Patents by Inventor Hsi-Hsien CHEN

Hsi-Hsien CHEN 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: 20190181163
    Abstract: A thin film transistor and a method of fabricating the same are provided. The thin film transistor includes a channel layer, a source, a drain, an insulating layer and a gate. The channel layer is disposed on a substrate. The source and the drain are disposed separately on the channel layer. The insulating layer covers the source, the drain and the channel layer. The gate is disposed on the insulating layer, wherein two opposite sidewalls of the channel layer are respectively aligned to a sidewall of the source distant to the drain and a sidewall of the drain distant to the source. The thin film transistor of the invention improves the precision of alignment in the fabricating process, such that the film transistor has an excellent quality.
    Type: Application
    Filed: February 13, 2018
    Publication date: June 13, 2019
    Applicant: Chunghwa Picture Tubes, LTD.
    Inventors: Hsi-Ming Chang, Yu-Hsien Chen, Yen-Yu Huang
  • Publication number: 20190068138
    Abstract: The present invention provides a vacuum tube audio amplifier which includes an audio pre-amplifying portion and an audio output transforming portion. The audio pre-amplifying portion includes an equalizer for enhanced sound quality and amplifies an audio signal, which is subsequently transmitted to the audio output transforming portion. Furthermore, the audio output transforming portion includes an audio output transformer which includes a plurality of stacked E-shaped silicon steel sheets and a plurality of stacked I-shaped silicon steel sheets, wherein the stacked E-shaped silicon steel sheets and the stacked I-shaped silicon steel sheets have a same height which is smaller than or equal to 48 mm.
    Type: Application
    Filed: August 31, 2017
    Publication date: February 28, 2019
    Inventor: Hsi-Hsien CHEN
  • Patent number: 10218320
    Abstract: The present invention provides a vacuum tube audio amplifier which includes an audio pre-amplifying portion and an audio output transforming portion. The audio pre-amplifying portion includes an equalizer for enhanced sound quality and amplifies an audio signal, which is subsequently transmitted to the audio output transforming portion. Furthermore, the audio output transforming portion includes an audio output transformer which includes a plurality of stacked E-shaped silicon steel sheets and a plurality of stacked I-shaped silicon steel sheets, wherein the stacked E-shaped silicon steel sheets and the stacked I-shaped silicon steel sheets have a same height which is smaller than or equal to 48 mm.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: February 26, 2019
    Assignee: ECHOWELL ELECTRONICS CO., LTD.
    Inventor: Hsi-Hsien Chen
  • Patent number: 10135402
    Abstract: The invention provides a grounding structure and a grounding method for a vacuum tube audio amplifier, the grounding structure and the grounding method including: with respect to a power source, utilizing a power circuit without a choke, an anti-coupling circuit, and a filament voltage regulator circuit; and with respect to the grounding method, utilizing an negative output terminal of an audio output transforming circuit or a negative terminal of a filter capacitor in the power circuit as a single ground terminal of the vacuum tube audio amplifier, and not arranging a grounding metal bottom plate therein, in order to achieve a compact, lightweight desktop model of a vacuum tube audio amplifier.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: November 20, 2018
    Assignee: ECHOWELL ELECTRONICS CO., LTD.
    Inventor: Hsi-Hsien Chen
  • Patent number: 10021642
    Abstract: A timing control method for a user equipment (UE) in a wireless communications system, including: obtaining a starting time of a data transmission period from information of a data transmission timing received from a base station of a wireless network; obtaining a starting time of a current data processing period; and adjusting a data processing timing so that the adjusted starting time of the current data processing period is ahead of the starting time of the data transmission period by a predetermined time.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: July 10, 2018
    Assignee: MEDIATEK INC.
    Inventors: Hsi-Hsien Chen, Fu-Shing Ju, Chih-Ping Lin, Tsung-Cheng Yang, Tsung-Huan Cheng, Ming-Fong Jhang
  • Publication number: 20160105849
    Abstract: A timing control method for a user equipment (UE) in a wireless communications system, including: obtaining a starting time of a data transmission period from information of a data transmission timing received from a base station of a wireless network; obtaining a starting time of a current data processing period; and adjusting a data processing timing so that the adjusted starting time of the current data processing period is ahead of the starting time of the data transmission period by a predetermined time.
    Type: Application
    Filed: August 19, 2015
    Publication date: April 14, 2016
    Inventors: Hsi-Hsien CHEN, Fu-Shing JU, Chih-Ping LIN, Tsung-Cheng YANG, Tsung-Huan CHENG, Ming-Fong JHANG