Locking system especially for automobiles
First Claim
1. A locking system for an automobile, comprising:
- an operating key;
an operating key receptacle;
an operating unit associated with the operating key receptacle;
a light guide in the operating key receptacle; and
electro-optical converter elements, including luminous elements and photocells arranged in the operating key and in the operating key receptacle, optically coupled to the light guide, for transmitting an optical energy signal through the light guide from the operating key receptacle to the operating key for supplying energy for operation of the operating key, and for transmitting coded operating signals through the light guide, including a second operating signal transmitted from the operating key receptacle to the operating key and a first operating signal transmitted from the operating key to the operating key receptacle, wherein the second operating signal operates jointly with the first operating signal in a bidirectional communication to constitute an alternating code for activation of the operating unit upon a successful decoding of the two transmitted operating signals.
1 Assignment
0 Petitions
Accused Products
Abstract
A 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.
56 Citations
16 Claims
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1. A locking system for an automobile, comprising:
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an operating key; an operating key receptacle; an operating unit associated with the operating key receptacle; a light guide in the operating key receptacle; and electro-optical converter elements, including luminous elements and photocells arranged in the operating key and in the operating key receptacle, optically coupled to the light guide, for transmitting an optical energy signal through the light guide from the operating key receptacle to the operating key for supplying energy for operation of the operating key, and for transmitting coded operating signals through the light guide, including a second operating signal transmitted from the operating key receptacle to the operating key and a first operating signal transmitted from the operating key to the operating key receptacle, wherein the second operating signal operates jointly with the first operating signal in a bidirectional communication to constitute an alternating code for activation of the operating unit upon a successful decoding of the two transmitted operating signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification