Remote Car Unlock What Happens Between The Time You Press Your Car Remote's "unlock" Button And The Beep Signalling Its Unlocked?

What happens between the time you press your car remote's "unlock" button and the beep signalling its unlocked? - remote car unlock

Press the button and sends a radio signal traveling at the speed of light. An antenna in the car receives the signal that triggers a circuit. This allows an automatic control circuit, a drive that is connected to the lock on the door.