US3273078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double sideband suppressed carrier modulator
Assignee: Unisys Corp
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Filing: 1963-07-01
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Granted: 1966-09-13
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Expires: 1983-07-01
Abstract
No abstract record available.
Inventors
- 👤 Mollinga Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:11
CPC Classifications
H; H03; H03C; H03C1/00; H03C1/52; H03C1/54; H03C1/542; H03C1/545
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
115 words
A BALANCE MODULATOR FOR PRODUCING DOUBLE SIDE BAND SUPPRESSED CARRIER MODULATED SIGNALS COMPRISING A FIRST SOURCE OF MODULATING SIGNALS, MEANS FOR SPLITTING THE MODULATING SIGNALS INTO TWO SIGNALS HAVING SUBSTANTIALLY EQUAL AMPLITUDE AND OPPOSITE PHASE RELATIONSHIPS, MEANS FOR UTILIZING THE OUTPUT SIGNAL OF THE BALANCED MODULATOR, A DIODE CORRESPONDING TO EACH OF THE TWO MODULATING SIGNALS, MEANS FOR APPLYING EACH SIGNAL IN PARALLEL THROUGH ITS CORRESPONDING DIODE TO THE UTILIZATION MEANS, MEANS FOR FORWARD BIASING BOTH DIODES, A SOURCE OF CARRIER SIGNAL, MEANS RESPONSIVE TO THE CARRIER SIGNAL SOURCE FOR ALTERNATELY SHUNTING TO GROUND REFERENCE FOR SUBSTANTIALLY EQUAL AMOUNTS OF TIME EACH OF THE TWO MODULATING SIGNALS SO AS TO BACK BIAS THE CORRESPONDING DIODE.
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |