Patents by Inventor Cheng Kuo Liu

Cheng Kuo Liu 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: 10498310
    Abstract: A protective cover for an acoustic wave device and a fabrication method thereof, for protecting an acoustic wave device having a resonant area during a packaging operation so as to avoid molding compound flowing onto the resonant area of the acoustic wave device. The fabrication method comprises: defining a sacrificial area on the acoustic wave device; forming a sacrificial layer on the sacrificial area; covering a metal covering layer on the sacrificial layer and connecting a bottom rim of the metal covering layer to the acoustic wave device and forming an opening between the bottom rim of the metal covering layer and the acoustic wave device; and removing the sacrificial layer to form a cavity between the metal covering layer and the resonant area by using a chemical solution, wherein the chemical solution enters from the opening between the metal covering layer and the acoustic wave device.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: December 3, 2019
    Assignee: WIN SEMICONDUCTORS CORP.
    Inventors: Cheng-Kuo Lin, Shu-Hsiao Tsai, Rong-Hao Syu, Yi-Ling Liu, Re-Ching Lin, Pei-Chun Liao
  • Patent number: 10458643
    Abstract: A breathing light assembly of an air purifier includes a front panel, a cover, a breathing light, a body cover, and a reflective strip. The cover includes a light transmission panel and a curved surface and is mounted to the front panel. The breathing light is mounted to the curved surface and faces the light transmission panel. The body cover cooperatively defines an optical channel with the cover. A surface of the body cover includes a light emitting zone within the optical channel. The light emitting zone faces the breathing light across the optical channel. Light emitted by the breathing light passes through the light transmission panel to the light emitting zone. The reflective strip is mounted on the light emitting zone and positioned at an end of the optical channel. The reflective strip reflects the light emitted by the breathing light.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: October 29, 2019
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Cheng-Kuo Liu, Chun-Kai Peng
  • Publication number: 20040015615
    Abstract: A method for performing data transfer of keyboard-video-mouse (KVM) switch, especially referring to a method that can make the KVM switch transmit data to or receive data from multiple computers simultaneously. The method includes steps as: storing peripheral data ready for transfer in data registers; setting transmit flag register (Tx flag) and receive flag register; transferring (Rx flag) a bit of the peripheral data from each of the data registers to each of the data pins during a clock cycle at each of the I/O ports corresponding to the Tx flag set; receiving a bit of control data from each of the data pin and storing the bit of said control data to each of the data register during the clock cycle at each of the I/O ports corresponding to the Rx flag set. Thereby, the method can transmit data to or receive data from multiple computers simultaneously.
    Type: Application
    Filed: July 15, 2003
    Publication date: January 22, 2004
    Inventor: Cheng Kuo Liu
  • Patent number: 6520346
    Abstract: A modularized structure for industrial rack comprises at least a fixing frame with two brackets, an operative module, a supporting horizontal bar, an optional function module, two sliding grooves arranged on outer side of the two brackets; and two sliding members slidable in respective sliding grooves. The bracket is provided with a sliding rail and has a lug fixed to the industrial rack, whereby the modularized structure can be adapted for industrial racks of different sizes.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: February 18, 2003
    Inventor: Cheng Kuo Liu
  • Publication number: 20030019822
    Abstract: A modularized structure for industrial rack comprises at least a fixing frame with two brackets, an operative module, a supporting horizontal bar, an optional function module, two sliding grooves arranged on outer side of the two brackets; and two sliding members slidable in respective sliding grooves. The bracket is provided with a sliding rail and has a lug fixed to the industrial rack, whereby the modularized structure can be adapted for industrial racks of different sizes.
    Type: Application
    Filed: July 24, 2001
    Publication date: January 30, 2003
    Inventor: Cheng Kuo Liu
  • Patent number: 6511139
    Abstract: A modularized industrial console includes a fixing frame, an operative module, a supporting horizontal bar, an optional function module, two sliding blocks, and two sliding grooves. The fixing frame is retained on an industrial rack and assembled with the supporting horizontal bar and the two sliding grooves. The operative module is arranged on a front side of the assembled fixing frames and the optional function module is arranged on a rear side of the assembled fixing frames. With the help of switch functions of KVM (keyboard, video and mouse), the modularized industrial console prevents undue purchase and stockage.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: January 28, 2003
    Inventor: Cheng Kuo Liu
  • Publication number: 20020190613
    Abstract: A modularized industrial console comprises a fixing frame, an operative module, a supporting horizontal bar, an optional function module, two sliding blocks, and two sliding grooves. The fixing frame is retained on an industrial rack and assembled with the supporting horizontal bar and the two sliding grooves. The operative module is arranged on front side of the assembled fixing frames and the optional function module is arranged on rear side of the assembled fixing frames. With the help of switch functions of KVM (keyboard, video and mouse), the modularized industrial console prevents undue purchase and stockage.
    Type: Application
    Filed: June 13, 2001
    Publication date: December 19, 2002
    Inventor: Cheng Kuo Liu
  • Patent number: 6442031
    Abstract: A retaining structure for industrial console comprises at least two sliding rails and two sliding plates slidably arranged on both sides of two brackets such that the brackets can be adapted to fit industrial rack of various sizes. The two brackets are further assembled with a supporting horizontal bar and two sliding grooves such that an operative module and an optional function module can be detachably arranged on both sides of the brackets. The assembling and detaching of the inventive retaining structure is very easy and flexible.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: August 27, 2002
    Inventor: Cheng Kuo Liu