원래 이름 기록: The Swatch Group Research and Development Ltd

An electronic circuit () including: a chain () of buffers (), wherein each buffer () includes a buffer input (), a buffer output (), a buffer current source () and a buffer capacitor () and wherein a transition time of each buffer () is controllable by the buffer current source (); an oscillator () configured to generate an oscillating reference signal; and a control circuit () coupled to the oscillator () and coupled to the buffer current sources () of the buffers () and operable to adjust the transition time of each buffer () on the basis of the oscillating reference signal.

An electronic circuit () configured to generate a ramped current signal for a receiver circuit (), includes a first current cell () including a first current source (), a trigger input () to activate the first current source () and a trigger output (); a second current cell () including a second current source (′), a trigger input () to activate the second current source (′) and a trigger output (), wherein the trigger output () of the first current cell () is connected to the trigger input () of the second current cell (); and a current supply () connected to an input of the receiver circuit () and selectively connectable with any of the first current source () and the second current source (′).