Case 5:23-cv-00152-RWS Document 1-2 Filed 12/29/23 Page 1 of 13 PageID #: 67
`Case 5:23-cv-00152-RWS Document1-2 Filed 12/29/23 Page 1of13 PagelD #: 67
`
`EXHIBIT 1
`EXHIBIT 1
`
`

`

`(12) United States Patent
`Takahashi et al.
`
`USOO685676OB2
`US 6,856,760 B2
`*Feb. 15, 2005
`
`(10) Patent No.:
`(45) Date of Patent:
`
`(54) RECORDING MEDIUM
`(75) Inventors: Masaru Takahashi, Yokohama (JP);
`Junji Shiokawa, Chigasaki (JP)
`Assignee: Hitachi, Ltd., Tokyo (JP)
`Notice:
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 0 days.
`
`(73)
`(*)
`
`This patent is Subject to a terminal dis
`claimer.
`
`(21)
`(22)
`(65)
`
`Appl. No.:
`10/191,504
`Jul. 10, 2002
`Filed:
`Prior Publication Data
`US 2002/0181945 A1 Dec. 5, 2002
`Related U.S. Application Data
`(63) Continuation of application No. 09/446,338, filed on Dec.
`20, 1999, now Pat. No. 6,424,795.
`Foreign Application Priority Data
`(30)
`Jul. 5, 1999
`(JP) ......................................... P11-1898.68
`(51) Int. Cl. ........................... H04N 5/91; H04N 5/225
`(52) U.S. Cl. ....................... 386/120; 386/117; 348/220;
`348/232
`(58) Field of Search ................................. 386/120, 117,
`386/112, 121, 124, 125; 348/220.1, 231.99,
`333.05
`
`(56)
`
`References Cited
`
`U.S. PATENT DOCUMENTS
`
`4,691.253 A
`
`9/1987 Silver
`
`5,138.459 A 8/1992 Roberts et al.
`5,444,482 A 8/1995 Misawa et al.
`5,583,653 A 12/1996 Timmermans ............... 386/46
`5.987,179 A 11/1999 Riek et al.
`6,195,503 B1
`2/2001 Ikedo et al.
`6,226,449 B1
`5/2001 Inoue et al.
`6,300,976 B1 10/2001 Fukuoka
`6,356,709 B1 * 3/2002 Abe et al.................... 386/117
`6.424,795 B1 * 7/2002 Takahashi et al. .......... 386/120
`6,512,548 B1
`1/2003 Anderson .............. 348/333.05
`
`FOREIGN PATENT DOCUMENTS
`
`JP
`JP
`JP
`JP
`JP
`JP
`WO
`
`7-212712
`7-327 196
`10-108121
`10-108133
`10-200859
`1O-233995
`WO 92/09 169
`
`8/1995
`12/1995
`4/1998
`4/1998
`7/1998
`9/1998
`5/1992
`
`OTHER PUBLICATIONS
`
`HDTV MPEG2, pp. 128-164.
`* cited by examiner
`
`Primary Examiner Vincent Boccio
`(74) Attorney, Agent, or Firm-Antonelli, Terry, Stout &
`Kraus, LLP
`ABSTRACT
`(57)
`A recording medium which records thereon moving pictures
`encoded by a first encoding method, first pictures corre
`sponding to the moving pictures and which have pixels
`Smaller than the moving pictures, Still pictures encoded by
`a Second encoding method, and Second pictures correspond
`ing to the Still pictures and which have pixels Smaller than
`the Still pictures.
`
`15 Claims, 3 Drawing Sheets
`
`Case 5:23-cv-00152-RWS Document 1-2 Filed 12/29/23 Page 2 of 13 PageID #: 68
`
`103
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`ing unit
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`104
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`109
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`115
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`202
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`203
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`WRAUDIO, WRO
`WRMANGR.FO
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`00000001.jpg
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`
`- 00000003.jpg
`
`

