It's been 20 years since I have used any digital logic circuits, so please explain things well and be patient. I just need a simple digital circuit that does the following: When the input state changes (Low to high or high to low) the output goes to high. Then there needs to be a momentary switch to reset the output back to low. It's as simple as that. I have searched Google, but I think I that I just don't know the correct terms to be using or maybe the answer is staring me in the face and I just don't know it. Any suggestions are examples would be appreciated.