ES451121A1 - Improvements introduced in a mold for use in mass production of video discs. (Machine-translation by Google Translate, not legally binding) - Google Patents
Improvements introduced in a mold for use in mass production of video discs. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES451121A1 ES451121A1 ES451121A ES451121A ES451121A1 ES 451121 A1 ES451121 A1 ES 451121A1 ES 451121 A ES451121 A ES 451121A ES 451121 A ES451121 A ES 451121A ES 451121 A1 ES451121 A1 ES 451121A1
- Authority
- ES
- Spain
- Prior art keywords
- mold
- discontinuities
- video discs
- translation
- machine
- 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.)
- Expired
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Perfections introduced in a mold for use in the mass production of video discs or video discs, whose mold comprises an elastomer having an upper surface whose characteristics, when reproduced on a video disc, represent information, said surface being substantially flat and with discontinuities outside the plane of the surface corresponding to the information, said discontinuities being generally arranged in a substantially circular track, all discontinuities having a constant dimension in radial direction and a maximum constant dimension in the direction perpendicular to said surface, the information stored being represented by the length of each discontinuity in the circumferential direction and by the distance between adjacent discontinuities in the circumferential direction. (Machine-translation by Google Translate, not legally binding)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES451121A ES451121A1 (en) | 1976-08-31 | 1976-08-31 | Improvements introduced in a mold for use in mass production of video discs. (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES451121A ES451121A1 (en) | 1976-08-31 | 1976-08-31 | Improvements introduced in a mold for use in mass production of video discs. (Machine-translation by Google Translate, not legally binding) |
Publications (1)
Publication Number | Publication Date |
---|---|
ES451121A1 true ES451121A1 (en) | 1977-08-16 |
Family
ID=8472189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES451121A Expired ES451121A1 (en) | 1976-08-31 | 1976-08-31 | Improvements introduced in a mold for use in mass production of video discs. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES451121A1 (en) |
-
1976
- 1976-08-31 ES ES451121A patent/ES451121A1/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1033834A (en) | Data record tracking using track identifying information in the gaps between recorded data groups | |
SE7909118L (en) | OPTICAL ENROLLABLE RECORDER | |
NL7402077A (en) | SYSTEM INCLUDING A PLAYBACK AND AN ACCOMPANYING LONG-PLAYING DISC. | |
SE8100030L (en) | OPTICALLY READABLE DIGITAL INFORMATION DISC AND PRODUCTION, RECORDING AND REPRODUCTION APPLIANCE FOR THE SAME | |
AR223138A1 (en) | AN IMPROVED SYNTHESIZER FOR CONVERTING DIGITALALLY CODED INFORMATION FOR PLAYBACK ON A HEADSET | |
NO149794C (en) | DEVICE FOR READING A RECORDING CARRIER ON WHICH STORAGE INFORMATION IS STORED, e.g. VIDEO AND / OR AUDIO INFORMATION | |
ES456757A1 (en) | Method and apparatus for increasing the recording capacity of a disk | |
DE3881314D1 (en) | DATA RECORDING DISK FILE WITH DIGITAL TRACKING. | |
JPS53130928A (en) | Disk record reproducer | |
NL7402868A (en) | TELEIVSION RECORDING-DISPLAY SYSTEM SUITABLE FOR A KONTINUE AND A SHORT-TERM INFORMATION RECORDING AND FOR A CONTINUOUS PLAYBACK. | |
JPS5284724A (en) | Disk record reproducer | |
IT8221397A0 (en) | CASE FOR DISCS WITH AUDIO-VISUAL INFORMATION AND RELATED PLAYER MEDIA. | |
ES451121A1 (en) | Improvements introduced in a mold for use in mass production of video discs. (Machine-translation by Google Translate, not legally binding) | |
AU540178B2 (en) | Digital recording | |
ES236230Y (en) | IMPROVEMENTS INTRODUCED IN AN ADAPTER DISK FOR USE WITH A RECORD PLAYER, IN PARTICULAR A VIDEO PLAYER-DUCER. | |
IT7969233A0 (en) | SIMPLIFIED PHONOGRAPH FOR SELECTING A PREDETERMINED PLAYING GROOVE ON A PHONOGRAPH RECORD | |
JPS52135613A (en) | Information recording media | |
JPS52136609A (en) | Device for recording audio information on sound track | |
ES432316A1 (en) | Apparatus for optically reading a reflecting record carrier | |
GB1134100A (en) | Stylus and equipment testing record for record players | |
ES44499U (en) | Improved gramophone record (Machine-translation by Google Translate, not legally binding) | |
IL52445A0 (en) | Method for making a phonograph record and record obtained with said method | |
IT8026906A0 (en) | MAGNETIC RECORDING MEDIA HAVING A LUBRICATED CONTACT LAYER. | |
ES254641U (en) | Phonographic disk (Machine-translation by Google Translate, not legally binding) | |
ES436139A1 (en) | Stylus unit for a gramophone pick-up or disc cutter |