`

`U.S. Patent
`
`Feb. 15, 2005
`
`Sheet 1 of 3
`
`US 6,856,760 B2
`
`FG.1
`
`- -
`
`105
`moving
`picture
`CO
`pressing
`unit
`
`112
`
`113
`
`multi
`plexing
`unit
`
`recording
`Control
`unit
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`s Still
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`pressing 106
`unit
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`
`101 102
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`audio
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`FG.2
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`
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`
`
`Root Directory
`
`DVD RTAV
`
`Case 5:23-cv-00152-RWS Document 1-2 Filed 12/29/23 Page 3 of 13 PageID #: 69
`
`- JPEG
`
`system
`control
`unit
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`115
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`SW 116
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`WR MOVE. WRO
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`WR STILL WRO
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`WR AUD!O, WRO
`WR MANGR. IFO
`
`00000001.jpg
`
`00000002.jpg
`
`00000003.jpg
`
`

`

`U.S. Patent
`
`Feb. 15, 2005
`
`Sheet 2 of 3
`
`US 6,856,760 B2
`
`FG3
`
`101 102
`
`1 O3
`
`107
`
`105
`
`112
`
`113
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`p
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`
`Case 5:23-cv-00152-RWS Document 1-2 Filed 12/29/23 Page 4 of 13 PageID #: 70
`
`
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`VR STILL VRO
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`00000001.jpg
`00000002.jpg
`00000003.jpg
`
`t0000001.jpg
`t0000002.jpg
`t0000003.jpg
`
`

`

`U.S. Patent
`
`Feb. 15, 2005
`
`Sheet 3 of 3
`
`US 6,856,760 B2
`
`FG.5
`120
`moving
`picture
`expand-
`ing unit
`
`thumb nail
`picture
`expanding
`unit
`
`122
`
`121
`124
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`memory
`unit
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`memory
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`123
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`118
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`
`119
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`114
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`128
`system
`Control
`unit
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`input
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`Y- 129
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`
`Case 5:23-cv-00152-RWS Document 1-2 Filed 12/29/23 Page 5 of 13 PageID #: 71
`
`Contro
`unit
`
`
`
`
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`moving
`picture
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`ing unit
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`memory
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`123
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`audio
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`
`131
`
`Speaker
`
`

`

`1
`RECORDING MEDIUM
`
`US 6,856,760 B2
`
`CROSS REFERENCE TO RELATED
`APPLICATION
`This is a continuation of U.S. application Ser. No. 09/446,
`338, filed Dec. 20, 1999, now U.S. Pat. No. 6,424,795 the
`Subject matter of which is incorporated by reference herein.
`
`FIELD OF THE INVENTION
`The present invention relates to an apparatus and a
`method for recording moving and Still pictures, and an
`apparatus and a method for reproducing recorded moving
`and Still pictures, as well as a recording medium.
`
`15
`
`25
`
`35
`
`BACKGROUND ART
`Recently, along with tendency toward large Scale in
`capacity of recording medium Such as rewritable optical
`disks, etc. and with improvement in techniques for com
`pressing moving pictures, the techniques for digital cameras
`and recordable players, etc. that have the function of record
`ing moving pictures on optical disks have been reviewed.
`Under the situation, recordings of both moving and Still
`pictures on optical disks in a common format have coming
`into reality.
`AS Such a compression method, it would be advantageous
`to use the MPEG (Moving Picture Expert Group) standard
`for recording moving pictures from the Viewpoint of com
`pression efficiency. The MPEG standard is a well-known
`technique described in, for example, “The Latest Guidebook
`to MPEG” (ASCII Co., Ltd., Aug. 1, 1994), etc. The detailed
`description for the MPEG will thus be omitted here.
`As for a compression method for still pictures, the JPEG
`(Joint Photographic coding Experts Group) standard used
`for recording digital Still pictures from general electronic
`Still cameras may be replaced with another method if the
`method can record the data equivalent to one frame of
`moving pictures recorded by the MPEG as I picture. If the
`recordable player described above has a means for expand
`40
`ing pictures compressed by, for example, the MPEG com
`pression method, and then both moving and Still pictures can
`be reproduced. In this case, it is no need to use Such an
`expanding means as JPEG for reproducing pictures, thereby
`the cost of the reproducing System can be reduced.
`However, the data must be processed fast to encode
`moving pictures in real time and it is impossible to increase
`the number of pixels per frame of moving pictures So much.
`For example, the maximum number of pixels per frame is
`720 in the horizontal direction and 480 in the vertical
`direction on the encoding level referred to as the main profile
`main level which handles the resolution of the present TV
`sets, required for the MPEG method. On the other hand, the
`encoding time for one sheet of Still pictures is not limited So
`strictly, so that the number of pixels to be handled in
`accordance with the high resolution of the object photo
`graphing element can be increased. Consequently, most of
`the present electronic still cameras can record Still pictures
`with the use of the JPEG compression method and the
`number of pixels to be handled by those cameras is being
`increased year after year.
`In order to enable any reproducing apparatuS Such as
`recordable players and ordinary players to reproduce data on
`the basis of the MPEG, as well as record high resolution still
`pictures, it is only needed to record both MPEG I pictures
`and JPEG file pictures. Such techniques are disclosed in, for
`example, the Japanese Patent Unexamined Publication
`
`45
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`50
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`Case 5:23-cv-00152-RWS Document 1-2 Filed 12/29/23 Page 6 of 13 PageID #: 72
`
`2
`No. 10-108133. According to the disclosed techniques, pic
`tures is encoded and recorded with a plurality of different
`methods at a time and both moving and Still pictures are
`encoded and recorded Simultaneously. The conventional
`techniques, however, do not consider encoding of Still
`pictures read from a fine photographing element with the use
`of such an encoding method as MPEG for moving pictures.
`In particular, no care is paid for the difference in reading
`pictures from a photographing element between reading fine
`Still pictures and reading moving pictures.
`Furthermore, the above conventional techniques do not
`consider any correspondence to recordings of both moving
`and Still pictures, although they can record both encoded Still
`pictures and partial Still pictures So as to make it easier for
`an user to control the apparatus, for example, for Searching
`pictures when in reproducing.
`
`DISCLOSURE OF THE INVENTION
`Generally, the number of pixels to be read from a pho
`tographing element within a unit time is limited. The number
`of pixels to be read per frame of moving pictures therefore
`is also limited. On the other hand, a long time can be spared
`to read a large number of pixels from Still pictures slowly.
`Consequently, if an apparatus that employs a fine photo
`graphing element is used to record fine Still pictures, a sheet
`of pictures is read by Spending a time required for reading
`one or more frames. The reading method thus comes to differ
`between moving picture and Still pictures.
`Under the circumstances, it is the first object of the
`present invention to provide an apparatus and a method for
`recording pictures, which are preferred to Solve the above
`conventional problems and enable recordable players and
`other ordinary players which reproduce moving pictures to
`reproduce and record fine Still pictures, as well.
`It is the Second object of the present invention to provide
`an apparatus and a method for recording pictures, which is
`more improved in controlling Such reproducing operations
`as Searching even when in recording both moving and Still
`pictures, as well as a recording medium in which pictures are
`recorded as described above.
`Furthermore, it is the third object of the present invention
`to provide an apparatus and a method for reproducing both
`moving and Still pictures, which can reproduce the recording
`medium on which pictures are recorded with the use of the
`recording apparatus and the recording method described
`above, as well as improved more in controlling Such repro
`ducing operations as Searching and composed simply.
`In order to achieve the first object, the recording method
`of the present invention used for a Video recording apparatus
`that can record both moving and Still pictures on a recording
`medium includes Steps for recording moving pictures
`encoded with the use of the first encoding method when in
`recording moving pictures, and for recording Still pictures
`encoded with the use of the Second encoding method and
`other Still pictures encoded by the first encoding method
`from Single frame signals obtained from the Still pictures
`when in recording Still pictures. Furthermore, the Video
`recording apparatus of the present invention comprises
`optical focusing means composed of an optical lens System;
`photoelectric converting means for converting pictures
`focused by the optical focusing means to electric Signals,
`Signal processing means for converting electric Signals con
`verted by the photoelectric converting means to Video Sig
`nals, driving means provided with two modes (moving
`picture photographing mode and Still picture photographing
`mode) So as to drive reading of electric signals from the
`
`

