Communications: electrical – Condition responsive indicating system – With particular coupling link
Reexamination Certificate
2007-04-24
2007-04-24
Swarthout, Brent A. (Department: 2612)
Communications: electrical
Condition responsive indicating system
With particular coupling link
C340S539110, C340S870030, C455S404200, C702S002000, C702S005000
Reexamination Certificate
active
11101308
ABSTRACT:
A device for guiding a person along a traveled path enables the wearer of the device to be guided back along the traveled path in an electronically supported manner even under conditions under which orientation is difficult. The device has a portable ejection means (2), in which a container (14) for accommodating a plurality of transponders (7) and an ejection mechanism (10), which is actuated by a control device (6) to eject a transponder (7) from the container (14), are present. A control unit (6) is prepared such as to actuate the ejection mechanism (10) at predetermined time intervals or at predetermined distances in space. A portable transmitter/receiver device (8) is designed to detect at least one of the transponders (7) dropped off and to generate a signal representative of the direction in which that transponder (7) is located. A portable display device (4) receives the direction signal of the transmitter/receiver means (8) and offers the wearer a visual and/or acoustic display of the direction.
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Jack Mottley, Nov. 11, 2003, Stand der Technik: Veröffentlichtes Material, Sensor Technology.
Beckmann Udo
Gerder Henning
Matthiessen Hans
Meyer Jörg-Uwe
Sattler Frank
Dräger Safety AG & Co. KGaA
McGlew & Tuttle PC
Swarthout Brent A.
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