WO2002043383A1 - Organisation de donnees audio et video enregistrees sur une unite de disque dur - Google Patents

Organisation de donnees audio et video enregistrees sur une unite de disque dur Download PDF

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Publication number
WO2002043383A1
WO2002043383A1 PCT/US2001/043466 US0143466W WO0243383A1 WO 2002043383 A1 WO2002043383 A1 WO 2002043383A1 US 0143466 W US0143466 W US 0143466W WO 0243383 A1 WO0243383 A1 WO 0243383A1
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WO
WIPO (PCT)
Prior art keywords
video
areas
area
audio
recording
Prior art date
Application number
PCT/US2001/043466
Other languages
English (en)
Inventor
Shu Lin
Original Assignee
Thomson Licensing S.A.
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 Thomson Licensing S.A. filed Critical Thomson Licensing S.A.
Priority to AU2002226914A priority Critical patent/AU2002226914A1/en
Publication of WO2002043383A1 publication Critical patent/WO2002043383A1/fr

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Classifications

    • 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
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G11B20/1258—Formatting, e.g. arrangement of data block or words on the record carriers on discs where blocks are arranged within multiple radial zones, e.g. Zone Bit Recording or Constant Density Recording discs, MCAV discs, MCLV discs
    • 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
    • H04N5/781—Television signal recording using magnetic recording on disks or drums
    • 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
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G11B2020/10537—Audio or video recording
    • 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
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G11B2020/1218—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc
    • G11B2020/1242—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc the area forming one or more zones, wherein each zone is shaped like an annulus or a circular sector
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
    • 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
    • H04N5/783—Adaptations for reproducing at a rate different from the recording rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N5/9201—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving the multiplexing of an additional signal and the video signal
    • H04N5/9205—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving the multiplexing of an additional signal and the video signal the additional signal being at least another television signal

