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SMCJ36A V6G

发帖时间:2021-06-15 03:16:42

Maxim reported revenues of $436.1 million for its fiscal quarter ending December 25, 2004, a 29.0% increase over the $338.1 million reported for the same quarter of calendar 2003. But with the slowdown in orders, accounts receivable decreased $20.8 million to $179.7 million, and inventories increased $10.8 million to $146.6 million in the quarter just ended. #

It is apparent that liquid crystal displays will be the dominant flat-panel technology for some years to come,” said Merck chairman Bernhard Scheuble, in a statement. We see this acquisition as an opportunity to explore alternative technologies for the future, which is a prudent step for any market leader.”

Covion had sales of approximately 8 million euro (about $10 million) in 2004. It was formed in 1999 by Avecia and Aventis Research & Technologies and was fully acquired by Avecia in 2002. Covion's manufacturing and R&D operations are located in the Hoechst Industrial Park in Frankfurt.

SMCJ36A V6G

OLEDs are semiconducting organic polymers suitable for use as in light sources and displays. They are made by placing a series of organic thin films between two conductors. When electric current is applied, they emit light. Polymer electronics will increasingly be used in applications such as solar cells, organic thin-film transistors, radio-frequency identification tags, and other products, Merck said.

Merck acquired the OLED research and development project of Schott AG (Mainz, Germany) in Dec. 2004. Merck also has its own polymer electronics research and development laboratory in Chilworth, England.

MANHASSET, N.Y. — The squabble among Wi-Fi vendors about the true meaning of Multiple Input/Multiple Output (MIMO) technology heated up Tuesday (Feb. 8) with a claim by Datacomm Research that some vendors are misusing the term.

SMCJ36A V6G

MIMO uses multiple radios and antennas to send and receive data within a single frequency channel, which significantly increases WLAN speed and range. Several WLAN equipment vendors, including Belkin and Linksys, already have MIMO equipment on the market. Datacomm claimed both those products, which are based on technology from Airgo Networks, represent true MIMO.

Other vendors, including D-Link and Netgear, have announced they will release such equipment soon. Netgear's underlying technology will be from Video54 and D-Link's will come from Atheros Communications. Those vendors claimed at the recent Consumer Electronics Show that theirs is a better implementation of MIMO than Airgo's.

SMCJ36A V6G

MIMO will be part of the 802.11n standard, which will replace the current 802.11g standard. However, ratification of 802.11n isn't expected for as long as two years and, as yet, there is no official MIMO standard.

Datacomm said that some vendors claim their products are MIMO simply because they use smart antennas or multiple channels, the research company claimed in a statement. However, while such technology might be a valid enhancement to existing Wi-Fi products, it isn't MIMO, the research company said.

Both speakers expressed confidence that OFDM, with its ability break a spectrum into a large number of independent channels and dynamically select a modulation scheme for each channel, would provide a solution.

They added that little could be done about the problems that Wi-Fi would face in trying to become a home media network. Latchman said Wi-Fi, while providing more mobility than power line communications, suffered from irregular bit rates, drop outs and virtually no chance of connection when more than 70 feet from a hot spot. Further, he said it could only offer under 2 Mbits/s of useable data rate in about 90 percent of the average house.

Many European homes and apartments are built with concrete walls that block Wi-Fi frequencies, making multiroom networks all but impossible.

Latchman argued that power line communications would overcome all these problems, providing 14 Mbits/s of raw throughput for about a 5-Mbits/s data rate in the majority of homes. HomePlug AV, he claimed, provides 150 Mbits/s of raw data rate and promised a 80-Mbits/s useful data rate.

Latchman said power line communications also offered a new capability in developing countries. It could be deployed in regions that only have power wiring, but no telephone or cable infrastructure, bringing Internet connectivity, media content and voice-over-IP phone services with no additional wiring.

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