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Technical Examples
A high-speed wireless data communication card device for simultaneous data/voice communications is provided. The card device includes a wireless LAN module for performing data communication over a wireless LAN, the wireless LAN module including a first PCMCIA interface, a CDMA module for performing wireless data communication over a mobile communication network, the CDMA module including a serial communicator and a universal interface bus, and a second PCMCIA interface for interfacing with an external apparatus according to a PCMCIA protocol, a signal converter for converting a format of data outputted from the CDMA module into a PCMCIA format and the PCMCIA format of input data of the CDMA module into a serial bus format, respectively, a switch for transferring CDMA data of the signal converter or wireless LAN data of the wireless LAN module to the second PCMCIA interface, a controller for controlling an operation of the switch in response to a switching control signal of the second PCMCIA interface, an ear-microphone connected to the CDMA module for transmitting and receiving voice data, an antenna connected to the CDMA module and wireless LAN module for transmitting and receiving a RF signal, and a filter for filtering RF signals received by the antenna to be processed in the CDMA module and wireless LAN module.