DE468818C - Device for wireless message transmission, in particular for wireless telephony - Google Patents

Device for wireless message transmission, in particular for wireless telephony

Info

Publication number
DE468818C
DE468818C DEL55466D DEL0055466D DE468818C DE 468818 C DE468818 C DE 468818C DE L55466 D DEL55466 D DE L55466D DE L0055466 D DEL0055466 D DE L0055466D DE 468818 C DE468818 C DE 468818C
Authority
DE
Germany
Prior art keywords
grid
tube
wireless
main
circle
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
DEL55466D
Other languages
German (de)
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
Publication date
Priority to DEL55466D priority Critical patent/DE468818C/en
Application granted granted Critical
Publication of DE468818C publication Critical patent/DE468818C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/16—Amplitude modulation by means of discharge device having at least three electrodes
    • H03C1/18—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid
    • H03C1/22—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid modulating signal applied to same grid

Landscapes

  • Mobile Radio Communication Systems (AREA)

Description

Gegenstand der vorliegenden Erfindung ist eine Einrichtung zur drahtlosen Nachrichtenübermittlung,, insbesondere zur drahtlosen Telephonie.The subject of the present invention is a device for wireless communication, especially for wireless telephony.

Es hat sich, gezeigt, daß eine äußerst wirksame Sprachbeeinflussung mit eimer Anordnung möglich ist, bei welcher in Serie mit dem Gitterkreis' einer Senderöhre eine Vakuumröhre mit Gitter liegt, denen Gitter ihrer seits durch die Sprachschwingungen gesteuert wird.It has been shown that an extremely effective speech influencing with a bucket arrangement is possible in which a vacuum tube in series with the grid circle 'of a transmitter tube with lattice, which lattice in turn is controlled by the vibrations of speech will.

Insbesondere für Telephoniestationiein großer Leistung ist eine genau proportionale Beeinflussung der Senderleistung dadurch möglieh, daß man dem Gitter dieser zweiten im Gitterkreis der ersten Senderöhre liegenden Hilfsröhre die Sprachschwingungen überlagert. Especially for telephone stations a large one Power it is possible to influence the transmitter power in a precisely proportional way, that the grid of this second lying in the grid circle of the first transmitter tube Auxiliary tube superimposed on the speech vibrations.

Ein Ausführungsbeispiel ist in der Abbiiao dung gezeichnet.An embodiment is shown in the illustration.

In Serie mit dem Gitter, d.h. zwischen dem Gitterkreis und dem Gitter der Hauptsenderöhre, liegt die Vakuumröhre 13, deren Gitter etwa durch die Siekundärwicklung 16 a5 eines nichtgezeichneten, primärseits mikrophonisich besprochenen Transformators Spannung zugeführt erhält. Dabei'ist die Kathode 17 mit dem Gitterkreis 12 und die Anode der Hilfsröhre mit dem Gitter der Hauptröhre verbunden. Die Schwingungserzeugung kann im übrigen mit Hufe der Batterie 10 und Parallelkondensator 11 erfolgen, wobei der Gitterkreis 12 entweder selbst auf die Antenne abgestimmt ist oder in rückkopplungsfreier Schaltung Schwingungen erzeugt oder in an sich bekannter Weise durch eine fremderzeugte Hochfrequenzenergie gesteuert wird. Natürlich kann das Prinzip dieser Einschaltung einer Kathodenröhre zur Beeinflussung hochfrequenter Schwingungen unmittelbar zwisehen dem Gitter und Gitterkreis einer Senderöhre in jeder beliebigen und bekannten Schwingungserzeugungsschaltung verwendet werden.In series with the grid, i.e. between the grid circle and the grid of the main transmitter tube, The vacuum tube 13 is located, the grid of which is approximately through the secondary winding 16 a5 of an undrawn, primarily microphonic the transformer discussed is supplied with voltage. This is the cathode 17 with the grid circle 12 and the anode of the Auxiliary tube connected to the grid of the main tube. The vibration generation can otherwise with hooves of battery 10 and parallel capacitor 11 take place, with the grid circle 12 either itself on the antenna is tuned or generates vibrations in a feedback-free circuit or in on is controlled in a known manner by an externally generated high-frequency energy. Naturally can use the principle of switching on a cathode tube to influence high frequencies Vibrations directly between the grid and grid circle of a transmitter tube can be used in any known oscillation generating circuit.

Claims (2)

. Patentansprüche:. Patent claims: 1. Einrichtung zur drahtlosen Nachrichtenübermittlung, insbesondere zur drahtlosen Telephonie, dadurch gekennzeichnet, daß unmittelbar in Serie mit dem Gitter, d.h. zwischen Gitterkreis und Gitter der Hauptsenderöhre, 'eine Hilfsröhre, deren Gitter die Sprechströme zugeführt werden, derart eingeschaltet ist, daß, die hochfrequenten Gitterströme der Hauptsenderöhre auch über die Anodenkathodenstreeke der Hüfsröhren fließen.1. device for wireless communication, in particular for wireless telephony, characterized in that directly in series with the Grid, i.e. between the grid circle and the grid of the main transmitter tube, 'an auxiliary tube, whose grid the speech streams are supplied is switched on in such a way that the high-frequency grid currents from the main transmitter tube also via the anode cathode line of the caudal tubes flow. 2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die !unmittelbar in Serie mit dem Gitterkreis der Hauptröhre liegenden Hüfsröhren über einen auf die Sendefrequenz abgestimmten Schwingungskreis (12) zwischen Gitter und Kathode der Hauptröhre geschaltet ist.2. Arrangement according to claim 1, characterized in that the! Directly auxiliary tubes in series with the grid circle of the main tube via an oscillation circuit tuned to the transmission frequency (12) is connected between the grid and the cathode of the main tube.
DEL55466D Device for wireless message transmission, in particular for wireless telephony Expired DE468818C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL55466D DE468818C (en) Device for wireless message transmission, in particular for wireless telephony

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL55466D DE468818C (en) Device for wireless message transmission, in particular for wireless telephony

Publications (1)

Publication Number Publication Date
DE468818C true DE468818C (en) 1928-11-22

Family

ID=7276981

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL55466D Expired DE468818C (en) Device for wireless message transmission, in particular for wireless telephony

Country Status (1)

Country Link
DE (1) DE468818C (en)

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