JPH0869637A - Information recording medium and information reproducing device of this information recording medium - Google Patents

Abstract

PURPOSE: To provide the above medium with sufficient extensibility of a menu relating to reproduction and to prevent the increase of a cost and the degradation of operability in spite of an increase in the menu by arranging codes corresponding to the multi-medium information to be reproduced and control codes in different regions on the same recording medium. CONSTITUTION: A text 2 as recording information and dot codes 3 of the information corresponding to this text 2 are recorded on the plane 1 of Fig. which is the information recording medium. The dot codes 4, 5 corresponding to the menu indicating reproducing sound volume and reproducing speed are recorded in the lower region of the plane 1 of Fig. The entire part of the dot codes is composed by connection of plural pieces of the one block 6. The one block 6 consists of a marker 8, a kind 9 of reproducing speed control data and reproducing sound volume control data, a block address 10, address error detection and error correction data 11 and a data area 7 where the data for actually controlling the reproduction of voices, images, etc., enters.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording medium for optically readable recording of multimedia information such as audio and video, and an information reproducing apparatus for reproducing the multimedia information from the information recording medium.

[0002]

2. Description of the Related Art Conventionally, there has been known a system capable of long-time recording and repetitive reproduction of multimedia information including audio information, image information, digital code data, etc. which are recorded so as to be optically readable. .

Such an information reproducing system is described, for example, in Japanese Patent Application No. Hei 5-260464 filed by the applicant of the present application. In such a system, as a means for reproducing the information recorded on the information recording medium, an operation switch or the like is provided on the reproduction apparatus main body side. For example, the volume or the like is operated by a volume switch or the like provided on the reproduction apparatus main body side.

[0004]

However, since the information reproducing apparatus as described above is provided with operation switches and the like on the reproducing apparatus main body side, menus relating to reproduction (reproduction speed, volume, sound quality, etc.) increase. I had to add switches to the main body. Therefore, the cost is high and the operation menu is not expandable. Further, there is a problem that operability is poor because an operation other than scanning is required during reproduction.

The present invention has been made in view of the above problems, and is an information recording medium having sufficient expandability of a menu relating to reproduction so that the cost does not increase even if the number of menus increases and the operability does not deteriorate. Another object of the present invention is to provide an information reproducing apparatus for reproducing the multimedia information from the information recording medium.

[0006]

That is, the present invention provides a first area in which multimedia information including at least one of audio information, video information and digital code data is recorded in an optically readable code. In the information recording medium provided, a control code for controlling the reproduction state of the code is recorded in a second area different from the first area.

Further, the present invention is an information output device for reproducing the information recording medium and outputting multimedia information, wherein the code recorded in the first area and the control recorded in the second area. The reading means for optically reading the code, the restoring means for converting the code read by the reading means into multimedia information, and the outputting means for outputting the multimedia information restored by the restoring means are provided. The means is characterized by comprising reproduction control means for controlling the reproduction state of the multimedia information according to the control code read by the reading means.

[0008]

In the information recording medium of the present invention, the first area in which the multimedia information including at least one of the audio information, the image information and the digital code data is recorded by the optically readable code is provided. Have In addition, on this information recording medium, a control code for controlling the reproduction state of the code is recorded in a second area different from the first area.

The present invention is also an information reproducing apparatus for reproducing the above information recording medium and outputting multimedia information, wherein the code recorded in the first area and the control recorded in the second area. The code is optically read by the reading means. Then, the code read by the reading means is converted into multimedia information by the restoring means, and further output by the output means as the restored multimedia information. Further, the restoration means has a reproduction control means, and the reproduction state of the multimedia information is controlled by the reproduction control means according to the control code read by the reading means.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment of the present invention and is a diagram showing a paper surface which is an information recording medium of multimedia information and print contents.

In FIG. 1, a paper surface 1 which is an information recording medium.
As shown in the figure, for example, a text 2 as recording information and a dot code 3 which is information corresponding to the text 2 (speech reading of text contents, etc.) are recorded by printing on the top.

