Patent ID: 8379617

Claim:
A communication system comprising: a communication device; and a wired communication device connected to the communication device by a first connecting line and a second connecting line; the communication device including: (a) a first processor; (b) a first memory device storing first instructions, which when executed by the first processor cause the first processor to: (i) output a clock; (ii) generate a resulting modulated signal by performing amplitude shift keying modulation on the clock using a modulation subject signal to be sent to the wired communication device; (iii) output, via the first connecting line, the resulting modulated signal to the wired communication device; and (iv) communicate with a near field communication device that performs near field communication in at least one of an active mode and a passive mode, the near field communication device being different from the communication device and the wired communication device; the wired communication device including: (a) a second processor; (b) at least one of a subscriber identity module and a user identity module; and (c) a second memory device storing second instructions, which when executed by the second processor cause the second processor to: (i) extract the clock from the modulated signal sent from the first connecting line; (ii) extract the modulation subject signal from the modulated signal sent from the first connecting line; (iii) process the modulation subject signal in accordance with the extracted clock; and (iv) output, via the second connecting line, the processed modulation subject signal to the communication device.