JPS561820B2 - - Google Patents
Info
- Publication number
- JPS561820B2 JPS561820B2 JP3753473A JP3753473A JPS561820B2 JP S561820 B2 JPS561820 B2 JP S561820B2 JP 3753473 A JP3753473 A JP 3753473A JP 3753473 A JP3753473 A JP 3753473A JP S561820 B2 JPS561820 B2 JP S561820B2
- Authority
- JP
- Japan
- 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
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24207372A | 1972-04-07 | 1972-04-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4948206A JPS4948206A (cg-RX-API-DMAC7.html) | 1974-05-10 |
| JPS561820B2 true JPS561820B2 (cg-RX-API-DMAC7.html) | 1981-01-16 |
Family
ID=22913337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3753473A Expired JPS561820B2 (cg-RX-API-DMAC7.html) | 1972-04-07 | 1973-04-03 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3798377A (cg-RX-API-DMAC7.html) |
| JP (1) | JPS561820B2 (cg-RX-API-DMAC7.html) |
| BE (1) | BE797716A (cg-RX-API-DMAC7.html) |
| CA (1) | CA1014625A (cg-RX-API-DMAC7.html) |
| DE (1) | DE2317338A1 (cg-RX-API-DMAC7.html) |
| FR (1) | FR2179032B1 (cg-RX-API-DMAC7.html) |
| GB (1) | GB1417884A (cg-RX-API-DMAC7.html) |
| IT (1) | IT983642B (cg-RX-API-DMAC7.html) |
| NL (1) | NL178381C (cg-RX-API-DMAC7.html) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5343242B2 (cg-RX-API-DMAC7.html) * | 1973-03-19 | 1978-11-17 | ||
| JPS5822892B2 (ja) * | 1974-02-25 | 1983-05-12 | ソニー株式会社 | ４ チヤンネルステレオゴウセイシンゴウノ ハンベツカイロ |
| JPS5175105U (cg-RX-API-DMAC7.html) * | 1974-12-09 | 1976-06-12 | ||
| JPS589615B2 (ja) * | 1974-12-16 | 1983-02-22 | ソニー株式会社 | Ｆｍ ステレオフクチヨウホウシキ |
| FR2310672A1 (fr) * | 1975-05-07 | 1976-12-03 | Emv Elektromechanikai Vallalat | Dispositif pour la realisation d'une transmission tetraphonique compatible au moyen de sources sonores virtuelles |
| US4061882A (en) * | 1976-08-13 | 1977-12-06 | Quadracast Systems, Inc. | Quadrature multiplying four-channel demodulator |
| JPS61179338A (ja) * | 1985-02-01 | 1986-08-12 | 旭化成株式会社 | 布製袋体 |
| CA2054062A1 (en) * | 1990-12-11 | 1992-06-12 | William J. Simpson | Clay liner for steep slopes |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3283079A (en) * | 1964-07-14 | 1966-11-01 | Collins Radio Co | Phase control network for a stereophonic system |
| US3584154A (en) * | 1968-06-17 | 1971-06-08 | Clarence Hunter Mcshan | Stereo multiplex decoding system with a phase locked loop switching signal control |
| CA997000A (en) * | 1969-12-29 | 1976-09-14 | Allen L. Limberg | Multiplex decoding system |
| CA1021852A (en) * | 1970-02-25 | 1977-11-29 | Louis Dorren | Compatible four channel fm system |
| US3708623A (en) * | 1970-04-29 | 1973-01-02 | Quadracast Syst Inc | Compatible four channel fm system |
| JPS4838001A (cg-RX-API-DMAC7.html) * | 1971-09-15 | 1973-06-05 | ||
| CA984007A (en) * | 1971-09-21 | 1976-02-17 | Antal Csicsatka | Four channel stereophonic system |
| BE811207A (fr) * | 1973-02-21 | 1974-06-17 | Decodeur pour signal de modulation de frequence a plusieurs canaux |
-
1972
- 1972-04-07 US US00242073A patent/US3798377A/en not_active Expired - Lifetime
-
1973
- 1973-03-05 CA CA165,523A patent/CA1014625A/en not_active Expired
- 1973-03-23 GB GB1422173A patent/GB1417884A/en not_active Expired
- 1973-03-30 NL NLAANVRAGE7304448,A patent/NL178381C/xx not_active IP Right Cessation
- 1973-04-03 IT IT22541/73A patent/IT983642B/it active
- 1973-04-03 FR FR7311917A patent/FR2179032B1/fr not_active Expired
- 1973-04-03 JP JP3753473A patent/JPS561820B2/ja not_active Expired
- 1973-04-03 DE DE2317338A patent/DE2317338A1/de not_active Ceased
- 1973-04-03 BE BE129596A patent/BE797716A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NL7304448A (cg-RX-API-DMAC7.html) | 1973-10-09 |
| GB1417884A (en) | 1975-12-17 |
| CA1014625A (en) | 1977-07-26 |
| DE2317338A1 (de) | 1973-10-18 |
| NL178381B (nl) | 1985-10-01 |
| FR2179032A1 (cg-RX-API-DMAC7.html) | 1973-11-16 |
| BE797716A (fr) | 1973-07-31 |
| FR2179032B1 (cg-RX-API-DMAC7.html) | 1978-09-08 |
| NL178381C (nl) | 1986-03-03 |
| US3798377A (en) | 1974-03-19 |
| JPS4948206A (cg-RX-API-DMAC7.html) | 1974-05-10 |
| IT983642B (it) | 1974-11-11 |