the internal combustion engine is below a maximum speed and above a minimum speed and b the rotational direction corresponds to the forward rotational direction of the crank shaft application_number US 54681306 A description fig1 shows a schematic illustration of a signal generating disk 1 having two sensors assigned to the signal generating disk the signal generating disk 1 is for example situated directly on a crankshaft or camshaft or is indirectly connected to the camshaft with respect to the rotation using gear elements the signal generating disk rotates about an axis 2 markings 3 are situated at the circumference of signal generating disk 1 the markings are made up for example of teeth 4 which are each positioned equidistantly over the circumference of the signal generating disk in each instance tooth spaces 8 are situated between teeth 4 a further mark 5 e g in the form of a tooth 4 twice as wide as shown here or in the form of a greater tooth distance between two teeth 4 or the like designates an identified neutral position of the crankshaft zero marking the teeth each run across an angle of approximately 3 u00b0 the tooth spaces run across an angle of 3 u00b0 therefore a tooth 4 and adjacent tooth space 8 run across an angle of approximately 6 u00b0 a first sensor 6 and a second sensor 7 are positioned at signal generating disk 1 sensors 6 7 are distributed in the different angular ranges over signal generating disk 1 the two sensors 6 7 may be situated in a common housing.