DEMO Spring: Quantum Dots About to Move into Camera Sensors

InVisage Technologies unveils a new digital film

1 min read
DEMO Spring: Quantum Dots About to Move into Camera Sensors

When I scanned through the exhibitor list at Demo Spring in Palm Desert, Calif., InVisage Technologies, a company promising a leap forward in camera sensor technologies with paint-on quantum dot technology, immediately went to the top of my "gotta check this out" list. I was even more intrigued to discover that their Chief Technology Officer, Ted Sargent, had written an article for IEEE Spectrum's February issue explaining the technology. ("Connecting the Quantum Dots.") He hadn't happened to mention that he had a little company about to introduce image sensors into the cell phone market.

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A Circuit to Boost Battery Life

Digital low-dropout voltage regulators will save time, money, and power

11 min read
Image of a battery held sideways by pliers on each side.
Edmon de Haro

YOU'VE PROBABLY PLAYED hundreds, maybe thousands, of videos on your smartphone. But have you ever thought about what happens when you press “play”?

The instant you touch that little triangle, many things happen at once. In microseconds, idle compute cores on your phone's processor spring to life. As they do so, their voltages and clock frequencies shoot up to ensure that the video decompresses and displays without delay. Meanwhile, other cores, running tasks in the background, throttle down. Charge surges into the active cores' millions of transistors and slows to a trickle in the newly idled ones.

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