US3768079A
Expired / Lapsed
US
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Method for connection control in program controlled processing systems
Assignee: Siemens AG
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Filing: 1972-02-24
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Granted: 1973-10-23
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Expires: 1992-02-24
Abstract
Abstract A method of operation for program controlled, computer operated telecommunication exchange systems is described. Each exchange system has incoming and outgoing lines connected over a line connection unit, and traffics cyclically with a memory unit over a transmission sequence control. The memory contains all data and programs necessary for operating the system. In the memory a storage cell is permanently assigned to each connection. A program control unit is provided for controlling all processing functions. Under the control of a program, signals are entered into feeder cells in the memory, which are assigned permanently to the incoming connection lines. The contents of the feeder cells are read out by the transmission sequence control during the following memory cycle for the feeder cell in question. The signal extracted from the feeder cell are evaluated for handling the next polarity change arriving on the line assigned to this feeder cell. Depending on a first signal, a polarity change arriving on an incoming connection line is entered into a first storage area of the memory, and depending on a second signal, a substitution block in the memory is assigned to the feeder cell. Responsive to a third signal, a polarity change arriving on an incoming connection line is forwarded to an outgoing connection line determined by an address contained in the feeder cell. For transmission of polarity changes through the system at the correct time command words are entered under the control of the program into a second storage area of the memory, and these command words are read out by the transmission sequence control during a search process started in specific time intervals.
Inventors
- 👤 H Bittermann
- 👤 A Hausenblas
- 👤 A Kammerl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:37
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/50; H04L12/52; G; G06; G06F; G06F13/00; G06F13/14; G06F13/20; G06F13/24; H04Q; H04Q3/00; H04Q3/42; H04Q3/54; H04Q3/545
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
540 words
A method of operation for receiving and transmitting data in the form of changes in polarity of the data signals in a program controlled telecommunication exchange system having incoming and outgoing lines connected thereto over a line connection unit, said exchange being in cyclic communication with at least one central storage unit over at least one transmission sequence control, said central storage unit containing all data and programs necessary for operating said exchange system, said storage unit having a feeder cell memory including a feeder cell permanently assigned to each of said lines connected with the line connection unit, each said feeder cell being addressed by an identification signal delivered by the line connection unit, the processing functions of said exchange system being under the control of programs in at least one program control unit, the method comprising the steps of: entering instruction signals into an operation portion of each of the feeder cells for handling the next change of polarity to carry out exchange functions occurring in said exchange system, the instructions signals being entered into the feeder cells under the control of said program control unit, reading out the content of one of said feeder cells during an operating cycle by said line connection unit, said one feeder cell being addressed by identifying a one of said incoming lines assigned to said one cell on which a change of polarity is detected, evaluating the content of said one addressed feeder cell for handling the next change of polarity arriving on said identified incoming line assigned to said feeder cell, entering, responsive to a first instruction signal formed by a first bit combination within the operation portion of the said one feeder cell, a change of polarity arriving on said identified incoming line into a first storage area of said storage unit, assigning, responsive to a second instruction signal formed by a second bit combination within the operation portion of the feeder cell, a substitution block of said storage unit to said one feeder cell, the address of said substitution block being read out of an address portion within the assigned feeder cell, forwarding, responsive to a third instruction signal formed by a third bit combination within the operation portion of said one feeder cell, a change of polarity arriving on said identified incoming line to one of said outgoing lines, the address of said one outgoing line being read out of the address portion within the assigned feeder cell, accessing said first storage area by means of said program control unit during a processing phase initiated at predetermined time intervals and starting one of said programs in said control unit with each entry found during the processing phase, the contents of the cell within said first storage area containing the entered change of polarity being extinguished, entering command words into a second storage area forming a command block within said storage unit under the control of said program control unit, and accessing said second storage area and reading out of said second storage area said command words by means of said transmission sequence control during a search process initiated in predetermined time intervals, whereby the changes of polarity are transmitted through the exchange system at the proper times.
