Patent US3082296A successfully refreshed from Google Patents.
US3082296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single side-band multichannel carrier system
Assignee: TDK Micronas GmbH
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Filing: 1958-05-01
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Granted: 1963-03-19
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Expires: 1978-05-01
Abstract
No abstract record available.
Inventors
- 👤 Robert S Caruthers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:30
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
235 words
A COMBINED UPPER AND LOWER SIDEBAND SYSTEM FOR TRANSMITTING AND RECEIVING TWO SIGNALS SIMULTANEOUSLY ON A SINGLE FREQUENCY CARRIER WAVE COMPRISING A LOW FREQUENCY SIGNAL CONVERTER AND A HIGH FREQUENCY SIGNAL CONVERTER, EACH CONVERTER HAVING A FIRST CHANNEL AND A SECOND CHANNEL ASSOCIATED THEREWITH, MEANS IN THE LOW FREQUENCY CONVERTER FOR CONVERTING FIRST CHANNEL INPUT SIGNALS INTO A PAIR OF CO-PHASAL SIGNALS AND FOR CONVERTING SECOND CHANNEL INPUT SIGNALS INTO A PAIR OF ANTI-PHASAL SIGNALS, A PAIR OF CIRCUIT BRANCHES INTERCONNECTING SAID SIGNAL CONVERTERS, MEANS FOR GENERATING A CARRIER WAVE OF A PREDETERMINED FREQUENCY, FIRST MEANS FOR CONNECTING THE SAID CARRIER WAVE TO ONE OF SAID BRANCHES AND SECOND MEANS INCLUDING MEANS FOR PHASE SHIFTING SAID CARRIER WAVE AND CONNECTING IT TO SAID OTHER BRANCH, MEANS IN EACH OF SAID CIRCUIT BRANCHES FOR PHASE-SHIFTING ONE SIGNAL OF EACH PAIR OF CONVERTED CHANNEL SIGNALS, FOR MODULATING SAID CARRIER WAVES WITH SAID CONVERTED CHANNEL SIGNALS AND FOR TRANSFERRING SAID MODULATED CARRIER WAVES TO SAID HIGH FREQUENCY CONVERTER, MEANS IN THE HIGH FREQUENCY CONVERTER FOR COMBINING SAID TRANSFERRED MODULATED CARRIER WAVES INTO A LOWER SIDEBAND CARRIER COMPRISED OF THE SAID PREDETERMINED FREQUENCY MODULATED BY SAID FIRST CHANNEL INPUT SIGNALS AND INTO AN UPPER SIDEBAND CARRIER WAVE COMPRISED OF THE SAID PREDETERMINED FREQUENCY MODULATED BY SAID SECOND CHANNEL INPUT SIGNALS, AND MEANS IN THE HIGH FREQUENCY CONVERTER FOR TRANSFERRING THE SAID SIDEBAND WAVES OVER SAID ITS FIRST ASSOCIATED CHANNEL.
Claim 2
Dependent Claim
235 words
A COMBINED UPPER AND LOWER SIDEBAND SYSTEM FOR TRANSMITTING AND RECEIVING TWO SIGNALS SIMULTANEOUSLY ON A SINGLE FREQUENCY CARRIER WAVE COMPRISING A LOW FREQUENCY SIGNAL CONVERTER AND A HIGH FREQUENCY SIGNAL CONVERTER, EACH CONVERTER HAVING A FIRST CHANNEL AND A SECOND CHANNEL ASSOCIATED THEREWITH, MEANS IN THE LOW FREQUENCY CONVERTER FOR CONVERTING FIRST CHANNEL INPUT SIGNALS INTO A PAIR OF CO-PHASAL SIGNALS AND FOR CONVERTING SECOND CHANNEL INPUT SIGNALS INTO A PAIR OF ANTI-PHASAL SIGNALS, A PAIR OF CIRCUIT BRANCHES INTERCONNECTING SAID SIGNAL CONVERTERS, MEANS FOR GENERATING A CARRIER WAVE OF A PREDETERMINED FREQUENCY, FIRST MEANS FOR CONNECTING THE SAID CARRIER WAVE TO ONE OF SAID BRANCHES AND SECOND MEANS INCLUDING MEANS FOR PHASE SHIFTING SAID CARRIER WAVE AND CONNECTING IT TO SAID OTHER BRANCH, MEANS IN EACH OF SAID CIRCUIT BRANCHES FOR PHASE-SHIFTING ONE SIGNAL OF EACH PAIR OF CONVERTED CHANNEL SIGNALS, FOR MODULATING SAID CARRIER WAVES WITH SAID CONVERTED CHANNEL SIGNALS AND FOR TRANSFERRING SAID MODULATED CARRIER WAVES TO SAID HIGH FREQUENCY CONVERTER, MEANS IN THE HIGH FREQUENCY CONVERTER FOR COMBINING SAID TRANSFERRED MODULATED CARRIER WAVES INTO A LOWER SIDEBAND CARRIER COMPRISED OF THE SAID PREDETERMINED FREQUENCY MODULATED BY SAID FIRST CHANNEL INPUT SIGNALS AND INTO AN UPPER SIDEBAND CARRIER WAVE COMPRISED OF THE SAID PREDETERMINED FREQUENCY MODULATED BY SAID SECOND CHANNEL INPUT SIGNALS, AND MEANS IN THE HIGH FREQUENCY CONVERTER FOR TRANSFERRING THE SAID SIDEBAND WAVES OVER SAID ITS FIRST ASSOCIATED CHANNEL.
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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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |