Patents by Inventor Yen-Hung Wu
Yen-Hung Wu 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: 11953877Abstract: Manufacturing of a shoe or a portion of a shoe is enhanced by executing various shoe-manufacturing processes in an automated fashion. For example, information describing a shoe part may be determined, such as an identification, an orientation, a color, a surface topography, an alignment, a size, etc. Based on the information describing the shoe part, automated shoe-manufacturing apparatuses may be instructed to apply various shoe-manufacturing processes to the shoe part, such as a pickup and placement of the shoe part with a pickup tool.Type: GrantFiled: October 20, 2022Date of Patent: April 9, 2024Assignee: NILE, Inc.Inventors: Dragan Jurkovic, Patrick Conall Regan, Chih-Chi Chang, Chang-chu Liao, Ming-Feng Jean, Kuo-Hung Lee, Yen-Hsi Liu, Hung-Yu Wu
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Publication number: 20220043288Abstract: Disclosed herein is a tunable diffraction grating using surface acoustic waves. In some embodiments, the tunable diffraction grating includes a piezoelectric substrate including an interdigital transducer (IDT) region and a delay line region; a plurality of IDT electrodes positioned in the IDT region, wherein the IDT electrodes are each individually addressable such that the voltage applied to each of the electrodes is phase shifted, and wherein the IDT electrodes provide the phase shifted voltage to induce surface acoustic waves in the piezoelectric substrate in a pattern which produce a grating in the delay line region. Advantageously, tunable diffraction gratings have many applications including spectrometers for orbiters and rovers to Mars.Type: ApplicationFiled: August 9, 2021Publication date: February 10, 2022Applicant: California Institute of TechnologyInventors: Yen-Hung Wu, Stewart Sherrit, Valerie Scott Kristof, Mina Rais-Zadeh, Mustafa B. Coskun
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Patent number: 10649059Abstract: A multi-channel detecting system is disclosed. The multi-channel detecting system includes one or more signal-generating units, one or more detecting units, one or more amplifying units, and a calibration unit; the one or more signal-generating units are configured to provide a plurality of signals, the one or more detecting units are configured to detecting a plurality of signals from the one or more signal-generating units and transmitting through a plurality of calibration samples and generating corresponding quantized values; the one or more amplifying units electrically connected to the one or more detecting units are configured to amplify the quantized values; the calibration unit electrically connected to the one or more amplifying units is configured to calibrate the one or more amplifying units to make amplified quantized values provided by the amplifying units to be equal to one or more specific values.Type: GrantFiled: June 22, 2018Date of Patent: May 12, 2020Assignee: DELTA ELECTRONICS, INC.Inventors: Yen-Po Tai, Yen-Hung Wu, Po-Lin Chou, Zheng Fei Fang
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Publication number: 20200064877Abstract: A regulator is provided. The regulator includes a constant current source, a first transistor, a resistor, and a second transistor. The constant current source is coupled to a first node and configured to provide a bias current. The first transistor has a drain terminal coupled to the first node, a gate terminal coupled to a second node, and a source terminal. The resistor is connected in series between the source terminal of the first transistor and a ground terminal. The second transistor has a drain terminal coupled to an operation voltage node, a gate terminal coupled to the node, and a source terminal coupled to the second node. The second transistor provides an output voltage. The first transistor controls the second transistor so as to maintain a stable output voltage.Type: ApplicationFiled: June 14, 2019Publication date: February 27, 2020Inventor: Yen-Hung WU
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Patent number: 10456625Abstract: A sporting apparatus comprises a structure body, an endless belt, an electricity generating unit, a position sensing unit and a modulation unit for continuously outputting electricity as the sporting apparatus is continuously operated. The electricity generating unit transforms kinetic energy, which is transmitted from the endless belt, into electric power. The position sensing unit senses a position of a user on the endless belt so as to generate a sensing signal. The modulation unit includes a DC/AC inverter, a current sensing element, an inductor and a semiconductor switch with a controller. The current sensing element senses an armature current outputted from the electricity generating unit and outputs a signal to the controller. The controller controls the duty ratio of the semiconductor switch to control the armature current, so that the armature current is adjusted according to the sensing signal for controlling the rotation speed of the endless belt.Type: GrantFiled: August 25, 2016Date of Patent: October 29, 2019Assignee: Delta Electronics, Inc.Inventors: Tsu-Hua Ai, Chih-Yang Chen, Yen-Hung Wu
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Publication number: 20190277936Abstract: A multi-channel detecting system is disclosed. The multi-channel detecting system includes one or more signal-generating units, one or more detecting units, one or more amplifying units, and a calibration unit; the one or more signal-generating units are configured to provide a plurality of signals, the one or more detecting units are configured to detecting a plurality of signals from the one or more signal-generating units and transmitting through a plurality of calibration samples and generating corresponding quantized values; the one or more amplifying units electrically connected to the one or more detecting units are configured to amplify the quantized values; the calibration unit electrically connected to the one or more amplifying units is configured to calibrate the one or more amplifying units to make amplified quantized values provided by the amplifying units to be equal to one or more specific values.Type: ApplicationFiled: June 22, 2018Publication date: September 12, 2019Inventors: Yen-Po TAI, Yen-Hung WU, Po-Lin CHOU, Zheng Fei FANG
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Publication number: 20160367859Abstract: A sporting apparatus comprises a structure body, an endless belt, an electricity generating unit, a position sensing unit and a modulation unit for continuously outputting electricity as the sporting apparatus is continuously operated. The electricity generating unit transforms kinetic energy, which is transmitted from the endless belt, into electric power. The position sensing unit senses a position of a user on the endless belt so as to generate a sensing signal. The modulation unit includes a DC/AC inverter, a current sensing element, an inductor and a semiconductor switch with a controller. The current sensing element senses an armature current outputted from the electricity generating unit and outputs a signal to the controller. The controller controls the duty ratio of the semiconductor switch to control the armature current, so that the armature current is adjusted according to the sensing signal for controlling the rotation speed of the endless belt.Type: ApplicationFiled: August 25, 2016Publication date: December 22, 2016Inventors: Tsu-Hua AI, Chih-Yang CHEN, Yen-Hung WU
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Patent number: 9276510Abstract: An embodiment of the invention provides an AC motor that is driven by an AC voltage. The AC motor includes a motor coil, a switch circuit, a position detector and a controller. The motor coil receives the AC voltage to drive an axis of the motor. The switch circuit is coupled to the motor coil and controls a current passing through the motor coil. The position detector detects the position of a motor rotor to output a polarity signal. The controller controls the switch circuit according to the polarity signal and the AC voltage to make the current to be a first current with a first direction or a second current with a second direction.Type: GrantFiled: July 3, 2014Date of Patent: March 1, 2016Assignee: DELTA ELECTRONICS, INC.Inventors: Yueh-Lung Huang, Tsung-Jung Hsieh, Yen-Hung Wu
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Patent number: 9240741Abstract: An embodiment of the invention provides an AC motor that is driven by an AC voltage. The AC motor includes a motor coil, a switch circuit, a position detector and a controller. The motor coil receives the AC voltage to drive an axis of the motor. The switch circuit is coupled to the motor coil and controls a current passing through the motor coil. The position detector detects the position of a motor rotor to output a polarity signal. The controller controls the switch circuit according to the polarity signal and the AC voltage to make the current to be a first current with a first direction or a second current with a second direction.Type: GrantFiled: September 23, 2011Date of Patent: January 19, 2016Assignee: DELTA ELECTRONICS, INC.Inventors: Yueh-Lung Huang, Tsung-Jung Hsieh, Yen-Hung Wu
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Publication number: 20140320049Abstract: An embodiment of the invention provides an AC motor that is driven by an AC voltage. The AC motor includes a motor coil, a switch circuit, a position detector and a controller. The motor coil receives the AC voltage to drive an axis of the motor. The switch circuit is coupled to the motor coil and controls a current passing through the motor coil. The position detector detects the position of a motor rotor to output a polarity signal. The controller controls the switch circuit according to the polarity signal and the AC voltage to make the current to be a first current with a first direction or a second current with a second direction.Type: ApplicationFiled: July 3, 2014Publication date: October 30, 2014Inventors: Yueh-Lung HUANG, Tsung-Jung HSIEH, Yen-Hung WU
