Output stage for a hearing aid and method of driving output...

Details Output stage for a hearing aid and method of driving output... Output stage for a hearing aid and method of driving output...

2006-08-07

2010-12-14

Ni, Suhan (Department: 2614)

Electrical audio signal processing systems and devices

Hearing aids, electrical

C381S317000

Reexamination Certificate

active

07853029

ABSTRACT:
In an output stage for a hearing aid (62), a reduction in the power consumption for low level input signals is obtained through the use of a time-averaging output driver (42), whereby the output transducer is subject to three different conditions of operations, this being obtained through the generation of three-state control signals for control of a H-bridge. The three-state control signals are generated through the use of a time-averaging device whereby the two-level output of a single bit Sigma-Delta modulator (21) is transformed to a set of control signals that, at any given time, can assume one of three states. In a preferred embodiment the time-averaging device is a delay (40).

REFERENCES:
patent: 5276910 (1994-01-01), Buchele
patent: 6867722 (2005-03-01), Hochschild
patent: 7336794 (2008-02-01), Furst et al.
patent: 2002/0186155 (2002-12-01), Olson

Affiliated with

Also associated with

Rating

Output stage for a hearing aid and method of driving output... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Output stage for a hearing aid and method of driving output..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Output stage for a hearing aid and method of driving output... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4216349