Data recording / reproducing apparatus and method using needle-shaped member
AssigneesYasuo Cho, Pioneer Corporation
InventorsYasuo Cho, Atsushi Onoe
Life of this patent
Estimating the term…
Abstract
The data to be recorded onto a recording medium is directly spread and then recorded onto the recording medium through a needle-shaped member, such as a probe. Upon reproducing the data, the data read from the recording medium is de-spread and reproduced.
Claims22
A recording/reproducing apparatus for recording data onto a recording medium and reading the data recorded on the recording medium, comprising:
- a plurality of needle-shaped members;
- a spreading device for generating spread data by performing direct sequence spectrum spreading processing with respect to the data by individually multiplying respective bits of the data by a plurality of spreading codes which are mutually different;
- a recording device for recording the spread data onto the recording medium through said plurality of needle-shaped members;
- a reading device for reading the spread data recorded by said recording device from the recording medium through said plurality of needle-shaped members;
- and
- a de-spreading device for performing de-spreading processing with respect to the spread data read from the recording medium by using the plurality of spreading codes or a plurality of de-spreading codes respectively corresponding to the plurality of spreading codes.
A recording apparatus for recording data onto a recording medium, comprising:
- a plurality of needle-shaped members;
- a spreading device for generating spread data by performing direct sequence spectrum spreading processing with respect to the data by individually multiplying respective bits of the data by a plurality of spreading codes which are mutually different;
- and
- a recording device for recording the spread data onto the recording medium through said plurality of needle-shaped members.
A reproducing apparatus for reproducing data from a recording medium onto which spread data generated by performing direct sequence spectrum spreading processing with respect to the data by individually multiplying respective bits of the data by a plurality of spreading codes which are mutually different is recorded, said reproducing apparatus comprising:
- a plurality of needle-shaped members;
- a reading device for reading the spread data recorded by said recording device from the recording medium through said plurality of needle-shaped members;
- and
- a de-spreading device for performing de-spreading processing with respect to the spread data read from the recording medium by using the plurality of spreading codes or a plurality of de-spreading codes respectively corresponding to the plurality of spreading codes.
Dependencies are inferred from the claim text.