Patent ID: 6115010
Filing Date: 2000-09-05
Classification: G07C,G08B

Abstract:
An apparatus for displaying operating states of a device, comprising:a circuit having two input terminals receiving two input signals and three output terminals outputting three output signals including a first output signal, a second output signal and a third output signal each having an activated state and a deactivated state derived from the two input signals;said circuit configured such that in each case exactly one of said three output signals is activated;during said activated state of said first output signal, said first output signal having a first effective value exceeding a value of a given first reference potential;during said activated state of said second output signal, said second output signal having a second effective voltage value exceeding a value of a given second reference potential; andduring said activated state of said third output signal, said third output signal having a value being one of:a third effective voltage value exceeding a value of a given third reference potential; andsaid third effective value during a first time period, and a fourth effective value being less than the value of the third reference potential during a second time period, said first time period and said second time period being repeated while said third output signal is in said activated state.