Earwax protection device and method having a contrasting or...

Details Earwax protection device and method having a contrasting or... Earwax protection device and method having a contrasting or...

2011-01-11

2011-01-11

Nguyen, Tuan D (Department: 2614)

Electrical audio signal processing systems and devices

Hearing aids, electrical

Specified casing or housing

C381S322000

Reexamination Certificate

active

07869613

ABSTRACT:
The present invention provides the ability to efficiently detect a defect of an earwax protection device membrane. To achieve this, a high contrast is set between the membrane and the associated carrier. If the membrane is torn, the carrier in the background can then easily be detected. A particularly suited brightness contrast between the membrane and the carrier is >0.1. In the case of a desired high color contrast, the color of the membrane should be spaced apart from the color of the carrier by at least 60° on a blue-yellow-red color circle.

REFERENCES:
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patent: 5970157 (1999-10-01), Yoest
patent: 6164409 (2000-12-01), Berger
patent: 2002/0136420 (2002-09-01), Topholm
patent: 2003/0037989 (2003-02-01), Widmer et al.
patent: 2005/0018866 (2005-01-01), Schulein et al.
patent: 196 40 796 (1998-04-01), None
Sonion: “C-Barrier”, Application Note, Jan. 10, 2005, www.sonion.com.

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