Patents by Inventor Wilson Wai Sing Leung

Wilson Wai Sing Leung 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: 6064636
    Abstract: A multiple medium-storage disc changer (100) comprising a housing (110), a turntable (400) slidable out of and into the housing (110) and providing a circular series of inclined seats (401) for holding respective discs (501) in a tilted and overlapping arrangement. The disc changer (100) includes a movable playing mechanism (600) provided under the turntable (400) and comprising a spinning support (620) for lifting and supporting a disc (501) off the respective seat (401) and a laser head (622) for playing the supported disc (501). A separate holder (270) is provided which is movable to hold, from above, the disc (501) against the spinning support (620) for playing by the laser head (622).
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: May 16, 2000
    Assignee: Alco Electronics Ltd.
    Inventor: Wilson Wai Sing Leung
  • Patent number: 5699338
    Abstract: A compact disc drive includes a casing (11) having a front slot, a tray for supporting a compact disc, the tray being slidable in and out through the slot, and an internal playing mechanism for reading data recorded on a compact disc supported by the tray. A spring is used to resiliently urge the tray out. A spring-loaded latch is provided for holding the tray closed against the action of the spring, automatically, when the tray is pushed closed.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: December 16, 1997
    Assignee: Alco Electronics Ltd.
    Inventor: Wilson Wai Sing Leung