JP2542977B2 - Recording method - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a recording method, of particular characters, symbols, a recording method for recording so as to reproduce using the playing apparatus in a digital audio disk digitized signal of the still picture information such as characters and graphics is there.

[0002]

2. Description of the Related Art Conventionally, CAV (constant angular velocity) is used for recording still image pattern information such as characters, symbols, and figures.
There is a video disc. Generally, the recording information is recorded in the form of an analog signal, and therefore, it is necessary to use a player dedicated to video disc reproduction. On the other hand, recently, there is a digital audio disc in which an audio signal is digitized and recorded, and a digital audio disc player is becoming widespread for reproducing the disc. It would be advantageous if this digital audio disc player could be used to reproduce the video information described above. In particular, it would be even more convenient if the video information can be reproduced by effectively utilizing the so-called search (information retrieval) function of the digital audio disc player.

[0003]

SUMMARY OF THE INVENTION The present invention forms a quick regeneration can recording medium by the search function of digital image information, such as still images
The purpose is to provide a possible recording method .

[0004]

The recording method according to the present invention is a digital image recording method.
The image data is divided into blocks, the blocks are divided into sub-blocks having a predetermined unit data amount, and the sub-blocks are divided into blocks.
Identification data at the digital image data section and the position preceding it
Section and the identification data section contains the
Address indicating the pair addresses co - de and the digital image de - identification indicates the type of data of the image co - characterized by serial <br/> recorded by applying a de.

[0005]

EXAMPLES Examples will be described below with reference to the drawings. FIG. 1 is a schematic block diagram of a reproducing system for reproducing the recording medium of the present invention, in which a digital audio disc player 1 sends reproduced digital data and reproduction control data to an interface 2. The interface 2 is connected to each of a CPU (arithmetic processing unit) 3, a video memory 4, a RAM (random access memory) 5, a keyboard 6, and a CRTC (cathode ray tube controller) 7 via a data bus. This CRTC7
The CRT (cathode-ray tube) 8 is controlled by the output of the display to display the reproduction information. The digital audio disc player 1 takes in the control data indicating the search address inputted from the keyboard 6 through the interface 2 and performs an information searching operation. Therefore, digital audio discs have
Digital information having a format as shown in FIG. 2 is recorded.

FIG. 2 shows the arrangement of signals after decoding what is recorded on the disc. Still image pattern information such as characters, symbols, and figures is digitized and divided into blocks. For example, information data corresponding to one second is defined as one block.
Is an integer) sub-blocks of a predetermined unit amount. This sub-block corresponds to, for example, 98 frames in the CD format. One of the sub-blocks is composed of an identification data ID indicating an address of information data and the like, as shown in the figure, and data following the identification ID. This ID is sandwiched by gaps. The ID includes a start mark indicating the beginning of the address, an address,
It consists of a control word. As the control word, for example, 4 control bits in the Q channel data corresponding to 98 frames of the CD format can be used, and the type of the image data of the sub block is also indicated.

The address is an absolute address consisting of timer information such as a music number, minutes, seconds, etc., and a sub-block number like the existing digital audio disk.
It is composed of a cordless code so that the search function of the conventional digital audio disc player can be used. Therefore, as described above, the search operation is performed based on the designated address information from the keyboard 6, and when the CPU 3 detects the ID field, it compares the designated address with the reproduction address. When both numbers match, the next data is stored in the memory 4 and the stored data is used as a display signal by the CRTC 7.
It is a display.

The above operation procedure is shown in the flowchart of FIG.

[0009]

As described above, according to the present invention, a recording medium
Split characters, symbols, digitizes the image information such as characters and graphics in the sub-blocks of a predetermined unit data amount, each support
Since the absolute address information was added to the block and recorded together with the control bit indicating the type of the image data, C
By combining a device such as a microcomputer and a recording medium playing apparatus enables reproduction of images with RT display, also support the absolute address for information search
There is an advantage that the image can be played back quickly each time it is reached.

If the type of image data is known, the coding mode of the image data is also known, and the digital audio disc player can reproduce while performing decoding corresponding to the coding mode of the image data. You will be able to do it.

[Brief description of drawings]

FIG. 1 is a schematic block diagram of a reproducing system for reproducing a recording medium of the present invention.

FIG. 2 is a diagram illustrating an example of a recording format of a recording medium according to an embodiment of the present invention.

FIG. 3 is a flowchart showing an operation procedure of a block in FIG. 1;

[Explanation of symbols for main parts]

 1 ... Digital audio disc player 3 ... CPU 4 ... Video memory 6 ... Keyboard 8 ... CRT

 ─────────────────────────────────────────────────── ─── Continuation of the front page Jury President Takahisa Matsuno Judge Kako Yazaki Judge Yoshinori Hagiwara (56) References JP 58-184890 (JP, A)

Claims (1)

(57) [Claims] 1. Digital image data is divided into blocks.
And, dividing the block into sub-blocks of a predetermined unit data amount, and the digital image data portion of the sub-blocks
The identification data section is placed at a position preceding this, and the identification data is
Recording side for over data unit, characterized in that the recording by applying an identification code indicating the type of the address code and the digital image data indicating the absolute address of the sub-blocks
Law .