JPS6349631U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of a rotary head type digital audio playback device according to the present invention.
Figure 2 is a timing chart showing the waveforms of each part in Figure 1, Figure 3 is an explanatory diagram showing the track format and block format of each track of R-DAT, and Figure 4 is the ATF of R-DAT. FIG. 5 is an explanatory diagram showing the track pattern, and FIG. 5 is an explanatory diagram showing the principle of tracking using the ATF track pattern of FIG. 4. 13, 16... Sample hold (S/H) circuit, 15... Timing generation circuit, 19... Sink detection circuit, 20... Timer, 21... Pulse generation circuit.

Claims (1)

[Claims for Utility Model Registration] A recording medium in which each of a plurality of diagonal tracks on which digital signals are recorded is provided with a tracking area on which a pilot signal and a sync signal are recorded is made independent of the digital signal and the recording area. Playback is performed using two rotating heads with different azimuths, and in response to the detection of the sync signal from the signals from each rotating head, the difference in crosstalk between the pilot signals of both adjacent tracks is determined, and the difference signal is used to capture the track. In a rotary head type digital audio reproducing device that performs stun servo control so that the rotary head scans each track, a determination is made to determine that the sync signal is not detected for a certain period of time when the rotary head is reproducing a recording medium. means, and the position of the rotary head relative to each track is adjusted to 1 in response to the determination by the determination means that the sync signal is not detected.
1. A rotary head type digital audio reproducing device, characterized in that a signal for moving the head by a track is generated, and capstan servo control is performed using the signal.