DE1029410B - Relay transmitter for television purposes - Google Patents

Relay transmitter for television purposes

Info

Publication number
DE1029410B
DE1029410B DEF4253D DEF0004253D DE1029410B DE 1029410 B DE1029410 B DE 1029410B DE F4253 D DEF4253 D DE F4253D DE F0004253 D DEF0004253 D DE F0004253D DE 1029410 B DE1029410 B DE 1029410B
Authority
DE
Germany
Prior art keywords
relay transmitter
received
television picture
television
transmitter according
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.)
Pending
Application number
DEF4253D
Other languages
German (de)
Inventor
Victor Angel Jones
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.)
Robert Bosch Fernsehanlagen GmbH
Original Assignee
Fernseh GmbH
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 GB1440036A external-priority patent/GB475517A/en
Application filed by Fernseh GmbH filed Critical Fernseh GmbH
Priority to DEF4253D priority Critical patent/DE1029410B/en
Publication of DE1029410B publication Critical patent/DE1029410B/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0105—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level using a storage device with different write and read speed
    • H04N7/0107—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level using a storage device with different write and read speed using beam gun storage

Description

Die Erfindung beziöht sich darauf, ein empfangenes Fernsehbild von bestimmten Zerlegungsnormen in ein solches von anderen Zerlegungsnormen umzuwandeln und weiter zu übertragen. Beispielsweise tritt dieses Problem dann auf, wenn ein gegebener Übertragungskanal nur eine geringe Bildwecbselzabl oder Bilder von grober Rasterung zu übertragen gestattet oder wünschenswert erscheinen läßt, oder wenn es sich ganz allgemein darum handelt, von einer bestimmten Sendenorm auf eine andere überzugehen. Dabei können sich die Sendenormen hinsichtlich der BiIdwechselzahl, der Zeilenzahl, der zeitlichen Zeilenfolge u. dgl. unterscheiden.The invention relates to a received To convert television picture from certain decomposition standards into such from other decomposition standards and continue to transmit. For example, this occurs The problem arises when a given transmission channel only has a low level of image change or images of coarse screening permits or appears desirable, or if it is In general, it is about changing from a certain transmission standard to another. Included the broadcasting standards with regard to the number of image changes, the number of lines, the temporal line sequence and the like.

Nach der Erfindung wird aus den ursprünglich übertragenen Fernsehsignalen ein Empfangsbild aufgebaut, dieses Bild in einer anderen Zerlegungsnorm abgetastet und die daraus gewonnenen Bildsignale weiter übertragen.According to the invention, a reception image is built up from the originally transmitted television signals, this image is scanned in a different decomposition standard and the image signals obtained therefrom transferred further.

Es ist dabei notwendig, zur Wiedergabe des ursprünglich übertragenen Bildes einen Schirm zu verwenden, der z. B. mit einem Fluoreszenzmaterial geeigneter Nachleuchtzeit versehen ist oder aber mit anderen Mitteln eine Speicherung des Bildinhalts über möglichst eine Bildwecbselzeit gestattet. Andererseits kann auch das Abtastsystem, welches das zunächst empfangene Bild zerlegt und weiter überträgt, nach dem Speicherprinzip arbeiten.It is necessary to use a screen to reproduce the originally transmitted image, the z. B. is provided with a fluorescent material suitable afterglow time or with allows other means to store the image content for as long as possible an image change time. on the other hand the scanning system, which breaks down the initially received image and transmits it further, can also be used work according to the memory principle.

Die Erfindung ist an Hand der Zeichnung näher beschrieben. Gemäß der Zeichnung wird das zunächst empfangene Fernsehbild auf einem Schirm 5 entworfen. Dieser kann beispielsweise als Leuchtschirm in einer Elektronenentladungsröhre angeordnet sein, bei der ein gesteuerter Elektronenstrahl ein Leuchtbild der zu übertragenden Fernsehszene schreibt. Hierbei kann die örtliche Dichte des Elektronenstromes durch eine in der Röhre befindliche Mosaikelektrode gesteuert werden. Das auf dem Schirm entstehende Bild wird mittels der Linse 10 auf der durchsichtigen Photokathode 11 einer Elektronenkamera 14 entworfen. Die Zerlegungsart der Kamera kann sich von der Bildzusammensetzart auf dem Schirm 5 in einem oder mehreren der folgenden Merkmale unterscheiden: Bildfrequenz, Zeilenzahl, Zeilenrichtung, Relaissender für FernsehzweckeThe invention is described in more detail with reference to the drawing. According to the drawing, the television picture initially received is designed on a screen 5. This can be arranged, for example, as a fluorescent screen in an electron discharge tube, in which a controlled electron beam writes a luminous image of the television scene to be broadcast. Here, the local density of the electron flow through a mosaic electrode located in the tube being controlled. The resulting image on the screen is made transparent by means of the lens 10 Photocathode 11 of an electron camera 14 designed. The way the camera is dismantled can vary differ from the type of image composition on screen 5 in one or more of the following features: Frame rate, number of lines, line direction, relay transmitter for television purposes

Anmelder:Applicant:

Fernseh G.m.b.H.,TV G.m.b.H.,

Darmstadt, Am Alten Bahnhof 6Darmstadt, Am Alten Bahnhof 6

Victor Angel Jones, London,
ist als Erfinder genannt wordenVictor Angel Jones, London,
has been named as the inventor

zeitliche Zeilenfolge u. dgl. An Stelle der Anwendung der Linse 10 kann der Schirm 5 und das dazugehörige System auch in dem Gefäß der Elektronenkamera 14 angeordnet sein und sich der Schirm 5 unmittelbar an der Kathode 11 befinden.chronological order of lines and the like instead of the application of the lens 10, the screen 5 and the associated system can also be in the vessel of the electron camera 14 be arranged and the screen 5 is located directly on the cathode 11.

Claims (5)

Patentansprüche:Patent claims: 1. Relaissender für Fernsöhzwecke, dadurch gekennzeichnet, daß ein empfangenes Fernsehbild von bestimmter Sendenorm mit Hilfe eines entsprechenden Abtastsystems als Fernsehbild von anderer Sendenorm weitergegeben wird.1. Relay transmitter for television purposes, characterized in that that a received television picture of a certain broadcast standard with the help of a corresponding Scanning system is passed on as a television picture from another broadcast standard. 2. Relaissender nach Anspruch 1, dadurch gekennzeichnet, daß die Bildwechselzanl des weitergegebenen Fernsehbildes größer ist als die des empfangenen.2. Relay transmitter according to claim 1, characterized in that that the Bildwechselzanl of the transmitted television picture is greater than that of the received. 3. Relaissender nach Anspruch 1 und 2, dadurch gekennzeichnet, daß sich das empfangene und das weitergegebene Sendebild1 in Zeilenzahl, Zeilenrichtung und/oder zeitlicher Zeilenfolge unterscheiden. 3. Relay transmitter according to claim 1 and 2, characterized in that the received and the transmitted transmission picture 1 differ in the number of lines, line direction and / or time line sequence. 4. Relaissender nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß das empfangene Fernsehbild auf einer elektrisch oder optisch speichernden Fläche entworfen wird.4. relay transmitter according to claim 1 to 3, characterized in that the received television picture is designed on an electrically or optically storing surface. 5. Relaissender nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß die Abtastvorrichtung für das empfangene Fernsehbild nach dem Speicherprinzip arbeitet.5. Relay transmitter according to claim 1 to 3, characterized in that the scanning device for the received television picture works according to the memory principle. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEF4253D 1936-05-21 1937-05-21 Relay transmitter for television purposes Pending DE1029410B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF4253D DE1029410B (en) 1936-05-21 1937-05-21 Relay transmitter for television purposes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1440036A GB475517A (en) 1936-05-21 1936-05-21 Improvements in or relating to television and like systems
DEF4253D DE1029410B (en) 1936-05-21 1937-05-21 Relay transmitter for television purposes

Publications (1)

Publication Number Publication Date
DE1029410B true DE1029410B (en) 1958-05-08

Family

ID=25973732

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF4253D Pending DE1029410B (en) 1936-05-21 1937-05-21 Relay transmitter for television purposes

Country Status (1)

Country Link
DE (1) DE1029410B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1190976B (en) * 1959-06-08 1965-04-15 Ampex Standards converter for television signals
DE1282677B (en) * 1963-10-09 1968-11-14 Fernseh Gmbh Method and device for increasing the distance to interferers when transmitting television signals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1190976B (en) * 1959-06-08 1965-04-15 Ampex Standards converter for television signals
DE1282677B (en) * 1963-10-09 1968-11-14 Fernseh Gmbh Method and device for increasing the distance to interferers when transmitting television signals

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