Patents by Inventor David Kung
David Kung 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: 20230240340Abstract: A method and apparatus is disclosed relating to food preparation in commercial kitchens and food processing plants. The disclosed extreme vacuum cooling (EVC) technology and apparatus can work in ultra low pressure conditions with adaptive pressure control to avoid potential liquid splash inside the vacuum chamber caused by un-controlled low pressure conditions. Clean air is added into the vacuum chamber to allow the chamber pressure to track a setpoint trajectory that may have ramp up periods in order to avoid liquid splash events. The apparatus enables the user to cool various kinds of foods quickly, save energy, and meet food safety regulations.Type: ApplicationFiled: January 27, 2023Publication date: August 3, 2023Inventors: George Shu-Xing Cheng, David Kung-Tin Shao, John Field, Richard Gillespie
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Patent number: 11638436Abstract: A method and apparatus is disclosed relating to food preparation in commercial kitchens. The disclosed extreme vacuum cooling (EVC) technology and apparatus can work in ultra low pressure conditions with adaptive pressure control to avoid potential liquid splash inside the vacuum chamber caused by un-controlled low pressure conditions. Clean air or inert gas is added into the vacuum chamber so that the chamber pressure can track a setpoint trajectory that may have ramp up periods in order to avoid liquid splash events. The apparatus allows the user to automatically cool various kinds of foods based on a recipe with minimal human interaction and meet food safety regulations.Type: GrantFiled: September 8, 2021Date of Patent: May 2, 2023Assignee: Culinary Sciences, Inc.Inventors: George Shu-Xing Cheng, David Kung-Tin Shao
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Publication number: 20230076811Abstract: A method and apparatus is disclosed relating to food processing and preparation in commercial kitchens. The disclosed extreme vacuum cooling (EVC) technology and apparatus can work in ultra low pressure conditions with adaptive pressure control to avoid potential liquid splash inside the vacuum chamber caused by un-controlled low pressure conditions. Clean air or inert gas is added into the vacuum chamber so that the chamber pressure can track a setpoint trajectory that may have ramp up periods in order to avoid liquid splash events. The inventive apparatus allows the user to automatically cool various kinds of foods based on a recipe with minimal human interaction and meet food safety regulations. Different cooling recipes can be created based on the type and volume of the foods and a related vacuum pressure setpoint trajectory. High-volume food service kitchens can achieve less labor intensive, more time efficient, and higher throughput food preparation operations.Type: ApplicationFiled: September 8, 2021Publication date: March 9, 2023Inventors: George Shu-Xing Cheng, David Kung-Tin Shao
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Patent number: 11521067Abstract: Various embodiments are provided for decentralized distributed deep learning by one or more processors in a computing system. Asynchronous distributed training of one or more machine learning models may be performed by generating a list of neighbor nodes for each node in a plurality of nodes and creating a first thread for continuous communication according to a weight management operation and a second thread for continuous computation of a gradient for each node. One or more variables are shared between the first thread and the second thread.Type: GrantFiled: November 30, 2018Date of Patent: December 6, 2022Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Wei Zhang, Li Zhang, Ulrich Finkler, Minsik Cho, David Kung
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Patent number: 11093438Abstract: Embodiments for pipelining multi-directional reduction by one or more processors in a computing system. One or more reduce scatter operations and one or more all-gather operations may be assigned to each of a plurality of independent networks. The one or more reduce scatter operations and the one or more all-gather operations may be sequentially executed in each of the plurality of independent networks according to a serialized execution order and a defined time period.Type: GrantFiled: January 7, 2019Date of Patent: August 17, 2021Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Minsik Cho, Ulrich Finkler, David Kung
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Patent number: 11093521Abstract: Systems and methods for just-in-time data quality assessment of best records created during data migration are disclosed. A data steward includes tools for creating and editing a best record creation strategy that defines how records from multiple systems will be integrated into target systems. At design time, the data steward can generate best record creation and validation rules based on the best record creation strategy. The data steward can apply the best record creation and validation rules to a sample of matched records from multiple data sources to generate a sample set of best records. The efficacy of the best record creation rules can be evaluated by assessing the number of fields in the sample set that fail the validation rules. During review, the validation rules can be applied to edits to the best records received from a human reviewer to ensure compliance with the best record creation strategy.Type: GrantFiled: June 27, 2013Date of Patent: August 17, 2021Assignee: SAP SEInventors: Min He, Frank Le, Hiren Kotadia, Hemant Puranik, Abhiram Gujjewar, David Kung
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Publication number: 20200218689Abstract: Embodiments for pipelining multi-directional reduction by one or more processors in a computing system. One or more reduce scatter operations and one or more all-gather operations may be assigned to each of a plurality of independent networks. The one or more reduce scatter operations and the one or more all-gather operations may be sequentially executed in each of the plurality of independent networks according to a serialized execution order and a defined time period.Type: ApplicationFiled: January 7, 2019Publication date: July 9, 2020Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Minsik CHO, Ulrich FINKLER, David KUNG
