JPH0486381U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention;
Fig. 2 is a timing chart showing the signals of each part to explain its operation, Fig. 3 is a pattern diagram showing a track pattern when recording a TDM signal, and Fig. 4 is a recording signal of the inclined track of the track pattern of Fig. 3. FIG. 3 is a diagram showing a reproduction screen showing the correspondence between the image data and the scanning lines; 1 to 8...Memory, 10...Frame memory,
27...Record/playback switch, 28...
Recording/playback switching switch, 29... Recording/playback switching switch, 33... Recording/playback switching switch.

Claims (1)

[Claim for Utility Model Registration] Obtained by expanding the time axis of the original video signal approximately N times (N = 2, 3, 4, ......) using the horizontal scanning period as a unit, and dividing it into N channels. By shuffling the recorded video signal every field, N inclined tracks are simultaneously formed on the magnetic tape by N rotating magnetic heads, and M sets (M=2) are formed every field. ,3,4,…………)
The magnetic tape is recorded so that the N inclined tracks are formed, and the reproduced video signal obtained by reproducing the magnetic tape by N rotating magnetic heads is deshuffled and the time axis error is corrected. A video signal recording and reproducing device includes: a common memory for the shuffling, deshuffling, and time axis error correction; and a first switching switch that switches between the recorded video signal and the reproduced video signal, and supplies the recorded video signal and the reproduced video signal to the memory for writing. and a second changeover switch that switches the video signal read from the memory and supplies it to a recording circuit and a reproduction circuit.