USB 3.0 SuperSpeed update to eliminate need for chargers

While the imminent arrival of next-gen USB and Thunderbolt interfaces is no longer fresh news, ComputerWorld brings to attention one potentially revolutionary detail: the next iteration of USB will deliver enough juice to effectively power any device without the aid of unsightly wall-warts.

To do this, USB 3.0's move from 5Gbps to 10Gbps will be accompanied by significant bump (pdf) in power delivery -- 100 watts instead of just 10 watts. With that kind of juice, everything from full-size external hard drives to displays -- and even laptops -- could all fall within the purview of USB's new-found bus power. 

That's an enormous improvement over today's limitations where small devices like external HDDs, cell phones and tablets can push power draw limits.

One example shown at Intel's Developer Forum was of a Lenovo laptop, a LCD monitor and other peripherals all simultaneously being powered by a USB SuperSpeed hub.

To help make certain things are safe and standardized, USB 3.0 is expected to have five different power profiles (pdf):

Profile 1: 5V @ 2.0AProfile 2: 5V @ 2.0A or 12v @1.5AProfile 3: 5V @ 2.0A, 12V @ 3AProfile 4: 5V @ 2.0A, 12V or 20V at 3AProfile 5 : 5V @ 2.0A, 12V or 20V at 5A

While convenience is an obvious benefit of increasing the power output for USB, there is one less conspicuous bonus: greener electronics. Billions of power adapters for portable electronics are chucked into the trash each year. USB's pending upgrade stands to reduce that number by a significant margin.

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By: Unknown On 9:14 PM

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Red unveils the Motion mount for Epic and Scarlet cameras to eliminate CMOS rolling shutter

Red has just announced the Red Motion lens mounting system for Epic and Scarlet motion camera systems that'll eliminate one of their chief snags: the dreaded CMOS rolling shutter. Though details are scant, it seems it'll do that in a similar manner to the Tessive system (see More Coverage), where a second liquid crystal shutter is placed in front of the main sensor and timed to engage only when the camera's CMOS is fully "open." That'll help eliminate artifacts like skew / judder in pans, repeating motion artifacts (think distorted propellers) and flicker from lights or displays, among others. The mount also brings an 8x electronic ND filter adjustable to 1/100th of an f-stop, partially negating the need for a matte-box in bright lighting situations. The Red Motion's drawback is that it'll cost you a stop of speed even when the ND is off, meaning you may have to change to a classic mount in low-light situations. Red's showing it now at its NAB booth-cum-factory and it'll ship out this fall in PL-mount form (with a Canon mount arriving later) for $4,500. Check the source for more discussion.

Source: Red

More Coverage: Tessive

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By: Unknown On 10:45 PM

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