First draft-switching controller for personal ANR system

Details First draft-switching controller for personal ANR system First draft-switching controller for personal ANR system

1998-07-29

2000-12-12

Chang, Vivian

Electrical audio signal processing systems and devices

Acoustical noise or sound cancellation

Adjacent ear

A61F 1106

Patent

active

061608939

ABSTRACT:
An active noise control system for use in testing hearing using a pure tone audiometry testing procedure and employing multiple switching controllers with pre-filtering means and a switch to select any one controller to provide a predetermined one and having the ability to configure each switching controller so that the maximum threshold shift occurs for the frequency of the test tone and for modifying each test tone in accordance with a standard calibration frequency.

REFERENCES:
patent: 3571529 (1971-03-01), Gharib et al.
patent: 5481615 (1996-01-01), Eatwell et al.

Affiliated with

Also associated with

Rating

First draft-switching controller for personal ANR system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with First draft-switching controller for personal ANR system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and First draft-switching controller for personal ANR system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-224688