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Re: Bluetooth support for 2011 3D glasses
Posted: Sat Oct 01, 2011 11:39 am
by sbav1
abbynormal wrote:
It's not using bluetooth but another protocol working at 2.4gHz named ZigBee
Really? I'd like to see some evidence for that statement..
From what we know, ALL (commercially available) D-series 3D glasses are Bluetooth controlled.
ZigBee is (or perhaps was) used for fancy (RF) remotes, in high-end/flagship B/C models.
Is it able to interact with some kinds of shutter-glasses for D-series ??? I kinda doubt it..
Re: Bluetooth support for 2011 3D glasses
Posted: Sun Oct 02, 2011 12:16 am
by erdem_ua
It doesn't find my phone too since I don't set it as visible.
And I think TV is passive device. When you press button at glass, than TV detect your glass.
It means glass search the TV's network for me.
Re: Bluetooth support for 2011 3D glasses
Posted: Sun Oct 02, 2011 4:10 am
by chirkoot1
How to verify which core my bluetooth dongle is?
Re: Bluetooth support for 2011 3D glasses
Posted: Sun Oct 02, 2011 6:42 pm
by erdem_ua
Code: Select all
# hciconfig hci0 revision
hci0: Type: BR/EDR Bus: USB
BD Address: 00:10:60:AB:AE:0E ACL MTU: 192:8 SCO MTU: 64:8
HCI 16.14
Chip version: BlueCore02-External
Max key size: 56 bit
SCO mapping: HCI
Unfortunately mine one BlueCore2
Other dongle even doesn't show it's revision
Code: Select all
# hciconfig hci1 revision
Can't read version info for hci1: Connection timed out (110)
Re: Bluetooth support for 2011 3D glasses
Posted: Mon Oct 03, 2011 3:06 am
by chirkoot1
I checked online but dont find any dongle with Version 4 compliance. Any suggestions?
Re: Bluetooth support for 2011 3D glasses
Posted: Mon Oct 03, 2011 6:08 am
by erdem_ua
abbynormal wrote:That's what I thought, but I can't see the TV nor the glasses doing a bluetooth scan... that's why I thought it used zigbee.
Hey look,
thinking is different than
talking exactly. First one give ideas. Second one misdirect..
I attaching a shot:
sgg-3500-BCMchip.jpg
This glasses uses
BCM20730 Bluetooth 3.0 chip. I can't see any other chip (can't remove the plastic shield due cracking risk).
Bluetooth 3.0 is normal since this devices needed to save power. Bluetooth 3.0 has "Enhanced Power Control". But this probably means BT 2.0 sniffers doesn't work for capturing packets from this device. Or do they?
And unfortunately. there is no BT 3.0 eavesdropper. Or there is?
Also BT 3.0 features
Unicast connectionless data
Permits service data to be sent without establishing an explicit L2CAP channel. It is intended for use by applications that require low latency between user action and reconnection/transmission of data. This is only appropriate for small amounts of data.
I bet this goggles using this protocol.
When I connect glasses to PC's USB port, gives
Code: Select all
[302994.803057] usb 4-2: new full speed USB device number 98 using ohci_hcd
[302995.206138] usb 4-2: device not accepting address 98, error -62
[302995.206223] hub 4-0:1.0: unable to enumerate USB device on port 2
Means no go...
Anyway, I don't have any BT 3.0 device. It's selling from ~
$5 at ebay...
We could also eavesdrop BT device at TV with cheap hardware.
Re: Bluetooth support for 2011 3D glasses
Posted: Mon Oct 03, 2011 6:25 am
by erdem_ua
Interestingly, one Chinese corporation, Gonbes Technology, able to replicate Samsung 3D Bluetooth Glasses
here.
This make me thinking if there is a standard for this 3d glass synchronization at BT 3.0 protocol... Needed to research on it..
Re: Bluetooth support for 2011 3D glasses
Posted: Wed Oct 05, 2011 2:22 am
by chirkoot1
Any possibility to find standard used in 3d glasses to understand how to make bluetooth dongle work?