JPS5250701A - Optical signal reproduction device - Google Patents
Optical signal reproduction deviceInfo
- Publication number
- JPS5250701A JPS5250701A JP12703275A JP12703275A JPS5250701A JP S5250701 A JPS5250701 A JP S5250701A JP 12703275 A JP12703275 A JP 12703275A JP 12703275 A JP12703275 A JP 12703275A JP S5250701 A JPS5250701 A JP S5250701A
- Authority
- JP
- Japan
- Prior art keywords
- optical signal
- reproduction device
- signal reproduction
- light
- undulations
- 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
Landscapes
- Optical Recording Or Reproduction (AREA)
Abstract
PURPOSE: To radiate a medium recorded therein with modulated wave signals as changes in refractive index, undulations of a surface, rate of transmission, etc. with laser light, and emit beat signals with non-diffractive light as reference light, thereby making possible the recording and reproduction of high density information.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12703275A JPS5250701A (en) | 1975-10-22 | 1975-10-22 | Optical signal reproduction device |
US05/693,778 US4125860A (en) | 1975-06-16 | 1976-06-08 | Reproducer for an eraseable videodisc |
GB23887/76A GB1520595A (en) | 1975-06-16 | 1976-06-09 | Apparatus for reproducing information from a light-responsive storage medium |
FR7618068A FR2315140A1 (en) | 1975-06-16 | 1976-06-15 | APPARATUS FOR OPTICALLY REPRODUCING INFORMATION PRESENTED ON AN INFORMATION STORAGE MEDIA |
NLAANVRAGE7606434,A NL182256C (en) | 1975-06-16 | 1976-06-15 | DEVICE FOR REPRODUCING ELECTRICAL SIGNALS USED USING A CARRIER MODULATION METHOD ON A MOVING RECORDING MEDIA. |
DE2627079A DE2627079B2 (en) | 1975-06-16 | 1976-06-16 | Device for reproducing electrical signals recorded on a moving recording medium as an optical phase change using the carrier modulation method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12703275A JPS5250701A (en) | 1975-10-22 | 1975-10-22 | Optical signal reproduction device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5250701A true JPS5250701A (en) | 1977-04-23 |
JPS541162B2 JPS541162B2 (en) | 1979-01-22 |
Family
ID=14949967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12703275A Granted JPS5250701A (en) | 1975-06-16 | 1975-10-22 | Optical signal reproduction device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5250701A (en) |
-
1975
- 1975-10-22 JP JP12703275A patent/JPS5250701A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS541162B2 (en) | 1979-01-22 |
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