[go: up one dir, main page]

FR942217A - Device for magnetic recording of electrical impulses and in particular of sounds - Google Patents

Device for magnetic recording of electrical impulses and in particular of sounds

Info

Publication number
FR942217A
FR942217A FR942217DA FR942217A FR 942217 A FR942217 A FR 942217A FR 942217D A FR942217D A FR 942217DA FR 942217 A FR942217 A FR 942217A
Authority
FR
France
Prior art keywords
sounds
magnetic recording
electrical impulses
impulses
electrical
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.)
DAPHNE INVEST TRUST
Original Assignee
DAPHNE INVEST TRUST
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 DAPHNE INVEST TRUST filed Critical DAPHNE INVEST TRUST
Application granted granted Critical
Publication of FR942217A publication Critical patent/FR942217A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20Driving; Starting; Stopping; Control thereof
    • 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
FR942217D 1946-11-01 1947-02-21 Device for magnetic recording of electrical impulses and in particular of sounds Expired FR942217A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH942217X 1946-11-01

Publications (1)

Publication Number Publication Date
FR942217A true FR942217A (en) 1949-02-02

Family

ID=4549499

Family Applications (1)

Application Number Title Priority Date Filing Date
FR942217D Expired FR942217A (en) 1946-11-01 1947-02-21 Device for magnetic recording of electrical impulses and in particular of sounds

Country Status (2)

Country Link
BE (1) BE472107A (en)
FR (1) FR942217A (en)

Also Published As

Publication number Publication date
BE472107A (en)

Similar Documents

Publication Publication Date Title
FR1187616A (en) Electrostatic recording and reproducing device
FR1114436A (en) Improvements in techniques and devices using the properties of spin for the production of pulses generated by echo
FR996350A (en) Centimeter wave amplifier device
CH292122A (en) Magnetic sound recording and reproduction device.
FR942217A (en) Device for magnetic recording of electrical impulses and in particular of sounds
FR1064720A (en) Device for magnetic recording and accumulation of data
FR948451A (en) Sound recording and reproduction device
FR1036552A (en) Method and device for magnetic recording of electrical pulses and in particular of sounds
FR942023A (en) Method and device for recording and reproducing electrical impulses and in particular sounds
FR929570A (en) Sound recording and reproduction device
FR1002499A (en) Improvements in electrical pulse analysis and recording devices
FR1044537A (en) Training device in sound recording and reproducing devices
FR953333A (en) Sound recording and reproduction device
FR941775A (en) Device for recording and reproducing television broadcasts
FR939589A (en) Device for the use and reproduction of electro-optically reproducible sound recordings
FR1039206A (en) Advanced electromagnetic sound recording and reproduction device
FR1102450A (en) High voltage electrical device or group of devices
FR1044419A (en) Electronic recording device
FR1044562A (en) Electrical signal detection and amplification device
FR986558A (en) Sound recording and reproduction device
CA443504A (en) Recording and counting device
FR927050A (en) Control and recording device
FR935650A (en) Sound recording device
FR1035669A (en) Device for local anesthesia and in particular dental anesthesia
AU130741B2 (en) Improvements in or relating to electrical sound reproducing and/or recording devices