`

`4
`recorded together with other still pictures encoded by the
`moving encoding means from Single frame Signals obtained
`from the still pictures, and further other still pictures whose
`Screen is compressed by the Screen compressing means.
`Furthermore, the present invention provides the recording
`method characterized in that when in recording of moving
`pictures, moving pictures are recorded together with a Still
`picture obtained by compressing the Signals of a frame
`representing the moving pictures to record and when in
`recording of Still pictures, Still pictures obtained by com
`pressing the Single frame Signals to be encoded by the first
`encoding method is also recorded. The Video recording
`apparatus further includes Screen compressing means for
`compressing the Screen of pictures of a frame representing
`moving picture Signals to record when in recording moving
`pictures and compressing the Screen of Single frame signals
`obtained from the still pictures when in recording still
`pictures, So that when in recording moving pictures, the
`moving pictures encoded by the moving picture encoding
`means are recorded together with the Still pictures whose
`Screen is compressed by the Screen compressing means and
`when in recording Still pictures, the Still pictures encoded by
`the Still picture encoding means are recorded together with
`Still pictures encoded by the moving picture encoding means
`from Single frame Signals obtained from the Still pictures, as
`well as other Still pictures whose Screen is compressed by the
`Screen compressing means.
`The present invention also provides a recording method
`for recording a still picture obtained by compressing Signals
`of a frame representing the moving pictures to record when
`in recording moving pictures and recording either com
`pressed still pictures or still pictures obtained by compress
`ing Single frame signals to be encoded by the first encoding
`method. In this case, the Video recording apparatus of the
`present invention further includes Screen compressing
`means for compressing the Screen of pictures of a frame
`representing the object moving picture Signals when in
`recording moving pictures and compressing the Screen of
`either the Still pictures or Single frame Signals obtained from
`the Still pictures when in recording Still pictures, So that
`when in recording moving pictures, moving pictures
`encoded by the moving picture encoding means are recorded
`together with Still pictures whose Screen is compressed by
`the Screen compressing means and when in recording Still
`pictures, Still pictures encoded by the Still picture encoding
`means are recorded together with other Still pictures encoded
`by the moving picture encoding means from Single frame
`Signals obtained from the same Still pictures, and further
`other Still pictures whose Screen is compressed by the Screen
`compressing means.
`Furthermore, the present invention further provides a
`recording medium on which moving pictures encoded by the
`first encoding means are recorded together with Still pictures
`obtained by compressing the Screen of a representative one
`of the moving pictures, other Still pictures encoded by the
`Second encoding method, Single frame moving pictures
`created from the Still pictures encoded by the first encoding
`method, and further other Still pictures whose Screen is
`compressed.
`In order to achieve the third object of the present
`invention, the present invention provides a reproducing
`method that can reproduce the above recording medium,
`wherein it is possible to reproduce and output Single frame
`moving pictures created from the Still pictures encoded by
`the first encoding method corresponding to the Selected Still
`picture to at least one output destination when a still picture
`whose Screen is compressed is Selected and called. In this
`
`Case 5:23-cv-00152-RWS Document 1-2 Filed 12/29/23 Page 7 of 13 PageID #: 73
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`US 6,856,760 B2
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`5
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`15
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`3
`photoelectric converting means So that the Video signals are
`converted to predetermined moving picture Signals in the
`moving photographing mode and drive reading of electric
`Signals from the photoelectric converting means So that the
`Video signals are converted to Video Signals finer than the
`moving picture Signals in the Still picture photographing
`mode, Signal converting means for converting the Signal
`format of fine video signals in the Still picture photographing
`mode to the same format as that of Single frame moving
`picture Signals in the moving picture photographing mode,
`moving picture encoding means for encoding moving pic
`ture Signals output from the Signal processing means with
`the use of the first encoding method in the moving picture
`photographing mode and encoding Single frame signals
`output from the Signal converting means with the use of the
`first encoding method in the Still picture photographing
`mode, Still picture encoding means for encoding fine video
`Signals with the use of the Second encoding method in the
`Still picture photographing mode, recording controlling
`means for controlling a recording medium for recording
`encoded moving and Still pictures and recording of moving
`and Still pictures on the recording medium; System control
`ling means for controlling each of the above means one
`dimensionally; and Selecting means for Selecting one of the
`recording modes. The recording apparatus can thus record
`moving imageS encoded by the moving encoding means
`when in recording moving pictures and record Still pictures
`encoded by the Still picture encoding means, as well as other
`Still pictures encoded by the moving encoding means from
`Single frame Signals obtained from the Still pictures when in
`recording Still pictures.
`The video recording apparatus of the present invention
`further includes moving picture Storing means for Storing
`Single frame Signals output from the Signal converting
`means in the Still picture photographing mode, and Still
`picture Storing means for Storing fine Video Signals So that
`the recording apparatus records moving pictures by reading
`moving picture signals from the moving picture Storing
`means and encoding them with the use of the moving picture
`encoding means when in recording moving pictures and
`records Still pictures by reading Still pictures from the fine
`Still picture Storing means and encoding them with the use
`of the Still picture encoding means when in recording Still
`pictures, and also records fine Video Signals read from the
`moving picture Storing means and encoded by the moving
`picture encoding means. The fine Video Signals are Stored
`once in the Still picture Storing means before they are
`converted to Single frame Signals by the Signal converting
`means, then Stored in the moving picture Storing means.
`In order to achieve the Second object of the present
`invention, the present invention provides a recording
`method characterized in that when in recording moving
`pictures, moving pictures are recorded together with a Still
`picture obtained by compressing Signals of a frame repre
`Senting the moving pictures to record and when in recording
`Still pictures, compressed Still pictures are also recorded
`together with non-compressed Still pictures. The recording
`method also employs Screen compressing means for com
`pressing the Screen of pictures of a frame representing the
`moving picture Signals to record when in recording moving
`pictures and compressing the Screen of Still pictures to
`record when in recording Still pictures, So that when in
`recording of moving pictures, moving pictures encoded by
`the moving encoding means are recorded together with Still
`pictures whose Screen is compressed by the Screen com
`65
`pressing means and when in recording of Still pictures, Still
`pictures encoded by the Still picture encoding means are
`
`

