US3775565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit arrangement for centrally controlled telephone exchange installations
Assignee: Individual
•
Filing: 1971-05-24
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Granted: 1973-11-27
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Expires: 1991-05-24
Abstract
Abstract A circuit arrangement for centrally controlled long distance telephone exchange installations, wherein central information transmission circuits are provided between central control means and centrally controlled individual apparatus. The latter may, for example, comprise internal connection sets, long distance line repeaters, exchange office repeaters in subscriber installations with extension stations, registers, dial receivers and the like in which connections of the centrally controlled individual apparatuses to the information transmission circuits are jointly controlled. In the centrally controlled exchange installation, there is provided between the central control mechanism and the centrally controlled individual apparatus, at the location of the latter, a common connection mechanism which receives connection commands through the address informaton from the central control mechanism. The common connection mechanism controls the connection of the individual apparatus to information lines over connection circuits.
Inventors
- 👤 K Rutkowski
- 👤 K Kunert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:14
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/42; H04Q3/54; H04Q3/545
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
282 words
A circuit arrangement for centrally controlled telecommunication exchange installations hAving central information transmission circuits interposed between central control means and centrally controlled individual apparatuses, and wherein connection of the centrally controlled individual apparatuses to the information transmission circuits is jointly controlled, comprising: connection control means common to a plurality of centrally controlled individual apparatuses assigned thereto and interposed between said central control means and the centrally controlled individual apparatuses to constitute, along with interconnecting transmission lines, said information transmission circuits, address and information transmission and receiving means each of which is adapted to be assigned to a first transmission line segment of said information transmission circuits connected between said central control means and said connection control means common to the centrally controlled individual apparatuses, said first line segment being connected to be able to transmit information jointly with the one address of that centrally controlled individual apparatus with which an information exchange is taking place, a second line segment of the information transmission circuits connected between said connection control means and said centrally controlled individual apparatuses, said individual apparatuses being spatially arranged in a series relationship along said second line segment, each said individual apparatus having switching means for electrically connecting the individual apparatus to said second line segment, so that the individual apparatuses are electrically connectable to said second line segment in a parallel relationship one with the other, and connection circuits for operating said switching means and establishing the connection of centrally controlled individual apparatuses to the information transmission circuits under the control of the connection control means corresponding to the transmitted address, each connection circuit being connected only between the connection control means and a centrally controlled individual apparatus.
Claim 2
Dependent Claim
282 words
A circuit arrangement for centrally controlled telecommunication exchange installations hAving central information transmission circuits interposed between central control means and centrally controlled individual apparatuses, and wherein connection of the centrally controlled individual apparatuses to the information transmission circuits is jointly controlled, comprising: connection control means common to a plurality of centrally controlled individual apparatuses assigned thereto and interposed between said central control means and the centrally controlled individual apparatuses to constitute, along with interconnecting transmission lines, said information transmission circuits, address and information transmission and receiving means each of which is adapted to be assigned to a first transmission line segment of said information transmission circuits connected between said central control means and said connection control means common to the centrally controlled individual apparatuses, said first line segment being connected to be able to transmit information jointly with the one address of that centrally controlled individual apparatus with which an information exchange is taking place, a second line segment of the information transmission circuits connected between said connection control means and said centrally controlled individual apparatuses, said individual apparatuses being spatially arranged in a series relationship along said second line segment, each said individual apparatus having switching means for electrically connecting the individual apparatus to said second line segment, so that the individual apparatuses are electrically connectable to said second line segment in a parallel relationship one with the other, and connection circuits for operating said switching means and establishing the connection of centrally controlled individual apparatuses to the information transmission circuits under the control of the connection control means corresponding to the transmitted address, each connection circuit being connected only between the connection control means and a centrally controlled individual apparatus.
Claim 3
Dependent Claim
48 words
The circuit arrangement defined in claim 1, wherein said connection control means comprises: storage means for information to be transmitted from the centrally controlled individual apparatuses to the central control means and for information to be transmitted from the central control means to the centrally controlled individual apparatuses.
Claim 4
Dependent Claim
42 words
The circuit arrangement defined in claim 1, wherein several spatially combined groups of centrally controlled individual apparatuses are formed having one individual connection control means for each group, each of said connection control means being connected with a common central control means.
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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |