Patents by Inventor Yifan YangGong
Yifan YangGong 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: 11899513Abstract: A power management controller is disclosed. Broadly speaking, the controller may, in response to receiving a timing signal, monitor a temperature of an integrated circuit including multiple processor clusters. The controller may generate a comparison of the temperature and a threshold value, and in response to a determination that the comparison indicates that the temperature is less than the threshold value, transition a particular processor cluster to a new power state.Type: GrantFiled: January 9, 2023Date of Patent: February 13, 2024Assignee: Oracle International CorporationInventors: Yifan YangGong, Sebastian Turullols
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Patent number: 11762444Abstract: A method for determining power dissipation within a computer system is disclosed. A circuit block may receive a regulated voltage level on a power supply signal generated by a voltage regulator circuit. A power control circuit may measure a current drawn by the circuit block, and determine a real-time voltage level for the power supply signal using the current and based on a slope value and a zero-load voltage level. Additionally, power control circuit may determine a power dissipation for the circuit block using the current and the real-time voltage level, and adjust an operation parameter of the circuit block based on the power dissipation.Type: GrantFiled: July 29, 2021Date of Patent: September 19, 2023Assignee: Oracle International CorporationInventors: Lin Zhang, Yifan YangGong, Sebastian Turullols
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Patent number: 11550376Abstract: A power management controller is disclosed. Broadly speaking, the controller may, in response to receiving a timing signal, monitor a temperature of an integrated circuit including multiple processor clusters. The controller may generate a comparison of the temperature and a threshold value, and in response to a determination that the comparison indicates that the temperature is less than the threshold value, transition a particular processor cluster to a new power state.Type: GrantFiled: April 26, 2021Date of Patent: January 10, 2023Assignee: Oracle International CorporationInventors: Yifan YangGong, Sebastian Turullols
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Publication number: 20210357014Abstract: A method for determining power dissipation within a computer system is disclosed. A circuit block may receive a regulated voltage level on a power supply signal generated by a voltage regulator circuit. A power control circuit may measure a current drawn by the circuit block, and determine a real-time voltage level for the power supply signal using the current and based on a slope value and a zero-load voltage level. Additionally, power control circuit may determine a power dissipation for the circuit block using the current and the real-time voltage level, and adjust an operation parameter of the circuit block based on the power dissipation.Type: ApplicationFiled: July 29, 2021Publication date: November 18, 2021Inventors: Lin Zhang, Yifan YangGong, Sebastian Turullols
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Publication number: 20210247824Abstract: A power management controller is disclosed. Broadly speaking, the controller may, in response to receiving a timing signal, monitor a temperature of an integrated circuit including multiple processor clusters. The controller may generate a comparison of the temperature and a threshold value, and in response to a determination that the comparison indicates that the temperature is less than the threshold value, transition a particular processor cluster to a new power state.Type: ApplicationFiled: April 26, 2021Publication date: August 12, 2021Inventors: Yifan YangGong, Sebastian Turullols
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Patent number: 11086377Abstract: A method for determining power dissipation within a computer system is disclosed. A circuit block may receive a regulated voltage level on a power supply signal generated by a voltage regulator circuit. A power control circuit may measure a current drawn by the circuit block, and determine a real-time voltage level for the power supply signal using the current and based on a slope value and a zero-load voltage level. Additionally, power control circuit may determine a power dissipation for the circuit block using the current and the real-time voltage level, and adjust an operation parameter of the circuit block based on the power dissipation.Type: GrantFiled: April 29, 2018Date of Patent: August 10, 2021Assignee: Oracle International CorporationInventors: Lin Zhang, Yifan YangGong, Sebastian Turullols
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Patent number: 10990145Abstract: A power management controller is disclosed. Broadly speaking, the controller may, in response to receiving a timing signal, monitor a temperature of an integrated circuit including multiple processor clusters. The controller may generate a comparison of the temperature and a threshold value, and in response to a determination that the comparison indicates that the temperature is less than the threshold value, transition a particular processor cluster to a new power state.Type: GrantFiled: July 29, 2019Date of Patent: April 27, 2021Assignee: Oracle International CorporationInventors: Yifan YangGong, Sebastian Turullols
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Patent number: 10884472Abstract: A method for adjusting operation parameters of a computer system based on power consumption of the computer system is disclosed. During a power state transition of the computer system, a voltage level of a power supply signal may be sampled at a plurality of time points to generate a multiple voltage level samples. A voltage level of a selected one of the multiple voltage level samples may be adjusted using a particular coefficient of multiple coefficients to generate an updated voltage level sample. A power consumption of the computer system may be determined using the updated voltage level sample, and based on the power consumption, at least one operation parameter of the computer system may be adjusted.Type: GrantFiled: April 27, 2018Date of Patent: January 5, 2021Assignee: Oracle International CorporationInventors: Yufei Qian, Yifan YangGong, Sebastian Turullols
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Patent number: 10768057Abstract: A method and apparatus for calibrating a temperature sensor is disclosed. In one embodiment, a method comprises generating first and second digital values based respectively on first and second voltages applied to a portion of a temperature sensor circuit. An arithmetic circuit may derive the value of the second voltage based on the first and second digital values. The method further comprises determining an initial value of a constant based on values of the first and second voltages, and determining a final value of the constant based on the initial voltage and at least one voltage offset. The constant may then be used in determining temperature readings for the temperature sensor.Type: GrantFiled: September 5, 2017Date of Patent: September 8, 2020Assignee: Oracle International CorporationInventors: Sebastian Turullols, Ha Pham, Changku Hwang, Yifan YangGong, Qing Xie
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Patent number: 10656700Abstract: A power management controller is disclosed. Broadly speaking, the controller may, in response to detecting a timing signal, determine a total power consumption for a plurality of processor clusters, each of which includes a plurality of processor cores. The controller may determine a performance metric using the total power consumption and compare the performance metric to a limit. Based on a result of the comparison, the controller may select a new power state for at least one of the processor clusters.Type: GrantFiled: July 10, 2017Date of Patent: May 19, 2020Assignee: Oracle International CorporationInventors: Yifan YangGong, Sebastian Turullols
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Publication number: 20190354150Abstract: A power management controller is disclosed. Broadly speaking, the controller may, in response to receiving a timing signal, monitor a temperature of an integrated circuit including multiple processor clusters. The controller may generate a comparison of the temperature and a threshold value, and in response to a determination that the comparison indicates that the temperature is less than the threshold value, transition a particular processor cluster to a new power state.Type: ApplicationFiled: July 29, 2019Publication date: November 21, 2019Inventors: Yifan YangGong, Sebastian Turullols
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Publication number: 20190332153Abstract: A method for determining power dissipation within a computer system is disclosed. A circuit block may receive a regulated voltage level on a power supply signal generated by a voltage regulator circuit. A power control circuit may measure a current drawn by the circuit block, and determine a real-time voltage level for the power supply signal using the current and based on a slope value and a zero-load voltage level. Additionally, power control circuit may determine a power dissipation for the circuit block using the current and the real-time voltage level, and adjust an operation parameter of the circuit block based on the power dissipation.Type: ApplicationFiled: April 29, 2018Publication date: October 31, 2019Inventors: Lin Zhang, Yifan YangGong, Sebastian Turullols
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Publication number: 20190332156Abstract: A method for adjusting operation parameters of a computer system based on power consumption of the computer system is disclosed. During a power state transition of the computer system, a voltage level of a power supply signal may be sampled at a plurality of time points to generate a multiple voltage level samples. A voltage level of a selected one of the multiple voltage level samples may be adjusted using a particular coefficient of multiple coefficients to generate an updated voltage level sample. A power consumption of the computer system may be determined using the updated voltage level sample, and based on the power consumption, at least one operation parameter of the computer system may be adjusted.Type: ApplicationFiled: April 27, 2018Publication date: October 31, 2019Inventors: Yufei Qian, Yifan YangGong, Sebastian Turullols
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Patent number: 10365698Abstract: A power management controller is disclosed. Broadly speaking, the controller may, in response to receiving a timing signal, monitor a temperature of an integrated circuit including multiple processor clusters. The controller may generate a comparison of the temperature and a threshold value, and in response to a determination that the comparison indicates that the temperature is less than the threshold value, transition a particular processor cluster to a new power state.Type: GrantFiled: July 27, 2017Date of Patent: July 30, 2019Assignee: Oracle International CorporationInventors: Yifan YangGong, Sebastian Turullols
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Patent number: 10296063Abstract: An apparatus is disclosed, including a monitoring circuit, a translation circuit, a first filter circuit, a second filter circuit, and an interface. The monitoring circuit may be configured to receive a plurality of code values indicative of a voltage level of a power supply signal. The translation circuit may be configured to translate a particular code value to a corresponding voltage value of a plurality of voltage values. The first filter circuit may be configured to filter one or more of the plurality of voltage values to generate a plurality of filtered voltage values. The second filter circuit may be configured to generate a plurality of current values using one or more of the plurality of filtered voltage values and based on an impulse response of the power supply signal. The interface may be configured to send one or more of the plurality of current values to a functional circuit.Type: GrantFiled: March 30, 2017Date of Patent: May 21, 2019Assignee: Oracle International CorporationInventors: Yifan YangGong, Sebastian Turullols, Vijay Srinivasan
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Publication number: 20190033931Abstract: A power management controller is disclosed. Broadly speaking, the controller may, in response to receiving a timing signal, monitor a temperature of an integrated circuit including multiple processor clusters. The controller may generate a comparison of the temperature and a threshold value, and in response to a determination that the comparison indicates that the temperature is less than the threshold value, transition a particular processor cluster to a new power state.Type: ApplicationFiled: July 27, 2017Publication date: January 31, 2019Inventors: Yifan YangGong, Sebastian Turullols
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Publication number: 20190011971Abstract: A power management controller is disclosed. Broadly speaking, the controller may, in response to detecting a timing signal, determine a total power consumption for a plurality of processor clusters, each of which includes a plurality of processor cores. The controller may determine a performance metric using the total power consumption and compare the performance metric to a limit. Based on a result of the comparison, the controller may select a new power state for at least one of the processor clusters.Type: ApplicationFiled: July 10, 2017Publication date: January 10, 2019Inventors: Yifan YangGong, Sebastian Turullols
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Publication number: 20180284867Abstract: An apparatus is disclosed, including a monitoring circuit, a translation circuit, a first filter circuit, a second filter circuit, and an interface. The monitoring circuit may be configured to receive a plurality of code values indicative of a voltage level of a power supply signal. The translation circuit may be configured to translate a particular code value to a corresponding voltage value of a plurality of voltage values. The first filter circuit may be configured to filter one or more of the plurality of voltage values to generate a plurality of filtered voltage values. The second filter circuit may be configured to generate a plurality of current values using one or more of the plurality of filtered voltage values and based on an impulse response of the power supply signal. The interface may be configured to send one or more of the plurality of current values to a functional circuit.Type: ApplicationFiled: March 30, 2017Publication date: October 4, 2018Inventors: Yifan YangGong, Sebastian Turullols, Vijay Srinivasan
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Publication number: 20180283964Abstract: A method and apparatus for calibrating a temperature sensor is disclosed. In one embodiment, a method comprises generating first and second digital values based respectively on first and second voltages applied to a portion of a temperature sensor circuit. An arithmetic circuit may derive the value of the second voltage based on the first and second digital values. The method further comprises determining an initial value of a constant based on values of the first and second voltages, and determining a final value of the constant based on the initial voltage and at least one voltage offset. The constant may then be used in determining temperature readings for the temperature sensor.Type: ApplicationFiled: September 5, 2017Publication date: October 4, 2018Inventors: Sebastian Turullols, Ha Pham, Changku Hwang, Yifan YangGong, Qing Xie
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Patent number: 9954540Abstract: A system that generates a click signal includes a first digitally controlled oscillator (DCO) having a first fundamental frequency, and a second DCO having a second fundamental frequency. The system also includes a Muller C-element, which combines outputs of the first and second DCOs to produce the clock signal, which feeds back into the first and second DCOs. During a calibration operation, while the second DCO is set to a frequency larger than the target frequency, the system adjusts the first DCO with reference to a first feedback loop, which includes the first DCO, so that the clock signal matches the target frequency, and while the first DCO is set to the adjusted first fundamental frequency plus a frequency offset, the system adjusts the second DCO with reference to a second feedback loop, which includes the second DCO, so that the clock signal matches the target frequency.Type: GrantFiled: March 17, 2017Date of Patent: April 24, 2018Assignee: Oracle International CorporationInventors: Yifan YangGong, Sebastian Turullols, Changku Hwang, Nicolas M. Huynh, Daniel S. Woo