US3307106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse modulated duplex radio communication system with interference prevention means
Assignee: Individual
•
Filing: 1964-08-26
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Granted: 1967-02-28
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Expires: 1984-08-26
Abstract
No abstract record available.
Inventors
- 👤 Reindl Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:18
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/38; H04B1/40; H04B1/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A COMMUNICATION SYSTEM COMPRISING A PLURALITY OF STATIONS, EACH OF SAID STATIONS COMPRISING A TRANSCEIVER ADAPTED FOR DUPLEX OPERATION, EACH SAID TRANSCEIVER COMPRISING A TRANSMITTER ADAPTED TO EMIT A TRAIN OF MODULATED RADIO FREQUENCY PULSES, EACH OF SAID TRANSMITTERS HAVING A DIFFERENT CARRIER FREQUENCY EACH DEFINING A DIFFERENT CHANNEL, THE PULSE REPETITION RATE OF EACH OF SAID TRANSMITTERS BEING DETERMINED BY A NORMALLY FREE-RUNNING OSCILLATOR, EACH OF SAID OSCILLATORS HAVING A SLIGHTLY DIFFERENT FREE-RUNNING FREQUENCY; EACH OF SAID TRANSCEIVERS FURTHER COMPRISING A RECEIVER TUNABLE TO EACH OF SAID DIFFERENT CHANNELS, MEANS CONNECTED TO SAID RECEIVER TO DETECT INTERFERENCE FROM NEARBY TRANSMISSIONS AND MEANS TO SYNCHRONIZE SAID OSCILLATOR IN FREQUENCY AND PHASE WITH SAID NEARBY TRANSMISSIONS.
Claim 2
Dependent Claim
115 words
A COMMUNICATION SYSTEM COMPRISING A PLURALITY OF STATIONS, EACH OF SAID STATIONS COMPRISING A TRANSCEIVER ADAPTED FOR DUPLEX OPERATION, EACH SAID TRANSCEIVER COMPRISING A TRANSMITTER ADAPTED TO EMIT A TRAIN OF MODULATED RADIO FREQUENCY PULSES, EACH OF SAID TRANSMITTERS HAVING A DIFFERENT CARRIER FREQUENCY EACH DEFINING A DIFFERENT CHANNEL, THE PULSE REPETITION RATE OF EACH OF SAID TRANSMITTERS BEING DETERMINED BY A NORMALLY FREE-RUNNING OSCILLATOR, EACH OF SAID OSCILLATORS HAVING A SLIGHTLY DIFFERENT FREE-RUNNING FREQUENCY; EACH OF SAID TRANSCEIVERS FURTHER COMPRISING A RECEIVER TUNABLE TO EACH OF SAID DIFFERENT CHANNELS, MEANS CONNECTED TO SAID RECEIVER TO DETECT INTERFERENCE FROM NEARBY TRANSMISSIONS AND MEANS TO SYNCHRONIZE SAID OSCILLATOR IN FREQUENCY AND PHASE WITH SAID NEARBY TRANSMISSIONS.
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |