Patents Represented by Law Firm Renner, Otto, Roisselle & Sklar LLP
  • Disk having read-only and read-write areas
    Patent number: 6163521
    Abstract: A disk of the present invention includes a first storage area for reproducing data and a second storage area for recording and reproducing data, the number of sectors in each track in the first and second storage areas close to each other is larger in the first storage area than in the second storage area, and leading edges of sectors in each track in the first storage area are aligned in at least one line in a radius direction.
    Type: Grant
    Filed: April 13, 1998
    Date of Patent: December 19, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shinichi Konishi, Fumiaki Ueno