CH225592A - Method for eliminating amplitude fluctuations in magnetic sound recording. - Google Patents

Method for eliminating amplitude fluctuations in magnetic sound recording.

Info

Publication number
CH225592A
CH225592A CH225592DA CH225592A CH 225592 A CH225592 A CH 225592A CH 225592D A CH225592D A CH 225592DA CH 225592 A CH225592 A CH 225592A
Authority
CH
Switzerland
Prior art keywords
sound recording
amplitude fluctuations
magnetic sound
eliminating amplitude
eliminating
Prior art date
Application number
Other languages
German (de)
Inventor
Licentia Patent-Verwaltungs-Gesellschaft Mit Beschraenkter Haftung
Original Assignee
Licentia 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
Application filed by Licentia Gmbh filed Critical Licentia Gmbh
Publication of CH225592A publication Critical patent/CH225592A/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0262—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic
    • F16H61/0274—Control units where shifting is directly initiated by the driver, e.g. semi-automatic transmissions
    • 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
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/34—Means for automatic focusing therefor
    • G03B27/36—Means for automatic focusing therefor by mechanical connections, e.g. by cam, by linkage
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G19/00—Servo-mechanisms with follow-up action, e.g. occurring in steps
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
    • 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
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2708/00—Control devices for speed-changing geared mechanisms, e.g. specially adapted couplings for synchronising devices, devices to simplify control, control of auxiliary gearboxes
    • F16H2708/24—Control devices for speed-changing geared mechanisms, e.g. specially adapted couplings for synchronising devices, devices to simplify control, control of auxiliary gearboxes with a preselection system, mainly semi-automatic, e.g. with automatic preselection, but controlled at the intended moment, with force amplification

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
CH225592D 1941-07-09 1942-05-23 Method for eliminating amplitude fluctuations in magnetic sound recording. CH225592A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE90741X 1941-07-09

Publications (1)

Publication Number Publication Date
CH225592A true CH225592A (en) 1943-02-15

Family

ID=5643370

Family Applications (4)

Application Number Title Priority Date Filing Date
CH226241D CH226241A (en) 1941-07-09 1942-04-11 Magnifier with forced focusing.
CH225592D CH225592A (en) 1941-07-09 1942-05-23 Method for eliminating amplitude fluctuations in magnetic sound recording.
CH226296D CH226296A (en) 1941-07-09 1942-06-16 Mechanical power amplifier for actuating the control device of a controllable transmission.
CH226295D CH226295A (en) 1941-07-09 1942-06-16 Electromechanical drive device for converting the forces and movements of the sensing means of a sensing device into larger forces and larger movements of a control shaft.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CH226241D CH226241A (en) 1941-07-09 1942-04-11 Magnifier with forced focusing.

Family Applications After (2)

Application Number Title Priority Date Filing Date
CH226296D CH226296A (en) 1941-07-09 1942-06-16 Mechanical power amplifier for actuating the control device of a controllable transmission.
CH226295D CH226295A (en) 1941-07-09 1942-06-16 Electromechanical drive device for converting the forces and movements of the sensing means of a sensing device into larger forces and larger movements of a control shaft.

Country Status (3)

Country Link
BE (1) BE446078A (en)
CH (4) CH226241A (en)
FR (1) FR882888A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2645682A (en) * 1947-09-12 1953-07-14 Brush Dev Co Magnetic recording and reproducing
US2816174A (en) * 1952-04-26 1957-12-10 Rca Corp Magnetic compression system
US2718161A (en) * 1953-03-09 1955-09-20 Bendix Aviat Corp Two speed transmission actuated by reversal of drive shaft
US2870270A (en) * 1954-02-08 1959-01-20 Nagai Kenzo Magnetic reproducing systems
DE1116012B (en) * 1954-02-26 1961-10-26 Lufttechnische Ges M B H Device for starting up the second of two temporarily coupled machines

Also Published As

Publication number Publication date
CH226295A (en) 1943-03-31
CH226241A (en) 1943-03-31
CH226296A (en) 1943-03-31
FR882888A (en) 1943-06-17
BE446078A (en)

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