Patents by Inventor Ming-Wang Cheng
Ming-Wang Cheng 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: 20240107416Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a first UE. In certain configurations, the first UE operates in an idle or inactive protocol state in a service of a first cell and performs a discovery procedure with a second UE, wherein the discovery procedure includes indicating, to the second UE, an identity of the first cell. The first UE further performs a cell reselection procedure to a second cell, receives, from the second UE, subsequent to the performing the cell reselection procedure, a message for forwarding to the first cell, and sends, to the second UE, a notification message, wherein the notification message includes an indication of an inability to forward the message.Type: ApplicationFiled: September 18, 2023Publication date: March 28, 2024Inventors: Nathan Edward Tenny, Xuelong Wang, Ming-Yuan Cheng
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Publication number: 20240107454Abstract: A User Equipment (UE) including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from one or more peer UEs. The controller determines a Sidelink (SL) Discontinuous Reception (DRX) configuration set, and applies the SL DRX configuration set to enable a DRX operation for SL communications with the peer UEs via the wireless transceiver; wherein the SL DRX configuration set is determined based on one of the following: one or more types of one or more SL services which the UE is participating with the peer UEs; one or more SL DRX configurations received from the peer UEs; and control information received from a Base Station (BS).Type: ApplicationFiled: December 8, 2023Publication date: March 28, 2024Applicant: MEDIATEK INC.Inventors: Guan-Yu LIN, Ming-Yuan CHENG, Nathan Edward TENNY, Xuelong WANG
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Patent number: 11281278Abstract: A battery backup system includes a battery pack, a charger, a discharger, a voltage detection and control circuit, a first protection switch, a second protection switch and a third protection switch. The battery pack provides a backup power to a DC bus. The charger, connected to the battery pack, receives an external power. The discharger has an input end and an output end. The voltage detection and control circuit detects whether the voltage of the DC bus is greater than first or second voltage drop point. The first, the second and the third protection switches respectively are connected between the battery pack and the input end, between the DC bus and the output end, and between the charger and the input end. The first protection switch is turned on/off according to whether the voltage of the DC bus is less than or greater than the first voltage drop point.Type: GrantFiled: November 3, 2020Date of Patent: March 22, 2022Inventors: Ming-Wang Cheng, Yi-Pin Lee, Ching Hsieh
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Publication number: 20220004241Abstract: A battery backup system includes a battery pack, a charger, a discharger, a voltage detection and control circuit, a first protection switch, a second protection switch and a third protection switch. The battery pack provides a backup power to a DC bus. The charger, connected to the battery pack, receives an external power. The discharger has an input end and an output end. The voltage detection and control circuit detects whether the voltage of the DC bus is greater than first or second voltage drop point. The first, the second and the third protection switches respectively are connected between the battery pack and the input end, between the DC bus and the output end, and between the charger and the input end. The first protection switch is turned on/off according to whether the voltage of the DC bus is less than or greater than the first voltage drop point.Type: ApplicationFiled: November 3, 2020Publication date: January 6, 2022Inventors: Ming-Wang CHENG, Yi-Pin LEE, Ching HSIEH
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Patent number: 9647492Abstract: A DC uninterruptible power supply system includes plural uninterruptible power supply devices, each of which includes a power cord, a battery module, a voltage detecting circuit, a current detecting circuit, and a control unit. When the voltage detecting circuit detects that a voltage at the power cord is lower than a first preset value, the control unit controls the battery module to output electrical power to the power cord. When the current detecting circuit detects that current of another uninterruptible power supply device is smaller than a second preset value, the control unit controls a switch to permit current flow to the another uninterruptible power supply device.Type: GrantFiled: April 7, 2014Date of Patent: May 9, 2017Assignees: Lite-On Electronics (Guangzhou) Limited, Lite-On Technology Corp.Inventors: Liang-Chun Lin, Yi-Nan Lai, Wei-Lieh Lai, Ming-Wang Cheng
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Patent number: 9472952Abstract: A battery module includes a plurality of battery units, each of which supplies electrical power to a load through a respective linear regulator. In a method for managing supply of electrical power by the battery module, a number of battery units that supply electrical power to the load is controlled according to magnitude of a current required by the load, so as to reduce power loss in the linear regulators.Type: GrantFiled: April 15, 2014Date of Patent: October 18, 2016Assignees: Lite-On Electronics (Guangzhou) Limited, Lite-On Technology Corp.Inventors: Liang-Chun Lin, Te-Yu Chou, Ming-Wang Cheng, Wei-Lieh Lai