Definitions

  • the invention relates generally to hard disk drives and, more particularly, to organization of video and audio data recorded on a hard disk drive.
  • laser discs and video CDs have been developed as optical storage media for storing multimedia data such as digital moving picture data, audio data and sub-picture data.
  • VCR videocassette recorder
  • VCR videocassette recorder
  • reverse playback slow-reverse playback
  • frame-by-frame-reverse playback in addition to standard playback, fast forward, and fast reverse capabilities.
  • digital video signal reproduction devices With the development of digital video signal recording technology, it is expected that digital video signal reproduction devices will provide similar playback functionality with improved image quality.
  • current hard disk drive recording formats for audio and video data do not provide these functions with the same proficiency as provided by videocassette recorders. Playback features from hard disk drive recordings of video and audio data under current formats are very limited in both capabilities and quality.
  • a method of storing multimedia data including video data and audio data onto a storage medium includes recording video data in a first area on said storage medium that is intended for video information, and recording audio data in a second area on said storage medium intended for audio information, said first and second areas being adjacent to one another.
  • the storage medium is a hard disk drive and the first and second areas are concentric and distinct circular ring areas.
  • a method of organizing recordation of video and audio data onto a storage medium includes organizing storage areas on said storage medium into a plurality of pairs of distinct video and audio zone areas, maintaining no overlap between individual said video and audio zone areas and no overlap between pairs of related video and audio zone areas, and locating said video and audio zone areas for each said pair proximal to each other.
  • a method for recording multiple programs of video and related audio information on a hard disk drive includes multiplexing video and audio data from each program into a single data stream, dividing a hard disk drive into multiple zones of a first type and a second type, each type of said zones always being adjacent to a different type of said zone, and recording multiplexed video and audio data from each program into a different one of said zones.
  • Fig. 1 is an exemplary diagram of an the inventive organization of video and audio zones on a hard disk drive.
  • Fig, 2 shows an inventive organization of multiple video and audio zones.
  • FIG. 3 shows a normal recording zone and an additional time shifting zone.
  • Fig. 4 shows separate video and audio zones in time shifting and sequential placement.
  • Fig. 5 shows multiple video and audio zones used for separate video and audio recordings.
  • Fig. 6 shows multiple zones used for multiple program recording.
  • AV recording on a hard disk drive is a new application for which there is no standard.
  • Important features for consumers playing back audio and video data recorded on a hard disk drive include trick play, and multiple simultaneous recording and playback.
  • the organization of AV data on a hard disk drive is essential for these type of AV applications.
  • AV applications such as trick play and, multiple and simultaneous recording playback, are facilitated by the inventive organization of audio and video (AV) data on a hard disk drive (HDD) .
  • the present invention solves the problem of how to store separate audio and video files, and how to store multiple streams of video and audio files.
  • the schematic 10 of Fig. 1 depicts an inventive organization of video and audio recordings on a hard disk drive.
  • An inner audio zone 2 is surrounded by an outer video zone 1 .
  • Only an audio file/data is stored in the audio zone 2 and only a video file/data is stored in the video zone 1 .
  • the recording is also one way directional for both video and audio information.
  • the size of each of the video and audio zones depends on the application involved. For example, an application has typical bit-rates for audio and video streams. If it is assumed that the video bit rate is Vb and the audio bit rate is Va, then we have the relationship that the size of video zone to the size of the audio zone is proportional to Vb/Va. Restated as a mathematical formula:
  • a hard disk drive can be divided into multiple zones of alternative video and audio data, as shown 20 in Fig. 2.
  • Advantages from multiple zones include avoiding frequent large scan jumps across the hard disk drive during playback, less frequent scans back and forth during playback which reduces hard disk drive noise, and an increase in hard disk drive life.
  • the sizes of adjacent video and audio zones 21 and 22 are also determined by the above formula relating the sizes of the video and audio zones and their respective bit rates.
  • the zones can be static assigned or dynamic assigned. If the zones are divided and they stay unchanged then they are static zones. On the other hand, if the zones can be changed from one recording to another then they are dynamic zones. Obviously, the dynamic zones use space more efficiently than static zones. This known size could be 5 minutes, 10 minutes, 30 minutes, or even 2 hours. In an audio zone, multiple audio streams can be recorded, but the size of the audio zone needs to be increased.
  • An AV recorder might require recording multiple programs simultaneously, such as recording one program and time shifting other programs. This involves recording two programs and playing back one program simultaneously.
  • the hard disk drive head moves back and forth to accomplish the recording of multiple programs simultaneously. How frequently the hard disk head drive moves back and forth depends on the buffer size and recording strategies.
  • the two programs can be converted into a single multiplexed program.
  • the multiplexer is required to multiplex the program streams into a single stream. After conversion, it becomes a simple sequential recording.
  • the disadvantage with this method is that while you playback one program the other program needs to be filtered out. This requires an additional demultiplexer, buffer and more bandwidth.
  • the space of the deleted files cannot be reused until both programs are deleted. This would significantly reduce the available hard disk capacity.
  • a certain amount of space can be reserved for the time shifting, as shown 30 in Fig. 3.
  • the normal recording zone 32 which includes video and audio zones, is surrounded by a time shifting zone 31 .
  • the time shifting works like a circular buffer.
  • the time shifting program will not be kept unless it is copied to another area before the space is reused.
  • the normal recording program is treated as a single stream, one directional recording.
  • the hard disk drive is divided into two spaces, one space for normal recording and the other space for time shifting. This is depicted 40 in Fig. 4 showing separate video and audio zones, 41 and 42, 43 and 44, in time shifting and sequential organizations.
  • FIG. 5 Application of the inventive organization of multiple video and audio zones for recording multiple programs with separate video and audio data recorded is shown 50 in Fig. 5.
  • An outer video and audio pair of zones 51 and 52 surround a second pair of video and audio zones 53 and 54.
  • the second video and audio zone pair 53 and 54 surrounds a third video and audio pair of zones 55 and 56.
  • the third video and audio zone pair 55 and 56 surround a central video and audio zone pair 57 and 58.
  • audio and video data from the same single program are multiplexed into a single data stream.
  • the hard disk drive is divided into multiple zones as shown 60 in Fig. 6. There are two kinds of zones, an even zones 62 and an odd zone 61 . If two data streams are recorded simultaneously then one stream is recorded in an odd zone and the other stream is recorded in an adjacent even zone if it is available. If an adjacent even zone 62 is not available, then the nearest even zone 62 would be used. In this manner the time shifting program can be maintained. A zone can be partially recorded with the remaining space used for the next recording.

