Patent ID: 6409616
Filing Date: 2002-06-25
Classification: A63B

Abstract:
A calorie counting racket comprising:a skeleton (10) having a grip (11) and a frame (12); and a counter unit (20) securable inside the grip (11) of the skeleton (10); wherein the counter unit (20) comprising a microprocessor (21); a frequency counter (22) electrically communicating with the microprocessor (21) and inputting quantities of swings of the racket to the microprocessor (21); a force estimating unit (23) electrically communicating with the microprocessor (21) and inputting acceleration of the racket to the microprocessor (21); press buttons (24) electrically communicating with the microprocessor (21) and to refresh data of the microprocessor (21); and a display (25) electrically communicating with the microprocessor (21) to display information from the microprocessor (21).