EP0231299A1 - Procede de mise en forme de bandes video - Google Patents

Procede de mise en forme de bandes video

Info

Publication number
EP0231299A1
EP0231299A1 EP19860904775 EP86904775A EP0231299A1 EP 0231299 A1 EP0231299 A1 EP 0231299A1 EP 19860904775 EP19860904775 EP 19860904775 EP 86904775 A EP86904775 A EP 86904775A EP 0231299 A1 EP0231299 A1 EP 0231299A1
Authority
EP
European Patent Office
Prior art keywords
video
image
picture
images
formatting
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.)
Withdrawn
Application number
EP19860904775
Other languages
German (de)
English (en)
Inventor
Günther Krause
Ramin Azizi-Namini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0231299A1 publication Critical patent/EP0231299A1/fr
Withdrawn legal-status Critical Current

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
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/107—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating tapes
    • 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
    • G11B27/11—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
    • 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
    • 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
    • G11B27/322—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 used signal is digitally coded
    • 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
    • G11B27/327—Table of contents
    • G11B27/328—Table of contents on a tape [TTOC]
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • 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

Definitions

  • the invention relates to a method for formatting video tapes via the video and / or audio track, in which picture number signals and other data are written on the video and / or audio track.
  • a suitable formatting is of importance in order to achieve precise positioning, in particular with regard to controllers for controlling video tape devices by computers.
  • controllers for controlling video tape devices essentially only have the possibility of positioning special video devices, so-called professional video recorders, by means of commands via a serial interface.
  • the aim of the present invention is to create a video recorder controller as a connection between a computer and a video device, wherein the possibilities of a video recorder for a computer system are to be developed as comprehensively as possible. In this case, it should be made possible to issue commands for positioning the video recorder via a standard interface of the computer.
  • the closer object of the invention derives a method for formatting Video ⁇ bands according to 'the initially mentioned type, which allows effectively forming an exact positioning as possible.
  • Is available it can be formatted using a serial data stream.
  • the image control pulses can be used for the rough positioning and if the formatting pulses fail. In all other cases, the rough positioning is carried out using a time-distance function.
  • the following embodiments of the method according to the invention come into consideration: • Formatting in the video track during the copying process or the production of the tape. Image information, in particular image number, is written into the blanking gap of the video signal as serial data.
  • gray images are written at suitable intervals, the brightness value being averaged from a number of previous images in order not to impair the visual impression.
  • the gray images contain the image information in the blanking interval.
  • the video tape is read completely once. Suitable features are calculated from the picture contents, then stored as a hash code in a table under the corresponding picture number. The positioning takes place in such a way that the corresponding hash code for the image contents is continuously generated from abstracted features during the playback and is then searched for in the hash table, which in turn returns the image information.
  • the hash code table can either be stored at an unused location on the video tape or on a separate medium. In order to store any data, texts, tables of contents, etc., in cases in which the audio track may be used, it can be used for this purpose.
  • the fine positioning of the playback process takes several seconds due to the fact that the tape has to be threaded in and out, it is not necessary to write the image number in each (half) image, but in accordance with the invention it is sufficient to do this at larger intervals of, for example, 50 to 100 images. Any data can be written into the remaining images.
  • the picture number information also does not need to be completely housed in a (half) picture, but it is advisable to distribute this information over several pictures in favor of secure data storage. However, in order to avoid sequence errors during overflow (e.g. 999 after 1000), the image number read in this way may only be updated after it has been completely received.
  • the method according to the invention enables image-precise positioning in a very effective manner, which is in no way affected by the fact that data can also be written between the formatting pulses.
  • the image-accurate positioning is an important basis 110 for the desired universally usable video recorder controller, which consists of a basic computer system which has several parallel, one serial interface and at least one interrupt input.
  • Commands and 115 data can be exchanged between the controller and a computer with a corresponding interface via the serial interface.
  • the parallel interfaces serve as an interface between the controller and the video tape recorder, the basic functions of the video recorder being able to be controlled 120 and certain status signals being queried on various video recorder models.
  • the interrupt input is used to evaluate control pulses that are accessible on various video recorders on externally attached connections.
  • a cassette interface is connected to the connector for the second serial channel, which in turn can be used to write data to an audio track of the video recorder and read it again.
  • An interface is connected to the connector for the second serial channel, which with a relatively high transmission speed transfers data into the blanking gap in a standard video signal can write and read again.
  • the transmitter clock and the receiver clock are synchronized with the data to be transmitted.
  • a clock generator is triggered by the interrupt signal derived from the line or picture synchronizing pulse.
  • positioning data are recorded on the video tape via A or B (formatting), which are then used for precise positioning.
  • the trade fair staff can be relieved by interactively using the visitors
  • FIG. 6 shows a hash code table belonging to FIG. 5.
  • the section t illustrates the formatting of a video tape over 210 the audio track, the section t corresponding to the threading / unthreading time for the video tape 1 and the section t ⁇ to the time interval between the picture number signals 2 in the audio track.
  • the threading / unthreading time t which is approximately 0.5 to 3 seconds, the audio signals cannot be read. It is therefore sufficient if the picture number signals are written at intervals of approximately 10 to 150 pictures.
  • the section t between the image number signals, which represents free space, so to speak, can be used for other data.
  • the correct image number is determined during t B 220 by counting the image pulses from the video track.
  • the video information already represents formatting.
  • the picture number signals in the audio track therefore only set the absolute picture counter reading.
  • the current meter reading is only inserted into an auxiliary field at point A and is completely adopted as a picture number.
  • FIG. 3 shows, a video signal S. coming from a video recorder (copying method) or from a video camera (recording method) is input directly and the respective image 245 synchronizing pulse I is input to a mixing part 4 via an image number generator 3, the output signal of which is sent to the video component signal S2 with picture number data correspondingly inscribed in the blanking intervals of the picture synchronizing pulses.
  • the signal S2 is then recorded by a video recorder.
  • FIG. 5 and 6 show a further embodiment of the method according to the invention for formatting video tapes, in which the video images (FIG. 5) are recognized via selected features, the contents of which as a hash code in a hash code.
  • Code table (Fig. 6) can be saved under the corresponding image numbers. To the in 5 marked points 5, the brightness is measured, for example, when the entire video tape is read completely once. The corresponding measured values are used to construct the hash code table according to FIG. 6, which is stored on a vacant position on the video tape or on an external medium, such as a floppy disk. The stored hash codes are used for recognition and thus for determining the image number during the positioning process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

Dans un procédé de mise en forme de bandes vidéo (1) par l'intermédiaire de la piste vidéo et/ou audio, des signaux des numéros d'images (2) et d'autres données sont inscrits sur la piste vidéo et/ou audio. Afin d'assurer un positionnenent précis de l'image de manière rentable et efficace, et ainsi de fournir la base d'un contrôleur universel de magnétoscope comportant un système ordinateur de base, les signaux des numéros d'images sont introduits sur la piste vidéo et/ou audio par intervalles de temps (tb) et la région de la piste vidéo et/ou audio comprise entre les signaux des numéros d'images est utilisée pour inscrire d'autres données. Le numéro d'images réel peut être déterminé durant l'intervalle du temps en comptant les impulsions d'images sur la piste vidéo. Les signaux des numéros d'images sur la piste audio reproduisent uniquement l'état absolu du compteur d'images.
EP19860904775 1985-08-06 1986-08-04 Procede de mise en forme de bandes video Withdrawn EP0231299A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853528578 DE3528578A1 (de) 1985-08-06 1985-08-06 Verfahren zur formatierung von videobaendern ueber die video- und/oder audiospur
DE3528578 1985-08-06

Publications (1)

Publication Number Publication Date
EP0231299A1 true EP0231299A1 (fr) 1987-08-12

Family

ID=6278095

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860904775 Withdrawn EP0231299A1 (fr) 1985-08-06 1986-08-04 Procede de mise en forme de bandes video

Country Status (4)

Country Link
EP (1) EP0231299A1 (fr)
JP (1) JPS63500407A (fr)
DE (1) DE3528578A1 (fr)
WO (1) WO1987000958A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3877020D1 (de) * 1987-03-13 1993-02-11 Studer Revox Ag Verfahren und vorrichtung zum bearbeiten von folgen von werten, die auf einem aufzeichnungstraeger aufgezeichnet sind.

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4212037A (en) * 1969-03-17 1980-07-08 Lemelson Jerome H Method for scanning a card with video signal
JPS556277B1 (fr) * 1970-06-23 1980-02-14
US3721757A (en) * 1971-02-08 1973-03-20 Columbia Broadcasting Syst Inc Method and apparatus for automatically editing television information
US4134130A (en) * 1976-07-30 1979-01-09 Sony Corporation Method and apparatus of inserting an address signal in a video signal
FR2404873A1 (fr) * 1977-09-30 1979-04-27 Sogitec Systeme de telecommande d'un appareil de reproduction d'informations de type audiovisuel
JPS55120273A (en) * 1979-03-09 1980-09-16 Matsushita Electric Ind Co Ltd Recording and reproducing device
FR2458874A1 (fr) * 1979-06-13 1981-01-02 France Etat Systeme d'enregistrement d'informations de pietage sur une bande magnetique de magnetoscope
DE2939912A1 (de) * 1979-10-02 1981-04-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zum auffinden eines speicherplatzes auf einem aufzeichnungstraeger
JPS56154885A (en) * 1980-04-30 1981-11-30 Sony Corp Recording medium
EP0051716A3 (fr) * 1980-11-06 1982-12-01 Norddeutsche Mende Rundfunk KG Procédé pour équiper une bande-vidéo avec un code d'identification
JPS58121186A (ja) * 1982-01-08 1983-07-19 Toshiba Corp Ｖｃｒ画像フアイル検索方式
GB2131996A (en) * 1982-11-30 1984-06-27 George Saint Data storage devices
JP2733502B2 (ja) * 1982-12-22 1998-03-30 レックス・コンピュータ・アンド・マネジメント・コーポレーション ビデオ編成方法及び装置
US5039795A (en) * 1989-06-21 1991-08-13 E. R. Squibb & Sons, Inc. Preparation of boronic acid derivatives

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8700958A1 *

Also Published As

Publication number Publication date
WO1987000958A1 (fr) 1987-02-12
DE3528578C2 (fr) 1988-06-30
JPS63500407A (ja) 1988-02-12
DE3528578A1 (de) 1987-02-19

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