US3717723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for the selection and interrogation of connections in dial exchange data systems with central programable control
Assignee: Siemens AG
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Filing: 1970-09-14
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Granted: 1973-02-20
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Expires: 1990-09-14
Abstract
Abstract A process and apparatus are described for the exchange of pulse coded messages between connections in line connection units in dial exchange data systems having programable, central control means, wherein connections are established between incoming and outgoing connections according to the principle of request and proceed to send. The connections are made utilizing data and programs contained in a central storage means. Input code transducers are provided for identifying incoming connections, e.g. from transmitters, and output code transducers are provided for identifying and addressing outgoing connections, e.g. to receivers. The selection of incoming connections, i.e. those transmitting requests, for example polarity changes, takes place using binary address information and said selection is determined by an input code transducer in the known manner. The same principle is used for addressing a storage cell in the central store assigned to the incoming connection and selecting the outgoing connection using an output code transducer. Simultaneously with the foregoing selection process, further operation modes, for example polarity interrogation, setting back, transmitting and re-poling, can be carried out through a logical connection of the address information over the appropriate connection by means of a signal indicating the desired one of said modes of operation.
Inventors
- 👤 G Jaskulke
- 👤 F Giebler
- 👤 H Steigenberger
- 👤 M Mayer
- 👤 B Lampe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:12
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/42; H04Q3/54; H04Q3/545; H04L; H04L12/00; H04L12/50; H04L12/52
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
189 words
A process for the exchange of pulse coded messages between connections within line connection units in dial exchange data systems having programmable, central control means, wherein connections are established between incoming and outgoing connections according to the principle of request and proceed to send, and utilizing data and programs contained in a central storage means, and wherein the identification of incoming Connections takes place in an input code transducer and the identification of outgoing connections takes place in an output code transducer, comprising the steps of: identification, by said input code transducer, of an incoming connection transmitting a request, said input code transducer utilizing binary address information for performing said identification, transmission of said request to a predetermined portion of said central storage means, said portion being determined by said address information, addressing an outgoing connection utilizing information previously stored in said central storage means by means of said output code transducer, and completing, by a logical connection step, an appropriate connection as determined by the address information to provide a desired one of a plurality of predetermined modes of operation simultaneously with the occurrence of the steps hereinabove.
Claim 2
Dependent Claim
189 words
A process for the exchange of pulse coded messages between connections within line connection units in dial exchange data systems having programmable, central control means, wherein connections are established between incoming and outgoing connections according to the principle of request and proceed to send, and utilizing data and programs contained in a central storage means, and wherein the identification of incoming Connections takes place in an input code transducer and the identification of outgoing connections takes place in an output code transducer, comprising the steps of: identification, by said input code transducer, of an incoming connection transmitting a request, said input code transducer utilizing binary address information for performing said identification, transmission of said request to a predetermined portion of said central storage means, said portion being determined by said address information, addressing an outgoing connection utilizing information previously stored in said central storage means by means of said output code transducer, and completing, by a logical connection step, an appropriate connection as determined by the address information to provide a desired one of a plurality of predetermined modes of operation simultaneously with the occurrence of the steps hereinabove.
Claim 3
Dependent Claim
189 words
A process for the exchange of pulse coded messages between connections within line connection units in dial exchange data systems having programmable, central control means, wherein connections are established between incoming and outgoing connections according to the principle of request and proceed to send, and utilizing data and programs contained in a central storage means, and wherein the identification of incoming Connections takes place in an input code transducer and the identification of outgoing connections takes place in an output code transducer, comprising the steps of: identification, by said input code transducer, of an incoming connection transmitting a request, said input code transducer utilizing binary address information for performing said identification, transmission of said request to a predetermined portion of said central storage means, said portion being determined by said address information, addressing an outgoing connection utilizing information previously stored in said central storage means by means of said output code transducer, and completing, by a logical connection step, an appropriate connection as determined by the address information to provide a desired one of a plurality of predetermined modes of operation simultaneously with the occurrence of the steps hereinabove.
Claim 4
Dependent Claim
189 words
A process for the exchange of pulse coded messages between connections within line connection units in dial exchange data systems having programmable, central control means, wherein connections are established between incoming and outgoing connections according to the principle of request and proceed to send, and utilizing data and programs contained in a central storage means, and wherein the identification of incoming Connections takes place in an input code transducer and the identification of outgoing connections takes place in an output code transducer, comprising the steps of: identification, by said input code transducer, of an incoming connection transmitting a request, said input code transducer utilizing binary address information for performing said identification, transmission of said request to a predetermined portion of said central storage means, said portion being determined by said address information, addressing an outgoing connection utilizing information previously stored in said central storage means by means of said output code transducer, and completing, by a logical connection step, an appropriate connection as determined by the address information to provide a desired one of a plurality of predetermined modes of operation simultaneously with the occurrence of the steps hereinabove.
