Abstract: A system with a transmitter for transmitting digital data via an interface to a receiver. The interface has at least one data line and a clock line. A clock generator supplies a clock signal to the clock line. The receiver uses the clock signal received from the clock line for deriving timing information for processing received digital data. The clock signal may have an amplitude that is lower than the power supply voltage VDD, typically less than half of the power supply voltage, and less stringent requirements can be applied to the waveform of the clock signal than traditionally applied to data and clock signals. The clock signals are hereby less power consuming and cause significantly less electromagnetic interference.

Abstract: The invention relates to an electronic apparatus (1) whose housing (2) is provided with a housing part that is constructed as a lever element (3) and whose hardness exceeds the hardness of crown caps so as to avoid damaging of the edges of a mobile telephone (1). To this end, the battery compartment of the mobile telephone is covered by means of an angled metal plate.