Patents by Inventor Geung Dug Jang

Geung Dug Jang 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: 6519444
    Abstract: An audio-visual education system using movable toys is disclosed. The system includes a multichannel radio transmitter mounted on a stereo output terminal of a sound signal regenerative apparatus, the radio transmitter separates sound signals, call signals, and movement control signals corresponding to specific movable toys and radio transmitting each of the signals. The moveable toys move their mouth, hands, feet, or body. A radio receiver is mounted in each movable toy. The radio receiver receives signals from the radio transmitter and controls the sound and movement of the relevant portion of the movable toy according to the received signals. A speaker is mounted in each movable toy for outputting the sound signal received from the radio receiver.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: February 11, 2003
    Inventor: Geung Dug Jang