PITCH METER, METHOD FOR CONTROLLING PITCH METER, WRIST-WATCH TYPE INFORMATION PROCESSING APPARATUS, CONTROL PROGRAM, AND RECORDING MEDIUM

摘要

PPROBLEM TO BE SOLVED: To provide a pitch meter which can measure a pitch even at both running and walking times and which does not need an external operation for switching condition setting between the cases of running and walking. PSOLUTION: A pitch arithmetic unit 560 frequency-analyzes an output of a body motion sensor 90, specifies a signal having the highest power as a reference wave for determining the pitch in a region corresponding to a predetermined frequency range based on the result of the frequency analysis, judges whether the reference wave corresponds to n-th harmonic wave (n: natural number) of the fundamental wave for the body motion or not, and obtains the pitch based on the result of the judgment. PCOPYRIGHT: (C)2004,JPO