JPH0564518B

Apparatus for remotely controlling the operation of various electronic devices (1, 2, 3) comprises a remote-control unit (5) having a read-only memory (5b) for storing a data table, a keyboard (4a) for generating a program to be executed at a predetermined future time, a random-access memory (5c) for storing the program, a central processing unit (5a) jointly interactive with the read-only memory (5b) and the random-access memory (5c), and a transmitter (5f) controlled by the central processing unit (5a) for producing a remote-control signal based on the data table and the program. A receiver (1a) is responsive to the remote-control signal for controlling the devices (1, 2, 3) in accordance therewith, and a simulator (4) is provided for producing the remote-control signal before the predetermined future time, so that at least a portion of the program is pre-executed as a test of its validity.