JPS5140442B2 - - Google Patents
Info
- Publication number
- JPS5140442B2 JPS5140442B2 JP50052132A JP5213275A JPS5140442B2 JP S5140442 B2 JPS5140442 B2 JP S5140442B2 JP 50052132 A JP50052132 A JP 50052132A JP 5213275 A JP5213275 A JP 5213275A JP S5140442 B2 JPS5140442 B2 JP S5140442B2
- 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
- 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)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Algebra (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Stereophonic System (AREA)
- Stereo-Broadcasting Methods (AREA)
- Fuel Cell (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11216871A | 1971-02-03 | 1971-02-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS50152701A JPS50152701A (de) | 1975-12-09 |
| JPS5140442B2 true JPS5140442B2 (de) | 1976-11-04 |
Family
ID=22342450
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP47011924A Pending JPS5110961B1 (de) | 1971-02-03 | 1972-02-03 | |
| JP50052132A Expired JPS5140442B2 (de) | 1971-02-03 | 1975-05-01 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP47011924A Pending JPS5110961B1 (de) | 1971-02-03 | 1972-02-03 |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3745252A (de) |
| JP (2) | JPS5110961B1 (de) |
| BE (1) | BE778296A (de) |
| CA (1) | CA974887A (de) |
| DE (1) | DE2204098C3 (de) |
| FR (1) | FR2124264A1 (de) |
| GB (2) | GB1385651A (de) |
| IL (1) | IL38277A (de) |
| IT (1) | IT948353B (de) |
| NL (1) | NL7200834A (de) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3911222A (en) * | 1970-12-09 | 1975-10-07 | Kenwood Corp | Method and a device for producing a 4-channel stereophonic sound field |
| US3787622A (en) * | 1971-02-05 | 1974-01-22 | Sansui Electric Co | Quadrasonic sound system for two channel transmission |
| USRE29171E (en) * | 1971-07-02 | 1977-04-05 | Sansui Electric Co., Ltd. | Multi-directional sound system |
| US3906156A (en) | 1971-10-06 | 1975-09-16 | Duane H Cooper | Signal matrixing for directional reproduction of sound |
| JPS4889702A (de) * | 1972-02-25 | 1973-11-22 | ||
| JPS5210364B2 (de) * | 1972-05-02 | 1977-03-23 | ||
| GB1416631A (en) * | 1972-05-30 | 1975-12-03 | Nippon Columbia | Discrete 4-channel stereo recording and/or reproducing system |
| JPS5332643B2 (de) * | 1972-06-06 | 1978-09-09 | ||
| JPS5246681B2 (de) * | 1972-12-29 | 1977-11-26 | ||
| JPS5248002B2 (de) * | 1973-09-18 | 1977-12-07 | ||
| EP1715538A1 (de) * | 2005-04-19 | 2006-10-25 | Nicholas M. Abson | Neue Materialien für alkalische Brennstoffzellen |
| EP1724861A1 (de) * | 2005-05-17 | 2006-11-22 | Nicholas M. Abson | Neue Materialien für alkalische Elektrolyseure und alkalische Brennstoffzellen |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3632886A (en) * | 1969-12-29 | 1972-01-04 | Peter Scheiber | Quadrasonic sound system |
-
1971
- 1971-02-03 US US00112168A patent/US3745252A/en not_active Expired - Lifetime
- 1971-12-01 IL IL38277A patent/IL38277A/xx unknown
- 1971-12-01 CA CA129,044A patent/CA974887A/en not_active Expired
-
1972
- 1972-01-20 BE BE778296A patent/BE778296A/xx unknown
- 1972-01-20 NL NL7200834A patent/NL7200834A/xx unknown
- 1972-01-25 FR FR7202454A patent/FR2124264A1/fr not_active Withdrawn
- 1972-01-27 IT IT47989/72A patent/IT948353B/it active
- 1972-01-28 DE DE2204098A patent/DE2204098C3/de not_active Expired
- 1972-02-02 GB GB497472A patent/GB1385651A/en not_active Expired
- 1972-02-03 JP JP47011924A patent/JPS5110961B1/ja active Pending
- 1972-07-11 GB GB497472A patent/GB1379846A/en not_active Expired
-
1975
- 1975-05-01 JP JP50052132A patent/JPS5140442B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE778296A (fr) | 1972-07-20 |
| DE2204098A1 (de) | 1972-08-17 |
| JPS50152701A (de) | 1975-12-09 |
| CA974887A (en) | 1975-09-23 |
| GB1379846A (en) | 1975-01-08 |
| FR2124264A1 (de) | 1972-09-22 |
| GB1385651A (en) | 1975-02-26 |
| DE2204098B2 (de) | 1978-02-09 |
| US3745252A (en) | 1973-07-10 |
| DE2204098C3 (de) | 1978-09-21 |
| JPS5110961B1 (de) | 1976-04-08 |
| IL38277A0 (en) | 1972-02-29 |
| NL7200834A (de) | 1972-08-07 |
| IL38277A (en) | 1974-05-16 |
| IT948353B (it) | 1973-05-30 |