JPS5746132B2 - - Google Patents
Info
- Publication number
- JPS5746132B2 JPS5746132B2 JP52018056A JP1805677A JPS5746132B2 JP S5746132 B2 JPS5746132 B2 JP S5746132B2 JP 52018056 A JP52018056 A JP 52018056A JP 1805677 A JP1805677 A JP 1805677A JP S5746132 B2 JPS5746132 B2 JP S5746132B2
- 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
Priority Applications (14)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1805677A JPS53103715A (en) | 1977-02-23 | 1977-02-23 | Grooveless disc for information recording medium |
NLAANVRAGE7801387,A NL173104C (en) | 1977-02-09 | 1978-02-07 | ROTARY TYPE INFORMATION SIGNAL RECORD MEDIUM AND DEVICE FOR RECORDING INFORMATION SIGNALS THEREOF. |
CA296,450A CA1106061A (en) | 1977-02-09 | 1978-02-08 | Rotary recording medium with intermediate pits |
GB5035/78A GB1600432A (en) | 1977-02-09 | 1978-02-08 | Information signal recording medium of rotary type and apparatus for recording information signal thereon |
NLAANVRAGE7801440,A NL173797C (en) | 1977-02-09 | 1978-02-08 | INFORMATION SIGNAL RECORD MEDIUM WITH A FLAT SURFACE, AND REGISTRATOR FOR SUCH A MEDIUM. |
GB5033/78A GB1600431A (en) | 1977-02-09 | 1978-02-08 | Information signal recording medium of rotary type and apparatus for recording information signal thereon |
FR7803570A FR2384316B1 (en) | 1977-02-09 | 1978-02-08 | RECORDING MEDIUM FOR VIDEO AND AUDIO SIGNALS AND DEVICE FOR MAKING RECORDINGS ON SUCH MEDIUM |
FR7803571A FR2382742B1 (en) | 1977-02-09 | 1978-02-08 | MEDIUM FOR RECORDING VIDEO AND AUDIO SIGNALS AND DEVICE FOR MAKING RECORDINGS THEREOF |
CA000296451A CA1119296A (en) | 1977-02-09 | 1978-02-08 | Information signal recording medium of the rotary type |
DE2805322A DE2805322C2 (en) | 1977-02-09 | 1978-02-09 | Rotatable information signal recording medium and recording arrangement for producing the information signal recording medium |
DE2805323A DE2805323C2 (en) | 1977-02-09 | 1978-02-09 | Rotatable information signal recording medium and recording arrangement for the recording medium |
FR7819900A FR2384317B1 (en) | 1977-02-09 | 1978-07-04 | DEVICE FOR RECORDING, IN PARTICULAR OF INFORMATION SIGNALS, ON ROTATING MEDIA |
US06/055,752 US4327430A (en) | 1977-02-09 | 1979-07-06 | Information signal recording medium of rotary type with overlapped tracks |
US06/186,297 US4420827A (en) | 1977-02-09 | 1980-09-11 | Disc reproducing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1805677A JPS53103715A (en) | 1977-02-23 | 1977-02-23 | Grooveless disc for information recording medium |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS53103715A JPS53103715A (en) | 1978-09-09 |
JPS5746132B2 true JPS5746132B2 (en) | 1982-10-01 |
Family
ID=11961028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1805677A Granted JPS53103715A (en) | 1977-02-09 | 1977-02-23 | Grooveless disc for information recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS53103715A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6050733A (en) * | 1983-08-31 | 1985-03-20 | Sony Corp | Optical recording medium and producer of master disk of said medium |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5398814A (en) * | 1977-02-09 | 1978-08-29 | Victor Co Of Japan Ltd | Grooveless medium disc for information recording |
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1977
- 1977-02-23 JP JP1805677A patent/JPS53103715A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5398814A (en) * | 1977-02-09 | 1978-08-29 | Victor Co Of Japan Ltd | Grooveless medium disc for information recording |
Also Published As
Publication number | Publication date |
---|---|
JPS53103715A (en) | 1978-09-09 |