Patent attributes
A wave correction clock of the present invention receives a wave signal including time information based on information defined by a pulse width of a rectangular pulse output at a predetermined period, and a period measuring section measures a signal period TRn of the rectangular pulse. A time difference measuring section obtains a time difference between the signal period TRn and an internal reference period TB where the signal period TRn is within a predetermined range, and a time difference determining section corrects generation timing of a reference pulse at the internal reference period TB from an average value of time differences obtained when the rectangular pulse where the signal period TRn is within a predetermined range is detected multiple times.
