AT377401B - METHOD FOR APPLICATION WHEN CIRCUITING SINGLE OR MULTIPLE LAYING LANGUAGE CHANNELS IN CARRIER FREQUENCY SYSTEMS - Google Patents

METHOD FOR APPLICATION WHEN CIRCUITING SINGLE OR MULTIPLE LAYING LANGUAGE CHANNELS IN CARRIER FREQUENCY SYSTEMS

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Publication number
AT377401B
AT377401B AT617978A AT617978A AT377401B AT 377401 B AT377401 B AT 377401B AT 617978 A AT617978 A AT 617978A AT 617978 A AT617978 A AT 617978A AT 377401 B AT377401 B AT 377401B
Authority
AT
Austria
Prior art keywords
carrier frequency
circuiting
application
frequency systems
multiple laying
Prior art date
Application number
AT617978A
Other languages
German (de)
Other versions
ATA617978A (en
Original Assignee
Ant Nachrichtentech
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
Priority claimed from DE19742449808 external-priority patent/DE2449808C3/en
Priority claimed from AT792375A external-priority patent/AT354522B/en
Application filed by Ant Nachrichtentech filed Critical Ant Nachrichtentech
Priority claimed from AT0006179A external-priority patent/AT369360B/en
Publication of ATA617978A publication Critical patent/ATA617978A/en
Application granted granted Critical
Publication of AT377401B publication Critical patent/AT377401B/en

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Description

  

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   Selbstverständlich beschränkt sich das Verfahren nach der Erfindung nicht auf die Durchschaltung von drei Sprachkanälen. Es ist auch jede andere Zahl von Kanälen denkbar. 



    PATENTANSPRÜCHE :    
1. Verfahren zur Anwendung beim Durchschalten einzelner oder mehrerer nebeneinander liegender Sprachkanäle zwischen einem Trägerfrequenzsystem erster Art, bei dem eine Grundprimärgruppe nach dem Vormodulationsprinzip gewonnen wird und einem System zweiter Art, bei dem eine Grundprimärgruppe nach dem Vorgruppenmodulationsprinzip gewonnen wird, dadurch gekennzeichnet, dass die Grundprimärgruppe des Vormodulationssystems erster Art (GP1) mit einer der Kanalträgerfrequenzen dieses Systems   (KT1''')   so umgesetzt wird, dass die durchzuschaltende Kanalgruppe in die Frequenzlage eines Durchschaltefilters (D) zu liegen kommt, dessen Bandbreite der der Kanalgruppe entspricht und dass das durch das Durchschaltefilter (D) ausgesiebte Frequenzband,

   welches vorzugsweise auch den Frequenzbereich des   Vormodulationskanals   mit einschliesst, in an sich bekannter Weise durch eine Hilfsträgerfrequenz (HT) in ein Frequenzteilband der Vorgruppe (VG) des Modulationssystems zweiter Art umgesetzt und durch eine Vorgruppenträgerfrequenz (VGT) in das entsprechende Frequenzteilband der Grundprimärgruppe   (GP2'")   des Systems zweiter Art umgesetzt wird bzw. in umgekehrtem Sinne.



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   Of course, the method according to the invention is not limited to the switching through of three voice channels. Any other number of channels is also conceivable.



    PATENT CLAIMS:
1.Procedure for use when switching through one or more adjacent voice channels between a carrier frequency system of the first type, in which a basic primary group is obtained according to the pre-modulation principle and a system of the second type, in which a basic primary group is obtained according to the pre-group modulation principle, characterized in that the basic primary group of the pre-modulation system of the first type (GP1) with one of the channel carrier frequencies of this system (KT1 '' ') is implemented in such a way that the channel group to be switched comes to lie in the frequency position of a switch-through filter (D), the bandwidth of which corresponds to that of the channel group and that this is achieved by the Pass-through filter (D) screened frequency band,

   which preferably also includes the frequency range of the pre-modulation channel, implemented in a manner known per se by a subcarrier frequency (HT) into a frequency subband of the pre-group (VG) of the modulation system of the second type and by a pre-group carrier frequency (VGT) in the corresponding frequency subband of the basic primary group (GP2 ' ") of the system of the second type is implemented or vice versa.

Claims (1)

2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Hilfsträgerfrequenz (HT) in an sich bekannter Weise aus einer der vorhandenen Trägerfrequenzen abgeleitet wird.  2. The method according to claim 1, characterized in that the auxiliary carrier frequency (HT) is derived in a manner known per se from one of the available carrier frequencies.
AT617978A 1974-10-19 1978-08-24 METHOD FOR APPLICATION WHEN CIRCUITING SINGLE OR MULTIPLE LAYING LANGUAGE CHANNELS IN CARRIER FREQUENCY SYSTEMS AT377401B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19742449808 DE2449808C3 (en) 1974-10-19 Method for switching channels or channel bundles in carrier frequency systems
AT792375A AT354522B (en) 1974-10-19 1975-10-17 PROCEDURE FOR SWITCHING SINGLE OR SEVERAL VOCAL CHANNELS THROUGH EACH OTHER
AT0006179A AT369360B (en) 1978-01-04 1979-01-04 METHOD FOR PRODUCING THE MONOESTER OF 2 (P-CHLORPHENOXY) ISOBUTTERIC ACID WITH 2,6-PYRIDINE DIMETHANOL AND ITS SALTS

Publications (2)

Publication Number Publication Date
ATA617978A ATA617978A (en) 1984-07-15
AT377401B true AT377401B (en) 1985-03-25

Family

ID=27145796

Family Applications (1)

Application Number Title Priority Date Filing Date
AT617978A AT377401B (en) 1974-10-19 1978-08-24 METHOD FOR APPLICATION WHEN CIRCUITING SINGLE OR MULTIPLE LAYING LANGUAGE CHANNELS IN CARRIER FREQUENCY SYSTEMS

Country Status (1)

Country Link
AT (1) AT377401B (en)

Also Published As

Publication number Publication date
ATA617978A (en) 1984-07-15

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