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Tag Archives: communications
On the road to holographic video: Improvement in holographic telepresence
Holographic video display…..Credit: University of Arizona A video screen that refreshes the image every two seconds doesn’t do wonders for motion or animation, but it’s a darned sight better than three minutes between refresh. That’s the progress made by Nasser Peyghambarian and Pierre-Alexandre Blanche at the College of Optical Sciences at the University of Arizona [...]
Posted in News: Communications Also tagged 3-D, hogel, hologram, holograph, LCD, pixel, Star Wars, telepresence, three dimensional Leave a comment
Coming up: Body-to-Body networks (BBN)
Try this idea on for size: Built into clothes, clip-on devices, hand-held devices, or eventually implanted devices – tiny, very low wattage transmitters to become part of a “Body-to-Body Network” or BBN. Not so keen on it? What if you got a reduction in monthly cost of your telephone communications for becoming a participating transmitter? [...]
Posted in Impact: Communications Also tagged BBN, body worn, body-to-body, network, transmitter Leave a comment
Surrogates
We get it: Surrogates (robots) bad; being human good. In fact, I’d wager most people more than get it before the opening credits are over. The movie Surrogates doesn’t hide much. You know from the start that the Bruce Willis character, Tom Greer, will come out on top…not just survive but be righteous. You know [...]
Posted in Review Also tagged Avatar, Bruce Willis, Hollywood, movie, murder mystery, robot, science fiction Leave a comment
Internet over copper telephone lines: Squeezing out more speed
Eventually the world of communications will be glass – fiber optic cables. However, that will be a long and costly transition. Meanwhile, much of the world’s communications still runs on copper, the copper of POTS (the Plain Old Telephone System). Given that reality, one of the obvious things to do is squeeze as much transmission [...]
Posted in News: Communications Also tagged bonding, copper line, DSL, DSL phantom mode, fiber-optic, Internet, POTS, transmission speed, vectoring Leave a comment
Graphene in a communications context
News stories about using graphene in computers appear all the time. Less often, there are stories about graphene used in communications. This will probably change. Graphene is carbon, a specific form of carbon related to graphite (as in the lead of pencils). Graphene is graphite in sheets, very thin sheets precisely one carbon atom thick. [...]
Posted in News: Communications Also tagged electron-hole pairs, fiber-optic, graphene, IBM, nanotechnology, photodetector, photon, switching Leave a comment
Microtelecom – where few phones have gone before
It’s called synergy, combining the technology of solar cells with the technology of a low wattage cell-phone base station. It’s also called ‘microtelecom’ – a telephone network built with minimal requirements for energy, technical knowhow, and money. An example is the work of VNL in Haryana, India, which is rolling out its ambitious “WorldGSM” cellular [...]
Posted in Impact: Communications Also tagged cell-phones, GSM, microfinance, microtelephone, solar energy Leave a comment
A lasing germanium
Germanium, a semiconducting element, is not supposed to lase. That is, when it gets its electrons excited, they go flying off as heat – not light. So the conventional wisdom in microelectronic circles (and textbooks) is that germanium does not lase – and can’t be made to work in a laser. This was unfortunate, because [...]
Posted in News: Communications Also tagged gallium arsenide, germanium, laser, MIT, optical computing, photons, semiconductor Leave a comment
The borderland of net neutrality
Thank goodness the Internet is no longer an American plaything. I know, however, that what happens to the Internet in the United States is still important to what happens to the Internet elsewhere. I’m thinking particularly about the issue of Net Neutrality, which surfaces with some regularity in the U.S. and more often now in [...]
Posted in Essay Also tagged consumer benefit, government policy, Internet, net neutrality, routers Leave a comment
The Internet at forty
Forty years old doesn’t mean much, not even for people. For the Internet, it really means next to nothing, other than a being kind of a marker. I suppose you could say, at least, that at forty the Internet is not new anymore. For most people the novelty of the Internet wore off years ago. [...]
The Internet at Forty: URLs of character
There’s been some hoopla about the 40th anniversary of the Internet (precisely defined from the first Arpanet transmission October 29, 1969). Forty is not exactly a ripe old age. We need to appreciate that the Internet is neither old nor ripe. It continues to grow and evolve. For example, on October 30th ICANN, the custodian [...]
Posted in Impact: Communications Also tagged domain name, ICANN, Internet, language, network, URL Leave a comment
Better communications: One laser – 26 Terabits per second, a new record