Further, dot codes 4 and 5 corresponding to a menu indicating a reproduction volume and a reproduction speed are printed and recorded in a predetermined area on the paper surface 1, for example, a lower area. A plurality of control data blocks corresponding to different sound volumes and reproduction speeds are separately and independently printed on the dot codes 4 and 5 of the reproduction sound volume and reproduction speed menus. Details of the reproducing method using these control codes will be described later, and an outline will be described here.

For the reproduction sound volume dot code 4, for example, the reproduction sound volume value is previously determined to be 4A, 4B, 4C (4A>4B> 4C) corresponding to the print character of “large ← → small” on the paper 1. Keep it. Alternatively, the reproduction speed value is set to 5A, 5B, 5C (5A>5B> 5) corresponding to the print character of “fast ← → slow”.
C) is decided. Playback volume value 4A determined respectively,
4B, 4C and reproduction speed values 5A, 5B, 5C are encoded as control code data, and data area 7 of block 6 is encoded.
To record. Further, a marker 8 is added to the block 6 at a predetermined position. Here, at a predetermined position in the block 6, as shown in FIG. 1, the data type (code) 9
Is added. The data type (code) 9 indicates whether the corresponding control code data is reproduction volume control data or reproduction speed control data.

Here, if the control code data of the reproduction volume value A is described in the data area 7, for example,
Also in the blocks 6 to be printed side by side, the control code of the reproduction volume value A is printed and recorded in the contents of each data area 7. The blocks 6 formed in this way are gathered to form a sheet 1
A dot code area 4A corresponding to the reproduction volume value A is formed above. Playback volume values 4B, 4C, playback control values 5A, 5
The same applies to B and 5C.

By using a reproducing apparatus described later, a dot code area corresponding to any of the reproduction volume values 4A, 4B, 4C and the reproduction control values 5A, 5B, 5C, for example, the volume value 4
When the area corresponding to A is scanned, the image pickup unit 29 of the playback apparatus similarly sets the playback volume value 4 in the data area.
The block 6 to which the control code data of A is added can be obtained.

Here, unlike the case where all the values of the data areas 7 of the adjacent blocks 6 of FIG. 3 which will be described later are different,
The advantage that similar data can be obtained in the data areas 7 of all the blocks 6 in the above area is that even if a plurality of blocks 6 cannot be read due to stains on the paper surface 1,
The point is that if there is at least one readable block, it is possible to reproduce at the intended volume value.

The above-mentioned reproducing apparatus has at least one of the above blocks 6.
It is judged from the data type 9 read from the individual whether it is the reproduction volume control data or the reproduction speed control data, and next, based on the value of the control code data read from the data area 7, The reproduction control operation of the determined type is performed.

Here, the dot codes 3, 4, and 5 which are information on the paper surface 1 which is the information recording medium will be described. As a two-dimensional data code which is an example of an optically readable code, for example, a dot code as described in Japanese Patent Application No. 5-260464 filed earlier by the applicant of the present application can be used.

The entire dot code is composed of a plurality of blocks 6, and the information itself is recorded inside the data area 7 in the block 6 as a periodic pattern of black and white. When the block is a control data block, the data area 7 corresponds to the volume value or speed value of the control code data (with error correction).

Markers 8 are arranged at four outer corners of one data area 7 so that the scanning direction can be discriminated by the markers 8. That is, in the above-mentioned dot code data format, one control data block 6 includes a marker 8, reproduction speed control data,
The playback volume control data includes a type 9, a block address 10, address error detection / correction data 11, and a data area 7 in which control code data for actually performing playback control of audio or the like is stored.

The marker 8 normally uses a pattern that does not appear in recording modulation. Also, address data 1
0 is data representing the position of the block 6, and the error detection / error correction data 11 is used for error determination of these addresses.

The recorded data in such a format is
The data of "1" and "0" is printed, for example, like "1" with black dots and "0" without black dots, similar to a barcode.

Next, with reference to the block diagram of FIG. 2, the configuration of a reproducing apparatus for audio information as multimedia information will be described. The information reproducing apparatus includes a detection unit 17 for reading a dot code from a sheet 16 on which the dot code 15 is printed, and a scan conversion unit 18 for recognizing the image data supplied from the detection unit 17 as a dot code and performing normalization. , A binarization circuit section 19 for converting multi-valued data into a binary value, a demodulation section 20, a data separation section 22 for discriminating and separating control data, an adjustment section 21 for adjusting a data string, a read error during reproduction, and a data error. Data error correction unit 2 for correcting
3, a control data analysis unit 24 that analyzes the control data,
If the analysis result is for volume control, the first memory 53 that stores the volume value, or if it is for playback speed control, the second memory 54 that stores the playback speed value, decompression processing unit 25 for data compression processing, and decompression processing are performed. An interpolation circuit 52 for interpolating missing data, a buffer memory 58 for temporarily storing the interpolated data, a D / A converter 59 for converting the data in the buffer memory 58 into analog data, and a voice for the analog data. Speaker 60 for outputting as, the first
A reproduction volume control unit 56 for changing the volume of the speaker 60 based on the content of the memory 53, and D / based on the content of the second memory 54.
Playback speed control unit 5 for changing the clock of the A conversion unit 59, etc.
It consists of 7 mag.

In the detection section 17, the dot code 15 on the sheet 16 is illuminated by the light source 26, the reflected light is formed into an image forming optical system 27 such as a lens, and the spatial filter 28 is used to remove moire and the like. The information of the light is converted into an electric signal through an image pickup unit 29 such as a CCD or CMD, which is detected as an image signal, amplified by a preamplifier 30, and output. These light source 26, imaging optical system 27, spatial filter 28,
The image pickup unit 29 and the preamplifier 30 are configured inside an external light shielding unit 31 for preventing disturbance to external light. The image signal amplified by the preamplifier 30 is converted into digital information by the A / D converter 32 and supplied to the scan converter 18 in the next stage.

The image pickup unit 29 is the image pickup unit control unit 33.
Controlled by. For example, when an interline transfer type CCD is used as the image pickup unit 29, the image pickup unit control unit 33 uses, as control signals for the image pickup unit 29, a V blank signal for vertical synchronization and a signal for resetting information charges. Image sensor reset pulse signal, charge transfer gate pulse signal for sending charges accumulated in a two-dimensionally arranged charge accumulating section to a plurality of vertical shift registers, horizontal shift register for transferring charges in the horizontal direction and outputting to the outside , A horizontal charge transfer CLK signal that is a transfer clock signal, a vertical charge transfer pulse signal for vertically transferring the plurality of vertical shift register charges and sending the charges to the horizontal shift register, and the like.

Then, the image pickup section control section 33 gives the light source a light emitting cell control pulse for timing the light emission of the light source 26 in synchronization with a predetermined timing. In addition, in order to suppress the S / N deterioration to a minimum even when a disturbance such as external light enters due to some reason in spite of the presence of the external light shielding portion 31 due to the playback apparatus tilting, Immediately before the light source 26 emits light in the V blanking period, the image sensor reset pulse is output once to reset the charges, light emission is performed immediately after that, and reading is performed immediately thereafter.

Next, the scan converter 18 will be described.
The scan conversion unit 18 is a unit that recognizes the image data supplied from the detection unit 17 as a dot code and performs normalization. As the method, first, the image data from the detection unit 17 is stored in the image memory 36, and once read out from the image memory 36 and sent to the marker detection unit 37. This marker detector 37
Then, the marker for each block is detected. Then, the data array direction detection unit 38 detects the rotation or tilt and the data array direction using the marker.

The address control unit 39, based on the result,
Image data is read from the image memory 36 so as to correct it and supplied to the interpolation circuit 40. At this time, the lens aberration information is read from the memory 41 for correcting the distortion of the lens aberration in the imaging optical system 27 of the detection unit 17, and the lens is also corrected. Then, the interpolation circuit 40
Performs an interpolation process on the image data and converts it into the original dot code pattern.

The output of the interpolation circuit 40 is a binarization circuit section 19
Given to. Basically, the dot code 15 is as shown in FIG.
As can be seen from the above, since it is a black and white pattern, that is, binary information, it is binarized by this binarization circuit section 19. At that time, the threshold value determination circuit 44 adaptively determines the threshold value while determining the threshold value in consideration of the influence of disturbance, the influence of the signal amplitude and the like.
Value conversion is performed. Then, the demodulation unit 20 first demodulates it, and then supplies it to the data separation unit 22 where the audio information and control information (reproduction volume and reproduction speed by the dot codes 4 and 5 are determined depending on the presence or absence of the data type code 9). If the data is voice information, the data is input to the data string adjusting unit 21, and if the data is control information, the data is input to the control data analyzing unit 24.

In the data string adjusting unit 21, first, the block address detecting unit 46 detects the block address of the above-mentioned two-dimensional block, and then the block address error detecting and correcting unit 47 detects and corrects the block address error. After that, the address control unit 48 stores the data in the data memory unit 49 in block units. In this way, by storing in block address units, it is possible to store data without waste even if the data is lost on the way or entered from the middle.

After that, the data read from the data memory unit 49 is corrected by the data error correction unit 23. The output of the error correction unit 23 is further subjected to decompression processing for ADPCM by a decompression processing unit 25, and further, data uncorrectable data is interpolated by a data interpolation circuit 52. In addition, the control data analysis unit 2
4, the reproduction volume value is stored in the first memory 53 and the reproduction speed value is stored in the second memory 54 depending on whether the data is reproduction volume control data or reproduction speed control data according to the data type 9 of the control data block. Are supplied to the reproduction volume control unit 56 and the reproduction speed control unit 57 in the reproduction control unit 55.

The output of the data interpolation circuit 52 is temporarily stored in the buffer memory 58, converted into an analog signal by the D / A conversion section 59, and then the speaker 60 as an audio output device.
Is output to The operation timings of the buffer memory 58 and the D / A converter 59 are controlled by the reproduction speed controller 57, and the volume of the reproduction output of the speaker 60 is controlled by the reproduction volume controller 56.

Next, an example of reproducing the information on the sheet 1 as shown in FIG. 1 by using the audio information reproducing apparatus shown in FIG. 2 will be described. In the information reproducing apparatus, the dot code 15 (3) on the sheet 16 (paper surface 1) is illuminated by the light source 26, and the reflected light is reflected by the imaging optical system 27 and the spatial filter 2.
After being detected as an image signal by the imaging unit 29 via 8,
It is amplified by the preamplifier 30. Then, the dot codes 4 and 5 representing the menu of the reproduction volume and the reproduction speed are also illuminated by the light source 26 and taken into the detection unit 17. Regarding the order of loading dot codes 4 and 5, see dot code 1
It may be done before taking in No. 5.

In this way, the data supplied from the detection unit 17 is supplied to the scan conversion unit 18, the binarization circuit unit 19, the demodulation unit 20, and the data separation unit 22 as described above, and the presence or absence of the data type 9 is checked. If there is no data type 9 in all the blocks, the data string adjustment unit 21 and the data error correction unit 23 are supplied. Then, the data represented by the dot code 3 on the paper 1 is processed by ADPCM in the expansion processing unit 25.
Is expanded, the data interpolating circuit 52 interpolates the data whose error cannot be corrected, and then is temporarily stored in the buffer memory 58. Then, the D / A converter 59
The voice of the content recorded in the dot code 3 is output from the speaker 60 via the.

By the way, the data blocks for the reproduction volume control and the reproduction speed control represented by the dot codes 4 and 5 are separated from the data of the dot code 3 because the data separation section 22 has the data type 9 and is controlled. It is supplied to the data analysis unit 24. The volume value data corresponding to the dot code 4 is stored in the first memory 53 in the dot code 5
The data of the reproduction speed value corresponding to is stored in the second memory 54, respectively.

The reproduction speed controller 57 of the reproduction controller 55 controls the operation timing of the buffer memory 58 and the D / A converter 59 based on the reproduction speed value of the second memory 54. Further, the reproduction volume control unit 56 controls the reproduction volume of the speaker 60 based on the volume value of the first memory 53.

