Patent ID: 8045648

Claim:
An amplitude-shift-keying radio frequency (ASK RF) signal decoding method, comprising: separating a low frequency signal and a high frequency signal from the ASK RF signal including a pause section and a non-pause section; generating a divided signal by dividing the high frequency signal; counting the divided signal for the non-pause section of the low frequency signal; decoding the ASK RF signal based on a result of the counting; and generating decoded data, wherein when first decoding data is a first logic level, the step of generating the decoded data comprises: decoding second decoding data of the first logic level as data output next to the first decoding data when the result of the counting is smaller than a threshold value; and decoding third decoding data of a second logic level as the data output next to the first decoding data when the result of the counting is greater than the threshold value.