GB910869A - Improvements relating to methods and devices for magnetically recording signals - Google Patents
Improvements relating to methods and devices for magnetically recording signalsInfo
- Publication number
- GB910869A GB910869A GB3186261A GB3186261A GB910869A GB 910869 A GB910869 A GB 910869A GB 3186261 A GB3186261 A GB 3186261A GB 3186261 A GB3186261 A GB 3186261A GB 910869 A GB910869 A GB 910869A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heads
- tape
- video
- tracks
- sept
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/78—Television signal recording using magnetic recording
- H04N5/782—Television signal recording using magnetic recording on tape
- H04N5/7824—Television signal recording using magnetic recording on tape with rotating magnetic heads
- H04N5/7826—Television signal recording using magnetic recording on tape with rotating magnetic heads involving helical scanning of the magnetic tape
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
910,869. Magnetic recording; television. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 5, 1961 [Sept. 8, 1960], No. 31862/61. Class 40 (2). A television signal is recorded as to video by the drum-mounted heads 4-7 and as to audio and synchronizing signals by the stationary heads 12, 13 on a second coating on the opposite side of the tape, so that the respective tracks 21, 19, 20 corresponding to the same instant in time of their respective information are recoded in overlapping relationship at the same part of the tape, thus providing for simplified editing and splicing. Wide tracks produced by heads 12, 13 are only partially affected by the adjacent video recordings or by printing from the next tape-turn during storage, leaving an ample margin of signal on playback by heads insensitive to video frequencies, while the frequencymodulated video signals do not fall below 1 mc/s. so that interference by tracks 19, 20 is readily removed by filtering. A further advantage claimed is the use of narrower tape for the same information storage.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL255726 | 1960-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB910869A true GB910869A (en) | 1962-11-21 |
Family
ID=19752555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3186261A Expired GB910869A (en) | 1960-09-08 | 1961-09-05 | Improvements relating to methods and devices for magnetically recording signals |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH411032A (en) |
| GB (1) | GB910869A (en) |
| NL (1) | NL255726A (en) |
-
0
- NL NL255726D patent/NL255726A/xx unknown
-
1961
- 1961-09-05 CH CH1028361A patent/CH411032A/en unknown
- 1961-09-05 GB GB3186261A patent/GB910869A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH411032A (en) | 1966-04-15 |
| NL255726A (en) |
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