AT148347B - Device for displaying the respective width of the frequency band passed by a variable filter, in particular for radio receivers. - Google Patents

Device for displaying the respective width of the frequency band passed by a variable filter, in particular for radio receivers.

Info

Publication number
AT148347B
AT148347B AT148347DA AT148347B AT 148347 B AT148347 B AT 148347B AT 148347D A AT148347D A AT 148347DA AT 148347 B AT148347 B AT 148347B
Authority
AT
Austria
Prior art keywords
displaying
frequency band
radio receivers
variable filter
respective width
Prior art date
Application number
Other languages
German (de)
Original Assignee
Minerva Radio W Wohleber & Co
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 Minerva Radio W Wohleber & Co filed Critical Minerva Radio W Wohleber & Co
Application granted granted Critical
Publication of AT148347B publication Critical patent/AT148347B/en

Links

Landscapes

  • Structure Of Receivers (AREA)
  • Circuits Of Receivers In General (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Vorrichtung zum Anzeigen der jeweiligen Breite des von einem variablen Filter   durchgelassenen  
Frequenzbandes, insbesondere für   Rundfunkempfänger.   
 EMI1.1 
 

 <Desc/Clms Page number 2> 

 



   Die Gesamtanordnung kann mit Vorteil derart getroffen werden, dass hinter dem   Spalt die   die Stationsnamen tragende Skala beweglich ist. Bei entsprechender Übersetzung zwischen dem Bandfilter und den Anzeigeorganen wird es dann direkt auf der Skala ersichtlich, wie bei   Vergrösserung   der Bandbreite in den Frequenzbereich der benachbarten Station übergegriffen wird. Der die Skala bewegende Abstimmknopf kann mit dem das Bandfilter verstellenden Knopf gleiehaehsig angeordnet werden, um die Übersichtlichkeit der Bedienungsknöpfe nicht zu beeinträchtigen. 



   Entsprechend der Fig. 2 ist eine gegenläufige Bewegung der beiden Anzeigeorgane dadurch erzielt, dass jedes der beiden   sektorförmigen Anzeigeorgane   unter Zwischenschaltung von Lenkern 7 und eines   Gleitstückes     9.   das längs einer Führung 8 verschiebbar ist, mit dem andern Anzeigeorgan verbunden ist. Der Antrieb der ganzen Vorrichtung erfolgt durch den das Filter verstellenden Knopf 10. Das Anzeigeorgan 2 weist einen   Ausschnitt J. 7   auf, so dass das dahinter befindliche andere Anzeigeorgan 1 durch diesen Ausschnitt hindurch sichtbar wird.

   Eine Skala, welche auf 1 sitzt, erleichtert die Wiedereinstellung der günstigsten   Filterstellul1g.   Die Anordnung kann aber auch derart erfolgen, dass die Ablesung der gerade eingestellten Bandbreite direkt auf der Stationsskala erfolgt, wofür die Fig. 3 ein Beispiel zeigt. 



   Nach Fig. 3 kann die Skala 12 als   Trommelskala   ausgeführt sein. Längs einer Stange   1 :, sind   
 EMI2.1 




   <Desc / Clms Page number 1>
 



  Device for displaying the respective width of the filter passed by a variable
Frequency band, in particular for radio receivers.
 EMI1.1
 

 <Desc / Clms Page number 2>

 



   The overall arrangement can advantageously be made such that the scale bearing the station names is movable behind the gap. With a corresponding translation between the band filter and the display elements, it can be seen directly on the scale how the frequency range of the neighboring station is extended when the bandwidth is increased. The tuning button that moves the scale can be arranged identically with the button that adjusts the band filter, so as not to impair the clarity of the control buttons.



   According to FIG. 2, the two display elements move in opposite directions in that each of the two sector-shaped display elements is connected to the other display element with the interposition of links 7 and a slider 9, which is displaceable along a guide 8. The entire device is driven by the button 10 that adjusts the filter. The display element 2 has a cutout J. 7, so that the other display element 1 located behind it becomes visible through this cutout.

   A scale on 1 makes it easier to set the most favorable filter setting again. However, the arrangement can also take place in such a way that the reading of the bandwidth just set takes place directly on the station scale, of which FIG. 3 shows an example.



   According to Fig. 3, the scale 12 can be designed as a drum scale. Along a rod 1:, are
 EMI2.1


 

Claims (1)

<Desc/Clms Page number 3> <Desc / Clms Page number 3> 5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet. dass als Anzeigeorgane für das Filter Teile des Stationsanzeigeorgans Verwendung finden, indem dieses messerartig ausgebildet ist und in Abhängigkeit von der Stellung des Filters drehbar gelagert ist, so dass es bei entsprechender Beleuchtung fähig ist, einen Schatten wechselnder Breite zu erzeugen (Fig. o). EMI3.1 5. Apparatus according to claim 1, characterized. that parts of the station display element are used as display elements for the filter in that it is designed like a knife and is rotatably mounted depending on the position of the filter, so that with appropriate lighting it is able to create a shadow of varying width (Fig. o). EMI3.1
AT148347D 1935-04-10 1935-04-10 Device for displaying the respective width of the frequency band passed by a variable filter, in particular for radio receivers. AT148347B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT148347T 1935-04-10

Publications (1)

Publication Number Publication Date
AT148347B true AT148347B (en) 1937-01-11

Family

ID=3645079

Family Applications (1)

Application Number Title Priority Date Filing Date
AT148347D AT148347B (en) 1935-04-10 1935-04-10 Device for displaying the respective width of the frequency band passed by a variable filter, in particular for radio receivers.

Country Status (1)

Country Link
AT (1) AT148347B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE953816C (en) * 1953-02-07 1956-12-06 Telefunken Gmbh Device for displaying the timbre of radio receivers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE953816C (en) * 1953-02-07 1956-12-06 Telefunken Gmbh Device for displaying the timbre of radio receivers

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