US3214519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reproducing system
Assignee: Telefunken AG
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Filing: 1961-12-14
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Granted: 1965-10-26
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Expires: 1981-12-14
Abstract
No abstract record available.
Inventors
- 👤 Fouque Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:11
CPC Classifications
H; H04; H04S; H04S5/00; H04S1/00; H04S1/002; H04S1/005; H04S2400/00; H04S2400/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A SYSTEM FOR RECORDING OR REPRODUCING SOUND TO SIMULATE THE ORIGINAL SOUND SOURCE AS PICKED UP BY A RECEIVER AND AS REFLECTED FROM THE WALLS OF A STUDIO, COMPRISING, IN COMBINATION: TWO INTERCONNECTED CHANNELS, EACH CHANNEL INCLUDING FIRST MEANS FOR PROVIDING ONE PORTION OF THE SIGNAL CORRESPONDING TO THE SOUND WHICH ARRIVES AT A RECEIVER FROM A SOUND SOURCE ON A DIRECT PATH IN A STUDIO, SECOND MEANS CONNECTED WITH THE OTHER CHANNEL FOR PROVIDING ANOTHER PORTION OF THE SIGNAL CORRESPONDING TO THE SOUND WHICH ARRIVES AT A RECEIVER FROM A SOUND SOURCE ON AN INDIRECT PATH IN A STUDIO AND WHICH IS AT LEAST IN PART DERIVED FROM THE OTHER CHANNEL, EACH SECOND MEANS INCLUDING TIME DELAY MEANS SO THAT THE OTHER SIGNAL PORTION IS PROVIDED WITH A TIME DELAY WITH RESPECT TO THE ONE SIGNAL PORTION, AND MEANS FOR CAUSING A FURTHER DELAY IN A PORTION OF THE DELAYED SIGNAL OF SAID SECOND MEANS AND FEEDING IT BACK TO THE SAME CHANNEL FROM WHICH IT ORIGINATED.
Claim 2
Independent Claim
168 words
A SYSTEM FOR RECORDING OR REPRODUCING SOUND TO SIMULATE THE ORIGINAL SOUND SOURCE AS PICKED UP BY A RECEIVER AND AS REFLECTED FROM THE WALLS OF A STUDIO, COMPRISING, IN COMBINATION: TWO INTERCONNECTED CHANNELS, EACH CHANNEL INCLUDING FIRST MEANS FOR PROVIDING ONE PORTION OF THE SIGNAL CORRESPONDING TO THE SOUND WHICH ARRIVES AT A RECEIVER FROM A SOUND SOURCE ON A DIRECT PATH IN A STUDIO, SECOND MEANS CONNECTED WITH THE OTHER CHANNEL FOR PROVIDING ANOTHER PORTION OF THE SIGNAL CORRESPONDING TO THE SOUND WHICH ARRIVES AT A RECEIVER FROM A SOUND SOURCE ON AN INDIRECT PATH IN A STUDIO AND WHICH IS AT LEAST IN PART DERIVED FROM THE OTHER CHANNEL, EACH SECOND MEANS INCLUDING TIME DELAY MEANS SO THAT THE OTHER SIGNAL PORTION IS PROVIDED WITH A TIME DELAY WITH RESPECT TO THE ONE SIGNAL PORTION, AND MEANS FOR CAUSING A FURTHER DELAY IN A PORTION OF THE DELAYED SIGNAL OF SAID SECOND MEANS AND FEEDING IT BACK TO THE SAME CHANNEL FROM WHICH IT ORIGINATED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |