DE1045797B - Synchronization device for perforated film strips using a drive without a toothed drum - Google Patents

Synchronization device for perforated film strips using a drive without a toothed drum

Info

Publication number
DE1045797B
DE1045797B DEA27891A DEA0027891A DE1045797B DE 1045797 B DE1045797 B DE 1045797B DE A27891 A DEA27891 A DE A27891A DE A0027891 A DEA0027891 A DE A0027891A DE 1045797 B DE1045797 B DE 1045797B
Authority
DE
Germany
Prior art keywords
perforation
synchronization device
drive
toothed drum
film
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
DEA27891A
Other languages
German (de)
Inventor
Hubert Asam
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.)
HUBERT ASAM FA ING
Original Assignee
HUBERT ASAM FA ING
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 HUBERT ASAM FA ING filed Critical HUBERT ASAM FA ING
Priority to DEA27891A priority Critical patent/DE1045797B/en
Publication of DE1045797B publication Critical patent/DE1045797B/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10F—AUTOMATIC MUSICAL INSTRUMENTS
    • G10F5/00—Details or accessories
    • G10F5/02—Actions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means
    • G03B31/04—Associated working of cameras or projectors with sound-recording or sound-reproducing means in which sound track is not on, but is synchronised with, a moving-picture film
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K13/00—Conveying record carriers from one station to another, e.g. from stack to punching mechanism
    • G06K13/18—Conveying record carriers from one station to another, e.g. from stack to punching mechanism the record carrier being longitudinally extended, e.g. punched tape
    • G06K13/26—Winding-up or unwinding of record carriers; Driving of record carriers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
    • H02P5/52—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another additionally providing control of relative angular displacement

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Advancing Webs (AREA)

Description

Synchronisierungseinrichtung für perforierte Filmbänder unter Verwendung eines Laufwerkes ohne Zahntrommel Gegenstand der Erfindung ist eine Synchronisierungseinrichtung für perforierte Filmbänder unter Verwendung eines Laufwerkes ohne Zahntrommel.Synchronizing device for perforated film tapes using of a drive without a toothed drum The invention relates to a synchronization device for perforated film tapes using a drive without a toothed drum.

Bekannt sind Synchronisierungseinrichtungen, bei denen eine mit einem Synchronmotor gekuppelte Zahntrommel in die Perforation des Filmbandes eingreift. Diese Einrichtungen erreichen wohl zwangläufig die synchrone Bandbewegung über längere Zeit, haben aber sonst große Nachteile. So ist z. B. die Bandbewegung für Tonaufnahmen nicht gleichförmig genug, weshalb zur Vermeidung von Tonhöheschiwankungen ein eigener Tonläufer mit Schwungmassen and Dämpfungseinrichtungen erforderlich ist. Letztere verursachen wiederum eine sehr lange Hochlaufzeit. Weiterhin ist das Einlegen des Filmbandes ziemlich schwierig, und die Perforation reißt leicht aus, was sich besonders beim schnellen Vor- und Rücklauf bei der Bearbeitung der Filmhänder sehr nachteilig auszvi rkt.Synchronization devices are known in which one with a Synchronous motor-coupled toothed drum engages in the perforation of the film strip. These devices inevitably achieve the synchronous belt movement over longer periods of time Time, but otherwise have major disadvantages. So is z. B. the tape movement for sound recordings not uniform enough, which is why a separate one to avoid pitch fluctuations Tonrunner with flywheels and damping devices is required. Latter in turn cause a very long start-up time. Furthermore, the insertion of the Film tape quite difficult, and the perforation tears out easily, which is special very disadvantageous in fast forward and rewind when processing the film dealer extracted.

Diese -Nachteile werden zwar vermieden, wenn man das Filmband in bekannter Weise durch eine glatte Rolle antreibt, doch treten weitere Schwierigkeiten dadurch auf, daß dieser Antrieb nicht synchron läuft.These disadvantages are avoided if the film tape is known Drives wisely through a smooth roller, yet further difficulties arise as a result that this drive is not running synchronously.

