Patents by Inventor Chia-Liang Lin
Chia-Liang 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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Patent number: 11757138Abstract: In one or more embodiments, one or more systems, one or more methods, and/or one or more processes may determine multiple voltage values associated with a rechargeable battery over a period of time; store the multiple voltage values with respect to multiple clock values over the period of time; determine a voltage drop rate from the multiple voltage values and the multiple clock values; determine a threshold voltage value associated with a predicted energy capacity of the rechargeable battery for a mobile information handling system (IHS) to perform a power state transition; determine a voltage value associated with the rechargeable battery; determine that the voltage value has reached the threshold voltage value; provide a notification to an operating system executed by the mobile IHS; store data from a volatile memory medium to a non-volatile memory medium; and transition the mobile IHS from an operational state to a power conservation state.Type: GrantFiled: April 19, 2021Date of Patent: September 12, 2023Assignee: Dell Products L.P.Inventors: Adolfo Sandor Montero, Pei Mng Lin, Chia Liang Lin, Shao Szu Ho, Jui-Chin Fang
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Patent number: 11736066Abstract: An oscillation circuit including an amplifier, a feedback resistor and a first switch circuit is provided. The amplifier inverts and amplifies an oscillation signal received from an input terminal thereof to provide an output oscillation signal at an output terminal thereof. The feedback resistor is coupled between the input terminal and the output terminal, and coupled with the first switch circuit in parallel. The first switch circuit conducts the input terminal to the output terminal in one of the following situations: (1) an input voltage of the oscillation signal is higher than an output voltage of the output oscillation signal by at least a first threshold value; and (2) the output voltage is higher than the input voltage by at least a second threshold value. The first switch circuit has a first on-state resistance smaller than a resistance of the feedback resistor.Type: GrantFiled: December 22, 2021Date of Patent: August 22, 2023Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventors: Ping-Yuan Deng, Chia-Liang Lin, Ka-Un Chan
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Publication number: 20230198466Abstract: An oscillation circuit including an amplifier, a feedback resistor and a first switch circuit is provided. The amplifier inverts and amplifies an oscillation signal received from an input terminal thereof to provide an output oscillation signal at an output terminal thereof. The feedback resistor is coupled between the input terminal and the output terminal, and coupled with the first switch circuit in parallel. The first switch circuit conducts the input terminal to the output terminal in one of the following situations: (1) an input voltage of the oscillation signal is higher than an output voltage of the output oscillation signal by at least a first threshold value; and (2) the output voltage is higher than the input voltage by at least a second threshold value. The first switch circuit has a first on-state resistance smaller than a resistance of the feedback resistor.Type: ApplicationFiled: December 22, 2021Publication date: June 22, 2023Inventors: Ping-Yuan DENG, Chia-Liang LIN, Ka-Un CHAN
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Publication number: 20230029463Abstract: A connector in an information handling system includes a battery connector, a battery receptacle, and a signal pin structure contact. The battery connector includes a first set of power pins and a first set of signal pins. The battery receptacle includes a second set of power pins and a second set of signal pins. The first and second sets of power pins are coupled together when the battery connector is inserted within the battery receptacle. The signal pin structure contact transitions between an open position and a closed position. The signal pin structure contact couples the first and second sets of signal pins when the signal pin structure contact is in the closed position. A power down signal is provided to components of the information handling system when the signal pin structure contact is in the open position.Type: ApplicationFiled: July 27, 2021Publication date: February 2, 2023Inventors: Chia-Fa Chang, Chia-Liang Lin, Shao-Szu Ho, Chien-Hao Chiu, Hui-Huan Chien
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Publication number: 20220336869Abstract: In one or more embodiments, one or more systems, one or more methods, and/or one or more processes may determine multiple voltage values associated with a rechargeable battery over a period of time; store the multiple voltage values with respect to multiple clock values over the period of time; determine a voltage drop rate from the multiple voltage values and the multiple clock values; determine a threshold voltage value associated with a predicted energy capacity of the rechargeable battery for a mobile information handling system (IHS) to perform a power state transition; determine a voltage value associated with the rechargeable battery; determine that the voltage value has reached the threshold voltage value; provide a notification to an operating system executed by the mobile IHS; store data from a volatile memory medium to a non-volatile memory medium; and transition the mobile IHS from an operational state to a power conservation state.Type: ApplicationFiled: April 19, 2021Publication date: October 20, 2022Inventors: Adolfo Sandor Montero, Pei Ying Lin, Chia Liang Lin, Shao Szu Ho, Jui-Chin Fang
