Tracking error detection system having at least two magnetic heads with opposite azimuths and circuitry for detecting tracking error by determining a phase difference of output signals from all circuits based on signals produced by the magnetic heads

摘要

Disclosed is a tracking error detection system in a digital magnetic recording/reproducing apparatus for recording/reproducing a digital signal, in which a digital signal recorded by means of a magnetic head having an azimuth is reproduced to thereby produce a reproduction clock signal and the phase or period of the reproduction clock signal is measured to thereby detect a tracking error. Since the tracking error can be known every time the phase or period of the reproduction clock signal is measured, it is possible to detect the tracking error including the linearity of a recording track and it is possible to improve the accuracy in tracking error detection. Further, since no pilot signal or the like is frequency-multiplexed on a low frequency, the recording digital is not affected.