Patents by Inventor Chao-Jen Huang
Chao-Jen Huang 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: 11934027Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.Type: GrantFiled: June 21, 2022Date of Patent: March 19, 2024Assignee: TDK TAIWAN CORP.Inventors: Chao-Chang Hu, Chih-Wei Weng, Chia-Che Wu, Chien-Yu Kao, Hsiao-Hsin Hu, He-Ling Chang, Chao-Hsi Wang, Chen-Hsien Fan, Che-Wei Chang, Mao-Gen Jian, Sung-Mao Tsai, Wei-Jhe Shen, Yung-Ping Yang, Sin-Hong Lin, Tzu-Yu Chang, Sin-Jhong Song, Shang-Yu Hsu, Meng-Ting Lin, Shih-Wei Hung, Yu-Huai Liao, Mao-Kuo Hsu, Hsueh-Ju Lu, Ching-Chieh Huang, Chih-Wen Chiang, Yu-Chiao Lo, Ying-Jen Wang, Shu-Shan Chen, Che-Hsiang Chiu
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Publication number: 20240087861Abstract: In an embodiment, a magnetic assembly includes: an inner permeance annulus; and an outer permeance annulus connected to the inner permeance annulus via magnets, wherein the outer permeance annulus comprises a peak region with a thickness greater than other regions of the outer permeance annulus.Type: ApplicationFiled: November 17, 2023Publication date: March 14, 2024Inventors: Tsung-Jen YANG, Yi-Zhen CHEN, Chih-Pin WANG, Chao-Li SHIH, Ching-Hou SU, Cheng-Yi HUANG
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Patent number: 10905876Abstract: An electrical stimulation control circuit including a pulse generator, a processing circuit and an electrode is provided. The pulse generator is configured to generate a switching signal. The processing circuit generates an energy signal according to the switching signal. The electrode is configured to contact the skin of a living body and includes a first comb electrode and a second comb electrode. The first comb electrode receives the energy signal and includes a plurality of first electrodes. The first electrodes are electrically connected to each other and extended along a first direction. The second comb electrode receives a ground signal and includes a plurality of second electrodes. The second electrodes are electrically connected to each other and extended along a second direction opposite to the first direction. The first electrodes and the second electrodes are arranged in a staggered manner and electrically insulated from each other.Type: GrantFiled: December 28, 2017Date of Patent: February 2, 2021Assignees: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, KAOHSIUNG MEDICAL UNIVERSITYInventors: Chia-Chan Hsu, Chao-Jen Huang, Su-Shin Lee
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Publication number: 20200209053Abstract: The disclosure discloses a motor vibration or noise frequency detecting apparatus and method thereof. A processor and a frequency sensing unit are used to process and quantify a time domain signal, obtain a frequency domain result through computation, obtain a characteristic amplitude from the frequency domain result, and set characteristic amplitude as a trigger amplitude, which is then compared with a to-be-measured amplitude for use in computations or triggering events. The disclosure is used in a motor apparatus to detect a time domain abnormality, save power consumption for long-term use of frequency domain detection, and allow the motor to be monitored for a long time under battery power so the loss of the production line caused by the unwarranted shutdown can be avoided.Type: ApplicationFiled: December 28, 2018Publication date: July 2, 2020Applicant: Industrial Technology Research InstituteInventor: Chao-Jen Huang
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Publication number: 20190184157Abstract: An electrical stimulation control circuit including a pulse generator, a processing circuit and an electrode is provided. The pulse generator is configured to generate a switching signal. The processing circuit generates an energy signal according to the switching signal. The electrode is configured to contact the skin of a living body and includes a first comb electrode and a second comb electrode. The first comb electrode receives the energy signal and includes a plurality of first electrodes. The first electrodes are electrically connected to each other and extended along a first direction. The second comb electrode receives a ground signal and includes a plurality of second electrodes. The second electrodes are electrically connected to each other and extended along a second direction opposite to the first direction. The first electrodes and the second electrodes are arranged in a staggered manner and electrically insulated from each other.Type: ApplicationFiled: December 28, 2017Publication date: June 20, 2019Inventors: Chia-Chan HSU, Chao-Jen HUANG, Su-Shin LEE
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Publication number: 20180262104Abstract: An energy management apparatus is provided. The energy management apparatus includes an input configured to receive an input voltage from an energy harvester, a first output coupled to device load circuit, a second output coupled to an energy storage device, and a converter circuit. The converter circuit includes an inductor. The converter circuit is coupled between the input, the first output, and the second output. The converter circuit is configured to use the inductor for generating a load current at the first output and generating a charging current at the second output. The converter circuit is configured to operate in a direct feeding mode to generate the load current from the energy harvester in order to provide a regulated output voltage to the device load circuit.Type: ApplicationFiled: March 9, 2017Publication date: September 13, 2018Inventors: Chao-Jen HUANG, Ching-Ju LIN, Su-Hwan KIM
