Patent ID: 9665753
Date: 2017-05-30
CPC Classifications: B42D,G06K,H04B

Claim:
1. A non-contact communication method determination circuit, comprising: a determiner which determines whether or not a binary signal of a received radio signal was communicated with any of a plurality of first non-contact communication methods; and a falling edge detector to detect falling edges of the binary signal of the received radio signal and outputs a detection signal indicating detection of the falling edges to the determiner, wherein the determiner detects, based on the detection signal received from the falling edge detector, a time interval between the detected falling edges of the binary signal, and the determiner compares the detected time interval with a predetermined time interval between edges of a binary signal in the plurality of first non-contact communication methods, so as to determine whether or not the binary signal of the received radio signal was communicated with any of the plurality of first non-contact communication methods.