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Data processing terminal system and transmitting and receiving method using the same

  • US 8,489,014 B2
  • Filed: 01/18/2012
  • Issued: 07/16/2013
  • Est. Priority Date: 04/01/2003
  • Status: Active Grant
First Claim
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1. An information processing terminal system comprising:

  • an information processing terminal; and

    a transmitting and receiving unit which can be attached to or detached from said information processing terminal,wherein said transmitting and receiving unit comprises;

    a transmission and reception processing section;

    which is a high frequency processing unit;

    a demodulation section;

    a modulation section; and

    a baseband processing section,when said transmitting and receiving unit is attached to said information processing terminal, said transmission and reception processing section outputs a reception modulation wave signal from a network to said demodulation section and transmits a transmission modulation wave signal from said modulation section to the network,said demodulation section converts the reception modulation wave signal from said transmission and reception processing section into a reception analog baseband signal,said baseband processing section converts the reception analog baseband signal into a reception digital signal to output to said information processing terminal, and converts a transmission digital signal from said information processing terminal into a transmission analog baseband signal,said modulation section converts the transmission analog baseband signal into the transmission modulation wave signal,said baseband processing section and said information processing terminal operate in synchronization with a clock, andthe reception digital signal contains a reception data, and the transmission digital signal contains a transmission data.

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