Nokia Mobile Phones Limited

Mika Isotalo

Jouko Haavisto

Arto Peuhu

Marko Erkkil&auml;

Timo T Laitinen

Petri Kotilainen

Seppo Vesam&auml;ki

Steven Barrett

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

An electronic device ( ), comprising at least one circuit board ( ); an interference screen ( ) to be connected to said circuit board; and a power supply ( ) comprising a first terminal ( ) and a second terminal ( ). The device is characterized in that said screen ( ) comprises means ( ) for fixing the power supply ( ) to the screen ( ) in such a way that an electrical connection is established between the screen ( ) and the first terminal ( ) of the power supply ( ). The arrangement of the device facilitates the reliable fixing of a power supply and saves space on a circuit board in a way suited for mass production.

Electronic device

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An elongate slot,extends axially along the housing,such that the display,can be pulled through the slot,by a user to a withdrawn position in which the display,is visible to the user.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.

A radiotelephone proximity detector including a first proximity unit having a receiver and a second proximity unit having a transmitter, wherein the units can be coupled together and the coupling can be detected. One of the units is associated with a radiotelephone and the other with a user. When the units are coupled, they are responsive to the detection of their uncoupling, whereupon the transmitter of the second proximity unit transmits a proximity signal to the receiver of the first unit. The first proximity unit estimates the proximity of the radiotelephone and the user on the basis of the received proximity signal. Thus the two units operate together such that, when coupled, at least one of the units enters a standby mode, and when uncoupled, at least one of the units sends a proximity signal to the other unit.

Growing community of inventors

Tampere, Finland

Mika Isotalo