Institution
Nokia
Company•Espoo, Finland•
About: Nokia is a company organization based out in Espoo, Finland. It is known for research contribution in the topics: Signal & Mobile station. The organization has 16625 authors who have published 28347 publications receiving 695725 citations. The organization is also known as: Nokia Oyj & Oy Nokia Ab.
Papers published on a yearly basis
Papers
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07 Aug 2000TL;DR: A portable communications device comprising: a housing 4, a display for entering and displaying data, said display being disposed in said housing and having a touch sensitive screen 6; radio circuitry 12 for receiving and processing communication channel data; and a processor 14 for controlling operation of the device as discussed by the authors.
Abstract: A portable communications device comprising: a housing 4, a display for entering and displaying data, said display being disposed in said housing and having a touch sensitive screen 6; radio circuitry 12 for receiving and processing communication channel data; and a processor 14 for controlling operation of the device. When a voice communication channel is established, the processor 14 is operable to disable at least a portion of the touch sensitive screen 6.
161 citations
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08 Sep 2004TL;DR: In this paper, a system and method for smart, persistent cache management of received content within a terminal is presented, where received content is tagged with cache directive allowing cache control to determine which of cache storage locations to use for storage of content.
Abstract: A system and method for smart, persistent cache management of received content within a terminal. Received content is tagged with cache directive allowing cache control to determine which of cache storage locations to use for storage of content. Cache control detects the number of instances that received content correlates to a newer version of purged content and provides the ability to re-classify cache persistence directive based upon the number of instances.
160 citations
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TL;DR: In this paper, a new multivariate filtering operation called the alpha-trimmed vector median is proposed, which completely preserves stationary regions in image sequences, without motion compensation or motiondetection.
Abstract: Most current algorithms developed for image sequence filtering require motion information in order to obtain good results both in the still and moving parts of an image sequence. In the present paper, filters which completely preserve stationary regions in image sequences are introduced. In moving regions, the 3D filters inherently reduce to spatial filters and perform well in these areas without any motion-compensation or motion-detection. A new multivariate filtering operation called the alpha-trimmed vector median is proposed. Guidelines for the determination of optimal 3D median-related structures for color and gray-level image sequence filtering are given. Algorithms based on vector median, extended vector median, alpha-trimmed vector median, and componentwise median operations are developed. Properties of the human visual system are taken into account in the design of filters. Noise attenuation and detail preservation capability of the filters is examined. In particular, the impulsive noise attenuation capability of the filters is analyzed theoretically. Simulation results based on real image sequences are given. >
160 citations
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05 Jun 2001TL;DR: In this paper, a mobile telephone includes a control device, which comprises a receiver to receive an enabling signal and a controller to enable operation of the mobile telephone in dependence upon the enabling signal.
Abstract: A mobile telephone includes a control device, which comprises a receiver to receive an enabling signal and a controller to enable operation of the mobile telephone in dependence upon the enabling signal. An active badge transmits the enabling signal. If the telephone and the badge are separated and the mobile telephone is no longer able to receive the enabling signal, then the controller disables the mobile telephone.
160 citations
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TL;DR: Empirical channel models and parameters are derived from the wideband measured data at 5.3 GHz in outdoor mobile communications, using the least square method to derive path loss exponents and intercepts and the multipath number distributions follow both Poisson's and Gao's distributions.
Abstract: In this paper, empirical channel models and parameters are derived from the wideband measured data at 5.3 GHz in outdoor mobile communications. The path loss exponents and intercepts are obtained by using the least square method. The mean excess delay and mean root-mean-square (rms) delay spread are within 29-102 ns and 22-88 ns, respectively. The correlation distances and bandwidths are within 1-11 /spl lambda/ and 1.2-11.5 MHz, respectively, when the envelope correlation coefficients equal 0.7 in line-of-sight cases. These correlation values depend strongly on the base station antenna heights. The window length for averaging out the fast fading components is about 1-2 m for microcells and picocells. The multipath number distributions follow both Poisson's and Gao's distributions, but Gao's distribution is better in the high probability region. Large excess delays up to 1.2 /spl mu/s and rms delay spread about 0.42 /spl mu/s are found in the urban rotation measurements, where the receiver is close to a large open square.
160 citations
Authors
Showing all 16635 results
Name | H-index | Papers | Citations |
---|---|---|---|
Federico Capasso | 134 | 1189 | 76957 |
Andreas Richter | 110 | 769 | 48262 |
Shunpei Yamazaki | 109 | 3476 | 66579 |
Jinsong Huang | 105 | 290 | 49042 |
Marc Pollefeys | 98 | 601 | 36463 |
Merouane Debbah | 96 | 652 | 41140 |
Benjamin J. Eggleton | 92 | 1195 | 34486 |
Jérôme Faist | 91 | 970 | 37221 |
Jean-Pierre Hubaux | 90 | 415 | 35837 |
Bernd Girod | 87 | 604 | 32298 |
Howard E. Katz | 87 | 475 | 27991 |
J.J. Garcia-Luna-Aceves | 86 | 602 | 25151 |
Ramesh Raskar | 86 | 670 | 30675 |
Ananth Dodabalapur | 85 | 394 | 27246 |
Stephen A. Spector | 85 | 424 | 41705 |