Documents at the Global Certification Forum and FCC, which were first spotted by Notebook Italia, have revealed the existence of a second Nvidia Shield device. Shield is Nvidia's Android-based gaming system that merges a full-size controller with a 5-inch screen. This time around, it sounds like Nvidia is going with a bigger device than the original Shield, as the GCF docs call the product the "SHIELD Tablet."

Trying to imagine a tablet version of the controller-plus-screen clamshell is pretty difficult, but if the drawings in the FCC documents are accurate, it looks like a normal tablet without an integrated controller.

The first Shield was designed to be a gaming powerhouse and was one of the first (and only) devices to use Nvidia's Tegra 4 SoC. With Nvidia's Tegra K1 recently hitting the market, we wouldn't be surprised to see it in the new tablet.

There's not much information to be gleaned from the documents other than the news that a new Shield is coming. We'll keep our eyes peeled for an official announcement.