Recording medium, recording method, reproduction apparatus and method, and computer-readable program

• US 7,620,297 B2
• Filed: 08/23/2006
• Issued: 11/17/2009
• 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
• Primary Examiner(s): Tran; Thai
• Assistant Examiner(s): Wendmagegn; Girumsew
• Application Number:
  US11/508,443
• Publication Number:
  US 20060294542A1
• Time in Patent Office: 1,182 Days
• Field of Search: 386/95, 386/125, 725/35, 725/37
• US Class Current: 386/239
• 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

An AV Clip generated by multiplexing video and graphics streams is recorded on a BD-ROM. The graphics stream is a sequence of PES packets. The PES packets include ODSs (Object Definition Segments) carrying graphics data and PCSs (Presentation Control Segments) carrying control information. A PCS indicates that graphics data in a preceding ODS in the arrangement is to be displayed at a predetermined time in a state of being overlaid on the video stream. The PCS and the preceding ODS belong to different DSs, and the graphics data in the preceding ODS may be non-referenced graphics data that is not referenced by a PCS which belongs to the same DS as the preceding ODS.

Claims

1. A reproduction apparatus for reproducing a digital stream generated by multiplexing a video stream and a graphics stream, comprising:

a video decoder operable to decode the video stream to generate a moving picture;

a graphics decoder operable to decode the graphics stream to generate graphics, and

a look up table unit, wherein;

the graphics stream is a sequence of packets;

the packets include a packet containing graphics data, a packet containing palette data and a packet containing control data;

the graphic data represents a display content using a plurality of code values;

the palette data indicates correspondence between each of the code values and luminance and color difference

the control data has a reference value for a reference to palette data;

upon reading control data in the graphics stream, the graphics decoder performs a control to display, based on the read control data, a graphic that has been received already; and

the graphics decoder performs the display control by setting palette data read from the graphics stream into the look up table unit, and instructing the look up table unit to perform a color conversion based on the reference value contained in the control data.

2. A method of recording onto a recording medium, comprising the steps of:

generating application data by using an authoring device; and

recording the application data to the recording medium, wherein;

the application data includes a digital stream generated by multiplexing a video stream and a graphics stream;

the graphic stream is a sequence of a plurality of packets; and

the packets include a packet containing graphics data, a packet containing palette data and a packet containing control data;

the graphics data represents a display content using a plurality of code values;

the palette data indicates correspondence between each of the code values and luminance and color difference;

the control data indicates that a display color of a graphics data, which is contained in a preceding packet in the sequence, is to be converted at a predetermined timing, and the control data has a reference value for a reference to palette data that is to be used in the color conversion.

3. A computer-readable recording medium storing a program for causing a computer to reproduce a digital stream generated by multiplexing a video stream and a graphics stream, comprising:

program code operable to cause the computer to decode the video stream to generate a moving picture; and

program code operable to cause the computer to decode the graphics stream to generate graphics, and display the graphics, wherein

the graphics stream is a sequence of a plurality of packets; and

the packets include a packet containing graphics data, a packet containing palette data and a packet containing control data;

the graphics represents a display content using a plurality of code values;

the palette data indicates correspondence between each of the code values and luminance and color difference;

the control data has a reference value for a reference to palette data;

upon reading control data in the graphics stream, the program code for causing the computer to display the graphics, performs a control to display, based on the read control data, the graphics that has been received already; and

the program code for causing the computer to display the graphics performs the display control by performing a color conversion using the palette data corresponding to the reference value contained in the control data.

4. A method of causing a computer to reproduce a digital stream generated by multiplexing a video stream and a graphics stream, comprising the steps of:

decoding the video stream to generate a moving picture; and

decoding the graphics stream to generate graphics, and displaying the graphics, wherein

the graphics stream is a sequence of a plurality of packets; and

the packets include a packet containing graphic data, a packet containing palette data and a packet containing control data;

the graphics data represents a display content using a plurality of code values;

the palette data indicates correspondence between each of the code values and luminance and color difference;

the control data has a reference value for a reference to the palette data;

upon reading control data in the graphics stream, the graphics displaying step performs a control to display, based on the read control data, the graphic that has been received already; and

the graphics displaying step performs the display control by performing a color conversion using the palette data corresponding to the reference value contained in the control data.