US3215772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic recording of signals containing synchronizing information
Assignee: Sony Corp
•
Filing: 1961-10-02
•
Granted: 1965-11-02
•
Expires: 1981-10-02
Abstract
No abstract record available.
Inventors
- 👤 Kihara Nobutoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:08
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/78; H04N5/782; H04N5/783; H04N5/7824; H04N5/7826; H04N5/78263
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A MAGNETIC RECORDING SYSTEM COMPRISING A MAGNETIC MEDIUM, AND A MAGNETIC RECORDING HEAD ARRANGED TO RECORD TRACKS ON THE RECORD MEDIUM EXTENDING IN LINES ACROSS THE MAGNETIC MEDIUM WHICH ARE GENERALLY AT A SKEW ANGLE WITH RESPECT TO THE DIRECTION OF MOVEMENT OF THE MAGNETIC MEDIUM, WITH THE BEGINNING AND END OF EACH TRACK ON THE RECORD MEDIUM BEING OFFSET FROM EACH OTHER IN THE DIRECTION OF MOVEMENT OF THE RECORD MEDIUM A DISTANCE SUBSTANTIALLY MOVEMENT OF THE RECORD MEDIUM RECORD MEDIUM TRAVELS DURING RECORDING OF THE TRACK, SAID MAGNETIC RECORDING HEAD BEING ENERGIZED BY A SIGNAL CURRENT INCLUDING SYNCHRONIZING SIGNALS OCCURING AT PREDETERMINED INTERVALS AND SAID MAGNETIC RECORDING HEAD RECORDING SAID SYNCHRONIZING SIGNALS ON SAID TRACKS WITH THE SYNCHRONIZING SIGNALS ON ADJACENT TRACKS BEING ALIGNED IN A DIRECTION PERPENDICULAR TO THE EFFECTIVE SCANNING DIRECTION OF THE MAGNETIC RECORDING HEAD.
Claim 2
Dependent Claim
140 words
A MAGNETIC RECORDING SYSTEM COMPRISING A MAGNETIC MEDIUM, AND A MAGNETIC RECORDING HEAD ARRANGED TO RECORD TRACKS ON THE RECORD MEDIUM EXTENDING IN LINES ACROSS THE MAGNETIC MEDIUM WHICH ARE GENERALLY AT A SKEW ANGLE WITH RESPECT TO THE DIRECTION OF MOVEMENT OF THE MAGNETIC MEDIUM, WITH THE BEGINNING AND END OF EACH TRACK ON THE RECORD MEDIUM BEING OFFSET FROM EACH OTHER IN THE DIRECTION OF MOVEMENT OF THE RECORD MEDIUM A DISTANCE SUBSTANTIALLY MOVEMENT OF THE RECORD MEDIUM RECORD MEDIUM TRAVELS DURING RECORDING OF THE TRACK, SAID MAGNETIC RECORDING HEAD BEING ENERGIZED BY A SIGNAL CURRENT INCLUDING SYNCHRONIZING SIGNALS OCCURING AT PREDETERMINED INTERVALS AND SAID MAGNETIC RECORDING HEAD RECORDING SAID SYNCHRONIZING SIGNALS ON SAID TRACKS WITH THE SYNCHRONIZING SIGNALS ON ADJACENT TRACKS BEING ALIGNED IN A DIRECTION PERPENDICULAR TO THE EFFECTIVE SCANNING DIRECTION OF THE MAGNETIC RECORDING HEAD.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |