Patent ID: 6750782
Filing Date: 2004-06-15
Classification: G08C

Abstract:
A remote control system for controlling an apparatus exclusively among a plurality of a same type of apparatuses at a given location, said system comprising:a transmitter including a keypad having a code setting key, a control function key and a plurality of data input keys, said transmitter being responsive to user operation of said code setting key for establishing a user defined code setting mode in which said transmitter is responsive to user entry into the transmitter by means of said data input keys of a user defined code for setting and storing the user defined code in the transmitter and for transmitting the user defined code, and said transmitter being responsive to user operation of said control function key for establishing a control function mode in which said transmitter is responsive to user entry into the transmitter by means of said data input keys of a control function for transmitting a coded signal that includes the user defined code and a scan code representing the control function entered by the user; and a receiver incorporated into the apparatus and having a user defined code setting mode responsive to reception of the user defined code transmitted by the transmitter for setting and storing the user defined code in the receiver, said receiver receiving and responding to the coded signal generated by the transmitter; wherein, once the user defined code is stored in both the transmitter and receiver, the received user defined code in the received coded signal is compared to the user defined code set in the receiver, and the control function is carried out only when the received user defined code matches the user defined code stored in the receiver.