Information recording method using optical disks

Abstract

Abstract PURPOSE:To attain reproduction with good efficiency by setting an address change recording area adjacent to an address area to discriminate the presence of revision depending on the presence of address change at the address change recording area at reproduction. CONSTITUTION:When an address and information are inputted to a central operating processing section 6 at recording, a file storage control section 7 compares a final address stored in a storage section 8 with the inputted address and discriminates the adress whether it is an address of new information or an address of the information recorded already. When a desired address is inputted to the central operating processing section 6 at reproduction, the file storage control section 7 compares its address with the fianl address, and after the address is confirmed to be an address of the information recorded already, a head is moved to an address area 2, the presence of a new address is confirmed at a succeeding address change recording area 5, and when there exists no new address, the information recorded to an information area 3 corresponding to the designated address is read. When the new address is recorded, the head is moved to a position of the new address and reads revised information from the corresponding information recording area 3.

Inventors

• 👤 Kazuo Isaka
• 👤 井坂　和夫
• 👤 Kyo Tanaka
• 👤 田中　協

Bibliographic Details