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DE850905C - Arrangement for the simplified multiple utilization of line channels by means of audio frequencies - Google Patents

Arrangement for the simplified multiple utilization of line channels by means of audio frequencies

Info

Publication number
DE850905C
DE850905C DEO1537A DEO0001537A DE850905C DE 850905 C DE850905 C DE 850905C DE O1537 A DEO1537 A DE O1537A DE O0001537 A DEO0001537 A DE O0001537A DE 850905 C DE850905 C DE 850905C
Authority
DE
Germany
Prior art keywords
frequencies
arrangement
characters
line channels
receiving point
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEO1537A
Other languages
German (de)
Inventor
Paul Dipl-Ing Oberfichtner
Benno Dipl-Ing Penzkofer
Max Dr-Ing Pichlmaier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DEO1537A priority Critical patent/DE850905C/en
Application granted granted Critical
Publication of DE850905C publication Critical patent/DE850905C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J1/00Frequency-division multiplex systems
    • H04J1/02Details
    • H04J1/14Arrangements providing for calling or supervisory signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/02Channels characterised by the type of signal
    • H04L5/06Channels characterised by the type of signal the signals being represented by different frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Description

Es sind bislang Verfahren bekannt, die es gestatten, bei der Fernübertragung von Stromstößen nach dem Impulshäufigkeitsverfahren Leitungskanäle unter Anwendung von Tonfrequenzen mehrfach auszunützen. Dabei wird jedem Geber eine bestimmte Frequenz zugeordnet. Diese wird in Abhängigkeit von der Zeichenfolge getastet, wobei zwischen Zeichenfolge und Tastfrequenz direkte Abhängigkeit besteht. Die Tonfrequenzimpulse sämtlicher Geber werden auf den zur Fernübertragung benützten Leitungskanal gegeben und auf der Empfangsseite mit Hilfe von abgestimmten Siebketten oder Frequenzrelais wieder auseinandergetrennt und den eigentlichen Empfängern zugeführt. Diesen Empfängern obliegt es dann, die Impulsfrequenz gegebenenfalls im Anzeigewert umzuformen, die mit den Impulsfolgender Sendestelle übereinstimmen.There are previously known methods that allow remote transmission of power surges according to the pulse frequency method using conduits multiple use of audio frequencies. Each encoder is given a specific frequency assigned. This is keyed depending on the character string, with between There is a direct dependency on the character sequence and the sampling frequency. The audio frequency pulses all encoders are sent to the line channel used for remote transmission and on the receiving side with the help of matched filter chains or frequency relays separated again and fed to the actual recipients. These recipients It is then incumbent upon to convert the pulse frequency into the display value if necessary match the pulse trains of the transmitting station.

Dieses Verfahren benötigt für jeden Geber einen besonderen Tonfrequenzgenerator, der am Ort des jeweiligen Gebers stehen muß. Dies wirkt sich besonders dann ungünstig aus, wenn beispielsweise von einem Ort nur einmal Zeichen, die anderen Zeichen aber von anderen Stellen übertragen werden sollen. Die Industrie stellt Tonfrequenzgeneratoren in Einheiten von 6, 12, 18 verschiedenen Frequenzen her. In solchen Fällen aber, wie oben geschildert, können also nicht alle Frequenzen ausgenützt werden. In diesem Fall bleibt nur der äußerst kostspielige und einen großen Aufwand erfordernde Weg, jeden Geber mit einem eigenen Röhrengenerator auszustatten.This procedure requires a special tone frequency generator for each transmitter, which must be at the location of the respective donor. This has a particularly unfavorable effect off, if, for example, only one character from a location, but the other characters should be transferred from other bodies. The industry makes tone frequency generators in units of 6, 12, 18 different frequencies. In such cases, however, As described above, not all frequencies can be used. In this Case, there is only the extremely costly and laborious way to to equip each transmitter with its own tube generator.

Der geschilderte Nachteil wird durch die neue Schaltung vermieden und soll an Hand der Abbildung näher erläutert werden.The described disadvantage is avoided by the new circuit and should be explained in more detail using the illustration.

