US3512160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiplex transmission systems
Assignee: AT&T Inc
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Filing: 1960-12-29
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Granted: 1970-05-12
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Expires: 1980-12-29
Abstract
No abstract record available.
Inventors
- 👤 Thrygve R Meeker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:32
CPC Classifications
H; H04; H04J; H04J99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A MULTIPLEX TRANSMISSION SYSTEM COMPRISING A PLURALITY OF PULSE SIGNAL SOURCES, DISPERSIVE DELAY MEANS FOR EACH OF SAID SOURCES HAVING A DELAY VERSUS FREQUENCY CHARACTERISTIC WHICH IS SIGNIFICANTLY DIFFERENT FROM THAT OF THE DISPERSIVE DELAY MEANS ASSOCIATED WITH EACH OF THE OTHER SOURCES, A PULSE TRANSMISSION FACILITY, MEANS FOR APPLYING THE DISPERSED PULSES FROM SAID DISPERSIVE MEANS TO SAID FACILITY, A PLURALITY OF RECEIVERS, AND MEANS FOR DISTRIBUTING PULSES FROM SAID FACILITY TO INDIVIDUAL RECEIVERS COMPRISING COLLAPSE DELAY MEANS FOR EACH OF SAID RECEIVERS HAVING A UNIQUE DELAY VERSUS FREQUENCY CHARACTERISTIC WHICH IS COMPLEMENTARY OVER A GIVEN FREQUENCY RANGE TO THAT OF THE DISPERSIVE DELAY MEANS OF ONE OF SAID SOURCES.
Claim 2
Dependent Claim
111 words
A MULTIPLEX TRANSMISSION SYSTEM COMPRISING A PLURALITY OF PULSE SIGNAL SOURCES, DISPERSIVE DELAY MEANS FOR EACH OF SAID SOURCES HAVING A DELAY VERSUS FREQUENCY CHARACTERISTIC WHICH IS SIGNIFICANTLY DIFFERENT FROM THAT OF THE DISPERSIVE DELAY MEANS ASSOCIATED WITH EACH OF THE OTHER SOURCES, A PULSE TRANSMISSION FACILITY, MEANS FOR APPLYING THE DISPERSED PULSES FROM SAID DISPERSIVE MEANS TO SAID FACILITY, A PLURALITY OF RECEIVERS, AND MEANS FOR DISTRIBUTING PULSES FROM SAID FACILITY TO INDIVIDUAL RECEIVERS COMPRISING COLLAPSE DELAY MEANS FOR EACH OF SAID RECEIVERS HAVING A UNIQUE DELAY VERSUS FREQUENCY CHARACTERISTIC WHICH IS COMPLEMENTARY OVER A GIVEN FREQUENCY RANGE TO THAT OF THE DISPERSIVE DELAY MEANS OF ONE OF SAID SOURCES.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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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) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |