JPH06338061A - Recording medium and reproducing device - Google Patents

Abstract

PURPOSE:To obtain a recording medium and a reproducing device capable of recognizing the contents of FMV picture data when a disk including the FMV picture data is reproduced by a CD-I base case player. CONSTITUTION:A lead-in area 5 is provided on an innermost circumference of the CD-I disk 1, and at the outside thereof, an application program 6, the FMV picture data 66-68 and still picture data 69-71 are successively provided, then a lead-out area 10 is provided on an outmost circumference. The still picture data 69-71 are those of the contents corresponding respectively to the FMV picture data 66-68. When this disk is reproduced by the CD-I base case player, the constitution of hardwares is confirmed by the application program 6, and the still picture data 69-71 are reproduced when the player does not correspond to the FMV.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium for recording a video signal and an audio signal, and a reproducing apparatus for reproducing the recording medium, which is, for example, a CD-I, and will be referred to as C
A D-I disc and a CD-I player will be described as an example.

[0002]

2. Description of the Related Art FIG. 12 is a plan view showing the structure of a conventional CD-I disk. In the figure, 1 is a disk and 2 is data on the disk 1 such as video, audio and programs. A data area, 3 is a lead-in area in which the reproduction time of each track on the disc 1 and the reproduction time of the entire disc are recorded, and 4 is a lead-out area indicating the end of the contents on the disc 1.

FIG. 13 is a diagram showing an example of the track configuration of the disc 1 in FIG. 12, in which 5 is a lead-in area, 6 is an application program in the data area 2, 7 is data A, 8 is data B, Reference numeral 9 is data C, and 10 is a lead-out area.

FIG. 14 is a diagram showing the internal structure of the data track shown in FIG. 13. In the figure, 11 is a sync which is a synchronizing signal, 12 is a header showing the reproduction time of the track, and 13 is the data type and coding of the track data. A subheader indicating information and the like, 14 is actual data.

FIG. 15 is a block diagram showing the structure of a conventional CD-I base case player (a player having a minimum function that can be called a CD-I player).
In the figure, 15 is a spindle motor for rotating the disk 1, 16 is an optical pickup for extracting a signal from the disk 1, 17 is an RF amplifier for amplifying the signal extracted by the optical pickup 16, and 18 is a CD output from the signal output from the RF amplifier 17. CD reproduction circuit for reproducing signals, 19 is a CD
A CD-ROM reproducing circuit for reproducing a CD-ROM signal from an output signal of the reproducing circuit 18, a system controller 20 connected to the CD reproducing circuit 18 and the CD-ROM reproducing circuit 19, for controlling a CD player portion, 2
Reference numeral 1 denotes a pickup servo circuit connected to the system controller 20 for controlling the optical pickup 16;
Is a spindle servo circuit that controls the rotation of the spindle motor 15 according to signals from the CD reproducing circuit 18 and the system controller 20, 23 is a pointing device, 24 is a system bus of the CD-I system, and 25 is 68000 connected to the system bus 24. System CPU, 26
Is a DMA controller connected to the system bus 24,
27 is a system ROM including an OS connected to the system bus 24; 28 is a non-volatile RAM connected to the system bus 24; 29 is a video controller connected to the system bus 24; 30 is connected to the video controller 29. RAM, 31 is a video decoder for decoding the signal output from the video controller 29, 32 is a D / A converter for D / A converting the signal output by the video decoder 31, and 33 is a video encoder connected to the D / A converter 32. , 34 are video output terminals for outputting the signals from the video encoder 33. Further, 35 is an audio decoder connected to the CD reproducing circuit 18 and the system bus 24, 36 is a D / A converter for D / A converting the output signal of the audio decoder 35, and 37 is a low-pass connected to the D / A converter 36. Filter (hereinafter,
"LPF" is abbreviated), 38 is an amplifier for amplifying the signal from the LPF 37, and 39 is an audio output terminal for outputting the signal from the amplifier 38.

FIG. 16 is a diagram showing the internal structure of a conventional player for full motion video (hereinafter abbreviated as "FMV") that uses MPEG moving pictures. In the figure, the same symbols as in FIG. 15 represent the same parts, 40 is an MPEG video decoding chip for decoding the FMV signal, 41 is a RAM for frame memory, 42 is connected to the video decoder 31 and the MPEG video decoding chip 40. It is an adder circuit.

FIG. 17 is a block diagram showing the internal structure of the MPEG video decoding chip 40 in FIG. 16, in which 43 is a buffer, 44 is an inverse VLC connected to the buffer 43, and 45 is an inverse VLC 44. Inverse quantizer, 46 is an inverse DCT connected to the inverse quantizer 45,
Reference numeral 47 is an adder connected to the inverse DCT 46, and 48 is a predictor connected to the adder 47.

