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1
The whole pretence that there is some clear difference between ideas and implementations in the context of patents is a ruse to begin with (a prototype is clearly an implementation from an English point of view, but that's never what they mean). Don't get caught up in it, there's no difference. Same as objective tests for obviousness and prior art ... there is no difference there either.

The only way to honestly judge the level of innovation and obviousness in a patent isn't semantic games, it's by asking the subjective opinion of a domain expert (hindsight be damned). No amount of semantic circle jerking will ever change that, which is not to say lawyers will ever find that satisfactory so they'll keep circle jerking. Don't stand in the middle.


I think you may be misusing the term "circle jerk"

http://www.urbandictionary.com/define.php?term=circle%20jerk&utm_source=search-action
2
How is this related to the jitter issue?

The images are an attempt to duplicate the jitter issue on a DS4000 - another of the Rigol UltraVision DSOs which Dave doesn't own, but which I'm sure he would have tested if he had (as he did with the DS2000).


Sorry, I thought this topic was the Rigol DS1000Z & DS2000 Oscilloscope Jitter Problems discussion.  My bad... Ill move on.
3
How is this related to the jitter issue?

The images are an attempt to duplicate the jitter issue on a DS4000 - another of the Rigol UltraVision DSOs which Dave doesn't own, but which I'm sure he would have tested if he had (as he did with the DS2000).
4
(...) Attached is a montage of 4 different screenshots. T=0, T=5us, T=15us and T=105us. Same 10MHz Square wave from DG4162, 50% dutycycle. Input DC coupled, trigger AC coupled. For reference, this is on a DS4k.

As you can see it does a look a bit better at T=0 and gets progressively worse as T increases (as expected). It's not much of a difference between T=0 and T=15 but it's clearly vissible at T=105us.

It looks more like intensity level feature related, because all images have actually basically the same trace width (5 pixels), but on the smaller T ones you have a stronger central trace line and that gets dimmer and dimmer with increasing T. I guess I would implement the core intensity level feature (phosphor "inertia") by setting the trace intensity to a function of its T ("older" traces get drawn dimmer)... maybe some confusion here.

What does this have to do with the topic here???  These off topic post make it really hard to follow the original intent.  over 2 pages of resolution jabbering and false promises to take it elsewhere.   |O  Mods.... Is there a way these OT post can be moved?

Seriously? They are discussing the jitter mentioned by Dave. Perhaps you need to relax and get to know the way this forum operates - some of the best stuff here happens perpendicular-to-topic.

How is this related to the jitter issue?  Sorry I thought this was part of the ongoing resolution discussion.
5
(...) Attached is a montage of 4 different screenshots. T=0, T=5us, T=15us and T=105us. Same 10MHz Square wave from DG4162, 50% dutycycle. Input DC coupled, trigger AC coupled. For reference, this is on a DS4k.

As you can see it does a look a bit better at T=0 and gets progressively worse as T increases (as expected). It's not much of a difference between T=0 and T=15 but it's clearly vissible at T=105us.

It looks more like intensity level feature related, because all images have actually basically the same trace width (5 pixels), but on the smaller T ones you have a stronger central trace line and that gets dimmer and dimmer with increasing T. I guess I would implement the core intensity level feature (phosphor "inertia") by setting the trace intensity to a function of its T ("older" traces get drawn dimmer)... maybe some confusion here.

What does this have to do with the topic here???  These off topic post make it really hard to follow the original intent.  over 2 pages of resolution jabbering and false promises to take it elsewhere.   |O  Mods.... Is there a way these OT post can be moved?

Seriously? They are discussing the jitter mentioned by Dave. Perhaps you need to relax and get to know the way this forum operates - some of the best stuff here happens perpendicular-to-topic.
6
General Chat / Re: Gelato making machines.
« Last post by VK3DRB on Today at 02:46:11 PM »
lol.

Gelato is just the Italian name for ice cream. Depending on where you buy it, it can actually be anything from posh/fancy to crap. Most machines for making the stuff are marketed as gelato rather than ice cream makers.

Yep, there is gelati and then there is gelati.

One thing to put on your bucket list... Fly to Italy, and go to the corner of Via Volturno and Via Cernaia in Rome, a short walking distance from the Termini. There is a Gelateria on Via Volturno. They sell arguably the best gelati on planet earth; all made by the shop owner. I had three double galatis every day for a week; the favourite was cocco. It was addictive and divine :P.

In comparison, I have never found a good gelati in Australia. On the other hand we do have Vegemite, which is delightful on fresh hot toast :-+.
7
Here are two more images that perhaps show the High Res recalculations more succinctly.

DS2000 stopped while in Normal mode, then vertical scale decreased from 200mv/div to 20mv/div:




Then High Res mode turned on:

8
Microcontrollers & FPGA's / Re: additional 8bit SRAM (parallel/serial)
« Last post by westfw on Today at 02:35:19 PM »
The new HAL replaced SPL?  I hadn't realized that; what I've used so far looked like Cube WAS generating calls to SPL, or that the HAL they were talking about included SPL...

(Of course, I've said elsewhere that I think the SPL is pretty bad, too...)
9
Beginners / Re: Transferring DC signals between isolated circuits
« Last post by nuno on Today at 02:33:05 PM »
Just wanted to say that if you go with the isolator chips, check also Siliconix, they have chips similar do AD (some even pin compatible) but cheaper (at least at mouser).
10
(...) Attached is a montage of 4 different screenshots. T=0, T=5us, T=15us and T=105us. Same 10MHz Square wave from DG4162, 50% dutycycle. Input DC coupled, trigger AC coupled. For reference, this is on a DS4k.

As you can see it does a look a bit better at T=0 and gets progressively worse as T increases (as expected). It's not much of a difference between T=0 and T=15 but it's clearly vissible at T=105us.

It looks more like intensity level feature related, because all images have actually basically the same trace width (5 pixels), but on the smaller T ones you have a stronger central trace line and that gets dimmer and dimmer with increasing T. I guess I would implement the core intensity level feature (phosphor "inertia") by setting the trace intensity to a function of its T ("older" traces get drawn dimmer)... maybe some confusion here.

What does this have to do with the topic here???  These off topic post make it really hard to follow the original intent.  over 2 pages of resolution jabbering and false promises to take it elsewhere.   |O  Mods.... Is there a way these OT post can be moved?
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