KR970076647A - Digital V-Cyl's variable speed regenerator - Google Patents
Digital V-Cyl's variable speed regenerator Download PDFInfo
- Publication number
- KR970076647A KR970076647A KR1019960015780A KR19960015780A KR970076647A KR 970076647 A KR970076647 A KR 970076647A KR 1019960015780 A KR1019960015780 A KR 1019960015780A KR 19960015780 A KR19960015780 A KR 19960015780A KR 970076647 A KR970076647 A KR 970076647A
- Authority
- KR
- South Korea
- Prior art keywords
- data
- variable speed
- shift
- reproduction
- speed change
- Prior art date
Links
Classifications
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- 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
- G11B27/30—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 the same track as the main recording
- G11B27/3027—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 the same track as the main recording used signal is digitally coded
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
- G11B15/1808—Driving of both record carrier and head
- G11B15/1875—Driving of both record carrier and head adaptations for special effects or editing
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1806—Pulse code modulation systems for audio signals
- G11B20/1809—Pulse code modulation systems for audio signals by interleaving
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- 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
- H04N5/78263—Television signal recording using magnetic recording on tape with rotating magnetic heads involving helical scanning of the magnetic tape for recording on tracks inclined relative to the direction of movement of the tape
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/90—Tape-like record carriers
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
DVCR의 변속재생장치가 개시된바, 테이프의 헬리컬트랙상에 변속데이타를 정확하게 기록하지 않을 경우 변속재생이 어려우며, 변속데이타의 기록위치가 서로 다르게 기록되어야 하기 때문에 멀티플렉싱이 매우 복잡해지는 문제점이 제기되어 이를 해결하기 위하여 첫째, 디지탈 영상신호 기록시 헬리컬헤드에 의해 테이프트랙상의 동일 위치에 기록된 변속데이타를 변속재생시 리니어 헤드를 사용하여 쉽게 변속재생이 가능하도록 하고 또한, MPEG 디지탈 영상신호를 기록재생시, 모든 영상의 기준영상이 되는 I프레임의 전체 또는 일부를 검출하여 이를 분할하고 분할된 데이타를 각 헬리컬 트랙의 동일 위치에 기록하여 변속재생시 리니어 헤드를 사용하여 쉽게 변속재생을 구현하도록 하여 변속데이타의 멀티플렉싱을 매우 간단하게 하였다.When the variable speed reproduction apparatus of the DVCR is disclosed, it is difficult to perform the variable speed reproduction on the helical track of the tape when the speed change data is not accurately recorded. Since the recording positions of the speed change data must be recorded differently, multiplexing becomes very complicated, In order to solve the problem, firstly, when the speed change data recorded at the same position on the tape track by the helical head during the digital video signal recording is reproduced by the linear head, All or a part of an I frame serving as a reference image of all images is detected and divided, and the divided data is recorded at the same position of each helical track, so that the variable speed reproduction can be easily implemented using the linear head during variable speed reproduction, Multiplexing of the < / RTI >
둘째, MPEG 디지탈 영상신호입력시 I프레임의 일부 또는 전체를 검출하여 이를 분할하고, 각 헬리컬 트랙의 동일 위치에 기록하되 많은 I프레임를 기록하기 위해 I프레임의 데이타량를 감소시켜 기록하며, 변속재생시 많은 I프레임을 재생시켜 자연스러운 변속화상을 구현할 수 있는 효과가 있다.Secondly, when inputting an MPEG digital video signal, a part or all of an I frame is detected and divided, and the data of the I frame is recorded to record a lot of I frames at the same position of each helical track. There is an effect that a natural shifted image can be realized by reproducing the I frame.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.
제2도는 본 발명의 제1실시예에 따른 DVCR의 변속데이타 기록 및 재생장치를 나타낸 블록 구성도, 제3도는 본 발명에 따른 테이프의 트랙 구성도, 제4도는 본 발명의 제2실시예에 따른 DVCR의 변속데이타 기록 및 재생장치를 나타낸 블록 구성도.FIG. 2 is a block diagram of a variable speed data recording and reproducing apparatus of a DVCR according to a first embodiment of the present invention. FIG. 3 is a track configuration diagram of a tape according to the present invention. FIG. 1 is a block diagram showing a variable-speed data recording and reproducing apparatus of a DVCR according to an embodiment of the present invention; FIG.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960015780A KR100192346B1 (en) | 1996-05-13 | 1996-05-13 | Speed change device for a digital vcr |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960015780A KR100192346B1 (en) | 1996-05-13 | 1996-05-13 | Speed change device for a digital vcr |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970076647A true KR970076647A (en) | 1997-12-12 |
KR100192346B1 KR100192346B1 (en) | 1999-06-15 |
Family
ID=19458495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960015780A KR100192346B1 (en) | 1996-05-13 | 1996-05-13 | Speed change device for a digital vcr |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100192346B1 (en) |
-
1996
- 1996-05-13 KR KR1019960015780A patent/KR100192346B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR100192346B1 (en) | 1999-06-15 |
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