JPS5210364B2 - - Google Patents
Info
- Publication number
- JPS5210364B2 JPS5210364B2 JP47043991A JP4399172A JPS5210364B2 JP S5210364 B2 JPS5210364 B2 JP S5210364B2 JP 47043991 A JP47043991 A JP 47043991A JP 4399172 A JP4399172 A JP 4399172A JP S5210364 B2 JPS5210364 B2 JP S5210364B2
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation
- H04S5/02—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals
-
- 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
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Stereophonic System (AREA)
- Stereo-Broadcasting Methods (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47043991A JPS5210364B2 (xx) | 1972-05-02 | 1972-05-02 | |
| GB2053473A GB1395477A (en) | 1972-05-02 | 1973-04-30 | Sound signal-converting apparatus for use in a four-channel stereophonic reproduction system |
| US355420A US3892918A (en) | 1972-05-02 | 1973-04-30 | Sound signal converting apparatus for use in a four channel stereophonic reproduction system |
| DE2322145A DE2322145C2 (de) | 1972-05-02 | 1973-05-02 | Tonsignalumsetzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47043991A JPS5210364B2 (xx) | 1972-05-02 | 1972-05-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS495601A JPS495601A (xx) | 1974-01-18 |
| JPS5210364B2 true JPS5210364B2 (xx) | 1977-03-23 |
Family
ID=12679170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP47043991A Expired JPS5210364B2 (xx) | 1972-05-02 | 1972-05-02 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3892918A (xx) |
| JP (1) | JPS5210364B2 (xx) |
| DE (1) | DE2322145C2 (xx) |
| GB (1) | GB1395477A (xx) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4915401A (xx) * | 1972-05-19 | 1974-02-09 | ||
| GB1494751A (en) * | 1974-03-26 | 1977-12-14 | Nat Res Dev | Sound reproduction systems |
| US3971890A (en) * | 1975-02-10 | 1976-07-27 | Cbs Inc. | Method and apparatus for quadraphonic enhancement of stereophonic signals |
| GB1550627A (en) * | 1975-11-13 | 1979-08-15 | Nat Res Dev | Sound reproduction systems |
| JPS61235498A (ja) * | 1981-01-26 | 1986-10-20 | エチル・ペトロレウム・アデイテイブス・インコーポレーテッド | 燃料および潤滑油用添加剤 |
| 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 |
| ES2127135B1 (es) * | 1997-04-23 | 1999-11-16 | Lera Jose Maria Lopez | Sistema de audicion. |
| EP1275271A2 (en) * | 2000-12-22 | 2003-01-15 | Koninklijke Philips Electronics N.V. | Multi-channel audio converter |
| WO2005070097A2 (en) * | 2004-01-09 | 2005-08-04 | Masonware Partners, Llc | Passive surround sound adapter |
| US20060150047A1 (en) * | 2004-12-30 | 2006-07-06 | Wolfgang Nikutta | Apparatus and method for generating a high-frequency signal |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3813494A (en) * | 1970-06-08 | 1974-05-28 | Columbia Broadcasting Syst Inc | Quadraphonic reproducing system |
| US3745252A (en) * | 1971-02-03 | 1973-07-10 | Columbia Broadcasting Syst Inc | Matrixes and decoders for quadruphonic records |
| US3787622A (en) | 1971-02-05 | 1974-01-22 | Sansui Electric Co | Quadrasonic sound system for two channel transmission |
| NL172815B (nl) * | 1971-04-13 | Sony Corp | Meervoudige geluidweergeefinrichting. | |
| JPS5213082B1 (xx) * | 1971-07-19 | 1977-04-12 |
-
1972
- 1972-05-02 JP JP47043991A patent/JPS5210364B2/ja not_active Expired
-
1973
- 1973-04-30 GB GB2053473A patent/GB1395477A/en not_active Expired
- 1973-04-30 US US355420A patent/US3892918A/en not_active Expired - Lifetime
- 1973-05-02 DE DE2322145A patent/DE2322145C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS495601A (xx) | 1974-01-18 |
| DE2322145C2 (de) | 1986-03-27 |
| GB1395477A (en) | 1975-05-29 |
| US3892918A (en) | 1975-07-01 |
| DE2322145A1 (de) | 1973-11-08 |