On Feb 29, 4:19*pm, Jeff Liebermann wrote:
On Wed, 29 Feb 2012 09:26:27 -0500, KG wrote:
On Tue, 28 Feb 2012 12:03:35 -0800, Jeff Liebermann wrote:

On Tue, 28 Feb 2012 07:56:49 -0500, KG wrote:

Could someone inform us who are the largest designers and or manufactures of
hearing aid chips and for what brands?

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.128.7364&rep...
http://www.sounddesigntechnologies.com/products.php
http://www.onsemi.com
http://hearingmojo.com *(Many links and useful articles)

Amazing what you can find with Google.

I did Google, and received about what you did but that does not begin to answer
the question.

True. *Is largest by number of units sold, gross sales, or floor space
in square meters? *Presumably, you need this information for some sort
of electronics repair.

I used to do this kind of research in other industries. *If someone
else hadn't done the necessary research and made it available, it
would take me 2-3 days to find all the numbers for one product area. I
couldn't find anything showing hearing aid sales, but may have missed
something in the Google clutter.

I suggest you start with a list of manufacturers:
http://www.hearingaidknow.com/2008/07/16/hearing-aid-manufacturers/
Their sales should be available on their web site, stock summary, or
SEC filings. *There's no standard for how they report their sales, so
some analysis and creativity will be necessary.

Once you've identified the "largest" manufacturer, the chips used can
possibly be found on the FCC type certification pages. *Often the
major manufacturers of low voltage hearing aid chips will disclose
their major customers. *Except for the largest vendors, I don't expect
this information to be publicly available.


I would suspect that the largest companies would design their own
chips, to maintain a competitive advantage. These would be fabbed and
tested by one of the various foundries.