Der Tonfrequenzgenerator, der f" Frequenzen erzeugen möge, wird an der Empfangsstelle aufgestellt. Seine sämtlichen Frequenzen werden über abgestimmte Kreise parallel geschaltet. Das sich ergebende Gemisch aller Frequenzen wird über einen Leitungskanal an sämtliche Stationen gegeben, von welchen aus die Zeichen an die Empfangsstelle gegeben werden sollen. In den einzelnen Geberstationen werden durch abgestimmte Filter Fi so viele Frequenzen, als Meßstellen in einer Gruppe vonAnpassungswi.derständenvorhandeti sind,inAl>-hängigkeit von der zu übertragenden Zeichenfolge getastet. Die getasteten Frequenzen werden wieder einem gemeinsamen Leitungskanal zugeleitet und zur Empfangsstelle zurückgeführt. Dort wird das Frequenzgemisch durch abgestimmte Filter Fi wieder auseinandergetrennt. Den Empfängern E mit ihren Anzeigevorrichtungen I wird jeweils eine der getrennten Frequenzen zugeführt.The audio frequency generator, which is supposed to generate f "frequencies, is switched on set up by the receiving office. All of its frequencies are tuned over Circuits connected in parallel. The resulting mixture of all frequencies is over given a conduit to all stations from which the characters should be given to the receiving office. In the individual donor stations through matched filters Fi as many frequencies as there are measuring points in a group of adaptation resistances are available, depending on the Keyed string. The sampled frequencies become common again Line channel fed and returned to the receiving point. There is the frequency mix separated again by matched filters Fi. The recipients E with their Display devices I are each fed to one of the separate frequencies.

Diese Anordnung kann so oft parallel geschaltet werden, als es die Leistungsfähigkeit der Tonfrequenzgeneratoren erlaubt.This arrangement can be connected in parallel as often as the Performance of the audio frequency generators allowed.

Hier zeigt sich auch der weitere Vorteil dieser Schaltung. In den einzelnen Geberstationen, aus denen die Zeichen übertragen werden, sind keinerlei Hilfsspannungen nötig. Alle Teile, die Hilfsspannungen und eine evtl. Wartung erfordern, sind an einer Zentralstelle zusammengefaßt.This is where the further advantage of this circuit becomes apparent. In the individual donor stations from which the characters are transmitted are not Auxiliary voltages required. All parts that require auxiliary voltages and any maintenance, are combined at a central point.

Claims (4)

PATENTANSPRÜCHE: i. Anordnung ?ur vereinfachten Mehrfachausnützumg von Leitungsikanälen mittels Tonfrequenzen, dadurch gekennzeichnet, daß die Tonfrequenzgeneratoren an der Empfangsstelle aufgestellt sind. Der verwendete Leitungskanal kann dabei aus einem Adernpaar, einem HF-oder auch UKW-Träger bestehen. PATENT CLAIMS: i. Arrangement for simplified multiple use of line channels by means of audio frequencies, characterized in that the audio frequency generators are set up at the receiving point. The line channel used can consist of a pair of wires, an HF or VHF carrier. 2. Schaltung nach Anspruch i, dadurch gekennzeichnet, daß die von den Tonfrequenzgeneratoren gelieferten Frequenzen auf einem Leitungskanal zusammengeführt werden und als Gemisch den Stationen, von denen aus Zeichen nach der Empfangsstelle übertragen werden sollen, zugeführt wird. 2. Circuit according to claim i, characterized in that the frequencies supplied by the audio frequency generators are brought together on a conduit and as a mixture the stations of to which characters are to be transmitted after the receiving point. 3. Schaltung nach Anspruch i und 2, dadurch gekennzeichnet, daß in der Station, von der aus Zeichen übertragen werden sollen, so viele Frequenzen mittels abgestimmter Filter ausgeschieden werden, als Geber vorhanden sind, daß diese Frequenzen mit den Zeichen moduliert und dann wieder zusammengeführt werden. 3. Circuit according to claim i and 2, characterized in that in the station, from which characters are to be transmitted, as many frequencies by means of matched Filters are eliminated as encoders are present that use these frequencies the characters are modulated and then merged again. 4. Anordnung nach Anspruch i bis 3, dadurch gekennzeichnet, daß das modulierte Frequenzgemisch an der Empfangsstelle durch abgestimmte Filter erneut getrennt und jede einzelne Frequenz einem Empfänger zugeführt wird.4. Arrangement according to Claims i to 3, characterized in that the modulated frequency mixture is on the receiving point again separated by matched filters and each individual frequency is fed to a receiver.
DEO1537A 1951-04-12 1951-04-12 Arrangement for the simplified multiple utilization of line channels by means of audio frequencies Expired DE850905C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEO1537A DE850905C (en) 1951-04-12 1951-04-12 Arrangement for the simplified multiple utilization of line channels by means of audio frequencies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEO1537A DE850905C (en) 1951-04-12 1951-04-12 Arrangement for the simplified multiple utilization of line channels by means of audio frequencies

