ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
G11B0020160000 using non self-clocking codes, i.e. the clock signals being either recorded in a separate clocking track or in a combination of several information tracks 1
G11B0020180000 Error detection or correction; Testing 1
G11B0020200000 for correction of skew for multitrack recording 1
G11B0020220000 for reducing distortions 1
G11B0020240000 for reducing noise 1
G11B0021000000 Head arrangements not specific to the method of recording or reproducing 1
G11B0021020000 Driving or moving of heads 1
G11B0021030000 for correcting time base error 1
G11B0021040000 Automatic feed mechanism producing a transducing traverse of the head in a direction which cuts across the direction of travel of the recording medium, e.g. helical scan 1
G11B0021060000 the record carrier having means to ensure traverse movement of the head 1
G11B0021080000 Track changing or selecting (G11B0021120000 takes precedence);; 1
G11B0021100000 Track finding or aligning by moving the head 1
G11B0021120000 Raising and lowering; Back-spacing or forward-spacing along track; Returning to starting position 1
G11B0021140000 manually 1
G11B0021160000 Supporting the heads; Supporting the sockets for plug-in heads 1