Claim 2
Independent Claim
540 words
A method of operation for receiving and transmitting data in the form of changes in polarity of the data signals in a program controlled telecommunication exchange system having incoming and outgoing lines connected thereto over a line connection unit, said exchange being in cyclic communication with at least one central storage unit over at least one transmission sequence control, said central storage unit containing all data and programs necessary for operating said exchange system, said storage unit having a feeder cell memory including a feeder cell permanently assigned to each of said lines connected with the line connection unit, each said feeder cell being addressed by an identification signal delivered by the line connection unit, the processing functions of said exchange system being under the control of programs in at least one program control unit, the method comprising the steps of: entering instruction signals into an operation portion of each of the feeder cells for handling the next change of polarity to carry out exchange functions occurring in said exchange system, the instructions signals being entered into the feeder cells under the control of said program control unit, reading out the content of one of said feeder cells during an operating cycle by said line connection unit, said one feeder cell being addressed by identifying a one of said incoming lines assigned to said one cell on which a change of polarity is detected, evaluating the content of said one addressed feeder cell for handling the next change of polarity arriving on said identified incoming line assigned to said feeder cell, entering, responsive to a first instruction signal formed by a first bit combination within the operation portion of the said one feeder cell, a change of polarity arriving on said identified incoming line into a first storage area of said storage unit, assigning, responsive to a second instruction signal formed by a second bit combination within the operation portion of the feeder cell, a substitution block of said storage unit to said one feeder cell, the address of said substitution block being read out of an address portion within the assigned feeder cell, forwarding, responsive to a third instruction signal formed by a third bit combination within the operation portion of said one feeder cell, a change of polarity arriving on said identified incoming line to one of said outgoing lines, the address of said one outgoing line being read out of the address portion within the assigned feeder cell, accessing said first storage area by means of said program control unit during a processing phase initiated at predetermined time intervals and starting one of said programs in said control unit with each entry found during the processing phase, the contents of the cell within said first storage area containing the entered change of polarity being extinguished, entering command words into a second storage area forming a command block within said storage unit under the control of said program control unit, and accessing said second storage area and reading out of said second storage area said command words by means of said transmission sequence control during a search process initiated in predetermined time intervals, whereby the changes of polarity are transmitted through the exchange system at the proper times.
Claim 3
Dependent Claim
129 words
The method defined in claim 1 wherein said fiRst instruction signal is formed by two bits in said feeder cell, and depending on the content of said first signal, the entry into said first storage area takes the form of one of a single note, a continuous note and a special note, and wherein the entering of the polarity changes occurs in the order of their time of arrival under the control of an address formed in said transmission sequence control from a block starting address and the state of a first binary counter, whereby the address of the incoming line over which the polarity change arrives and a datum about the time of arrival are entered into the cell of said first storage area which receives an entry.
Claim 4
Dependent Claim
56 words
The method defined in claim 2 comprising the further steps of: entering warning marks into the processed area of said first storage area during the processing phase and requesting a premature processing cycle when the cell of said first storage area containing a warning mark is read out under the control of said transmission sequence control.
Claim 5
Dependent Claim
56 words
The method defined in claim 1 wherein said command words entered into said storage unit are one of transmission and alerting commands which are entered in a cell of the second storage unit by said program control means with an address datum, a datum indicating the time of execution of the command and an operation portion.
Claim 6
Dependent Claim
82 words
The process defined in claim 4 wherein said step of accessing said second storage area occurs in predetermined time intervals, said transmission sequence control receiving command words recognized as actual commands through a time comparison during a search process under the control of an address formed in said transmission sequence control from a block starting address and the state of a second binary counter, whereby the contents of the cell which is read out of said second storage area is simultaneously extinguished.
Claim 7
Dependent Claim
87 words
The method defined in claim 5 wherein said second storage area is subdivided into individual sections which are separated from each other by empty cells and comprising the further steps of: entering into said individual sections command words intended for a group of connection lines with the same transmission speed, entering end marks into said empty cells under the control of said control unit after every one of said predetermined time intervals and evaluating said end marks in said transmission control as signals ending said search process.
Claim 8
Dependent Claim
60 words
The method defined in claim 6 comprising the additional steps of: entering jump bits under the control of said control unit into said empty cells after every one of said predetermined time intervals and evaluating in said transmission sequence control said jump bits as signals indicating an alternative search process which skips at least one of said following individual sections.
Claim 9
Dependent Claim
27 words
The method defined in claim 5 wherein after execution of either one of a command or alerting command, an entry into said first storage area takes place.
Claim 10
Dependent Claim
74 words
The method defined in claim 1 wherein in said assigning step the signal for assigning said substitution block is formed by a set substitution bit in said addressed feeder cell, through the evaluation of which in said transmission sequence control the substitution block is assigned, on the basis of an address contained in said addressed feeder cell and wherein the individual cells of said substitution block contain the address of a specific outgoing line.
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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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |