Electrical transmission or interconnection systems – Vehicle mounted systems – Automobile
Patent
1996-08-09
1998-08-25
Shoop, Jr., William M.
Electrical transmission or interconnection systems
Vehicle mounted systems
Automobile
307 102, 307 104, 364424037, 36442404, 180287, 34082569, G06F 1700
Patent
active
057985766
ABSTRACT:
A central-locking system is reset upon loss of a portable remote-control unit and replacement by another in a system in which a diagnostic device is temporarily connected and switched to the stationary part of the locking system into a "SETUP" mode. The key is then inserted into a key-operated switch to interrogate the transponder with the transceiver and from the latter the key-identification code word stored in the transponder and the transponder initial code word are transferred. The key-identification code word and transponder initial code word are stored in a code-word memory and the transmitter is then operated to send a remote-control changing code word to the receiver and enables switching back to the "NORMAL" mode of operation and removal of the diagnostic device.
REFERENCES:
patent: 4942393 (1990-07-01), Waraksa et al.
patent: 5049867 (1991-09-01), Stouffer
patent: 5513107 (1996-04-01), Gormley
patent: 5523948 (1996-06-01), Adrain
patent: 5561420 (1996-10-01), Kleefeldt et al.
patent: 5583383 (1996-12-01), Denz
Ostermann Wilfried
Welskopf Fred
Dubno Herbert
Ganjian Peter
Kiekert AG
Shoop Jr. William M.
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