Inventors: Heinz Baumert, Sindelfingen;
Thomas Farnung, Weil der Stadt;
Ferdinand Greiner, Aidlingen, all of
Fed. Rep. of Germany
Mercedes-Benz AG, Fed. Rep. of
Germany
[21] Appl. No.: 661,002
[22] Filed: Feb. 26,1991
[30] Foreign Application Priority Data
Feb. 27, 1990 [DE] Fed. Rep. of Germany 4006125
[51] Int. CI.' H04Q 1/00; H04B 10/00;
G08C 23/00
[52] U.S. Q 340/825.720; 340/825.31;
359/142
[58] Field of Search 340/825.710, 825.31,
340/825.69, 825.72, 984; 341/176; 359/142, 144, 147, 150, 151, 157, 173, 174, 181; 318/16;
307/10.1, 10.5; 180/287, 289
[56] References Cited
U.S. PATENT DOCUMENTS
2,543,789 3/1951 MacMillan 318/16
3,936,833 2/1976 Bush 341/176
4,247,850 1/1981 Marcys 341/176
4,459,591 7/1984 Haubner et al 359/157
4,479,264 10/1984 Lockett et al 359/174
4,761,777 8/1988 Edwards et a] 359/173
4,843,639 6/1989 Beals 359/147
4,868,409 9/1989 Tanaka et al 307/10.5
4,971,417 11/1990 Krinsky et al 359/174
5,008,667 4/1991 Palmer et al 340/984
5,040,990 8/1991 Suman et al 307/10.1
5,073,981 12/1991 Giles et al 359/174
FOREIGN PATENT DOCUMENTS
3314072 1/1986 Fed. Rep. of Germany .
3043627 12/1987 Fed. Rep. of Germany .
8804929 8/1988 Fed. Rep. of Germany .
3828794 6/1989 Fed. Rep. of Germany .
Primary Examiner—Donald J. Yusko
Assistant Examiner—Andrew Hill
Attorney, Agent, or Firm—Evenson, Wands, Edwards,
Lehahan & McKeown
[57] ABSTRACT
A remote-control system for locks having an infrared hand-held transmitter of the remote-control system, which is used for the remote-control of the central locking system of a motor vehicle, and a receptacle for the insertion of the transmitter arranged in the motor vehicle. At least one optical cable, leading into the region of the receptacle for carrying signals from the transmitter, is routed from the receptacle to at least one exit hole arranged on the outer skin of the motor vehicle. In this way, the control of a receiver arranged outside the motor vehicle and associated preferably with a remote-controlled garage door drive is made possible.
20 Claims, 3 Drawing Sheets