FIG. 18 is a diagram showing an inter-picture prediction diagram of motion compensation prediction by the MPEG encoding algorithm.
Is an intra-coded image (hereinafter abbreviated as “I picture”), 50 is a bidirectional predictive coded image (hereinafter abbreviated as “B picture”), 51 is a B picture, and 52 is a forward predictive coded image (hereinafter, “ Abbreviated as "P picture"), 53 is a B picture, 54 is a B picture, 55 is a P picture, and 56 is a B picture.
Picture, 57 is B picture, 58 is P picture, 59
Is a B picture, 60 is a B picture, and 61 is an I picture.

FIG. 19 is an internal block diagram of a player compatible with MPEG audio, for example. In the figure, the same reference numerals as those in FIG. 15 represent the same parts, 62 is an MPEG audio decoding chip for decoding an MPEG audio signal, 63 is an output signal of the audio decoder 35 and an output signal of the MPEG audio decoding chip 62. It is a selection circuit.

Next, the operation will be described. In FIG. 15, a spindle motor 15 rotates the disk 1 at a constant linear velocity. The optical pickup 16 irradiates the rotating disc 1 with a laser to detect a signal on the disc 1. The signal detected by the optical pickup 16 is amplified by the RF amplifier 17 and sent to the CD reproducing circuit 18. CD
The reproducing circuit 18 performs signal processing, such as EFM demodulation, error correction by CIRC, and sub-coding synchronization detection, which is performed in a normal CD player, and outputs various signals to each circuit. The spindle servo circuit 22 detects the phase difference between the signal from the CD reproducing circuit 18 and the signal from the system controller 20, and controls the spindle motor 15 so that the disk 1 rotates accurately at a constant linear velocity.

The pickup servo circuit 21 performs control such as tracking and focusing necessary for the optical pickup 16 to accurately detect a signal based on the signal from the system controller 20. The system controller 20 determines the type of data by the signal received from the CD reproduction circuit 18, determines the destination of the CD reproduction data, controls the pickup servo circuit 21, the spindle servo circuit 22 and the like, and through the system bus 24. In accordance with commands from the 68000 system CPU 25, control such as reproduction and stop of the disc 1 is also performed.

The CD-ROM reproduction circuit 19 ROM-decodes the signal reproduced by the CD reproduction circuit 18 and places it on the system bus 24. The 68000 CPU 25 is a microprocessor unit of the CD-I system. The DMA controller 26 performs data transfer from the CD-ROM reproduction circuit 19 to the RAM 30 and data transfer from one portion of the RAM 30 to another portion without using the 68000 CPU 25.

The nonvolatile RAM 28 secures system information and is also used for application data. The system ROM 27 is equipped with the OS of the CD-I system and performs all controls. The video controller 29 serves as an interface between the system bus 24, the RAM 30, and the video decoder 31, respectively.

CD-D output from the CD reproducing circuit 18
The A signal is sent to the audio decoder 35, and the CD-R
The signal output from the OM reproducing circuit 19 is sent to the video decoder 31 and the audio decoder 35 either directly or after being sent to the RAM 30 once. The video decoder 31 decodes a signal coded by a coding method such as DYUV, CLUT, RL, and RGB, and sends it to the D / A converter 32. D / A converter 3
The signal converted from digital to analog by 2 is
The video encoder 33 produces a composite video signal, which is output to the video output terminal 34.

On the other hand, in the audio decoder 35, decoding according to the level of the ADPCM audio signal sent thereto is performed, and after being converted into an analog signal by the D / A converter 36, an audio output terminal 39 is passed through the LPF 37 and the amplifier 38. Is output to.

In the case of an FMV compatible player, FIG.
In FIG. 15, the moving image signal decoded in the MPEG video decoding chip 40 is sent to the adding circuit 42, the video signal combined with the output signal of the video decoder 31 is sent to the D / A converter 32, and the following FIG. Similarly, a composite video signal is output. The RAM 41 is for storing image data in units of 2 frames, and
This is because the EG method takes a difference from two frames before and after.

Next, the operation of the MPEG video decoding chip 40 will be described. In FIG. 17, the buffer 43
The signal sent from the signal is modulated and decoded in the inverse VLC 44. The signal output from the inverse VLC 44 is inversely quantized by the inverse quantizer 45. The signal inversely quantized by the inverse quantizer 45 is inversely DCTed by the inverse DCT 46 and then added by the adder 4
Sent to 7. In the adder 47, the output of the predictor 48 and the output of the inverse DCT are added and output, and the predictor 48
Is also sending a signal. In order to reduce the redundancy in the spatial axis direction, the tunable decoding and the inverse DCT are operations for restoring the DCT and the tunable coding performed at the time of coding, and the predictor 4
The addition of the output of 8 and the output of the inverse DCT 46 is a work of performing motion compensation at the time of encoding in order to reduce the redundancy in the time axis direction and restoring the work of taking the difference between images. .

