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Qualcomm’s Latest AR Glasses Reference Design Drops the Tether, Keeps the Compute

May 21, 2022 From roadtovr

Qualcomm has revealed its latest AR glasses reference design, which it offers up to other companies as a blueprint for building their own AR devices. The reference design, which gives us a strong hint at the specs and capabilities of upcoming products, continues to lean on a smartphone to do the heavy compute, but this time is based on a wireless design.

Qualcomm’s prior AR glasses reference design was based on the Snapdragon XR1 chip and called for a wired connection between a smartphone and the glasses, allowing the system to split rendering tasks between the two devices.

Now the company’s latest design, based on Snapdragon XR2, takes the wire out of the equation. But instead of going fully standalone, the new reference design continues to rely on the smartphone to handle most of the heavy rendering, but now does so over a wireless connection between the devices.

Image courtesy Qualcomm

In addition to Snapdragon XR2, the AR glasses include Qualcomm’s FastConnect 6900 chip which equips it with Wi-Fi 6E and Bluetooth 5.3. The company says the chip is designed for “ultra-low latency,” and manages less than 3ms of latency between the headset and the smartphone. The company has also announced XR-specific software for controlling its FastConnect 6900, allowing device makers to tune the wireless traffic between the devices to prioritize the most time-critical data in order to reduce instances of lag or jitter due to wireless interference.

Though a connected smartphone seems like the most obvious use-case, Qualcomm also says the glasses could just as well be paired to a Windows PC or “processing puck.”

Beyond the extra wireless tech, the company says the latest design is 40% thinner than its previous reference design. The latest version has a 1,920 × 1,080 (2MP) per-eye resolution at 90Hz. The microdisplays include a ‘no-motion-blur’ feature—which sounds like a low persistence mode designed to prevent blurring of the image during head movement. A pair of monochrome cameras are used for 6DOF tracking and an RGB camera for video or photo capture. The company didn’t mention the device’s field-of-view, so it’s unlikely to be any larger than the prior reference design at 45° diagonal.

Like its many prior reference designs, Qualcomm isn’t actually going to make and sell the AR glasses. Instead, it offers up the design and underlying technology for other companies to use as a blueprint to build their own devices (hopefully using Qualcomm’s chips!). Companies that build on Qualcomm’s blueprint usually introduce their own industrial design and custom software offering; some even customize the hardware itself, like using different displays or optics.

That makes this AR glasses reference design a pretty good snapshot of the current state of AR glasses that can be mass produced, and a glimpse of what some companies will be offering in the near future.

Qualcomm says its latest AR glasses reference design is “available for select partners,” as of today, and plans to make it more widely available “in the coming months.”

Filed Under: AR glasses, ar glasses reference design, AR Headset, News, Qualcomm, snapdragon xr2

Qualcomm & Microsoft Partner on “custom AR chips” for Next-gen, Light-weight Glasses

January 4, 2022 From roadtovr

Today during Qualcomm’s CES 2022 press conference, the company announced a partnership with fellow tech-giant Microsoft which will involve “designing custom AR chips and integrating software platforms.”

Qualcomm and Microsoft today strengthened their growing relationship in the XR space with a new partnership announcement. While Microsoft has already relied on Qualcomm to supply the Snapdragon chips found in its latest HoloLens 2 headset, now the companies indicate plans to work more closely together on components for future AR devices.

“This collaboration reflects the next step in both companies’ shared commitment to XR and the metaverse,” said Hugo Swart, vice president of XR at Qualcomm. “Qualcomm Technologies’ core XR strategy has always been delivering the most cutting-edge
technology, purpose-built XR chipsets and enabling the ecosystem with our software platforms and hardware reference designs. We are thrilled to work with Microsoft to help expand and scale the adoption of AR hardware and software across the entire industry.”

Specifically Qualcomm says it will be working with Microsoft on “developing custom AR chips to enable a new wave of power efficient, lightweight AR glasses to deliver rich and immersive experiences.” Further, the announcement reveals plans to integrate Microsoft Mesh—the company’s multi-user XR foundation—with Qualcomm’s Snapdragon Spaces XR development tools.

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Qualcomm has established itself as an early leader in the growing XR space by leveraging its expertise in smartphone chip design to create the Snapdragon XR1 and XR2 chips which now power most of the leading standalone XR devices.

Ostensibly the company already has an XR3 chip in the works, so it isn’t clear if the “custom chips” that will result from the partnership will basically mean that Microsoft has more say over what XR3 ultimately look like, or it if it will get its own custom chip that’s exclusive for its own uses in devices like HoloLens 3.

Filed Under: AR, CES 2022, Microsoft, News, Qualcomm, snapdragon xr1, snapdragon xr2, XR

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