GB1450282A - Recording and plaxback apparatus - Google Patents
Recording and plaxback apparatusInfo
- Publication number
- GB1450282A GB1450282A GB30174A GB30174A GB1450282A GB 1450282 A GB1450282 A GB 1450282A GB 30174 A GB30174 A GB 30174A GB 30174 A GB30174 A GB 30174A GB 1450282 A GB1450282 A GB 1450282A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heads
- signal
- pulses
- erase
- track
- 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
-
- 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
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Television Signal Processing For Recording (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Abstract
1450282 Rotary head recorder PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 3 Jan 1974 [29 Jan 1973] 00301/74 Heading G5R In a rotary head video recording system the erasing signal to erase heads 6, 7 which precede recording heads 2, 3 is cut off as these erase heads cross a control signal or audio track 28 which extends parallel to the edge of the tape. The erase signal from source 29 is applied via a gate 32 to the heads 6, 7 each of which is preceded in its direction of rotation by a magnet 42, 43, the passage of which is detected by a pick-up coil 41. As the speed of rotation of the drum 1 is fixed by the field synchronizing pulses of the signal being recorded, the pulses 44 produced by passage of the magnets appear at a fixed time before the erase heads reach the track 28. Switching device 36 to which the pulses 44 are applied produces an output pulse 46 which starts after a delay equal to the fixed time and has a duration equal to the time the heads take to cross the track. This pulse is used to close the normally open gate 32. In a second arrangement the gating signal is derived from the field synchronization pulses.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT74373A AT320753B (en) | 1973-01-29 | 1973-01-29 | Recording and possibly reproducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1450282A true GB1450282A (en) | 1976-09-22 |
Family
ID=3498625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30174A Expired GB1450282A (en) | 1973-01-29 | 1974-01-03 | Recording and plaxback apparatus |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS49107215A (en) |
| AT (1) | AT320753B (en) |
| CA (1) | CA1055151A (en) |
| CH (1) | CH572259A5 (en) |
| DE (1) | DE2400782C3 (en) |
| ES (1) | ES422645A1 (en) |
| FR (1) | FR2215768A1 (en) |
| GB (1) | GB1450282A (en) |
| IT (1) | IT1004793B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| KR930007063B1 (en) * | 1991-04-02 | 1993-07-26 | 주식회사 금성사 | Device for editing character in vtr |
-
1973
- 1973-01-29 AT AT74373A patent/AT320753B/en not_active IP Right Cessation
-
1974
- 1974-01-03 GB GB30174A patent/GB1450282A/en not_active Expired
- 1974-01-09 DE DE19742400782 patent/DE2400782C3/en not_active Expired
- 1974-01-25 CA CA190,967A patent/CA1055151A/en not_active Expired
- 1974-01-25 IT IT6720974A patent/IT1004793B/en active
- 1974-01-26 ES ES422645A patent/ES422645A1/en not_active Expired
- 1974-01-26 JP JP49011359A patent/JPS49107215A/ja active Pending
- 1974-01-28 CH CH111774A patent/CH572259A5/xx not_active IP Right Cessation
- 1974-01-29 FR FR7402877A patent/FR2215768A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE2400782A1 (en) | 1974-08-01 |
| CA1055151A (en) | 1979-05-22 |
| IT1004793B (en) | 1976-07-20 |
| DE2400782C3 (en) | 1979-04-26 |
| AU6476674A (en) | 1975-07-24 |
| AT320753B (en) | 1975-02-25 |
| ES422645A1 (en) | 1976-04-16 |
| DE2400782B2 (en) | 1978-08-31 |
| JPS49107215A (en) | 1974-10-11 |
| FR2215768A1 (en) | 1974-08-23 |
| CH572259A5 (en) | 1976-01-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |