| 摘要 |
The wireless Internet telephony adapter is an electric device that allows any wireless telephone, which is analog and standard to be connected to the computer while a user has established a voice conversation session of the PC to PC or PC to telephone-type through the Internet, thereby enabling the user to have mobility upon talking. The device is characterized in that it comprises a hybrid system which main purpose is to generate the interface of the 2-wires-circuit of the wireless telephone with the 4-wires circuit of a computer card (2 wires of the speaker and 2 wires of the microphone), thereby minimizing and cancelling the voice echo resulting from the decoupling action of impedances between the both means, and/or the signal leakage upon transmitting or receiving said signal in the same pair of telephonic wires of the wireless telephone device, the aforesaid is achieved while a voice conversation by the Internet is carried out.
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