Signal detection method

A signal detection method for an electronic device comprising a first terminal receiving signals from a first source, a second terminal receiving signals from a second source, and a memory, comprising the following steps:

• assigning a first sequence index W1 to the first terminal and a second sequence index W2 to the second terminal;
• providing a first weighting number D1, a second weighting number D2 and a third weighting number D3 for the electronic device;
• adding the first weighting number D1 to the first sequence index W1 when the first terminal is connected to the first source and receives signals from the first source;
• adding the second weighting number D2 to the first sequence index W1 when the first terminal is connected to the first source but without receiving signal;
• adding the third weighting number D3 to the first sequence index W1 when the first terminal is not connected to the first source;
• adding the first weighting number D1 to the second sequence index W2 when the second terminal is connected to the second source and receives signals from the second source;
• adding the second weighting number D2 to the second sequence index W2 when the second terminal is connected to the second source but without receiving signal;
• adding the third weighting number D3 to the second sequence index W2 when the second terminal is not connected to the second source;
• and
• saving the first sequence index W1 and the second sequence index W2 to the memory,
• wherein when the electronic device turns off and on again, the electronic device detects the first terminal first if the first sequence index W1 is greater than the second sequence index W2, the electronic device detects the second terminal first if the first sequence index W1 is less than the second sequence index W2.

A signal detection method for an electronic device comprising a first terminal receiving signals from a first source, a second terminal receiving signals from a second source, and a memory, comprising the following steps:

• providing a first sequence index W1 for the first terminal and a second sequence index W2 for the second terminal;
• providing a first weighting number C1, a second weighting number C2, a third weighting number C3 and a fourth weighting number C4 for the electronic device;
• adding the first weighting number C1 to the first sequence index W1 when the first terminal receives signals from the first source;
• adding the second weighting number C2 to the first sequence index W1 when the first terminal but receives no signal;
• adding the third weighting number C3 to the second sequence index W2 when the second terminal receives signals from the second source;
• adding the fourth weighting number C4 to the second sequence index W2 when the second terminal but receives no signal, wherein C1>C2, C1>C4, C3>C2 and C3>C4;
• and
• saving the first sequence index W1 and the second sequence index W2 to the memory, wherein when the electronic device turns off and on again, the electronic device detects the first terminal first if the first sequence index W1 is greater than the second sequence index W2, the electronic device detects the second terminal first if the first sequence index W1 is less than the second sequence index W2.