BE768242A - QUADRIPHONE RECORDING AND PLAYBACK SYSTEM - Google Patents
QUADRIPHONE RECORDING AND PLAYBACK SYSTEMInfo
- Publication number
- BE768242A BE768242A BE768242A BE768242A BE768242A BE 768242 A BE768242 A BE 768242A BE 768242 A BE768242 A BE 768242A BE 768242 A BE768242 A BE 768242A BE 768242 A BE768242 A BE 768242A
- 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 SYSTEMSÂ
- 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)
- Stereo-Broadcasting Methods (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4422470A | 1970-06-08 | 1970-06-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE768242A true BE768242A (en) | 1971-12-08 |
Family
ID=21931168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE768242A BE768242A (en) | 1970-06-08 | 1971-06-08 | QUADRIPHONE RECORDING AND PLAYBACK SYSTEM |
Country Status (6)
Country | Link |
---|---|
JP (4) | JPS5017844B1 (en) |
BE (1) | BE768242A (en) |
CA (1) | CA989743A (en) |
FR (1) | FR2094123B1 (en) |
GB (1) | GB1347993A (en) |
NL (1) | NL161645C (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI3A (en) * | 1843-11-08 | Press members |
-
1971
- 1971-04-28 CA CA111,590A patent/CA989743A/en not_active Expired
- 1971-05-12 NL NL7106548A patent/NL161645C/en not_active IP Right Cessation
- 1971-06-07 JP JP3941471A patent/JPS5017844B1/ja active Pending
- 1971-06-08 FR FR7120765A patent/FR2094123B1/fr not_active Expired
- 1971-06-08 GB GB1948771A patent/GB1347993A/en not_active Expired
- 1971-06-08 BE BE768242A patent/BE768242A/en unknown
-
1974
- 1974-12-28 JP JP305875A patent/JPS5135841B2/ja not_active Expired
- 1974-12-28 JP JP753056A patent/JPS5111481B2/ja not_active Expired
- 1974-12-28 JP JP50003057A patent/JPS50132903A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
NL161645C (en) | 1980-02-15 |
JPS5017844B1 (en) | 1975-06-24 |
JPS50132903A (en) | 1975-10-21 |
FR2094123B1 (en) | 1976-05-28 |
NL7106548A (en) | 1971-12-10 |
DE2126432A1 (en) | 1972-03-02 |
DE2126432B2 (en) | 1976-02-19 |
JPS5111481B2 (en) | 1976-04-12 |
CA989743A (en) | 1976-05-25 |
JPS50132902A (en) | 1975-10-21 |
JPS5135841B2 (en) | 1976-10-05 |
NL161645B (en) | 1979-09-17 |
FR2094123A1 (en) | 1972-02-04 |
JPS50132904A (en) | 1975-10-21 |
GB1347993A (en) | 1974-02-27 |
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