DE594991C - Process for producing two recordings of acoustic processes on a magnetizable carrier - Google Patents
Process for producing two recordings of acoustic processes on a magnetizable carrierInfo
- Publication number
- DE594991C DE594991C DES96017D DES0096017D DE594991C DE 594991 C DE594991 C DE 594991C DE S96017 D DES96017 D DE S96017D DE S0096017 D DES0096017 D DE S0096017D DE 594991 C DE594991 C DE 594991C
- Authority
- DE
- Germany
- Prior art keywords
- magnetization
- recorded
- recordings
- frequencies
- longitudinal
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
Description
hibiiofkeek* '
; Ind. Eigendomhibiiofkeek * '
; Ind. Self-dom
2 4 APR. 19342 4 APR. 1934
AUSGEGEBEN AM
24. MARZ 1934ISSUED ON
MARCH 24, 1934
REICHSP.ATENTAMT .REICHSP.ATENTAMT.
PATENTSCHRIFTPATENT LETTERING
KLASSE 42 g GRUPPE 10 oiCLASS 42 g GROUP 10 oi
Siemens & Halske Akt.-Ges. in Berlin-SiemensstadtSiemens & Halske Akt.-Ges. in Berlin-Siemensstadt
Patentiert im Deutschen Reiche vom 10. Januar 1931 abPatented in the German Empire on January 10, 1931
Es ist bekannt, Schallvorgänge auf Laut- * schriftträger mit permanentmagnetischen Eigenschaften aufzuzeichnen. Die Aufzeichnung erfolgt gewöhnlich in der Weise, daß. man einen Stahldraht durch, einen Elektromagneten im Rhythmus der aufzuzeichnenden SchaUvorgänge magnetisiert. Der soIt is known that sound processes on phonetic * script carriers with permanent magnetic Record properties. The recording is usually done in such a way that. a steel wire through an electromagnet in the rhythm of the record Magnetized viewing processes. The so
. ' magnetisierte Stahldraht läuft an einem ande-, ren Elektromagneten vorbei, wodurch, in diesem Magneten Spannungen induziert werden, die. in bekannter Weise' verstärkt und wiedergegeben werden. Die Fig. 1 zeigt schematisch die Längsmagnetisierung eines Stahldrahtes. Der Stahldraht 1 läuft an den Polen 2 und 3 eines Elektromagneten vorbei, wodurch eine Magnetisierung entsteht, wie sie durch die gestrichelten Linien 4 angedeutet ist. Diese Magnetisierung läßt sich zerlegen in eine. 'Magnetized steel wire runs past another electromagnet, causing, in this one Magnets induce voltages that. in a known way 'amplified and reproduced will. Fig. 1 shows schematically the longitudinal magnetization of a steel wire. The steel wire 1 runs past the poles 2 and 3 of an electromagnet, whereby a magnetization occurs, as indicated by the dashed lines 4. These Magnetization can be broken down into one
-'" Längs- und eine dazu senkrecht stehende Querkomponente* Die Wiedergabe erfolgt analog wie die Aufnahme. Die beiden Komponenten setzen sich zu einer gemeinsamen Komponente zusammen.- '"Longitudinal component and a transverse component perpendicular to it * The playback takes place analogous to the recording. The two components become one common Component together.
Derartige Aufzeichnungsverfahren haben den großen Nachteil, daß nur eine einzige Aufzeichnung auf dem Lautschriftträger vorhanden ist. Dies wird besonders dann unangenehm sein, wenn es darauf ankommt, ein möglichst großes Frequenzband aufzuzeichnen. Durch die magnetischen Eigenschaften des Stahl bedingt, kann man nämlich hohe Frequenzen nur verhältnismäßig schwer aufzeichnen. Will man hohe Frequenzen haben, so muß man mit einer unverhältnismäßig hohen Magnetisierungskraft bei den hohen Frequenzen arbeiten, wodurch die Gefahr entsteht, daß die Aufzeichnungen der niederen und mittleren Frequenzen überdeckt und zum Teil auch gelöscht werden.Such recording methods have the great disadvantage that only one There is a record on the phonetic transcription carrier. This becomes particularly uncomfortable then when it comes to recording the largest possible frequency band. Due to the magnetic properties Because of the steel, it is relatively difficult to record high frequencies. If you want to have high frequencies, you have to have a disproportionately high magnetizing force at the high Frequencies work, creating the risk that the records of the lower and middle frequencies are covered and partly also deleted.
