FR2141561B3 - - Google Patents
Info
- Publication number
- FR2141561B3 FR2141561B3 FR7121782A FR7121782A FR2141561B3 FR 2141561 B3 FR2141561 B3 FR 2141561B3 FR 7121782 A FR7121782 A FR 7121782A FR 7121782 A FR7121782 A FR 7121782A FR 2141561 B3 FR2141561 B3 FR 2141561B3
- Authority
- FR
- France
- Legal status (The legal status 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 status listed.)
- Expired
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7121782A FR2141561B3 (https=) | 1971-06-16 | 1971-06-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7121782A FR2141561B3 (https=) | 1971-06-16 | 1971-06-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2141561A1 FR2141561A1 (https=) | 1973-01-26 |
| FR2141561B3 true FR2141561B3 (https=) | 1974-04-26 |
Family
ID=9078733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7121782A Expired FR2141561B3 (https=) | 1971-06-16 | 1971-06-16 |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2141561B3 (https=) |
-
1971
- 1971-06-16 FR FR7121782A patent/FR2141561B3/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2141561A1 (https=) | 1973-01-26 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |