Koninklijke Philips Corporation N.V.

Peter Kempf

Andreas Bening

Harald Bauer

Eckhard Walters

To be able to use a clock generation unit ( ) for different mobile radio systems, the clock generation unit ( ) which includes a phase-locked loop ( ) for converting a reference clock (fR) into a working clock is provided and includes circuit portions ( ) which are designed for different reference clocks (fR) while a respective one of the circuit portions ( ) to which a special reference clock (fR) is assigned can be selected. The clock generation unit ( ) can thus be operated with different reference clocks of different mobile radio systems.

Telecommunication device including a clock generation unit

The invention discloses a mobile radio telephone set including at least one control processor and at least one signal processor which are at least occasionally not in an active mode. To reduce the energy consumption of the mobile radio telephone set in the simplest manner possible, a control unit selects operating modes at least for the control processor and/or the signal processor. By utilizing a separate control unit, more particularly two or more coupled processors or other switching units of the whole mobile radio telephone set may be controlled independently. Each coupled unit may at once individually be set to its own operating mode to operate only the currently necessary units in this manner and reduce the energy consumption in this manner.

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Maarheeze, Netherlands

Peter Kempf