EP0942426A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
DVD recording device and recording method
Assignee: Nippon Columbia Co Ltd
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Filing: 1999-02-12
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Granted: —
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Expires: 2019-02-12
Abstract
Abstract A DVD recording apparatus that can record the video data taken with a video camera directly on an optical disk in a format reproducible on a DVD video playback device without using an intermediate medium, wherein a controller instructs a data recording unit to secure a reserved area on a recording medium, instructs a data formatter to convert content data compressed by a data compressor into at least one video title set, instructs the data recording unit to sequentially record the video title sets in an area following the reserved area on the optical disk, and after the video title sets have been recorded, instructs the data formatter and the data recording unit to record a video manager behind the reserved area, and after the video manager has been recorded, instructs the data formatter and the data recording unit to record volume and file structure data in front portion of the reserved area.
Inventors
- 👤 Yoshiaki 203 Takahashi Building No:14 Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 23:06
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/102; G11B27/105; G11B27/02; G11B27/031; G11B27/034; G11B27/19; G11B27/28; G11B27/30; G11B27/3027; G11B27/32; G11B27/327; G11B27/329; H; H04; H04N; H04N9/00; H04N9/79; H04N9/80; H04N9/804; H04N9/8042; G11B2220/00; G11B2220/20; G11B2220/21; G11B2220/213; G11B2220/215; G11B2220/216; G11B2220/218; G11B2220/25; G11B2220/2537; G11B2220/2562; G11B2220/2575; G11B2220/90; G11B7/00; G11B7/004; G11B7/0045; G11B7/007; G11B7/013; H04N5/00; H04N5/76; H04N5/765; H04N5/77; H04N5/84; H04N5/85
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
462 words
A DVD recorder for recording content data including
any of a main video signal, a sub picture signal, and an
audio signal on an optical information recording medium (6)
in a recording format in conformity with the DVD Video
Standard, said DVD recorder comprising: data compression means (2) for compressing said
content data at a fixed data compression rate; data formatting means (4) for adding reproduction
information for the content data and navigation data
showing the relation with other content data to the content
data, and converting the content data compressed by said
data compression means (2) into data having a format in
conformity with the DVD Video Standard; data recording means (5) for recording on the
optical information recording medium (6) said content data
converted into data having a format in conformity with the
DVD Video Standard by said data formatting means (4); and control means (7) for centrally controlling the
respective means, wherein said control means (7) includes: reserved area securing instruction means (41) for
instructing said data recording means (5) to secure a
reserved area having a predetermined capacity on said
optical information recording medium (6); video title set recording instruction means (42) for
instructing said data formatting means (4) to convert the
content data compressed by said data compression means (2)
into at least one video title set, including a video object
set and video title set information describing information
for reproducing the video object set and describing
attribute information, and also for instructing said data
recording means (5) to sequentially record at least one
video title set, obtained by conversion, in an area
following said reserved area on the optical information
recording medium (6); video manager recording instruction means (44) for
instructing said data formatting means (4) to generate a
video manager for managing the video title sets recorded on
said optical information recording medium (6) in accordance
with the DVD Video Standard, and also for instructing said
data recording means (5) to record the video manager in a
rear portion of said reserved area after the video title
sets have been recorded on the optical information
recording medium (6) as instructed by said video title set
recording instruction means (42); and volume and file structure data recording instruction
means (45) for instructing said data formatting means (4)
to generate volume and file structure data as information
for managing contents on said optical information recording
medium (6) as files and directories in accordance with the
DVD Video Standard, and also for instructing said data
recording means (5) to record the volume and file structure
data in a front portion of said reserved area after said
video manager has been recorded on the optical information
recording medium (6) as instructed by said video manager
recording instruction means (44).
Claim 2
Dependent Claim
81 words
A DVD recorder according to Claim 1, wherein said
video title set recording instruction means (42) instructs
said data formatting means (4) to convert the content data
compressed by said data compression means (2) into at least
one video title set having a predetermined capacity, and
also instructs said data recording means (5) to
sequentially record at least one video title set, obtained
by the conversion, in an area subsequent to said reserved
area of said optical information recording medium (6).
Claim 3
Dependent Claim
36 words
A DVD recorder according to Claim 2, wherein said
video title set recording instruction means (42) instructs
said data recording means (5) to record the content data in
one video title set as one data cell.
Claim 4
Dependent Claim
143 words
A DVD recorder according to Claim 1, wherein said
video title set recording instruction means (42) includes: a video title set information area securing means
(51) which, when one video title set is recorded, instructs
said data recording means to secure a video title set
information reserve area with a predetermined capacity in
front pprtion of an area where the video title set is
recorded; a data cell recording means (52) which instructs
said data recording means (5) to record at least one data
cell having a predetermined capacity in an area subsequent
to the video title set information reserved area; and a video title set information recording means (53)
which instructs said data recording means (5) to record
video title set information in said video title set
information reserved area after data cells have been
recorded by said data recording means (5).
Claim 5
Dependent Claim
41 words
A DVD recorder according to Claim 4, wherein said
video title set recording instruction means (42) instructs
said data recording means (5) to record a video title set
with a plurality of data cells, each having a predetermined
capacity, included therein.
