Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Data recording/reproducing method and apparatus having means for reliable detection of unrecorded sectors










Image Number 4 for United States Patent #5359584.

In recording data on a disk-shaped information recording medium having formed thereon a plurality of concentric or spiral tracks each being divided into a plurality of sectors each having an ID field and a data field, a data mark is selected from a plurality of distinct data marks according to an address of a target sector such that the selected data mark is different from a data mark recorded in an adjacent sector which is contained in an adjacent track. The selected data mark is recorded at the start position of the data field of the target sector. In reproducing the recorded data, a data mark is selected from the plurality of distinct data marks according to an address of a target sector, and is compared with a data mark reproduced from the target sector to detect whether the reproduced data mark coincides with the selected data mark. Sector data in the target sector is reproduced only when the reproduced data mark coincides with the selected data mark.








 
 
  Recently Added Patents
Solar cell with hyperpolarizable absorber
Expandable mobile device
Selecting modulation and coding scheme in the presence of interference
System and method for ranking content and applications through human assistance
Systems and methods for providing a collaboration place interface including data that is persistent after a client is longer in the collaboration place among a plurality of clients
Dye-sensitized solar cell, dye-sensitized solar cell module, and coating liquid for forming electrolyte layer
Apparatus for restoring setting information of a board management controller from a backup memory before loading an OS when a system board is replaced
  Randomly Featured Patents
Aromatic polycarbonates having polyfunctional UV screening units, method for making and use
Microscope
Method for determining the resemining the resemblance of documents
Production of silicon carbide with automatic separation of a high grade fraction
Skid rail insulation member and method of installing same
Compositions and methods for the identification, assessment, prevention, and therapy of human cancers
Arrangement in a loop fitting or locking tongue for retractor-type safety belts
Model airplane
Multi-step oval rosette/oval door knob
Method for producing foamed polymer molded bodies and said foamed polymer molder bodies