Lexar launches 45Mbps UDMA cards
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Promise of less transfer time Lexar has launched a range of Ultra Direct Memory Access (UDMA) cards that write data at 45MB per second potentially reducing download time for digital photos considerably.â¦
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Japanese operator NTT DoCoMo announced today that it has achieved high-speed packet transmission 1Gbps in the downlink in a laboratory experiment using 4G mobile radio access equipment.
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High Efficiency codec recommended to network, content providers
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If you don't mind waiting out a $50 rebate, you can get a Lexmark Wi-Fi inkjet printer for $29.99 shipped from Circuit City.
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(InfoWorld) - NTT DoCoMo came close to hitting another data transmission milestone in its research into next-generation cellular telephone systems during an experiment conducted in Japan on Dec. 25 last year. The company, Japan's leading cellular carrier, managed to transmit data at close to 5GbpsÂ to a receiver moving at 10 kilometers per hour, said Yoshiki Kakuda, a spokesman for the Tokyo company. He said the company's public relations department didn't know the exact speed achieved but that it was close to the 5Gbps mark. About a year earlier NTT DoCoMo succeeded inÂ transmitting data at 2.5GbpsÂ and this time managed to double that by increasing the number of MIMO (multiple in multiple out) transmitting and receiving antennas from six to 12 each and using better signal processing in the receiver. MIMO involves sending data using multiple antennas to increase the total throughput. The result was a doubling in the amount of data transmitted in the same 100MHz chunk of radio spectrum. Details of the experiment will be detailed at next week's 3GSM World Congress in Barcelona, Spain. NTT DoCoMo has been working on what it calls 4G (fourth-generation) technology for close to 10 years but the technology remains some way from commercialization. The carrier had previously said it plans to launch 4G in Japan around 2010 but recently indicated it plans to wring more speed out of its WCDMA (Wideband Code Division Multiple Access) 3G network before switching to a new technology. The carrier plans to launch a "Super 3G (third-generation)" service around 2010 that will offer data transmission at around 100Mbps. When NTT DoCoMo launched its 3G network in 2001, it could carry data at 384Kbps but that was recently raised to 3.6Mbps with the launch of an upgrade called HSDPA (high-speed downlink packet access). Carriers in other countries are also deploying the faster technology on their networks.
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Based on a CDMA EV-DO (Evolution-Data Optimized) 3G network, Verizon&#39;s BroadbandAccess promisses speeds of 300-500kbps. The company announced BroadbandAccess will be available in 13 major metropolitan markets
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Seoul, South Korea-based Samsung Electronics Co. Ltd. has begun shipping a 512Mbit GDDR2 memory device, one it claims is the most advanced graphics double-data-rate synchronous DRAM available.
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Electronic devices are starting to come equipped with a short-range, high-speed wireless radio technology known as ultrawideband.
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A CALIFORNIAN vendor of flash cards SanDisk has released new memory cards that they say will make a big splash in consumer gizmos like digital cameras and cell phones.
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In papers presented at the International Solid State Circuits Conference (ISSCC) today, IBM (NYSE: IBM) revealed a first-of-its-kind, on-chip memory technology that features the fastest access times ever recorded in eDRAM (embedded dynamic random access memory).
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The adapter works with the recently launched Gigaset C340/345 and Gigaset CX340/345isdn, Gigaset S440/445 and Gigaset SX440/445isdn, Gigaset S645 and Gigaset SL440.
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Faster ADSL2+ service promises 8M to 15Mbps of dedicated Internet access in 11 markets.
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Pricey Product will offer low error rate, company says
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Backers say a new electrical specification will see the speed of the data-interfacing standard rise from 800Mbps to 3.2Gbps.
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(InfoWorld) - Verizon Wireless on Thursday unveiled its first deployments of a faster mobile broadband service that multiplies speeds upstream to the Internet. The carrier announced five areas where Revision A of its EV-DO (Evolution-Data Optimized) technology is commercially available. Verizon already has EV-DO in places across the country, but in a version that offers upload speed of less than 100Kbps. Revision A delivers between 300Kbps and 400Kbps upstream, according to Verizon. Downstream speed goes up with the new version, too, but less dramatically: Verizon says 450Kbps-800Kbps, versus about 400Kbps-700Kbps. EV-DO is one of two main families of 3G technology, going up against WCDMA (Wideband CDMA), which is being adopted in increasingly fast iterations by carriers that have used the popular GSM (Global System for Mobile Communications) cell-phone system. Both are among a proliferation of emerging wireless technologies, including Wi-Fi and WiMax, that are expected to come in handy for users in different situations. But mobile operators in the U.S. and most other countries are still working on getting users to adopt the new services in large numbers. Verizon's network has the new technology in parts of Massachusetts, including Boston and its suburbs; Chicago, Gary, Indiana, and suburbs; Salt Lake City and other cities in Utah; the Richmond and Hampton Roads, Virginia, areas; and throughout the broadband coverage area in Florida. To take advantage of the new speed, which is offered as part of the carrier's existing BroadbandAccess service, subscribers will need compatible devices, two of which will go on sale Friday at Verizon's Web site. The company will be selling the USB720 modem, which plugs into a PC via a USB interface, and the AirCard 595, which slides into the PC Card slot on a notebook. Both are available immediately through Verizon's business sales channels. Verizon is the biggest U.S. carrier with EV-DO, but rival Sprint NextelÂ is farther along in upgrading to the new, faster version. Sprint said Tuesday it can reach 95 million people in 24 major markets with Revision A. Sprint first rolled out the new technology in October and most recently added South Florida, Portland, Oregon and Puerto Rico to its coverage area. There are several Revision A client devices available for Sprint's network, including three PC Cards and a USB modem, as well as stand-alone modems and a Sony notebook.
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DSL at 3mbps debuts in areas within company's existing footprint.
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(InfoWorld) - Researchers from Siemens have successfully tested technology that not only increases the speed of passive optical broadband connections to the home or office but also the radius of coverage. The team of researchers, sponsored by the European Union, achieved downstream transmission rate of 10Gbps and upstream speed of 2.5Gbps over a passive optical access network, Siemens said Monday. By comparison, current gigabit passive optical network (GPON) technology supports downstream data rates of 2.5G bps and upstream rates of 1.2G bps. In addition, the researchers were able to extend the distance between the hub and subscribers, the equivalent of the "local loop" in copper networks, from 20 kilometers to 100 kilometers. The number of subscriber lines per splitter, where the optical signal is divided up to serve more destinations, was also expanded from 64 to 512. Numerous operators are keen to deploy high-speed broadband access systems that offer far greater speed than DSL (Digital Subscriber Line) technology, which uses existing copper twisted pairs to provide data rates of up to 50Mbps, Siemens said. Services such as VOD (video-on-demand) and HDTV (high-definition TV) perform best when delivered over fiber-optic subscriber lines. At the same, new GPON systems eliminate the need for aggregation devices commonly used to collect and distribute data traffic locally. In the future, operators will be able to connect subscribers directly to the core network, Siemens said. Earlier this year, Siemens researchers achieved a transmission speed of 107Gbps over a single optical fiber. The speed, which the company claimsÂ sets a recordÂ for electrical processing of data through a fiber-optic cable, was reached over a 100-mile route. Siemens has developed a new transmission and receiving system that is able to process data directly before and after its conversion into optical signals using electrical processing only. Current systems handling very high data rates have to split signals into multiple lower data-rate signals and later reconvert them from optical to electrical, a process that adds to costs and reduces network capacity. Â