Optical information recording and reproducing apparatus, optical information recording and reproducing method, and data library apparatus
一种再现装置、记录数据的技术，应用在光学记录/再现/擦除方法、数字记录/再现、使用光学干涉图样进行记录/再现/擦除等方向，能够解决记录容量大、浪费等问题，达到高效记录的效果
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Embodiment 1
[0052] In the optical information recording and reproducing device according to the first embodiment of the present invention, the signal light and the reference light are superimposed and incident on the optical information recording medium to form an interference fringe pattern and record information. At this time, angle multiplexing recording can be performed by changing the incident angle of the reference light incident on the optical information recording medium.
[0053] Hereinafter, the hologram corresponding to each reference light angle in the hologram recorded by changing the reference light angle in the same area is called a page, and the set of angle-multiplexed pages in the same area is called a book (book) .
[0054] In addition, when recording information at a desired position in an optical information recording medium, a pre-processing called pre-cure is required to irradiate a predetermined light beam before irradiating the desired position with reference ligh...
Embodiment 2
[0177] Figure 9 It is a block diagram showing the structure of the optical information recording and reproducing apparatus of the second embodiment. for with figure 1 The description of the common part is omitted.
[0178] The optical information recording and reproducing apparatus 900 is connected to the host 108 and records data input from the host 108 on the optical information recording medium 101 . In addition, the data reproduced from the optical information recording medium 101 is output to the host computer 108 . Since the pickups 902 and 903 can move in the radial direction, it is possible to record and reproduce information on the entire surface of the optical information recording medium 101 using holography.
[0179] In order to record information, it is necessary to irradiate signal light and reference light to the optical information recording medium 101 , the pickup 902 irradiates the signal light to the optical information recording medium 101 , and the ref...
Embodiment 3
[0206] Figure 11 is a sequence diagram showing the operations of the data recording process and the verifying process of the optical information recording and reproducing apparatus according to the third embodiment. The structure of the optical information recording and reproducing device is the same as that of Embodiment 2, so the description is omitted, but the memory of the optical information recording and reproducing device of the third embodiment has at least these three storage surfaces of Buffer1, Buffer2, and Buffer3, and the respective sizes are fixed capacity shares. .
[0207] First, precure of cure1 is performed, and the data of Buffer1 is sequentially recorded from book1 of cure1 to book100.
[0208] Next, pre-cure of cure2 is performed, and the data in Buffer2 after being updated to the data for cure2 are sequentially recorded from book1 of cure2 to book100, and the post-cure of cure1 and the verification after post-cure are performed in parallel with the reco...
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