PPCzone.net

NTT DoCoMo, Inc. announced today that it has succeeded with the 100Mbps-downlink and 20Mbps-uplink transmission experiment under an indoor environment using an experimental system for fourth-generation (4G) mobile communications.

Since April, 1998, DoCoMo has been conducting research on 4G mobile communications. In the course of this research, DoCoMo has conducted indoor trials on an experimental system that incorporates base station and mobile station equipment to evaluate key technologies in 4G packet wireless access and demonstrate its benefit by employing the implemented experimental system.

4G mobile communications system offering high-speed transmission of large-capacity data with wide coverage requires a bandwidth of approximately 100 MHz. When using a channel with such a broad bandwidth, transmission quality required can be impaired by a large number of multipaths, that is, the occurrence of secondary signals reflected off buildings, mountains and other surrounding objects.

Source:PPcnewswire
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“Dell Computer is planning to unveil two handhelds–one priced at $199–based on Microsoft’s Pocket PC 2002 operating system this fall, according to sources.

Both handhelds are expected to be put on display at the Comdex Fall 2002 tradeshow in November, sources said. One handheld, which will incorporate a 300MHz Intel XScale processor, will sell for $199. The other handheld will include a 400MHz Intel XScale processor and sell for $299.

Separately, an internal Dell document found on the Internet described two similar devices, but didn’t mention the devices’ cost. Dell spokesman Jess Blackburn confirmed that the documents were from the company, yet cautioned that the specifications may not be final. He would not comment on pricing.

Dell has said previously it plans to enter the handheld market. Blackburn said the company has committed to launching a handheld in the fourth quarter.

“That is still our plan,” he said.

Priced at $199 and $299, the new handhelds set a new pricing standard for devices using Microsoft’s Pocket PC 2002 operating system. Other device makers have recently shown interest in lowering prices for such handhelds, and for good reason; some popular Pocket PC-based devices can sell for more than $600. ”

Source:Zdnet.com
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“Imagine a CD with a storage capacity not of 650 MB but 650 million MB. Such a storage capacity is theoretically possible because of experiments using individual atoms to store data.

But do not expect it soon; the gap between theory and practice is wide.

In 1959, physicist Richard Feynman pointed out that all the words written in the history of the world could be contained in a cube of material one tenth of a millimetre wide – provided those words were written with atoms.

Now, scientists have done just that, creating an atomic-scale memory by using atoms of silicon in place of the 1s and 0s that computers use to store data.

Proof of concept ”

Full story @ Twomobile.com

Source:MyPDAcafe.com
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The Laser Projection Display from Symbol Technologies adds a new dimension to mobile device design. By scanning a laser beam along two orthogonal directions, a high quality image is created on any surface, at any distance, without refocusing. Since the miniature, low power LPD module can be embedded in a variety of portable devices, this technology is poised to revolutionize the display industry.

Potential Applications

• Miniature projectors



• Auxiliary displays for laptops, PDAs or cell phones



• E-signage



• Pocket projection TV



• Games and toys