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
Pre-filling order forms for transactions over a communications network
Feedwater temperature control methods and systems
Method for manufacturing an electronic module and an electronic module
Method of controlling a fan
Method and system for creating semantic relationships using hyperlinks
Image processing apparatus, method for displaying interface screen, and computer-readable storage medium for computer program
High-volume distributed script error handling
  Randomly Featured Patents
Laminated sheet
Shoe-like toy
Printed circuit board layout to minimize the clock delay caused by mismatch in length of metal lines and enhance the thermal performance of microeletronics packages via condution through the p
Precious stone
Lighted mirror
Gain-clamped semiconductor optical amplifier
Methods and system for recuperated circumferential cooling of integral turbine nozzle and shroud assemblies
System for automatic feedback-controlled administration of drugs
Seatbelt system
Method and apparatus for detecting malfunctions in communication systems