Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Reexamination Certificate
1997-06-20
2001-10-30
Tran, Thai (Department: 2615)
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
C386S349000, C386S349000
Reexamination Certificate
active
06311012
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an apparatus and method for reproducing signals from a disc; and more particularly, for reproducing multiple camera-angle signals from a Digital Versatile Disc or Digital Video Disc (DVD).
2. Description of Related Art
A DVD is manufactured by masking image signals into digital form, and allows for many diverse functions. For instance, the image signals for multiple camera angles may be recorded on a DVD.
FIG. 2
illustrates, conceptually, the arrangement of data on a DVD. As shown, the image data representing a scene for each camera angle are grouped into angle blocks. Angle block
1
, for instance, includes the image data for each camera angle of the first scene.
FIGS. 3A-3E
illustrate the data format of the image data stored on the DVD. As shown in
FIGS. 3A and 3B
, predetermined amounts of image data are each represented by a Video Object Set (VOB) and collectively as Video Object Sets (VOBS). A VOB consists of multiple cells of image data as shown in FIG.
3
C. Each cell in a VOB corresponds to an angle block as shown in
FIG. 2
, and includes image data for a scene. Also, each cell consists of a plurality of Video Object Units (VOBU) as shown in FIG.
3
D. Because scenes have different amounts of data, the amount of data in different cells can differ.
Each VOBU consists of a navigation packet (NV PCK), a plurality of video packets (V PCK), and an audio packet (A PCK) as shown in
FIG. 3E. A
navigation packet includes navigation data regarding, for instance, the video data stored in the video packets. The video data stored in video packets is encoded according to the well-known MPEG standard.
A conventional DVD reproducing apparatus reproduces the digital data recorded on a DVD. When the image signals for multiple camera angles (e.g., nine camera angles) are recorded on a DVD, a conventional DVD reproducing apparatus allows a user to select one of the images corresponding to one of the camera angles for viewing as shown in FIG.
1
A. Specifically, the conventional DVD reproducing apparatus navigates from the video data for the selected camera angle in one angle block or cell to the video data for the selected camera angle in the next angle block or cell. If, the user changes camera angles, a jump is made as shown in
FIGS. 2 and 3D
to the video data in the next angle block or cell corresponding to the newly selected camera angle. Unfortunately, the conventional DVD reproducing apparatus does not allow simultaneous viewing of more than one camera angle.
As a result, a user must sequentially view the images corresponding to each camera angle to gain an appreciation of the differences between the camera angles. It is, however, not easy to gain an appreciation of the differences between the camera angles in this manner. Consequently, it is difficult for a user to select an optimal camera angle for viewing.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a reproducing method and apparatus which overcome the disadvantages and problems discussed above with respect to the conventional art.
Another object of the present invention is to provide a reproducing method and apparatus which simultaneously display image signals corresponding to a plurality of camera angles.
These and other objects are achieved by providing (a) receiving at least video data read from a disk; (b) processing at least a portion of said received video data to produce image data such that different camera angle images are simultaneously displayed.
These and other objects are further achieved by providing receiving means receiving at least video data read from a disk; and processing means for processing at least a portion of said video data to produce image data such that different camera angle images are simultaneously displayed.
Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.
REFERENCES:
patent: 4774582 (1988-09-01), Hakamada et al.
patent: 5353121 (1994-10-01), Young et al.
patent: 5687332 (1997-11-01), Kurahashi et al.
patent: 5832175 (1998-11-01), Hirayama et al.
patent: 5867229 (1999-02-01), Stevens
patent: 5870523 (1999-02-01), Kikuchi et al.
patent: 5911032 (1999-06-01), Hirayama et al.
patent: 5920537 (1999-07-01), Komma et al.
patent: 19540661 (1996-05-01), None
Cho Jae-Ryong
Lee Seong-Ju
LG Electronics Inc.
Tran Thai
LandOfFree
Apparatus and method for reproducing multiple camera-angle... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for reproducing multiple camera-angle..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for reproducing multiple camera-angle... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2611208