Patents by Inventor Chao-Wei Tsai

Chao-Wei Tsai 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).

  • Patent number: 11934027
    Abstract: 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: Grant
    Filed: June 21, 2022
    Date of Patent: March 19, 2024
    Assignee: 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: 11921307
    Abstract: The present disclosure provides an optical element driving mechanism, which includes a movable part, a fixed assembly, and a driving assembly. The movable part is configured to be connected to an 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 movable part includes a connecting assembly configured to position the optical element.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: March 5, 2024
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Hsi Wang, Chao-Chang Hu, Chih-Wei Weng, Kuen-Wang Tsai, Tzu-Ying Chen
  • Publication number: 20240069299
    Abstract: An optical element driving mechanism includes a movable assembly, a fixed assembly, and a driving assembly. The movable assembly is configured to be connected to an optical element. 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 in a range of motion. The optical element driving mechanism further includes a positioning assembly configured to position the movable assembly at a predetermined position relative to the fixed assembly when the driving assembly is not operating.
    Type: Application
    Filed: November 9, 2023
    Publication date: February 29, 2024
    Inventors: Chao-Chang HU, Kuen-Wang TSAI, Liang-Ting HO, Chao-Hsi WANG, Chih-Wei WENG, He-Ling CHANG, Che-Wei CHANG, Sheng-Zong CHEN, Ko-Lun CHAO, Min-Hsiu TSAI, Shu-Shan CHEN, Jungsuck RYOO, Mao-Kuo HSU, Guan-Yu SU
  • Publication number: 20240071954
    Abstract: A memory device including a base semiconductor die, conductive terminals, memory dies, an insulating encapsulation and a buffer cap is provided. The conductive terminals are disposed on a first surface of the base semiconductor die. The memory dies are stacked over a second surface of the base semiconductor die, and the second surface of the base semiconductor die is opposite to the first surface of the base semiconductor die. The insulating encapsulation is disposed on the second surface of the base semiconductor die and laterally encapsulates the memory dies. The buffer cap covers the first surface of the base semiconductor die, sidewalls of the base semiconductor die and sidewalls of the insulating encapsulation. A package structure including the above-mentioned memory device is also provided.
    Type: Application
    Filed: November 9, 2023
    Publication date: February 29, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kai-Ming Chiang, Chao-wei Li, Wei-Lun Tsai, Chia-Min Lin, Yi-Da Tsai, Sheng-Feng Weng, Yu-Hao Chen, Sheng-Hsiang Chiu, Chih-Wei Lin, Ching-Hua Hsieh
  • Publication number: 20240071953
    Abstract: A memory device including a base semiconductor die, conductive terminals, memory dies, an insulating encapsulation and a buffer cap is provided. The conductive terminals are disposed on a first surface of the base semiconductor die. The memory dies are stacked over a second surface of the base semiconductor die, and the second surface of the base semiconductor die is opposite to the first surface of the base semiconductor die. The insulating encapsulation is disposed on the second surface of the base semiconductor die and laterally encapsulates the memory dies. The buffer cap covers the first surface of the base semiconductor die, sidewalls of the base semiconductor die and sidewalls of the insulating encapsulation. A package structure including the above- mentioned memory device is also provided.
    Type: Application
    Filed: November 6, 2023
    Publication date: February 29, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kai-Ming Chiang, Chao-wei Li, Wei-Lun Tsai, Chia-Min Lin, Yi-Da Tsai, Sheng-Feng Weng, Yu-Hao Chen, Sheng-Hsiang Chiu, Chih-Wei Lin, Ching-Hua Hsieh
  • Publication number: 20230072631
    Abstract: The present invention relates to a method for correcting bias introduced by weighted training in machine learning, the method comprises the following steps: S1. label the number of examples of each class in the weighted data used by the machine learning classifier: sum up the total number of training examples Ni from class in the training set, where i can be any of the class labels; S2. calculate the mean weight of examples in each class: in class i of the training data, sum up the weights wij of each example j, then divide by Ni, and label the mean weight wi of this class i; S3. the features of the examples in the weighted data and their corresponding labels are used for classification and regression with a machine learning algorithm; S4. when the classifier calculates probabilities Pw(i) of class i, and correct them by applying the deweighting formula in the deweighter to get accurate probabilities P(i); S5. use the corrected probabilities P(i) to make a classification decision.
    Type: Application
    Filed: August 29, 2022
    Publication date: March 9, 2023
    Inventors: Sean Lake, Chao-Wei Tsai
  • Patent number: 9967942
    Abstract: A light emitting diode driving system includes an infrared ray burning device and a light emitting diode driving device. The light emitting diode driving device includes an infrared ray receiving unit, a signal transforming unit, a storage unit, a pulse width modulating unit and a diode driving unit. The infrared ray receiving unit receives a burning signal transmitted by the infrared ray burning device; the signal transforming unit transforms the burning signal into a current control command and transmits it to the storage unit. The signal transforming unit generates a current control signal in accordance with the current control command in the storage unit. The pulse width modulating unit generates a pulse width modulation output current control signal according to the current control signal. The diode driving unit drives the light emitting diode by the pulse width modulation output current control signal.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: May 8, 2018
    Assignee: CHICONY POWER TECHNOLOGY CO., LTD.
    Inventors: Chih-Hung Lin, Chao-Wei Tsai, Sung-Wei Wu, Chih-Hsien Chiang, Hung-Ta Shih
  • Patent number: 9844110
    Abstract: The current adjustment apparatus includes a communication interface, a current generating module, and a current adjustment module. The current generating module includes a microprocessor, a memory for storing a current setting parameter, and a current generating unit; the memory and the current generating unit are electrically connected to the microprocessor. When the current adjustment module is not physically connected to the current generating module, the microprocessor makes the current generating unit generate a driving current in response to the current setting parameter; when the current adjustment module is physically connected to the current generating module via the communication interface, the microprocessor makes the current generating unit generate the driving current in accordance with a setting signal from the current adjustment module, and the microprocessor further overwrites the current setting parameter in accordance with the setting signal when receives a writing signal.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: December 12, 2017
    Assignee: Chicony Power Technology Co., Ltd.
    Inventors: Chao-Wei Tsai, Chih-Hsien Chiang, Sung-Wei Wu, Chih-Hung Lin, Hung-Ta Shih
  • Publication number: 20150296581
    Abstract: A pulse width modulation control unit multiplies a value of a user side setting signal by a value of a dimming signal to obtain a pulse width modulation output current control signal. The pulse width modulation control unit sends the pulse width modulation output current control signal to a light emitting diode driving unit. The light emitting diode driving unit multiplies a value of the pulse width modulation output current control signal by a value of a maximum output current of the light emitting diode driving unit to obtain a light emitting diode pulse width modulation driving current. The light emitting diode driving unit drives a light emitting diode by the light emitting diode pulse width modulation driving current.
    Type: Application
    Filed: April 11, 2014
    Publication date: October 15, 2015
    Applicant: Chicony Power Technology Co., Ltd.
    Inventors: Chao-Wei TSAI, Jyun-Ping WANG, Hung-Ta SHIH
  • Patent number: 9161410
    Abstract: A pulse width modulation control unit multiplies a value of a user side setting signal by a value of a dimming signal to obtain a pulse width modulation output current control signal. The pulse width modulation control unit sends the pulse width modulation output current control signal to a light emitting diode driving unit. The light emitting diode driving unit multiplies a value of the pulse width modulation output current control signal by a value of a maximum output current of the light emitting diode driving unit to obtain a light emitting diode pulse width modulation driving current. The light emitting diode driving unit drives a light emitting diode by the light emitting diode pulse width modulation driving current.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: October 13, 2015
    Assignee: CHICONY POWER TECHNOLOGY CO., LTD.
    Inventors: Chao-Wei Tsai, Jyun-Ping Wang, Hung-Ta Shih
  • Publication number: 20130162339
    Abstract: A compensating device is used for providing current compensation of an IC when operating in the high-voltage. The current compensating device includes a detecting unit, a rectifier, a filtering unit and a switching unit. The detecting unit electrically connected to an AC voltage. The rectifier is electrically connected to the detecting unit. The filtering unit is electrically connected to the rectifier. The switching unit is electrically connected to the filtering unit. The switching unit is conducted and provides a current to the IC when the AC voltage is above a predetermined voltage.
    Type: Application
    Filed: December 24, 2011
    Publication date: June 27, 2013
    Inventors: Chao-Wei TSAI, Chia-Chieh LIN
  • Patent number: 8461908
    Abstract: A compensating device is used for providing current compensation of an IC when operating in the high-voltage. The current compensating device includes a detecting unit, a rectifier, a filtering unit and a switching unit. The detecting unit electrically connected to an AC voltage. The rectifier is electrically connected to the detecting unit. The filtering unit is electrically connected to the rectifier. The switching unit is electrically connected to the filtering unit. The switching unit is conducted and provides a current to the IC when the AC voltage is above a predetermined voltage.
    Type: Grant
    Filed: December 24, 2011
    Date of Patent: June 11, 2013
    Assignee: Chicony Power Technology Co., Ltd.
    Inventors: Chao-Wei Tsai, Chia-Chieh Lin
  • Patent number: 8378592
    Abstract: The configurations of an end of lamp life protection circuit for a ballast and a method thereof are provided in the present invention. The proposed circuit includes a voltage-dividing circuit receiving an input voltage and outputting a first and a second divided voltages and a switch apparatus raising the first divided voltage when the second divided voltage is less than a first pre-determined threshold value and turning off the ballast when the first divided voltage is higher than a second pre-determined threshold value.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: February 19, 2013
    Assignee: Delta Electronics, Inc.
    Inventors: Ching-Ho Chou, Yung-Chuan Lu, Edy Chandra, Chao-Wei Tsai
  • Publication number: 20110156592
    Abstract: The configurations of an end of lamp life protection circuit for a ballast and a method thereof are provided in the present invention. The proposed circuit includes a voltage-dividing circuit receiving an input voltage and outputting a first and a second divided voltages and a switch apparatus raising the first divided voltage when the second divided voltage is less than a first pre-determined threshold value and turning off the ballast when the first divided voltage is higher than a second pre-determined threshold value.
    Type: Application
    Filed: December 29, 2010
    Publication date: June 30, 2011
    Applicant: Delta Electronics, Inc.
    Inventors: Ching-Ho Chou, Yung-Chuan Lu, Edy Chandra, Chao-Wei Tsai