JPS5398814A - Grooveless medium disc for information recording - Google Patents
Grooveless medium disc for information recordingInfo
- Publication number
- JPS5398814A JPS5398814A JP1332277A JP1332277A JPS5398814A JP S5398814 A JPS5398814 A JP S5398814A JP 1332277 A JP1332277 A JP 1332277A JP 1332277 A JP1332277 A JP 1332277A JP S5398814 A JPS5398814 A JP S5398814A
- Authority
- JP
- Japan
- Prior art keywords
- grooveless
- information recording
- medium disc
- information signals
- electrostaic
- 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
Abstract
PURPOSE: To detect the changes in electrostaic capacity through the use of a grooveless type disc and reproduce information signals by making the width of the bits formed in correspondence to the information signals approximately euqal to or larger than the spacing between recording tracks.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (14)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1332277A JPS5398814A (en) | 1977-02-09 | 1977-02-09 | Grooveless medium disc for information recording |
NLAANVRAGE7801387,A NL173104C (en) | 1977-02-09 | 1978-02-07 | ROTARY TYPE INFORMATION SIGNAL RECORD MEDIUM AND DEVICE FOR RECORDING INFORMATION SIGNALS THEREOF. |
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 |
CA296,450A CA1106061A (en) | 1977-02-09 | 1978-02-08 | Rotary recording medium with intermediate pits |
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 |
GB5035/78A GB1600432A (en) | 1977-02-09 | 1978-02-08 | Information signal recording medium of rotary type and apparatus for recording information signal thereon |
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 |
---|---|---|---|
JP1332277A JPS5398814A (en) | 1977-02-09 | 1977-02-09 | Grooveless medium disc for information recording |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5398814A true JPS5398814A (en) | 1978-08-29 |
JPS5732415B2 JPS5732415B2 (en) | 1982-07-10 |
Family
ID=11829911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1332277A Granted JPS5398814A (en) | 1977-02-09 | 1977-02-09 | Grooveless medium disc for information recording |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5398814A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53103715A (en) * | 1977-02-23 | 1978-09-09 | Victor Co Of Japan Ltd | Grooveless disc for information recording medium |
JPS56107306A (en) * | 1978-11-16 | 1981-08-26 | Rca Corp | Record disk |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5046429A (en) * | 1973-08-31 | 1975-04-25 |
-
1977
- 1977-02-09 JP JP1332277A patent/JPS5398814A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5046429A (en) * | 1973-08-31 | 1975-04-25 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53103715A (en) * | 1977-02-23 | 1978-09-09 | Victor Co Of Japan Ltd | Grooveless disc for information recording medium |
JPS5746132B2 (en) * | 1977-02-23 | 1982-10-01 | ||
JPS56107306A (en) * | 1978-11-16 | 1981-08-26 | Rca Corp | Record disk |
Also Published As
Publication number | Publication date |
---|---|
JPS5732415B2 (en) | 1982-07-10 |
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