Apparatus for recording information in and/or reproducing information from a ferroelectric recording medium
AssigneePioneer Corporation
InventorsAtsushi Onoe, Yasuo Cho
Life of this patent
Estimating the term…
Abstract
A dielectric recording medium in a disc form is provided with: a center hole; an inner area; a recording area; and an outer area, arranged concentrically from the inside in this order. The inner area, the recording area, and the outer area contain a uniform and flat dielectric material and are polarized with the polarization direction of the recording area opposite to that of the inner area and the outer area in their initial condition. The recording area in which data is recorded has tracks and spaces, each of which is between two of the tracks, and is provided with areas in which control information about the recording/reproducing is recorded, in the track and the space.
Claims1
A dielectric recording medium comprising:
- a substrate;
- an electrode disposed on the substrate;
- and
- a dielectric material disposed on the electrode, wherein
- the dielectric recording medium is disk-shaped,
- the dielectric material is divided into an inner area, an outer area and a data area,
- the inner area and the outer area have respective predetermined widths,
- the data area is located between the inner area and the outer area, and
- polarization directions of each of the inner area and the outer area are set in the opposite direction to a polarization direction of the data area.
Dependencies are inferred from the claim text.