EP0712256A2
Expired / Lapsed
EP
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Recording/reproducing apparatus
Assignee: Canon Inc
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Filing: 1995-11-13
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Granted: —
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Expires: 2015-11-13
Abstract
Abstract A recording/reproducing apparatus for recording encoded data on a recording medium by time sequentially and independently recording normal reproduction data and specific reproduction data contained in the encoded data, the normal reproduction data and specific reproduction data including decode control information. The recording/reproducing apparatus includes a detection circuit (102) for detecting the decode control information from reproduced data in a specific reproduction mode and in a normal reproduction mode, and a memory circuit (106) for storing the control information detected by the detection circuit (102).
Inventors
- 👤 Mitsuo Niida
- 👤 Akio Fujii
- 👤 Yoshiki Ishii
- 👤 Akiyoshi Hamanaka
- 👤 Shinji Ohnishi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 18:03
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/02; G11B5/09; H; H04; H04N; H04N21/00; H04N21/40; H04N21/41; H04N21/414; H04N21/4147; H04N7/00; H04N7/24; H04N7/52; H04N7/54; H04N9/00; H04N9/79; H04N9/80; H04N9/804; H04N9/8042; H04N5/00; H04N5/76; H04N5/78; H04N5/782; H04N5/783; H04N9/87; H04N9/877
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
81 words
A recording/reproducing apparatus for recording encoded data on a recording medium by time sequentially and independently recording normal reproduction data and specific reproduction data contained in the encoded data, the normal reproduction data and specific reproduction data including decode control information, the recording/reproducing apparatus comprising: detection means for detecting said decode control information from reproduced data in a specific reproduction mode and in a normal reproduction mode; and memory means for storing said decode control information detected by said detection means.
Claim 2
Dependent Claim
41 words
A recording/reproducing apparatus according to claim 1, further comprising update means for updating, if said decode control information is reproduced during the normal reproduction mode, the contents of said memory means by the latest one of said reproduced decode control information.
Claim 3
Dependent Claim
50 words
A recording/reproducing apparatus according to claim 2, wherein said update means updates, if said decode control information is reproduced from the normal reproduction data during the specific reproduction mode, the contents of said memory means by the latest one of said reproduced decode control information for the normal reproduction data.
Claim 4
Dependent Claim
84 words
A recording/reproducing apparatus according to claim 1, further comprising output control means for reading and outputting said decode control information for the normal reproduction data if said decode control information for the normal reproduction data is being stored in said memory means, and for not outputting said decode control information for the normal reproduction data if said decode control information for the normal reproduction data is not stored in said memory means, respectively when the specific reproduction mode transits to the normal reproduction mode.
Claim 5
Dependent Claim
70 words
A recording/reproducing apparatus according to claim 1, further comprising first detection means for detecting program identification information for identifying each of a plurality of programs contained in said encoded data, storage means for storing the detected program identification information, and second detection means for detecting a change in said program identification information of the specific reproduction data during the specific reproduction mode and clearing the contents of said memory means.
Claim 6
Dependent Claim
14 words
A recording/reproducing apparatus according to claim 5, wherein said program identification information is PID.
Claim 7
Dependent Claim
24 words
A recording/reproducing apparatus according to claim 1, wherein said encoded data is image data obtained by multiplexing intra-frame encoded data and inter-frame encoded data.
Claim 8
Dependent Claim
15 words
A recording/reproducing apparatus according to claim 1, wherein said encoded data is MPEG-2 encoded data.
Claim 9
Dependent Claim
15 words
A recording/reproducing apparatus according to claim 1, wherein said encoded data is ATV encoded data.
Claim 10
Dependent Claim
14 words
A recording/reproducing apparatus according to claim 1, wherein said decode control information is PSI.
Claim 11
Dependent Claim
17 words
A recording/reproducing apparatus according to claim 1, wherein the specific reproduction mode is a fast reproduction mode.
Claim 12
Dependent Claim
75 words
A recording/reproducing apparatus for recording/reproducing encoded data including normal reproduction data and specific reproduction data respectively containing identification information and for time sequentially and independently recording the normal reproduction data and specific reproduction data on a recording medium, the recording/reproducing apparatus comprising: detection means for detecting said identification information contained in the specific reproduction data and reproduced in a normal reproduction mode; and memory means for storing said identification information detected by said detection means.
Claim 13
Dependent Claim
41 words
A recording/reproducing apparatus according to claim 12, wherein if said identification information of the specific reproduction data is reproduced in the normal reproduction mode, the contents of said memory means is updated by the latest one of said reproduced identification information.
Claim 14
Dependent Claim
31 words
A recording/reproducing apparatus according to claim 12, wherein when the normal reproduction mode transits to a specific reproduction mode, said identification information stored in said memory means is read and outputted.
Claim 15
Dependent Claim
47 words
A recording/reproducing apparatus according to claim 12, wherein a time signal contained in the reproduced encoded data is detected, and when the normal reproduction mode transits to a specific reproduction mode, a signal indicating a discontinuity of said time signal is embedded in the reproduced encoded data.
Claim 16
Dependent Claim
78 words
A recording/reproducing apparatus according to claim 12, further comprising time signal generation means for generating a signal having the same format as a time signal contained in the reproduced encoded data, and control means for controlling said time signal generation means to generate, when the normal reproduction mode transits to a specific reproduction mode, said signal having a continuity with the time signal in the normal reproduction mode and to embed said signal in the reproduced encoded data.
Claim 17
Dependent Claim
15 words
A recording/reproducing apparatus according to claim 16, wherein said time signal generation means generates PCR.
Claim 18
Dependent Claim
24 words
A recording/reproducing apparatus according to claim 12, wherein said encoded data is image data obtained by multiplexing intra-frame encoded data and inter-frame encoded data.
Claim 19
Dependent Claim
15 words
A recording/reproducing apparatus according to claim 12, wherein said encoded data is MPEG-2 encoded data.
Claim 20
Dependent Claim
15 words
A recording/reproducing apparatus according to claim 12, wherein said encoded data is ATV encoded data.
Claim 21
Dependent Claim
13 words
A recording/reproducing apparatus according to claim 12, wherein said identification information is PSI.
Claim 22
Dependent Claim
161 words
A recording/reproducing apparatus comprising: (a) encoded data reconfiguration means for receiving encoded data formed by multiplexing intra-frame encoded image data and inter-frame encoded image data and for selecting said intra-frame encoded image data from the received encoded data and reconfiguring said intra-frame encoded image data; (b) record means for recording an output of said encoded data reconfiguration means on a recording medium at a predetermined position; (c) reproduction means for reproducing and outputting data recorded on the recording medium by said record means, at a predetermined increased speed; (d) sync signal generation means for generating a sync signal in accordance with a time signal contained in an output of said reproduction means; (e) time signal generation means for generating a signal having the same format as the format of the time signal contained in an output of said reproduction means; and (f) memory means for storing one or both of outputs of said reproduction means and said time signal generation means.
Claim 23
Dependent Claim
28 words
A recording/reproducing apparatus according to claim 22, wherein said encoded data reconfiguration means extracts low frequency components of the encoded data to reconfigure said intra-frame encoded image data.
Claim 24
Dependent Claim
44 words
A recording/reproducing apparatus according to claim 22, wherein said time signal generation means generates the time signal during a transition period between the operation of said reproduction means at a normal speed and the operation of said reproduction means at the predetermined increased speed.
Claim 25
Dependent Claim
54 words
A recording/reproducing apparatus according to claim 22, wherein said memory means stores an output of said reproduction means and an output of said time signal generation means during a transition period between the operation of said reproduction means at a normal speed and the operation of said reproduction means at the predetermined increased speed.
Claim 26
Dependent Claim
27 words
A recording/reproducing apparatus according to claim 22, wherein said encoded data formed by multiplexing intra-frame encoded image data and inter-frame encoded image data is MPEG encoded data.
Claim 27
Dependent Claim
27 words
A recording/reproducing apparatus according to claim 22, wherein said encoded data formed by multiplexing intra-frame encoded image data and inter-frame encoded image data is ATV encoded data.
Claim 28
Dependent Claim
15 words
A recording/reproducing apparatus according to claim 22, wherein said time signal generation means generates PCR.
Claim 29
Dependent Claim
15 words
A recording/reproducing apparatus according to claim 22, wherein said time signal generation means generates SCR.
Claim 30
Dependent Claim
41 words
A recording apparatus for recording encoded data on a recording medium by time sequentially and independently recording normal reproduction data and specific reproduction data contained in the encoded data, the normal reproduction data and specific reproduction data including decode control information.
Claim 31
Dependent Claim
85 words
A reproducing apparatus for reproducing encoded data which has been recorded on a recording medium by time sequentially and independently recording normal reproduction data and specific reproduction data contained in the encoded data, the normal reproduction data and specific reproduction data including decode control information, the reproducing apparatus comprising: detection means for detecting said decode control information from reproduced data in a specific reproduction mode and in a normal reproduction mode; and memory means for storing said decode control information detected by said detection means.
References Cited (Backward Citations)
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