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Publication number: 20200175370Abstract: Various embodiments are provided for decentralized distributed deep learning by one or more processors in a computing system. Asynchronous distributed training of one or more machine learning models may be performed by generating a list of neighbor nodes for each node in a plurality of nodes and creating a first thread for continuous communication according to a weight management operation and a second thread for continuous computation of a gradient for each node. One or more variables are shared between the first thread and the second thread.Type: ApplicationFiled: November 30, 2018Publication date: June 4, 2020Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Wei ZHANG, Li ZHANG, Ulrich FINKLER, Minsik CHO, David KUNG
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Patent number: 10608525Abstract: A circuit for use in a power converter includes a control circuit capable of detecting whether an AC voltage source is coupled to an input of the power converter, and whether the AC voltage source is uncoupled from the input within a first period of time. A control circuit is coupled to drive a switch in a first operating mode when the control circuit detects that the AC voltage source is coupled to the input, and drive the switch in a second operating mode when the control circuit detects that the AC voltage source is uncoupled from the input. The control circuit is capable of discharging a capacitance coupled between input terminals of the power converter to a SELV level through a discharge path and the switch within a second period of time. An RC time constant of the discharge path is less than or equal to one second.Type: GrantFiled: November 2, 2018Date of Patent: March 31, 2020Assignee: Power Integrations, Inc.Inventors: Balu Balakrishnan, David Kung, Raymond Kenneth Orr, David Michael Hugh Matthews
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Patent number: 10332010Abstract: A method and system are presented of automatically suggesting rules for data stored in a table, with the table comprising a plurality of columns. The table is profiled to identify a content type for each of one or more of the plurality of columns. A rule knowledge base is accessed to locate rules specified for identified content types. Then, one or more of the located rules specified for identified content types are presented as suggestions. Acceptance of one or more of the suggested rules is received from a user, and the received validations are stored in the rule knowledge base. The accepted rules are applied to data for quality detection and monitoring. Embodiments are also described where columns are suggested based on a given rule.Type: GrantFiled: February 19, 2013Date of Patent: June 25, 2019Assignee: Business Objects Software Ltd.Inventors: Nancy Yan, Min He, David Kung
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Publication number: 20190074762Abstract: A circuit for use in a power converter includes a control circuit capable of detecting whether an AC voltage source is coupled to an input of the power converter, and whether the AC voltage source is uncoupled from the input within a first period of time. A control circuit is coupled to drive a switch in a first operating mode when the control circuit detects that the AC voltage source is coupled to the input, and drive the switch in a second operating mode when the control circuit detects that the AC voltage source is uncoupled from the input. The control circuit is capable of discharging a capacitance coupled between input terminals of the power converter to a SELV level through a discharge path and the switch within a second period of time. An RC time constant of the discharge path is less than or equal to one second.Type: ApplicationFiled: November 2, 2018Publication date: March 7, 2019Inventors: Balu Balakrishnan, David Kung, Raymond Kenneth Orr, David Michael Hugh Matthews
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Patent number: 10224292Abstract: An integrated circuit package includes a portion of a lead frame disposed within an encapsulation. The lead frame includes a first conductor including a first conductive loop and a third conductive loop disposed substantially within the encapsulation. A second conductor formed in the lead frame is galvanically isolated from the first conductor and includes a second conductive loop disposed substantially within the encapsulation proximate to the first conductive loop to provide a communication link between the first and second conductors. The third conductive loop is wound in an opposite direction relative to the first conductive loop. A transmit circuit is disposed within the encapsulation and is coupled to the second conductor to provide a transmitter current. A receive circuit is disposed within the encapsulation and is coupled to the first conductor to receive a transmitter induced signal in response to the transmitter current.Type: GrantFiled: October 19, 2017Date of Patent: March 5, 2019Assignee: Power Integrations, Inc.Inventors: David Kung, David Michael Hugh Matthews, Balu Balakrishnan
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Patent number: 10153687Abstract: A power converter includes an energy transfer element and a circuit coupled to the input of the power converter. The circuit includes a switch and a control circuit capable of detecting whether an AC voltage source is coupled to the input, or uncoupled from the input within a first predetermined time. The control circuit is coupled to drive the switch in a first operating mode when the AC voltage source is coupled, drive the switch in a second operating mode when the AC voltage source is uncoupled, and is capable of discharging a capacitance coupled between input terminals of the power converter to a threshold voltage level through a discharge path and through the switch within a second predetermined time. An RC time constant of the discharge path is less than or equal to one second and the threshold voltage level is less than or equal to ten volts.Type: GrantFiled: June 30, 2017Date of Patent: December 11, 2018Assignee: Power Integrations, Inc.Inventors: Balu Balakrishnan, David Kung, Raymond Kenneth Orr, David Michael Hugh Matthews
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Patent number: 9985542Abstract: An integrated circuit (IC) for controlling the discharge of a capacitor coupled across first and second input terminals of a power converter circuit, wherein the first and second terminals for receiving an ac line voltage. The IC includes a switching element coupled across the first and second input terminals and a detector circuit. The detector circuit including first and second comparators that produce first and second output signals responsive to a zero-crossing event of the ac line voltage. The first and second output signals being used to generate a reset signal coupled to a timer circuit responsive to the zero-crossing event. When the reset signal is not received within a delay time period, the timer circuit outputs a discharge signal that turns the switching element on, thereby discharging the capacitor.Type: GrantFiled: September 24, 2016Date of Patent: May 29, 2018Assignee: Power Integrations, Inc.Inventors: Leif Lund, David Kung
