JPS4849401A - - Google Patents
Info
- Publication number
- JPS4849401A JPS4849401A JP47024794A JP2479472A JPS4849401A JP S4849401 A JPS4849401 A JP S4849401A JP 47024794 A JP47024794 A JP 47024794A JP 2479472 A JP2479472 A JP 2479472A JP S4849401 A JPS4849401 A JP S4849401A
- 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.)
- Granted
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)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00124135A US3821471A (en) | 1971-03-15 | 1971-03-15 | Apparatus for reproducing quadraphonic sound |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4849401A true JPS4849401A (de) | 1973-07-12 |
| JPS5110962B2 JPS5110962B2 (de) | 1976-04-08 |
Family
ID=22412987
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP47024794A Expired JPS5110962B2 (de) | 1971-03-15 | 1972-03-13 | |
| JP8911275A Expired JPS5316281B2 (de) | 1971-03-15 | 1975-07-21 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8911275A Expired JPS5316281B2 (de) | 1971-03-15 | 1975-07-21 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3821471A (de) |
| JP (2) | JPS5110962B2 (de) |
| BE (2) | BE780710R (de) |
| CA (1) | CA978860A (de) |
| DE (1) | DE2209424C3 (de) |
| FR (2) | FR2130305B2 (de) |
| GB (1) | GB1387874A (de) |
| NL (1) | NL7203169A (de) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5645358B2 (de) * | 1973-11-29 | 1981-10-26 | ||
| JPS5424841B2 (de) * | 1974-02-26 | 1979-08-24 | ||
| GB1514162A (en) * | 1974-03-25 | 1978-06-14 | Ruggles W | Directional enhancement system for quadraphonic decoders |
| US3937885A (en) * | 1974-09-06 | 1976-02-10 | Motorola, Inc. | Control circuit for a matrixed four channel audio reproducing system |
| US4018992A (en) * | 1975-09-25 | 1977-04-19 | Clifford H. Moulton | Decoder for quadraphonic playback |
| GB1550627A (en) * | 1975-11-13 | 1979-08-15 | Nat Res Dev | Sound reproduction systems |
| JPS5827645B2 (ja) * | 1977-11-24 | 1983-06-10 | 株式会社日立製作所 | 静止誘導機器 |
| US4941177A (en) * | 1985-03-07 | 1990-07-10 | Dolby Laboratories Licensing Corporation | Variable matrix decoder |
| US4799260A (en) * | 1985-03-07 | 1989-01-17 | Dolby Laboratories Licensing Corporation | Variable matrix decoder |
| US5046098A (en) * | 1985-03-07 | 1991-09-03 | Dolby Laboratories Licensing Corporation | Variable matrix decoder with three output channels |
| US7251337B2 (en) * | 2003-04-24 | 2007-07-31 | Dolby Laboratories Licensing Corporation | Volume control in movie theaters |
| KR101133944B1 (ko) * | 2004-06-28 | 2012-04-13 | 아지노모토 가부시키가이샤 | 영양 조성물 및 소화관 기능 저하 예방?개선용 조성물 |
| JP4835298B2 (ja) * | 2006-07-21 | 2011-12-14 | ソニー株式会社 | オーディオ信号処理装置、オーディオ信号処理方法およびプログラム |
| US11039263B2 (en) * | 2019-05-29 | 2021-06-15 | Mark Petrouske | Wide effect sound producing method |
-
1971
- 1971-03-15 US US00124135A patent/US3821471A/en not_active Expired - Lifetime
-
1972
- 1972-01-28 CA CA133,379A patent/CA978860A/en not_active Expired
- 1972-02-23 GB GB841272A patent/GB1387874A/en not_active Expired
- 1972-02-28 DE DE2209424A patent/DE2209424C3/de not_active Expired
- 1972-03-09 NL NL7203169A patent/NL7203169A/xx not_active Application Discontinuation
- 1972-03-13 JP JP47024794A patent/JPS5110962B2/ja not_active Expired
- 1972-03-15 BE BE780710A patent/BE780710R/xx active
- 1972-03-15 FR FR7209093A patent/FR2130305B2/fr not_active Expired
- 1972-03-15 BE BE780711A patent/BE780711R/xx active
- 1972-03-15 FR FR7209094A patent/FR2130306B2/fr not_active Expired
-
1975
- 1975-07-21 JP JP8911275A patent/JPS5316281B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1387874A (en) | 1975-03-19 |
| NL7203169A (de) | 1972-09-19 |
| JPS5316281B2 (de) | 1978-05-31 |
| JPS5136903A (de) | 1976-03-29 |
| FR2130305B2 (de) | 1979-04-27 |
| DE2209424B2 (de) | 1978-01-26 |
| FR2130305A2 (de) | 1972-11-03 |
| FR2130306B2 (de) | 1977-12-23 |
| BE780710R (fr) | 1972-09-15 |
| DE2209424C3 (de) | 1978-09-28 |
| US3821471A (en) | 1974-06-28 |
| DE2209424A1 (de) | 1972-09-28 |
| JPS5110962B2 (de) | 1976-04-08 |
| FR2130306A2 (de) | 1972-11-03 |
| BE780711R (fr) | 1972-09-15 |
| CA978860A (en) | 1975-12-02 |