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Patent number: 11467644Abstract: An information handling system may include a processor; a battery to supply power to the information handling system, the battery comprising a voltage regulator to power a battery management unit (BMU) on the battery and set a system present pin of the BMU to a high voltage; the BMU to: detect a voltage indicator indicating a change in voltage state at a system present pin of the BMU that is externally connectable to a ground or voltage source at the information handling system, the voltage indicator indicative of an electrical coupling of the battery to the information handling system while the information handling system is in an off state; and register the voltage indicator within a battery register of the BMU; and a microcontroller, upon powering on of the information handling system, to read the voltage indicator at the battery register and determine that the battery has been coupled to the information handling system.Type: GrantFiled: May 1, 2020Date of Patent: October 11, 2022Assignee: Dell Products, LPInventors: Geroncio O. Tan, Chia-Liang Lin, Jui Chin Fang, Chia-Fa Chang, Timothy C. Shaw
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Patent number: 11416055Abstract: Systems and methods for compensating battery health readings at low temperatures are described. In some embodiments, an Information Handling System (IHS) may include: a processor and a memory coupled to the processor, the memory having program instructions stored thereon that, upon execution by the processor, cause the IHS to: calculate a state-of-health (SOH) of a battery, and compensate the SOH, at least in part, by taking into account at least one temperature measured during a charge cycle.Type: GrantFiled: June 11, 2020Date of Patent: August 16, 2022Assignee: Dell Products, L.P.Inventors: Adolfo S. Montero, Shao-Szu Ho, Jui Chin Fang, Chia-Liang Lin
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Publication number: 20210389814Abstract: Systems and methods for compensating battery health readings at low temperatures are described. In some embodiments, an Information Handling System (IHS) may include: a processor and a memory coupled to the processor, the memory having program instructions stored thereon that, upon execution by the processor, cause the IHS to: calculate a state-of-health (SOH) of a battery, and compensate the SOH, at least in part, by taking into account at least one temperature measured during a charge cycle.Type: ApplicationFiled: June 11, 2020Publication date: December 16, 2021Applicant: Dell Products, L.P.Inventors: Adolfo S. Montero, Shao-Szu Ho, Jui Chin Fang, Chia-Liang Lin
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Publication number: 20210341983Abstract: An information handling system may include a processor; a battery to supply power to the information handling system, the battery comprising a voltage regulator to power a battery management unit (BMU) on the battery and set a system present pin of the BMU to a high voltage; the BMU to: detect a voltage indicator indicating a change in voltage state at a system present pin of the BMU that is externally connectable to a ground or voltage source at the information handling system, the voltage indicator indicative of an electrical coupling of the battery to the information handling system while the information handling system is in an off state; and register the voltage indicator within a battery register of the BMU; and a microcontroller, upon powering on of the information handling system, to read the voltage indicator at the battery register and determine that the battery has been coupled to the information handling system.Type: ApplicationFiled: May 1, 2020Publication date: November 4, 2021Applicant: Dell Products, LPInventors: Geroncio O. Tan, Chia-Liang Lin, Jui Chin Fang, Chia-Fa Chang, Timothy C. Shaw
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Patent number: 11099621Abstract: An information handling system real time clock (RTC)/CMOS circuit is powered from a battery that powers the information handling system. The battery power is supplied through a power management circuit that manages power constraints to the real time clock and that protects the battery from exceeding current and voltage thresholds. A protection integrated circuit selectively cuts off power supply from a power module to the RTC/CMOS circuit if predetermined conditions are detected. The protection circuit may also cutoff all power from battery with a permanent failure option or may itself directly supply power to the real time clock/CMOS circuit.Type: GrantFiled: July 16, 2019Date of Patent: August 24, 2021Assignee: Dell Products L.P.Inventors: Szu Shao Ho, Jui-Chin Fang, Chia Fa Chang, Chien-Hao Chiu, Chia Liang Lin
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Patent number: 11095135Abstract: Dynamic battery discharge at an information handling system during battery charge, such as to support increased power use associated with processor turbo mode, is managed by setting a reduced maximum charge current dynamically during constant voltage charging so that battery voltage droop from discharge does not result in command of an excessive charge current after the discharge.Type: GrantFiled: October 25, 2018Date of Patent: August 17, 2021Assignee: Dell Products L.P.Inventors: Richard Christopher Thompson, Yan Ning, Chia-Liang Lin
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Patent number: 11088407Abstract: In one or more embodiments, one or more systems, methods, and/or processes may determine that a timeout value has been reached; for each battery cell of multiple of battery cells: may determine if a temperature value associated with the battery cell meets or exceeds a threshold temperature value; if the temperature value associated with the battery cell does not meet or exceed the threshold temperature value, may permit the battery cell to be charged and discharged; if the temperature value associated with the battery cell meets or exceeds the threshold temperature value: may increment a temporary fail count associated with the battery cell; and may prevent at least one of charging and discharging the battery cell; may determine if temporary fail count exceeds a temporary fail count threshold; and if the temporary fail count does not exceed the temporary fail count threshold, may permit charging and discharging the battery cell.Type: GrantFiled: May 24, 2019Date of Patent: August 10, 2021Assignee: Dell Products L.P.Inventors: Jui-Chin Fang, Shao Szu Ho, Chia Fa Chang, Chien Hao Chiu, Chia Liang Lin
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Publication number: 20210018970Abstract: An information handling system real time clock (RTC)/CMOS circuit is powered from a battery that powers the information handling system. The battery power is supplied through a power management circuit that manages power constraints to the real time clock and that protects the battery from exceeding current and voltage thresholds. A protection integrated circuit selectively cuts off power supply from a power module to the RTC/CMOS circuit if predetermined conditions are detected. The protection circuit may also cutoff all power from battery with a permanent failure option or may itself directly supply power to the real time clock/CMOS circuit.Type: ApplicationFiled: July 16, 2019Publication date: January 21, 2021Applicant: Dell Products L.P.Inventors: Szu Shao Ho, Jui-Chin Fang, Chia Fa Chang, Chien-Hao Chiu, Chia Liang Lin
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Publication number: 20200373632Abstract: In one or more embodiments, one or more systems, methods, and/or processes may determine that a timeout value has been reached; for each battery cell of multiple of battery cells: may determine if a temperature value associated with the battery cell meets or exceeds a threshold temperature value; if the temperature value associated with the battery cell does not meet or exceed the threshold temperature value, may permit the battery cell to be charged and discharged; if the temperature value associated with the battery cell meets or exceeds the threshold temperature value: may increment a temporary fail count associated with the battery cell; and may prevent at least one of charging and discharging the battery cell; may determine if temporary fail count exceeds a temporary fail count threshold; and if the temporary fail count does not exceed the temporary fail count threshold, may permit charging and discharging the battery cell.Type: ApplicationFiled: May 24, 2019Publication date: November 26, 2020Inventors: Jui-Chin Fang, Shao Szu Ho, Chia Fa Chang, Chien Hao Chiu, Chia Liang Lin
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Patent number: 10819322Abstract: An apparatus is provided that includes a frequency doubler circuit and a duty cycle adjusting circuit. The frequency doubler circuit includes a multiplexer, a variable delay circuit and a divide-by-2 circuit. The multiplexer selects one of a first and a second clock signals having opposite phases according to a selection signal to generate a frequency doubled clock signal. The variable delay circuit delays the frequency doubled clock signal. The divide-by-2 circuit divides a frequency of the frequency doubled clock signal to generate the selection signal. The duty cycle adjusting circuit includes an average voltage generation circuit and a comparison circuit. The average voltage generation circuit generates an average voltage value of the frequency doubled clock signal. The comparison circuit generates a control signal according to a comparison result of the average voltage value and a reference voltage to control the duty cycle of the frequency doubled clock signal.Type: GrantFiled: January 16, 2020Date of Patent: October 27, 2020Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventors: An-Ming Lee, Chia-Liang Lin, Yo-Hao Tu, Yu-Hsiang Chen