Publications (1)

Publication Number Publication Date
DE850905C true DE850905C (en) 1952-09-29

Family

ID=7349600

Family Applications (1)

Application Number Title Priority Date Filing Date
DEO1537A Expired DE850905C (en) 1951-04-12 1951-04-12 Arrangement for the simplified multiple utilization of line channels by means of audio frequencies

Country Status (1)

Country Link
DE (1) DE850905C (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1044680B (en) * 1957-11-02 1958-11-20 Metrawatt Ag Method for the simultaneous remote transmission of several measured values via one channel, whereby the measured values are represented as frequencies
DE1077846B (en) * 1958-04-17 1960-03-17 Standard Elektrik Lorenz Ag Circuit arrangement for signaling from the moving conveyor basket
DE1158547B (en) * 1962-01-23 1963-12-05 A Stankiewicz G M B H Chemisch Arrangement to improve the audibility of acoustic signals
DE1159820B (en) * 1954-02-26 1963-12-19 Bendix Corp Device for remote transmission of coded signals with a single transmission channel
DE1217057B (en) * 1961-08-12 1966-05-18 Continental Gummi Werke Ag Process for reworking defects on air suspension bellows or similar hollow bodies made of natural or synthetic rubber with reinforcement inserts
DE1256711B (en) * 1962-05-30 1967-12-21 Nippon Electric Co Remote control and monitoring system for a communication network
DE1296551B (en) * 1964-04-29 1969-05-29 Siemens Ag Order to identify the location of reporting points
DE2713918A1 (en) * 1977-03-29 1978-10-05 Siemens Ag Frequency multiplexed signal transmission - allows high channel density by relating all signal frequencies to base reference frequency

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1159820B (en) * 1954-02-26 1963-12-19 Bendix Corp Device for remote transmission of coded signals with a single transmission channel
DE1044680B (en) * 1957-11-02 1958-11-20 Metrawatt Ag Method for the simultaneous remote transmission of several measured values via one channel, whereby the measured values are represented as frequencies
DE1077846B (en) * 1958-04-17 1960-03-17 Standard Elektrik Lorenz Ag Circuit arrangement for signaling from the moving conveyor basket
DE1217057B (en) * 1961-08-12 1966-05-18 Continental Gummi Werke Ag Process for reworking defects on air suspension bellows or similar hollow bodies made of natural or synthetic rubber with reinforcement inserts
DE1158547B (en) * 1962-01-23 1963-12-05 A Stankiewicz G M B H Chemisch Arrangement to improve the audibility of acoustic signals
DE1256711B (en) * 1962-05-30 1967-12-21 Nippon Electric Co Remote control and monitoring system for a communication network
DE1296551B (en) * 1964-04-29 1969-05-29 Siemens Ag Order to identify the location of reporting points
DE2713918A1 (en) * 1977-03-29 1978-10-05 Siemens Ag Frequency multiplexed signal transmission - allows high channel density by relating all signal frequencies to base reference frequency

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