Communications: electrical – Continuously variable indicating – With meter reading
Patent
1996-10-16
1998-10-27
Zimmerman, Brian
Communications: electrical
Continuously variable indicating
With meter reading
367197, G08B 522
Patent
active
058283145
ABSTRACT:
A paging device references current ambient sound energy in selecting alarm presentation. In the illustrated embodiment, a low volume alarm presentation occurs in relatively quiet ambient sound conditions and a high volume alarm presentation occurs in relatively loud ambient sound conditions. Multiple levels of ambient sound energy cause a selected one of multiple potential alarm volumes. By making alarm volume presentation a function of ambient sound conditions, the paging alarm of the present invention better matches current conditions to improve the user's ability to hear the alarm and to reduce the risk of annoying others.
REFERENCES:
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patent: 4438527 (1984-03-01), Hammond
patent: 4904992 (1990-02-01), Grothause
patent: 4918438 (1990-04-01), Yamasaki
patent: 5077799 (1991-12-01), Cotton
patent: 5093658 (1992-03-01), Grothause
patent: 5189389 (1993-02-01), De Luca et al.
patent: 5596651 (1997-01-01), Yamaguchi
patent: 5646589 (1997-07-01), Murray et al.
Galbi Elmer
Merz Edward
Seiko Communication Systems
Zimmerman Brian
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