US3246084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for speech compression and the like
Assignee: RTX BBN Technologies Corp
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Filing: 1960-08-26
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Granted: 1966-04-12
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Expires: 1980-08-26
Abstract
No abstract record available.
Inventors
- 👤 Karl D Kryter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:45
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
APPARATUS FOR TRANSMITTING AND REPRODUCING A SIGNAL HAVING COMPONENTS EXTENDING OVER A PREDETERMINED FREQUENCY BAND, THE APPARATUS HAVING, IN COMBINATION, A SIGNAL SOURCE, A FIRST PLURALITY OF CHANNEL CIRCUITS CONNECTED TO THE SOURCE AND EACH CORRESPONDING TO A DIFFERENT PREDETERMINED FREQUENCY SUB-BAND ONLY WITHIN THE SAID PREDETERMINED FREQUENCY BAND, EACH SUB-BAND BEING FREQUENCY SEPARATED FROM THE OTHER SUB-BANDS BY A PREDETERMINED, FIXED, SUBSTANTIAL FREQUENCY GAP SO AS TO SAMPLE THE SIGNAL, THE CHANNEL CIRCUITS BEING EACH PROVIDED WITH CONVERSION MEANS FOR PRODUCING CONTIGUOUS FURTHER FREQUENCY BANDS OF OVERALL BANDWITH LESS THAN THAT OF THE SAID PREDETERMINED FREQUENCY BAND AND OF HIGHER FREQUENCY THAN THE SUB-BANDS AND CORRESPONDING TO THE SEPARATED SUB-BANDS BUT WITHOUT ANY FREQUENCY GAPS THEREBETWEEN, THE CONVERSION MEANS OF EACH OF SAID CIRCUITS COMPRISING OSCILLATOR MEANS GENERATING AN EFFECTIVELY CONSTANT CARRIER FREQUENCY DIFFERENT FROM THE CARRIER FREQUENCY OF THE OTHER OSCILLATOR MEANS, MODULATOR MEANS HAVING AN INPUT APPLIED FROM THE ASSOCIATED OSCILLATOR
Claim 2
Dependent Claim
154 words
APPARATUS FOR TRANSMITTING AND REPRODUCING A SIGNAL HAVING COMPONENTS EXTENDING OVER A PREDETERMINED FREQUENCY BAND, THE APPARATUS HAVING, IN COMBINATION, A SIGNAL SOURCE, A FIRST PLURALITY OF CHANNEL CIRCUITS CONNECTED TO THE SOURCE AND EACH CORRESPONDING TO A DIFFERENT PREDETERMINED FREQUENCY SUB-BAND ONLY WITHIN THE SAID PREDETERMINED FREQUENCY BAND, EACH SUB-BAND BEING FREQUENCY SEPARATED FROM THE OTHER SUB-BANDS BY A PREDETERMINED, FIXED, SUBSTANTIAL FREQUENCY GAP SO AS TO SAMPLE THE SIGNAL, THE CHANNEL CIRCUITS BEING EACH PROVIDED WITH CONVERSION MEANS FOR PRODUCING CONTIGUOUS FURTHER FREQUENCY BANDS OF OVERALL BANDWITH LESS THAN THAT OF THE SAID PREDETERMINED FREQUENCY BAND AND OF HIGHER FREQUENCY THAN THE SUB-BANDS AND CORRESPONDING TO THE SEPARATED SUB-BANDS BUT WITHOUT ANY FREQUENCY GAPS THEREBETWEEN, THE CONVERSION MEANS OF EACH OF SAID CIRCUITS COMPRISING OSCILLATOR MEANS GENERATING AN EFFECTIVELY CONSTANT CARRIER FREQUENCY DIFFERENT FROM THE CARRIER FREQUENCY OF THE OTHER OSCILLATOR MEANS, MODULATOR MEANS HAVING AN INPUT APPLIED FROM THE ASSOCIATED OSCILLATOR
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |