Patent ID: 6043753
Filing Date: 2000-03-28
Classification: E05B,G07C,Y10T

Abstract:
A remote-control-operated locking/unlocking system comprising:a locking/unlocking unit; anda key having an element for manual insertion into said locking/unlocking unit and a remote control unit for transmitting a locking/unlocking signal by remote control, said locking/unlocking unit having a locking/unlocking mechanism for insertion thereinto of said element of said key and control means for controlling a locking/unlocking operation based on the locking/unlocking signal transmitted from said key, said control means includingdetermining means for determining suitability of the locking/unlocking signal transmitted from said key, andinformation means arranged inside of said locking/unlocking unit for providing audible information to a user of said key indicating that said key is unsuitable and ineffective based on the suitability determination made by said determining means.