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FabulaTech Forum Remote Desktop Solutions USB for Remote Desktop (Moderators: Andrew, Tim_GaliullinFT, Sergey_Jarovski) USB Signature Pads Previous topic | Next topic
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thec0dy
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USB Signature Pads
on: Apr 8th, 2013, 2:25pm 		Quote Quote  Modify Modify
Has anyone experimented with a USB signature pad? I have the software installed. The device shows up and is recognized. When I do a signature it appears all jittery. I am also connecting through citrix (ica). I tried RDP as well and the same thing happens. A signature is formed but the lines go all over the place.
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thec0dy
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Re: USB Signature Pads
Reply #1 on: Apr 8th, 2013, 2:30pm 		Quote Quote  Modify Modify
FYI it is a Topaz T-S460-HSB-R
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Mike
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Re: USB Signature Pads
Reply #2 on: Apr 8th, 2013, 5:30pm 		Quote Quote  Modify Modify
Do you use the version 3.1.4?
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Mike Storm

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thec0dy
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Re: USB Signature Pads
Reply #3 on: Apr 9th, 2013, 6:36am 		Quote Quote  Modify Modify
Yes I am using the newest version. I am not sure if any kind of latency causes the issue. It seems to generally go in the right direction then all of a sudden it just starts scribbling. If I hold the pen down to the screen it will start making lines near that area.
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Mike
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Re: USB Signature Pads
Reply #4 on: Apr 9th, 2013, 11:12am 		Quote Quote  Modify Modify
Are the server and the client machines on the same LAN? Or you're trying this over the Internet?
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Mike Storm

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thec0dy
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Re: USB Signature Pads
Reply #5 on: Apr 9th, 2013, 11:15am 		Quote Quote  Modify Modify
It is a WAN connection going through VPN. It has response times of 20ms. This is where our citrix servers are located.
 
We have been using the serial verison of topaz signature pads fine, but we want to get away from serial due to supply and having to have another peice of technology serial to usb adapter for it to work.
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thec0dy
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Re: USB Signature Pads
Reply #6 on: Apr 9th, 2013, 12:48pm 		Quote Quote  Modify Modify
I just did a local test from one computer to another one. The signature came across perfectly! So it seems like the software does not have anyway of fixing sensitive devices regarding latency. I think if you can incorporate that into your product it would be a game changer.
Last Edit: Apr 9th, 2013, 12:49pm by thec0dy IP Logged
thec0dy
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Re: USB Signature Pads
Reply #7 on: Apr 9th, 2013, 12:49pm 		Quote Quote  Modify Modify
Any thoughts on how to improve reliability for sensitive devices?
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Mike
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Re: USB Signature Pads
Reply #8 on: Apr 9th, 2013, 5:17pm 		Quote Quote  Modify Modify
I'll create a task for our devs to investigate this.
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Mike Storm

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Mike
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Re: USB Signature Pads
Reply #9 on: Apr 12th, 2013, 10:19am 		Quote Quote  Modify Modify
You should try enabling URB-request caching. Do the following:
 
1. Make sure you use the latest version 3.1.4
 
2. On the physical side (Workstation) create "HIDDeviceOption" parameter with the "DWORD" type and value "1" in the following registry branch:
 
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\ftusbrdwks
 
3. Restart the Workstation service or replug the device
 
Let me know if it helps.
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Mike Storm

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thec0dy
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Re: USB Signature Pads
Reply #10 on: Apr 12th, 2013, 11:12am 		Quote Quote  Modify Modify
I added that registry key then restarted. I launched my application and it first seemed better, but then it started doing the same thing.  
 
Here is what the signature looks like currently. It is still choppy.
http://s9.postimg.org/3uirur627/signature.jpg
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skratchi
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Re: USB Signature Pads
Reply #11 on: Dec 1st, 2014, 9:24am 		Quote Quote  Modify Modify
Hello
 
I know this thread is old, but we have the same Problem. We use USBforRemote Server 5.0.2 and Citrix Xenapp 6.5. Igel are Linux UD5-LX 40, FW 5.03.190.01. We use Signpads from Wacom STU-520A.  
 
The signature, when signing slowly it works pretty good. But when you sign fast, then it Looks like the Picture from "thec0dy":
 
http://s9.postimg.org/3uirur627/signature.jpg
 
And normally People are very fast to sign a document, so we cannot rollout in this condition. Is there something we can do to improve this?
 
Thank you!
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InnaWhite
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Re: USB Signature Pads
Reply #12 on: Dec 2nd, 2014, 3:57am 		Quote Quote  Modify Modify
Dear customer,
   
We aware of this problem and currently our technical team is working to improve the quality of signature.  
 
I apologize for the inconvenience you face.
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Inna White

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giaosang
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Re: USB Signature Pads
Reply #13 on: Nov 23rd, 2020, 11:07am 		Quote Quote  Modify Modify
I use a XP-PEN Star G430S USB digital Signature Pad
Last Edit: Nov 23rd, 2020, 11:20am by Sergey_Jarovski IP Logged
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