Patent ID: 7433346
Filing Date: 2008-10-07
Classification: H01Q,H04B

Abstract:
1. A card device for high-speed wireless data communication, comprising: an antenna for transmitting and receiving a radio frequency (RF) signal; a RF signal converter for converting the RF signal received by said antenna into a baseband signal and converting an internal data signal into a RF signal; a mobile communication modem for outputting the internal data signal to said RF signal converter, receiving the baseband signal from said RF signal converter, checking whether a dual port random access memory (RAM) is accessible, and performing a data transmission/receiving operation with said dual port RAM when said dual port RAM is accessible; said dual port RAM having two ports respectively connected to said mobile communication modem and a PCMCIA (Personal Computer Memory Card International Association) interface, said dual port RAM interfacing a data transmission/receiving operation between said mobile communication modem and said PCMCIA interface and outputting an interrupt signal to said PCMCIA interface when an address being accessed by said mobile communication modem is accessed by said PCMCIA interface; and said PCMCIA interface being connected to an external apparatus according to a PCMCIA protocol, said PCMCIA interface checking whether said dual port RAM is accessible, and performing a data transmission/receiving operation with said dual port RAM when said dual port RAM is accessible; wherein said PCMCIA interface transmits address signals to said dual port RAM and checks whether said dual port RAM is accessible based on said dual port RAM outputting the interrupt signal.