Claim 6
Dependent Claim
280 words
A DVD recorder according to Claim 1, wherein said
control means (7) further includes: lead-out data recording instruction means (43) for
instructing said data formatting means (4) to generate
lead-out data in accordance with the DVD Video Standard,
and also for instructing said data recording means (5) to
record the lead-out data in a lead-out area following the
recorded area of the video title set on the optical
information recording medium (6) after video title sets
have been recorded on the optical information recording
medium (6) as instructed by said video title set recording
instruction means (42) and before said video manager
recording instruction means (44) starts recording a video
manager on the optical information recording medium (6); zero data recording instruction means (46) for
instructing said data formatting means (4) and said data
recording means (5) to record zero data between a front
portion of said reserved area on the optical information
recording medium (6) where volume and file structure data
was recorded and a rear portion of said reserved area where
said video manager was recorded after the volume and file
structure data has been recorded on the optical information
recording medium (6) as instructed by said volume and file
structure data recording instruction means (45); and lead-in data recording instruction means (47) for
instructing said data formatting means to generate lead-in
data in accordance with the DVD Video Standard, and also
for instructing said data recording means (5) to record the
lead-in data in the lead-in area on the optical information
recording medium (6) after zero data has been recorded on
the optical information recording medium (6) as instructed
by said zero data recording instruction means (46).
Claim 7
Dependent Claim
130 words
A DVD recorder according to Claim 6, wherein said control means (7) further includes: program memory area securing means (48) to instruct
said data recording means (5) to secure a program memory
area at a location further in than the lead-in area or at a
location further out than the lead-out area; information recording instruction means (49) for
instructing said data recording means (5) to record
information about the video title set in said program
memory area each time a video title set has been recorded;
and data generating instruction means (50) for
instructing said data formatting means (4) to generate the
volume and file structure data and the lead-in data by
referring to information recorded in said program memory
area after a final video title set has been recorded.
Claim 8
Dependent Claim
38 words
A DVD recorder according to Claim 1, wherein said
reserved area securing instruction means (41) instructs
said data recording means (5) to secure said reserved area
subsequent to the lead-in area of said optical information
recording medium (6).
Claim 9
Independent Claim
209 words
A method of recording content data including any of
a main video signal, a sub video signal, and an audio
signal on an optical information recording medium (6) in a
recording format in conformity with the DVD Video Standard,
said recording method comprising the steps of: securing a reserved area having a predetermined
capacity in an area subsequent to a lead-in area of said
optical information recording medium (6); converting said content data into at least one video
title set having a predetermined capacity, and sequentially
recording at least one video title set in an area
subsequent to said reserved area of said optical
information recording medium (6); generating a video manager for managing the video
title sets recorded on said optical information recording
medium (6) after said video title sets have been recorded
on said optical information recording medium (6), and
recording said video manager in a rear portion of said
reserved area of said optical information recording medium
(6); and generating volume and file structure data for
managing contents recorded on said optical information
recording medium (6) after said video manager has been
recorded on said optical information recording medium (6),
and recording the volume and file structure data in a front
portion of said reserved area.
Claim 10
Dependent Claim
22 words
A recording method according to Claim 9, wherein
said content data in one video title set is recorded as one
data cell.
Claim 11
Independent Claim
336 words
A method of recording content data including any of
a main video signal, a sub video signal, and an audio
signal on an optical information recording medium (6) in a
recording format in conformity with the DVD Video Standard,
said recording method comprising the steps of: securing a reserved area having a predetermined
capacity in an area subsequent to a lead-in area of said
optical information recording medium (6); dividing said content data compressed at a fixed
compression rate into at least one data cell having a
predetermined capacity, and recording a video title set,
including said at least one data cell in an area subsequent
to said reserved area of said optical information recording
medium (6); generating a video manager for managing the video
title sets recorded on said optical information recording
medium (6) after said video title sets have been recorded
on said optical information recording medium (6), and
recording said video manager in a rear portion of the
reserved area of the optical information recording medium
(6); and generating volume and file structure data for
managing contents recorded on said optical information
recording medium (6) after said video manager has been
recorded on said optical information recording medium (6),
and recording the volume and file structure data in a front
portion of said reserved area, wherein said step of recording said video title set
in an area subsequent to said reserved area, includes the
steps of: previously securing a video title set information
reserved area for recording video title set information
included in said video title set in front of the area where
the video title set is recorded; recording a video object set included in said video
title set in the area, where said video title sets are
recorded, subsequent to the video title set information
reserved area; and recording video title set information of the video
title sets in said video title set information reserved
area after the video title sets have been recorded on said
optical information recording medium (6).
Claim 12
Dependent Claim
27 words
A recording method according to Claim 11, wherein
said content data in one data cell is recorded as at least
one data unit of a fixed length.
Claim 13
Dependent Claim
96 words
A recording method for recording content data in a
recording format in conformity with the DVD Video Standard
on an optical information recording medium (6), comprising
the steps of: generating a plurality of video title sets according
to a recording time, each of said video title sets having a
plurality of data units to be reproduced in a first range
of a fixed time period, and each of said video title sets
being reproduced in a second range of another fixed time
period, and recording said video title sets on said optical
information recording medium (6).
Claim 14
Dependent Claim
92 words
A recording method for recording content data in a
recording format in conformity with the DVD Video Standard
on an optical information recording medium (6), comprising
the steps of: generating a plurality of data cells according to a
recording time, each of said data cells having a plurality
of data units to be reproduced in a first range of a fixed
time period, and each of said data cells being reproduced
in a second range of another fixed time period, and
recording said plurality of data cells as one video data
set.
References Cited (Backward Citations)
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