DE524999C - Circuit arrangement for message transmission - Google Patents
Circuit arrangement for message transmissionInfo
- Publication number
- DE524999C DE524999C DEM109506D DEM0109506D DE524999C DE 524999 C DE524999 C DE 524999C DE M109506 D DEM109506 D DE M109506D DE M0109506 D DEM0109506 D DE M0109506D DE 524999 C DE524999 C DE 524999C
- Authority
- DE
- Germany
- Prior art keywords
- remote printer
- arrangement according
- radio receiver
- transmission
- radio
- 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
- 230000005540 biological transmission Effects 0.000 title claims description 5
- 238000004804 winding Methods 0.000 claims description 2
- 230000004913 activation Effects 0.000 description 1
- 230000005021 gait Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Description
Es sind Ferndrucker bekannt, mittels welcher zwischen zwei z. B. durch ein Fernsprechkabel verbundenen Stellen ein telegraphischer Verkehr durchgeführt werden kann. Zweck der Erfindung ist es, derartige Apparate auch dafür geeignet zu machen, automatisch drahtlos gegebene Nachrichten (Wirtschaftsrundfunk u.dgl.) zu empfangen.There are remote printers known by means of which between two z. B. A telegraphic bodies connected by a telephone cable Traffic can be carried out. The purpose of the invention is to provide such apparatus as well to make it suitable, automatically given wireless news (Wirtschaftsrundfunk etc.) to receive.
Das Wesen der Erfindung ist in der Abbildung schematigch dargestellt. Der Ferndrucker F (mit vorgeschaltetem Niederfrequenzverstärker NFV) ist an einen Umschalter U geführt, durch den er (bzw. das den Apparat selbst einschaltende Relais) z.B. von Hand an die FernsprechleitungL, z.B. parallel zum Fernsprecher FSpf, angeschaltet werden kann.The essence of the invention is shown schematigch in the figure. The remote printer F (with an upstream low-frequency amplifier NFV) is led to a switch U , through which it (or the relay that switches on the device itself) can be connected manually to the telephone line L, e.g. parallel to the telephone FSpf.
Zum Empfang drahtloser Nachrichten, dieTo receive wireless messages that
zu täglich wiederkehrenden Stunden gesendet werden, ist folgende Einrichtung getroffen:are sent at daily recurring hours, the following setup is in place:
Eine Schaltuhr ScA (gegebenenfalls mit Selbstaufzug und drahtlos betätigter Zeigerstellvorrichtung) beeinflußt zu bestimmten Stunden ein Relais R, !welches die Ferndrucker- und Verstärkerapparatur auf Empfang schaltet und an einen Hochfrequenzgleichrichter HFG (z. B. Audion') mit auf die Trägerfrequenz der drahtlosen Nachrichten abgestimmtem Empfangskreise anschaltet und eine gegebenenfalls zufällig gleichzeitig bestehende Verbindung mit der Fernsprechleitung L trennt; als Energiequelle für R dient das Starkstromnetz N. Das Relais/? erhält eine zweite Spule, welche von den Strömen des Ferndruckers durchflossen wird und derart bewirkt, daß die Umschaltung der Apparatur erst nach Beendigung der drahtlosen Sendung auftritt.A timer ScA (if necessary with self-winding and wirelessly operated pointer setting device) influences a relay R at certain hours, which switches the remote printer and amplifier equipment to receive and to a high-frequency rectifier HFG (e.g. Audion ') with the carrier frequency of the wireless messages tuned receiving circuits turns on and a possibly coincidentally existing connection with the telephone line L disconnects; the power network N serves as the energy source for R. The relay /? receives a second coil which is traversed by the currents of the remote printer and has such a effect that the switching of the apparatus occurs only after the wireless transmission has ended.
Wenn erreicht werden soll, daß die Abschaltung der Apparatur von der Leitung möglichst kurz sein soll, dann wird die An-Ordnung in weiterem Ausbau des Erfindungsgedankens folgendermaßen getroffen:If it is to be achieved that the equipment is disconnected from the line should be as short as possible, then the an-order in further expansion of the inventive concept taken as follows:
Die Schaltuhr bewirkt nebst der Inbetriebsetzung des Hochfrequenzgleichrichters und des Verstärkers (falls nicht eben über die Fernsprechleitung telegraphiert werden sollte, so daß der Verstärker bereits in Betrieb wäre) die Anschaltung eines Umschalterelais, welches selbst, sobald und solange drahtlose Signalströme eintreffen, den Ferndrucker samt Verstärker von der Leitung abschaltet und an den Hochfrequenzgleichrichter anschaltet.In addition to starting the high-frequency rectifier and the amplifier (if telegraphing is not being carried out over the telephone line, so that the amplifier would already be in operation) the connection of a switch relay, which even as soon as and for as long as wireless signal streams arrive, including the remote printer Disconnects the amplifier from the line and connects it to the high-frequency rectifier.
In diesem Falle kann — bei einem evtl. Voreilen der Schaltuhr usw. — der Leitungsbetrieb noch so lange fortgesetzt werden, bis die drahtlosen Signale selbst eintreffen. Die drahtlose Sendung kann gegebenenfalls gleich mit dazu benutzt werden, die Zeigerstellvorrichtung der Schaltuhr zu betätigen und dadurch störende Gangfehler zu berichtigen. Gegebenenfalls kann ein normaler Rundfunkempfänger benutzt werden, wobei gleichzeitig mit der Anschaltung des Ferndruckers an die Ausgangsklemmen die Einschaltung eines auf die Trägerfrequenz fest abgestimmten Empfangskreises an Stelle des im Rundfunk- f apparat vorgesehenen variablen Empfangskreises erfolgt. In this case - in the event of the timer running ahead, etc. - line operation can be continued until the wireless signals arrive themselves. The wireless broadcast may be the same can also be used to actuate the pointer setting device of the timer and thereby to correct disturbing gait errors. If necessary, a normal radio receiver can be used, at the same time as the remote printer is switched on the output terminals the activation of a permanently tuned to the carrier frequency Receiving circuit takes place instead of the variable receiving circuit provided in the radio f apparatus.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM109506D DE524999C (en) | Circuit arrangement for message transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM109506D DE524999C (en) | Circuit arrangement for message transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
DE524999C true DE524999C (en) | 1931-05-18 |
Family
ID=7326730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM109506D Expired DE524999C (en) | Circuit arrangement for message transmission |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE524999C (en) |
-
0
- DE DEM109506D patent/DE524999C/en not_active Expired
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