Wireless modem with supplemental power source

摘要

A wireless modem is provided with a passive power source by taking its power from more than one PCMCIA slot of a mobile computer system. One of the slots 203B is used by a first PCMCIA adapter 205 that provides for baseband signal processing and power signals to a transceiver device. A second PCMCIA adapter card 207 supplements the power signals provided by the first PCMCIA adapter card to the transceiver 209. The second PCMCIA adapter card 207 occupies a second PCMCIA slot 203A and includes interface logic providing a memory-type card interface. The second PCMCIA adapter card supplements the power signals provided by the first PCMCIA card, permitting the transceiver to draw more current than that available from just the first PCMCIA card. The transceiver and PCMCIA cards may be interconnected by either a Y cable or a three connector housing. May also be used with an IR transceiver or an RF transceiver in a cellular phone.