Patents by Inventor Ivan Liu
Ivan Liu 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: 20240166052Abstract: A method for checking an insulation state of a battery or battery system comprising at least two batteries, comprising the following steps: measuring a voltage between a connection element of the battery and a ground over a predefined time; evaluating the measured voltage and determining whether a change in the measured voltage is present at time point that corresponds to a predefined temporal threshold value; and outputting a safety signal characterizing the insulation state on the basis of the established result.Type: ApplicationFiled: March 21, 2022Publication date: May 23, 2024Inventors: Julian Nowroth, Ivan Liu Zhu
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Patent number: 10948530Abstract: In at least one embodiment, an apparatus for monitoring isolation resistance in a vehicle is provided. The apparatus includes at least one controller that is configured to at least one of activate and deactivate any number of the plurality of switches and to perform a plurality of measurements on a high voltage system. The at least one controller is further configured to determine an isolation resistance between the high voltage system and the low voltage system based on the plurality of measurements and to determine a first resistance between the positive branch and a ground of the low voltage system based at least on the isolation resistance. The at least one controller is further configured to determine whether the isolation resistance of the high voltage system is exhibiting a symmetric failure, or an asymmetric failure based at least on the first resistance.Type: GrantFiled: October 29, 2018Date of Patent: March 16, 2021Assignee: LEAR CORPORATIONInventors: Ivan Liu Zhu, Josep Vallverdu Guasch
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Publication number: 20200132745Abstract: In at least one embodiment, an apparatus for monitoring isolation resistance in a vehicle is provided. The apparatus includes at least one controller that is configured to at least one of activate and deactivate any number of the plurality of switches and to perform a plurality of measurements on a high voltage system. The at least one controller is further configured to determine an isolation resistance between the high voltage system and the low voltage system based on the plurality of measurements and to determine a first resistance between the positive branch and a ground of the low voltage system based at least on the isolation resistance. The at least one controller is further configured to determine whether the isolation resistance of the high voltage system is exhibiting a symmetric failure, or an asymmetric failure based at least on the first resistance.Type: ApplicationFiled: October 29, 2018Publication date: April 30, 2020Inventors: Ivan LIU ZHU, Josep VALLVERDU GUASCH
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Patent number: 10122900Abstract: A web cam device includes a camera housing, a camera disposed in the camera housing, a data cable coupled to the camera that extends from the camera housing, and a base including an aperture to receive the data cable such that the base is slideable along the data cable, where the aperture provides a sliding friction to the data cable, and where the camera is operable to be mounted on a monitor when the camera is positioned on a front of the monitor, the data cable is configured to pass through the aperture of the base, and the base is secured against the back of the monitor and held by the sliding friction of the aperture on the data cable. The camera housing can include a protrusion extending from the camera housing and is flush against the front of the monitor when the camera is mounted on the display device.Type: GrantFiled: October 6, 2016Date of Patent: November 6, 2018Assignee: Logitech Europe S.A.Inventors: Ivan Liu, Ivan Ho, Jr-Jay Jhang, Gary Choi, Chun-Wei Su, Luke Wu
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Publication number: 20180103183Abstract: A web cam device includes a camera housing, a camera disposed in the camera housing, a data cable coupled to the camera that extends from the camera housing, and a base including an aperture to receive the data cable such that the base is slideable along the data cable, where the aperture provides a sliding friction to the data cable, and where the camera is operable to be mounted on a monitor when the camera is positioned on a front of the monitor, the data cable is configured to pass through the aperture of the base, and the base is secured against the back of the monitor and held by the sliding friction of the aperture on the data cable. The camera housing can include a protrusion extending from the camera housing and is flush against the front of the monitor when the camera is mounted on the display device.Type: ApplicationFiled: October 6, 2016Publication date: April 12, 2018Inventors: Ivan Liu, Ivan Ho, Jr-Jay Jhang, Gary Choi, Chun-Wei Su, Luke Wu
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Publication number: 20170127544Abstract: A displaying unit includes a rail unit, a connecting unit and a display unit. The rail unit includes a rail that extends in a lengthwise direction, a fixed circuit board that is disposed in the rail and that extends in the lengthwise direction, and a fixed electrode set that is disposed fixedly on the fixed circuit board and that extends in the lengthwise direction. The connecting unit is slidable on the rail in the lengthwise direction and includes a movable electrode set that is in sliding contact with the fixed electrode set. The display unit is connected to the connecting unit and is electrically connected to the movable electrode set.Type: ApplicationFiled: November 3, 2015Publication date: May 4, 2017Inventor: Ivan Liu
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Patent number: 9291338Abstract: A modular track assembly for a track light includes a track unit and a connector. The track unit includes a track, a circuit board, a pair of conductive elements, and a cap formed with two holes. The connector includes two conductive members, each of which includes two insertion segments. One of the insertion segments is inserted into a respective one of the holes and is connected electrically to a respective one of the conductive elements, and the other one of the insertion segments is configured to be inserted into a respective one of the holes of another modular track assembly to connect electrically to a respective one of the conductive elements of the another modular track assembly.Type: GrantFiled: December 10, 2013Date of Patent: March 22, 2016Assignee: DIODE-ON OPTOELECTRONICS LIMITEDInventor: Ivan Liu
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Patent number: 9293063Abstract: A training device that includes a receiving surface on its handle, multiple capacitive sensor elements disposed within multiple grip areas on the receiving surface, a sense circuit configured to compare the capacitance measurements with threshold capacitance values and generate a signal when the capacitance measurements indicate a touch on the grip area and an indicator.Type: GrantFiled: August 25, 2014Date of Patent: March 22, 2016Assignee: Cypress Semiconductor CorporationInventors: Yuanyuan Qin, Hua (Ivan) Liu