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Patent number: 9991715Abstract: A maximum power point tracking method is provided. The method includes the following steps. Perform a power conversion operation by a converter according to a duty cycle signal so as to convert an input power supplied by an energy harvester into an output power, wherein the converter includes an inductor, and a current flowing through the inductor increases in an energy-storing duration and decreases in an energy-releasing duration. Obtain a length of the energy-releasing duration. Adjust the duty cycle signal according to the length of the energy-releasing duration so as to track a maximum power point of the input power or the output power.Type: GrantFiled: March 9, 2017Date of Patent: June 5, 2018Assignees: Industrial Technology Research Institute, Intel CorporationInventors: Chao-Jen Huang, Ching-Ju Lin, Su-Hwan Kim
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Patent number: 9960337Abstract: A thermoelectric converter includes a battery box, an outer box and a connecting ring. The battery box has a bottom case, a battery disposed in the bottom case, a battery circuit board electrically connected to the battery, and an application circuit board disposed at one end of the bottom case. The outer box has a heat sink surrounding and covering the battery box, a thermoelectric module electrically connected to the battery circuit board with the thermoelectric module electrically connected to the battery through the battery circuit board, a heat conducting plate overlying the thermoelectric module and configured to conduct thermal energy from ambient environment to the thermoelectric module for the thermoelectric module to absorb the thermal energy and convert the thermal energy to electricity, and a non-metal adiabatic frame surrounding the thermoelectric module and configured to prevent the thermal energy from being dissipated to the ambient environment.Type: GrantFiled: September 19, 2016Date of Patent: May 1, 2018Assignee: Industrial Technology Research InstituteInventors: Chao-Jen Huang, Yuan-Hua Chu, Hung-Chang Chu, Pin-Chen Wang, Fang-Chih Chu
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Publication number: 20180047888Abstract: A thermoelectric converter includes a battery box, an outer box and a connecting ring. The battery box has a bottom case, a battery disposed in the bottom case, a battery circuit board electrically connected to the battery, and an application circuit board disposed at one end of the bottom case. The outer box has a heat sink surrounding and covering the battery box, a thermoelectric module electrically connected to the battery circuit board with the thermoelectric module electrically connected to the battery through the battery circuit board, a heat conducting plate overlying the thermoelectric module and configured to conduct thermal energy from ambient environment to the thermoelectric module for the thermoelectric module to absorb the thermal energy and convert the thermal energy to electricity, and a non-metal adiabatic frame surrounding the thermoelectric module and configured to prevent the thermal energy from being dissipated to the ambient environment.Type: ApplicationFiled: September 19, 2016Publication date: February 15, 2018Inventors: Chao-Jen HUANG, Yuan-Hua CHU, Hung-Chang CHU, Pin-Chen WANG, Fang-Chih CHU
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Patent number: 9829903Abstract: A power point tracking method and a power point tracking apparatus are provided. A power point tracking method, comprising obtaining, by a controller, a first operating point and a first characteristic curve according to an open-circuit voltage or an input voltage of an energy harvester; calculating, by the controller, a first duty cycle signal according to the first operating point, a converter characteristic, an output voltage and a desired operating point; operating, by a converter, after receiving the first duty cycle signal; obtaining, by the controller, a second characteristic curve by calculating a second operating point according to the input voltage, the output voltage and the first duty cycle signal; and calculating, by the controller, a second duty cycle signal for transferring to the converter for a tracking control according to the second characteristic curve, the converter characteristic, the output voltage and the desired operating point.Type: GrantFiled: November 14, 2016Date of Patent: November 28, 2017Assignee: Industrial Technology Research InstituteInventor: Chao-Jen Huang
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Patent number: 9239586Abstract: A leakage-current start-up reference circuit is provided which includes a reference circuit unit, a trigger unit, a leakage-current generator and a disable control unit. The trigger unit includes a first transistor. The drain terminal of the trigger unit is connected to a start-up terminal of the reference circuit unit. The leakage-current generator includes a second transistor which is a gate-drain-tied transistor. The disable control unit includes a third transistor. The gate terminal of the disable control unit is connected to a control terminal of the reference circuit unit. The drain terminal of the leakage-current generator, the gate terminal of the trigger unit and the drain terminal of the disable control unit are joined at a node. The reference circuit unit is started up by the trigger unit to generate a reference current. A leakage-current start-up reference circuit having a current mirror is also provided.Type: GrantFiled: May 23, 2014Date of Patent: January 19, 2016Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventor: Chao-Jen Huang
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Patent number: 9236797Abstract: A system includes: a first converter for receiving a pre-stage input DC voltage from a power source, and providing a pre-stage output DC voltage including a first DC voltage or a second DC voltage; a modulator the modulator controlling the first converter; a second converter, coupled to the first converter; and a controller, the controller controlling an operation mode of the second converter and notifying the modulator about the operation mode of the second converter. The modulator and the controller receive an external voltage indication signal indicating whether the pre-stage output DC voltage is the first DC voltage or the second DC voltage. The modulator controls the first converter to output the pre-stage output DC voltage based on the voltage indication signal. The modulator notifies the controller about whether the pre-stage output DC voltage reaches a target level.Type: GrantFiled: December 30, 2013Date of Patent: January 12, 2016Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Ke-Horng Chen, Chun-Yu Hsieh, Chih-Yu Yang, Chao-Jen Huang
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Patent number: 9166843Abstract: A digital pulse width generator and a method for generating a digital pulse width are provided. The method for generating a digital pulse width includes the following. Generating a first period according to first set of bits of pulse data. The first period includes an interval. First phase signals are set to a first logic value in the interval and are generated according to first phase clock signals after an end of the interval. Second phase signals are set to the first logic value in the first period and are generated according to second phase clock signals after an end of the first period. Selecting a first signal from the first phase signals and the second phase signals according to second set of bits of the pulse data as a pulse width signal.Type: GrantFiled: October 24, 2013Date of Patent: October 20, 2015Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chao-Jen Huang, Ya-Ting Chang, Ke-Horng Chen
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Patent number: 9065336Abstract: A maximum power point tracking (MPPT) apparatus and a MPPT method are disclosed. A converter uses an inductor therein to perform power conversion operations according to a gating signal so as to convert an input electrical energy into an output electrical energy to a load. A controller monitors the voltage difference of the inductor and the element temperature, performs a lookup table operation or calculates the element characteristic according to the element temperature, and further uses the element characteristic and the voltage difference of the inductor for calculating a characteristic value and correspondingly adjusts the gating signal according to the characteristic value so as to track the power of the input electrical energy.Type: GrantFiled: August 13, 2013Date of Patent: June 23, 2015Assignee: Industrial Technology Research InstituteInventors: Chao-Jen Huang, Fang-Chih Chu
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Publication number: 20150153758Abstract: A leakage-current start-up reference circuit is provided which includes a reference circuit unit, a trigger unit, a leakage-current generator and a disable control unit. The trigger unit includes a first transistor. The drain terminal of the trigger unit is connected to a start-up terminal of the reference circuit unit. The leakage-current generator includes a second transistor which is a gate-drain-tied transistor. The disable control unit includes a third transistor. The gate terminal of the disable control unit is connected to a control terminal of the reference circuit unit. The drain terminal of the leakage-current generator, the gate terminal of the trigger unit and the drain terminal of the disable control unit are joined at a node. The reference circuit unit is started up by the trigger unit to generate a reference current. A leakage-current start-up reference circuit having a current mirror is also provided.Type: ApplicationFiled: May 23, 2014Publication date: June 4, 2015Applicant: Industrial Technology Research InstituteInventor: Chao-Jen HUANG
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Patent number: 9000748Abstract: A maximum power point tracking controller, suitable for controlling an output voltage of a power converter is provided, including a slope detection unit and a control unit. The slope detection unit calculates whether the output voltage is in a positive trend or in a negative trend according to a detection signal corresponding to the output voltage in order to output a trend signal, in which the voltage level of the trend signal is a first voltage level or second voltage level when the output voltage is in the positive trend or negative trend. The control unit has first and second operation modes to respectively increase and decrease a duty cycle of a PWM signal, in which the control unit switches current operation mode to perform a maximum power point tracking procedure when the trend signal is changed from the first voltage level to the second voltage level.Type: GrantFiled: July 31, 2012Date of Patent: April 7, 2015Assignee: Industrial Technology Research InstituteInventors: Chao-Jen Huang, Chien-Chun Lu
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Publication number: 20150049799Abstract: A digital pulse width generator and a method for generating a digital pulse width are provided. The method for generating a digital pulse width includes the following. Generating a first period according to first set of bits of pulse data. The first period includes an interval. First phase signals are set to a first logic value in the interval and are generated according to first phase clock signals after an end of the interval. Second phase signals are set to the first logic value in the first period and are generated according to second phase clock signals after an end of the first period. Selecting a first signal from the first phase signals and the second phase signals according to second set of bits of the pulse data as a pulse width signal.Type: ApplicationFiled: October 24, 2013Publication date: February 19, 2015Applicant: Industrial Technology Research InstituteInventors: Chao-Jen HUANG, Ya-Ting CHANG, Ke-Horng CHEN
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Publication number: 20150002127Abstract: A maximum power point tracking (MPPT) apparatus and a MPPT method are disclosed. A converter uses an inductor therein to perform power conversion operations according to a gating signal so as to convert an input electrical energy into an output electrical energy to a load. A controller monitors the voltage difference of the inductor and the element temperature, performs a lookup table operation or calculates the element characteristic according to the element temperature, and further uses the element characteristic and the voltage difference of the inductor for calculating a characteristic value and correspondingly adjusts the gating signal according to the characteristic value so as to track the power of the input electrical energy.Type: ApplicationFiled: August 13, 2013Publication date: January 1, 2015Applicant: Industrial Technology Research InstituteInventors: Chao-Jen Huang, Fang-Chih Chu
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Publication number: 20140111103Abstract: A system includes: a first converter for receiving a pre-stage input DC voltage from a power source, and providing a pre-stage output DC voltage including a first DC voltage or a second DC voltage; a modulator the modulator controlling the first converter; a second converter, coupled to the first converter; and a controller, the controller controlling an operation mode of the second converter and notifying the modulator about the operation mode of the second converter. The modulator and the controller receive an external voltage indication signal indicating whether the pre-stage output DC voltage is the first DC voltage or the second DC voltage. The modulator controls the first converter to output the pre-stage output DC voltage based on the voltage indication signal. The modulator notifies the controller about whether the pre-stage output DC voltage reaches a target level.Type: ApplicationFiled: December 30, 2013Publication date: April 24, 2014Applicant: Industrial Technology Research InstituteInventors: Ke-Horng Chen, Chun-Yu Hsieh, Chih-Yu Yang, Chao-Jen Huang
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Publication number: 20130162046Abstract: A multi energy harvesting system is provided. The system includes: a DC energy source harvesting circuit, having a DC energy source harvesting unit for generating a DC based on a first physical quality, and a first DC to DC converter for adjusting voltage of the DC; an AC energy source harvesting circuit, having an AC energy source harvesting unit for generating an AC based on a second physical quality and a rectifier for rectifying the AC; and an assistance circuit, coupled between the DC energy source harvesting circuit and the AC energy source harvesting circuit, for increasing efficiency thereof.Type: ApplicationFiled: April 27, 2012Publication date: June 27, 2013Inventors: Chien-Chun Lu, Chao-Jen Huang, You-Wei Liang