Patent ID: 8848306
Filing Date: 2014-09-30
Classification: G11B

Abstract:
1. A magnetic recording reproducing apparatus, comprising: a disc-shaped magnetic recording medium having thereon information recording areas; a magnetic recording element configured to perform information recording, by applying a magnetic field to the magnetic recording medium to form recording columns extending in a circumferential direction of the magnetic recording medium; a magnetic reproducing element, which performs information reproduction by detecting leaked magnetic field from the magnetic recording medium; a moving mechanism configured to move the relative position of the magnetic recording medium to the magnetic recording element and the magnetic reproducing element, in the circumferential direction and a radial direction of the magnetic recording medium; and a magnetic recording element control unit configured to control the magnetic recording element and the moving mechanism so that, in the information recording area, recording columns adjacent to each other relative to the radial direction are partially overlapped with each other in the radial direction, wherein the magnetic recording element control unit selectively performs a first recording which achieves R where radial positions of the inner and outer circumferential edges of a first recording column are R radial positions of the inner and outer circumferential edges of a third recording column are R a second recording such that each of the recording columns has a non-overlapping portion which is not overlapped with any of the recording column in the radial direction.