Patents by Inventor Yit Chow Tong

Yit Chow Tong 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).

  • Universal self-attaching inductive coupling unit for connecting hearing instrument to peripheral electronic devices
    Patent number: 6157728
    Abstract: An inductive coupling unit which can be easily attached to any hearing instrument with an internal receiving coil to connect the instrument to peripheral electronic devices. The coupling unit includes a head including a head cover, a bobbin disposed inside the head cover, a transmitting coil which is wrapped around the bobbin, and a cylindrical magnet placed in the center of the bobbin. An end of a conductive cable is connected to the transmitting coil and the other end is connected to a plug which makes electrical connection with a peripheral device. The coupling unit is placed on the outer surface of the hearing instrument, and the signals from the peripheral device are induced in the receiving coil of the hearing instrument by the transmitting coil to provide clear, high fidelity transmission.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: December 5, 2000
    Assignee: Multitech Products (PTE) Ltd.
    Inventors: Yit Chow Tong, Joseph Sylvester Chang