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Patent US3189694A successfully refreshed from Google Patents.
US3189694A
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Carrier current communication systems incorporating repeaters
Assignee: International Standard Electric Corp
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Filing: 1960-01-28
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Granted: 1965-06-15
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Expires: 1980-01-28
Abstract
No abstract record available.
Inventors
- 👤 Frankton William Jesse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:34
CPC Classifications
H; H04; H04J; H04J1/00; H04J1/02; H04J1/16; H04B; H04B17/00; H04B17/40; H04B17/401; H04B17/402; H04B17/405
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
IN A CARRIER CURRENT COMMUNICATION SYSTEM FOR TRANSMITTING SIGNALS BETWEEN A FIRST STATION AND A SECOND STATION OVER A TRANSMISSION LINE INTERCONNECTING SAID STATIONS AND INCLUDING A PLURALITY OF SERIALLY RELATED REPEATERS EACH HAVING A SEPARATE INDEXING FREQUENY ASSIGNED THERETO, MEANS IN THE FIRST STATION FOR TRANSMITTING AN INDEXING FREQUENCY AND A TEST FREQUENCY OVER SAID LINE TO A SELECTED REPEATER HAVING THE CORRESPONDING INDEXING FREQUENCY ASSIGNED THERETO, AND MEANS IN THE SAID SELECTED REPEATER FOR RESPONDING TO SAID TRANSMITTED FREQUENCIES TO PROVIDE TEST INFORMATION TO SAID FIRST STATION, THE LASTSAID MEANS INCLUDING MEANS FOR AMPLIFYING SAID TRANSMITTED INDEXING FREQUENCY, MEANS FOR FREQUENCY MULTIPLYING SAID AMPLIFIED FREQUENCY, MEANS FOR AMPLIFYING SAID MULTIPLIED FREQUENCY, MEANS FOR MODULATING SAID AMPLIFIED MULTIPLIED FREQUENCY WITH SAID TRANSMITTED TEST FREQUENCY, MEANS FOR DERIVING A SIDE BAND FREQUENCY OF SAID MODULATED FREQUENCIES, AND MEANS FOR TRANSMITTING SAID SIDE BAND FREQUENCY TO SAID FIRST STATION.
Claim 2
Dependent Claim
148 words
IN A CARRIER CURRENT COMMUNICATION SYSTEM FOR TRANSMITTING SIGNALS BETWEEN A FIRST STATION AND A SECOND STATION OVER A TRANSMISSION LINE INTERCONNECTING SAID STATIONS AND INCLUDING A PLURALITY OF SERIALLY RELATED REPEATERS EACH HAVING A SEPARATE INDEXING FREQUENY ASSIGNED THERETO, MEANS IN THE FIRST STATION FOR TRANSMITTING AN INDEXING FREQUENCY AND A TEST FREQUENCY OVER SAID LINE TO A SELECTED REPEATER HAVING THE CORRESPONDING INDEXING FREQUENCY ASSIGNED THERETO, AND MEANS IN THE SAID SELECTED REPEATER FOR RESPONDING TO SAID TRANSMITTED FREQUENCIES TO PROVIDE TEST INFORMATION TO SAID FIRST STATION, THE LASTSAID MEANS INCLUDING MEANS FOR AMPLIFYING SAID TRANSMITTED INDEXING FREQUENCY, MEANS FOR FREQUENCY MULTIPLYING SAID AMPLIFIED FREQUENCY, MEANS FOR AMPLIFYING SAID MULTIPLIED FREQUENCY, MEANS FOR MODULATING SAID AMPLIFIED MULTIPLIED FREQUENCY WITH SAID TRANSMITTED TEST FREQUENCY, MEANS FOR DERIVING A SIDE BAND FREQUENCY OF SAID MODULATED FREQUENCIES, AND MEANS FOR TRANSMITTING SAID SIDE BAND FREQUENCY TO SAID FIRST STATION.
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) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |