Global Patent Index - EP 0901111 A3

EP 0901111 A3 2000-01-12 - Method and device for alerting people

Title (en)

Method and device for alerting people

Title (de)

Verfahren und Einrichtung zur Warnung von Personen

Title (fr)

Procédé et dispositif pour alerter des personnes

Publication

EP 0901111 A3 (DE)

Application

EP 98115790 A

Priority

DE 19738568 A

Abstract (en)

[origin: EP0901111A2] The method involves measuring noise levels during a pause in the warning signals and storing this as a reference noise value. The level of the warning signals (25,55) are then measured during the period when the warning apparatus is active. During this period, the warning signals are adjusted until their measured level exceeds the previously stored noise value by a preset amount. There is also an Independent claim to an apparatus for carrying out the method.

IPC 1-7 (main, further and additional classification)

G08B 3/10; B61L 23/06

IPC 8 full level (invention and additional information)

B61L 23/06 (2006.01); G08B 3/10 (2006.01)

CPC (invention and additional information)

G08B 3/10 (2013.01); B61L 23/06 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family

EP 0901111 A2 19990310; EP 0901111 A3 20000112; EP 0901111 B1 20030326; AT 235728 T 20030415; DE 19738568 C1 19990311; DK 0901111 T3 20030616; ES 2195243 T3 20031201; PT 901111 E 20030829