Author:
Date:
Subject:
David Grant
2008-07-15 09:11:01
Re: Memresistor & Audio
"Arny Krueger" <[email protected]> wrote in message
news:MYidnTdn-7kKVubVnZ2dnUVZ_q7inZ2d@comcast.com...
> "David Grant" <[email protected]> wrote in message
> news:[email protected]
>> HP announced that it's beginning to manufacture the
>> memresistor in 2009. Any speculation that this device
>> will have a practical application in analog audio
>> storage? I haven't read any specs on dynamic range, but
>> assuming it beats CD quality, might we have an analog
>> storage device that's as good as digital but without
>> quantization error?
>
> It appears that this device remembers the direction of current flow. Since
> current can only flow in 2 directions, it would appear to be only capable
> of binary (digital) memory.
Sorry... I was led to believe it remembers the amplitude of the current
flow. I read that you set the resistance of the device using DC voltage and
measure it using AC.
Author:
Date:
Subject:
Tobiah
2008-07-15 12:42:37
Re: Memresistor & Audio
>> It appears that this device remembers the direction of current flow. Since
>> current can only flow in 2 directions, it would appear to be only capable
>> of binary (digital) memory.
>
> Sorry... I was led to believe it remembers the amplitude of the current
> flow. I read that you set the resistance of the device using DC voltage and
> measure it using AC.
The more current you put through in one direction, the greater
the resistance. Put current through the other way, and it starts
to lower in resistance. It is quite suited to analog computing.
** Posted from http://www.teranews.com **
Author:
Date:
Subject:
Eeyore
2008-07-19 08:20:55
Re: Memresistor & Audio
Tobiah wrote:
> >> It appears that this device remembers the direction of current flow. Since
> >> current can only flow in 2 directions, it would appear to be only capable
> >> of binary (digital) memory.
> >
> > Sorry... I was led to believe it remembers the amplitude of the current
> > flow. I read that you set the resistance of the device using DC voltage and
> > measure it using AC.
>
> The more current you put through in one direction, the greater
> the resistance. Put current through the other way, and it starts
> to lower in resistance. It is quite suited to analog computing.
I somewhat doubt it's going to be very linear.
Graham
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