Gemäß der Erfindung besteht ein Verfahren zur Aufzeichnung und Wiedergabe von Schallvorgängen auf Lautschriftträgern mit permanentmagnetischen Eigenschaften darin, daß eine Magnetisierung in zwei Richtungen erfolgt, deren Lage so zueinander ist, daß die gegenseitige Beeinflussung ein Minimum wird.According to the invention there is a method for recording and reproducing Sound processes on phonetic carriers with permanent magnetic properties in them, that a magnetization takes place in two directions, the position of which is relative to one another that the mutual influence becomes a minimum.
Eine Anordnung gemäß, der Erfindung zeigt die Fig. 2. Auf den Stahldraht 1 wird durch die beiden Polschuhe 2 und '3 eines' Elektromagneten eine Magnetisierung bewirkt, die durch die gestrichelten Linien 4 dargestellt ist. Senkrecht zu der mit 4 bezeichneten Magnetisierung wird durch die Polschuhe 5 und 6 eines weiteren Elektromagneten eine" Quermagnetisierung 7 bewirkt, deren Lage zu der Magnetisierung 4 so groß ist, daß die gegenseitige Beeinflussung ein Minimum wird.An arrangement according to the invention is shown in FIG. 2. On the steel wire 1 is through the two pole shoes 2 and '3 of an' electromagnet causes a magnetization that is represented by the dashed lines 4. Perpendicular to the one marked 4 Magnetization is caused by the pole shoes 5 and 6 of another electromagnet a " Transverse magnetization 7 causes the position of the magnetization 4 is so large that the mutual influence becomes a minimum.
Durch diese doppelte Magnetisierung auf dem Lautschriftträger erreicht man eine Anzahl von Vorteilen. Man kann beispielsweise bei der bekannten Zerlegung des aufzuzeichnenden Frequenzbandes in mehrere Frequenzbereiche durch die Längsmagnetisicrung 4 dieThis double magnetization on the phonetic carrier gives a number of advantages. One can, for example, with the known decomposition of the record to be recorded Frequency band in several frequency ranges through the longitudinal magnetization 4 the
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES96017D DE594991C (en) | 1931-01-10 | 1931-01-10 | Process for producing two recordings of acoustic processes on a magnetizable carrier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES96017D DE594991C (en) | 1931-01-10 | 1931-01-10 | Process for producing two recordings of acoustic processes on a magnetizable carrier |
Publications (1)
Publication Number | Publication Date |
---|---|
DE594991C true DE594991C (en) | 1934-03-24 |
Family
ID=7519767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES96017D Expired DE594991C (en) | 1931-01-10 | 1931-01-10 | Process for producing two recordings of acoustic processes on a magnetizable carrier |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE594991C (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2488717A (en) * | 1945-11-19 | 1949-11-22 | Chicago Coin Machine Co | Magnetizable wire recording system and method |
US2496441A (en) * | 1946-03-09 | 1950-02-07 | Armour Res Found | Magnetic recording apparatus |
US2511606A (en) * | 1945-10-09 | 1950-06-13 | Philco Corp | Method and apparatus for producing a helical magnetic sound track on a wire record |
US2536810A (en) * | 1945-04-16 | 1951-01-02 | Stromberg Carlson Co | Method and apparatus for improving the low-frequency response in magnetic recording and reproducing units |
DE875872C (en) * | 1949-02-10 | 1953-05-07 | Licentia Gmbh | Procedure for inserting corrections in magnetic recorders |
DE891622C (en) * | 1950-07-04 | 1953-10-01 | Loewe Opta Ag | Method for recording and playing back several individual events on a common track |
US2697754A (en) * | 1949-03-31 | 1954-12-21 | Richard H Ranger | Magnetic sound recording |
US2712572A (en) * | 1947-03-27 | 1955-07-05 | Int Electronics Co | Superimposed plural recording |
US2803988A (en) * | 1951-05-04 | 1957-08-27 | Richard H Ranger | Synchronzied magnetic sound recording apparatus |
