NVIDIA has just announced Miracast, a WiFi-Direct based protocol that allows phones, tablets and other computing devices to clone a live mobile device display to a compatible TV. This lets mobile applications being displayed effortlessly onto a big TV. Wi-Fi Certified Miracast devices make use of a Wi-Fi connection to deliver audio and video content from one device to another, without cables or a connection to an existing Wi-Fi network.

These devices connect directly, so you can do things like watch videos from a smartphone on a big screen television or share a laptop screen with the conference room projector to collaborate in real-time. Televisions, set-top boxes, notebooks, handsets and tablets are among the device types which will be certified. Pretty much any of the current crop of Android devices could potentially see Miracast support, but they will need to receive a software update to enable it.


Previously, we have seen Qualcomm announce Miracast support for devices powered by their Snapdragon S4 chips and Texas Instruments has said they will support it on their OMAP4 and upcoming OMAP5 chips.

Current HDTVs and other displays will be able to directly connect to Miracast devices with the addition of a small dongle that plugs into an HDMI port. We expect most of these dongles will retail for $80-100, but prices should dip to as low as $50 once the Miracast standard gains popularity.

Additionally, the chip’s multimedia architecture can decide how to best allocate system resources based on the type of content being transmitted. For instance, if it detects an HD video or 3D game, it’ll make tweaks to reduce latency. Nvidia doesn’t mention precisely how much latency is involved, but there’s relatively little information available about Miracast in general and that will likely remain true until it launches in August.

The latency seems pretty impressive in the above video and the company didn’t hesitate to boast about Miracast’s potential for gaming, noting that Tegra’s snappy CPU and GPU can be used with the wireless technology to play mobile games on a big screen. “We’re not just talking about flinging Angry Birds,” Nvidia wrote, “but racing a super-charged jet ski in the game Riptide THD and playing heart-pounding first-person shooter games like Shadowgun THD.”

Source: Nvidia