Erfindungsgemäß wird nun der synchrone Lauf dadurch erreicht, daß man die Perforation elektrisch abtastet und die daraus gewonnene elektrische Größe zur Nachsteuerung des Antriebsmotors benutzt.According to the invention, the synchronous run is now achieved in that the perforation is scanned electrically and the electrical quantity obtained from it used to readjust the drive motor.

In der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes dargestellt.The drawing shows an exemplary embodiment of the subject matter of the invention shown.

Der Synchronmotor M treibt die glatte Laufrolle R an, die das perforierte Filmband B bewegt, sobald es von der Andruckrolle A angepreßt wird. Zur synchronen Bewegung des Bandes dient folgende Einrichtung Der Lichtstrahl L geht durch die Perforation P des lichtundurchlässigen Filmbandes zur Fotozelle F und erzeugt in dieser die Frequenz fb, die der Bandgeschwindigkeit proportional ist. Diese Frequenz fb wird nun der Nachsteuereinrichtung N zugeführt, in der durch Vergleich mit der Vergleichsfrequenz .f" die Frequenz f. für den Synchronmotor entsteht.The synchronous motor M drives the smooth roller R, which the perforated Film tape B moves as soon as it is pressed by pressure roller A. To synchronous The following device is used to move the belt. The light beam L goes through the Perforation P of the opaque film tape to the photocell F and generated in this the frequency fb, which is proportional to the belt speed. This frequency fb is now fed to the readjustment device N, in which by comparison with the Comparison frequency .f "the frequency f. For the synchronous motor is created.

Ist fb größer als f" (Filmband läuft zu schnell), so wird der Synchronmotor 117 verzögert. Ist fb kleiner als f" (Filmband läuft zu langsam), so wird der Synchronmotor 111 beschleunigt. Die Nachsteuerung erfolgt jeweils so lange, bis fb gleich f" ist.If fb is greater than f "(film tape is running too fast), the synchronous motor is activated 117 delayed. If fb is smaller than f "(film tape runs too slowly), the synchronous motor is activated 111 accelerated. The readjustment takes place until fb equals f ".

Bei anderen Ausführungsbeispielen der Erfindung erfolgt die Abtastung der Perforation gleichzeitig durch mehrere Fotozellen, die beliebig angeordnet und geschaltet sein können. Bei einem Magnetfilm kann die Perforation auch durch Magnetköpfe abgetastet werden, wenn der Rand des Magnetfilms vorher magnetisiert wird.In other embodiments of the invention, the sampling is done the perforation at the same time by several photocells, which can be arranged and can be switched. In the case of a magnetic film, the perforation can also be made by magnetic heads can be scanned when the edge of the magnetic film is magnetized beforehand.

Die von der Perforation abgetastete Frequenz kann in bekannter Weise auf nicht perforierte Magnetbänder als »elektrische Perforation« aufgezeichnet werden.The frequency scanned by the perforation can be determined in a known manner recorded on imperforate magnetic tapes as "electrical perforation".

Claims (5)

