Patents by Inventor Chung-Chieh Cheng
Chung-Chieh 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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Patent number: 11964881Abstract: A method for making iridium oxide nanoparticles includes dissolving an iridium salt to obtain a salt-containing solution, mixing a complexing agent with the salt-containing solution to obtain a blend solution, and adding an oxidating agent to the blend solution to obtain a product mixture. A molar ratio of a complexing compound of the complexing agent to the iridium salt is controlled in a predetermined range so as to permit the product mixture to include iridium oxide nanoparticles.Type: GrantFiled: July 27, 2020Date of Patent: April 23, 2024Assignee: NATIONAL YANG MING CHIAO TUNG UNIVERSITYInventors: Pu-Wei Wu, Yi-Chieh Hsieh, Han-Yi Wang, Kuang-Chih Tso, Tzu-Ying Chan, Chung-Kai Chang, Chi-Shih Chen, Yu-Ting Cheng
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Publication number: 20240107414Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for switching a secondary cell to a primary cell. A user equipment (UE) monitors a first radio condition of the UE for beams of a primary cell and a second radio condition for beams of one or more secondary cells configured for the UE in carrier aggregation. The UE transmits a request to configure a candidate beam of at least one candidate secondary cell as a new primary cell in response to the first radio condition not satisfying a first threshold and the second radio condition for the at least one candidate secondary cell satisfying a second threshold. A base station determines to reconfigure at least one secondary cell as the new primary cell. The base station and the UE perform a handover of the UE to the new primary cell.Type: ApplicationFiled: September 23, 2022Publication date: March 28, 2024Inventors: Yu-Chieh HUANG, Kuhn-Chang LIN, Jen-Chun CHANG, Wen-Hsin HSIA, Chia-Jou LU, Sheng-Chih WANG, Chenghsin LIN, Yeong Leong CHOO, Chun-Hsiang CHIU, Chihhung HSIEH, Kai-Chun CHENG, Chung Wei LIN
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Publication number: 20240014744Abstract: A method of controlling a resonant push-pull converter is disclosed. The resonant push-pull converter includes a transformer, a first switch, a second switch, a resonant tank, and a rectifying circuit. The method includes a step of a fixed on-time control. In the fixed on-time control, a first control signal with a fixed on-time is used to control the first switch, and a second control signal with the fixed on-time is used to control the second switch so that the first switch and the second switch are alternately switched.Type: ApplicationFiled: January 11, 2023Publication date: January 11, 2024Inventors: Yung-Sheng YAN, Chung-Chieh CHENG, Cheng-Ting CHOU, Kun-Jang KUO, Sheh-Jung WEN
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Publication number: 20230058284Abstract: This disclosure is directed to an electronic device having a casing, a circular frame, and a display. A panel is arranged on one side of the casing, a circular opening is defined on the panel, and a first fixing structure is arranged on an inner edge of the circular opening. The circular frame is rotatably arranged in the circular opening to close the circular opening, a second fixing structure is arranged on an outer edge of the circular frame, and the second fixing structure is limited by the first fixing structure. The display is embedded in the circular frame and exposed on the panel, so that the display is rotatable according to various placing positions of the casing.Type: ApplicationFiled: January 3, 2022Publication date: February 23, 2023Inventors: Chia-Yuan LIN, Chih-Yuan HSU, Chung-Chieh CHENG
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Patent number: 11509321Abstract: The present invention provides a receiving circuit, wherein the receiving circuit includes a first ADC, an attenuator, a second ADC, a harmonic generation circuit and an output circuit. In the operations of the receiving circuit, the first ADC performs an analog-to-digital operation on an analog input signal to generate a first digital output signal, the attenuator reduces strength of the analog input signal to generate an attenuated analog input signal, the second ADC performs the analog-to-digital operation on the attenuated analog input signal to generate a second digital input signal, the harmonic generation circuit generates at least one harmonic signal according to the second digital input signal, and the output circuit deletes a harmonic component of the first digital input signal by using the at least one harmonic signal to generate an output signal.Type: GrantFiled: December 17, 2020Date of Patent: November 22, 2022Assignee: Realtek Semiconductor Corp.Inventors: Chung-Chieh Cheng, Yi-Chang Tu
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Publication number: 20210203336Abstract: The present invention provides a receiving circuit, wherein the receiving circuit includes a first ADC, an attenuator, a second ADC, a harmonic generation circuit and an output circuit. In the operations of the receiving circuit, the first ADC performs an analog-to-digital operation on an analog input signal to generate a first digital output signal, the attenuator reduces strength of the analog input signal to generate an attenuated analog input signal, the second ADC performs the analog-to-digital operation on the attenuated analog input signal to generate a second digital input signal, the harmonic generation circuit generates at least one harmonic signal according to the second digital input signal, and the output circuit deletes a harmonic component of the first digital input signal by using the at least one harmonic signal to generate an output signal.Type: ApplicationFiled: December 17, 2020Publication date: July 1, 2021Inventors: Chung-Chieh Cheng, Yi-Chang Tu
