JPH10108139A - Digital video disk player - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the single digital video disk(DVD) player by which images recorded on a plurality of different areas of one DVD are viewed at the same time. SOLUTION: Data recorded on different areas of a same DVD are read by a reader 1 at a read rate that is a plurality of multiple of a read rate at usual reproduction, the read data are stored in a different area of a RAM 5 corresponding to an area of a digital video disk from which data are read, the data stored in the respective areas are read from the RAM 5 at a rate based on the reproduction rate separately and the image based on the data read from each area of the RAM 5 are displayed to predetermined different display areas of one and same display device simultaneously or on a plurality of independent display devices respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital video disk (hereinafter, also referred to as DVD) player, and more particularly to a DVD player for displaying images recorded in different areas of a DVD on different display units.

[0002]

2. Description of the Related Art A conventional DVD player reproduces only one piece of data recorded on a DVD at a certain point in time.
You need to select one of the multi stories when playing.

[0003]

For this reason, the conventional DV
In the D player, there is a problem that not all the viewers may be satisfied, for example, when a DVD player has a plurality of viewers at the same time.

An object of the present invention is to provide a DVD player which allows one DVD and one DVD player to simultaneously view images recorded in a plurality of different areas.

[0005]

SUMMARY OF THE INVENTION A DVD player according to the present invention reads data recorded in different areas of the same digital video disc in parallel, and stores a plurality of images based on the data read in parallel. Are simultaneously displayed on a predetermined different display area of the same display device, or on a plurality of independent display devices.

According to the DVD player of the present invention,
Data recorded in different areas of the same digital video disc are read out in parallel, and a plurality of images based on the data read out in parallel are simultaneously displayed in predetermined different display areas of the same display device. Alternatively, since the images are displayed on a plurality of independent display devices, in the case of a DVD in which data corresponding to a plurality of collective story images such as a multi-story is recorded, images of different stories are simultaneously displayed, and a plurality of viewers are displayed. Can be satisfied.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a DVD player according to the present invention will be described with reference to embodiments. FIG. 1 is a block diagram showing a configuration of a DVD player according to one embodiment of the present invention.

The disk reading device 1 is based on a signal given to the control circuit 4 under the control of a control circuit 4 such as a microcomputer. ), And the data recorded on the DVD from the read start position to the read end position given to the control circuit 4 are sequentially read from the DVD. For example, when the reading from the read start position a to the read end position b and the read to the read end position b are completed, the read operation from the read start position c to the read end position d in the area specified by the control circuit 4 is completed. Data is sequentially read.

The data read from the disk reader 1 is sent to a signal processing circuit 2. Signal processing circuit 2
Then, signal processing such as error correction of data sent from the reading device 1 is performed at the several times speed based on the signal given to the control circuit 4, and the signal-processed data is sent to the decoder 3. You.

[0010] In the decoder 3, the signal-processed data output from the signal processing circuit 2 is divided into bit streams according to the read area, and the data is stored in the read area of the RAM 5 which is divided according to the read area. Store sequentially. Therefore, for example, data read from the area from the read start position a to the read end position b is signal-processed, divided into bit streams and stored in the area A of the RAM 5, for example, and read start position c to read end position The data read from the area up to d is signal-processed, divided for each bit stream, and stored in the area B of the RAM 5, for example. By this storage, data recorded in different areas of the same digital video disc is read substantially in parallel.

In this case, for example, the amount of data read from the area from the read start position a to the read end position b is large, and all data processed by signal processing and divided into bit streams is stored in the area A of the RAM 5. If not, the data portion that cannot be stored will be stored in another area D of the RAM 5 under the control of the control circuit 4.

The decoder 3 outputs R at every predetermined time.
Each bit stream is sequentially read from AM5, and the read data is decoded. The data decoded by the decoder 3 is sent to the encoder 6 based on a preset output mode (screen division, multiple monitors, etc.), encoded by the encoder 6, and D / A converted from the encoded data. Are output to a display device (not shown).

When the display screen of the display device receiving the output from the encoder 6 displays an image by dividing the screen of one display device into two, for example, as shown in FIG. The image of the story A is displayed on the screen, and the image of the story B is displayed on the right divided screen. On the other hand, the image of A and the image of B may be displayed like a so-called picture-in-picture.

In the DVD player according to the embodiment of the present invention, image display in one area (for example, image display based on data read from the area from the read start position c to the read end position d) ends. However, the image display of the other area (for example, the reading start positions a to
Image display based on the data read from the area up to the read end position b) is continued,
The previously terminated screen may be displayed in a predetermined color, for example, blue, or the division may be stopped.

In the above-described embodiment of the present invention, the case where the display is divided into two parts on the same display device has been described. 2
There is no need to limit to division. Further, the image of A and the image of B may be separately displayed on different display devices.

[0016]

According to the DVD player of the present invention, there is obtained an effect that a plurality of stories of multi-story DVD software can be viewed simultaneously. In addition, when a plurality of software programs are included in one DVD, there is an effect that they can be viewed simultaneously in parallel.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a DVD player according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing an example of a display screen when a DVD player according to an embodiment of the present invention is used.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disc reading apparatus 2 Signal processing circuit 3 Decoder 4 Control circuit 5 RAM 6 Encoder

Claims (2)

[Claims] 1. An apparatus for reading data recorded in different areas of the same digital video disc substantially in parallel, and simultaneously displaying a plurality of images based on the data read in substantially parallel in the same display device. A digital video disc player for displaying on a predetermined different display area or on a plurality of independent display devices. 2. A digital video disk player according to claim 1, wherein data recorded in different areas of the same digital video disk is read substantially in parallel at a speed higher than the reading speed in normal reproduction. Read at a speed, store the read data in different areas of the memory corresponding to the area of the digital video disk from which the data was read, and store the data stored in each area from the memory at a speed based on the playback speed. A digital video disc player, characterized in that it is read by a digital video disc player.