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Patent number: 8629639Abstract: A brushless direct current (DC) motor includes a rotor, a stator and a driving unit. The rotor includes a plurality of magnetic poles. The stator includes a plurality of upper pole arms and a plurality of lower pole arms. The driving unit includes at least two coils wound on the upper pole arms and the lower pole arms respectively, and the driving unit generates an alternating magnetic field on the stator for driving the rotor.Type: GrantFiled: March 4, 2009Date of Patent: January 14, 2014Assignee: Delta Electronics, Inc.Inventors: Yen-Hung Wu, Tsung-Jung Hsieh, Yueh-Lung Huang
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Patent number: 8456119Abstract: A driving device of a brushless DC motor for a fan includes a protection circuit, a storage circuit, a control circuit and a bridge circuit. The protection circuit is electrically connected with an auxiliary power. The storage circuit electrically connected with the protection circuit receives the auxiliary power. The control circuit is electrically connected with the protection circuit and the storage circuit. The bridge circuit electrically connected with the control circuit has a first switching unit, a second switching unit, a third switching unit and a fourth switching unit. The first and second switching units are coupled with one end of a motor coil. The third switching unit and the fourth switching unit are coupled with the other end of the motor coil. The first switching unit is electrically connected with the third switching unit, and the second switching unit is electrically connected with the fourth switching unit.Type: GrantFiled: May 2, 2011Date of Patent: June 4, 2013Assignee: Delta Electronics, Inc.Inventors: Yen-Hung Wu, Tsung-Jung Hsieh
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Publication number: 20130005533Abstract: A sporting apparatus comprises a structure body, an endless belt, an electricity generating unit and a position sensing unit. The endless belt is disposed on the structure body. The electricity generating unit is disposed in the structure body and transforms kinetic energy, which is transmitted from the endless belt, into electric power. The position sensing unit is disposed in the structure body and senses a position of a user on the endless belt so as to generate a sensing signal. An armature current of the electricity generating unit is adjusted according to the sensing signal for controlling a rotation speed of the endless belt. A control method of the sporting apparatus is also disclosed.Type: ApplicationFiled: June 29, 2012Publication date: January 3, 2013Applicant: DELTA ELECTRONICS, INC.Inventors: Tsu-Hua AI, Chih-Yang CHEN, Yen-Hung WU
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Publication number: 20120286711Abstract: An embodiment of the invention provides an AC motor that is driven by an AC voltage. The AC motor includes a motor coil, a switch circuit, a position detector and a controller. The motor coil receives the AC voltage to drive an axis of the motor. The switch circuit is coupled to the motor coil and controls a current passing through the motor coil. The position detector detects the position of a motor rotor to output a polarity signal. The controller controls the switch circuit according to the polarity signal and the AC voltage to make the current to be a first current with a first direction or a second current with a second direction.Type: ApplicationFiled: September 23, 2011Publication date: November 15, 2012Inventors: Yueh-Lung HUANG, Tsung-Jung HSIEH, Yen-Hung WU
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Publication number: 20120068650Abstract: A driving device of a brushless DC motor for a fan includes a protection circuit, a storage circuit, a control circuit and a bridge circuit. The protection circuit is electrically connected with an auxiliary power. The storage circuit electrically connected with the protection circuit receives the auxiliary power. The control circuit is electrically connected with the protection circuit and the storage circuit. The bridge circuit electrically connected with the control circuit has a first switching unit, a second switching unit, a third switching unit and a fourth switching unit. The first and second switching units are coupled with one end of a motor coil. The third switching unit and the fourth switching unit are coupled with the other end of the motor coil. The first switching unit is electrically connected with the third switching unit, and the second switching unit is electrically connected with the fourth switching unit.Type: ApplicationFiled: May 2, 2011Publication date: March 22, 2012Inventors: Yen-Hung WU, Tsung-Jung Hsieh
