JPS57123503A - Improving method for characteristics of tape recorder - Google Patents
Improving method for characteristics of tape recorderInfo
- Publication number
- JPS57123503A JPS57123503A JP155981A JP155981A JPS57123503A JP S57123503 A JPS57123503 A JP S57123503A JP 155981 A JP155981 A JP 155981A JP 155981 A JP155981 A JP 155981A JP S57123503 A JPS57123503 A JP S57123503A
- Authority
- JP
- Japan
- Prior art keywords
- black
- white
- tape recorder
- lens
- film
- 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.)
- 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
- G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
- G11B7/003—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Optical Recording Or Reproduction (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
PURPOSE:To obtain a small-sized inexpensive and simple reproducing device for a PCM tape by recording black-and-white squares on a black-and-white film and reading them by an array of photoelectric elements through the enlargement of a lens by projecting light from a light source. CONSTITUTION:On a black-and-white film 12, information by position marks 13 and a black-and-white squares is recorded. Light from a light source 15 passes through a running film 16 to form an enlarged image on a photoelectric element array 18 through a lens 17, and the image is read. Consequently, a small-sized, inexpensive and simple reproducing device for a PCM tape is obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP155981A JPS57123503A (en) | 1981-01-06 | 1981-01-06 | Improving method for characteristics of tape recorder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP155981A JPS57123503A (en) | 1981-01-06 | 1981-01-06 | Improving method for characteristics of tape recorder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57123503A true JPS57123503A (en) | 1982-08-02 |
Family
ID=11504876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP155981A Pending JPS57123503A (en) | 1981-01-06 | 1981-01-06 | Improving method for characteristics of tape recorder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57123503A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0130391A2 (en) * | 1983-06-02 | 1985-01-09 | Andros Research Limited | A method of, and apparatus for, retrieval of information from an optical medium, and optical media |
JPS6050753A (en) * | 1983-08-31 | 1985-03-20 | Canon Inc | Rotary head type recorder |
JPS61501115A (en) * | 1983-10-12 | 1986-05-29 | ドレクスラ−・テクノロジ−・コ−ポレ−ション | 4x density optical data system |
-
1981
- 1981-01-06 JP JP155981A patent/JPS57123503A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0130391A2 (en) * | 1983-06-02 | 1985-01-09 | Andros Research Limited | A method of, and apparatus for, retrieval of information from an optical medium, and optical media |
JPS6050753A (en) * | 1983-08-31 | 1985-03-20 | Canon Inc | Rotary head type recorder |
JPS61501115A (en) * | 1983-10-12 | 1986-05-29 | ドレクスラ−・テクノロジ−・コ−ポレ−ション | 4x density optical data system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE8716T1 (en) | FILM CASSETTE AND PHOTOGRAPHIC ARRANGEMENT THEREOF. | |
BE850782A (en) | DEVICE FOR READING A RECORDING MEDIA IN WHICH INFORMATION IS RECORDED | |
ES2161742T3 (en) | RECORDING AND REPRODUCTION OF DIGITAL VIDEO DATA. | |
FR2342606A1 (en) | DEVICE FOR RECORDING AND / OR REPRODUCING VIDEO SIGNALS | |
FR2406865A1 (en) | DEVICE FOR READING THE INFORMATION RECORDED ON A MAGNETIC MEDIA | |
FR2529701B1 (en) | CASSETTE FOR INFORMATION RECORDING AND READING DISC | |
JPS5345506A (en) | Information detecting apparatus | |
FR2519173B1 (en) | DEVICE FOR RECORDING AND REPRODUCING DATA | |
JPS57123503A (en) | Improving method for characteristics of tape recorder | |
FR2290807A1 (en) | DEVICE FOR RECORDING AND REPRODUCING A VIDEO SIGNAL | |
KR880700398A (en) | Optical recording card record playback device | |
BE862233A (en) | METHOD OF RECORDING AND REPRODUCTION OF VIDEO SIGNALS BY MEANS OF A MAGNETIC TAPE | |
FR2393391A1 (en) | REPRODUCTIVE DEVICE WITH AUTOMATIC HEAD ALIGNMENT | |
JPS5589928A (en) | Vertical magnetic recorder and its reproduction system | |
ATE78118T1 (en) | DEVICE FOR CONVERTING MARKING INFORMATION. | |
DE69423792T2 (en) | Playback device for playing back magnetic data on multiple tracks | |
SU672646A1 (en) | Apparatus for magnetic recording and reproducing of information | |
KR860001986U (en) | Cassette tape recorder | |
JPS55146612A (en) | Tape recorder | |
JPS55139645A (en) | Transfer speed converter | |
JPS5335505A (en) | Magnetic-tape recorder for talkie projector | |
IT1130751B (en) | OPTICAL VIDEO DISK FOR RECORDING AND READING AT TWO DIFFERENT WAVELENGTHS | |
JPS5315105A (en) | Spacing detector of optical recorder/reproducer | |
JPS54111315A (en) | Image recorder | |
SU968847A1 (en) | Device for reproducing from magnetic tape |