SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Technology Stocks : Wind River going up, up, up!
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  
To: Don Lloyd who wrote (1500)7/15/1997 12:01:00 PM
From: Allen Benn   of 10309
 
>However I believe that your judgment that analog is obsolete is only true
>in the sense that analog computers no longer are useful and that many signal
>processing functions HAVE correctly migrated into the digital domain.

That was what I was trying to say, but obviously not with proper clarity. Sorry.

>The requirement for Pentium fans as processor speeds have increased illustrates
>that digital circuits have their own power problems as millions of node capacitances
>are continuously charged and discharged at high speed.

The noise figures I presented are actual for the DSP-based existing system referenced. I do not recommend putting a Pentium processor in your ear, mainly because of that annoying fan, so you certainly are correct about the current state of technology. Nevertheless, it seems to me that adequate processors might well be sufficiently smaller and less power-hungry to augment or replace the DSP processor in a few years.

>Also, in the cases where a belt module is appropriate, the system partitioning should
>probably move as much functionality as possible to the belt module and minimize
>the amount in the ear, with advantages for power allocation.

There is an advantage in putting as much capability in the ear as possible, which is why I described it that way. However, if you want to build all the capabilities this year, then there is the practical necessity to transfer as much as possible to the belt module, as you indicate.

If the hearing aid were simply programmed to perform high-frequency signals to speech, then every function presented could be implemented today by transferring all other functions to a belt module similar in size to a cellular phone.

Allen
Report TOU ViolationShare This Post
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  

HomeMailHotSubjectMarksPeopleMarksKeepersSettings
Terms Of UseContact UsCopyright/IP PolicyPrivacy PolicyAbout UsFAQAdvertise on SI
© 2025 Knight Sac Media.  Data provided by Twelve Data, Alpha Vantage, and CityFALCON News