Servo signal recording device and servo signal verifying device using edge detection

A servo signal verifying device for verifying a servo signal recorded onto a longitudinal magnetic tape, comprising:

• reproducing means for reproducing said servo signal;
• detecting means for detecting an edge of said magnetic tape at a time when said reproducing means reproduces said servo signal;
• and
• calculating means for calculating a result of verification of said servo signal recorded onto said magnetic tape, using a reproduction result of said servo signal by said reproducing means and a detection result of said edge of said magnetic tape by said detecting means.

A recording device, comprising:

• recording head that records a servo signal onto a magnetic tape, said recording head recording all the servo signals that are recorded onto said magnetic tape;
• and
• a control circuit that detects an edge of said magnetic tape at a location in the lengthwise direction where each of said servo signals is recorded and that adjusts a position that said recording head records each of said servo signals onto said magnetic tape at the location before the recording, in accordance with said detected edge,
• wherein the control circuit is arranged near the recording head and on an up-stream side along the lengthwise direction in which the magnetic tape is transported.