This paper proposes a fast stable playback method at the random access mode via home network. This method switches the data to be read from the AV stream based on the network bandwidth adaptively, perform a buffering control of the display device side. As a result, it realizes high quality image display with no variation in the image display interval.
I review the development status of data hologram positioning technologies for the hologram data storage system, which is expected as the next generation super high density/speed optical disc. Then I report a new positioning technology to locate the data hologram in the axial direction I have been studying and developing. As well its principle, its features, experimental results, and how it could be adopted to the colinear hologram system, are described.