Patent ID: 7884652
Filing Date: 2011-02-08
Classification: B41J,G03G,H03K

Abstract:
1. A pulse signal generating device that generates a pulse signal on the basis of one switched pulse output signal of a plurality of pulse output signals output from a plurality of encoders, comprising: the plurality of encoders each of which outputs an encoder signal with a pulse period corresponding to the speed of an object to be detected; delay amount control unit that controls a relative delay amount with respect to a pulse signal for each of the plurality of pulse output signals output from the plurality of encoders; a detection unit that individually detects abnormalities in pulses of the plurality of encoder signals; a switching unit that performs switching to one pulse output signal, in which pulse abnormalities are not detected, of the plurality of pulse output signals; and a pulse generating unit that generates a pulse signal by delaying the one pulse output signal switched by the switching unit by the corresponding relative delay amount.