Nokia Mobile Phones Limited

Arto Peuhu

Mika Isotalo

Jouko Haavisto

Marko Erkkil&auml;

A modular system for personal data acquisition and communication, is expanded advantageously a cellular telephone system the functions of which can be increased by means of various expansion cards. A host device in the system according to the invention, such as a mobile communication device, need not be equipped with all possible functions in the manufacturing stage but some of the functions can be realized on expansion cards, and the user can add a desired function to the host device according to need. The expansion cards are small and they are installed substantially inside the host device, such as a mobile communication device, so that the entity formed by the host device and the expansion card seems to the user as a single compact device. Advantageously, the expansion cards include, in addition to the hardware needed, also the software required for controlling the operation of the modules.

Modular mobile communication system

A mobile communication device has a housing,containing battery and electronic component compartments,. Located along a central axis of the housing,is a spring mounted roller,to which is attached a flexible liquid crystal display,. The housing,contains a compartment between the roller,and the outer wall of the housing,for storing the display,in a retracted position. An elongate slot,extends axially along the housing,such that the display,can be pulled through the slot,by a user to a withdrawn position in which the display,is visible to the user.

Mobile communication devices

A mobile communications device is constructed to receive an expansion card which provides to the mobile communications device the capability of generating images. The expansion card contains the basic devices, utilities, and control for the imaging function.

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Tampere, Finland

Arto Peuhu