US3110771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial reverberation network
Assignee: AT&T Inc
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Filing: 1960-09-29
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Granted: 1963-11-12
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Expires: 1980-09-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Benjamin F Logan
- 👤 Manfred R Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:22
CPC Classifications
G; G10; G10K; G10K15/00; G10K15/08; G10K15/10; G10K15/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
APPARATUS COMPRISING AN INPUT TERMINAL SUPPLIED WITH AUDIO FREQUENCY SIGNALS, AN OUTPUT TERMINAL, AND A PLURALITY OF INTERCONNECTED ALL-PASS NETWORKS COUPLING SAID INPUT AND SAID OUTPUT TERMINALS, EACH OF SAID ALL-PASS NETWORKS COMPRISING MEANS FOR DELAYING SIGNALS APPLIED THERETO, MEANS FOR ALTERING THE GAIN OF THE DELAYED SIGNALS, MEANS FOR MIXING A PORTION OF SAID ALTERED DELAYED SIGNALS WITH SIGNALS APPLIED TO SAID NETWORK TO PRODUCE INPUT SIGNALS FOR SAID DELAY MEANS, MEANS FOR ADJUSTING THE GAIN OF SAID APPLIED SIGNALS, MEANS FOR MIXING SAID GAIN ADJUSTED SIGNALS WITH SAID DELAYED SIGNALS TO PRODUCE NETWORK OUTPUT SIGNALS.
Claim 2
Dependent Claim
97 words
APPARATUS COMPRISING AN INPUT TERMINAL SUPPLIED WITH AUDIO FREQUENCY SIGNALS, AN OUTPUT TERMINAL, AND A PLURALITY OF INTERCONNECTED ALL-PASS NETWORKS COUPLING SAID INPUT AND SAID OUTPUT TERMINALS, EACH OF SAID ALL-PASS NETWORKS COMPRISING MEANS FOR DELAYING SIGNALS APPLIED THERETO, MEANS FOR ALTERING THE GAIN OF THE DELAYED SIGNALS, MEANS FOR MIXING A PORTION OF SAID ALTERED DELAYED SIGNALS WITH SIGNALS APPLIED TO SAID NETWORK TO PRODUCE INPUT SIGNALS FOR SAID DELAY MEANS, MEANS FOR ADJUSTING THE GAIN OF SAID APPLIED SIGNALS, MEANS FOR MIXING SAID GAIN ADJUSTED SIGNALS WITH SAID DELAYED SIGNALS TO PRODUCE NETWORK OUTPUT SIGNALS.
References Cited (Backward Citations)
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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) | 1966-11-11 | 1967-05-13 | 1967-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-11 | 1971-05-13 | 1971-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-11 | 1975-05-13 | 1975-11-12 | $7700.00 | Window Closed / Lapsed |