Bell Labs’ lensless camera takes photos with a tiny amount of data

Bell Labs' lensless camera takes photos with a tiny amount of data

Although there have been attempts at lensless cameras before, few of them would replace our point-and-shoots when they're frequently expensive, or capture photos outside of the visible light spectrum. We shouldn't have either of those problems with Bell Labs' new prototype. The experiment uses an LCD as a grid of apertures that filter the light reaching a sensor. As that sensor can piece together an image simply by grabbing random aperture samples and correlating the data, it only needs a sliver of the usual information to produce a usable shot. The lens-free, mostly off-the-shelf approach could lower the costs of both the sensor and the overall camera, but it could also lead to simpler comparison tools: the correlation makes it easier to tell if an object is missing, for example. Bell Labs hasn't talked about any production plans, but we have a hunch that Alcatel-Lucent would rather not let its research wing's technology go to waste.

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Via: MIT Technology Review

Source: Cornell University Library

Bell Labs doubles beams in fiber optic lines to reach 400Gbps on a global scale

Bell Labs doubles light in fiber optic lines to reach greater distances

It's comparatively easy to run fiber optic lines at high speeds; it's another matter to sustain that pace between continents. Alcatel-Lucent's Bell Labs has found a way to go that extreme distance by relying on the basic concept behind noise-cancelling headphones. When the researchers send data across two light beams in opposing phases, they can superimpose the signals and neutralize the distortion that would normally occur at long ranges. Such clean output lets Bell Labs ramp up the signal strength and maintain high speeds across whole oceans: its test pushed 400Gbps through 7,954 miles of fiber. There's no word on how soon we'll see twin-light technique put into practice, although we suspect that a networking giant like Alcatel-Lucent wants the extra bandwidth as quickly as possible.

[Image credit: JL Hopgood, Flickr]

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Via: BBC News, The Verge

Source: Nature Photonics

The transistor turns 65, awaits AARP card

The transistor turns 65, awaits AARP card

Without the transistor our modern world would not be possible. It is, arguably, the most important scientific advance of the 20th century and this weekend it officially enters its golden years. 65 years ago William Shockley, John Bardeen and Walter Brattain (above) worked together to create the world's first point-contact transistor, a direct precursor to the electronic component that powers every thing from radios and microwaves, to super computers and smartphones. The first successful experiment was performed on December 16th in 1947, though work had begun decades before, with the FET (field-effect transistor) first being patented in 1925. It wasn't until after World War II that Bell Labs started putting serious work into the technology eventually resulting in the basic building block of logic circuits.

[Photo courtesy of Alcatel-Lucent/Bell Labs]

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Via: The Register

Meet your desktop’s ancestors: AT&T exhumes footage of the Bell Blit (video)

AT&T exhumes footage of the Bell Blit, shows you where your desktop came from

AT&T's video archives are rich seams of juicy historical tidbits, and today's offering is a fine example. It's sharing footage of the Bell Blit, a graphic interface that Bell Labs developed after being inspired by the Xerox Alto. Originally named the Jerq, it was created by Rob Pike and Bart Locanthi to have the same usability as the Alto, but with "the processing power of a 1981 computer." Watch, as the narrator marvels at being able to use multiple windows at once, playing Asteroids while his debugging software runs in the background on that futuristic green-and-black display. The next time we get annoyed that Crysis isn't running as fast as you'd like it to, just remember how bad the geeks of yesteryear had it.

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Meet your desktop's ancestors: AT&T exhumes footage of the Bell Blit (video) originally appeared on Engadget on Wed, 29 Aug 2012 16:53:00 EDT. Please see our terms for use of feeds.

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Engadget Primed: digital audio basics

Primed goes in-depth on the technobabble you hear on Engadget every day -- we dig deep into each topic's history and how it benefits our lives. You can follow the series here. Looking to suggest a piece of technology for us to break down? Drop us a line at primed *at* engadget *dawt* com.

Primed

Digital audio. There's a very good chance that you've enjoyed some today. It's one of the more universal aspects of technology. In fact, perhaps the more relevant question would be, when was the last time you listened to an analog format? The truth, for many, will be quite some time ago -- vinyl purists and the odd cassette fanatic aside. Yet, despite its ubiquity, there's a lot of misunderstanding and confusion about digital audio. Some believe it'll never match analog for true fidelity, some assert quite the opposite. Many lament the lack of a tactile format, while others love the portability that comes with zeros and ones.

In this installment of Primed, we take a look at the history of digital sound, as well as provide an introduction to some of its key components, with the view to helping us understand it better. Wondering what bitrate to encode your MP3s at? Or whether you should choose a 96 or 44.1KHz sample rate? We thought as much. By the time we're through, these questions should no longer lay heavy on your mind, and you can enjoy that latest Knife Party, or Britney track as much as its bit depth allows. What's bit depth you say? Well, read on to find out...

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Engadget Primed: digital audio basics originally appeared on Engadget on Thu, 19 Jul 2012 13:00:00 EDT. Please see our terms for use of feeds.

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July 12th, 1962: the day two continents smiled at each other

July 12th, 1962 the beginning of satellite TV, the end of islands

We'd probably all agree the Internet is the real revolution of the modern era, but today marks an older, parallel milestone that also brims with significance. On July 10th, 1962 -- back when JFK fretted over Russian missiles in Cuba and Bob Dylan sang In My Time of Dying -- NASA pelted the Telstar 1 satellite out into orbit, following a team effort by AT&T, Bell Labs and the British and French post offices. Two days later, the world's first transatlantic TV signal made its way from Maine to Brittany, via a quick stop-over in the heavens, and a new age of international communication was born. Kennedy forgot his troubles for a moment to tidy his hair and grin at France, who replied with a chirpy performance by Yves Montand. It didn't last long: Telstar 1 gave up its spherical ghost after just a few months and 400 transmissions, but by then, of course, the message had been delivered.

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July 12th, 1962: the day two continents smiled at each other originally appeared on Engadget on Thu, 12 Jul 2012 07:01:00 EDT. Please see our terms for use of feeds.

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