Optical disc and remote control device

Abstract

The objective of the present invention is to provide an optical disc which solves the problem that search for data recorded on an exchange-type medium such as an optical disc and the like and which allows search for data recorded in an optical disc to be performed with a simple operation. A transmitting/receiving antenna 231 is provided in an inner peripheral portion of an optical disc. An IC module 201 connected with transmission/reception IC 230 including ID information is formed and embedded into a substrate the optical disc. Thus, an optical disc incorporating an IC module which can be produced on a mass-production basis can be achieved.

1 - 3 . (canceled) 
     
     
         4 . A wireless communication system comprising a device having an IC for transmitting/receiving radio waves and a remote control device for wirelessly communicating with the device having the IC,
 wherein the IC includes:
 a receiving section for receiving the radio waves; 
 a detection section for detecting the received radio waves and outputting electric power and a first signal; 
 a power accumulation section for accumulating the electric power output from the detection section; 
 an ID information storage section for storing ID information for identifying the device having the IC; 
 a signal generation section for outputting, in response to the first signal output from the detection section, a second signal including the ID information using the electric power accumulated in the power accumulation section; and 
 a transmitting section for transmitting the second signal output from the signal generation section, 
   wherein the remote control device includes:
 a transmitting section for transmitting radio waves including the first signal to the device having the IC; 
 a receiving section for receiving the second signal from the device having the IC; and 
 an ID reproduction section for reproducing the ID information based on the second signal received by the receiving section. 
   
     
     
         5 . A wireless communication system according to  claim 4 , wherein:
 the device having the IC further includes a modulation section and a time adjustment section,   the modulation section generates a modulation signal including the ID information,   the time adjustment section delays the modulation signal by an amount of time depending on a time constant.