FI811642A7 - A device for generating a multichannel signal from a stereo signal. - Google Patents

A device for generating a multichannel signal from a stereo signal. Download PDF

Info

Publication number: FI811642A7
Authority: FI; Finland
Prior art keywords: signal; generating; multichannel; stereo; stereo signal
Prior art date: 1981-05-28

Application number

FI811642A

Other languages

Finnish (fi)

Swedish (sv)

Other versions

FI811642A0 (en

Inventor

Pekka Helkama

Original Assignee

Pekka Helkama

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.)

1981-05-28

Filing date

1981-05-28

Publication date

1982-11-29

1981-05-28 Publication of FI811642A0 publication Critical patent/FI811642A0/en

1981-05-28 Priority to FI811642A priority Critical patent/FI811642A7/en

1981-05-28 Application filed by Pekka Helkama filed Critical Pekka Helkama

1981-10-29 Priority to SE8106400A priority patent/SE451045B/en

1981-11-13 Priority to DK502681A priority patent/DK502681A/en

1981-11-25 Priority to NO814018A priority patent/NO814018L/en

1981-12-01 Priority to DE19813147580 priority patent/DE3147580A1/en

1981-12-04 Priority to ES507757A priority patent/ES507757A0/en

1981-12-18 Priority to NL8105725A priority patent/NL8105725A/en

1981-12-24 Priority to JP56216136A priority patent/JPS57196700A/en

1981-12-29 Priority to FR8124371A priority patent/FR2507049A1/en

1982-04-05 Priority to GB8209998A priority patent/GB2099665B/en

1982-11-29 Publication of FI811642A7 publication Critical patent/FI811642A7/en

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Stereophonic System (AREA)
Stereo-Broadcasting Methods (AREA)
Circuits Of Receivers In General (AREA)

FI811642A 1981-04-06 1981-05-28 A device for generating a multichannel signal from a stereo signal. FI811642A7 (en)

Priority Applications (10)

Application Number	Priority Date	Filing Date	Title
FI811642A FI811642A7 (en)	1981-05-28	1981-05-28	A device for generating a multichannel signal from a stereo signal.
SE8106400A SE451045B (en)	1981-05-28	1981-10-29	AUDIO DEVICE FOR VIEWING MULTI-CHANNEL SOUND OF ONE PAIR OF SOUND CHANNELS
DK502681A DK502681A (en)	1981-05-28	1981-11-13	Apparatus for generating a multi-channel signal from a stereo signal
NO814018A NO814018L (en)	1981-05-28	1981-11-25	DEVICE FOR CREATING A MULTI-CHANNEL SIGNAL FROM A STEREO SIGNAL.
DE19813147580 DE3147580A1 (en)	1981-05-28	1981-12-01	Arrangement for forming a multi-channel signal from a stereo signal
ES507757A ES507757A0 (en)	1981-05-28	1981-12-04	A DEVICE TO PRODUCE A MULTI-CHANNEL SIGNAL FROM A STEREO SIGNAL.
NL8105725A NL8105725A (en)	1981-05-28	1981-12-18	DEVICE FOR GENERATING A MULTI-CHANNEL SIGNAL FROM A STEREO SIGNAL
JP56216136A JPS57196700A (en)	1981-05-28	1981-12-24	Multichannel acoustic signal generator
FR8124371A FR2507049A1 (en)	1981-05-28	1981-12-29	DEVICE FOR PRODUCING A SIGNAL ON MULTIPLE CHANNELS FROM A STEREOPHONIC SIGNAL
GB8209998A GB2099665B (en)	1981-04-06	1982-04-05	Dividing circuits

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FI811642A FI811642A7 (en)	1981-05-28	1981-05-28	A device for generating a multichannel signal from a stereo signal.

Publications (2)

Publication Number	Publication Date
FI811642A0 FI811642A0 (en)	1981-05-28
FI811642A7 true FI811642A7 (en)	1982-11-29

Family

ID=8514435

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI811642A FI811642A7 (en)	1981-04-06	1981-05-28	A device for generating a multichannel signal from a stereo signal.

Country Status (9)

Country	Link
JP (1)	JPS57196700A (en)
DE (1)	DE3147580A1 (en)
DK (1)	DK502681A (en)
ES (1)	ES507757A0 (en)
FI (1)	FI811642A7 (en)
FR (1)	FR2507049A1 (en)
NL (1)	NL8105725A (en)
NO (1)	NO814018L (en)
SE (1)	SE451045B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
HU190912B (en) *	1983-09-07	1986-12-28	Polyak,Gabor,Hu	Method and apparatus for making stereoscopic sound effects
ES2097078B1 (en) *	1994-01-24	1997-11-16	Paya Rafael Duyos	PROCEDURE AND EQUIPMENT FOR SOUND RECEPTION AND PLAYBACK FOR AUDITION ROOMS, THEATERS AND THE LIKE.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS515762A (en) *	1974-07-05	1976-01-17	Hitachi Ltd	KAKAJUBOSHISOCHI
JPS5526561Y2 (en) *	1974-09-26	1980-06-26
DE2837130C2 (en) *	1978-08-25	1984-06-28	Paul Dipl.-Ing. Dr.-Ing. 5100 Aachen Scherer	Device for recording and playing back spatial sound events

1981
- 1981-05-28 FI FI811642A patent/FI811642A7/en not_active Application Discontinuation
- 1981-10-29 SE SE8106400A patent/SE451045B/en not_active IP Right Cessation
- 1981-11-13 DK DK502681A patent/DK502681A/en not_active Application Discontinuation
- 1981-11-25 NO NO814018A patent/NO814018L/en unknown
- 1981-12-01 DE DE19813147580 patent/DE3147580A1/en not_active Withdrawn
- 1981-12-04 ES ES507757A patent/ES507757A0/en active Granted
- 1981-12-18 NL NL8105725A patent/NL8105725A/en not_active Application Discontinuation
- 1981-12-24 JP JP56216136A patent/JPS57196700A/en active Pending
- 1981-12-29 FR FR8124371A patent/FR2507049A1/en active Pending

Also Published As

Publication number	Publication date
ES8302991A1 (en)	1983-01-16
FR2507049A1 (en)	1982-12-03
DK502681A (en)	1982-11-29
SE8106400L (en)	1982-11-29
ES507757A0 (en)	1983-01-16
DE3147580A1 (en)	1982-12-16
JPS57196700A (en)	1982-12-02
FI811642A0 (en)	1981-05-28
NO814018L (en)	1982-11-29
SE451045B (en)	1987-08-24
NL8105725A (en)	1982-12-16

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Legal Events

Date	Code	Title	Description
2004-08-31	FC	Application refused	Owner name: HELKAMA, PEKKA