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Videophones Revisited
amitupadhyay7 writes "The NYTimes is running a story on Video Phones. ...more than 30 percent of American homes now have much faster 'pipes' coming into their homes: broadband Internet. Apple exploited this situation, for example, with its $140 iSight camera, a pocketcam that clips onto a Macintosh screen for free, high-quality Internet video calls. Now a company called Viseon has taken the next step by creating an actual video telephone called the VisiFone... in a related news Cisco is adding video to their IP phones. Telcos' response so far seems constructive."
I own one of those cameras for My g5. It may be more expensive than regular web cameras, but it is a really high quality device. Unfortunatley it dosent work under Linux and Windows, and it is one of the few cameras that work under OSX. Its a shame that apple didn't make it easier for Web cams to work under OSX, but if you can afford it, get it. I have used it to collarberate in developing my Apple Programs with my outsourced team, seeing your developers halfway around the world makes it easier to work with them!
Screenshot of My G5 desktop!
How do you know it is *NOT* watching you while hanged up?
Because all the cameras will probably copy the Apple iSight, where the camera's "off" switch also closes an opaque iris over the lens.
iSight works under linux and can be easily configured with Coriander. I use it with Gnome Meeting under Suse Linux 9.
WinXP identifies iSight as a generic firewire camera.
It is true that only the video works under Linux and win, iSight microphone is not recognized. This is no big deal. Apple added a microphone to iSight because many mac laptops do not have an audion-in port (not having an audio-in port is a stupid decision, people have to buy expensive usb sound devices, etc.)
Most USB cameras without Mac divers from their manufacturers can be used without problems under OSX with macam,an opensource package with includes usb camera drivers for OSX.
And for those who can't understand sarcasm: Funny mods don't give karma. Read the FAQ. (It does seem a little unfair though, because after you've got 4 funny mods, you can't get any other mods, so can't get any karma...)
I carry a videophone around with me. Europe's had mobile videophone's for what, 2 years now?
http://www.three.co.uk
It would of course be nice if the landline telcos could get their arses into gear and start implementing the same standards. Who wants to put money on the landline videophones (http://www.bt.com/videophone/) being imcompatible with the mobile ones?
Government of the people, by corporate executives, for corporate profits.
Indeed it's already hard enough for many folks with audio only. I can't count the number of times I've had to ask conference callers to stop eating, or in a few cases that perhaps they could try to pee quieter and have waited 'til after the call to flush.
Videophones themselves have had numerous fals starts. The Bell demos are classics from the 60's (particularly memorable in the film 2001.) Then in the late 80's and early 90's home video phone models briefly became somewhat popular. Rarely successfully interoperable they seemed to sell mostly to gadget folks wanting distant grandkids and grandparents to see each other.
Then came the broadband/instant messaging explosion in the late 90's and along with it lots of webcams. Offering small blurry jerky windows the PC-tethered cams allowed a few families and travelers to wave at each other. It also sparked an entire new market of slo-mo sexual voyeurism.
Now broadband has fairly wide market penetration, the camera sensors have improved, new codecs stream well, and hardware connections have moved from serial to USB 1 to USB 2 or FireWire/IEEE 1394. We even have ubiquitous clients like AOL Instant Messenger, MS Messenger, and Yahoo! Messenger, all including video chat in their free clients.
Cellphones have also gotten into the game with still cameras now standard on many models and live cameras starting to hit the market. "MMS" is being ballyhooed as the next text-messaging. However what appears to be lagging is the new video-etiquette.
It used to be tourists busily video documenting their vacations that got on everyone's nerves. Then it was instant messaging folks who often annoying with trying to strike up light chat when one was deep in thought or a meeting, or vice versa. Or being offended at others who were accessible but not immediately available.
then came the invasion of cheap digital cameras. It's thankfully dying down now but for a few years one couldn't turn around at a party or conference without a flash going off in one's eyes and knowledge that like it or not, welcome or not, your stunned countenance was going to show up on a photo album or web page somewhere.
Of course today's universal complaint is cellphone users. Yakking away in previously quiet places, blithely wandering from road lane to road lane, standing in aisles oblivious to folks trying to pass. Obtrusively sharing their no-longer-private lives with everyone around whether we care to hear them or not.
So how will we stay out of the picture? It's bad enough with stills being taken, overtly and surreptiously, with phonecams. Now they're gonna be making mini-movies. Instead of having to take a series of shots phonecam wielders will be able to pan a room and document everyone without any opportunity for thanks-but-no.
"Why won't you turn your cam on?" "Are you really where you say you are?" "Johnson, starting next week we want you to sit in front of these lights and put some powder on that shine, you'll be taking video calls. Oh, and go shopping, tests show our clients respond well to blue shirts." "What do you mean you left your cam on the whole time we were ... ?!!!"
Plus audio conference calls and endless PowerPoint presentations are bad enough, now we'll have to see every schmoo who dreampt of being a TV newsman share their talents at every opportunity. Indeed no longer will sending out a report be enough, we'll have to "present" them too. Today's video conference rooms will bloom into tomorow's full in-office studios.
Of course there are upsides too. Now we'll be able to see our loved ones when we miss them. Also walk folks through things remotely "Let me see it - yep, that's it." And the idea of s
I don't read ACs: If a post isn't worth so much as a nom de plume to its author then I wont bother either.
The bell system had working video phone technology in the mid 1950s, began field trails in the 1960s, and by late 1960s and through 1970s they tried to find market for it. But it never really got beyond the trail phase. Even the users who used the system during the trails (for free or at a greatly reduced cost), rarely deiced to continue using them. Mainly because of the very high cost of the service.
The high cost came from the fact that it required a completely separate network to move the video signals, a separate 4 wire subscriber loop with special equalizes added to allow for video transmission, a dedicated video switch at the central office, a dedicated video PBX switch for business customers, and a lot of bandwidth on trunks for interoffice and long distance calls. The plan for long distance calls was a very advanced for the time(late 1960s), the analog picturephone signal would be digitized with a 6.3megabits/sec bitrate, and sent over the long distance network. That's quite a bit of bandwidth to have to give to one subscriber, and probably would be a very expensive call. One attempt to try the service more viable to business customers, was to use the picturephone to interact with a computer system, input was done via touch tone dial pad, and out put would be displayed on the screen.
There is special issue of the Bell Laboratories Record, from may/june of 1969 that is dedicated to the picturephone, and all technology, research, and network designs are detailed.
Indeed, with 3G phones now readily available I'm not sure I see the point of making the old land lines do it... My next phone will be a 3G probably (purely for the fast internet access, rather than the video, but it's a cool bonus).