DE566460C - Arrangement for high frequency telephony - Google Patents
Arrangement for high frequency telephonyInfo
- Publication number
- DE566460C DE566460C DET36830D DET0036830D DE566460C DE 566460 C DE566460 C DE 566460C DE T36830 D DET36830 D DE T36830D DE T0036830 D DET0036830 D DE T0036830D DE 566460 C DE566460 C DE 566460C
- Authority
- DE
- Germany
- Prior art keywords
- call
- arrangement
- high frequency
- frequency telephony
- called
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/544—Setting up communications; Call and signalling arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Telephone Function (AREA)
Description
Anordnung zur l-lochfrequenztelephonie In dem Hauptpatent 56q.520 ist eine Anordnung zur selbsttätigen Ruf- und Besetztkontrolle von HF-Telephoniegeräten beschrieben «-orden, bei der das gerufene Gerät zwecks Rückmeldung des Rufes selbsttätig in Betrieb gesetzt wird.Arrangement for high-frequency telephony In the main patent 56q.520 is an arrangement for automatic call and busy control of HF telephony devices described «-order in which the called device for the purpose of acknowledging the call automatically is put into operation.
In der Praxis kann es nun vorkommen, daß die Rufeinrichtung der HF-Geräte durch Störwellen kurzzeitig ausgelöst wird. Mit dieser Möglichkeit muß man insbesondere bei denjenigen Geräten rechnen, die in Elektrizitätswerken zum Sprechverkehr über die Hochspannungsleitungen hinweg Verwendung finden, wenn im Hochspannungsfreileitungsnetz Betriebsumschaltungen vorgenommen werden.In practice it can happen that the call facility of the HF devices is triggered briefly by interfering waves. With this possibility one must in particular count for those devices that are used in power plants for speech communication the high-voltage lines are used when in the high-voltage overhead line network Operational changes are made.
In dem Hauptpatent ist angegeben worden, daß die Rufauslösung am gerufenen Gerät beim Eintreffen der hochfrequenten Rufkennzeichen des Gerätes erfolgt. Bei dieser Anordnung liegt also die Sicherheit gegenüber unbeabsichtigtem Auslösen des Rufes und damit nicht beabsichtigten Inbetriebsetzens des Gerätes im Wahlruf, derart, daß man eine bestimmte Zahl von Stromstößen zum gerufenen HF-Gerät senden muß, um dort den Ruf zur Auslösung zu bringen. In vielen Fällen ist der Wahlruf aber an sich nicht notwendig, z. B. in den Fällen, in denen nur ein Gespräch zwischen zwei Teilnehmern mit Hilfe von Hochfrequenzströmen hergestellt werden soll. In diesem Fall kann man mit dem sogenannten direkten Ruf auskommen. Hier erfolgt z. B. die Rufauslösung beim Eintreffen des Trägerstromes vom rufenden Gerät beim gerufenen Gerät.In the main patent has been specified that the call release on the called Device when the high-frequency call identifier of the device arrives. at This arrangement is therefore the security against unintentional triggering of the Call and thus unintended activation of the device in the dial call, in such a way, that you have to send a certain number of power surges to the called HF device in order to to trigger the call there. In many cases, however, the dialing call is on not necessary, e.g. B. in cases where there is only one conversation between two Participants should be produced with the help of high-frequency currents. In this Case one can get by with the so-called direct call. Here z. B. the Call triggering when the carrier current from the calling device arrives at the called one Device.
Dieses kann dadurch geschehen, daß der Rufempfänger die Kontakte, die die Inbetriebsetzung des gerufenen Senders bzw. die Auslösung des Rufes an der zugehörigen Teilnehmerstelle bewirkt, nicht direkt, sondern über eine geeignete, an sich bekannte Verzögerungsvorrichtung betätigt.This can be done by the fact that the call recipient has the contacts, the commissioning of the called transmitter or the triggering of the call on the associated subscriber station, not directly, but via a suitable, actuated delay device known per se.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET36830D DE566460C (en) | 1927-10-18 | 1929-05-01 | Arrangement for high frequency telephony |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET34117D DE564520C (en) | 1927-10-18 | 1927-10-18 | Call circuit for high frequency telephony |
| DET36830D DE566460C (en) | 1927-10-18 | 1929-05-01 | Arrangement for high frequency telephony |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE566460C true DE566460C (en) | 1932-12-16 |
Family
ID=26000343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DET36830D Expired DE566460C (en) | 1927-10-18 | 1929-05-01 | Arrangement for high frequency telephony |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE566460C (en) |
-
1929
- 1929-05-01 DE DET36830D patent/DE566460C/en not_active Expired
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