Patent classifications
G
PHYSICS
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G11
INFORMATION STORAGE
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G11B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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27/00
Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
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G11B27/10
Indexing; Addressing; Timing or synchronising; Measuring tape travel
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G11B27/19
by using information detectable on the record carrier
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G11B27/28
by using information signals recorded by the same method as the main recording
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G11B27/30
on the same track as the main recording
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G11B27/3081
used signal is a video-frame or a video-field (P.I.P)
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