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Patent number: 9285434Abstract: A direct current (dc) uninterruptible power system is disclosed. The dc-based uninterruptible power system includes a multiplexer, a battery unit, a linear regulator, a switch-transistor, a voltage comparator and micro controller. The multiplexer receives a first control signal, a first reference voltage and a second reference voltage and outputs a control voltage according to the first control signal. The switch-transistor has a body diode and the body diode has a conduction voltage. When the dc-based uninterruptible power system is non-discharge mode, the switch-transistor is switched-off and the linear regulator receives the first reference voltage, so that the subtraction of the output voltage and the power-supply voltage is smaller than the conduction voltage to cutoff the body diode.Type: GrantFiled: September 14, 2013Date of Patent: March 15, 2016Assignees: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, LITE-ON TECHNOLOGY CORPORATIONInventors: Liang-Chun Lin, Te-Yu Chou, Ming-Wang Cheng, Wei-Lieh Lai
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Publication number: 20150021989Abstract: A DC uninterruptible power supply system includes plural uninterruptible power supply devices, each of which includes a power cord, a battery module, a voltage detecting circuit, a current detecting circuit, and a control unit. When the voltage detecting circuit detects that a voltage at the power cord is lower than a first preset value, the control unit controls the battery module to output electrical power to the power cord. When the current detecting circuit detects that current of another uninterruptible power supply device is smaller than a second preset value, the control unit controls a switch to permit current flow to the another uninterruptible power supply device.Type: ApplicationFiled: April 7, 2014Publication date: January 22, 2015Applicants: LITE-ON TECHNOLOGY CORP., LITE-ON ELECTRONICS (GUANGZHOU) LIMITEDInventors: LIANG-CHUN LIN, YI-NAN LAI, WEI-LIEH LAI, MING-WANG CHENG
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Publication number: 20150022156Abstract: A battery module includes a plurality of battery units, each of which supplies electrical power to a load through a respective linear regulator. In a method for managing supply of electrical power by the battery module, a number of battery units that supply electrical power to the load is controlled according to magnitude of a current required by the load, so as to reduce power loss in the linear regulators.Type: ApplicationFiled: April 15, 2014Publication date: January 22, 2015Applicants: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, LITE-ON TECHNOLOGY CORP.Inventors: LIANG-CHUN LIN, TE-YU CHOU, MING-WANG CHENG, WEI-LIEH LAI
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Publication number: 20140333137Abstract: A direct current (dc) uninterruptible power system is disclosed. The dc-based uninterruptible power system includes a multiplexer, a battery unit, a linear regulator, a switch-transistor, a voltage comparator and micro controller. The multiplexer receives a first control signal, a first reference voltage and a second reference voltage and outputs a control voltage according to the first control signal. The switch-transistor has a body diode and the body diode has a conduction voltage. When the dc-based uninterruptible power system is non-discharge mode, the switch-transistor is switched-off and the linear regulator receives the first reference voltage, so that the subtraction of the output voltage and the power-supply voltage is smaller than the conduction voltage to cutoff the body diode.Type: ApplicationFiled: September 14, 2013Publication date: November 13, 2014Applicants: Lite-On Technology Corporation, Lite-On Electronics (Guangzhou) LimitedInventors: LIANG-CHUN LIN, Te-Yu Chou, Ming-Wang Cheng, Wei-Lieh Lai
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Patent number: 8659299Abstract: A battery voltage measurement system is disclosed. The system includes a measurement unit, a calibration unit, and a control unit. The calibration unit is coupled between the measurement unit and a battery, for providing several test voltages to the measurement unit. The control unit is coupled to the calibration unit and the measurement unit, for controlling the calibration unit and for receiving an output voltage of the measurement unit. Under a calibration mode, the calibration unit outputs test voltages to the measurement unit, and the control unit calculates a calibration value according to a relation between the test voltages and the output voltage of the measurement unit. Under a measurement mode, the calibration unit transmits a battery voltage to the measurement unit, and the control unit calibrates the output voltage of the measurement unit according to the calibration value for acquiring accurate value of the battery voltage.Type: GrantFiled: September 1, 2011Date of Patent: February 25, 2014Assignee: Lite-On Clean Energy Technoloy Corp.Inventors: Ming-Wang Cheng, Hsiang-Chun Hsueh
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Patent number: 8441234Abstract: A detecting module is for detecting a battery equalizer of a power supply device. The detecting module includes a current detecting unit, a drive circuit, and a control circuit. The current detecting unit is to be coupled to the battery equalizer and a battery set of the power supply device, and generates an output based on detected current flow through the battery equalizer. The drive circuit is to be coupled to the battery equalizer for driving operation of the battery equalizer. The control circuit is coupled to the drive circuit and the current detecting unit, controls the drive circuit to drive operation of the battery equalizer and determines, according to the output of the current detecting circuit, whether the battery equalizer is in a normal operating state.Type: GrantFiled: January 18, 2011Date of Patent: May 14, 2013Assignee: Lite-On Clean Energy Technology Corp.Inventors: Ming-Wang Cheng, Hsiang-Chun Hsueh
