G - Physics – 11 – B
Patent
G - Physics
11
B
352/11, 352/18.3
G11B 5/52 (2006.01) H04N 5/782 (2006.01) H04N 5/92 (2006.01)
Patent
CA 1209693
- 20 - Abstract of the Disclosure Helical scan magnetic recording system of the type where time compressed audio signals are recorded in extensions of the video tracks. In order to avoid a time delay of the reproduced audio relative to its original relationship to the video when played back, additional audio recording heads are located on the helical scanner so as to record the audio information on tracks that when played back are reproduced sufficiently in advance of the video to allow restoration of the original audio/video synchronism. The arrangement can thus can be employed to produce pre-recorded tapes having time advanced audio such that synchronous audio/video is reproduced on conventional playback reproducing systems.
431594
Gundry Kenneth J.
Todd Craig C.
Dolby Laboratories Licensing Corporation
Fetherstonhaugh & Co.
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