FR920542A - Improvements to magnetic recording and reproduction devices - Google Patents
Improvements to magnetic recording and reproduction devicesInfo
- Publication number
- FR920542A FR920542A FR920542DA FR920542A FR 920542 A FR920542 A FR 920542A FR 920542D A FR920542D A FR 920542DA FR 920542 A FR920542 A FR 920542A
- Authority
- FR
- France
- Prior art keywords
- magnetic recording
- reproduction devices
- reproduction
- devices
- recording
- 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
- G11B5/027—Analogue recording
- G11B5/03—Biasing
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR920542T | 1946-01-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR920542A true FR920542A (en) | 1947-04-10 |
Family
ID=9429466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR920542D Expired FR920542A (en) | 1946-01-21 | 1946-01-21 | Improvements to magnetic recording and reproduction devices |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR920542A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE872657C (en) * | 1951-09-04 | 1953-04-02 | Hermann Birkhofer | Magnetic head for making magnetic sound recordings |
DE925318C (en) * | 1950-04-12 | 1955-03-17 | Telefunken Gmbh | Arrangement for the premagnetization of sound writing carriers for magnetic sound recordings |
DE1016955B (en) * | 1953-08-27 | 1957-10-03 | Telefunken Gmbh | Erase head with two columns for magnetic sound recordings |
DE972735C (en) * | 1950-08-13 | 1959-09-17 | Klangfilm Gmbh | Recording magnetic head for magnetic recorders with high frequency overlay |
DE976859C (en) * | 1951-01-17 | 1964-06-23 | Philips Nv | Method for producing magnetic recordings on a tape or wire-shaped carrier |
-
1946
- 1946-01-21 FR FR920542D patent/FR920542A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE925318C (en) * | 1950-04-12 | 1955-03-17 | Telefunken Gmbh | Arrangement for the premagnetization of sound writing carriers for magnetic sound recordings |
DE972735C (en) * | 1950-08-13 | 1959-09-17 | Klangfilm Gmbh | Recording magnetic head for magnetic recorders with high frequency overlay |
DE976859C (en) * | 1951-01-17 | 1964-06-23 | Philips Nv | Method for producing magnetic recordings on a tape or wire-shaped carrier |
DE872657C (en) * | 1951-09-04 | 1953-04-02 | Hermann Birkhofer | Magnetic head for making magnetic sound recordings |
DE1016955B (en) * | 1953-08-27 | 1957-10-03 | Telefunken Gmbh | Erase head with two columns for magnetic sound recordings |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR987370A (en) | Improvements to magnetic amplifiers | |
FR984126A (en) | Magnetic amplifier | |
FR953561A (en) | Improvements to amplifiers and / or magnetic converters | |
FR1029009A (en) | Improvements to magnetic recording devices | |
FR920542A (en) | Improvements to magnetic recording and reproduction devices | |
FR1010023A (en) | Improvements to recording or graphic reproduction devices | |
FR1054084A (en) | Improvements to magnetic recording devices | |
FR985756A (en) | Improvements to magnetic amplifiers | |
FR937117A (en) | Improvement in multiple and simultaneous recording devices | |
FR949817A (en) | Improvements to record player devices | |
FR1000717A (en) | Improvements to sound recording and reproduction machines | |
FR926962A (en) | Improvements to sound recording and reproduction devices | |
FR60480E (en) | Improvements to magnetic recording devices | |
FR1019784A (en) | Improvements to magnetic recording devices | |
FR975949A (en) | Magnetic recording amplifier | |
FR926866A (en) | Improvements to sound recorders | |
FR976213A (en) | Magnetic recorder | |
FR60010E (en) | Improvements to recording or graphic reproduction devices | |
FR933791A (en) | Improvements to sound recording and reproduction heads | |
FR970283A (en) | Improvements to loudspeakers and electro-acoustic transformer devices | |
FR929570A (en) | Sound recording and reproduction device | |
FR943320A (en) | Improvement in magnetic sound recording and reproduction devices | |
FR1017233A (en) | Improvements to magnetic amplifier assemblies | |
FR980153A (en) | Magnetic recorder | |
FR972260A (en) | Improvements to magnetic substances |