Bloomberg has a nice new article on the Kinect and how it was completely designed internally. Remember that Microsoft bought 3DV and Canesta way back way which had similar time of flight tech (though much lower resolution). People assumed it was for patent protection since they went with PrimeSense chips but now we're seeing the fruits of those acquisitions. It's one of the first fully internally developed silicon by Microsoft.http://www.bloomberg.com/news/2013-08-15/microsoft-s-first-chip-brings-tank-finding-design-to-xbox.html
excerpts:Microsoft’s First Chip Brings Tank-Finding Design to Xbox
Microsoft Corp. (MSFT), seeking to fend off competition for its Xbox game console by souping up the Kinect motion sensor, is tapping a new semiconductor developer: itself.
For the first time, the company will build its own processors based on an in-house design. The new chips will make Kinect more accurate and responsive using an imaging technology found in military gear, said Cyrus Bamji, who played a key role in developing the silicon architecture. Previously, Kinect relied on an off-the-shelf chip from Israel’s PrimeSense Ltd.
“We are seeing a big trend towards more of the hardware makers out there, whether it’s smartphones or whether it’s tablets, starting to bring more of that semiconductor function in-house,” said Jon Erensen, an analyst at market-research firm Gartner Inc. “It allows them to differentiate. Everybody in the market is using the same off-the-shelf processor.”Time of Flight
The Kinect chips, designed by a team mostly based in Microsoft’s Silicon Valley office, use a technology called Time of Flight that will let the sensor track minute changes in a user’s body, like finger movements and facial expressions, a much more precise system than the earlier version. That lets Microsoft eliminate some of the failings of the first Kinect, Bamji said.
Time of Flight works by bouncing photons off a person or object, and has been used by military agencies for tasks like detecting a tank hiding behind tree cover, Bamji said. Texas Instruments Inc. and Infineon Technologies AG are also developing chips using Time of Flight.Design Challenge
There’s also the challenge and cost of creating a new chip from scratch, which can run into the tens of millions of dollars and take months of testing. One mistake in design or manufacturing slip-up can cause months of delay to a final product. For a company like Microsoft, with less experience in developing chips, there’s a risk that performance may not be as expected, Gartner’s Erensen said.Taking Note
While Microsoft’s Xbox and WebTV units have previously done some work designing chips, the company has never handled this much of a chip’s design, development and assembly, said Microsoft Distinguished Engineer Nick Baker, who leads the silicon architecture and verification teams. The company has about 200 people working on microprocessors. Only the mass manufacturing for the Kinect chips has been handed off to a chip foundry, Taiwan Semiconductor Manufacturing Co.
Other groups at Microsoft are taking notice, asking the Xbox team about their work on chips, and may even pursue a greater role in customizing their own microprocessors, said Todd Holmdahl, the vice president who has overseen Xbox hardware since the development of the first version in 1999.Custom Features
The world’s largest software maker first moved into making its own computer hardware last year with a line of tablets called Surface. The company could choose to customize existing chips in order to gain attention and new features for Microsoft-powered smartphones and tablets, which have a tiny share of both those markets, Directions on Microsoft’s Sanfilippo said.
“It’s pretty likely that Microsoft will be getting more into the hardware business,” he said. “So it makes sense for them to invest more right down to the silicon so they can have proprietary features.”
That investment may be crucial to the continued success of Xbox, the bright spot among Microsoft’s consumer businesses, especially as sales of the company’s Windows personal-computer software stagnate and as Surface demand disappoints. Xbox accounted for the bulk of revenue in Microsoft’s $10.2 billion Entertainment and Devices division.
The appeal of Xbox One will rest partially on whether the new chips improve on the previous Kinect. After Nintendo Co.’s Wii introduced a handheld controller than let gamers play by swinging and moving the device, Kinect pushed the envelope further by integrating full-body motion and voice into games. For some customers, it hasn’t delivered on its initial promise.
“I’m unhappy with the way it works,” Sanfilippo said of the current Kinect. “And I’m not sure if I would want the device if I upgrade to an Xbox One. The selling point from Microsoft is that this one is more accurate and faster.”Precision Needed
The PrimeSense chip in the previous Kinect, which sold 24 million units, or about one for every three Xbox 360 machines, didn’t provide the precision and responsiveness that Microsoft needed for the device. That version has trouble reading the motions of small children, seated players and low-light situations, Holmdahl said.
The new iteration handles those situations better and can pick up even small changes, such as a finger movement, facial expressions and heart rate, he said, and has a field of view that’s 60 percent bigger than the previous Kinect.
As the new Xbox is rolled out for the holiday shopping season, Microsoft will see whether the new chips can make Kinect a bigger draw for both families and hard-core gamers -- and help justify Xbox One’s premium price.
“It’s super-important,” Holmdahl said. “We have an opportunity to change the living room.”