Patents by Inventor Jun Jae Yoo

Jun Jae Yoo 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).

  • Multi-band ZigBee transceiver supporting IEEE 802.15.4 wireless communication
    Patent number: 7260360
    Abstract: Disclosed herein is a multi-band ZigBee transceiver for supporting IEEE 802.15.4 wireless communications. In the multi-band ZigBee transceiver, a Multi-Mode Modem (MMM) selects any one of a European version standard using 860 MHz band, a US version standard using 920 MHz band, and a worldwide version standard using 2.4 GHz ISM band among IEEE 802.15.4 standards. A frequency synthesizing unit variably adjusts a carrier frequency according to the transmission standard. A transmission unit receives a digital modulated signal, low-pass-filters the digital modulated signal with a bandwidth thereof being variably adjusted, and up-converts the filtered digital modulated signal into an RF modulated signal corresponding to the selected transmission channel.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: August 21, 2007
    Assignee: Korea Electronics Technology Institute
    Inventors: Hae Moon Seo, Kwang Ho Won, Young Kuk Park, Myung Hyun Yoon, Jun Jae Yoo