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EP0855714A2
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Digital signal editing apparatus and method
Assignee: Sony Corp
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Filing: 1998-01-21
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Granted: —
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Expires: 2018-01-21
Abstract
Abstract When editing an image signal and a sound signal or these signals multiplexed using a conventional digital signal editing apparatus, it is necessary to provide a reproduction apparatus for reproducing an original signal and a recording apparatus for recording the signal edited. This significantly increases the size of the editing system. According to the present invention, a read-out unit 2 reads out I pictures, B pictures, P pictures, and a reproduction information on a reproduction interval of this coded data from a storage medium 1 allowing random access. A storage unit 3 stores the reproduction information read out from the storage medium 1 by the read-out unit 2. A control unit 3 controls read-out of the read-out unit 2 according to the aforementioned reproduction information from the storage unit 3. A decoding unit 5 decodes the coded data which have been read out by the read-out unit 2 controlled by the control unit 4, in such a manner that the data are temporally continuous and outputs an edited decoded data string.
Inventors
- 👤 Mikita c/o Intell. Prop. Dept. Yasuda
- 👤 Katsumi c/o Intell. Prop. Dept. Tahara
- 👤 Motoki c/o Intell. Prop. Dept. Kato
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 16:06
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/102; G11B27/105; G11B27/02; G11B27/031; G11B27/034; G11B27/036; G11B27/11; G11B27/19; G11B27/28; G11B27/32; G11B27/327; G11B27/329; H; H04; H04N; H04N19/00; H04N19/50; G11B20/00; G11B20/00007; G11B2020/00014; G11B2020/00057; G11B2220/00; G11B2220/20; G11B2220/25; G11B2220/2508; G11B2220/2516; G11B2220/2525; G11B2220/2537; G11B2220/2545; G11B2220/2562; G11B2220/60; G11B2220/61; G11B2220/65
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
101 words
A digital signal editing apparatus for editing at least
one coded data string, said apparatus comprising: read-out means for reading out a plurality of coded data
constituting said coded data string from a storage medium
allowing random access; storage means for storing a reproduction information
relating to a reproduction interval of said coded data; control means for controlling read-out by said read-out
means according to said reproduction information from said
storage means; and decoding means for decoding said coded data read out by
said read-out means controlled by said control means and
outputting a decoded data string which has been edited.
Claim 2
Dependent Claim
67 words
A digital signal editing apparatus as claimed in Claim
1, wherein in a case when a first coded data string preceding
a data connection point for edition is to be connected to a
discontinuous second coded data string, all the coded data
required for decoding a first coded data of said second coded
data string are decoded prior to completing decoding of said
first coded data string.
Claim 3
Dependent Claim
55 words
A digital signal editing apparatus as claimed in Claim
2, wherein said decoding means assumes a coded data string
consisting of said first coded data string connected to said
discontinuous second coded data string as a new first coded
data string and connects said new first coded data string to
another discontinuous second coded data.
Claim 4
Dependent Claim
29 words
A digital signal editing apparatus as claimed in Claim
1, wherein said coded data is a coded video data, coded audio
data, or a data including these data multiplexed.
Claim 5
Dependent Claim
18 words
A digital signal editing apparatus as claimed in Claim
1, wherein said storage medium stores said reproduction
information.
Claim 6
Dependent Claim
23 words
A digital signal editing apparatus as claimed in Claim
1, wherein a plurality of said reproduction information are
prepared for said coded data.
Claim 7
Dependent Claim
35 words
A digital signal editing apparatus as claimed in Claim
1, wherein the edited decoded data string which has been
decoded and outputted by said decoding means is again coded and
written into said storage medium.
Claim 8
Dependent Claim
26 words
A digital signal editing apparatus as claimed in Claim
1, wherein said coded data are coded data which have been coded
by the predictive coding method.
Claim 9
Dependent Claim
26 words
A digital signal editing apparatus as claimed in Claim
1, wherein said coded data are I pictures, P pictures, and B
pictures of the MPEG method.
Claim 10
Dependent Claim
72 words
A digital signal editing method for editing at least
one coded data string, wherein a plurality of coded data constituting said coded data
string are read out from a storage medium allowing random
access according to a reproduction information on a
reproduction interval of said coded data, and the coded data
which have been read out are decoded so as to be continuous
temporally and made into an edited decoded data string.
Claim 11
Dependent Claim
71 words
A digital signal editing method as claimed in Claim
10, wherein said edited decoded data string is obtained, when
a first coded data string preceding a data connection point for
edition is to be connected to a discontinuous second coded data
string, by decoding all the coded data required for decoding
a first coded data of said second coded data string prior to
completing decoding of said first coded data string.
Claim 12
Dependent Claim
59 words
A digital signal editing method as claimed in Claim
11, wherein a coded data string consisting of said first coded
data string connected to said discontinuous second coded data
string is assumed to be as a new first coded data string, which
is connected to another discontinuous second coded data, so as
to obtain said edited decoded data string.
Claim 13
Dependent Claim
29 words
A digital signal editing method as claimed in Claim
10, wherein said coded data is a coded video data, coded audio
data, or a data including these data multiplexed.
Claim 14
Dependent Claim
18 words
A digital signal editing method as claimed in Claim
10, wherein said storage medium stores said reproduction
information.
Claim 15
Dependent Claim
23 words
A digital signal editing method as claimed in Claim
10, wherein a plurality of said reproduction information are
prepared for said coded data.
Claim 16
Dependent Claim
24 words
A digital signal editing method as claimed in Claim
10, wherein the edited decoded data is again coded and written
into said storage medium.
Claim 17
Dependent Claim
26 words
A digital signal editing method as claimed in Claim
10, wherein said coded data are coded data which have been
coded by the predictive coding method.
Claim 18
Dependent Claim
26 words
A digital signal editing method as claimed in Claim
10, wherein said coded data are I pictures, P pictures, and B
pictures of the MPEG method.
References Cited (Backward Citations)
EP0695098A2
Cited
US5559562A
Cited
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