DK48475C - Film med Lydskrift efter Amplitudemetoden og Fremgangsmaade til Fremstilling af saadanne Films. - Google Patents

Film med Lydskrift efter Amplitudemetoden og Fremgangsmaade til Fremstilling af saadanne Films.

Info

Publication number: DK48475C
Authority: DK; Denmark
Prior art keywords: saadanne; lydskrift; fremgangsmaade; amplitudemetoden; efter
Prior art date: 1931-12-01

Application number

Other languages

Danish (da)

Inventor

Axel Carl Georg Petersen

Arnold Poulsen

Original Assignee

Axel Carl Georg Petersen

Arnold Poulsen

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.)

1931-12-01

Filing date

1932-09-19

Publication date

1934-03-05

1932-09-19 Application filed by Axel Carl Georg Petersen, Arnold Poulsen filed Critical Axel Carl Georg Petersen

1934-03-05 Application granted granted Critical

1934-03-05 Publication of DK48475C publication Critical patent/DK48475C/en

Classifications

- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor

DK48475D 1931-12-01 1932-09-19 Film med Lydskrift efter Amplitudemetoden og Fremgangsmaade til Fremstilling af saadanne Films. DK48475C (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB3329831		1931-12-01
GB3329731A GB393610A (en)	1931-12-01	1931-12-01	Improvements in and relating to the recording of sound on films

Publications (1)

Publication Number	Publication Date
DK48475C true DK48475C (en)	1934-03-05

Family

ID=1803081

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK48475D DK48475C (en)	1931-12-01	1932-09-19	Film med Lydskrift efter Amplitudemetoden og Fremgangsmaade til Fremstilling af saadanne Films.

Country Status (6)

Country	Link
AT (1)	AT144556B (en)
CH (1)	CH167553A (en)
DE (1)	DE700267C (en)
DK (1)	DK48475C (en)
GB (1)	GB393610A (en)
NL (1)	NL42079C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE940377C (en) *	1932-04-09	1956-03-15	Telefunken Gmbh	Process for producing background noise-free optical sound recordings in multi-point script
DE746290C (en) *	1940-05-24	1944-06-15	Tobis Tonbild Syndikat G M B H	Optical sound film
US2937915A (en) *	1955-12-19	1960-05-24	United Geophysical Corp	Recording system

1931
- 1931-12-01 GB GB3329731A patent/GB393610A/en not_active Expired
1932
- 1932-09-19 DK DK48475D patent/DK48475C/en active
- 1932-10-14 DE DE1932P0066209 patent/DE700267C/en not_active Expired
- 1932-11-03 AT AT144556D patent/AT144556B/en active
- 1932-11-14 CH CH167553D patent/CH167553A/en unknown
- 1932-11-24 NL NL63314A patent/NL42079C/xx active

Also Published As

Publication number	Publication date
NL42079C (en)	1937-10-26
AT144556B (en)	1936-02-10
DE700267C (en)	1940-12-17
GB393610A (en)	1933-06-01
CH167553A (en)	1934-02-28

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