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Patent number: 8080963Abstract: A motor driving circuit includes a detecting unit, a signal control unit, a comparing unit and a driving unit. The detecting unit detects a rotation speed of a motor and thus outputs a detecting signal. The signal control unit generates a reference signal. The comparing unit electrically connected with the detecting unit and the signal control unit, and receives the detecting signal and the reference signal and thus outputs a comparing signal. The driving unit electrically connected with the comparing unit, and receives the comparing signal and thus outputs a driving signal to drive the motor.Type: GrantFiled: September 30, 2008Date of Patent: December 20, 2011Assignee: Delta Electronics, Inc.Inventors: Yen-Hung Wu, Tsung-Jung Hsieh, Yueh-Lung Huang
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Publication number: 20100164420Abstract: A brushless direct current (DC) motor includes a rotor, a stator and a driving unit. The rotor includes a plurality of magnetic poles. The stator includes a plurality of upper pole arms and a plurality of lower pole arms. The driving unit includes at least two coils wound on the upper pole arms and the lower pole arms respectively, and the driving unit generates an alternating magnetic field on the stator for driving the rotor.Type: ApplicationFiled: March 4, 2009Publication date: July 1, 2010Inventors: Yen-Hung Wu, Tsung-Jung Hsieh, Yueh-Lung Huang
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Patent number: 7671738Abstract: A driving control device of a motor includes a temperature sensing circuit, a comparing circuit, a rotation speed control circuit and a driving circuit. The temperature sensing circuit detects an environmental temperature for generating a sensing signal. The comparing circuit is electrically connected to the temperature sensing circuit, and compares the sensing signal with a reference voltage signal for outputting a comparing signal. The rotation speed control circuit is electrically connected to the comparing circuit and has a first threshold voltage and a second threshold voltage, both of which are compared with the comparing signal for outputting a rotation speed control signal. The driving circuit is electrically connected to the rotation speed control circuit, and generates a driving signal to drive the motor in accordance with the rotation speed control signal.Type: GrantFiled: September 14, 2007Date of Patent: March 2, 2010Assignee: Delta Electronics, Inc.Inventors: Chia-Huang Wu, Yen-Hung Wu, Yi-Chieh Cho, Yueh-Lung Huang, Wen-Shi Huang
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Publication number: 20090167230Abstract: A motor driving circuit includes a detecting unit, a signal control unit, a comparing unit and a driving unit. The detecting unit detects a rotation speed of a motor and thus outputs a detecting signal. The signal control unit generates a reference signal. The comparing unit electrically connected with the detecting unit and the signal control unit, and receives the detecting signal and the reference signal and thus outputs a comparing signal. The driving unit electrically connected with the comparing unit, and receives the comparing signal and thus outputs a driving signal to drive the motor.Type: ApplicationFiled: September 30, 2008Publication date: July 2, 2009Applicant: DELTA ELECTRONICS, INC.Inventors: Yen-Hung WU, Tsung-Jung HSIEH, Yueh-Lung HUANG
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Publication number: 20080088463Abstract: A driving control device of a motor includes a temperature sensing circuit, a comparing circuit, a rotation speed control circuit and a driving circuit. The temperature sensing circuit detects an environmental temperature for generating a sensing signal. The comparing circuit is electrically connected to the temperature sensing circuit, and compares the sensing signal with a reference voltage signal for outputting a comparing signal. The rotation speed control circuit is electrically connected to the comparing circuit and has a first threshold voltage and a second threshold voltage, both of which are compared with the comparing signal for outputting a rotation speed control signal. The driving circuit is electrically connected to the rotation speed control circuit, and generates a driving signal to drive the motor in accordance with the rotation speed control signal.Type: ApplicationFiled: September 14, 2007Publication date: April 17, 2008Inventors: Chia-Huang Wu, Yen-Hung Wu, Yi-Chieh Cho, Yueh-Lung Huang, Wen-Shi Huang