Counting cash by weighing

摘要

A method of counting cash comprising repeatedly weighing a variable-weight group of cash items as the weight of the group varies with addition or removal of cash items; after each weighing, determining the number of items in the group; comparing the number of items determined following the second of successive weighings and the number of items determined following the first of successive weighings; as a result of the comparison, determining whether items have been added or removed; choosing a respective counting method in accordance with whether items have been added or removed; and counting in accordance with the method chosen.