. let us design a synchronous sequential circuit with one input line and one output line that recognizes the input string x=1111. The circuit is also required to recognize overlapping sequences, as can be seen in the output string z that results from the following input string x:

　　X = 1101111111010

　　　　　　Z= 0000001111000

-. let us design a synchronous sequential circuit with one input line and one output line that recognizes the input string x=1111. The circuit is also required to recognize overlapping sequences, as can be seen in the output string z that results from the following input string x:

　　　　　　　　　　　　　　　　　 　　X = 1101111111010

　　　　　　Z= 0000001111000