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Patent number: 10998759Abstract: An uninterruptible power supply with DC output includes an AC-to-DC conversion circuit coupled to an AC power source for outputting a first DC power source, a charging and discharging module for outputting a second DC power source, at least one power module coupled to the AC-to-DC conversion circuit and the charging and discharging module, a user operation interface disposed between the at least one power module and at least one load, and the user operation interface includes at least one operation unit, the power required for each load is selected by each operation unit so that at least one power module uninterruptedly supplies power to each load.Type: GrantFiled: June 4, 2019Date of Patent: May 4, 2021Assignee: Delta Electronics, Inc.Inventor: Chung-Chieh Cheng
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Patent number: 10992152Abstract: An uninterruptible power supply includes a switching unit, a charging unit, an energy storage unit, a conversion unit, and a control unit. When an input power source is available, the switching unit provides a first output power source and the charging unit converts the input power source into a first power source to provide the first power source to the control unit and to charge the energy storage unit. When the input power source is not available, the conversion unit converts the electricity of the energy storage unit into a second output power source and provides the second output power source. When the input power source is not available, the conversion unit provides a second power source to the charging unit so that the charging unit converts the second power source into the first power source and provides the first power source to the control unit.Type: GrantFiled: January 2, 2019Date of Patent: April 27, 2021Assignee: DELTA ELECTRONICS, INC.Inventors: Chung-Chieh Cheng, Yung-Sheng Yan, Chao-Chin Huang
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Patent number: 10923608Abstract: A conductive paste for a solar cell, a solar cell and a manufacturing method thereof, and a solar cell module are provided. The conductive paste for a solar cell includes a silver powder, a glass, an organic vehicle, and a tellurium alloy compound, wherein the tellurium alloy compound has a melting point at least 300° C. higher than the softening point of the glass.Type: GrantFiled: March 30, 2018Date of Patent: February 16, 2021Assignee: GIGA SOLAR MATERIALS CORP.Inventors: Chih-Hsien Yeh, Pi-Yu Hsin, Chung-Chieh Cheng, Yu-Shuo Yang
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Patent number: 10763794Abstract: Disclosed is a harmonic compensation device capable of effectively reducing the harmonic distortion of an analog output signal. The harmonic compensation device includes a harmonic compensator, a mixer, a digital-to-analog converter, and an analog output circuit. The harmonic compensator is configured to generate a digital compensation signal according to a digital input signal, in which the digital compensation signal includes the harmonic components of the digital input signal. The mixer is configured to generate a digital output signal according to the digital input signal and the digital compensation signal. The digital-to-analog converter is configured to generate an analog input signal according to the digital output signal. The analog output circuit is configured to generate an analog output signal according to the analog input signal.Type: GrantFiled: July 2, 2019Date of Patent: September 1, 2020Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventors: Chung-Chieh Cheng, Yi-Chang Tu
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Publication number: 20200251925Abstract: An uninterruptible power supply with DC output includes an AC-to-DC conversion circuit coupled to an AC power source for outputting a first DC power source, a charging and discharging module for outputting a second DC power source, at least one power module coupled to the AC-to-DC conversion circuit and the charging and discharging module, a user operation interface disposed between the at least one power module and at least one load, and the user operation interface includes at least one operation unit, the power required for each load is selected by each operation unit so that at least one power module uninterruptedly supplies power to each load.Type: ApplicationFiled: June 4, 2019Publication date: August 6, 2020Inventor: Chung-Chieh CHENG
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Publication number: 20200144972Abstract: Disclosed is a harmonic compensation device capable of effectively reducing the harmonic distortion of an analog output signal. The harmonic compensation device includes a harmonic compensator, a mixer, a digital-to-analog converter, and an analog output circuit. The harmonic compensator is configured to generate a digital compensation signal according to a digital input signal, in which the digital compensation signal includes the harmonic components of the digital input signal. The mixer is configured to generate a digital output signal according to the digital input signal and the digital compensation signal. The digital-to-analog converter is configured to generate an analog input signal according to the digital output signal. The analog output circuit is configured to generate an analog output signal according to the analog input signal.Type: ApplicationFiled: July 2, 2019Publication date: May 7, 2020Inventors: CHUNG-CHIEH CHENG, YI-CHANG TU
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Patent number: 10630185Abstract: A power delivery device and a control method are shown. The power delivery device includes a power factor correction circuit, and an output voltage control circuit. The power factor correction circuit is configured to increase a power factor of the power delivery device. The output voltage control circuit is configured to control an output voltage of the power delivery device, and detect an output current of the power delivery device. The power factor correction circuit is uncontrolled by the output voltage control circuit in response to a first load state of the power delivery device, and is controlled by the output voltage control circuit in response to a second load state of the power delivery device.Type: GrantFiled: June 27, 2018Date of Patent: April 21, 2020Assignee: DELTA ELECTRONICS, INC.Inventors: Kun-Chi Lin, Chung-Chieh Cheng, Kun-Jang Kuo, Tien-He Chen, Shou-Chieh Lin
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Patent number: 10615637Abstract: An uninterruptible power supply apparatus includes a switch, a first inductor, a direct current controlling unit, a first bridge arm, a second bridge arm and a third bridge arm. When the switch switches the first inductor coupled to an alternative current (AC) power, the AC power converts into a bus voltage via the first inductor, the first bridge arm and the second bridge arm, and converts into an output power via the second bridge arm and the third bridge arm. When the switch switches the first inductor coupled to a DC power, the DC power converts into the bus voltage via the DC controlling unit and the first inductor, and converts into the output power via the second bridge arm and the third bridge arm.Type: GrantFiled: September 25, 2018Date of Patent: April 7, 2020Assignee: DELTA ELECTRONICS, INC.Inventors: Chung-Chieh Cheng, Yung-Sheng Yan
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Publication number: 20200067339Abstract: An uninterruptible power supply includes a switching unit, a charging unit, an energy storage unit, a conversion unit, and a control unit. When an input power source is available, the switching unit provides a first output power source and the charging unit converts the input power source into a first power source to provide the first power source to the control unit and to charge the energy storage unit. When the input power source is not available, the conversion unit converts the electricity of the energy storage unit into a second output power source and provides the second output power source. When the input power source is not available, the conversion unit provides a second power source to the charging unit so that the charging unit converts the second power source into the first power source and provides the first power source to the control unit.Type: ApplicationFiled: January 2, 2019Publication date: February 27, 2020Inventors: Chung-Chieh CHENG, Yung-Sheng YAN, Chao-Chin HUANG
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Publication number: 20190199126Abstract: An uninterruptible power supply apparatus includes a switch, a first inductor, a direct current controlling unit, a first bridge arm, a second bridge arm and a third bridge arm. When the switch switches the first inductor coupled to an alternative current (AC) power, the AC power converts into a bus voltage via the first inductor, the first bridge arm and the second bridge arm, and converts into an output power via the second bridge arm and the third bridge arm. When the switch switches the first inductor coupled to a DC power, the DC power converts into the bus voltage via the DC controlling unit and the first inductor, and converts into the output power via the second bridge arm and the third bridge arm.Type: ApplicationFiled: September 25, 2018Publication date: June 27, 2019Inventors: Chung-Chieh CHENG, Yung-Sheng YAN
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Patent number: 10170925Abstract: An intelligent uninterruptible power charging apparatus includes an uninterruptible power module, a charging module, and an output port. The uninterruptible power module provides a first charging power source. The charging module converts the first charging power source into a second charging power source and outputs the second charging power source through the output port. When an electronic apparatus is connected to the output port, the charging module receives an identification signal outputted from the electronic apparatus and adjusts a voltage level of the second charging power source according to the identification signal.Type: GrantFiled: July 5, 2017Date of Patent: January 1, 2019Assignee: DELTA ELECTRONICS, INC.Inventors: Chung-Chieh Cheng, Kun-Jang Kuo
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Publication number: 20180323715Abstract: A power delivery device and a control method are shown. The power delivery device includes a power factor correction circuit, and an output voltage control circuit. The power factor correction circuit is configured to increase a power factor of the power delivery device. The output voltage control circuit is configured to control an output voltage of the power delivery device, and detect an output current of the power delivery device. The power factor correction circuit is uncontrolled by the output voltage control circuit in response to a first load state of the power delivery device, and is controlled by the output voltage control circuit in response to a second load state of the power delivery device.Type: ApplicationFiled: June 27, 2018Publication date: November 8, 2018Inventors: Kun-Chi LIN, Chung-Chieh CHENG, Kun-Jang KUO, Tien-He CHEN, Shou-Chieh LIN
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Patent number: D867650Type: GrantFiled: October 26, 2017Date of Patent: November 19, 2019Assignee: DELTA ELECTRONICS, INC.Inventors: Chung-Chieh Cheng, Kun-Ming Tien, Ying-Hao Huang, Wei-Ting Chien, Yen-Jyh Lai
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Patent number: D869738Type: GrantFiled: October 26, 2017Date of Patent: December 10, 2019Assignee: DELTA ELECTRONICS, INC.Inventors: Chung-Chieh Cheng, Kun-Ming Tien, Ying-Hao Huang, Wei-Ting Chien, Yen-Jyh Lai