In an AV (audio and video) system, it is possible to suppress such a feeling of a user that he has to wait for an actual operation of an AV appliance after an operation instruction has been inputted until the AV appliance is actually operated. Upon receipt of a recording operation instruction...http://www.google.de/patents/US5739763?utm_source=gb-gplus-sharePatent US5739763 - Method for controlling electronic appliance capable of suppressing user's irritation 
