JPH0175335U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a block configuration diagram of the magnetic recording/reproducing device according to the present invention, Figs. 2 A to D are diagrams showing timing signals of each part of the block configuration shown in Fig. 1, and Fig. 3 is a diagram showing the timing signals of each part of the block configuration shown in Fig. 1. 4 is a diagram for explaining the recording track pattern. FIG. 4 is a block configuration diagram of a conventional magnetic recording/reproducing device. FIGS. 5A to 5H are diagrams showing timing signals of each part of the block configuration shown in FIG. 4. A and B are diagrams showing the pilot signal _f1 reproduced from the main track and the adjacent track. 1a, 1b...rotating head, 2...capstan,
20, 21, 22, 23... _f1 to _f4 Recording timing signal generation circuit, 24, 25, 26, 27...f
₁ to f ₄ signal generation circuit, 29...recording amplifier (amplification circuit), T...magnetic tape (magnetic recording medium), RF
SWP...Switching signal, _f1 ...Pilot signal, _f4
...Elimination signal.

Claims (1)

[Claims for Utility Model Registration] PCM data obtained by pulse code modulating an information signal to be recorded, and a tracking detection signal that is located before and after the PCM data for a predetermined period and includes at least a pilot signal and an erase signal. A recording signal consisting of a magnetic recording medium is recorded by a rotating head by sequentially forming tracks on the magnetic recording medium, and during reproduction, the rotating head is scanned over the track to reproduce the recorded signal, thereby controlling the running of the magnetic recording medium. A magnetic recording and reproducing device that performs tracking control of a capstan that controls a magnetic recording device, the magnetic recording and reproducing device generating first and second timing signals that generate the pilot signal and the erase signal based on a switching signal that switches the rotating head during recording. and generating the pilot signal and the erase signal based on the first and second timing signals from the first and second timing signal generation circuits. the first and second signal generation circuits; and an amplifier circuit that amplifies at least the pilot signal and the cancellation signal and adjusts its output gain in accordance with the second timing signal; A magnetic recording/reproducing apparatus characterized in that the erasing rate of the pilot signal already recorded on the magnetic recording medium is improved by increasing only the recording current of the erasing signal amplified by the magnetic recording medium.