JPS515561B1 - - Google Patents
Info
- Publication number
- JPS515561B1 JPS515561B1 JP45043897A JP4389770A JPS515561B1 JP S515561 B1 JPS515561 B1 JP S515561B1 JP 45043897 A JP45043897 A JP 45043897A JP 4389770 A JP4389770 A JP 4389770A JP S515561 B1 JPS515561 B1 JP S515561B1
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691927408 DE1927408C3 (de) | 1969-01-23 | 1969-05-29 | Vorrichtung zur Wiedergabe von gespeicherten Signalen |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS515561B1 true JPS515561B1 (ja) | 1976-02-20 |
Family
ID=5735535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP45043897A Pending JPS515561B1 (ja) | 1969-05-29 | 1970-05-22 |
Country Status (3)
Country | Link |
---|---|
US (1) | US3654401A (ja) |
JP (1) | JPS515561B1 (ja) |
DD (1) | DD102501A2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5458356U (ja) * | 1977-09-27 | 1979-04-23 |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4160269A (en) * | 1971-03-04 | 1979-07-03 | U.S. Philips Corporation | Apparatus for optically reading a phase-modulated optical record carrier |
US4041530A (en) * | 1971-03-04 | 1977-08-09 | U.S. Philips Corporation | Video disc with phase structure |
US3783196A (en) * | 1971-03-22 | 1974-01-01 | Rca Corp | High-density capacitive information records and playback apparatus therefor |
US3839601A (en) * | 1971-07-06 | 1974-10-01 | Gakken Co Ltd | Optical record sheet and device for reproducing sound therefrom |
US3902010A (en) * | 1972-02-15 | 1975-08-26 | Canon Kk | Information recording device with record having layers with different intensity sensitivity |
US5182743A (en) * | 1972-08-25 | 1993-01-26 | Thomson-Csf | Optical disk arrangement with diffractive tracks allowing positional control |
FR2197495A5 (ja) * | 1972-08-25 | 1974-03-22 | Thomson Csf | |
US5175725A (en) * | 1972-08-25 | 1992-12-29 | Thomson-Csf | Optical disk arrangement with closed contours whose entire extent represents information |
US3968326A (en) * | 1973-02-09 | 1976-07-06 | Rca Corporation | Trapezoidal smooth grooves for video disc |
US3919465A (en) * | 1974-01-14 | 1975-11-11 | Zenith Radio Corp | Optical system for directly detecting spatially recorded signals |
US3919562A (en) * | 1974-05-20 | 1975-11-11 | Zenith Radio Corp | Slit detector for optical detector system |
US3980811A (en) * | 1974-09-03 | 1976-09-14 | Nihon Denshi Kabushiki Kaisha | Contacting pickup optical reproduction system |
US4162510A (en) * | 1977-03-25 | 1979-07-24 | Rca Corporation | Keel-tipped stylus for video disc systems |
US4124867A (en) * | 1977-03-28 | 1978-11-07 | Rca Corporation | Narrowed-electrode pickup stylus for video disc systems |
US4980882A (en) * | 1987-04-06 | 1990-12-25 | Storage Technology Corporation Partners Ii | Optical disk for detesting and distinguishing servo tracks from data tracks |
EP1291691A1 (en) * | 2001-09-07 | 2003-03-12 | Agilent Technologies, Inc. (a Delaware corporation) | Glass joint for an optical fibre module and a method of joining an optical fibre to an optical module housing |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1917003A (en) * | 1929-01-21 | 1933-07-04 | Columbia Phono Graph Company I | Reproduction of sound records |
US1944202A (en) * | 1929-10-04 | 1934-01-23 | Columbia Phonograph Co Inc | Apparatus for reproducing sound from records |
US2092892A (en) * | 1935-12-31 | 1937-09-14 | Rca Corp | Phonographic apparatus |
US2529050A (en) * | 1946-08-28 | 1950-11-07 | Jack R Sanders | Optical sound reproducing system |
US2654810A (en) * | 1949-11-15 | 1953-10-06 | Miessner Inventions Inc | Photoelectric translating system |
US3235672A (en) * | 1961-11-17 | 1966-02-15 | American Optical Corp | Optical sound recording and reproduction |
-
1970
- 1970-05-22 JP JP45043897A patent/JPS515561B1/ja active Pending
- 1970-05-22 DD DD147647A patent/DD102501A2/xx unknown
- 1970-05-28 US US41281A patent/US3654401A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5458356U (ja) * | 1977-09-27 | 1979-04-23 |
Also Published As
Publication number | Publication date |
---|---|
US3654401A (en) | 1972-04-04 |
DD102501A2 (ja) | 1973-12-12 |