Remote control system and method using variable ID code

Details Remote control system and method using variable ID code Remote control system and method using variable ID code

1995-08-02

1998-06-30

Horabik, Michael

Communications: electrical

Continuously variable indicating

With meter reading

34082567, 34082531, 34082534, 34082522, 307 91, 307 102, 70278, 380 21, 380 23, 380 42, 380 49, G08C 1900, G06F 704, H04K 100

Patent

active

057740658

ABSTRACT:
In a remote control system, each time a transmission code is transmitted, a rolling code having a prescribed bit configuration is cumulatively varied. An operation process is performed between each bit data item of the rolling code and each corresponding bit data item of the ID code, whereby each bit data item of the ID code is varied in correspondence with the rolling code, thus setting a variable ID code. Since the ID code itself which is contained in the signal is also varied in correspondence with the variable code, the fixed portion contained in the signal is decreased with the result that the ID code is almost infinitely widely varied. Accordingly, it becomes almost impossible to decode the ID code even if it is intercepted.

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