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Publication number: 20130002259Abstract: A battery voltage measurement system is disclosed. The system includes a measurement unit, a calibration unit, and a control unit. The calibration unit is coupled between the measurement unit and a battery, for providing several test voltages to the measurement unit. The control unit is coupled to the calibration unit and the measurement unit, for controlling the calibration unit and for receiving an output voltage of the measurement unit. Under a calibration mode, the calibration unit outputs test voltages to the measurement unit, and the control unit calculates a calibration value according to a relation between the test voltages and the output voltage of the measurement unit. Under a measurement mode, the calibration unit transmits a battery voltage to the measurement unit, and the control unit calibrates the output voltage of the measurement unit according to the calibration value for acquiring accurate value of the battery voltage.Type: ApplicationFiled: September 1, 2011Publication date: January 3, 2013Applicant: LITE-ON CLEAN ENERGY TECHNOLOGY CORP.Inventors: MING-WANG CHENG, HSIANG-CHUN HSUEH
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Publication number: 20120286733Abstract: A battery equalizer for equalizing electrical energy of a first battery unit and a second battery unit includes a first diode, a first switch, a second diode, a second switch, a capacitor and an inductor. The components are electrically connected to be able to form different circuit loops to equalize the electrical energy of the two battery units.Type: ApplicationFiled: January 3, 2012Publication date: November 15, 2012Applicant: LITE-ON CLEAN ENERGY TECHNOLOGY CORP.Inventors: CHENG-EN CHANG, MING-WANG CHENG
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Patent number: 8253380Abstract: A characteristic tracking method for a battery module including at least one battery is disclosed. A look-up table is provided according to a primary characteristic of the battery. It is determined whether a battery has satisfied a preset condition when the battery module is operated from a usage state to an idling state. The battery is measured to have obtained a first voltage and a real capacity when the battery satisfies the preset condition. The measured first voltage is utilized to locate a table capacity of the battery from the look-up table. The look-up table is updated according to the real capacity and the table capacity. A peripheral circuit of characteristic tracking method has been exhibited.Type: GrantFiled: July 2, 2009Date of Patent: August 28, 2012Assignee: Industrial Technology Research InstituteInventors: Chein-Chung Sun, Yuh-Fwu Chou, Ming-Wang Cheng, Sheng-Yong Shen
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Publication number: 20120074894Abstract: A hybrid battery module and a battery management method are provided. The hybrid battery module comprises a first energy storage unit, a second energy storage unit, and a charging unit. The charging unit is coupled between the first energy storage unit and the second energy storage unit for selectively providing a charging path between the first energy storage unit and the second storage unit. The first energy storage unit and the second energy storage unit transmit the energy stored therein to each other through the charging unit to maintain optimum power statuses thereof.Type: ApplicationFiled: January 11, 2011Publication date: March 29, 2012Applicant: LITE-ON CLEAN ENERGY TECHNOLOGY CORP.Inventors: Jan-Gee Chen, Ming-Wang Cheng
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Publication number: 20120038321Abstract: A detecting module is for detecting a battery equalizer of a power supply device. The detecting module includes a current detecting unit, a drive circuit, and a control circuit. The current detecting unit is to be coupled to the battery equalizer and a battery set of the power supply device, and generates an output based on detected current flow through the battery equalizer. The drive circuit is to be coupled to the battery equalizer for driving operation of the battery equalizer. The control circuit is coupled to the drive circuit and the current detecting unit, controls the drive circuit to drive operation of the battery equalizer and determines, according to the output of the current detecting circuit, whether the battery equalizer is in a normal operating state.Type: ApplicationFiled: January 18, 2011Publication date: February 16, 2012Applicant: LITE-ON CLEAN ENERGY TECHNOLOGY CORP.Inventors: MING-WANG CHENG, HSIANG-CHUN HSUEH
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Publication number: 20100072948Abstract: A characteristic tracking method for a battery module including at least one battery is disclosed. A look-up table is provided according to a primary characteristic of the battery. It is determined whether a battery has satisfied a preset condition when the battery module is operated from a usage state to an idling state. The battery is measured to have obtained a first voltage and a real capacity when the battery satisfies the preset condition. The measured first voltage is utilized to locate a table capacity of the battery from the look-up table. The look-up table is updated according to the real capacity and the table capacity. A peripheral circuit of characteristic tracking method has been exhibited.Type: ApplicationFiled: July 2, 2009Publication date: March 25, 2010Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chein-Chung SUN, Yuh-Fwu Chou, Ming-Wang Cheng, Sheng-Yong Shen
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Publication number: 20080157778Abstract: An estimation method for estimating a remaining capacity of a battery utilized by an electronic system is disclosed. The voltage of the battery is detected or is determined by a first reference value. When the duration of a specific state arrives at a preset time, a specific action is executed.Type: ApplicationFiled: December 19, 2007Publication date: July 3, 2008Inventors: Yuh-Fwu Chou, Po-Yin Tseng, Ming-Wang Cheng