The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 24, 2009
Filed:
Mar. 06, 2006
Yuzuru Yamakage, Kawasaki, JP;
Akiyoshi Uchida, Kawasaki, JP;
Yuzuru Yamakage, Kawasaki, JP;
Akiyoshi Uchida, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A recording and reproducing apparatus has a recording control section for multiplex-recording data in one of recording unit regions of a holographic recording medium; a reproducing control section for selectively reproducing the data multiplex-recorded in the recording unit region; a measuring section for causing specific data to be recorded in a recording unit region A to measure a maximum multiplex-recordable number N of the region A; a multiplicity setting section for setting (i) a multiplex-recording number M (M<N) of data to be recorded in the region A and (ii) a multiplex-recording number (N−M) of a buffer region of the region A, by using the maximum multiplex-recordable number N; and a storage section for storing the number N and the number M. When data B is to be recorded in the region A beyond multiplex-recording number M, the recording control section multiplex-records page data B in the buffer region of the region A within the range of the maximum multiplex-recordable number N.