DE1193808B (en) * | 1953-03-13 | 1965-05-26 | Eltra Corp | Photographic line setting machine |
-
1931
- 1931-01-10 DE DES96017D patent/DE594991C/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2536810A (en) * | 1945-04-16 | 1951-01-02 | Stromberg Carlson Co | Method and apparatus for improving the low-frequency response in magnetic recording and reproducing units |
US2511606A (en) * | 1945-10-09 | 1950-06-13 | Philco Corp | Method and apparatus for producing a helical magnetic sound track on a wire record |
US2488717A (en) * | 1945-11-19 | 1949-11-22 | Chicago Coin Machine Co | Magnetizable wire recording system and method |
US2496441A (en) * | 1946-03-09 | 1950-02-07 | Armour Res Found | Magnetic recording apparatus |
US2712572A (en) * | 1947-03-27 | 1955-07-05 | Int Electronics Co | Superimposed plural recording |
DE875872C (en) * | 1949-02-10 | 1953-05-07 | Licentia Gmbh | Procedure for inserting corrections in magnetic recorders |
US2697754A (en) * | 1949-03-31 | 1954-12-21 | Richard H Ranger | Magnetic sound recording |
DE891622C (en) * | 1950-07-04 | 1953-10-01 | Loewe Opta Ag | Method for recording and playing back several individual events on a common track |
US2803988A (en) * | 1951-05-04 | 1957-08-27 | Richard H Ranger | Synchronzied magnetic sound recording apparatus |
DE1193808B (en) * | 1953-03-13 | 1965-05-26 | Eltra Corp | Photographic line setting machine |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE594991C (en) | Process for producing two recordings of acoustic processes on a magnetizable carrier | |
DE3525383A1 (en) | Method and device for demagnetising magnetic recording media | |
DE571954C (en) | Method for recording a moving object or a changing scene | |
DE587916C (en) | Process for the production of phonetic carriers | |
DE591368C (en) | Method and device for deleting recordings of transversely magnetized ferromagnetic sound carriers | |
DE2705182A1 (en) | Magnetic sound carrier recording and read-out system - has information in clear and control code recorded on same sound carrier track | |
DE735259C (en) | Process for inserting additions and changes in dictations recorded after the magnetic sound process | |
DE840457C (en) | Method for expanding the reproduction range of sound storage devices | |
DE710594C (en) | One-sided touching erase head for devices for magnetic sound recording | |
DE712759C (en) | Method for magnetic sound recording using the push-pull method | |
DE526907C (en) | Mechanically-electrically operating sound box for playing back recordings | |
DE1023603B (en) | Magnetic head assembly | |
DE545531C (en) | Method for recording the time or advertising announcement for conversation carriers (plates, rollers or films) from speaking clocks | |
DE632679C (en) | Method of making a magnetic sound recording | |
DE910602C (en) | Method of copying a magnetic sound recording | |
DE587287C (en) | Process for electromagnetic sound recording and undistorted sound reproduction without background noise | |
DE917979C (en) | Magnetic recorder | |
DE804374C (en) | Method and device for marking selected parts of a magnetic sound recording | |
AT121091B (en) | Method and device for shortening (cutting and connecting) a sound carrier made of steel wire and a reproduction magnet system (headset) for this sound carrier. | |
DE474402C (en) | Process for the production of photographic or cinematographic announcements, film titles, slides or the like. | |
DE836258C (en) | Method for recording time announcements or advertisements for conversation carriers (records, rollers, films, sound tapes, magnetic tapes etc.) from << speaking clocks >> | |
AT162852B (en) | Method for recording mixed frequencies on tape-shaped sound text carriers | |
DE537857C (en) | Procedure for the investigation of telephone transmission systems | |
DE585303C (en) | Device for deleting magnetic sound recordings | |
DE341566C (en) | Process for making related picture and sound film pieces recognizable |