| 摘要 |
PURPOSE:To provide a cordless system which can prevent connection abnormality by means of an operation of a master machine in the case of a certain operation abnormality between the master machine and a slave machine, concerning to the cordless system consisting of the master machine and the slave machine. CONSTITUTION:In the cordless system consisted of a master machine and a slave machine mounting an operating part 21 or a display part 22 which exchange information by radio, the master machine is constituted by providing therein a hook switch 24 for detecting off-hook of the slave machine and for outputting a contact signal, a gate 25 for receiving an output of the hook switch 24, a microprocessor 26 for executing communication control with the slave machine with an output of the gate 25 received in its handset signal input, and an abnormality detecting part 27 for detecting either a certain operation abnormality of the slave machine or abnormality of a radio section between the master machine and the slave machine, and for controlling the gate 25 by its detected signal. |
