US3684837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the synchronization of oscillators pertaining to at least two long distance communication network systems
Assignee: Individual
•
Filing: 1969-05-21
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Granted: 1972-08-15
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Expires: 1989-05-21
Abstract
Abstract A method for the synchronization of oscillators pertaining to at least two long distance communication network systems, the oscillators of each long distance communication network system being reciprocally synchronized within, the long distance communication network systems having exchange systems operating in multiplex manner according to a scanning pattern. At least one oscillator of one of the at least two long distance communication network systems is synchronized by at least one oscillator of at least one other of the at least two long distance communication network systems.
Inventors
- 👤 Lothar Hartmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:33
CPC Classifications
H; H04; H04J; H04J1/00; H04J1/02; H04J1/06; H04J1/065; H04J3/00; H04J3/02; H04J3/06; H04J3/0635; H04J3/0638; H04J3/0647
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
162 words
In a plurality of long distance telecommunication systems, each system being comprised of a plurality of interconnected exchange stations with each exchange station having a plurality of subscriber stations connected thereto, the exchange stations in each said system being in communication according to either of the time or frequency multiplex principles and according to a predetermined scanning pattern with the oscillators in each said system being reciprocally synchronized, the oscillators in at least one of said systems having an approximately equal frequency fluctuation range, while the oscillators in at least one other telecommunication system having a varying fluctuation range, a method of synchronizing the oscillators in at least said two systems comprising the step of: synchronizing an oscillator of one of said telecommunication systems by an oscillator of at least one other of said telecommunication systems, the oscillators of the latter system having a frequency fluctuation range, which is narrower than that of the oscillators of said one long distance telecommunication system.
Claim 2
Dependent Claim
162 words
In a plurality of long distance telecommunication systems, each system being comprised of a plurality of interconnected exchange stations with each exchange station having a plurality of subscriber stations connected thereto, the exchange stations in each said system being in communication according to either of the time or frequency multiplex principles and according to a predetermined scanning pattern with the oscillators in each said system being reciprocally synchronized, the oscillators in at least one of said systems having an approximately equal frequency fluctuation range, while the oscillators in at least one other telecommunication system having a varying fluctuation range, a method of synchronizing the oscillators in at least said two systems comprising the step of: synchronizing an oscillator of one of said telecommunication systems by an oscillator of at least one other of said telecommunication systems, the oscillators of the latter system having a frequency fluctuation range, which is narrower than that of the oscillators of said one long distance telecommunication system.
Claim 3
Dependent Claim
136 words
A method as recited in claim 1 further comprising: synchronizing an oscillator of at least one long distance communication network system by the oscillator of at least one other long distance communication system, the oscillators of the latter having a frequency fluctuation range fs, which is narrower than the frequency range of forced oscillation fres about nE/N2 lambda E of the oscillators pertaining to said at least one long distance communication network system, wherein nE designates the range in the number of connections from oscillators of the at least one other mentioned long distance communication network systems to oscillators of the at least one long distance communication network system, N the number of the oscillators pertaining to the at least one long distance communication network system, and lambda E the control range of the later oscillators.
References Cited (Backward Citations)
US3483330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |