Patents by Inventor Yao-Jen Liang

Yao-Jen Liang 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: 20230255852
    Abstract: A permeable spraying device for making drug tablets mainly comprises a carrying platform, a spraying equipment, a flattening device and a control equipment, the carrying platform defines a powder dropping area and a flattened spraying area, and a moving device combined with the carrying platform is capable of moving vertically. The spraying equipment is mounted above the carrying platform, and the spraying equipment comprises a powder box, a colloid spraying equipment, a driving device and a placement platform. The placement platform is disposed with a plurality of supplementary colloid carriers. The flattening device is installed on the carrying platform and moves horizontally back and forth in the flattened spraying area. The control equipment is equipped with a storage unit and an execution control unit. A multi-layer drug body structure can be formed by deposition, stacking and bonding.
    Type: Application
    Filed: April 27, 2023
    Publication date: August 17, 2023
    Inventors: KUO-MING HUANG, YEN-SHU LIN, YEN-CHAO YANG, YAO-JEN LIANG
  • Publication number: 20210186817
    Abstract: A permeable spraying device for making drug tablets mainly comprises a carrying platform, a spraying equipment, a flattening device and a control equipment, the carrying platform defines a powder dropping area and a flattened spraying area, and a moving device combined with the carrying platform is capable of moving vertically. The spraying equipment is mounted above the carrying platform, and the spraying equipment comprises a powder box, a colloid spraying equipment, a driving device and a placement platform. The placement platform is disposed with a plurality of supplementary colloid carriers. The flattening device is installed on the carrying platform and moves horizontally back and forth in the flattened spraying area. The control equipment is equipped with a storage unit and an execution control unit. A multi-layer drug body structure can be formed by deposition, stacking and bonding.
    Type: Application
    Filed: December 15, 2020
    Publication date: June 24, 2021
    Inventors: Kuo-Ming HUANG, Yen-Shu LIN, Yen-Chao YANG, Yao-Jen LIANG
  • Patent number: 7345971
    Abstract: An optical disc drive includes a spindle motor, a control unit, and a detection device. The spindle motor is adapted for rotating an optical disc. The control unit controls rotation of the spindle motor. The detection device is coupled to and is controlled by the control unit to detect the rotation speed change rate of the spindle motor within a predetermined time period, to determine if the change rate detected thereby is smaller than a predetermined reference value, and to generate an output signal received by the control unit to indicate that the spindle motor has reached a state where the rotation speed thereof is stable when the change rate detected by the detection device is smaller than the predetermined reference value.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: March 18, 2008
    Assignee: Mediatek Inc.
    Inventors: Chao-Ming Huang, Yao-Jen Liang
  • Patent number: 6980500
    Abstract: An ATIP (absolute time in pre-groove) bit data generator free from an uneven duty cycle. The ATIP bit data generator includes an analog processor, a high-frequency clock generator, a first decoder, a sync pattern detector, and a second decoder. The analog processor receives a signal generated from an optical pickup, and further processes the signal to generate an ATIP FM signal. The high-frequency clock generator provides a high-frequency clock using the ATIP FM signal as a reference signal. The first decoder receives the ATIP FM signal and the high-frequency clock and generates bi-phase data. The sync pattern detector receives the bi-phase data and the high-frequency clock, and generates a sync indication signal. The second decoder counts the pulse number of the high-frequency clock for each counting cycle, and the counting cycle includes a plurality of half periods of the ATIP FM signal.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: December 27, 2005
    Assignee: Media Tek Inc.
    Inventors: Ping-Hsing Lu, Yao-Jen Liang, Chao-Long Tsai
  • Publication number: 20050172036
    Abstract: A multi-chip system has at least a host chip and at least a slave chip. The slave chip informs the host chip of data needed to be transmitted. When informed by the slave chip the host chip informs the slave chip to start to transmit the data, and when informed by the host chip the slave chip starts to transmit the data to the host chip.
    Type: Application
    Filed: May 13, 2004
    Publication date: August 4, 2005
    Inventors: Yao-Jen Liang, Ming-Yang Chao
  • Publication number: 20050111321
    Abstract: An optical disc drive includes a spindle motor, a control unit, and a detection device. The spindle motor is adapted for rotating an optical disc. The control unit controls rotation of the spindle motor. The detection device is coupled to and is controlled by the control unit to detect the rotation speed change rate of the spindle motor within a predetermined time period, to determine if the change rate detected thereby is smaller than a predetermined reference value, and to generate an output signal received by the control unit to indicate that the spindle motor has reached a state where the rotation speed thereof is stable when the change rate detected by the detection device is smaller than the predetermined reference value.
    Type: Application
    Filed: November 15, 2004
    Publication date: May 26, 2005
    Inventors: Chao-Ming Huang, Yao-Jen Liang
  • Publication number: 20030103428
    Abstract: An ATIP (absolute time in pre-groove) bit data generator free from an uneven duty cycle. The ATIP bit data generator includes an analog processor, a high-frequency clock generator, a first decoder, a sync pattern detector, and a second decoder. The analog processor receives a signal generated from an optical pickup, and further processes the signal to generate an ATIP FM signal. The high-frequency clock generator provides a high-frequency clock using the ATIP FM signal as a reference signal. The first decoder receives the ATIP FM signal and the high-frequency clock and generates bi-phase data. The sync pattern detector receives the bi-phase data and the high-frequency clock, and generates a sync indication signal. The second decoder counts the pulse number of the high-frequency clock for each counting cycle, and the counting cycle includes a plurality of half periods of the ATIP FM signal.
    Type: Application
    Filed: November 25, 2002
    Publication date: June 5, 2003
    Inventors: Ping-Hsing Lu, Yao-Jen Liang, Chao-Long Tsai