Results 1 - 10 of 192

Measuring and Reducing Energy Consumption of Network Interfaces in Hand-Held Devices

by Mark Stemm, Randy H. Katz , 1997
"... Next generation hand-held devices must provide seamless connectivity while obeying stringent power and size constrains. In this paper we examine this issue from the point of view of the Network Interface (NI). We measure the power usage of two PDAs, the Apple Newton Messagepad and Sony Magic Link, a ..."
Abstract - Cited by 357 (0 self) - Add to MetaCart
Next generation hand-held devices must provide seamless connectivity while obeying stringent power and size constrains. In this paper we examine this issue from the point of view of the Network Interface (NI). We measure the power usage of two PDAs, the Apple Newton Messagepad and Sony Magic Link

Reducing Power Consumption of Network Interfaces in Hand-Held Devices (Extended Abstract)

by Mark Stemm, Paul Gauthier, Daishi Harada, Randy H. Katz , 1996
"... An important issue to be addressed for the next generation of wirelessly-connected hand-held devices is battery longevity. In this paper we examine this issue from the point of view of the Network Interface (NI). In particular, we measure the power usage of two PDAs, the Apple Newton Messagepad and ..."
Abstract - Cited by 88 (2 self) - Add to MetaCart
and Sony Magic Link, and four NIs, the Metricom Ricochet Wireless Modem, the AT&T Wavelan operating at 915 MHz and 2.4 GHz, and the IBM Infrared Wireless LAN Adapter. These measurements clearly indicate that the power drained by the network interface constitutes a large fraction of the total power used

Reducing Power Consumption for the Next Generation of PDAs: It's in the Network Interface!

by Paul Gauthier, Daishi Harada, Mark Stemm - In Proceedings of the International Workshop on Mobile Multimedia Communications (MoMuC
"... The current trends in the computer industryseem to indicate that low-cost, light-weight personal digital assistants (PDAs) will emerge as a major player in the information access and mobile computing markets. An important issue which must be addressed for PDAs, however, is battery longevity. In this ..."
Abstract - Cited by 27 (0 self) - Add to MetaCart
information. In particular, we measured the power usage of two PDAs, the Apple Newton Messagepad and Sony Magic Link, and three NIs, the Metricom Ricochet Wireless Modem, and the AT&T Wavelan operating at 915 MHz and 2.4 GHz. These measurements clearly indicate that the power drained by the network

Using gps for measuring household travel in private vehicles

by David P. Wagner, Battelle Elaine Murakami, Federal Highway Administration, Marc Guindon, Lfucg Division Of Planning - in 6th TRB Conference on the Application of Transportation Planning Methods , 1997
"... Personal travel and how it changes is of continuing concern to transportation planners and policy makers. Information about daily travel patterns are generally captured using self-reported informa-tion using a written diary and telephone retrieval. This project developed a small, user-friendly, mail ..."
Abstract - Cited by 1 (0 self) - Add to MetaCart
-friendly, mailable unit including a Global Positioning System (GPS) receiver to capture vehicle-based, daily travel information. The unit is a Sony MagicLink ® 2000, a Personal Digital Assistant (PDA) with a backlit screen, weighing about 1.5 lbs. A Garmin ® GPS antenna/receiver is attached through the PDA serial

Security On the Move: Indirect Authentication Using Kerberos

by unknown authors
"... Even as mobile computing and network computing are gaining momentum, Internet security is sharing the spotlight. Security and authentication on open networks is already a difficult problem, even without the additional risks posed by wireless media and the additional software constraints imposed by m ..."
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consists of a portable proxy module that runs as untrusted, unprivileged code, and an extremely lightweight client module that runs quite efficiently even on our Sony MagicLink PDA. This partitioning of functionality makes Charon attractive for ISP’s and network computing as well as existing mobile devices

Measuring and Reducing Energy Consumption of Network Interfaces in Hand-Held Devices

by Mark Stemm And, Fred Douglis, D. P. Hembold, D. E. Long, B Sherrod A, Kester Li, Roger Kumpf, Paul Horton, Stanley Zdonik, Michael Franklin , 1997
"... Next generation hand-held devices must provide seamless connectivity while obeying stringent power and size constrains. In this paper we examine this issue from the point of view of the Network Interface (NI). We measure the power usage of two PDAs, the Apple Newton Messagepad and Sony Magic Link, a ..."
Abstract - Add to MetaCart
Next generation hand-held devices must provide seamless connectivity while obeying stringent power and size constrains. In this paper we examine this issue from the point of view of the Network Interface (NI). We measure the power usage of two PDAs, the Apple Newton Messagepad and Sony Magic Link

Digestor: Device-independent Access to the World Wide Web

by Timothy Bickmore, Bill N. Schilit - Proc. WWW-6 , 1997
"... Digestor is a software system which automatically re-authors arbitrary documents from the World-Wide Web to display appropriately on small screen devices such as PDAs and cellular phones, providing device-independent access to the Web. Digestor is implemented as an HTTP proxy which dynamically re-au ..."
Abstract - Cited by 124 (2 self) - Add to MetaCart
,10,17,18], and is now becoming a commercial reality. General Magic's Presto!Links for Sony's MagicLink, AllPen's NetHopper for the Newton and Sharp's MI-10 (Figure 1, shown at right), all provide WWW browsers for PDA class devices, while the Nokia 9000 Communicator and Samsung's Duett provide

Juggling Mathematics and Magic

by Ron Graham
"... The mystery of magic and the artistry of juggling have surprising links to interesting ideas in mathematics. In this note, I will illustrate several of these connections. ..."
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The mystery of magic and the artistry of juggling have surprising links to interesting ideas in mathematics. In this note, I will illustrate several of these connections.

Magic Moments in situated mediascapes

by Josephine Reid Richard, Richard Hull - Proc. ACM SIGCHI International Conference on Advances in Computer Entertainment Technology ACE 2005 , 2005
"... In this paper, we describe the situation and factors that lead to "Magic Moments" in mediascape experiences and discuss the implications for how to design these magic moments without them appearing contrived. The distinctive feature of mediascapes is their link to the physical environment ..."
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In this paper, we describe the situation and factors that lead to "Magic Moments" in mediascape experiences and discuss the implications for how to design these magic moments without them appearing contrived. The distinctive feature of mediascapes is their link to the physical environment

Magic angle chaotic precession

by Bernd Binder - Topics on Chaotic Systems, Selected Papers from CHAOS 2008 International Conference , 2008
"... Abstract: This paper explores the properties of a precessing rotor or a coupled system of precessing rotors (gyroscopes), where a special chaotic behavior in the precession angle can be found if the change of rotor angular velocity is linearly coupled by (an)holonomy to the precession angular veloci ..."
Abstract - Cited by 3 (3 self) - Add to MetaCart
velocity and angle. The linear coupling provides for rolling cone paths and allows spinning up and controlling the rotor simply by forcing precession at special quantum magic precession angles. The geometric phase induced by the curved path of the rotor or external curvature and part of the coupling
Results 1 - 10 of 192