DE965536C - Listening or speaking head for multi-track recording in magnetic sound recording - Google Patents

Listening or speaking head for multi-track recording in magnetic sound recording

Info

Publication number
DE965536C
DE965536C DEA10384D DEA0010384D DE965536C DE 965536 C DE965536 C DE 965536C DE A10384 D DEA10384 D DE A10384D DE A0010384 D DEA0010384 D DE A0010384D DE 965536 C DE965536 C DE 965536C
Authority
DE
Germany
Prior art keywords
listening
speaking
recording
heads
head 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.)
Expired
Application number
DEA10384D
Other languages
German (de)
Inventor
Dipl-Ing Eduard Schueller
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Priority to DEA10384D priority Critical patent/DE965536C/en
Application granted granted Critical
Publication of DE965536C publication Critical patent/DE965536C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/29Structure or manufacture of unitary devices formed of plural heads for more than one track

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)

Description

Hör- oder Sprechkopf für Mehrspuraufzeichnung bei der magnetischen Schallaufzeichnung In der Schallaufzeichnungstechnik entsteht häufig die Aufgabe, mehrere getrennte Tonspuren auf ein und demselben Aufzeichnungsträger aufzubringen. Für die Durchführung dieser Aufgabe fehlte es bisher an einem geeigneten Sprechkopf, wenn die Schallaufzeichnung auf magnetischem Wege vorgenommen werden soll.Listening or speaking head for multi-track recording with magnetic Sound recording In sound recording technology, the task often arises to apply several separate audio tracks on one and the same recording medium. So far there was no suitable headset to carry out this task, if the sound recording is to be made magnetically.

Es ist bereits ein Hör- oder Sprechkopf zur Längsmagnetisierung von bandförmigen Tonaufzeichnungsträgern nach dem Gegentaktverfahren unter Verwendung zweier getrennter Tonspuren bekannt, bei dem je zwei .zu verschiedenen Einzelköpfen gehörende Kernteile unter Einfügung einer Abschirmplatte aus unmagnetischem Material fest miteinander verbunden sind, so daß sie beim spiegelbildlichen Zusammenfügen mit den beiden anderen Kernteilen einen genau fluchtenden gemeinsamen Arbeitsluftspa,lt bilden.It is already a listening or speaking head for longitudinal magnetization of tape-shaped sound recording media by the push-pull method using two separate audio tracks known, each with two .zu different individual heads Corresponding core parts with the insertion of a shielding plate made of non-magnetic material are firmly connected so that they are mirror-inverted assembly with the other two core parts a precisely aligned common working air space, according to form.

In Weiterentwicklung dieser Anordnung besteht nun die Erfindung darin, daß drei oder mehrere Einzelmagnetköpfe zu einem System zur Aufzeichnung von drei oder mehreren Spuren vereinigt sind.In a further development of this arrangement, the invention now consists in that three or more individual magnetic heads to a system for recording three or several tracks are combined.

Ein solcher Magnetkopf bietet eine Reihe wichtiger Vorteile. Er kann durch Hinzufügen beliebiger Kernteile zu einem System für beliebig viele Spuren ausgebaut werden.Such a magnetic head offers a number of important advantages. He can by adding any core parts to a system for any number of tracks get extended.

Zur Erzielung besonders guter Ergebnisse werden gemäß weiterer Ausbildung der Erfindung die Abschirmplatten zwischen den Einzelköpfen verschieden stark und aus verschiedenem Material gewählt. Beim Sprechkopf können: sie dünner sein als beim Hörkopf.In order to achieve particularly good results, further training is required of the invention, the shielding plates are different between the individual heads strong and chosen from different material. With the speaking head: they can be thinner than with the ear head.

Beim Hochfrequenz-Vormagnetisierungsverfahren wird man die Abschirmplatten zweckmäßigerweise aus Kupfer herstellen, weil dadurch ein Übersprechen der Hochfrequenz zwischen den einzelnen Kopfteilen vermieden wird.In the high-frequency bias process, one becomes the shielding plates Expediently made of copper, because this causes crosstalk of the high frequency between the individual headboards is avoided.

