STORAGE DEVICE FOR REVERSIBLY STORING DIGITAL DATA ON A MULTITRACK STORAGE MEDIUM, A DECODING DEVICE, AN INFORMATION REPRODUCING APPARATUS FOR USE WITH SUCH STORAGE MEDIUM, AND A UNITARY STORAGE MEDIUM FOR USE WITH SUCH STORAGE DEVICE, DECODING DEVICE AND/OR INFORMATION REPRODUCING DEVICE

摘要

PHN 13.213 : Storage device for reversibly storing digital data on a multitrack storage medium, a decoding device, an information reproducing apparatus for use with such storage medium, and a unitary storage medium for use with such storage device, decoding device and/or information reproducing device. The disclosure describes a storage device and a decoding device for use with a medium which has a plurality of parallel storage tracks. Error protection is provided by a product code of C1 code words and C2 code words. C1 code words areeach assigned to one storage segment in one storage track. C2 code words run recurrently and cyclically through all tracks and also cross intersegment boundaries. Physical spacing of C2 code word symbols is substantially uniform in both coordinate directions. Storage requirements for decoding can be minimized.