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Patent number: 9228735Abstract: A display stand includes a frame body and several illuminating support plate units. The frame body has several spaced-apart plate-mounting portions, and several power supply portions respectively adjacent to the plate-mounting portions. Each illuminating support plate unit includes a plate body coupled removably to one plate-mounting portion, an illuminating unit mounted on the plate body, and an electric connecting unit having a base portion that is embedded in the plate body, and an electric connecting portion that is disposed within a range defined between extensions of upper and lower surfaces of the plate body, and that is connected electrically to a corresponding one of the power supply portions.Type: GrantFiled: February 25, 2014Date of Patent: January 5, 2016Assignee: Diode-On Optoeletronics LimitedInventor: Ivan Liu
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Publication number: 20150184841Abstract: A track lighting fixture includes a rail unit, a slidable module, a rotatable module, and a lighting device. The slidable module is mounted on and is movable along the rail unit. The rotatable module is rotatably mounted to the slidable module and is rotatable about a rotation axis perpendicular to the rail unit. The lighting device is pivotably mounted to the rotatable module, is pivotable about a pivot axis that is perpendicular to the rotation axis, and includes a shade and at least one lighting element. The shade is pivotably mounted to the rotatable module, and the lighting element is disposed in the shade.Type: ApplicationFiled: December 27, 2013Publication date: July 2, 2015Applicant: DIODE-ON OPTOELECTRICONICS LIMITEDInventor: Ivan Liu
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Publication number: 20150159840Abstract: A modular track assembly for a track light includes a track unit and a connector. The track unit includes a track, a circuit board, a pair of conductive elements, and a cap formed with two holes. The connector includes two conductive members, each of which includes two insertion segments. One of the insertion segments is inserted into a respective one of the holes and is connected electrically to a respective one of the conductive elements, and the other one of the insertion segments is configured to be inserted into a respective one of the holes of another modular track assembly to connect electrically to a respective one of the conductive elements of the another modular track assembly.Type: ApplicationFiled: December 10, 2013Publication date: June 11, 2015Applicant: DIODE-ON OPTOELECTRONICS LIMITEDInventor: Ivan Liu
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Publication number: 20150092397Abstract: A display stand includes a frame body and several illuminating support plate units. The frame body has several spaced-apart plate-mounting portions, and several power supply portions respectively adjacent to the plate-mounting portions. Each illuminating support plate unit includes a plate body coupled removably to one plate-mounting portion, an illuminating unit mounted on the plate body, and an electric connecting unit having a base portion that is embedded in the plate body, and an electric connecting portion that is disposed within a range defined between extensions of upper and lower surfaces of the plate body, and that is connected electrically to a corresponding one of the power supply portions.Type: ApplicationFiled: February 25, 2014Publication date: April 2, 2015Applicant: DIODE-ON OPTOELECTRONICS LIMITEDInventor: Ivan Liu
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Publication number: 20150080154Abstract: A training device that includes a receiving surface on its handle, multiple capacitive sensor elements disposed within multiple grip areas on the receiving surface, a sense circuit configured to compare the capacitance measurements with threshold capacitance values and generate a signal when the capacitance measurements indicate a touch on the grip area and an indicator.Type: ApplicationFiled: August 25, 2014Publication date: March 19, 2015Inventors: Yuanyuan Qin, Hua (Ivan) Liu
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Publication number: 20140340879Abstract: A showcase includes a frame unit and a lighting unit. The frame unit includes a rectangular housing with top and bottom plates, two side plates, a back plate, a front opening and a transparent window plate covering the front opening. The lighting unit includes a top lighting subunit connected to the top plate, a label plate holder disposed on the bottom plate, and a side lighting subunit disposed inside the label plate holder. The top lighting unit provides soft indirect lighting toward the bottom plate, and at least a portion of light emitted from the side lighting unit penetrates the label plate holder toward the back plate.Type: ApplicationFiled: December 11, 2013Publication date: November 20, 2014Applicant: DIODE-ON OPTOELECTRONICS LIMTEDInventor: Ivan LIU
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Patent number: 8875637Abstract: An access door which opens and closes an opening that extends through a surface by which access is provided through the surface as, for example, to communication and power outlets, wires, cables, cable raceways, switches and the like behind the surface.Type: GrantFiled: March 15, 2013Date of Patent: November 4, 2014Assignee: Inscape CorporationInventors: John D. Sherman, David Parshad, Ivan Liu
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Publication number: 20140261104Abstract: An access door which opens and closes an opening that extends through a surface by which access is provided through the surface as, for example, to communication and power outlets, wires, cables, cable raceways, switches and the like behind the surface.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: Inscape CorporationInventors: John D. Sherman, David Parshad, Ivan Liu
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Patent number: D867419Type: GrantFiled: October 6, 2016Date of Patent: November 19, 2019Assignee: Logitech Europe S.A.Inventors: Ivan Liu, Gary Choi, Chun-Wei Su
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Patent number: D1016881Type: GrantFiled: May 31, 2022Date of Patent: March 5, 2024Assignee: Logitech Europe S.A.Inventors: Drew Putterman, Ivan Liu
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Patent number: D1035742Type: GrantFiled: January 19, 2024Date of Patent: July 16, 2024Assignee: Logitech Europe S.A.Inventors: Drew Putterman, Ivan Liu
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Patent number: D1051201Type: GrantFiled: June 6, 2024Date of Patent: November 12, 2024Assignee: Logitech Europe S.A.Inventors: Drew Putterman, Ivan Liu