Using mechanical switches for a user interface is a ubiquitous practice. However, when these switches are actuated, the contacts often rebound, or bounce, off one another before settling into a stable state. Several methods exist to deal with this temporary ambiguity, using either hardware or software. Here, we look at correcting this problem with a simple digital logic circuit (a common task when interfacing FPGAs or CPLDs with pushbuttons or other switches). Generic VHDL code to implement this methodology is included.-Using mechanical switches for a user interface is a ubiquitous practice.　However, when these switches are actuated, the contacts often rebound, or bounce, off one another before settling into a stable state.　Several methods exist to deal with this temporary ambiguity, using either hardware or software.　Here, we look at correcting this problem with a simple digital logic circuit (a common task when interfacing FPGAs or CPLDs with pushbuttons or other switches).　Generic VHDL code to implement this methodology is included.