PATENTANSPRÜCHE: 1. Synchronisierungseinrichtung für perforiertA Filmbänder unter Verwendung eines Laufwerkes ohne Zahntrommel, dadurch gekennzeichnet, daß die Filmperforation elektrisch abgetastet und die daraus gewonnene elektrische Größe zur Nachsteuerung des Antriebsmotors benutzt wird. PATENT CLAIMS: 1. Synchronization device for perforated A film tapes using a drive without a toothed drum, characterized in that the film perforation is scanned electrically and the electrical quantity obtained therefrom is used to readjust the drive motor. 2. Synchronisierungseinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Abtastung der Perforation durch eine oder mehrere Fotozellen erfolgt. 2. Synchronization facility according to claim 1, characterized in that the perforation is scanned by one or more photocells occurs. 3. Synchronisierungseinrichtung nachAnspruch 1 und 2, dadurch gekennzeichnet, daß die Lichtquelle für die Fotozelle im Rhythmus der Vergleichsfrequenz aufleuchtet. 3. Synchronization device according to claim 1 and 2, characterized in that the light source for the photocell in rhythm the comparison frequency lights up. 4. Synchronisierurigseinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Abta:stung der Perforation durch einen oder mehrere Magnetköpfe erfolgt. 4. Synchronisierurigseinrichtung according to claim 1, characterized in that the Abta: stung the perforation by one or more Magnetic heads takes place. 5. Synchronisierungseinrichtung nach Anspruch 1, dadurch, gekennzeichnet, daß die durch die Abtastung der Perforation gewonnene elektrische Größe auf andere Bänder aufgezeichnet oder zum Steuern anderer Geräte benutzt wird..5. Synchronization device according to claim 1, characterized in that that the electrical quantity obtained by scanning the perforation on others Tapes or used to control other devices.
DEA27891A 1957-09-12 1957-09-12 Synchronization device for perforated film strips using a drive without a toothed drum Pending DE1045797B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA27891A DE1045797B (en) 1957-09-12 1957-09-12 Synchronization device for perforated film strips using a drive without a toothed drum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA27891A DE1045797B (en) 1957-09-12 1957-09-12 Synchronization device for perforated film strips using a drive without a toothed drum

Publications (1)

Publication Number Publication Date
DE1045797B true DE1045797B (en) 1958-12-04

Family

ID=6926509

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA27891A Pending DE1045797B (en) 1957-09-12 1957-09-12 Synchronization device for perforated film strips using a drive without a toothed drum

Country Status (1)

Country Link
DE (1) DE1045797B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1148138B (en) * 1961-05-09 1963-05-02 Helmut Lux Process for the fully automatic operation of related, separately installed image and sound recording devices with simultaneous synchronization and marking of the starting points and scene sequences by radio technology
DE1197928B (en) * 1961-06-14 1965-08-05 Telefunken Patent Control device in magnetic tape devices
DE1231452B (en) * 1961-04-21 1966-12-29 Satoshi Kawauchi Tape drive for tape recorders
DE1280388B (en) * 1961-10-13 1968-10-17 Standard Elektrik Lorenz Ag Drive controllable by synchronization pulses
DE1297368B (en) * 1959-10-22 1969-06-12 Abadie Jacques Arrangement for the automatic restoration of the synchronous run that has been lost due to external circumstances between a driven endless control belt and a machine, system or the like to be cyclically controlled step by step by this.
DE3325226A1 (en) * 1983-07-13 1985-01-24 Claudio Dipl.-Ing. 4130 Moers Möller Method and device for measuring and/or controlling preferably slow movements, e.g. for controlling the feedrate of recording paper

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1297368B (en) * 1959-10-22 1969-06-12 Abadie Jacques Arrangement for the automatic restoration of the synchronous run that has been lost due to external circumstances between a driven endless control belt and a machine, system or the like to be cyclically controlled step by step by this.
DE1231452B (en) * 1961-04-21 1966-12-29 Satoshi Kawauchi Tape drive for tape recorders
DE1148138B (en) * 1961-05-09 1963-05-02 Helmut Lux Process for the fully automatic operation of related, separately installed image and sound recording devices with simultaneous synchronization and marking of the starting points and scene sequences by radio technology
DE1197928B (en) * 1961-06-14 1965-08-05 Telefunken Patent Control device in magnetic tape devices
DE1280388B (en) * 1961-10-13 1968-10-17 Standard Elektrik Lorenz Ag Drive controllable by synchronization pulses
DE3325226A1 (en) * 1983-07-13 1985-01-24 Claudio Dipl.-Ing. 4130 Moers Möller Method and device for measuring and/or controlling preferably slow movements, e.g. for controlling the feedrate of recording paper

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