Remote control system for electronic apparatus

Claim 1

Remote control system for electronic apparatus comprising: a communication line (1) for communicating plural electronic apparatus (104, 105, 106) to be controlled, a wireless signal transmitter (107) for transmitting a wireless signal including device information (16) for designating an electronic apparatus, command information (17) for operating said electronic apparatus and an operation information (120, 145) for distinguishing each operation of said wireless signal transmitter, electronic apparatus to be controlled by said information included in said wireless signal, comprising: wireless signal receiver means (13) for receiving said wireless signal and determining the wireless signal for designating its own electronic apparatus on the basis of said device information (16), device control means (14.1, 14.2, 14.3) for controlling its own electronic apparatus (104) on the basis of said command information (17), when said electronic apparatus (104) is designated by said device information (16), an operation memory (117) for memorizing said operation information, when its own electronic apparatus is designated by said device information, communication signal encoder means (12) for forming a message frame from the received wireless signal in compliance with a predetermined communication control rule and communication protocol, when its own electronic apparatus is not designated by said device information, communication means (11) for transmitting said message frame to said communication line and for receiving a message frame (123, 124) from other electronic apparatus connected to said communication line, comparison and determination means (116) for comparing said operation information (120) in a message frame from other electronic apparatus with said operation information (120)) memorized in said operation memory (117) and determining introduction of said message frame into its own electronic apparatus on the basis of a predetermined rule, and for replacing the operation information memorized in said operation memory with the operation information of the message frame, when said message frame is introduced into its own electronic apparatus, and communication signal decoding means (15) for decoding said message frame and for applying said decoded information to said device control means (14.1).