Patent ID: 6473366
Filing Date: 2002-10-29
Classification: G04C,G04R

Abstract:
A method for timing a clock, comprising the steps of:preparing a reference mark on a second hand wheel; preparing a reference mark on a minute hand wheel; preparing a plurality of reference marks on an hour hand wheel; using a photoelectric element to detect said reference marks; stopping said second hand wheel shortly after the reference mark on said second hand wheel is detected; revolving said minute hand wheel and said hour hand wheel; detecting reference marks on said hour hand wheel and said minute hand wheel; and stopping said minute hand wheel and said hour hand wheel after one of said plurality of reference marks on said hour hand wheel is first detected and then the reference mark on said minute hand wheel is detected; wherein each of said reference marks on said second hand wheel, said minute hand wheel and said hour hand wheel blocks said photoelectric element a unique period of time, and said method determines which reference mark is detected by means of said unique period of time.