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Patent number: 10794958Abstract: In one or more embodiments, an information handling system may include an embedded controller, communicatively coupled to a battery system that is configured to power the information handling system. The embedded controller may be configured to: receive a cycle count from the battery system; determine that the cycle count is above a threshold; query the battery system for an expected margin of error, in response to determining that the cycle count is above the threshold; receive the expected margin of error from the battery system; determine that the expected margin of error is within a range; and in response to determining that the expected margin of error is within the range, compute a condition metric of the battery system based on a prediction of a capacity of the battery system and a design capacity of the battery system and store the condition metric of the battery system.Type: GrantFiled: July 3, 2017Date of Patent: October 6, 2020Assignee: Dell Products L.P.Inventors: Chia-Fa Chang, Chia Liang Lin, Jui Chin Fang, Shao Szu Ho, No Hua Chuang
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Publication number: 20200235725Abstract: An apparatus is provided that includes a frequency doubler circuit and a duty cycle adjusting circuit. The frequency doubler circuit includes a multiplexer, a variable delay circuit and a divide-by-2 circuit. The multiplexer selects one of a first and a second clock signals having opposite phases according to a selection signal to generate a frequency doubled clock signal. The variable delay circuit delays the frequency doubled clock signal. The divide-by-2 circuit divides a frequency of the frequency doubled clock signal to generate the selection signal. The duty cycle adjusting circuit includes an average voltage generation circuit and a comparison circuit. The average voltage generation circuit generates an average voltage value of the frequency doubled clock signal. The comparison circuit generates a control signal according to a comparison result of the average voltage value and a reference voltage to control the duty cycle of the frequency doubled clock signal.Type: ApplicationFiled: January 16, 2020Publication date: July 23, 2020Inventors: An-Ming LEE, Chia-Liang LIN, Yo-Hao TU, Yu-Hsiang CHEN
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Publication number: 20200136401Abstract: Dynamic battery discharge at an information handling system during battery charge, such as to support increased power use associated with processor turbo mode, is managed by setting a reduced maximum charge current dynamically during constant voltage charging so that battery voltage droop from discharge does not result in command of an excessive charge current after the discharge.Type: ApplicationFiled: October 25, 2018Publication date: April 30, 2020Applicant: Dell Products L.P.Inventors: Richard Christopher Thompson, Yan Ning, Chia-Liang Lin
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Patent number: 10454245Abstract: A laser diode control circuit includes: a LD driver circuit for driving a laser diode; a direct current component remover circuit for generating a feedback signal based on a detected signal; a first conversion and filter circuit for generating a first filtered signal based on the feedback signal; a first rectifier for rectifying the first filtered signal to generate a first rectified signal; a reference signal generator for generating a reference signal; a second conversion and filter circuit for generating a second filtered signal based on the reference signal; a second rectifier for rectifying the second filtered signal to generate a second rectified signal; a rectified signals processing circuit for generating a processed signal based on the first and second rectified signals; and a comparator for generating a comparison signal based on the processed signal.Type: GrantFiled: September 7, 2018Date of Patent: October 22, 2019Assignee: REALTEK SEMICONDUCTOR CORP.Inventors: Kuan-Chang Tsung, Jian-Ru Lin, Chia-Liang Lin
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Publication number: 20190004119Abstract: In one or more embodiments, an information handling system may include an embedded controller, communicatively coupled to a battery system that is configured to power the information handling system. The embedded controller may be configured to: receive a cycle count from the battery system; determine that the cycle count is above a threshold; query the battery system for an expected margin of error, in response to determining that the cycle count is above the threshold; receive the expected margin of error from the battery system; determine that the expected margin of error is within a range; and in response to determining that the expected margin of error is within the range, compute a condition metric of the battery system based on a prediction of a capacity of the battery system and a design capacity of the battery system and store the condition metric of the battery system.Type: ApplicationFiled: July 3, 2017Publication date: January 3, 2019Inventors: Chia-Fa Chang, Chia Liang Lin, Jui Chin Fang, Shao Szu Ho, No Hua Chuang