Patent ID: 8767748

Claim:
A signal distribution circuit comprising: a plurality of input lines 1 , 2 , . . . n for a plurality of input signals 1 , 2 , . . . n (n is a natural number greater than 2); a plurality of selectors 2 , 3 , . . . i each having two input lines for accepting two input signals and one output line for outputting a selected one of the two input signals (i is a natural between 3 and n−1), wherein input signal 1 and input signal 2 are input to the two input lines of the selector 2 , one of the input signals is selected under control of a first select signal, and the selected one of the input signals is output from the output line of the selector 2 as a signal selected by the selector 2 ; the signal selected by the selector 2 and input signal 3 are input to the two input lines of the selector 3 , one of the signal selected by the selector 2 and the input signal 3 is selected under control of a second select signal, and the selected one of the signal selected by the selector 2 and the input signal 3 is output from the output line of the selector 3 as a signal selected by the selector 3 ; and signal selected by the selector i−1 and input signal n are input to the two input lines of the selector i, one of the input signals to the selector i is selected under control of a select signal of the selector i, and the selected one of the input signals to the selector i is output from the output line of the selector i.