Resources Contact Us Home
Magnetooptical disk unit capable of recording or reproducing signals having different domain lengths under the same conditions, signal recording method and signal reproducing method

Image Number 10 for United States Patent #6295253.

When recording a recorded signal consisting of "01011001110" in a magnetooptical recording medium, (1,1) corresponding to a domain of 2T is converted to (1,0,1), and (0,0) is converted to (0,1,0) in the recorded signal. In other words, the first "1" of (1,1) is converted to unit bits "1,0" and the first "0" of (0,0) is converted to unit bits "0,1". Similarly, the first "1" of (1,1,1) corresponding to a domain of 3T is converted to unit bits "1,0", and the second "1" is converted to unit bits "1,0". "1" or "0" of the final unit bit is not converted but recorded as such. Consequently, a signal can be correctly reproduced by extension ally transferring domains having different domain lengths from a recording layer to a reproducing layer under the same reproducing conditions.

  Recently Added Patents
Display sheet, display device, and electronic apparatus
Portable computer display structures
Note tab
Cooling structure and cooling method for control rod drive mechanism and nuclear reactor
Switching device, switch control method, and storage system
Direct mode adapter based shortcut for FCoE data transfer
Cathode material for lithium ion secondary battery and lithium ion secondary battery using it
  Randomly Featured Patents
Switch-off device for electrically operated clock alarm and control therefor
Drum handle
Compact disc holder
Self-loading hay bale transport trailers
Optical fiber amplification method and apparatus for controlling gain
Golfer's positioning and retrieving device
Medical irrigation device
Method of mounting a ceramic valve guide assembly
Process and furnace for burning refuse
Magnetic recording and reproducing apparatus and magnetic recording medium