G11B2220/2558 - CPC Classification Index

ClassID:

199302 ⎘

G11B2220/2558 - CPC Classification

Classification description:

Record carriers by type; Disc-shaped record carriers characterised in that the disc is based on a specific recording technology; Optical discs; CDs CD-XA format, i.e. eXtended architecture extension of the CD-ROM standard

Recent Application in this class:

20060212614

2006-09-21

CD PLAYBACK AUGMENTATION FOR HIGHER RESOLUTION AND MULTI-CHANNEL SOUND