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NHK makes first successful Super Hi-Vision OTA broadcast, man cave owners giggle with glee
Fresh off from successfully shrinking its Super Hi-Vision camera, Japan's NHK is sticking another feather in its cap -- the first over-the-air broadcast of its super-duper high-resolution technology. The broadcaster says it recently managed to send a compressed Super Hi-Vision signal from the roof of its Science and Technology Research Laboratories in Tokyo to a distance about 4.2 kilometers away with no issues. NHK used two UHF channels during the experiment. To optimize and boost transmission capacity, NHK leveraged technologies such as orthogonal frequency-division multiplexing (OFDM) and multiple-input multiple-output (MIMO). Low-density parity check coding was also used for error correction. NHK has been constantly experimenting with its Super Hi-Vision high-resolution (7,680 x 4,320) video format, including a UK-to-Japan broadcast via a 24Gb/s internet connection in 2010. Folks who happen to be in Japan from May 24th to 27th can check the tech at the NHK labs' open house in Tokyo's Setagaya ward.
Qualcomm: we're flush with 4G patents
It looks like any hopes that the 4G intellectual property landscape would be a little less of a Qualcomm-controlled minefield are fading fast. Thanks in part to recent acquisitions, a senior vice president pointed out in a recent interview with IDG that the company now owns over 1,000 patents pertaining to OFDM, OFDMA, and MIMO -- technologies which'll prove crucial to 4G data, regardless of the standard(s) that ultimately win out. In other words, whether the networks of tomorrow are banging LTE, UMB, or some flavor of WiMax, Qualcomm's confident that it's in a position to cash in, just as it's doing now. Sorry, Nokia.[Via mocoNews]
IEEE pushing 802.16m WiMAX to 1Gbps, hopes to converge with 4G
If there's one thing that we'll never be satisfied with, it's finding out just how many nanoseconds we can shave off our download times from year to year, and thankfully, the IEEE seems to get that. While it has certainly taken its sweet time with 802.11n, the task force has already voted to make 100G the next Ethernet speed, and now it's pushing to make WiMAX implementations even quicker. Reportedly announced at 3GSM, the IEEE has began working on a new version of the 802.16 standard, dubbed 802.16m, which "could push data transfer speeds up to 1Gbps while maintaining backwards compatibility with existing WiMAX radios." Potentially more interesting than cheering for speed boosts is the group's outright assurance that this protocol will meet the ITU's requirements for 4G, insinuating that it should be the token choice for further 4G developments. Nevertheless, the increased bandwidth is supposedly needed due to convergence between VoIP and various forms of multimedia (IPTV, streaming video, digital downloads, etc.), and however true that may be, some skeptics are still understandably doubting the whole "backwards compatibility" aspect. Still, the IEEE hopes to have this together by "the end of 2009," but considering the team's less-than-stellar track record in the deadline department, we're not holding our collective breath.[Via DailyWireless]
