Patents by Inventor Chia-Chang Wu
Chia-Chang 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).
-
Publication number: 20240151935Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, and a driving assembly. The movable portion is used to connect the optical element. The movable portion may move relative to the fixed portion. The driving assembly is used to drive the movable portion to move relative to the fixed portion.Type: ApplicationFiled: March 8, 2023Publication date: May 9, 2024Inventors: Hsiao-Hsin HU, Chih-Wen CHIANG, Chia-Che WU, Yu-Chiao LO, Yi-Ho CHEN, Chao-Chang HU, Sin-Jhong SONG
-
Publication number: 20240151936Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, and a driving assembly. The movable portion is used to connect the optical element. The movable portion may move relative to the fixed portion. The driving assembly is used to drive the movable portion to move relative to the fixed portion.Type: ApplicationFiled: March 27, 2023Publication date: May 9, 2024Inventors: Hsiao-Hsin HU, Chih-Wen CHIANG, Chia-Che WU, Yu-Chiao LO, Yi-Ho CHEN, Chao-Chang HU, Sin-Jhong SONG
-
Publication number: 20240155234Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, and a driving assembly. The movable portion is used to connect the optical element. The movable portion may move relative to the fixed portion. The driving assembly is used to drive the movable portion to move relative to the fixed portion.Type: ApplicationFiled: March 27, 2023Publication date: May 9, 2024Inventors: Hsiao-Hsin HU, Chih-Wen CHIANG, Chia-Che WU, Yu-Chiao LO, Yi-Ho CHEN, Chao-Chang HU, Sin-Jhong SONG
-
Publication number: 20240152029Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, and a driving assembly. The movable portion is used to connect the optical element. The movable portion may move relative to the fixed portion. The driving assembly is used to drive the movable portion to move relative to the fixed portion.Type: ApplicationFiled: November 2, 2023Publication date: May 9, 2024Inventors: Hsiao-Hsin HU, Chih-Wen CHIANG, Chia-Che WU, Yu-Chiao LO, Yi-Ho CHEN, Chao-Chang HU, Sin-Jhong SONG
-
Publication number: 20240151932Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, and a driving assembly. The movable portion is used to connect the optical element. The movable portion may move relative to the fixed portion. The driving assembly is used to drive the movable portion to move relative to the fixed portion.Type: ApplicationFiled: March 28, 2023Publication date: May 9, 2024Inventors: Hsiao-Hsin HU, Chih-Wen CHIANG, Chia-Che WU, Yu-Chiao LO, Yi-Ho CHEN, Chao-Chang HU, Sin-Jhong SONG
-
Publication number: 20240142747Abstract: An optical element driving mechanism is for accommodating a first optical element and includes a fixed assembly, a movable part and a driving assembly. The movable part is configured to connect a second optical element, the second optical element corresponds to the first optical element, and the movable part is movable relative to the fixed assembly. The driving assembly is configured to drive the movable part to move relative to the fixed assembly. The fixed assembly includes a first accommodating space configured to accommodate the first optical element.Type: ApplicationFiled: October 26, 2023Publication date: May 2, 2024Inventors: Chia-Che WU, Chao-Chang HU, Yu-Chiao LO
-
Publication number: 20240142854Abstract: An optical element driving mechanism is for accommodating a first optical element and includes a fixed assembly, a movable part and a driving assembly. The movable part is configured to connect a second optical element, the second optical element corresponds to the first optical element, and the movable part is movable relative to the fixed assembly. The driving assembly is configured to drive the movable part to move relative to the fixed assembly. The fixed assembly includes a first accommodating space configured to accommodate the first optical element.Type: ApplicationFiled: October 26, 2023Publication date: May 2, 2024Inventors: Chia-Che WU, Chao-Chang HU, Yu-Chiao LO
-
Publication number: 20240142855Abstract: An optical element driving mechanism is for accommodating a first optical element and includes a fixed assembly, a movable assembly and a driving assembly. The movable assembly is configured to connect a second optical element, the second optical element corresponds to the first optical element, and the movable assembly is movable relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move relative to the fixed assembly. The fixed assembly includes a first accommodating space configured to accommodate the first optical element.Type: ApplicationFiled: October 27, 2023Publication date: May 2, 2024Inventors: Chia-Che WU, Chao-Chang HU, Yu-Chiao LO
-
Publication number: 20240142746Abstract: An optical element driving mechanism is for accommodating a first optical element and includes a fixed assembly, a movable part and a driving assembly. The movable part is configured to connect a second optical element, the second optical element corresponds to the first optical element, and the movable part is movable relative to the fixed assembly. The driving assembly is configured to drive the movable part to move relative to the fixed assembly. The fixed assembly includes a first accommodating space configured to accommodate the first optical element.Type: ApplicationFiled: October 26, 2023Publication date: May 2, 2024Inventors: Chia-Che WU, Chao-Chang HU, Yu-Chiao LO
-
Publication number: 20240142858Abstract: An optical element driving mechanism is used for accommodating a first optical element and includes a fixed assembly, a movable part and a driving assembly. The movable part is configured to connect a second optical element. The second optical element corresponds to the first optical element. The movable part is movable relative to the fixed assembly. The driving assembly is configured to drive the movable part to move relative to the fixed assembly. The fixed assembly includes a first accommodating space configured to accommodate the first optical element.Type: ApplicationFiled: October 27, 2023Publication date: May 2, 2024Inventors: Chia-Che WU, Chao-Chang HU, Yu-Chiao LO
-
Publication number: 20240128876Abstract: A switching control circuit for use in controlling a resonant flyback power converter generates a first driving signal and a second driving signal. The first driving signal is configured to turn on the first transistor to generate a first current to magnetize a transformer and charge a resonant capacitor. The transformer and charge a resonant capacitor are connected in series. The second driving signal is configured to turn on the second transistor to generate a second current to discharge the resonant capacitor. During a power-on period of the resonant flyback power converter, the second driving signal includes a plurality of short-pulses configured to turn on the second transistor for discharging the resonant capacitor. A pulse-width of the short-pulses of the second driving signal is short to an extent that the second current does not exceed a current limit threshold.Type: ApplicationFiled: June 15, 2023Publication date: April 18, 2024Inventors: Yu-Chang Chen, Ta-Yung Yang, Kun-Yu Lin, Fu-Ciao Syu, Chia-Hsien Yang, Hsin-Yi Wu
-
Publication number: 20240120844Abstract: A resonant flyback power converter includes: a first and a second transistors which form a half-bridge circuit for switching a transformer and a resonant capacitor to generate an output voltage; a current-sense device for sensing a switching current of the half-bridge circuit to generate a current-sense signal; and a switching control circuit generating a first and a second driving signals for controlling the first and the second transistors. The turn-on of the first driving signal controls the half-bridge circuit to generate a positive current to magnetize the transformer and charge the resonant capacitor. The turn-on of the second driving signal controls the half-bridge circuit to generate a negative current to discharge the resonant capacitor. The switching control circuit turns off the first transistor when the positive current exceeds a positive-over-current threshold, and/or, turns off the second transistor when the negative current exceeds a negative-over-current threshold.Type: ApplicationFiled: April 10, 2023Publication date: April 11, 2024Inventors: Kun-Yu LIN, Ta-Yung YANG, Yu-Chang CHEN, Hsin-Yi WU, Fu-Ciao SYU, Chia-Hsien YANG
-
Patent number: 11949376Abstract: A VCO (voltage-controlled oscillator) includes: a resonant tank having a parallel connection of an inductor, a fixed capacitor, a variable capacitor, a first temperature compensating capacitor, and a second temperature compensating capacitor across a first node and a second node, and configured to establish an oscillation of a first oscillatory voltage at the first node and a second oscillatory voltage at the second node; and a regenerative network placed across the first node and the second node to provide energy to sustain the oscillation. The variable capacitor is controlled by a control voltage, the first temperature compensating capacitor is controlled by a first temperature tracking voltage of a positive temperature coefficient, and the second temperature compensating capacitor is controlled by a second temperature tracking voltage of a negative temperature coefficient.Type: GrantFiled: November 9, 2021Date of Patent: April 2, 2024Assignee: REALTEK SEMICONDUCTOR CORP.Inventors: I-Chang Wu, Chia-Liang (Leon) Lin
-
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
-
Patent number: 10046609Abstract: A writer for a tire pressure sensor is disclosed, which is adapted to hold the tire pressure sensor to write a program to the tire pressure sensor. The tire pressure sensor has a first connection port. The writer includes a housing, a positioning member, and an ejection device. A surface of the housing forms a receiving recess, and a second connection port is provided in the receiving recess. When the tire pressure sensor is received in the receiving recess, the first connection port thereof is connected to the second connection port. The positioning member connected to the housing has a block section abutting against the tire pressure sensor to keep the first connection port being connected to the second connection port. The ejection device is adapted to exert a pushing force on the tire pressure sensor to eject it for separating the second connection port from the first connection port.Type: GrantFiled: September 23, 2016Date of Patent: August 14, 2018Assignee: MOBILETRON ELECTRONICS CO., LTD.Inventors: Ming-Hung Hsu, Chia-Chang Wu
-
Publication number: 20170100970Abstract: A writer for a tire pressure sensor is disclosed, which is adapted to hold the tire pressure sensor to write a program to the tire pressure sensor. The tire pressure sensor has a first connection port. The writer includes a housing, a positioning member, and an ejection device. A surface of the housing forms a receiving recess, and a second connection port is provided in the receiving recess. When the tire pressure sensor is received in the receiving recess, the first connection port thereof is connected to the second connection port. The positioning member connected to the housing has a block section abutting against the tire pressure sensor to keep the first connection port being connected to the second connection port. The ejection device is adapted to exert a pushing force on the tire pressure sensor to eject it for separating the second connection port from the first connection port.Type: ApplicationFiled: September 23, 2016Publication date: April 13, 2017Inventors: Ming-Hung HSU, Chia-Chang WU
-
Patent number: 6836406Abstract: Disclosed is an automated disk-ejection apparatus for use in a disk system. The disk system includes a disk box for housing a disk drive, and the auto-ejection apparatus comprises: a handle for pulling out or pushing back the disk box; a pushing mechanism for pushing the handle; and a control circuit for controlling the pushing mechanism. The featured disk apparatus is designed such that while the disk box needs to be pulled out in order for loading or replacing the disk drive, the pushing mechanism is activated to push the handle. The handle can thus be rotated along the pivot into an inoperative state, for subsequently to be pulled for withdrawing the disk box. Moreover, another embodiment of the present invention relates to using a pushing mechanism to push a rotatable panel of a disk box.Type: GrantFiled: July 16, 2001Date of Patent: December 28, 2004Assignee: Acard Technology CorporationInventors: Mao-Huai Weng, Chia-Chang Wu, Po-Yao Chen, Deryi Wu, Ping-Hua Lien
-
Publication number: 20040136078Abstract: A light capture device includes a base plate mainly has a proper number of base holes disposed on a top plane thereon; a convex enclosing rib or concave slot is disposed on the peripheral side of the base hole; a diaphanous bead is disposed respectively on the front side of the base hole; a base support layer fills among the diaphanous beads with a certain thickness at the upper aspect of the base plate; opposite the diaphanous beads, a contact plane of the base support layer forms as a base bowl with an arcuate recess to assist the holding of the diaphanous bead such that the light ray emitted from the rear aspect of the base plate penetrates the base hole, projects into the diaphanous beads and toward the outside.Type: ApplicationFiled: January 10, 2003Publication date: July 15, 2004Inventors: Ho-Yuan Shueh, Chia-Chang Wu
-
Publication number: 20020089821Abstract: Disclosed is an automated disk-ejection apparatus for use in a disk system. The disk system includes a disk box for housing a disk drive, and the auto-ejection apparatus comprises: a handle for pulling out or pushing back the disk box; a pushing mechanism for pushing the handle; and a control circuit for controlling the pushing mechanism. The featured disk apparatus is designed such that while the disk box needs to be pulled out in order for loading or replacing the disk drive, the pushing mechanism is activated to push the handle. The handle can thus be rotated along the pivot into an inoperative state, for subsequently to be pulled for withdrawing the disk box. Moreover, another embodiment of the present invention relates to using a pushing mechanism to push a rotatable panel of a disk box.Type: ApplicationFiled: July 16, 2001Publication date: July 11, 2002Applicant: ACARD TECHNOLOGY CORPORATIONInventors: Mao-Huai Weng, Chia-Chang Wu, Po-Yao Chen, Deryi Wu, Ping-Hua Lien