Claim 5
Dependent Claim
23 words
The process defined in claim 1, wherein said logical connection step is carried out using a complete decoded address of a system connection.
Claim 6
Dependent Claim
38 words
The process defined in claim 1, wherein said logical connection step is carried out using only a part of the address of a system connection, the remainder of said address information being used for identification of a connection.
Claim 7
Dependent Claim
102 words
The process defined in claim 1, comprising the additional steps of: generating internally a blocking signal for blocking all system connections from forwarding incoming connections, evaluating in said output code transducer the address of a system connection, interrogating the polarity condition of said output code transducer and, using the result of said interrogation for the transmission of a signal indicating the setting back operation mode over the system connection with said address and thereby causing in the system connection the appearance of an artificially generated request, while said blocking for the system connection, the address of which has been evaluated, is cancelled.
Claim 8
Dependent Claim
164 words
Apparatus for the exchange of pulse coded messages between connections within line connection units in dial exchange data systems having programmable, central control means, wherein connections are established between incoming and outgoing connections according to the principle of request and proceed to send, and utilizing data and programs contained in a central storage means and having an input code transducer for identifying incoming connections and an output code transducer for identifying outgoing connections, comprising: means in said input code transducer for identifying an incoming connection transmitting a request by means of binary address information, means in said output code transducer for addressing an outgoing connection using information previously stored in said central storage means, a plurality of means for generating a plurality of operating modes and logical connection means for connecting according to the address information the corresponding system connection to provide a desired one of said plurality of operating modes simultaneously with the operations of the input and output code transducers described hereinabove.
Claim 9
Dependent Claim
164 words
Apparatus for the exchange of pulse coded messages between connections within line connection units in dial exchange data systems having programmable, central control means, wherein connections are established between incoming and outgoing connections according to the principle of request and proceed to send, and utilizing data and programs contained in a central storage means and having an input code transducer for identifying incoming connections and an output code transducer for identifying outgoing connections, comprising: means in said input code transducer for identifying an incoming connection transmitting a request by means of binary address information, means in said output code transducer for addressing an outgoing connection using information previously stored in said central storage means, a plurality of means for generating a plurality of operating modes and logical connection means for connecting according to the address information the corresponding system connection to provide a desired one of said plurality of operating modes simultaneously with the operations of the input and output code transducers described hereinabove.
Claim 10
Dependent Claim
146 words
The apparatus defined in claim 5 wherein said output code transducer includes a decoding circuit means for decoding the binary address of a connection received from said central storage means, an operational control system and a plurality of mixer circuits, the number of which corresponds to the code selected for the connections used, said apparatus further comprising: a plurality of system connection groups into which said system connections assigned to each connection are combined, said system connection groups each having a plurality of operation mode inputs to said operation control system, and a plurality of identification inputs for each of said system connections connected to a mixer circuit for evaluating a portion of said binary address information, a coincidence being formed among a selected type Of operation mode and an address part common to the system connection to be selected and interrogated and said identification inputs.
Claim 11
Dependent Claim
57 words
The apparatus defined in claim 6, wherein one of said operation mode inputs is adapted to carry out a polarity interrogation operation, said one input being reached only by said operational control system through the address portion supplied by said output code transducer, another of said inputs to said operation modes being addressable in a time-dependent manner.
Claim 12
Dependent Claim
48 words
The apparatus defined in claim 6, wherein: each of said system connections includes an evaluation circuit means for the evaluation of polarity changes appearing at the inputs thereto, and a plurality of gates per operation mode which are addressable over an operation mode input and said identification inputs.
Claim 13
Dependent Claim
45 words
The apparatus defined in claim 8, wherein said evaluation circuit means and a request flip flop stage form a comparison circuit for generating an output impulse only when said comparison circuit senses a logic level deviating from the level of said request flip flop stage.
Claim 14
Dependent Claim
63 words
The apparatus defined in claim 9, wherein said plurality of said operation modes includes a setting back operation mode, said setting back mode being generated as a result of the interrogated polarity in such a way that the request is cancelled only when said signal for carrying out said setting back mode corresponds to the polarity at the input of said evaluation circuit.
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) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |