GB1329787A - Apparatus for magnetically recording and or reproducing a video signal on a magnetic tape - Google Patents
Apparatus for magnetically recording and or reproducing a video signal on a magnetic tapeInfo
- Publication number
- GB1329787A GB1329787A GB2968171A GB2968171A GB1329787A GB 1329787 A GB1329787 A GB 1329787A GB 2968171 A GB2968171 A GB 2968171A GB 2968171 A GB2968171 A GB 2968171A GB 1329787 A GB1329787 A GB 1329787A
- Authority
- GB
- United Kingdom
- Prior art keywords
- recording
- erase
- heads
- signals
- june
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/022—Electronic editing of analogue information signals, e.g. audio or video signals
- G11B27/029—Insert-editing
Abstract
1329787 Videotapes; recording and playback SONY CORP 24 June 1971 [26 June 1970] 29681/71 Heading G5R In a videotape recording/playback system usable for editing, an unwanted section of a recording is erased by a portion of the actual signals that are to be recorded in its place. In the embodiment shown, video signals which are desired to be added to a tape (6, Fig. 1, not shown) are fed from a modulator 8, Fig. 3, to two rotary recording heads 3a, 3b, and the high frequency portion of these signals, as selected by a high pass filter 19, is simultaneously fed as erase current to two similarly rotating erase heads 4a, 4b. Heads 4a, 4b are arranged to scan the same tracks as heads 3a, 3b, and in advance, as in Fig. 2, but their gaps are set obliquely to the normal recording field direction. Thus by suitably amplifying the erase currents at 14, Fig. 3, the erase fields can be made to saturate the recording medium in the oblique direction, i.e. to wipe out the previous recording, and by carefully choosing the values of the track width, the erase field offset angle, the frequencies, &c., it is possible to make the erase signal produced in normal replay of the edited tape very small.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP45055816A JPS5114249B1 (en) | 1970-06-26 | 1970-06-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1329787A true GB1329787A (en) | 1973-09-12 |
Family
ID=13009446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2968171A Expired GB1329787A (en) | 1970-06-26 | 1971-06-24 | Apparatus for magnetically recording and or reproducing a video signal on a magnetic tape |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5114249B1 (en) |
DE (1) | DE2131147A1 (en) |
FR (1) | FR2096525B1 (en) |
GB (1) | GB1329787A (en) |
NL (1) | NL7108855A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3340113A1 (en) * | 1983-11-05 | 1985-05-15 | Robert Bosch Gmbh, 7000 Stuttgart | SYSTEM FOR STORING DIGITALLY CODED SIGNALS ON MAGNETIC TAPE |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL165593C (en) * | 1974-12-13 | 1981-04-15 | Philips Nv | DEVICE FOR RECORDING INFORMATION TRACKS. |
JPS5683808A (en) * | 1979-12-11 | 1981-07-08 | Sony Corp | Magnetic recording and reproducing device |
US4520405A (en) * | 1981-06-22 | 1985-05-28 | Victor Company Of Japan, Ltd. | Insert recording system for a video signal |
JPS6333819U (en) * | 1986-08-25 | 1988-03-04 | ||
JP2940093B2 (en) * | 1990-07-16 | 1999-08-25 | 松下電器産業株式会社 | Recording and playback device |
-
1970
- 1970-06-26 JP JP45055816A patent/JPS5114249B1/ja active Pending
-
1971
- 1971-06-23 DE DE19712131147 patent/DE2131147A1/en active Pending
- 1971-06-24 GB GB2968171A patent/GB1329787A/en not_active Expired
- 1971-06-25 FR FR7123364A patent/FR2096525B1/fr not_active Expired
- 1971-06-25 NL NL7108855A patent/NL7108855A/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3340113A1 (en) * | 1983-11-05 | 1985-05-15 | Robert Bosch Gmbh, 7000 Stuttgart | SYSTEM FOR STORING DIGITALLY CODED SIGNALS ON MAGNETIC TAPE |
Also Published As
Publication number | Publication date |
---|---|
FR2096525B1 (en) | 1975-02-21 |
JPS5114249B1 (en) | 1976-05-08 |
DE2131147A1 (en) | 1971-12-30 |
NL7108855A (en) | 1971-12-28 |
FR2096525A1 (en) | 1972-02-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |