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US5666162A
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Moving image signal coding apparatus and moving image signal coding control method
Assignee: Canon Inc
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Filing: 1995-10-30
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Granted: 1997-09-09
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Expires: 2015-10-30
Abstract
Abstract A moving image signal coding apparatus and moving image signal coding method dividing one frame of the moving image signal into a plurality of areas which may possibly overlap each other and refreshing the areas at different periods corresponding to an independent non-overlapped range at the circumferential portion of the frame and to an overlapped range at the central portion. Further, a specific area in the frame can be encoded by selectively using inter-frame prediction coding and intra-frame prediction coding.
Inventors
- 👤 Yoshio Iizuka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:45
CPC Classifications
H; H04; H04N; H04N19/00; H04N19/10; H04N19/169; H04N19/17; H04N19/102; H04N19/103; H04N19/107; H04N19/50; H04N19/503; H04N19/60; H04N19/61; H04N19/30
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
68 words
A moving image signal coding apparatus which encodes a moving image signal, switching over inter-frame prediction coding and intra-frame prediction coding selectively, comprising: specification means for specifying a fixed area in a frame of the moving image signal as an object of coding; and coding control means for controlling the coding so that the moving image signal is encoded by inter-frame prediction coding in the specified fixed area.
Claim 2
Dependent Claim
68 words
A moving image signal coding apparatus which encodes a moving image signal, switching over inter-frame prediction coding and intra-frame prediction coding selectively, comprising: specification means for specifying a fixed area in a frame of the moving image signal as an object of coding; and coding control means for controlling the coding so that the moving image signal is encoded by inter-frame prediction coding in the specified fixed area.
Claim 3
Dependent Claim
25 words
The apparatus according to claim 1, wherein said coding control means performs the inter-frame prediction coding within a fixed period after receiving a predetermined instruction.
Claim 4
Dependent Claim
27 words
The apparatus according to claim 1, wherein said coding control means performs the inter-frame prediction coding within a fixed number of frames after receiving a predetermined instruction.
Claim 5
Dependent Claim
82 words
A moving signal coding apparatus which encodes a moving image signal, switching over interframe prediction coding and intra-frame prediction coding selectively, comprising: specification means for specifying an area in a frame of the moving image signal as an object of coding; and coding control means for controlling the coding so that the moving image signal is encoded by inter-frame prediction coding in the specified area, wherein said coding control means performs the inter-frame prediction coding in the circumferential portion of the frame.
Claim 6
Dependent Claim
82 words
A moving signal coding apparatus which encodes a moving image signal, switching over interframe prediction coding and intra-frame prediction coding selectively, comprising: specification means for specifying an area in a frame of the moving image signal as an object of coding; and coding control means for controlling the coding so that the moving image signal is encoded by inter-frame prediction coding in the specified area, wherein said coding control means performs the inter-frame prediction coding in the circumferential portion of the frame.
Claim 7
Dependent Claim
88 words
A moving signal coding apparatus which encodes a moving image signal, switching over interframe prediction coding and intra-frame prediction coding selectively, comprising: specification means for specifying an area in a frame of the moving image signal as an object of coding; and coding control means for controlling the coding so that the moving image signal is encoded by inter-frame prediction coding in the specified area, wherein, if an area which especially attracts attention other than the specified area exists, the intra-frame prediction coding is performed in the area.
Claim 8
Dependent Claim
88 words
A moving signal coding apparatus which encodes a moving image signal, switching over interframe prediction coding and intra-frame prediction coding selectively, comprising: specification means for specifying an area in a frame of the moving image signal as an object of coding; and coding control means for controlling the coding so that the moving image signal is encoded by inter-frame prediction coding in the specified area, wherein, if an area which especially attracts attention other than the specified area exists, the intra-frame prediction coding is performed in the area.
Claim 9
Dependent Claim
73 words
A moving signal coding apparatus which encodes a moving image signal, switching over interframe prediction coding and intra-frame prediction coding selectively, comprising: specification means for specifying an area in a frame of the moving image signal as an object of coding; and coding control means for controlling the coding so that the moving image signal is encoded by inter-frame prediction coding in the specified area, wherein the specified area can be changed arbitrarily.
Claim 10
Dependent Claim
73 words
A moving signal coding apparatus which encodes a moving image signal, switching over interframe prediction coding and intra-frame prediction coding selectively, comprising: specification means for specifying an area in a frame of the moving image signal as an object of coding; and coding control means for controlling the coding so that the moving image signal is encoded by inter-frame prediction coding in the specified area, wherein the specified area can be changed arbitrarily.
Claim 11
Dependent Claim
69 words
A moving image signal coding apparatus which encodes a moving image signal, switching over inter-frame prediction coding and intra-frame prediction coding selectively, comprising: specification means for specifying a fixed area in a frame of the moving image signal as an object of coding; and coding control means for controlling the coding so that the moving image signal is encoded by the intra-frame prediction coding in the specified fixed area.
Claim 12
Dependent Claim
69 words
A moving image signal coding apparatus which encodes a moving image signal, switching over inter-frame prediction coding and intra-frame prediction coding selectively, comprising: specification means for specifying a fixed area in a frame of the moving image signal as an object of coding; and coding control means for controlling the coding so that the moving image signal is encoded by the intra-frame prediction coding in the specified fixed area.
Claim 13
Dependent Claim
25 words
The apparatus according to claim 7, wherein said coding control means performs the intra-frame prediction coding within a fixed period after receiving a predetermined instruction.
Claim 14
Dependent Claim
27 words
The apparatus according to claim 7, wherein said coding control means performs the intra-frame prediction coding within a fixed number of frames after receiving a predetermined instruction.
Claim 15
Dependent Claim
15 words
The apparatus according to claim 7, wherein the specified fixed area can be changed arbitrarily.
Claim 16
Dependent Claim
84 words
A moving image signal coding apparatus which encodes a moving image signal, switching over interframe prediction coding and intra-frame prediction coding selectively, comprising: specification means for specifying an area in a frame of the moving image signal as an object of coding; and coding control means for controlling the coding so that the moving image signal is encoded by the intra-frame prediction coding in the specified area, wherein said coding control means performs the inter-frame prediction coding in the circumferential portion of the frame.
Claim 17
Dependent Claim
84 words
A moving image signal coding apparatus which encodes a moving image signal, switching over interframe prediction coding and intra-frame prediction coding selectively, comprising: specification means for specifying an area in a frame of the moving image signal as an object of coding; and coding control means for controlling the coding so that the moving image signal is encoded by the intra-frame prediction coding in the specified area, wherein said coding control means performs the inter-frame prediction coding in the circumferential portion of the frame.
Claim 18
Dependent Claim
74 words
A moving image signal coding apparatus which encodes a moving image signal, switching over inter-frame prediction coding and intra-frame prediction coding selectively, comprising: specification means for specifying an area in a frame of the moving image signal as an object of coding without determining contents of the moving image signal; and coding control means for controlling the coding so that the moving image signal is encoded by inter-frame prediction coding in the specified area.
Claim 19
Dependent Claim
74 words
A moving image signal coding apparatus which encodes a moving image signal, switching over inter-frame prediction coding and intra-frame prediction coding selectively, comprising: specification means for specifying an area in a frame of the moving image signal as an object of coding without determining contents of the moving image signal; and coding control means for controlling the coding so that the moving image signal is encoded by inter-frame prediction coding in the specified area.
Claim 20
Dependent Claim
75 words
A moving image signal coding apparatus which encodes a moving image signal, switching over inter-frame prediction coding and intra-frame prediction coding selectively, comprising: specification means for specifying an area in a frame of the moving image signal as an object of coding without determining contents of the moving image signal; and coding control means for controlling the coding so that the moving image signal is encoded by the intra-frame prediction coding in the specified area.
Claim 21
Dependent Claim
75 words
A moving image signal coding apparatus which encodes a moving image signal, switching over inter-frame prediction coding and intra-frame prediction coding selectively, comprising: specification means for specifying an area in a frame of the moving image signal as an object of coding without determining contents of the moving image signal; and coding control means for controlling the coding so that the moving image signal is encoded by the intra-frame prediction coding in the specified area.
Claim 22
Dependent Claim
67 words
A moving image signal coding method for encoding a moving image signal, switching over inter-frame prediction coding and intra-frame prediction coding selectively, comprising: a step of specifying a fixed area in a frame of the moving image signal as an object of coding; and a step of controlling the coding so that the moving image signal is encoded by inter-frame prediction coding in the specified fixed area.
Claim 23
Dependent Claim
67 words
A moving image signal coding method for encoding a moving image signal, switching over inter-frame prediction coding and intra-frame prediction coding selectively, comprising: a step of specifying a fixed area in a frame of the moving image signal as an object of coding; and a step of controlling the coding so that the moving image signal is encoded by inter-frame prediction coding in the specified fixed area.
Claim 24
Dependent Claim
69 words
A moving image signal coding control method for encoding a moving image signal, switching over inter-frame prediction coding and intra-frame prediction coding selectively, comprising: a step of specifying a fixed area in a frame of the moving image signal as an object of coding; and a step of controlling the coding so that the moving image signal is encoded by the intra-frame prediction coding in the specified fixed area.
Claim 25
Dependent Claim
69 words
A moving image signal coding control method for encoding a moving image signal, switching over inter-frame prediction coding and intra-frame prediction coding selectively, comprising: a step of specifying a fixed area in a frame of the moving image signal as an object of coding; and a step of controlling the coding so that the moving image signal is encoded by the intra-frame prediction coding in the specified fixed area.
Claim 26
Dependent Claim
73 words
A moving image signal coding method for encoding a moving image signal, switching over inter-frame prediction coding and intra-frame prediction coding selectively, comprising: a step of specifying an area in a frame of the moving image signal as an object of coding without determining contents of the moving image signal; and a step of controlling the coding so that the moving image signal is encoded by inter-frame prediction coding in the specified area.
Claim 27
Dependent Claim
73 words
A moving image signal coding method for encoding a moving image signal, switching over inter-frame prediction coding and intra-frame prediction coding selectively, comprising: a step of specifying an area in a frame of the moving image signal as an object of coding without determining contents of the moving image signal; and a step of controlling the coding so that the moving image signal is encoded by inter-frame prediction coding in the specified area.
Claim 28
Dependent Claim
74 words
A moving image signal coding method for encoding a moving image signal, switching over inter-frame prediction coding and intra-frame prediction coding selectively, comprising: a step of specifying an area in a frame of the moving image signal as an object of coding without determining contents of the moving image signal; and a step of controlling the coding so that the moving image signal is encoded by the intra-frame prediction coding in the specified area.
Claim 29
Dependent Claim
74 words
A moving image signal coding method for encoding a moving image signal, switching over inter-frame prediction coding and intra-frame prediction coding selectively, comprising: a step of specifying an area in a frame of the moving image signal as an object of coding without determining contents of the moving image signal; and a step of controlling the coding so that the moving image signal is encoded by the intra-frame prediction coding in the specified area.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-09-08 | 2001-03-10 | 2001-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-09-08 | 2005-03-10 | 2005-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-09-08 | 2009-03-10 | 2009-09-09 | $7700.00 | Window Closed / Lapsed |