As a result, the information content recorded in the dot code 3 is output from the speaker 60 at the predetermined reproduction volume specified by the dot code 4 and the predetermined reproduction speed specified by the dot code 5. .

Since the initial values are set in the first memory 53 and the second memory 54, the initial values are referred to unless the parameters are changed by the control data.
Even while the playback device is performing the playback operation after scanning the playback control dot code, the playback device newly scans the playback control dot code as another menu, and When the type 9 is read, the reproduction speed and the reproduction volume are changed from the middle of reproduction according to the read control code data of the data area 7. This is performed by changing the control values of the reproduction speed control unit 57 and the reproduction volume control unit 56 of the reproduction apparatus of FIG. 2 described later even during reproduction.

However, the reproducing operation may be repeated again at the specified reproducing speed and reproducing volume. in this way,
On the same page, you can print and record a dot code that has a control menu for playback volume, playback speed, playback sound quality, etc. separately from audio information, and playback control can be performed with the same scan, so operability is good. Become.

Further, in the above-mentioned embodiment, the reproduction volume and the reproduction speed are described in the data block as the reproduction control menu, and a plurality of the same data blocks in which such control data is described are printed in the menu area. Playback control is selected by selecting an arbitrary menu area on the playback device side. However, the control data does not have to be divided into a plurality of blocks and printed.

For example, as shown in FIG. 3, the dot codes 4a and 5a of the menu indicating the reproduction volume and the reproduction speed may be printed and recorded as the reproduction control data so that the analog control can be performed. On the dot codes 4a and 5a of the reproduction volume and reproduction speed menus, control data blocks are printed side by side in order of increasing volume and increasing reproduction speed. By arranging in such an order, it becomes easy to confirm the reproduction volume and the reproduction speed. In this case, the reproduction volume and the reproduction speed are printed so that the analog continuous parameters are changed by continuous values for each block, and the values for each block are continuous in the menu area.

In this case, the control data analysis unit 24 calculates the average value of the values of the data areas 7 of all the read blocks 6 and then refers to the data type 9 to store the first memory 53 and the second memory 54. For example, if the volume value is selected, the average value is sent to the first memory 53.

As described above, by scanning the control parameters that continuously reproduce the reproduction volume and the reproduction speed in an analog manner, the analog control becomes possible, and the reproduction control with a slight adjustment can be performed.

According to the above embodiment of the present invention, the following constitution can be obtained. (1) In an information recording medium having a first area in which multimedia information including at least one of audio information, video information and digital code data is recorded as an optically readable code, An information recording medium characterized in that a control code for controlling a reproduction state is recorded in a second area different from the first area.

(2) The multimedia information includes at least audio information, and the control code is
It controls at least one of the type of sound, the reproduction volume, and the reproduction speed when reproducing the sound information, and a plurality of codes corresponding to different sound volumes, sound qualities, and speeds are separated into the second areas. The information recording medium as described in (1) above, wherein the information recording medium is arranged in the same manner.

(3) The multimedia information includes at least audio information, and the control code is
It controls at least one of the type of sound, the reproduction volume, and the reproduction speed when reproducing the sound information, and a plurality of codes corresponding to different sound volumes, sound qualities, and speeds are continuously arranged in the second area. The information recording medium as described in (1) above, which is arranged.

(4) An information reproducing apparatus for reproducing the information recording medium according to (1) above and outputting multimedia information, wherein the code recorded in the first area and the second area are recorded. A reading means for optically reading the recorded control code, a restoring means for converting the code read by the reading means into multimedia information, and an output means for outputting the multimedia information restored by the restoring means. The information reproducing apparatus is characterized in that the restoring means includes a reproduction control means for controlling a reproduction state of the multimedia information according to the control code read by the reading means.

According to the above configuration (1), since the code corresponding to the multimedia information to be reproduced and the control code are present on the same recording medium, the reproduction control can be performed by the same scanning, and therefore the operation is performed. It improves the sex. Moreover,
Since the operation menu can be increased on the recording medium,
Expandability increases. According to the configuration of (2) above, the expandability of the menu and the uniformity of the operation are improved with respect to the voice information,
A code corresponding to each code can be prepared. According to the above configuration (3), the playback volume and the playback speed can be controlled in an analog manner only by scanning the playback device.
Delicate control is also possible.

