Patent ID: 7649380
Filing Date: 2010-01-19
Classification: H03K

Abstract:
1. A logic circuit, comprising: a first switching device connected between a first voltage and an output terminal through which an output signal is output, the first switching circuit being selectively activated and deactivated based on an input signal; a second switching device connected to a ground voltage, the second switching device being selectively activated and deactivated based on the input signal; a control circuit configured to output a control signal in response to the input signal, the control signal having a first voltage level during a first time period in which a state of the input signal changes from a first state to a second state, and having a second voltage level during a second time period exclusive of the first time period, the second voltage level being lower than the first voltage level; and a field relaxation circuit connected between the output terminal and the second switching device, the field relaxation circuit being selectively activated and deactivated based on the control signal, wherein the control circuit includes