RE: [802SEC] Re: Wireless LCD Projectors for use at July plenary at HR-SF
- To: "Roger B. Marks" <r.b.marks@ieee.org>
- Subject: RE: [802SEC] Re: Wireless LCD Projectors for use at July plenary at HR-SF
- From: Geoff Thompson <gthompso@nortelnetworks.com>
- Date: Tue, 01 Jul 2003 17:33:25 -0700
- Cc: <everett.o.rigsbee@boeing.com>, <billq@attglobal.net>, <dawns@facetoface-events.com>, <darcel@facetoface-events.com>, <jennifer@facetoface-events.com>, <bheile@ieee.org>, <bob@airespace.com>, <p.nikolich@ieee.org>, <stuart.kerry@philips.com>, <tgodfrey@intersil.com>, <apetrick@parkervision.com>, <donbe@microsoft.com>, <stds-802-sec@ieee.org>, <stuart@ok-brit.com>, <hworstell@research.att.com>, <rrm@research.att.com>, <mjsherman@research.att.com>, <millardo@dominetsystems.com>
- In-Reply-To: <p05200f22bb27adaef153@[132.163.48.122]>
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- Sender: owner-stds-802-sec@majordomo.ieee.org
Roger-
I would prefer a separated approach, but as closely as I can tell from the
data/product sheet on the references that you provided these two devices
are emulating display memory and would have to be fully refreshed.
I believe that we would be better off hooking a PC to the projector and
running some sort of collaboration software between PCs
Geoff
At 03:53 PM 7/1/2003 -0600, Roger B. Marks wrote:
>I am skeptical about how these things work. Most of our meeting images are
>static. If the software is smart enough to take advantage of the static
>images, it will probably be a minimal disruption to our networks. If, on
>the other hand, it's just constantly running an A to D convertor and
>throwing all the uncompressed D onto the LAN, then we'll indeed be wishing
>for 802.11e. I can imagine a great range of variability in how well these
>interfaces function. And also in how useful, or how annoying, the driver
>software is.
>
>We have a well-defined interface, so let's use it. Instead of buying the
>network bundled in the projector, I'd prefer that we optimize the
>projector and interface separately. In other words, we should buy a
>separate wireless interface and try it out. This way, we could attach the
>interface to any of our projectors, depending on our need.
>
>I checked the web and found two products like this. Both are under $300:
> http://linksys.com/products/product.asp?grid=33&scid=38&prid=412
> http://linksys.com/products/product.asp?grid=33&scid=38&prid=503
>
>If we are going to venture into wireless projector control, I prefer this
>route.
>
>Roger
>
>
>At 5:19 PM -0400 03/07/01, <mjsherman@research.att.com> wrote:
>>Hi everyone,
>>
>>So I'll add one more opinion to the pile. I think it is important that
>>we try new things and see how they work, especially if they are our own
>>technologies. If we won't buy it, who will?
>>I can see value for a projector with a wireless interface - where a guy
>>in the back of the room can quickly display their objection on the
>>screen, or where you might even be able to briefly split the screen
>>between two inputs for comparison. But frankly, I am perplexed by the
>>software and control issues - another reason why I want to try it so I
>>can see first hand if it works or not.
>>
>>Another area of personal concern for me is whether the RF environment in
>>our meetings can hack it. I'm already not very happy with the
>>performance we get out of our current WLAN without a video load.
>>802.11e (QoS) is not out yet. So, I can't wait to see what happens when
>>we add a video load in with our existing loads. Will the WLAN be able
>>to handle the load? Will other traffic in the area impact the quality
>>of the video on the projector?
>>
>>I view IEEE 802 not just as a standards development organization, but a
>>as a potential test bed for our own technologies. Actually, I wish we
>>did more testing and evaluation of the network we run here. The one
>>thing I will caution is I'm not sure myself if an investment in the
>>projector will be worth while, so don't buy more than one. I think it
>>is worth buying one though just to find out if it is worth while.
>>
>>Mat
>>
>>Matthew Sherman
>>Vice Chair, IEEE 802
>>Technology Consultant
>>Communications Technology Research
>>AT&T Labs - Shannon Laboratory
>>Room B255, Building 103
>>180 Park Avenue
>>P.O. Box 971
>>Florham Park, NJ 07932-0971
>>Phone: +1 (973) 236-6925
>>Fax: +1 (973) 360-5877
>>EMAIL: mjsherman@att.com
>>
>>
>>-----Original Message-----
>>From: Howard Frazier [mailto:millardo@dominetsystems.com]
>>Sent: Tuesday, July 01, 2003 2:08 PM
>>To: Rigsbee, Everett O
>>Cc: billq@attglobal.net; 802 @F2F Dawn S; darcel@facetoface-events.com;
>>802 @F2F Jennifer Hull; 802 Bob Heile; Bob O'Hara; Paul Nikolich
>>(E-mail); 802 Roger B. Marks; 802 Stuart J. Kerry; Tim Godfrey; 802. 11
>>Al Petrick (802-11 Al Petrick); Don Berry; 802 Exec; stuart@ok-brit.com
>>Subject: [802SEC] Re: Wireless LCD Projectors for use at July plenary at
>>HR-SF
>>
>>
>>
>>Personally, I would not pay extra $ for a projector
>>with a wireless interface. Based on bitter experience,
>>I never add software or hardware to my laptop while I
>>am traveling, so I loathe the idea of having to add
>>some new driver for this interface.
>>
>>The time required to connect a cable to a projector
>>is minimal. Time is occasionally wasted when a
>>presenter can't figure out how to toggle between
>>their laptop's LCD and the external monitor interface,
>>or when this simple action produces a "Microsoft Moment".
>>I can't see where adding a couple of layers of complexity
>>will improve the situation. For large, busy groups that
>>need to save time, the best technique is to load all
>>of the presentation materials onto one laptop, thus
>>avoiding the need to switch connections.
>>
>>In the five years that we have been buying projectors,
>>I have learned that "bells and whistles" like cameras
>>are pretty much useless. I would put a wireless interface
>>into the same category. It's just one more thing that
>>can break, requiring a potentially costly repair, and
>>taking a projector out of service.
>>
>>Let's please stick with simple, durable, bright,
>>high-resolution DLP projectors with minimal bells and whistles.
>>
>>Howard (Yes, I'm a Luddite, and proud of it) Frazier
>>
>>Rigsbee, Everett O wrote:
>>
>>> FYI- I just happened to stumble across the Epson 735c Wireless LCD
>>Projector (see attached specification sheet) and thought this might just
>>be the thing for our future meetings, but wondered if anyone has had any
>>experience with this unit, and has opinions on its suitability for use
>>at IEEE 802 plenaries and interims.
>>>
>>> It seems to be price competitive with the regular wired units, and
>>might allow a lot more flexibility in sharing an LCD projector amongst
>>several presenters.
>>>
>>> Input and opinions on this notion are encouraged.
>>> I'm working on seeing if we can get a couple of these units to use in
>>SF for evaluation purposes. Any support for this from our Epson folks
>>would be seriously appreciated. :-)
>>>
>>> Thanx, Buzz
>>> Dr. Everett O. (Buzz) Rigsbee
>>> Boeing - SSG
>>> PO Box 3707, M/S: 7M-FM
>>> Seattle, WA 98124-2207
>>> (425) 865-2443 Fx: (425) 865-6721
>>> everett.o.rigsbee@boeing.com
>>>
>>>