Dynamic information storage or retrieval – Storage medium structure – Special groove
Patent
1991-10-23
1993-12-14
Chin, Tommy P.
Dynamic information storage or retrieval
Storage medium structure
Special groove
3692753, 3692754, 3692781, G11B 370
Patent
active
052709981
ABSTRACT:
A rewritable recording medium and a recording method wherein a train of clock pulses for PLL synchronization, which is to be inserted in a sync pulse interval consisting of at least one horizontal scan period and different from the vertical blanking period of a video format signal, is subjected to biphase modulation with a time code and is recorded, by the superimposition on the video format signal, on the recording medium. According to the second aspect, in a rewritable recording medium having pregrooves, lands serve as record tracks, and odd track numbers and even track numbers are respectively recorded in odd track number areas and even track number areas in each sector of the pregrooves, so that in writing data or reading data from an odd or even track, a corresponding odd or even track number can be obtained.
REFERENCES:
patent: 5023856 (1991-06-01), Raaymakers et al.
Chevalier Robert
Chin Tommy P.
Pioneer Electronic Corporation
LandOfFree
Rewritable recording medium and recording reproducing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rewritable recording medium and recording reproducing apparatus , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rewritable recording medium and recording reproducing apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1711918