Rotary head type digital signal recording and/or reproducing apparatus for recording and/or reproducing with a variable speed

An apparatus utilizing at least one rotary head for at least one of recording and reproducing a digital signal on and from tracks of a recording medium, comprising:

• means for controlling a feed speed of the recording medium;
• and
• means for controlling a timing of at least one of a recording and reproducing interval between tracks of the recording medium;
• wherein for at least one of recording and reproducing the digital signal on the recording medium at one of a normal recording speed and normal reproducing speed, the feed speed control means controls the feed speed of the recording medium to a normal feed speed and the timing control means controls at least one of the recording interval and reproducing interval to at least one of a normal recording and reproducing interval between tracks, and for at least one of recording and reproducing at 1/2 times the normal speed for at least one of recording and reproducing, the feed speed control means controls the recording medium speed to 1/2 times the normal speed, and the timing control means controls one of the recording and reproducing interval between tracks to 2 times the at least one of the normal recording and reproducing interval when the feed speed for at least one of recording and reproducing is at 1/2 times the normal speed;
• and
• wherein at least two rotary heads are mounted at adjacent positions on a rotating cylinder, one of the at least two rotary heads having a plus azimuth angle and the other of the at least two rotary heads having a minus azimuth angle.

An apparatus utilizing at least one rotary head for at least one of recording and reproducing a digital signal on and from tracks of a recording medium, comprising:

• means for controlling a feed speed of the recording medium;
• and
• means for controlling a timing of at least one of a recording and reproducing interval between tracks of the recording medium;
• wherein for at least one of recording and reproducing the digital signal on the recording medium at one of a normal recording speed and normal reproducing speed, the feed speed control means controls the feed speed of the recording medium to a normal feed speed and the timing control means controls at least one of the recording interval and reproducing interval to at least one of a normal recording and reproducing interval between tracks, and for at least one of recording and reproducing at 2N times the normal speed for at least one of recording and reproducing, the feed speed control means controls the recording medium feed speed to 2N times the normal speed, and the timing control means controls one of the recording and reproducing interval between tracks to 1/2N times the at least one of the normal recording and reproducing interval when the feed speed for at least one of recording and reproducing is at 2N times, N being an integer greater than one;
• and
• wherein at least two rotary heads are mounted on a rotating cylinder at opposite positions of a rotary axis of the cylinder, one of the at least two rotary heads having a plus azimuth angle and the other of the at least two rotary heads having a minus azimuth angle.

An apparatus utilizing at least one rotary head for at least one of recording and reproducing a digital signal on and from tracks of a recording medium, comprising:

• means for controlling a feed speed of the recording medium;
• and
• means for controlling a timing of at least one of a recording and reproducing interval between tracks of the recording medium;
• wherein for at least one of recording and reproducing the digital signal on the recording medium at one of a normal recording speed and normal reproducing speed, the feed speed control means controls the feed speed of the recording medium to a normal feed speed, and the timing control means controls at least one of the recording interval and reproducing interval to at least one of a normal recording and reproducing interval between tracks, and for at least one of recording and reproducing at 2 times the normal speed for at least one of recording and reproducing, the feed speed control means controls the recording medium feed speed to 2 times the normal speed, and the timing control means controls one of the recording and reproducing interval between tracks to 1/2 times the at least one of the normal recording and reproducing interval when the feed speed for at least one of recording and reproducing is at 2 times the normal speed;
• and
• wherein at least two rotary heads are mounted on a rotating cylinder at opposite positions of a rotary axis of the cylinder, one of the at least two rotary heads having a plus azimuth angle and the other of the at least two rotary heads having a minus azimuth angle.