For my homework problems i have to make a circuit to detect the code 1110. The questions reads,

"Implement a circuit to detect the code 1110."

I think it means to use a serial code detector, and I think i have to make the output equal "Y" if that helps any. So I was wondering a way to make a circuit like this. Thank you.

 

I think it means to design a logic circuit that outputs a single active signal only when it's four inputs equal to 1110. So design a logic circuit with four inputs and one output that only goes active when that code is on it's inputs. A modified AND circuit is what you are looking for I think.

Lefty

 

if it's a logic design course, maybe it means to know when you receive the string '1' '1' '1' '0' in 4 clocks - so you should use a Finite State Machine.

 

A shft register and a decoder will also do the trick

 

i think its a shift register. thanks for all your help.