Communication device capable of ambient sound level controlled t

Details Communication device capable of ambient sound level controlled t Communication device capable of ambient sound level controlled t

1990-07-16

1992-03-03

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

3403111, 381 56, H04B 700

Patent

active

050936581

ABSTRACT:
A communication device (10) measures and compares (16,18) the ambient sound level of its environment. When the current ambient sound level exceeds a given threshold (52) the communication device automatically transmits (38) an information signal (44). Optionally, the communication devices's volume is also adjusted (26).

REFERENCES:
patent: 4160875 (1979-07-01), Kahn
patent: 4475232 (1984-10-01), Shaw
patent: 4628526 (1986-12-01), Germer
patent: 4904992 (1990-02-01), Grothause
patent: 4935952 (1990-06-01), Dutra

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