DK70011C - Lydbærer til magnetisk optegning. - Google Patents
Lydbærer til magnetisk optegning.Info
- Publication number
- DK70011C DK70011C DK51642AA DK51642A DK70011C DK 70011 C DK70011 C DK 70011C DK 51642A A DK51642A A DK 51642AA DK 51642 A DK51642 A DK 51642A DK 70011 C DK70011 C DK 70011C
- Authority
- DK
- Denmark
- Prior art keywords
- magnetic recording
- sound carrier
- sound
- carrier
- recording
- Prior art date
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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
-
- 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 |
---|---|---|---|
DEB193741A DE743510C (de) | 1941-03-28 | 1941-03-28 | Magnetogrammtraeger |
Publications (1)
Publication Number | Publication Date |
---|---|
DK70011C true DK70011C (da) | 1949-10-03 |
Family
ID=43413972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK51642AA DK70011C (da) | 1941-03-28 | 1942-03-07 | Lydbærer til magnetisk optegning. |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH224248A (da) |
DE (1) | DE743510C (da) |
DK (1) | DK70011C (da) |
FR (1) | FR880559A (da) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2535480A (en) * | 1945-08-27 | 1950-12-26 | Brush Dev Co | Magnetic recording and reproducing |
US2604548A (en) * | 1946-12-05 | 1952-07-22 | Brush Dev Co | Apparatus for demagnetizing magnetic recording-reproducting heads |
US2672346A (en) * | 1946-12-21 | 1954-03-16 | Int Electronics Co | Office dictation and intercommunication system |
US2658956A (en) * | 1947-04-21 | 1953-11-10 | Clevite Corp | Magnetic recording and reproducing |
US2738383A (en) * | 1948-06-21 | 1956-03-13 | Minnesota Mining & Mfg | Method and apparatus for duplicating magnetic recordings and magnetic tape record members |
DE895063C (de) * | 1948-10-02 | 1953-10-29 | Siemens Ag | Anordnung zur elektromagnetischen Aufzeichnung |
US2735899A (en) * | 1948-10-02 | 1956-02-21 | Essel | |
US2747027A (en) * | 1948-11-05 | 1956-05-22 | Armour Res Found | Recording apparatus and method for making duplicate magnetic records |
US2723315A (en) * | 1948-11-05 | 1955-11-08 | Indiana Steel Products Co | Method and means for duplicating magnetic records by magnetic transfer phenomenon |
US2686229A (en) * | 1949-04-16 | 1954-08-10 | Rca Corp | Magnetic record copying |
DE849013C (de) * | 1950-05-27 | 1952-09-11 | Fritz Hammon | Verfahren zum Loeschen von Stoeraufzeichnungen in Magnetogrammen, die im aufgewickelten od. dgl. Zustand des Traegers durch Kontaktkopieren entstanden sind |
-
1941
- 1941-03-28 DE DEB193741A patent/DE743510C/de not_active Expired
-
1942
- 1942-03-06 CH CH224248D patent/CH224248A/de unknown
- 1942-03-07 DK DK51642AA patent/DK70011C/da active
- 1942-03-26 FR FR880559D patent/FR880559A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH224248A (de) | 1942-11-15 |
FR880559A (fr) | 1943-03-30 |
DE743510C (de) | 1943-12-28 |
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