be activated or deactivated, and a leakage reduction circuit coupled between the enable input and a gate of the load switch, wherein the leakage reduction circuit is configured to electrically couple the gate of the load switch to the source of the load switch such that a source-to-gate voltage is maintained below a threshold voltage for activating the load switch when the enable voltage indicates that the load switch is to be deactivated.Type: GrantFiled: September 30, 2015Date of Patent: November 21, 2017Assignee: Dell Products L.P.Inventors: Wen-Hung Huang, Hsien Tsung Lin, Chih-Kai Wang
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Publication number: 20170090487Abstract: A circuit may include a source input for receiving an input voltage, a load output for generating an output voltage, a load switch coupled at its source to the source input and coupled at its drain to the load output which is configured to pass the input voltage to the load output when the load switch is activated, an enable input for receiving an enable voltage which is indicative of whether the load switch is to be activated or deactivated, and a leakage reduction circuit coupled between the enable input and a gate of the load switch, wherein the leakage reduction circuit is configured to electrically couple the gate of the load switch to the source of the load switch such that a source-to-gate voltage is maintained below a threshold voltage for activating the load switch when the enable voltage indicates that the load switch is to be deactivated.Type: ApplicationFiled: September 30, 2015Publication date: March 30, 2017Inventors: Wen-Hung Huang, Hsien Tsung Lin, Chih-Kai Wang
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Patent number: 8938635Abstract: A method for managing an alternating current adaptor system is disclosed. A direct current voltage is received at a high impedance power delivery network from a primary side of an alternating current adaptor system. An isolated voltage is output from the high impedance power delivery network to components of a secondary side of the alternating current adaptor system. A transition in a power state identification of an information handling system associated with the alternating current adaptor system is detected. An output voltage level of the alternating current adaptor system is alternated in response to the transition in the power state identification of the information handling system.Type: GrantFiled: August 26, 2013Date of Patent: January 20, 2015Assignee: Dell Products, LPInventors: Yung Fa Chueh, Chih-Chieh Yin, Chin-Jui Liu, Hsien Tsung Lin
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Patent number: 8683241Abstract: A method for reducing current leakage in a battery in communication with an information handling system (IHS). The method includes providing a battery management unit (BMU) in the battery, the BMU in communication with an embedded controller (EC), the BMU in a standby mode while the battery is coupled to the IHS, and configuring the BMU to exit the standby mode if an external power supply is coupled to the IHS. Also disclosed is an IHS which includes an EC in communication with a BMU, a power switch in communication with the EC and the BMU, and a control switch configured to be switched on if an external power supply is coupled to the IHS or if the power switch is activated without the external power supply, wherein the BMU unit exits the standby mode if the control switch is switched on.Type: GrantFiled: December 25, 2009Date of Patent: March 25, 2014Assignee: Dell Products L.P.Inventors: Hsien Tsung Lin, Chih-Chieh Yin, Chin-Jui Liu
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Patent number: 8645720Abstract: A power adaptor detection system includes a power adaptor device configured to receive electrical power at a first voltage and to convert the electrical power to a second voltage. The second voltage has a lower value than the first voltage. An identification generating circuit is coupled to the power adaptor device. The identification generating circuit is configured to convert a portion of the electrical power to a substantially constant value electrical current. An identification detection circuit is configured to detect the second voltage. Detecting the second voltage causes the identification circuit to determine the value of a pulse of the electrical current, wherein the value of the electrical current is an identification attribute of the power adaptor device.Type: GrantFiled: January 20, 2010Date of Patent: February 4, 2014Assignee: Dell Products L.P.Inventors: So-Yu Weng, Hsien Tsung Lin
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Patent number: 8638516Abstract: An information handling system includes a free fall sensing system having an amplifier and sampling circuit, a sampling data analyzer, a sampling clock duration controller, and a sampling clock generator. The amplifier and sampling circuit is configured to sample data signals from the free fall sensor based on an initial sampling signal and based on a variable sampling signal. The sampling data analyzer is configured to compare a magnitude of sampled data point to a predetermined magnitude, to output an alert signal when the magnitude of the sampled data point is below the predetermined magnitude. The sampling clock duration controller is configured to vary a duration and a frequency of a sampling signal control in response to the alert signal. The sampling clock generator is configured to send a variable sampling signal to the amplifier and sampling circuit in response to the variation of the duration and the frequency of the sampling signal control.Type: GrantFiled: December 21, 2012Date of Patent: January 28, 2014Assignee: Dell Products, LPInventors: Hsien Tsung Lin, Jih Hsin Pan