`

`S
`case, the reproducing method allows a still picture corre
`sponding to the called Still picture to be output in accordance
`with the picture resolution of the output destination.
`Furthermore, the Video reproducing apparatus of the present
`invention further includes picture Selecting means for Speci
`fying one of reproduced Still pictures whose Screen is
`compressed; reproducing controlling means for controlling
`reproduction of Single frame moving pictures created from
`Still pictured encoded by the first encoding method corre
`sponding to the Selected Still picture when the Selected Still
`picture is a Still picture whose Screen is compressed: moving
`picture decoding means for decoding reproduced single
`frame moving pictures using the first encoding method.
`Furthermore, the present invention provides a reproduc
`ing method used for a Video reproducing apparatus that can
`reproduce the above recording medium, wherein a Single
`frame moving picture created from a still picture encoded by
`the first encoding method corresponding to a Selected Still
`picture is reproduced and displayed when a still picture
`whose Screen is compressed is Selected and called. In this
`case, the reproducing apparatus that uses the above repro
`ducing method is further provided with picture Selecting
`means for Specifying one of reproduced Still pictures whose
`Screen is compressed; reproducing control means for repro
`ducing Single frame moving pictures created from the Still
`pictures encoded by the first encoding means corresponding
`to the Selected Still picture when the Selected Still picture is
`a still picture whose Screen is compressed; moving picture
`decoding means for decoding the reproduced Single frame
`moving pictures using the first encoding method; and dis
`playing means for displaying decoded Single frame moving
`pictures.
`
`BRIEF DESCRIPTION OF THE DRAWINGS
`FIG. 1 is a System block diagram of a recording apparatus
`united with a camera in an embodiment of a Video recording
`apparatus of the present invention.
`FIG. 2 is a recording format of a recording medium used
`for the recording apparatus united with a camera.
`FIG. 3 is a System block diagram of a recording apparatus
`united with a camera in another embodiment of the video
`recording apparatus of the present invention.
`FIG. 4 is a recording format of a recording medium used
`for the recording apparatus united with a camera
`FIG. 5 is a System block diagram of a Video reproducing
`apparatus in an embodiment of the present invention.
`FIG. 6 is a System block diagram of the Video reproducing
`apparatus in another embodiment of the present invention.
`BEST MODE FOR CARRYING OUT THE
`INVENTION
`Hereunder, the embodiments of the present invention will
`be described with reference to the accompanying drawings.
`<First Embodiment>
`FIG. 1 is a System block diagram indicating a Video
`recording apparatus united with a camera in an embodiment
`of the present invention In FIG. 1, numeral 101 is an optical
`lens for focusing an object picture and 102 is a CCD sensor,
`which is photoelectric converting means for converting the
`light of focused pictures to electric signals. Numeral 103 is
`a signal processing unit for converting picture information
`converted to electric signals further to video signals and 104
`is a driving unit for driving the CCD sensor. Numeral 105 is
`a moving picture compressing unit for compressing Video
`Signals in accordance with Such an encoding Standard as
`
`Case 5:23-cv-00152-RWS Document 1-2 Filed 12/29/23 Page 8 of 13 PageID #: 74
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`US 6,856,760 B2
`
`6
`MPEG used for moving pictures. Numeral 106 is a fine still
`picture compressing unit for compressing video signals in
`accordance with Such an encoding Standard as JPEG used
`for fine still pictures and 107 is a moving picture memory for
`Storing pictures temporarily when the moving picture com
`pressing unit 105 performs a compression processing.
`Numeral 108 is a still picture memory for storing pictures
