Patents by Inventor C. T. Chang

C. T. Chang 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: 20100026917
    Abstract: An automatic darkening and glare reducing liquid crystal mirror for vehicles is disclosed. The mirror has a front substrate (101) of transparent glass or plastic and a back substrate (109) of glass or plastic with a highly reflective or transflective mirrored coating (108). The front and back substrates are spaced apart a small distance to define a liquid crystal cell between the substrates and a liquid crystal fluid (106) incorporating dichroic dyes is contained within the liquid crystal cell. A conductive thin film (102) is applied onto the interior surface of the front substrate and the reflective or transflective coating (108) of the back substrate also is conductive. An alignment compound is deposited on the conductive thin film (102) and on the reflective or transflective coating (108) and the alignment compound bounds the liquid crystal cell.
    Type: Application
    Filed: December 23, 2008
    Publication date: February 4, 2010
    Inventors: Walter Y. Wen, Robin Hines, C.T. Chang
  • Publication number: 20030129944
    Abstract: A system and method of monitoring and controlling operation and performance of a remote device or system implement a wireless interface and standardized wireless communication protocols in monitor and control applications. In one embodiment, a system and method of monitoring and controlling a remote device through a wireless interface are operative in accordance with Bluetooth(™) protocol architecture.
    Type: Application
    Filed: December 21, 2001
    Publication date: July 10, 2003
    Inventors: Matthew C. T. Chang, James W. Frederick
  • Publication number: 20030120367
    Abstract: A system and method of logging audio signal data implement a data buffer and a non-volatile data storage medium. Acquired audio data may be stored in the buffer temporarily, for example, until a threshold amount or volume of data has accumulated in the buffer. Buffered audio and other data may be written to the nonvolatile storage medium in large blocks, minimizing the number of write operations to the non-volatile storage medium. System or process diagnostics may be performed based upon analysis of the acquired audio signal data. Additionally, monitored audio signal data may be employed for real-time process or system control.
    Type: Application
    Filed: December 21, 2001
    Publication date: June 26, 2003
    Inventors: Matthew C.T. Chang, James W. Frederick, Ken Johnson
  • Publication number: 20030120841
    Abstract: A system and method of data logging implement a data buffer and a non-volatile data storage medium. Acquired data may be stored in the buffer temporarily until a threshold amount or volume of data has accumulated in the buffer. Buffered data may then be written to the non-volatile storage medium in large blocks, minimizing the number of write operations experienced by the non-volatile storage medium.
    Type: Application
    Filed: December 21, 2001
    Publication date: June 26, 2003
    Inventors: Matthew C.T. Chang, James W. Frederick, Ken Johnson
  • Patent number: 5931209
    Abstract: A locking extension for a tool table includes first and second rails slidingly mounted to opposing sides of the tool table and an extension having a support surface fixedly mounted to and spanning the first and second rails. A locking assembly for locking both of the rails to the tool table at a desired position includes a first linkage member having an axis and being longitudinally movable relative to the axis by a pair of cooperating cam blocks. A second linkage member is biased and is operably connected to the first linkage member by a pivot member. The linkage members each have a rail engaging element mounted to an end thereof that is engagable with its respective rail to lock the rails into the desired position and disenageable with its respective rail to unlock the rails from the desired position. The locking assembly includes an actuator operably connected to one of the cam blocks for moving the locking assembly between the locked and unlocked states.
    Type: Grant
    Filed: August 24, 1998
    Date of Patent: August 3, 1999
    Assignee: P & F Brother Industrial Corp.
    Inventor: Paul C. T. Chang
  • Patent number: 5774941
    Abstract: The invention disclosed a two-head one-cubican drawing system provided with two sets of drafting mechanisms and two coilers. A cubic can is used to receive slivers from two coilers so as to decrease the space occupied by the system and facilitate the arrangement of automatic transportation. Through the control of driving mechanisms by transverse devices, evener drawing frames, and rollers the system can have two slivers equally formed in the cubic can.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: July 7, 1998
    Assignee: China Textile Institute
    Inventors: C. T. Huang, C. T. Chang, C. C. Huang, Sheng-Fu Chiu, H. H. Chiou
  • Patent number: 5108048
    Abstract: A quickly releasable stowage bin 108 mountable on one or more support panels 110, 110', or 110", affixed to the interior of an aircraft 100. In the installation of a single stowage bin 108, quickly releasable mounting mechanisms 146, and 158, 160, and 168, respectively affix the upper and lower portion of the stowage bin 108 to the upper and lower portion of a support panel or panels. Each support panel 110, 110', and 110" are initially aligned in the factory whereby a conversion of the aircraft 100 from freighter mode to full or partial passenger mode, results in a rapid, easy, secure, and quality installation of each stowage bin 108. The quickly releasable mounting mechanisms 146, and 158, 160, and 168, also facilitate the rapid and easy removal of each stowage bin 108 from within a compartment of the aircraft 100 during conversion of that compartment from passenger mode to freighter mode.
    Type: Grant
    Filed: September 15, 1989
    Date of Patent: April 28, 1992
    Assignee: The Boeing Company
    Inventor: Charles C. T. Chang