Wireless network device with a signal detection function and switching method for the same

Abstract

A wireless network device is provided for switching into a first functional mode and a second functional mode according to the source of received power. The wireless network device includes a wireless network communication module, a processor, a power module, and a voltage regulator. The wireless network communication module is utilized for transceiving wireless network signal, and the processor is connected to the wireless network communication module. The power module selectively receives a power from one of a battery and a computer. The voltage regulator is connected to the processor, for selectively switching into the first functional mode when receiving the power form the battery, or switching into the second functional mode when receiving the power from the computer.

1 . A wireless network device provided with a first functional mode and a second functional mode, comprising:
 a wireless network communication module for transceiving a wireless network signal;   a processor connected to the wireless network communication module;   a power module for selectively receiving a power from one of a battery and a computer; and   a voltage regulator connected to the processor, for selectively switching into the first functional mode when receiving the power form the battery, or switching into the second functional mode when receiving the power from the computer.   
   
   
       2 . The wireless network device according to  claim 1 , wherein the first functional mode is a wireless network signal detection mode. 
   
   
       3 . The wireless network device according to  claim 2 , further comprising:
 a detection module connected to the wireless network communication module, for detection wireless network signals.   
   
   
       4 . The wireless network device according to  claim 2 , further comprising:
 a network signal detection switch for starting the wireless network signal detection mode.   
   
   
       5 . The wireless network device according to  claim 2 , further comprising:
 an indication unit connected to the processor, for showing detection result of the detection module.   
   
   
       6 . The wireless network device according to  claim 1 , wherein the second functional mode is a wireless NIC mode. 
   
   
       7 . The wireless network device according to  claim 6 , further comprising:
 a wireless network detection software, which is executed in the wireless NIC mode.   
   
   
       8 . A method of switching functions of a wireless network device with a first functional mode and a second functional mode, comprising steps of:
 starting the wireless network device;   receiving a power from one of a battery and a computer; and   switching the wireless network device into the first functional mode when receiving the power from the battery, and switching the wireless network device into the second functional mode when receiving the power from the computer.   
   
   
       9 . The method according to  claim 8 , wherein the first functional mode is a wireless network signal detection mode. 
   
   
       10 . The method according to  claim 9 , wherein the step of switching into the wireless network signal detection mode further comprises:
 detecting a feedback packet;   receiving the feedback packet;   processing the feedback packet to generate a detection result.   
   
   
       11 . The method according to  claim 8 , wherein the second functional mode is a wireless NIC mode. 
   
   
       12 . The method according to  claim 11 , wherein the step of switching into the wireless NIC mode further comprises:
 executing a wireless network detection software.