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Joined: Jul 2015
Posts: 11
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Joined: Jul 2015
Posts: 11
OK, this is a really difficult question. I am hoping someone from Philips frequents these boards and can help me.

I have a question about a very specific piece of the Philips Data Export Interface protocol. Occasionally, datapoints get sent across with a bitmask overlayed on them. This is explained in the protocol document under:

"Attribute: Sample Array Fixed Value Specification"

For example, an ECG might send the binary value:

1010000100010100

But this is actually overlayed with the following bitmask for SA_FIX_PACER_MASK:

1000000000000100

So I would assume that I can "unmask" that value, and the result should be:

0010000100010000

But that gives me a value that is totally wrong.

Are there any experts at Philips who can help me with the bitmasking here? I am seeing it on numerous signals, such AWF and AWP and all the ECG channels when the pacer is enabled.

Thanks so much,
John

Joined: Feb 2004
Posts: 14,654
Likes: 60
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Joined: Feb 2004
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Originally Posted By: josborne01

So I would assume that I can "unmask" that value, and the result should be:

0010000100010000

But that gives me a value that is totally wrong.


What is your assumption based upon ... and how do you know it is wrong? think


If you don't inspect ... don't expect.

Moderated by  DaveC in Oz, RoJo 

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