Patent ID: 7496154
Filing Date: 2009-02-24
Classification: H03K

Abstract:
1. A hysteresis receiver receiving an input signal and generating a receiver output, said hysteresis receiver comprising: a first inverter with a first threshold level, said first inverter receiving said input signal and generating a first output, wherein said first inverter switches said first output from one logic level to another if a strength of said input signal crosses said first threshold level; a second inverter with a second threshold level, said second inverter also receiving said input signal and generating a second output, wherein said second inverter switches from one logic level to another if a strength of said input signal crosses said second threshold level; and a logic controller circuit generating said receiver output based on said first output and said second output, wherein said receiver output is generated with a hysteresis window having boundaries determined by said first threshold and said second threshold; wherein said logic controller circuit propagates as said receiver output one of said first output and said second output if said first output logically equals said second output, and a prior value of said receiver output if said first output does not logically equal said second output; and further wherein said logic controller circuit comprises: