| 摘要 |
<p>PCT No. PCT/DE94/01131 Sec. 371 Date Mar. 29, 1996 Sec. 102(e) Date Mar. 29, 1996 PCT Filed Sep. 29, 1994 PCT Pub. No. WO95/09746 PCT Pub. Date Apr. 13, 1995A locking system for an automobile, comprises an operating key, an operating key receptacle and an associated operating unit. The operating key and the operating key receptacle have first means for transmitting a first coded operating signal from the operating key to the operating key receptacle. In addition, further second means are arranged in the operating key and in the operating key receptacle, for transmitting a second coded operating signal from the operating key receptacle to the operating key. The second operating signal cooperates with the first operating signal in a bidirectional communication in the manner of an alternating code, activation of the operating unit being made possible in the event of successful deciphering of the first transmitted operating signal.</p> |
