Add-on card for wireless communication with power-managing...

Electrical computers and digital processing systems: support – Computer power control – Power conservation

Reexamination Certificate

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Details

C713S340000, C455S127100, C455S128000, C455S557000, C343S703000, C343S767000, C363S035000

Reexamination Certificate

active

06931554

ABSTRACT:
An add-on card for a personal digital assistant (PDA) for wireless communication includes a connector for connecting to the PDA, a power managing circuit connected to the connector for storing a first current supplied from the connector, and a radio-frequency (RF) circuit for transmitting an RF signal corresponding to a signal from the connector or transmitting a signal to the PDA via the connector according to a received RF signal. The power managing circuit is electrically connected to the RF circuit. When the RF circuit transmits the RF signal, the power managing circuit will provide a second current to the RF circuit.

REFERENCES:
patent: 5590419 (1996-12-01), Shimo
patent: 5896574 (1999-04-01), Bass, Sr.
patent: 6581837 (2003-06-01), Hattersley
patent: 6705520 (2004-03-01), Pitroda et al.
patent: 6707867 (2004-03-01), Diepstraten et al.
patent: 6745937 (2004-06-01), Walsh et al.
patent: 6762725 (2004-07-01), Beard et al.

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