Further, according to the above configuration (4), since the code corresponding to the multimedia information to be reproduced and the control code are present on the same recording medium, the reproduction control can be performed by the same scanning. The operability is good and the expandability of the menu is enhanced. In addition, the reproduction volume and the reproduction speed can be controlled only by scanning the reproduction device.

[0050]

As described above, according to the present invention, an arbitrary reproduction menu desired by the player for reproducing the code is provided in the recording medium, not in the reproduction apparatus main body, so that the expandability of the menu related to reproduction is improved. An information recording medium that is fully equipped, does not increase cost, and does not deteriorate operability,
Also, it is possible to provide an information reproducing apparatus for reproducing the multimedia information from the information recording medium.

[Brief description of drawings]

FIG. 1 shows a first embodiment of the present invention, and is a diagram showing a paper surface which is an information recording medium as multimedia information and print contents.

FIG. 2 is a block diagram showing a configuration of a reproduction device for multimedia information.

FIG. 3 is a diagram showing another example of the first embodiment of the present invention, and is a diagram showing a paper surface which is an information recording medium as multimedia information and print contents.

[Explanation of symbols]

1 ... Paper surface, 2 ... Text, 3, 4, 4a, 5, 5a, 1
5 ... Dot code, 6 ... Block, 7 ... Data area,
8 ... Marker, 9 ... Reproduction speed control data, reproduction volume control data type, 10 ... Block address, 11 ... Address error detection, error correction data, 16 ... Sheet, 17
... Detection unit, 18 ... Scan conversion unit, 19 ... Binarization circuit unit, 2
0 ... Demodulation unit, 21 ... Data string adjustment unit, 22 ... Data separation unit, 23 ... Data error correction unit, 24 ... Control data analysis unit, 25 ... Decompression processing unit, 26 ... Light source, 27 ... Imaging optical system, 28 ... Spatial filter, 29 ... Imaging section, 30 ... Preamplifier, 31 ... External light shielding section, 32 ... A / D conversion section, 33 ...
Imaging unit control unit, 36 ... Image memory, 37 ... Marker detection unit, 38 ... Data array direction detection unit, 39 ... Address control unit, 40 ... Interpolation circuit, 41 ... Lens aberration distortion correction memory, 44 ... Threshold value determination circuit, 46 ... Block address detection unit, 47 ... Block address error detection and correction unit, 48
... address control section, 49 ... data memory section, 52 ... data interpolation circuit, 53 ... first memory, 54 ... second memory, 5
5 ... Reproduction control section, 56 ... Reproduction volume control section, 57 ... Reproduction speed control section, 58 ... Buffer memory, 59 ... D / A conversion section, 60 ... Speaker.

Claims (4)

[Claims] 1. An information recording medium having a first area in which multimedia information including at least one of audio information, video information and digital code data is recorded in an optically readable code. The control code for controlling the reproduction state of the code is the first one.
An information recording medium characterized by being recorded in a second area different from the above area. 2. The multimedia information includes at least audio information, and the control code controls at least one of audio type, reproduction volume, and reproduction speed when reproducing the audio information. The information recording medium according to claim 1, wherein a plurality of codes corresponding to different sound quality, volume, and speed are separately arranged in the second area. 3. The multimedia information includes at least audio information, and the control code controls at least one of audio type, reproduction volume, and reproduction speed when reproducing the audio information. The information recording medium according to claim 1, wherein a plurality of codes corresponding to different sound quality, volume, and speed are continuously arranged in the second area. 4. An information reproducing apparatus for reproducing the information recording medium according to claim 1 and outputting multimedia information, wherein the code recorded in the first area and the code recorded in the second area. A reading means for optically reading the control code, a restoring means for converting the code read by the reading means into multimedia information, and an output means for outputting the multimedia information restored by the restoring means, The information reproducing apparatus, wherein the restoring means includes a reproduction control means for controlling a reproduction state of the multimedia information according to the control code read by the reading means.