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Publication number: 20130346784Abstract: A method for managing an alternating current adaptor system is disclosed. A direct current voltage is received at a high impedance power delivery network from a primary side of an alternating current adaptor system. An isolated voltage is output from the high impedance power delivery network to components of a secondary side of the alternating current adaptor system. A transition in a power state identification of an information handling system associated with the alternating current adaptor system is detected. An output voltage level of the alternating current adaptor system is alternated in response to the transition in the power state identification of the information handling system.Type: ApplicationFiled: August 26, 2013Publication date: December 26, 2013Applicant: Dell Products, LPInventors: Yung Fa Chueh, Chih-Chieh Yin, Chin-Jui Lin, Hsien Tsung Lin
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Patent number: 8543859Abstract: A method for managing an alternating current adaptor system is disclosed. A direct current voltage is received at a high impedance power delivery network from a primary side of an alternating current adaptor system. An isolated voltage is output from the high impedance power delivery network to components of a secondary side of the alternating current adaptor system. A transition in a power state identification of an information handling system associated with the alternating current adaptor system is detected. An output voltage level of the alternating current adaptor system is alternated in response to the transition in the power state identification of the information handling system.Type: GrantFiled: March 12, 2010Date of Patent: September 24, 2013Assignee: Dell Products, LPInventors: Yung Fa Chueh, Chih-Chieh Yin, Chin-Jui Liu, Hsien Tsung Lin
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Patent number: 8363344Abstract: An information handling system includes a free fall sensing system having an amplifier and sampling circuit, a sampling data analyzer, a sampling clock duration controller, and a sampling clock generator. The amplifier and sampling circuit is configured to sample data signals from the free fall sensor based on an initial sampling signal and based on a variable sampling signal. The sampling data analyzer is configured to compare a magnitude of sampled data point to a predetermined magnitude, to output an alert signal when the magnitude of the sampled data point is below the predetermined magnitude. The sampling clock duration controller is configured to vary a duration and a frequency of a sampling signal control in response to the alert signal. The sampling clock generator is configured to send a variable sampling signal to the amplifier and sampling circuit in response to the variation of the duration and the frequency of the sampling signal control.Type: GrantFiled: October 4, 2010Date of Patent: January 29, 2013Assignee: Dell Products, LPInventors: Hsien Tsung Lin, Jih Hsin Pan
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Patent number: 8200852Abstract: Methods and systems are described for utilizing multi-mode dongles with peripheral devices. The multi-mode dongles are configured to provide standard mode signals for a standard mode of operation and alternate mode signals for an alternate mode of operation, for example, where a host information handling system is unable to provide the alternate mode signals to the peripheral device. The multi-mode dongle receives mode control signals from a host information handling system and automatically switches from a standard mode of operation to an alternate mode of operation, where the alternate mode signals are provided to the peripheral device, based upon the mode control signals. In one embodiment, the multi-mode dongle can be configured for a universal serial bus (USB) port, and the alternate mode signals can be associated with charging a consumer electronics (CE) device.Type: GrantFiled: October 9, 2009Date of Patent: June 12, 2012Assignee: Dell Products, L.P.Inventors: Chin-Jui Liu, Bo Hom, Hsien-Tsung Lin
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Publication number: 20120081812Abstract: An information handling system includes a free fall sensing system having an amplifier and sampling circuit, a sampling data analyzer, a sampling clock duration controller, and a sampling clock generator. The amplifier and sampling circuit is configured to sample data signals from the free fall sensor based on an initial sampling signal and based on a variable sampling signal. The sampling data analyzer is configured to compare a magnitude of sampled data point to a predetermined magnitude, to output an alert signal when the magnitude of the sampled data point is below the predetermined magnitude. The sampling clock duration controller is configured to vary a duration and a frequency of a sampling signal control in response to the alert signal. The sampling clock generator is configured to send a variable sampling signal to the amplifier and sampling circuit in response to the variation of the duration and the frequency of the sampling signal control.Type: ApplicationFiled: October 4, 2010Publication date: April 5, 2012Applicant: DELL PRODUCTS, LPInventors: Hsien Tsung Lin, Jih Hsin Pan
