JPS5247884B2 - - Google Patents
Info
- Publication number
- JPS5247884B2 JPS5247884B2 JP48052076A JP5207673A JPS5247884B2 JP S5247884 B2 JPS5247884 B2 JP S5247884B2 JP 48052076 A JP48052076 A JP 48052076A JP 5207673 A JP5207673 A JP 5207673A JP S5247884 B2 JPS5247884 B2 JP S5247884B2
- 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
- H04S3/006—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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00992—Circuits for stereophonic or quadraphonic recording or reproducing
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Stereophonic System (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP48052076A JPS5247884B2 (ja) | 1973-05-10 | 1973-05-10 | |
GB2005174A GB1473531A (en) | 1973-05-10 | 1974-05-07 | Control of crosstalk in multiple frequency recording |
CA199,126A CA1006826A (en) | 1973-05-10 | 1974-05-07 | Control of crosstalk in multiple frequency recording |
DE19742422423 DE2422423C2 (de) | 1973-05-10 | 1974-05-09 | Verfahren zur Aufzeichnung von vier Kanalsignalen auf den beiden Seitenwänden der Rille einer Schallplatte |
NL7406289A NL185876C (nl) | 1973-05-10 | 1974-05-09 | Stelsel voor registratie vanuit een aantal richtingen afkomstige geluidssignalen op een registratiemedium en stelsel voor weergave van dergelijke signalen. |
DE19742422471 DE2422471C2 (de) | 1973-05-10 | 1974-05-09 | Anordnung zur Übertragung von Mehrkanalsignalen |
US05/468,279 US3946165A (en) | 1971-10-06 | 1974-05-09 | Method and apparatus for control of crosstalk in multiple frequency recording |
FR7415992A FR2229181B1 (ja) | 1973-05-10 | 1974-05-09 | |
FR7416250A FR2229183B1 (ja) | 1973-05-10 | 1974-05-10 | |
NL7406328A NL7406328A (ja) | 1973-05-10 | 1974-05-10 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP48052076A JPS5247884B2 (ja) | 1973-05-10 | 1973-05-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5019404A JPS5019404A (ja) | 1975-02-28 |
JPS5247884B2 true JPS5247884B2 (ja) | 1977-12-06 |
Family
ID=12904714
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP48052076A Expired JPS5247884B2 (ja) | 1971-10-06 | 1973-05-10 |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5247884B2 (ja) |
CA (1) | CA1006826A (ja) |
DE (1) | DE2422423C2 (ja) |
FR (1) | FR2229181B1 (ja) |
GB (1) | GB1473531A (ja) |
NL (1) | NL7406328A (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4938112U (ja) * | 1972-07-04 | 1974-04-04 | ||
JPS5437223Y2 (ja) * | 1974-12-18 | 1979-11-08 | ||
JPS52161015U (ja) * | 1976-05-29 | 1977-12-07 | ||
JPS53128210A (en) * | 1977-04-15 | 1978-11-09 | Nippon Gakki Seizo Kk | Display unit for receiving frequency |
JPS557607A (en) * | 1978-06-30 | 1980-01-19 | Yaesu Musen Co Ltd | Digital display system by measuring sum or difference between two frequencies |
JPS55164278U (ja) * | 1979-05-11 | 1980-11-26 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3906156A (en) * | 1971-10-06 | 1975-09-16 | Duane H Cooper | Signal matrixing for directional reproduction of sound |
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1973
- 1973-05-10 JP JP48052076A patent/JPS5247884B2/ja not_active Expired
-
1974
- 1974-05-07 GB GB2005174A patent/GB1473531A/en not_active Expired
- 1974-05-07 CA CA199,126A patent/CA1006826A/en not_active Expired
- 1974-05-09 FR FR7415992A patent/FR2229181B1/fr not_active Expired
- 1974-05-09 DE DE19742422423 patent/DE2422423C2/de not_active Expired
- 1974-05-10 NL NL7406328A patent/NL7406328A/xx not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE2422423C2 (de) | 1986-03-06 |
GB1473531A (en) | 1977-05-11 |
CA1006826A (en) | 1977-03-15 |
JPS5019404A (ja) | 1975-02-28 |
DE2422423A1 (de) | 1974-11-28 |
FR2229181A1 (ja) | 1974-12-06 |
NL7406328A (ja) | 1974-11-12 |
FR2229181B1 (ja) | 1982-03-26 |