US3102928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vocoder excitation generator
Assignee: AT&T Inc
•
Filing: 1960-12-23
•
Granted: 1963-09-03
•
Expires: 1980-12-23
Abstract
No abstract record available.
Inventors
- 👤 Manfred R Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:28
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/66; H04B1/667
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN A SYSTEM FOR THE ARTIFICIAL RECONSTRUCTION OF SPEECH, MEANS FOR GENERATING A COMPLEX WAVE COMPOSED OF A PLURALITY OF DIFFERENT HARMONIC COMPONENTS WHOSE PHASES ARE SELECTED TO ESTABLISH A LOW PEAK-FACTOR FOR SAID COMPLEX WAVE, MEANS FOR CONTINUOUSLY ADJUSTING THE FUNDAMENTAL PERIOD OF SAID COMPLEX WAVE IN ACCORDANCE WITH THE FUNDAMENTAL PERIOD OF A SPEECH WAVE DURING VOICED SPEECH INTERVALS AND IN ACCORDANCE WITH A RANDOM SCHEDULE DURING UNVOICED SPEECH INTERVALS, A SPECTRUM SYNTHESIZER UNDER CONTROL OF A PLURALITY OF SPECTRUM CONTROL SIGNALS EACH REPRESENTATIVE OF THE SPEECH ENERGY FALLING WITHIN A PLURALITY OF FREQUENCY SUB-BANDS OF SAID SPEECH WAVE, MEANS FOR SHAPING SAID COMPLEX WAVE INDIVIDUALLY IN EACH OF A NUMBER OF PARALLEL PATHS IN ACCORDANCE WITH EACH OF SAID SPECTRUM CONTROL SIGNALS, RESPECTIVELY, AND
Claim 2
Dependent Claim
127 words
IN A SYSTEM FOR THE ARTIFICIAL RECONSTRUCTION OF SPEECH, MEANS FOR GENERATING A COMPLEX WAVE COMPOSED OF A PLURALITY OF DIFFERENT HARMONIC COMPONENTS WHOSE PHASES ARE SELECTED TO ESTABLISH A LOW PEAK-FACTOR FOR SAID COMPLEX WAVE, MEANS FOR CONTINUOUSLY ADJUSTING THE FUNDAMENTAL PERIOD OF SAID COMPLEX WAVE IN ACCORDANCE WITH THE FUNDAMENTAL PERIOD OF A SPEECH WAVE DURING VOICED SPEECH INTERVALS AND IN ACCORDANCE WITH A RANDOM SCHEDULE DURING UNVOICED SPEECH INTERVALS, A SPECTRUM SYNTHESIZER UNDER CONTROL OF A PLURALITY OF SPECTRUM CONTROL SIGNALS EACH REPRESENTATIVE OF THE SPEECH ENERGY FALLING WITHIN A PLURALITY OF FREQUENCY SUB-BANDS OF SAID SPEECH WAVE, MEANS FOR SHAPING SAID COMPLEX WAVE INDIVIDUALLY IN EACH OF A NUMBER OF PARALLEL PATHS IN ACCORDANCE WITH EACH OF SAID SPECTRUM CONTROL SIGNALS, RESPECTIVELY, AND
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) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |