DE664362C - Device for sending or receiving for the electrical remote transmission of image and sound events - Google Patents

Device for sending or receiving for the electrical remote transmission of image and sound events

Info

Publication number
DE664362C
DE664362C DER90341D DER0090341D DE664362C DE 664362 C DE664362 C DE 664362C DE R90341 D DER90341 D DE R90341D DE R0090341 D DER0090341 D DE R0090341D DE 664362 C DE664362 C DE 664362C
Authority
DE
Germany
Prior art keywords
sound events
image
receiving
sending
remote transmission
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
DER90341D
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Application granted granted Critical
Publication of DE664362C publication Critical patent/DE664362C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/08Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/084Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the horizontal blanking interval only

Description

Einrichtung zum Senden oder Empfangen für die elektrische Fernübertragung # von Bild.. und Schallereignissen E ,s ist bekannt, Bild- und Schallereignisse auf einer einzigen Trägerwelle dadurch zu übertragen, daß man die während der Abtastdauer der einzelnen Zeilen des fernzuübertragenden Bildes auftretenden Schallereignisse speichert, dann in Pausen zwischen den einzelnen Bildzeilen diese gespeicherten Schallereignisse mit höherer Geschwindigkeit, als es ihrem Auftreten entspricht, abtastet und fernüberträgt. Im Fernsehempfänger werden dann während der Pausen zwischen den einzelnen Bildzeilen die mit höherer Geschwindigkeit übertragenen Schallereignisse ebenfalls gespeichert und während der Wiedergabe der nächsten Bildzeilen abgetastet und einem Lautsprecher -zugeführt.Device for sending or receiving for electrical remote transmission # of image .. and sound events E, s is known, image and sound events on a single carrier wave by taking the during the sampling period sound events occurring in the individual lines of the image to be transmitted remotely saves, then in pauses between the individual image lines these saved Sound events with a higher speed than it corresponds to their occurrence, scans and transmits remotely. In the television receiver are then during the breaks between the sound events transmitted at a higher speed in the individual image lines also stored and scanned during playback of the next picture lines and a loudspeaker.

Bisher. hat man sich zur Speicherung stets mechanischer Einrichtungen bedient, wie beispielsweise einer Schallplatte oder eines Stahlbandes. Derartige Anordnungen sind jedoch für den erwähnten Zweck praktisch nicht geeignet, weil die Zeilenpausen von außerordentlich kurzer Dauer sind und es deshalb nicht möglich ist; für die Schalldarbietungen die Abtasteinrichtung auf der Senderseite und die entsprechende Speichereinrichtung auf der Empfangsseite so schnell zu bewegen, wie es nötig wäre, um die Abtastung bzw. Speicherung tatsächlich zu bewerkstelligen.Until now. one always has to store mechanical devices operated, such as a record or a steel tape. Such However, arrangements are practically unsuitable for the purpose mentioned because the Line breaks are extremely short and therefore not possible is; for the sound performances the scanning device on the transmitter side and the move the corresponding storage device on the receiving side as fast as it would be necessary to actually accomplish the sampling or storage.

Gemäß der Erfindung wird zur Speicherung und Abtastung ,auf der Sende- sowohl als auch auf der Empfangsseite eine Kathodenstrahlröhre verwendet. Die Speicherung der Schallereignisse geschieht dabei durch einen mit diesen modulierten Kathodenstrahl, der über eine Mehrzahl sog. Mosaikelemente hinwegbewegt wird und die Mosaikelemente entsprechend auflädt. Für die Abtastung der gespeicherten Schallereignisse hingegen durchläuft ein in seiner Intensität konstanter Kathodenstrahl den gleichen Weg, jedoch zweckmäßig in umgekehrter Richtung wie bei der Speicherung.According to the invention, for storage and scanning, on the transmission a cathode ray tube is used both on the receiving side. The storage the sound events happen through a cathode ray modulated with this, which is moved over a plurality of so-called mosaic elements and the mosaic elements charges accordingly. For the scanning of the stored sound events, however a cathode ray of constant intensity traverses the same path, however, it is useful in the opposite direction as in the case of storage.

Während des Aufzeichnungsvorganges (Speicherung) ist die Bewegungsgeschwindigkeit des Kathodenstrahles auf der Sendersei:te verhältnismäßig gering, während des Abtastvorganges hingegen groß. Im Empfänger geschieht die Aufzeichnung dagegen mit großer und die Abtastung mit geringer Geschwindigkeit. Die Speicherung und Abtastung geschieht dabei auf der Sender- und Empfangsseite im einzelnen dadurch, daß der modulierte Kathodenstrahl die Mosaikelemente (Elementarkondensatoren) auflädt entsprechend seiner jeweiligen Intensität, die sieh senderseitig mit dem Augenblickswert des natürlichen Tonablaufs ändert, während empfängsseitig die Änderung :entsprechend dem zeitlich komprimierten Tonablauf stattfindet, und daß bei der Abtastung wegen der Sekundäremission, welche der dann eine konstante Intensität besitzende Kathodenstrahl hervorruft, die Mosaikelemente wiederentladen werden.During the recording process (storage) is the movement speed of the cathode ray on the transmitter side is relatively low during the scanning process however big. In the receiver, on the other hand, the recording is done with large and the Scanning at low speed. The storage and sampling is done while on the transmitter and Receiving side in detail in that the modulated cathode ray charges the mosaic elements (elementary capacitors) according to its respective intensity, which is shown on the transmitter side with the instantaneous value of the natural tone sequence changes, while on the receiving side the change: accordingly the time-compressed sound sequence takes place, and that because of the sampling the secondary emission, which is the cathode ray, which then has a constant intensity causes the mosaic elements to be discharged again.

Die Bestimmung der Ablenkgeschwindihkeit eines Kathodenstrahles und die Verriegelung der Intensitätssteuerung des Kathodenstrahles für den Abtastvorgang kann dabei auf der Sender- und Empfängerseite mit Hilfe der sägezahnförmigen Spannungen oder Ströme bewerkstelligt werden, welche auf der Senderseite einen etwa benutzten Kathodenstrahlbildabtaster und auf der Empfängerseite eine Braunsche Fernsehempfangsröhre steuern.The determination of the deflection speed of a cathode ray and the interlocking of the intensity control of the cathode ray for the scanning process can be done on the transmitter and receiver side with the help of the sawtooth-shaped voltages or streams are created which used one on the sender side Cathode ray scanner and on the receiver side a Braun television receiver tube steer.

Claims (1)

PATENTANSPRUCI3: Einrichtung zum Senden oder Empfangen für die elektrische Fernübertragung von Bild- und -Schallereignissen, bei der in den Pausen zwischen den einzelnen Zeilen des fernzuübertragenden Bildes die während der Zeilendauer gespeicherten Schallereignisse abgetastet und fernübertragen werden, dadurch gekennzeichnet, daß die Speicherung der Schallereignisse und die Abtastung derselben mit Hilfe einer speichernden Kathodenstrahlröhre geschieht, deren Strahl für den Speicherungsvorgang moduliert wird, für den Abtastvorgang dagegen eine konstante Intensität besitzt.PATENTANSPRUCI3: Device for sending or receiving for the electrical Remote transmission of image and sound events during the breaks between the individual lines of the image to be transmitted remotely during the line duration stored sound events are scanned and transmitted remotely, characterized in that that the storage of the sound events and the scanning of the same with the help of a storing cathode ray tube happens, the beam for the storage process is modulated, but has a constant intensity for the scanning process.
DER90341D 1933-04-08 1934-04-07 Device for sending or receiving for the electrical remote transmission of image and sound events Expired DE664362C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US664362XA 1933-04-08 1933-04-08

Publications (1)

Publication Number Publication Date
DE664362C true DE664362C (en) 1938-08-25

Family

ID=22069487

Family Applications (1)

Application Number Title Priority Date Filing Date
DER90341D Expired DE664362C (en) 1933-04-08 1934-04-07 Device for sending or receiving for the electrical remote transmission of image and sound events

Country Status (1)

Country Link
DE (1) DE664362C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1562316B1 (en) * 1963-12-12 1971-01-21 Columbia Broadcasting Syst Inc Device for synchronizing the vertical scan with the film transport in a television film scanner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1562316B1 (en) * 1963-12-12 1971-01-21 Columbia Broadcasting Syst Inc Device for synchronizing the vertical scan with the film transport in a television film scanner

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