Essential Aphex Patents!

[StephenGiles]

Look-ee-here on page 36:
http://www.aphex.com/pdf/204/Aphex_204_user_man.pdf
.......very interesting stuff!
Stephen

 

[tony dB]

Thanks Stephen!

interesting reading, i finished it in no time :green:

Cheers,

tony

 

[gyraf]

Aphex Patents from that list:

(US patent numbers)

4,578,648 4,633,501 4,843,626 4,939,471 5,115,471 5,155,769 5,334,947 5,359,665 5,422,602 5,424,488 5,450,034 5,463,695 5,483,600 5,485,077 5,612,612 5,737,432 5,848,167 5,896,458 5,898,395 5,930,374

These patent list as patent database links:

http://l2.espacenet.com/espacenet/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US5930374&ID=US+++5930374A1+I+
Phase coherent cross-over

http://l2.espacenet.com/espacenet/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US5898395&ID=US+++5898395A1+I+
Drift canceling in A/D converters

http://l2.espacenet.com/espacenet/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US5896458&ID=US+++5896458A1+I+
"Sticky" leveler

http://l2.espacenet.com/espacenet/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US5848167&ID=US+++5848167A1+I+
Distributed pre-emphasis equalizer

http://l2.espacenet.com/espacenet/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US5737432&ID=US+++5737432A1+I+
Split-band clipper

http://l2.espacenet.com/espacenet/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US5612612&ID=US+++5612612A1+I+
Servo voltage regulator

http://l2.espacenet.com/espacenet/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US5485077&ID=US+++5485077A1+I+
Servo voltage regulator

http://l2.espacenet.com/espacenet/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US5483600&ID=US+++5483600A1+I+
Wave dependent compressor

http://l2.espacenet.com/espacenet/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US5463695&ID=US+++5463695A1+I+
Peak accelerated compressor

http://l2.espacenet.com/espacenet/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US5450034&ID=US+++5450034A1+I+
"reflected plate" tube amplifier

http://l2.espacenet.com/espacenet/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US5424488&ID=US+++5424488A1+I+
harmonics generator

http://l2.espacenet.com/espacenet/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US5422602&ID=US+++5422602A1+I+
Frequency dependent leveler

http://l2.espacenet.com/espacenet/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US5359665&ID=US+++5359665A1+I+
Bass enhancement

http://l2.espacenet.com/espacenet/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US5334947&ID=US+++5334947A1+I+
Logic enhanced noise gate

http://l2.espacenet.com/espacenet/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US5155769&ID=US+++5155769A1+I+
Parallel modulation multiplexer

http://l2.espacenet.com/espacenet/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US5115471&ID=US+++5115471A1+I+
Hifg frequency expander

http://l2.espacenet.com/espacenet/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US4939471&ID=US+++4939471A1+I+
Impulse detection circuit

http://l2.espacenet.com/espacenet/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US4843626&ID=US+++4843626A1+I+
Multiband limiter

http://l2.espacenet.com/espacenet/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US4633501&ID=US+++4633501A1+I+
Program dependent crossover

http://l2.espacenet.com/espacenet/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US4578648&ID=US+++4578648A1+I+
Dynamic gate circuit


Jakob E.

 

[tony dB]

aha,

I thought this was joke, as the only i saw last night on these pages was the "framework" of the pdf showing only headlines, no details nor content...

Reloading today showed all the text and numbers...
Ignore my stupid humorous previous post plz... :?

Tony

 

[StephenGiles]

Thanks for doing that Jakob, you beat me to it! I think there is some very interesting stuff in there. I also found found the manual for an Aphex broadcasting processor, which contains the "Web Version" of the schematics, and seems to incorporate many of the aforementioned patent subjects. I'll post the link this evening - I'm in a public library at the moment.
Stephen

 

[jdiamantis]

Holy ****!

How did he get a patent for the "wave dependant" compressor? That is, if anything, the exact circuit of the Dorrough DAP 310 multiband processor that was "invented" in the mid 1970's. Dorrough never got a patent for it, but as patents go, if the invention is something that has existed previously, or is common knowledge to experts in the field it (supposedly) can't be patented. i.e., you couldn't patent the wheel.

What a sleezebag! :evil:

and....what kind of dopes work in the patent office?????? :roll:

 

[tk@halmi]

You would not believe the sort of stuff that gets patented these days. Recently a patent was awarded here to a group that wrote a piece of software in Visual Basic. Prior to even the inception of the software there had been at least three commercially offered products with identical and, actually, broader functionality than this one. There was one guy doing the design and development, but at the end six people were put down on the patent awarded. We thought it was a total joke.

 

[StephenGiles]

Sticky Leveller........I refer you to the following Ian Dury lyrics to Billericay Dickie!

(spoken)
good evening i'm from essex
in case you couldn't tell
my given name is Dickie, I come from Billericay
and I'm doing very well

had a love affair with Nina
in the back of my Cortina
a seasoned up hyena could not have been more obscener
she took me to the cleaners
and other misdemeanours
but I got right up between her
rum and her Ribena

well, you ask Joyce and Vicki
if candy-floss is sticky
I'm not a blinking thicky
I'm Billericay Dickie
and i'm doing very well

I bought a lot of brandy
when I was courting Sandy
took eight to make her randy
and all I had was shandy
another thing with Sandy
what often came in handy
was passing her a 'Mandy'
she didn't half go bandy

so you ask Joyce and Vicki
if I ever took the mickey
I'm not a flipping thicky
I'm billeicay dickie
and I'm doing very well

I'd rondez-vouez with Janet
quite near the Isle of Thanet
she looked more like a gannet
she wasn't half a prannet
her mother tried to ban it
her father helped me plan it
and when I captured Janet she bruised her pomegranet

so you ask Joyce and Vicki
if i ever shaped up tricky
I'm not a blooming thicky
I'm Billericay Dickie
and I'm doing very well

you should never hold a candle if you don't know where it's been
the jackpot is in the handle on a normal fruit machine

so you ask Joyce and Vicki
who's their brickie
I'm not a common thicky
I'm Billericay Dickie
and I'm doing very well

I know a lovely old toe-rag obliging and noblesse
kindly, charming shag from Shoeburyness

my given name is Dickie
I come from Billericay
I thought you'd never guess

so you ask Joyce and Vicki
a pair of squeaky chickies
I'm not a flaming thicky I'm Billericay Dickie
and I'm doing very well

oh golly, oh gosh come and lie on the couch
with a nice bit of posh from Burnham-on-Crouch

my given name is Dickie, I come from Billericay
and I ain't a sloutch

so you ask Joyce and Vicki
about Billericay Dickie
I ain't an effin' thicky
you ask Joyce and Vicki
and I'm doing very well

Stephen

 

[StephenGiles]

Presumably you've all worked out and understood the workings of the Aphex Silence Gate, Dynamic Verification Gate, Sticky Leveller and Frequency Discriminate Leveller circuits. I am suggesting a joint effort here to produce workable side chain circuitry to further control the workings of compressors. When I manage to locate my Compellor manual, it will renew my aquaintance with the circuits in which the said DVG and SG (I think) are shown as proprietry blank squares. However they have posted circuits for their 2020 FM Pro Audio Processor in which I have so far managed to trace a DVG and reference to a SG. See here:
http://www.aphex.com/2020mkIII_downloads.htm

What Aphex seem to have done (as illustrated by the various patents) is design circuitry which provides an element of intelligence to the control voltage, allowing it to freeze for a predetermined length of time after the input has fallen either below a certain threshold or stays within a certain "window" of level range, thus eliminating the side effects associated with basic compressors such as pumping and sudden amplification of residual noise. The 2020 is obviously a very sophisticated broadcast quality unit from which we can extract some useful circuitry to enhance the terrific work already carried out by various members here.
See what you think.
Stephen

 

[StephenGiles]

Perhaps someone might show a little inspiration, show a little spark!
Stephen

 

[StephenGiles]

I'm wondering whether the Aphex Dynamic Recovery Computer (which doesn't have a patent) became the Frequency Discriminate Leveller which does - US5422602. Any thoughts on the matter?
Stephen

 

[clintrubber]

Just curious to what/if that Aphex optical stompbox (1404 Punch Factory? - Advanced Optical Compressor) is doing anything special - it sounds like an carefully designed/optimized opto-comp (gtr/bss) but not anything related to any of the patents here above.

Anyone had a look inside and/or used one ?

http://www.soundonsound.com/sos/dec04/articles/aphexpunch.htm
http://www.aphex.com/pedals.htm

Regards,

Peter

 

[pstamler]

"Plate reflector", my tuches. They built a two-stage feedback-pair amplifier, with the first stage a triode and the second stage a PNP transistor. Low supply voltages.

Peace,
Paul

 

[pstamler]

And they've also discovered that if you run a signal through a diode, it gets distorted. And if you change the bias on the diode, the distortion changes.

"Do you see anything?"

"Yes -- wonderful things!"

Peace,
Paul

 

[Flatpicker]

LOL! :green:

 

[clintrubber]

Just wanted to bump this one - anybody familiar with or toyed around with the orange Aphex 1404 box shown earlier in this thread ?

Thanks,

Peter