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Patent number: 8080864Abstract: For improving efficiency of a power device having an exposed surface capable of radiating energy, a shielding layer is disposed in between the exposed surface and a conductive layer. The shielding layer causes at least a portion of the energy to be directed back into the power device, thereby substantially preventing the energy from inducing eddy currents in the conductive layer. The conductive layer is fabricated from a metal foil for compliance with electromagnetic energy leakage regulations.Type: GrantFiled: December 15, 2008Date of Patent: December 20, 2011Assignee: Dell Products L.P.Inventors: Wen-Hung Huang, Ming-Chu Kuo, Hsien Tsung Lin
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Publication number: 20110225441Abstract: A method for managing an alternating current adaptor system is disclosed. A direct current voltage is received at a high impedance power delivery network from a primary side of an alternating current adaptor system. An isolated voltage is output from the high impedance power delivery network to components of a secondary side of the alternating current adaptor system. A transition in a power state identification of an information handling system associated with the alternating current adaptor system is detected. An output voltage level of the alternating current adaptor system is alternated in response to the transition in the power state identification of the information handling system.Type: ApplicationFiled: March 12, 2010Publication date: September 15, 2011Applicant: DELL PRODUCTS, LPInventors: Yung Fa Chueh, Chih-Chieh Yin, Chin-Jui Liu, Hsien Tsung Lin
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Patent number: 8018309Abstract: For improving efficiency of a power device having an exposed surface capable of radiating energy, a shielding layer is disposed in between the exposed surface and a conductive layer. The shielding layer causes at least a portion of the energy to be directed back into the power device, thereby substantially preventing the energy from inducing eddy currents in the conductive layer. The conductive layer is fabricated from a metal foil for compliance with electromagnetic energy leakage regulations.Type: GrantFiled: October 23, 2008Date of Patent: September 13, 2011Assignee: Dell Products L.P.Inventors: Wen-Hung Huang, Ming-Chu Kuo, Hsien Tsung Lin
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Publication number: 20110179291Abstract: A power adaptor detection system includes a power adaptor device configured to receive electrical power at a first voltage and to convert the electrical power to a second voltage. The second voltage has a lower value than the first voltage. An identification generating circuit is coupled to the power adaptor device. The identification generating circuit is configured to convert a portion of the electrical power to a substantially constant value electrical current. An identification detection circuit is configured to detect the second voltage. Detecting the second voltage causes the identification circuit to determine the value of a pulse of the electrical current, wherein the value of the electrical current is an identification attribute of the power adaptor device.Type: ApplicationFiled: January 20, 2010Publication date: July 21, 2011Applicant: DELL PRODUCTS L.P.Inventors: So-Yu Weng, Hsien Tsung Lin
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Publication number: 20110161699Abstract: A method for reducing current leakage in a battery in communication with an information handling system (IHS) is disclosed herein. The method includes providing a battery management unit (BMU) in the battery, the BMU in communication with an embedded controller, wherein the BMU comprises a detector pin. The method further includes placing the BMU in a standby mode to disable power from the battery to the IHS while the battery is coupled to the IHS, and configuring the BMU to exit the standby mode, if an external power supply is coupled to the IHS, to enable battery power from the battery to the IHS. Also disclosed is an information handling system (IHS) which includes an embedded controller operable to initiate a power-on sequence in the IHS, and a battery having a battery management unit (BMU), wherein the BMU is initially placed in a standby mode to disable battery power to the IHS, the BMU in communication with the embedded controller.Type: ApplicationFiled: December 25, 2009Publication date: June 30, 2011Applicant: DELL PRODUCTS L.P.Inventors: Hsien Tsung Lin, Chih-Chieh Yin, Chin-Jui Liu
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Publication number: 20110087805Abstract: Methods and systems are described for utilizing multi-mode dongles with peripheral devices. The multi-mode dongles are configured to provide standard mode signals for a standard mode of operation and alternate mode signals for an alternate mode of operation, for example, where a host information handling system is unable to provide the alternate mode signals to the peripheral device. The multi-mode dongle receives mode control signals from a host information handling system and automatically switches from a standard mode of operation to an alternate mode of operation, where the alternate mode signals are provided to the peripheral device, based upon the mode control signals. In one embodiment, the multi-mode dongle can be configured for a universal serial bus (USB) port, and the alternate mode signals can be associated with charging a consumer electronics (CE) device.Type: ApplicationFiled: October 9, 2009Publication date: April 14, 2011Inventors: Chin-Jui Liu, Bo Hom, Hsien-Tsung Lin