BE772298A - QUADRIPHONE RECORDING AND PLAYBACK SYSTEM - Google Patents
QUADRIPHONE RECORDING AND PLAYBACK SYSTEMInfo
- Publication number
- BE772298A BE772298A BE772298A BE772298A BE772298A BE 772298 A BE772298 A BE 772298A BE 772298 A BE772298 A BE 772298A BE 772298 A BE772298 A BE 772298A BE 772298 A BE772298 A BE 772298A
- Authority
- BE
- Belgium
- Prior art keywords
- quadriphone
- recording
- playback system
- playback
- quadriphone recording
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Algebra (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Stereophonic System (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8185870A | 1970-10-19 | 1970-10-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE772298A true BE772298A (en) | 1972-03-17 |
Family
ID=22166858
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE772298A BE772298A (en) | 1970-10-19 | 1971-09-07 | QUADRIPHONE RECORDING AND PLAYBACK SYSTEM |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE772298A (en) |
CA (1) | CA974457A (en) |
FR (1) | FR2109754A5 (en) |
GB (1) | GB1360411A (en) |
IL (1) | IL37872A (en) |
NL (1) | NL7108370A (en) |
-
1971
- 1971-06-17 NL NL7108370A patent/NL7108370A/xx unknown
- 1971-07-29 CA CA119,392A patent/CA974457A/en not_active Expired
- 1971-09-06 GB GB4151271A patent/GB1360411A/en not_active Expired
- 1971-09-07 BE BE772298A patent/BE772298A/en unknown
- 1971-09-08 FR FR7132479A patent/FR2109754A5/fr not_active Expired
- 1971-10-07 IL IL37872A patent/IL37872A/en unknown
Also Published As
Publication number | Publication date |
---|---|
NL7108370A (en) | 1972-04-21 |
CA974457A (en) | 1975-09-16 |
DE2139098A1 (en) | 1972-04-20 |
FR2109754A5 (en) | 1972-05-26 |
GB1360411A (en) | 1974-07-17 |
AU3214771A (en) | 1973-02-15 |
IL37872A0 (en) | 1971-12-29 |
DE2139098B2 (en) | 1976-11-25 |
IL37872A (en) | 1973-11-28 |
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