42 results about "Optical data disk" patented technology

This invention discloses a protective disc and structure to hold an optical data disc to the protective disc so that if the during use the combination of the data disc and protective disc are mishandled the protective disc does not permit the data to become scratched. Instead the protective disc might become scratched. The data disc is held to the protective disc in a releasable fashion so that it can be removed from the protective disc and attached to another if the first protective disc becomes scratched. The data disc can be held to the protective disc with a set of prongs which are attached to the protective disc and can extend into contact with the edges of the data disc, and / or also into contact with the top surface of the data disc at the outside edges. Another alternative for holding the data disc to the protective disc include a band which extends entirely around the circumference of the discs. These alternative holding devices can be either a continuous ring or two semicircular rings which are held together by hinges and / or by clasps.

The invention relates to the field of optical disk storage and provides an optical disk exchange and data storage separated optical disk jukebox system. The optical disk exchange and data storage separated optical disk jukebox system comprises a rear-end large-capacity optical disk jukebox and a front-end input-output optical disk jukebox which are connected with each other through a network bus. The rear-end large-capacity optical disk jukebox comprises a plurality of optical disk cabinets and rear-end controllers for controlling the optical disk cabinets. The optical disk cabinets are each composed of a plurality of optical disk boxes, and a plurality of optical disks are arranged in each optical disk box. The front-end input-output optical disk jukebox comprises a plurality of parallel CD drivers and front-end controllers for controlling the CD drivers. The optical disks in the CD drivers of the front-end input-output optical disk jukebox are in full-connection mapping relationship with the optical disks in the rear-end large-capacity optical disk jukebox. By means of the optical disk exchange and data storage separated optical disk jukebox system, data in the front-end input-out optical disk jukebox and data in the rear-end large-capacity optical disk jukebox are managed in a united mode, and the phenomenon that manual optical disk inserting and taking-out is low in efficiency and prone to error when data are directly read and written from the rear-end large-capacity optical disk jukebox in a data reading and writing process is avoided. Thus, efficient and intelligent management to a large optical disk jukebox is achieved.

This invention discloses a protective disc and structure to hold an optical data disc to the protective disc so that if the during use the combination of the data disc and protective disc are mishandled the protective disc does not permit the data to become scratched. Instead the protective disc might become scratched. The data disc is held to the protective disc in a releasable fashion so that it can be removed from the protective disc and attached to another if the first protective disc becomes scratched. The data disc can be held to the protective disc by a band which extends entirely around the circumference of a data disc. The band can be comprised of two semicircular rings which are held together by hinges and / or by clasps so that as the semicircular rings are brought together they surround the edges of the protective disc and the data disc and hold the discs together. Alternatively, the band can be made of a continuous ring of heat shrink material. In this instance the band is applied around both the protective disc and the data disc, and then heat is supplied so as to shrink the band around the discs and hold them together.