Patent ID: 7278032
Filing Date: 2007-10-02
Classification: G06F,H02J,Y02D

Abstract:
1. A circuit for integrated interface of PDA and wireless communication system, suitable for integrating a PDA and a wireless communication system, the circuit for an integrated interface of the PDA and the wireless communication system comprising: a first serial port, having two terminals, wherein one terminal is electrically connected to the PDA, the other terminal is electrically connected to the wireless communication system, and the first serial port is used to transmit a control signal between the PDA and the wireless communication system; a second serial port, having two terminals, wherein one terminal is electrically connected to the PDA, the other terminal is electrically connected to the wireless communication system, and the second serial port is used to transmit a digital data between the PDA and the wireless communication system; a PDA-turn-on-wireless-communication-system signal line, having two terminals, wherein one terminal is electrically connected to the PDA, the other terminal is electrically connected to the wireless communication system, the PDA-turn-on-wireless-communication-system signal line is used to have the PDA turn on the wireless communication system; a PDA-reset-wireless-communication-system signal line, having two terminals, wherein one terminal is electrically connected to the PDA, the other terminal is electrically connected to the wireless communication system, and the PDA-reset-wireless-communication-system signal line is used to have the PDA reset the wireless communication system; a PDA-state signal line, having two terminals, wherein one terminal is electrically connected to the PDA, the other terminal is electrically connected to the wireless communication system, the PDA-state signal line is used to transmit the status of the PDA to the wireless communication system; a wireless-communication-system-state/wake-up-PDA signal line, having two terminals, wherein one terminal is electrically connected to the PDA, the other terminal is electrically connected to the wireless communication system, the wireless-communication-system-state/wake-up-PDA signal line is used to transmit the status of the wireless communication system to the PDA; and a power system, providing a power to the PDA and the wireless communication system respectively, and providing a power-shortage signal to the PDA and the wireless communication system when the power is insufficient.