Nokia Mobile Phones Limited

Neste Oy

Valtion Teknillinen Tutkimuskeskus

Kari Hiltunen

Jukka Seppala

Mika Harkonen

Ilpo Kalevi Kauhaniemi

Johan-Fredrik Selin

Antti Ronkko

Eugen Koleda

Minna Malin

Janne Kylma

Jyrki Hakola

A touch sensitive navigational surface functions as a user interface to a communication device such as a cellular telephone. An electromechanical dielectric (EMD) film coextensive with at least a portion of the surface of the cover of the device selectively functions as a sensor, microphone or speaker. The EMD film is placed behind a display to provide a user interface touch sensitive screen capable of sensing the direction of touching. At least a portion of the EMD film functions as a fingerprint recognition system to provide security means for controlling access and limiting call completion to an authorized user.

Touch sensitive navigation surfaces for mobile telecommunication systems

A communication unit has a housing part provided with a component for entering information and a slide assembly. The housing part is provided with a set of tracks along which the slide assembly is moveable relative to the housing part. The slide assembly or the housing part includes a component for moving the slide assembly along the tracks on the housing part. This component could be a wire spring, a motor or a gear-provided spring box that moves the slide assembly. The communication unit also has a component for decreasing the friction on the sliding surfaces in a communication unit having a slide. This component could be linear bearings positioned between the moving parts or internally lubricated materials used on the sliding surfaces.

Slide assembly for a communication unit

Melt-processible poly (ester urethane) and a process for the preparation

Thermoplastic biodegradable polyester a process for the preparation

Growing community of inventors

Helsinki, Finland

Kari Hiltunen