Nokia

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.

Interlocking cover for mobile terminals

Abstract: An assembly for a mobile terminal, or a portable electronic device such as a cellular telephone or a personal digital assistant, is provided that includes a chassis with a locking perimeter and at least one covering, such as a front and/or a rear cover, with a locking edge. A cover may include a void or window for viewing a display of the electronic device and a keymat to control the electronic device. The chassis may include a convex groove in which a bracelet or wrap may be included.

Apparatus and method for proximity based input

Abstract: In accordance with an example embodiment of the present invention, a method is provided for transferring information items between communications devices. A source device detects a selection input by an input object. Direction of movement of the input object is detected after the selection input. A target device is identified on the basis of the direction of movement of the input object. The target device is connected for transferring an information item associated with the selection input.

Shared application access for data services in wireless telecommunication systems

Abstract: A method and system for providing multi-user shared access to service applications operating in wireless data services such as Wireless Application Protocol (WAP) is described. An exemplary embodiment of the present invention comprises a solution that provides a modified communication pathway that permits mobile clients to join an active session engaged by other clients. The system comprises a gateway 200 and a coordinating browser 206 (co-browser) which cooperates with the gateway subsystem 202 and the WAP subsystem 204 to coordinate and establish shared sessions between users. When a first client 220 is engaged in an active session, the co-browser 206 determines that a second client 230 wishes to join the session by analyzing the request containing the universal resource identifier (URI) transmitted by the second client. The co-browser enables all peer clients to interact, share, and view updated content within the application.

A closer look at recognition-based graphical passwords on mobile devices

Abstract: Graphical password systems based on the recognition of photographs are candidates to alleviate current over-reliance on alphanumeric passwords and PINs. However, despite being based on a simple concept -- and user evaluations consistently reporting impressive memory retention -- only one commercial example exists and overall take-up is low. Barriers to uptake include a perceived vulnerability to observation attacks; issues regarding deployability; and the impact of innocuous design decisions on security not being formalized. Our contribution is to dissect each of these issues in the context of mobile devices -- a particularly suitable application domain due to their increasing significance, and high potential to attract unauthorized access. This produces: 1) A novel yet simple solution to the intersection attack that permits greater variability in login challenges; 2) Detailed analysis of the shoulder surfing threat that considers both simulated and human testing; 3) A first look at image processing techniques to contribute towards automated photograph filtering. We operationalize our observations and gather data in a field context where decentralized mechanisms of varying entropy were installed on the personal devices of participants. Across two working weeks success rates collected from users of a high entropy version were similar to those of a low entropy version at 77%, and login durations decreased significantly across the study.

Method for encoding and decoding video information, a motion compensated video encoder and a corresponding decoder

Abstract: A motion compensated video coding method which can be applied especially in transfer of video streams using low transmission bit rate is presented. In the motion compensated coding method, the motion of picture elements between a piece of reference video information and a piece of current video information is estimated and then modeled using certain basis function and coefficients. The coefficients are quantized, and the quantizer is selected according to a certain selection criterion, for example, based on a target image quality or on a target transmission bit rate. Preferably the selection criterion is such that it automatically adjust the accuracy with which the motion of picture elements is represented to be related to the accuracy with which the prediction error information is represented. A decoding method, an encoder and a corresponding decoder are also described.