| 摘要 |
PURPOSE:To attain the remote control operations of the general household electric products despite a busy mode secured between the master and slave devices by digitizing the communication transmission system set between the master and slave devices and providing a control channel to a part of a communication channel. CONSTITUTION:The communication transmission system is digitized between a master device 1 and a slave device 2, and a control channel is provided to a part of a communication channel for the uses except the communication. Thus the control information can be transmitted to and received from an air conditioner 3, a TV set 4, etc., via the control channel even in a busy mode secured between both devices 1 and 2 or between the device 2 and a public circuit network. The conditioner 3 or the set 4 extracts only the necessary control information out of those data transmitted and received and analyzes a control command to control each equipment. Therefore the general household electric products can be remote-controlled even in a busy mode of the device 2.
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