Landscapes

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

Abstract

Un procédé d'organisation de l'enregistrement de fichiers de données vidéo et audio sur une unité de disque dur consiste à enregistrer les données vidéo dans une première région circulaire (Fig. 1, Vidéo 1) puis à enregistrer les données audio se rapportant aux données vidéo dans une deuxième région circulaire (Fig. 1, Audio 2). De préférence, les première et deuxième régions circulaires sont concentriques et ne comportent pas de parties qui se chevauchent entre ces dernières (Fig. 1). Plusieurs paires de données vidéo et audio peuvent être enregistrées sur de multiples régions circulaires concentriques (Figs. 2 et 4-5, Audio et Vidéo).
PCT/US2001/043466 2000-11-21 2001-11-21 Organisation de donnees audio et video enregistrees sur une unite de disque dur WO2002043383A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002226914A AU2002226914A1 (en) 2000-11-21 2001-11-21 Organization of audio and video on a hard disk drive

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US71784800A 2000-11-21 2000-11-21
US09/717,848 2000-11-21

Publications (1)

Publication Number Publication Date
WO2002043383A1 true WO2002043383A1 (fr) 2002-05-30

Family

ID=24883728

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/043466 WO2002043383A1 (fr) 2000-11-21 2001-11-21 Organisation de donnees audio et video enregistrees sur une unite de disque dur

Country Status (2)

Country Link
AU (1) AU2002226914A1 (fr)
WO (1) WO2002043383A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7515814B2 (en) * 2004-02-24 2009-04-07 Sony Corporation Reproducing apparatus and reproducing method for video and audio data paired as growth rings

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4931878A (en) * 1985-02-12 1990-06-05 Canon Kabushiki Kaisha Recording apparatus which is capable of recording two kinds of signals by operation of a single member
WO1992022983A2 (fr) * 1991-06-11 1992-12-23 Browne H Lee Enregistreur-lecteur de grandes capacites, a acces selectif et a sources multiples
US5371551A (en) * 1992-10-29 1994-12-06 Logan; James Time delayed digital video system using concurrent recording and playback
US5386402A (en) * 1993-11-29 1995-01-31 Kabushiki Kaisha Toshiba Access control apparatus and address translation method for disk storage device
EP0738081A2 (fr) * 1995-03-27 1996-10-16 Hewlett-Packard Company Méthode et système pour le stockage de programmes vidéo
US5568274A (en) * 1992-09-22 1996-10-22 Sony Corporation Apparatus and method for processing a variable-rate coded signal for erecording to provide a high-speed search capability, apparatus and method for reproducing such processed signal, and recording including such processed signal
US5701383A (en) * 1994-05-20 1997-12-23 Gemstar Development Corporation Video time-shifting apparatus
US5991496A (en) * 1995-11-29 1999-11-23 Sony Corporation Recording/reproducing apparatus and method thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4931878A (en) * 1985-02-12 1990-06-05 Canon Kabushiki Kaisha Recording apparatus which is capable of recording two kinds of signals by operation of a single member
WO1992022983A2 (fr) * 1991-06-11 1992-12-23 Browne H Lee Enregistreur-lecteur de grandes capacites, a acces selectif et a sources multiples
US5568274A (en) * 1992-09-22 1996-10-22 Sony Corporation Apparatus and method for processing a variable-rate coded signal for erecording to provide a high-speed search capability, apparatus and method for reproducing such processed signal, and recording including such processed signal
US5371551A (en) * 1992-10-29 1994-12-06 Logan; James Time delayed digital video system using concurrent recording and playback
US5386402A (en) * 1993-11-29 1995-01-31 Kabushiki Kaisha Toshiba Access control apparatus and address translation method for disk storage device
US5701383A (en) * 1994-05-20 1997-12-23 Gemstar Development Corporation Video time-shifting apparatus
EP0738081A2 (fr) * 1995-03-27 1996-10-16 Hewlett-Packard Company Méthode et système pour le stockage de programmes vidéo
US5991496A (en) * 1995-11-29 1999-11-23 Sony Corporation Recording/reproducing apparatus and method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7515814B2 (en) * 2004-02-24 2009-04-07 Sony Corporation Reproducing apparatus and reproducing method for video and audio data paired as growth rings

Also Published As

Publication number Publication date
AU2002226914A1 (en) 2002-06-03

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