Apparatus and system for damping external noises with means for

Details Apparatus and system for damping external noises with means for Apparatus and system for damping external noises with means for

1997-12-09

2000-01-11

Miska, Vit

Horology: time measuring systems or devices

Combined with disparate device

368 73, 368245, 455231, 455344, G04B 4700, G04B 2302, H04B 106

Patent

active

060143452

ABSTRACT:
An apparatus designed to damp external noises, allowing the user to sleep in noisy environments. More particularly, it relates to a pair of hearing-protecting ear covers that insulate the user's ears from external noises, ear covers that incorporate a headphone stereo for transmission of a time, smoke, fire and/or security alarms. The headphone stereo can also transmit music, peaceful sounds, or noise reducing frequencies. The sound producing circuitry is connect in parallel to the alarm system to allow alarm detection even when the user is listening to music or other sounds.

REFERENCES:
patent: 3908180 (1975-09-01), Braginski
patent: 4047377 (1977-09-01), Banks, Jr.
patent: 4082918 (1978-04-01), Chang et al.
patent: 4166358 (1979-09-01), Tremblay et al.
patent: 4481674 (1984-11-01), Silva
patent: 4949077 (1990-08-01), Mbuthia
patent: 5365494 (1994-11-01), Lynch
patent: 5369797 (1994-11-01), Tyree
patent: 5555536 (1996-09-01), Rolf et al.

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