| 摘要 |
PURPOSE:To improve the function preventing crimes as an electronic lock by transmitting the instruction data to execute the rewriting of password codes to a remote control receiver only when a remote control transmitter and a jig exclusively used for the rewriting are used. CONSTITUTION:A jig 17 exclusively used for the rewriting to generate a specific repeating signal is provided. Since a signal phi2 is inserted into a signal processing part 4 under a condition that the jig 17 exclusively used for the rewriting is fitted with a remote control transmitter 2, a proper code '4169' is transmitted by key-in subsequently to 'FFFF'. The 'FFFF4169' is received by a remote control receiver 8, when the match of the proper code is detected, a code collation part 13 recognizes the rewriting of the password codes, of which instruction contents is already registered in an EP-ROM 12, from the 'FFFF', outputs a specific code 'F' to a data processing part 15, and when the data processing part 15 detects the 'F', it clears the '1988' of the password codes being registered in the EP-ROM 12. The code of 4-digits being keyed-in is written into the EP-ROM 12 as the password codes. |
