NL7212767A - - Google Patents
Info
- Publication number
- NL7212767A NL7212767A NL7212767A NL7212767A NL7212767A NL 7212767 A NL7212767 A NL 7212767A NL 7212767 A NL7212767 A NL 7212767A NL 7212767 A NL7212767 A NL 7212767A NL 7212767 A NL7212767 A NL 7212767A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/86—Arrangements characterised by the broadcast information itself
- H04H20/88—Stereophonic broadcast systems
- H04H20/89—Stereophonic broadcast systems using three or more audio channels, e.g. triphonic or quadraphonic
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Stereo-Broadcasting Methods (AREA)
- Stereophonic System (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18231871A | 1971-09-21 | 1971-09-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7212767A true NL7212767A (https=) | 1973-03-23 |
Family
ID=22667935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7212767A NL7212767A (https=) | 1971-09-21 | 1972-09-21 |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5416681B2 (https=) |
| KR (1) | KR780000452B1 (https=) |
| CA (1) | CA984007A (https=) |
| DE (1) | DE2246041A1 (https=) |
| FR (1) | FR2153359B1 (https=) |
| GB (1) | GB1391289A (https=) |
| NL (1) | NL7212767A (https=) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7304448A (https=) * | 1972-04-07 | 1973-10-09 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4989502A (https=) * | 1972-12-01 | 1974-08-27 | ||
| DE2415218A1 (de) * | 1974-03-29 | 1975-10-02 | Licentia Gmbh | Halbleiterdiode |
| FI844319A0 (fi) * | 1982-10-04 | 1984-11-02 | Stuart David Saunders | Signalupprepningsanordning. |
-
1972
- 1972-08-30 CA CA150,511A patent/CA984007A/en not_active Expired
- 1972-09-15 GB GB4284372A patent/GB1391289A/en not_active Expired
- 1972-09-20 DE DE2246041A patent/DE2246041A1/de not_active Ceased
- 1972-09-21 FR FR7233411A patent/FR2153359B1/fr not_active Expired
- 1972-09-21 JP JP9503472A patent/JPS5416681B2/ja not_active Expired
- 1972-09-21 KR KR7201435A patent/KR780000452B1/ko not_active Expired
- 1972-09-21 NL NL7212767A patent/NL7212767A/xx not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7304448A (https=) * | 1972-04-07 | 1973-10-09 | ||
| FR2179032A1 (https=) * | 1972-04-07 | 1973-11-16 | Quadracast Systems |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2246041A1 (de) | 1973-03-29 |
| JPS4841702A (https=) | 1973-06-18 |
| GB1391289A (en) | 1975-04-23 |
| JPS5416681B2 (https=) | 1979-06-25 |
| CA984007A (en) | 1976-02-17 |
| KR780000452B1 (en) | 1978-10-23 |
| FR2153359B1 (https=) | 1981-05-08 |
| FR2153359A1 (https=) | 1973-05-04 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BA | A request for search or an international-type search has been filed | ||
| BB | A search report has been drawn up | ||
| BC | A request for examination has been filed | ||
| BV | The patent application has lapsed |