`temporarily when the fine still picture compressing unit 106
`performs a compressing processing. Numeral 109 is a signal
`converting unit for converting the Signal format of fine Still
`Signals to the same Signal format as that of Single frame
`moving picture Signals. Numeral 110 is a microphone for
`converting collected audios to electric audio Signals and 111
`is an audio compressing unit for converting audio signals to
`digital Signals and compressing predetermined digital
`audios. Numeral 112 is a multiplexing unit for multiplexing
`compressed moving picture Streams generated in the moving
`picture compressing unit 105 and compressed audio Streams
`generated in the audio compressing unit 111. Numeral 113 is
`a recording control unit for managing recorded data files of
`moving and Still pictures to record and controlling the
`recording with the use of a predetermined file System.
`Numeral 114 is Such a recording medium as an optical disk,
`etc. Numeral 115 is a system control unit for controlling the
`driving unit 104, the moving picture compressing unit 105,
`the fine Still picture compressing unit 106, the moving
`picture memory 107, the still picture memory 108, and the
`recording control unit 113 one-dimensionally. Numeral 116
`is a Switch used by the user to Select a recording mode
`between the moving picture photographing mode and the
`Still picture photographing mode.
`If the moving picture photographing mode is selected by
`the Switch 116, the system control unit 115 controls the
`whole system as follows. The driving unit 104 drives the
`CCD Sensor 102 to generate moving picture Signals, So that
`the CCD sensor 102 converts the pictures focused by the
`optical lens 101 to electric Signals. Then, the Signal proceSS
`ing unit 103 converts the electric Signals to digital Signals,
`which become video Signals. The Video signals are then
`stored in the moving picture memory 107 While video
`Signals in the compression process are transferred from the
`moving picture compressing unit 105 to the moving picture
`memory 107, the Video signals are converted Sequentially to
`compressed moving picture Streams and audios collected by
`the microphone 110 are compressed in the audio compress
`ing unit 111. After that, moving picture Streams generated by
`the moving picture compressing unit 105 and compressed
`audio streams generated in the audio compressing unit 111
`are multiplexed by the multiplexing unit 112. The multi
`plexed Streams are recorded on the recording medium 114
`via the recording control unit 113 in a predetermined record
`ing format to be described later.
`If the Still picture photographing mode is Selected by the
`Switch 116, the system control unit 115 controls the whole
`system as follows. The driving unit 104 drives the CCD
`Sensor 102 to generate Still picture Signals, So that the CCD
`sensor 102 converts the pictures focused by the optical lens
`101 to electric Signals, then the Signal processing unit 103
`converts the electric Signals to digital Signals, which become
`video signals. If the CCD sensor 102 is driven to generate
`Still picture Signals, fine Video signals are output So that
`Video signals for a sheet of Still pictures are output in a time
`exceeding the one-frame period of moving picture Signals.
`The still picture memory 108 stores video signals equivalent
`to one sheet of Still pictures. After that, the fine Still picture
`compressing unit 106 compresses Still pictures for one sheet
`stored in the still picture memory 108 and the compressed
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`US 6,856,760 B2
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`Still pictures are recorded on the recording medium 114 via
`the recording control unit 113 as still picture file data. Then,
`the signal converting unit 109 converts the signal format of
`a sheet of pictures stored in the still picture memory 108 to
`the same signal format as that of Single frame moving
`picture Signals, then the converted Signals are Stored in the
`moving picture memory 107. Then, the moving picture
`compressing unit 105 compresses signals to MPEG I
`pictures, etc., then the I pictures are Stored on the recording
`medium 114 via the recording control unit 113 as moving
`picture Streams.
`According to this embodiment, therefore, when in pho
`tographing Still pictures, Still pictures in the format of the
`compressed moving picture Streams converted from fine Still
`pictures are recorded together with a fine Still picture file.
`Those pictures can thus be reproduced in any of recordable
`players and other ordinary playerS for reproducing moving
`pictures. The Same pictures can also be fetched as fine Still
`pictures So as to be handled on personal computers.
`Although signals read from the still picture memory 108
`are converted in the signal converting unit 109 in this
`embodiment, fine Video signals output from the Signal
`processing unit 103 may also be converted directly in the
`signal converting unit 109. In this case, fine still picture
`Signals and Single frame moving picture image signals are
`stored in the still picture memory 108 and in the moving
`picture memory 107 simultaneously.
`Furthermore, the moving picture memory 107 and the still
`picture memory 108 in this embodiment may be composed
`as different address Spaces in one memory.
`The signal converting unit 109 may also be composed so
`that the CPU obtains still pictures directly from the still
`picture memory 108 using a program and converts the Still
`pictures to Single frame moving pictures through an arith
`metic operation, thereby writing the pictures in the moving
`picture memory 107 directly.
`The moving picture compressing unit 105 and the fine still
`picture compressing unit 106 may also be composed respec
`tively so that both units 105 and 106 can share a processing
`circuit for Such processings as discrete cosine conversion
`and can Switch the mode between moving picture image
`compression and fine Still picture compression. In this case,
`it is only needed to change the mode between when record
`ing a fine Still picture file and when recording Still pictures
`in the format of compressed moving picture Streams con
`verted from fine still pictures.
`FIG. 2 shows an example of the recording file format for
`moving and Still pictures in a Video recording apparatus in
`this embodiment. In FIG. 2, numeral 201 is a root directory,
`which is the top hierarchical layer of the logic data file
`management Structure on an optical disk, which is a record
`ing medium. Numeral 202 is a data directory named as
`DVD RTAV for recording data files of moving pictures
`(including multiplexed audios), still pictures, and audio data.
`The VR MOVIE.VRO is a data file for storing moving
`pictures and the VR STILL.VRO is a data file for recording
`still pictures, which are MPEG I pictures and compressed
`audio data. The VR AUDIO.VRO is a data file for record
`ing audio data when in after-recording of audios. The
`VR MANGRIFO is a management file indicating how data
`files are recorded in each of VR MOVIE.VRO,
`VR STILL.VRO, and VR AUDIO.VRO files. Numeral
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`203 is a directory for recording other data files than the
`compressed moving pictures file. Although Such a directory
`name as JPEG is picked up as an example in this
`embodiment, this directory name is not restricted at all and
`JPEG files may be recorded directly in the route directory
`without creating any JPEG file under the directory named as
`JPEG.
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`In the moving picture photographing mode, moving pic
`tures are recorded in the VR MOVIEVRO file under the
`DVD RTAV directory 202 shown in FIG. 2, as well as the
`management information in the management file
`VR MANGR IFO is rewritten. In the still picture photo
`graphing mode, Still pictures, which are MPEG I pictures,
`are recorded in the VR STILL.VRO file and the manage
`ment information in the management file
`VR MANGR.IFO is rewritten. In addi