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MediaTek outs royalty-free cross-device sharing tech

Posted: 03 Mar 2015 ?? ?Print Version ?Bookmark and Share

Keywords:MediaTek? CrossMount? multimedia content? DLNA? WiFi?

CrossMount, according to Jou, uses Wi-Fi for connectivity among devices.

Similarly, someone watching TV in the bedroom might wear a headset so that another person in the room won't be disturbed, said Jou. "But think about it, everyone these days has a mobile phone that comes with a headset. Rather than fetching a new headset for the TV, you could use your phone headset to listen to TV with CrossMount technology."

The best part, said the MediaTek CTO, is when CrossMount combines hardware resources among devices to improve performance. Pointing out the press conference room, essentially a cave, Jou said, "Cell phone coverage in a room like this is not good. You may have a packet-error rate of 10 per cent, for example."

But putting two cell phones together, each with a 10 per cent packet-error rate, via CrossMount, the combination of two PHY portions reduces errors to 1 per cent, Jou said. At that rate, a voice call or even video conferencing, is possible, Jou explained.

Jou gave another example. "At a birthday party, for example, several people are using different smartphones, camera and video camcorders to capture the moment the candles are blown out," said Jou. "With CrossMount, you can create a 360-degree movie by combining different footages."

Even though MediaTek's chips contain software hooks, Jou acknowledged that not every CrossMount feature is developed yet. Those that are harder to implement are pooling smartphone modem capabilities, for example. "It will take a while to develop those, because it involves a lot of physical layer definitions as well."

Licensing-free SDK

Asked if MediaTek is planning to license CrossMount, Jou said that's not the plan. "The purpose is to drive its adoption and build a larger ecosystem." MediaTek "will publish a license-free SDK," he said.

In other words, MediaTek has no intention to make CrossMount a proprietary selling point of its own to promote its chips. With a license-free SDK, TVs without MediaTek's chips could also add CrossMount features.

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