Recording medium, reproduction apparatus, recording method, program and reproduction method

• US 8,006,173 B2
• Filed: 02/01/2008
• Issued: 08/23/2011
• Est. Priority Date: 06/30/2003
• Status: Active Grant

• Current Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: Okada, Tomoyuki, McCrossan, Joseph, Ikeda, Wataru, Yahata, Hiroshi
• Primary Examiner(s): Bashore; William L
• Assistant Examiner(s): PHANTANA ANGKOOL, DAVID
• Application Number:
  US12/024,880
• Publication Number:
  US 20080126922A1
• Time in Patent Office: 1,299 Days
• Field of Search: 715/201, 715/716, 715/721, 715/719, 715/731
• US Class Current: 715/201
• CPC Class Codes: G11B 19/025 'Virtual' control panels, e.g. Graphical User Interface [GUI]
• CPC Class Codes: G11B 19/027 Remotely controlled remote control systems in general G08C
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers
• CPC Class Codes: G11B 2220/213 Read-only discs
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/10 Indexing; Addressing; Timing or synchronising; Measuring tape travel
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/3027 used signal is digitally coded
• CPC Class Codes: G11B 27/322 used signal is digitally coded
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D
• CPC Class Codes: H04N 2005/91321 the copy protection signal being a copy protection control signal, e.g. a record inhibit signal
• CPC Class Codes: H04N 2005/91364 the video signal being scrambled
• CPC Class Codes: H04N 5/765 Interface circuits between an apparatus for recording and another apparatus
• CPC Class Codes: H04N 5/775 between a recording apparatus and a television receiver
• CPC Class Codes: H04N 5/781 on disks or drums
• CPC Class Codes: H04N 5/783 Adaptations for reproducing at a rate different from the recording rate
• CPC Class Codes: H04N 5/85 on discs or drums
• CPC Class Codes: H04N 5/907 using static stores, e.g. storage tubes or semiconductor memories H04N5/91 takes precedence
• CPC Class Codes: H04N 9/8042 : involving data reduction
• CPC Class Codes: H04N 9/8063 : using time division multiplex of the PCM audio and PCM video signals
• CPC Class Codes: H04N 9/8205 : involving the multiplexing of an additional signal and the colour video signal
• CPC Class Codes: H04N 9/8227 : the additional signal being at least another television signal

Abstract

A BD-ROM has recorded therein an AV Clip generated by multiplexing a video stream and a graphics stream. The graphics stream represents an interactive display to be overlayed with the video stream, and includes a sequence of three Button State groups. The interactive display includes a plurality of buttons, each of which changes from a normal state to a selected state, and from the selected state to an active state, according to a user operation. In the three Button State groups in the graphics stream, the first-order group (N-ODSs) is made of a plurality of pieces of graphics data, which represent normal states of the buttons, the second-order group (S-ODSs) is made of a plurality of pieces of graphics data, which represent selected states of the buttons, and the third-order group (A-ODSs) is made of a plurality of pieces of graphics data, which represent active states of the buttons.

Claims

1. A recording medium comprising:

a graphics stream and play list information, wherein;

said play list information includes main-path information and sub-path information,

said main-path information indicates a video stream as a main stream and defines a reproduction section of the main stream,

said sub-path information indicates said graphics stream as a sub stream which synchronizes with said main stream, defines a reproduction section of said sub stream and includes reproduction information,

said reproduction information indicates a synchronization point on a reproduction time axis of said main stream,

the graphics stream which represents an interactive display including a plurality of graphical button materials,

said interactive display is represented to be overlayed with a picture of said video stream in said reproduction section of said main stream,

said graphics stream includes a plurality of graphics data sets each forming a group of graphics data which renders a predetermined state of said graphical button materials, and

said plurality of graphics data sets respectively render different predetermined states of said graphical button materials.

2. The recording medium of claim 1, further comprising a read-only optical disk, wherein

said video stream is recorded on a read-only optical disk, and

said graphics stream and said play list information are recorded on said recording medium which is a rewritable disk.

3. A reproduction apparatus for reproducing a graphics stream, the reproduction apparatus comprising:

a reading unit operable to read play list information from a recording medium; and

a graphics decoder operable to decode the graphics stream which represents an interactive display including a plurality of graphical button materials, wherein

the play list information includes main-path information and sub-path information,

the main-path information indicates a video stream as a main stream and defines a reproduction section of the main stream,

the sub-path information indicates the graphics stream as a sub stream which synchronizes with the main stream, defines a reproduction section of the sub stream and includes reproduction information,

the reproduction information indicates a synchronization point of a reproduction time axis of the main stream,

the graphics stream represents an interactive display including a plurality of graphical button materials,

the interactive display is represented to be overlayed with a picture of the video stream in the reproduction section of the main stream,

the graphics stream includes a plurality of graphics data sets each forming a group of graphics data which renders a predetermined state of the graphical button materials,

the plurality of graphics data sets respectively render different predetermined states of the graphical button materials, and

the reproduction apparatus uses the graphics data belonging to a top set and the graphics data belonging to a second-place set in the plurality of graphics data sets for presenting an initial display of the interactive display, and uses the remaining graphics data in the plurality of graphics data sets for updating the interactive display upon a user operation.

4. The reproduction apparatus of claim 3, wherein

the video stream is recorded on a read-only optical disk, and

the graphics stream and the play list information are recorded on a recording medium which is a rewritable disk.

5. A recording method for recording to a recording medium, said method comprising:

creating application data; and

recording the created application data to the recording medium, wherein

the application data includes a graphics stream and play list information,

the play list information includes main-path information and sub-path information,

the main-path information indicates a video stream as a main stream and defines a reproduction section of the main stream,

the sub-path information indicates the graphics stream as a sub stream which synchronizes with the main stream, defines a reproduction section of the sub stream and includes reproduction information,

the reproduction information indicates a synchronization point on a reproduction time axis of the main stream,

the graphics stream represents an interactive display including a plurality of graphical button materials,

the interactive display is represented to be overlayed with a picture of the video stream in the reproduction section of the main stream,

the graphics steam includes a plurality of graphics data sets each forming a group of graphics data which renders a predetermined state of the graphical button materials, and

the plurality of graphics data sets respectively render different predetermined states of the graphical button materials.

6. A method of reproducing a graphics stream, said method comprising:

reading play list information from a recording medium; and

decoding the graphics stream which represents an interactive display including a plurality of graphical button materials, wherein

the play list information includes main-path information and sub-path information,

the main-path information indicates a video stream as a main stream and defines a reproduction section of the main stream,

the sub-path information indicates the graphics stream as a sub stream which synchronizes with the main stream, defines a reproduction section of the sub stream and includes reproduction information,

the reproduction information indicates a synchronization point of a reproduction time axis of the main stream,

the graphics stream represents an interactive display including a plurality of graphical button materials,

the interactive display is represented to be overlayed with a picture of the video stream in the reproduction section of the main stream,

the graphics steam includes a plurality of graphics data sets each forming a group of graphics data which renders a predetermined state of the graphical button materials,

the plurality of graphics data sets respectively render different predetermined states of the graphical button materials, and

the reproduction method uses the graphics data belonging to a top set and the graphics data belonging to a second-place set in the plurality of graphics data sets for presenting an initial display of the interactive display, and uses the remaining graphics data in the plurality of graphics data sets for updating the interactive display upon a user operation.