Magnetic recording and or reproducing system
Abstract
Abstract IMPROVED UTILIZATION TAPE IS OBTAINED IN RECORDING VIDEO SIGNALS BY RECORDING THE SLANT TRACKS CLOSER TOGETHER OR EVEN OVERLAPPING. THE POSSIBILITY OF INTERFERENCE BETWEEN THE ADJACENT TRACKS IS REDUCED BY GATING THE SIGNALS RECORDED ON ADJACENT TRACKS SO AS TO RECORD ONLY ALTERNATE INTERVALS OF AT LEAST SELECTED PORTIONS ON EACH TRACK. THE INTERVALS ARE CHOSEN SO THAT THE AREAS ON ONE TRACK ON WHICH SUCH SELECTED PORTIONS ARE RECORDED ARE ADJACENT AREAS ON THE NEXT ADJACENT TRACK ON WHICH THE SELECTED PORTIONS ARE NOT RECORDED. IN PLAYBACK THE RECORDED SELECTED PORTIONS ARE COMBINED WITH REPLICAS THEREOF DELAYED ON ODD MULTIPLE OF EACH RECORDING INTERVAL, THEREBY RECONSTITUTING A CONTINUOUS VIDEO SIGNAL. PREFERABLY, ALTERNATE LINE INTERVALS ARE RECORDED, AND THE DELAY IN PLAYBACK IS THUS AND ODD MULTIPLE OF A LINE INTERVAL. THE SELECTED PORTIONS GATED FOR ALTERNATE INTERVALS MAY BE THE CHROMINANCE SIGNALS OR EVEN THE ENTIRE VIDEO SIGNAL.
Inventors
- 👤 N Kihara
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |