US3294914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency multiplex repeater station having channel drop facilities
Assignee: International Standard Electric Corp
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Filing: 1963-04-10
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Granted: 1966-12-27
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Expires: 1983-04-10
Abstract
No abstract record available.
Inventors
- 👤 Martin Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:55
CPC Classifications
H; H04; H04B; H04B3/00; H04B3/54; H04B3/58; H04J; H04J1/00; H04J1/02; H04J1/08; H04J1/085; H04J1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A REPEATER TERMINAL FOR A FREQUENCY DIVISION MULTIPLEX SYSTEM TRANSMITTING A MULTIPLEX SIGNAL INCLUDING A PLURALITY OF FREQUENCY SPACED SIGNAL CHANNELS COMPRISING: A RECEIVER FOR SAID MULTIPLEX SIGNAL; A TRANSMITTER FOR SAID MULTIPLEX SIGNAL COUPLED TO SAID RECEIVER; MEANS COUPLED TO SAID RECEIVER TO REMOVE THE SIGNALS OF GIVEN ONES OF SAID CHANNELS FROM SAID MULTIPLEX SIGNAL; AND MEANS COUPLED TO SAID MEANS TO REMOVE TO CANCEL SAID SIGNALS OF SAID GIVEN ONES OF SAID CHANNELS FROM SAID MULTIPLEX SIGNAL IN SAID TRANSMITTER; SAID MEANS TO CANCEL INCLUDING A PHASE INVERTER MEANS COUPLED TO SAID MEANS TO REMOVE TO REVERSE THE PHASE OF SAID SIGNALS OF SAID GIVEN ONES OF SAID CHANNELS; AND A FREQUENCY MODULATOR COUPLED BETWEEN SAID PHASE INVERTER AND SAID TRANSMITTER.
Claim 2
Dependent Claim
124 words
A REPEATER TERMINAL FOR A FREQUENCY DIVISION MULTIPLEX SYSTEM TRANSMITTING A MULTIPLEX SIGNAL INCLUDING A PLURALITY OF FREQUENCY SPACED SIGNAL CHANNELS COMPRISING: A RECEIVER FOR SAID MULTIPLEX SIGNAL; A TRANSMITTER FOR SAID MULTIPLEX SIGNAL COUPLED TO SAID RECEIVER; MEANS COUPLED TO SAID RECEIVER TO REMOVE THE SIGNALS OF GIVEN ONES OF SAID CHANNELS FROM SAID MULTIPLEX SIGNAL; AND MEANS COUPLED TO SAID MEANS TO REMOVE TO CANCEL SAID SIGNALS OF SAID GIVEN ONES OF SAID CHANNELS FROM SAID MULTIPLEX SIGNAL IN SAID TRANSMITTER; SAID MEANS TO CANCEL INCLUDING A PHASE INVERTER MEANS COUPLED TO SAID MEANS TO REMOVE TO REVERSE THE PHASE OF SAID SIGNALS OF SAID GIVEN ONES OF SAID CHANNELS; AND A FREQUENCY MODULATOR COUPLED BETWEEN SAID PHASE INVERTER AND SAID TRANSMITTER.
References Cited (Backward Citations)
US3180938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |