Disc recording/reproducing apparatus and servo signal writing apparatus

A servo signal writing apparatus for writing servo signals to a disc provided in a disc recording and/or reproducing apparatus having a read/write head to write and/or read a signal to and/or from a disc;

• means for holding and moving the read/write head radially relative to the disc;
• and a scale adapted to be movable relative to the disc along with the read/write head provided on the means for holding and moving the read/write head and having recorded thereon position information indicative of a moving position of the read/write head and which is readable by a user from outside the apparatus, the servo signal writing apparatus comprising:
• position information detecting means provided movably in a position corresponding to a moving position of the scale to detect the position information;
• means for controlling the means for holding and moving the read/write head corresponding to the position information detected by the position information detecting means to move the read/write head radially relative to the disc in order to write a servo signal to the disc;
• means for moving the position information detecting means to a position on the disc where the servo signal is to be written;
• and
• means for fixing the read/write head of the disc recording and/or reproducing apparatus while the position information detecting means is being moved.

A servo signal writing apparatus for writing servo signals to a disc provided in a disc recording and/or reproducing apparatus comprising a read/write head to write and/or read a signal to and/or from a disc;

• means for holding and moving the read/write head radially relative to the disc;
• and a scale adapted to be movable radially relative to the disc along with the read/write head provided on the means for holding and moving the read/write head and having recorded thereon position information indicative of a moving position of the read/write head and which is readable from outside the apparatus, the servo signal writing apparatus comprising:
• position information detecting means provided movably in positions corresponding to respective moving positions of the scale to detect the position information;
• means for controlling the means for holding and moving the read/write head corresponding to the position information detected by the position information detecting means to move the read/write head radially relative to the disc in order to write a servo signal to the disc, wherein the position information detecting means being used selectively according to a position on the disc whereat the servo signal is to be written;
• and
• means for fixing the read/write head of the disc recording and/or reproducing apparatus while the position information detecting means is being moved.