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Patent number: 9929656Abstract: A power converter controller includes a primary controller and a secondary controller. The primary controller is coupled to receive one or more request signals from the secondary controller and transition a power switch from an OFF state to an ON state in response to the received request signals. The secondary controller is coupled to transmit the request signals to the primary controller and control the amount of time between the transmission of each of the request signals. The secondary controller includes a timing circuit that sets a minimum amount of time between the transmission of the request signals. The secondary controller also includes a secondary switch control circuit coupled to trigger the timing circuit in response to transmitting a request signal.Type: GrantFiled: September 24, 2015Date of Patent: March 27, 2018Assignee: Power Integrations, Inc.Inventors: David Michael Hugh Matthews, Balu Balakrishnan, David Kung
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Publication number: 20180040570Abstract: An integrated circuit package includes a portion of a lead frame disposed within an encapsulation. The lead frame includes a first conductor including a first conductive loop and a third conductive loop disposed substantially within the encapsulation. A second conductor formed in the lead frame is galvanically isolated from the first conductor and includes a second conductive loop disposed substantially within the encapsulation proximate to the first conductive loop to provide a communication link between the first and second conductors. The third conductive loop is wound in an opposite direction relative to the first conductive loop. A transmit circuit is disposed within the encapsulation and is coupled to the second conductor to provide a transmitter current. A receive circuit is disposed within the encapsulation and is coupled to the first conductor to receive a transmitter induced signal in response to the transmitter current.Type: ApplicationFiled: October 19, 2017Publication date: February 8, 2018Inventors: David Kung, David Michael Hugh Matthews, Balu Balakrishnan
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Patent number: 9831188Abstract: An integrated circuit package includes an encapsulation and a lead frame with a portion of the lead frame disposed within the encapsulation. The lead frame includes first and second conductive loops. A first voltage is induced between first and second ends of the first conductive loop in response to an external magnetic field that passes through the integrated circuit package. A second voltage is induced between third and fourth ends of the second conductive loop of the lead frame in response to the external magnetic field that passes through the integrated circuit package. The first conductive loop is coupled to the second conductive loop such that the first voltage between the first and second ends combined with the second voltage between the third and fourth ends substantially cancel.Type: GrantFiled: April 25, 2016Date of Patent: November 28, 2017Assignee: Power Integrations, Inc.Inventors: David Kung, David Michael Hugh Matthews, Balu Balakrishnan
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Publication number: 20170302156Abstract: A power converter includes an energy transfer element and a circuit coupled to the input of the power converter. The circuit includes a switch and a control circuit capable of detecting whether an AC voltage source is coupled to the input, or uncoupled from the input within a first predetermined time. The control circuit is coupled to drive the switch in a first operating mode when the AC voltage source is coupled, drive the switch in a second operating mode when the AC voltage source is uncoupled, and is capable of discharging a capacitance coupled between input terminals of the power converter to a threshold voltage level through a discharge path and through the switch within a second predetermined time. An RC time constant of the discharge path is less than or equal to one second and the threshold voltage level is less than or equal to ten volts.Type: ApplicationFiled: June 30, 2017Publication date: October 19, 2017Inventors: Balu Balakrishnan, David Kung, Raymond Kenneth Orr, David Michael Hugh Matthews
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Patent number: 9735665Abstract: A circuit for use in a power converter includes a control circuit coupled to detect whether an electrical energy source is coupled to an input of the power converter. A switch is coupled to the control circuit, and is coupled to transfer energy from the input of the power converter to an output of the power converter during a first operating mode. The control circuit is coupled to drive the switch in the first operating mode when the electrical energy source is coupled to the input of the power converter. The control circuit is coupled to drive the switch in a second operating mode when the electrical energy source is uncoupled from the input of the power converter to drive the switch to discharge a capacitance coupled between input terminals of the power converter to a threshold voltage in less than a maximum period of time.Type: GrantFiled: May 20, 2015Date of Patent: August 15, 2017Assignee: Power Integrations, Inc.Inventors: Balu Balakrishnan, David Kung, Raymond Kenneth Orr, David Michael Hugh Matthews
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Publication number: 20170012543Abstract: An integrated circuit (IC) for controlling the discharge of a capacitor coupled across first and second input terminals of a power converter circuit, wherein the first and second terminals for receiving an ac line voltage. The IC includes a switching element coupled across the first and second input terminals and a detector circuit. The detector circuit including first and second comparators that produce first and second output signals responsive to a zero-crossing event of the ac line voltage. The first and second output signals being used to generate a reset signal coupled to a timer circuit responsive to the zero-crossing event. When the reset signal is not received within a delay time period, the timer circuit outputs a discharge signal that turns the switching element on, thereby discharging the capacitor.Type: ApplicationFiled: September 24, 2016Publication date: January 12, 2017Inventors: Leif Lund, David Kung