IC memory card type radio modem

Details IC memory card type radio modem IC memory card type radio modem

1995-06-22

1997-04-01

Chin, Stephen

Pulse or digital communications

Transceivers

Modems

379 60, 455 332, H04B 138, H04M 1100

Patent

active

056174497

ABSTRACT:
An IC memory card type radio modem includes a connecting portion, a radio section, a radio interface unit section, a channel selection circuit section, a terminal interface unit section, and a control section. The connecting portion can be connected to a PC card portion of a portable information processing device. The radio section is adaptable to at least one type of radio infrastructure. The radio interface unit section is adapted to the radio section. The channel selection circuit section is connected to the radio interface unit section. The terminal interface unit section is connected to the channel selection circuit section. The control section controls the plurality of radio sections. The radio interface unit section is controlled to always switch to a radio infrastructure which can perform communication.

REFERENCES:
patent: 5313211 (1994-05-01), Tokuda et al.

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