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    • 5. 发明申请
    • Wireless USB modem device supporting dual service for portable internet and digital broadcasting
    • 无线USB调制解调器设备支持便携式互联网和数字广播的双重服务
    • US20090172759A1
    • 2009-07-02
    • US12077549
    • 2008-03-20
    • Jung-Hoon Jung
    • Jung-Hoon Jung
    • H04N7/173
    • H04N21/6181H04N7/17309H04N21/4143H04N21/4183H04N21/6112
    • The present invention relates to a wireless USB modem device supporting dual service for portable Internet and digital broadcasting. The wireless USB modem device includes a portable Internet communication module and a digital broadcast reception module. The wireless USB modem device includes a USB hub connected to USB interfaces of both the portable Internet communication module and the digital broadcast reception module, and configured to relay data to a user terminal. A switching mode power supply unit is implemented in a DC-DC switching mode, is supplied with power from the user terminal and is configured to apply power to the portable Internet communication module and the digital broadcast reception module so that the portable Internet communication module and the digital broadcast reception module can be simultaneously driven. Accordingly, a separate control unit for controlling USB interfaces is not required, and the number of peripherals connected to the USB port of the portable user terminal can be reduced. Further, portable Internet service and digital broadcasting service can be simultaneously provided, thus enabling bidirectional digital multimedia broadcasting service and Internet service to be simultaneously supported anytime and anywhere without regard to spatial or temporal restrictions.
    • 本发明涉及支持便携式因特网和数字广播的双重业务的无线USB调制解调器装置。 无线USB调制解调器装置包括便携式因特网通信模块和数字广播接收模块。 无线USB调制解调器装置包括连接到便携式因特网通信模块和数字广播接收模块的USB接口的USB集线器,并且被配置为将数据中继到用户终端。 开关模式电源单元以DC-DC切换模式实现,由用户终端提供电力,并被配置为向便携式因特网通信模块和数字广播接收模块施加电力,使得便携式因特网通信模块和 可以同时驱动数字广播接收模块。 因此,不需要用于控制USB接口的单独的控制单元,并且可以减少连接到便携式用户终端的USB端口的外围设备的数量。 此外,可以同时提供便携式因特网服务和数字广播服务,从而使得双向数字多媒体广播服务和因特网服务能够随时随地地被同时支持,而不考虑空间或时间限制。