Patents by Inventor Eun Chan Choi

Eun Chan Choi 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).

  • Apparatus and Method for Providing Hands-Free and Lcd Display Function of Mobile Communication Terminal Using Zigbee
    Publication number: 20080188181
    Abstract: The hands-free function provision apparatus for use in the mobile communication terminal using the ZigBee protocol includes: a mobile communication terminal for performing transmission/reception of a voice signal via a base station; a ZigBee coordinator for transmitting or receiving a predetermined display signal and a call control signal for establishing a call connection state to/from the mobile communication terminal, modulating or demodulating the predetermined display signal, the call control signal, and the voice signal using the ZigBee protocol; and a ZigBee device for performing wireless transmission/reception with the ZigBee coordinator by modulating or demodulating the predetermined display signal, the call control signal, and the voice signal using the ZigBee protocol, and visually providing the predetermined display signal.
    Type: Application
    Filed: November 8, 2005
    Publication date: August 7, 2008
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Eun Chan Choi, Jae Doo Huh, Kwang Roh Park, Sun Ho Min