Talk:Bluetooth profile

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Contents 1 Definitions 2 removed some corporate links 3 Introduction 4 Multi-link 5 Human Interface Device Profile (HID) history 6 Plagiarism 7 Advanced Audio Distribution Profile (A2DP)

[edit] Definitions

Several times the term SCO is used, but it is never defined or linked anywhere. --ScottJ 23:28, 3 November 2006 (UTC)

sco stands for Synchronous Connection Oriented link, see http://www.palowireless.com/infotooth/glossary.asp#SCO

I agree with the above comment about SCO. Also the term TCS is undefined. I also agree that the separate Wikipedia article on the A2DP profile be merged into here. Its the same information and the additional info currently in the other article would enhance this one. Just make sure that when searching for A2DP that this article is found once the other one is deleted. Lbecque 18:24, 5 January 2007 (UTC)

[edit] removed some corporate links

"useful external links" linked you to a page that required membership, possibly money.... —The preceding unsigned comment was added by Tendo (talk • contribs) 18:48, 25 January 2007 (UTC).

[edit] Introduction

The very first paragraph:

"A Bluetooth profile is a profile of a Bluetooth device."!!! But what, pray tell, is a PROFILE??? The sentence does not describe what a profile is.

Todd 14:22, 10 February 2007 (UTC)

Yes, I'll tag it with {{vagueintro}} for now. PS: you should add new comments to the bottom of talk pages, under their own heading. (see talk page guidelines) -- intgr 16:26, 10 February 2007 (UTC)

Thanks for responding, and for pointing out the guide for the talk page. ;-) I need to learn these things. Todd 20:08, 15 February 2007 (UTC)

To answer the question above, from my time in the Bluetooth SIG, the short definition was "A profile is a set of specifications that define protocols as well as use cases (a.k.a. users scenarios)." They picked the term profile so that people didn't think of Bluetooth as just a bunch of technical papers about how bits fly through the air. Lathe26 23:16, 3 May 2007 (UTC)

Tried to clean up the intro a bit. Less vague now? Untag? dbrashear 20:14, 22 Jan 2008 (UTC)

[edit] Multi-link

I think it has to do with profiles, so I'd like to ask here how many can Bluetooth devices can I use in the same time? Does it matter which specific Bluetooth dongle I have or only which Bluetooth version is it made of? -Lwc4life 10:26, 28 March 2007 (UTC)

In the general case, a Bluetooth master can connect with up to 7 slaves in a single piconet (the Bluetooth AM_ADDR field is only 3 bits in size and one of the value is reserved which I think is 000b). However, a Bluetooth device can be master in 1 piconet and a slave in other piconets which is called a "scatternet" scenario. Bandwidth and network management gets difficult in this scenario. Complicating this is that some devices drop in and out of the piconet to save on power. An example is when you don't type on your keyboard for a while, say 10 minutes, it will disconnect from the network and try to rejoin later on when the users starts typing again (this is why there can be a short delay when you start typing again after a long break). This means that you can be "paired" to many more than 7 devices but that only a max of 7 can be active at a time to a single master. <opinion> I won't even go into Park mode which is just messy and I'm not sure any devices on the market use this (maybe some do, but I don't know of any). </opinion> Lathe26 23:22, 3 May 2007 (UTC)

[edit] Human Interface Device Profile (HID) history

Would it be appropriate to add short blurb on the history of BT HID? For example, I know some of the early contributors and could add some text saying "so-and-so from CompanyX and so-and-so from CompanyY decided to start this effort in DD-MM-YYYY". This would be similar to some of the text in USB Human interface device. Lathe26 23:28, 3 May 2007 (UTC)

[edit] Plagiarism

The text of this page is in some parts very close to http://www.bluetooth.com/Bluetooth/Learn/Works/Profiles_Overview.htm Could someone more knowledgeable in Wikipedia's standards on plagiarism take a look at it and see if this is OK? —Preceding unsigned comment added by 194.237.142.10 (talk) 17:08, 8 October 2007 (UTC)

[edit] Advanced Audio Distribution Profile (A2DP)

The paper

http://www.microsoft.com/whdc/device/connect/bth_faq.mspx

say's Vista doesn't support A2DP, 3rd party drivers can add support.

I can't find this April Update? —Preceding unsigned comment added by 82.18.70.247 (talk) 00:22, 21 January 2008 (UTC)