Patent ID: 7619405

Claim:
A process for determining a time interval between a start impulse ( 34 ) and a position impulse of a position sensor ( 1 ) according to a travel time principle wherein said start impulse is generated by the position sensor and the position impulse is generated by a position magnet as response to the start impulse depending on the position of the position magnet, said process comprising: emitting of said start impulse: receiving an analog position impulse as a response to the start impulse in dependency of the position of the position magnet; generating at least one digital position impulse ( 69 ) with defined time width from the analog position impulse ( 74 ) such that a middle ( 69 ′) of the position impulse of the digital position impulse ( 69 ) is located at a middle ( 68 ) of the position impulse of the analog position impulse ( 74 ); and determining said time interval ( 67 ) as time difference between the starting impulse ( 34 ) and the position impulse middle value ( 69 ′) of the digital position impulse ( 69 ).