Um auch ein Übersprechen der Tonfrequenzen zu vermeiden, kann man die Abschirmplatten aus einem hochpermeablen Material herstellen und auf beiden Seiten durch unmagnetische Materialien gegen die Einzelköpfe magnetisch isolieren oder mit einem Kupferüberzug versehen.In order to avoid crosstalk of the audio frequencies, one can Make the shielding plates from a highly permeable material and on both Magnetically isolate the sides from the individual heads using non-magnetic materials or provided with a copper coating.

Schließlich kann auch noch in ein und demselben Magnetsystem ein zusätzlicher Einzelkopf zur Aufzeichnung und Wiedergabe von Steuersignalen vorgesehen werden.Finally, an additional magnet system can also be used in one and the same magnet system Single head can be provided for recording and reproducing control signals.

Claims (1)

PATENTANSPRÜCHE: i. Hör- oder Sprechkopf zur Längsmagnetisierung von bandförmigen Tonaufzeichnungsträgern unter Verwendung mehrerer getrennter Tonspuren, bei dem je zwei zu verschiedenen Einzelköpfen gehörende Kernteile unter Beifügung einer Abschirmplatte aus unmagnetischem Material fest miteinander verbunden sind, so daß sie beim spiegelbildlichen Zusammenfügen mit den anderen Kernteilen einen genau fluchtenden gemeinsamen Spalt bilden, dadurch gekennzeichnet, daß drei oder mehrere Einzelmagnetköpfe zu einem System zur Aufzeichnung mehrerer Spuren vereinigt sind. a. Hör- oder Sprechkopf nach Anspruch i, dadurch gekennzeichnet, daß die Einzelköpfe durch Abschirmplatten voneinander getrennt sind, die bei den Sprechköpfen dünner sind als bei den Hörköpfen. . 3. Hör- und Sprechkopf nach Anspruch i oder z, dadurch gekennzeichnet, daß die Abschirmplatten aus Kupfer hergestellt sind. q.. Hör- oder Sprechkopf nach Anspruch i bis 3, dadurch gekennzeichnet, daß die Abschirmplatten aus einem hochpermeablen -Material bestehen und mit einem Überzug aus Kupfer versehen sind. 5. Hör- und Sprechkopf nach Anspruch i, gekennzeichnet durch einen zusätzlichen Einzelkopf für Steuersignale in ein und demselben Ma2,netsvstem. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 702 a98.PATENT CLAIMS: i. Listening or speaking head for the longitudinal magnetization of tape-shaped sound recording media using several separate sound tracks, in which two core parts belonging to different individual heads are firmly connected to one another with the addition of a shielding plate made of non-magnetic material, so that when they are joined together in mirror image with the other core parts, they share an exactly aligned joint Form gap, characterized in that three or more individual magnetic heads are combined to form a system for recording several tracks. a. Listening or speaking head according to Claim i, characterized in that the individual heads are separated from one another by shielding plates which are thinner in the case of the speech heads than in the case of the earphones. . 3. listening and speaking head according to claim i or z, characterized in that the shielding plates are made of copper. q .. listening or speaking head according to claim i to 3, characterized in that the shielding plates consist of a highly permeable material and are provided with a coating of copper. 5. listening and speaking head according to claim i, characterized by an additional single head for control signals in one and the same Ma2, netsvstem. Documents considered: German Patent No. 702 a98.
DEA10384D 1942-06-25 1942-06-25 Listening or speaking head for multi-track recording in magnetic sound recording Expired DE965536C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA10384D DE965536C (en) 1942-06-25 1942-06-25 Listening or speaking head for multi-track recording in magnetic sound recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA10384D DE965536C (en) 1942-06-25 1942-06-25 Listening or speaking head for multi-track recording in magnetic sound recording

Publications (1)

Publication Number Publication Date
DE965536C true DE965536C (en) 1957-06-27

Family

ID=6922030

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA10384D Expired DE965536C (en) 1942-06-25 1942-06-25 Listening or speaking head for multi-track recording in magnetic sound recording

Country Status (1)

Country Link
DE (1) DE965536C (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE702298C (en) * 1938-11-24 1941-02-04 Aeg Listening or speaking head for longitudinal magnetization of tape-shaped sound recording media using the push-pull method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE702298C (en) * 1938-11-24 1941-02-04 Aeg Listening or speaking head for longitudinal magnetization of tape-shaped sound recording media using the push-pull method

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