FR2286574A1 - Appareil de reproduction de signaux sonores multidirectionnels - Google Patents
Appareil de reproduction de signaux sonores multidirectionnelsInfo
- Publication number
- FR2286574A1 FR2286574A1 FR7529308A FR7529308A FR2286574A1 FR 2286574 A1 FR2286574 A1 FR 2286574A1 FR 7529308 A FR7529308 A FR 7529308A FR 7529308 A FR7529308 A FR 7529308A FR 2286574 A1 FR2286574 A1 FR 2286574A1
- Authority
- FR
- France
- Prior art keywords
- sound signal
- reproduction device
- signal reproduction
- multidirectional sound
- multidirectional
- Prior art date
- 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
- H04S3/006—Systems employing more than two channels, e.g. quadraphonic in which a plurality of audio signals are transformed in a combination of audio signals and modulated signals, e.g. CD-4 systems
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Stereophonic System (AREA)
- Stereo-Broadcasting Methods (AREA)
- Manipulation Of Pulses (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10971574A JPS5718757B2 (fr) | 1974-09-24 | 1974-09-24 | |
JP11534574U JPS5142071U (fr) | 1974-09-25 | 1974-09-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2286574A1 true FR2286574A1 (fr) | 1976-04-23 |
FR2286574B1 FR2286574B1 (fr) | 1981-10-02 |
Family
ID=26449441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7529308A Granted FR2286574A1 (fr) | 1974-09-24 | 1975-09-24 | Appareil de reproduction de signaux sonores multidirectionnels |
Country Status (4)
Country | Link |
---|---|
US (1) | US4075425A (fr) |
DE (1) | DE2542616C2 (fr) |
FR (1) | FR2286574A1 (fr) |
GB (1) | GB1521324A (fr) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1939422C3 (de) * | 1969-08-02 | 1985-10-03 | Interessengemeinschaft für Rundfunkschutzrechte GmbH Schutzrechtsverwertung & Co KG, 4000 Düsseldorf | Schaltungsanordnung zur Verringerung des Rauschens in einem Stereo-Rundfunkempfänger |
US3843850A (en) * | 1970-06-26 | 1974-10-22 | Victor Co Ltd | Four channel record reproducing apparatus with muting of speakers not used for stereo or monaural records |
JPS515763B1 (fr) * | 1971-05-24 | 1976-02-23 | ||
DE2303112A1 (de) * | 1972-01-24 | 1973-07-26 | Victor Company Of Japan | Demodulationsschaltung fuer eine mehrkanal-schallplatte |
US3761628A (en) * | 1972-04-13 | 1973-09-25 | Columbia Broadcasting Syst Inc | Stereo-quadraphonic matrix system with matrix or discrete sound reproduction capability |
US3934087A (en) * | 1972-10-07 | 1976-01-20 | Victor Company Of Japan, Limited | Angle modulated wave demodulation system |
JPS5550640B2 (fr) * | 1973-03-09 | 1980-12-19 | ||
JPS537249B2 (fr) * | 1973-04-25 | 1978-03-16 | ||
US3894201A (en) * | 1974-05-31 | 1975-07-08 | Rca Corp | System for dynamic and static muting |
-
1975
- 1975-09-19 US US05/614,873 patent/US4075425A/en not_active Expired - Lifetime
- 1975-09-19 GB GB38599/75A patent/GB1521324A/en not_active Expired
- 1975-09-24 DE DE2542616A patent/DE2542616C2/de not_active Expired
- 1975-09-24 FR FR7529308A patent/FR2286574A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
DE2542616A1 (de) | 1976-04-08 |
US4075425A (en) | 1978-02-21 |
FR2286574B1 (fr) | 1981-10-02 |
DE2542616C2 (de) | 1984-08-30 |
GB1521324A (en) | 1978-08-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |