FR882888A - Method of eliminating variations in amplitude during magnetic sound recordings - Google Patents

Method of eliminating variations in amplitude during magnetic sound recordings

Info

Publication number
FR882888A
FR882888A FR882888DA FR882888A FR 882888 A FR882888 A FR 882888A FR 882888D A FR882888D A FR 882888DA FR 882888 A FR882888 A FR 882888A
Authority
FR
France
Prior art keywords
amplitude during
during magnetic
sound recordings
magnetic sound
eliminating variations
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
Other languages
French (fr)
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs 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 Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Application granted granted Critical
Publication of FR882888A publication Critical patent/FR882888A/en
Expired legal-status Critical Current

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
FR882888D 1941-07-09 1942-06-04 Method of eliminating variations in amplitude during magnetic sound recordings Expired FR882888A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR882888A true FR882888A (en) 1943-06-17

Family

ID=5643370

Family Applications (1)

Application Number Title Priority Date Filing Date
FR882888D Expired FR882888A (en) 1941-07-09 1942-06-04 Method of eliminating variations in amplitude during magnetic sound recordings

Country Status (3)

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

Cited By (3)

* 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
US2870270A (en) * 1954-02-08 1959-01-20 Nagai Kenzo Magnetic reproducing systems

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2718161A (en) * 1953-03-09 1955-09-20 Bendix Aviat Corp Two speed transmission actuated by reversal of drive shaft
DE1116012B (en) * 1954-02-26 1961-10-26 Lufttechnische Ges M B H Device for starting up the second of two temporarily coupled machines

Cited By (3)

* 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
US2870270A (en) * 1954-02-08 1959-01-20 Nagai Kenzo Magnetic reproducing systems

Also Published As

Publication number Publication date
CH226296A (en) 1943-03-31
BE446078A (en)
CH226295A (en) 1943-03-31
CH226241A (en) 1943-03-31
CH225592A (en) 1943-02-15

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