Next, motion compensation prediction will be described. In FIG. 18, the I picture is an image in which the input image itself is encoded, and the I picture 49 and the I picture 61 correspond to it. The P picture 52 is an image in which only the difference value is coded by taking the difference from the temporally preceding image,
The P picture 52 takes the difference from the I picture 49, the P picture 55 takes the difference from the P picture 52, and the P picture 5
8 is to take the difference from the P picture 55.

A B picture is an image in which a difference between temporally forward and backward or interpolated images created from the front and the rear is taken and only the difference value is coded.
Take the difference from the picture 49 or P picture 52,
The same applies to the B picture 51. The B picture 53 is to take the difference from the P picture 52 or the P picture 55. With respect to the other B pictures, the difference is obtained in the same manner, and only the difference value is encoded.

The operation of the player when MPEG audio is adopted as the extended function is shown in FIG.
The MPEG audio signal is sent from the reproducing circuit 19 to the MPEG audio decoding chip 62 through the system bus 24, and the signal decoded by the MPEG audio decoding chip 62 is selected by the selection circuit 63 and sent to the D / A converter 36. Thereafter, an audio signal is output as in the case of FIG.

[0021]

DISCLOSURE OF THE INVENTION Conventional CD-I disc, CD-I base case player and FMV compatible C
Since the D-I player is configured as described above,
The CD-I base case player having the minimum required configuration cannot play back a disc adopting the FMV, which is one of the extended functions, and it is not possible to know the contents of the disc other than using the FMV compatible player. It was possible.

Further, since the FMV compatible player needs to mount an MPEG video decoding chip for reproducing the FMV signal, there is a problem that a large increase in cost cannot be avoided. This is an extended function, for example MPE
The same can be said when G voice is adopted.

The present invention has been made in order to solve the above problems, and even if a recording medium on which information by the extended function is recorded is reproduced by a reproducing apparatus having no extended function, the recording medium is It is an object of the present invention to obtain a recording medium and a reproducing apparatus for the recording medium, the contents of which can be confirmed.

[0024]

A recording medium according to a first aspect of the present invention is used when moving image information, still image information corresponding to the moving image information, and a reproducing apparatus cannot process the moving image information data. Is an application program for reproducing still image information instead of moving image information.

The recording medium according to the second aspect of the present invention includes both high-quality voice information encoded by the first encoding method and voice information encoded by the second encoding method with lower sound quality. Is recorded.

The reproducing apparatus according to the third aspect of the present invention includes means for converting the moving image information into still image information and displaying it as a still image on the display device when the disc to be reproduced is a disc containing moving image information. Be prepared.

The reproducing apparatus according to the fourth invention reproduces the recording medium on which the first information which cannot be reproduced and the second information which can be reproduced by the reproducing apparatus corresponding to the first information are recorded. At this time, when reproduction or output of the first information is requested, a means for reproducing the second information corresponding to the first information is provided.

[0028]

The recording medium according to the first aspect of the present invention, when reproduced by a reproducing apparatus having no moving image information processing function, displays a still image corresponding to the moving image information instead of the moving image.

The recording medium according to the second aspect of the present invention reproduces a disc on which the first audio information is recorded by a reproducing device which does not correspond to the first audio information encoded by the first encoding method. In this case, the second audio information encoded by the second encoding method is reproduced instead of the first audio information.

When reproducing a disc on which moving picture information is recorded, the reproducing apparatus according to the third invention takes out still picture information contained in the moving picture information and displays the still picture.

In the reproducing apparatus according to the fourth aspect of the invention, when reproducing a disc having the first information having no reproducing function and the second information corresponding to the first information, the designated first information is reproduced. Instead of, the corresponding second information is reproduced.

[0032]

【Example】

Example 1. An embodiment of the first invention will be described below with reference to the drawings. FIG. 1 is a plan view showing the structure of a CD-I disk in this embodiment. In the figure, the same reference numerals as those in FIG. 12 represent the same parts, 64 is an FMV image data area in which FMV image information is recorded, and 65. Is a still image data area in which still image information corresponding to the FMV image information is recorded.

FIG. 2 is a diagram showing the structure of the tracks of the disc 1. In the figure, the same reference numerals as in FIG. 13 represent the same parts, 66 is FMV image data A, 67 is FMV image data B, and 68 is an FMV image. Data C, 69 is data in the still image data area, still image data A corresponding to the FMV image data A, 70 is still image data B corresponding to the FMV image data B, 71 is still image data corresponding to the FMV image data C. It is C.

FIG. 3 is a flowchart when the application program 6 on the disk 1 is started.

Next, as an example, the operation when the disc 1 having the track structure shown in FIG. 2 is reproduced in the CD-I base case player shown in FIG. 15 will be described. In the figure, the application program 6 normally reproduces FMV image data A66, FMV image data B67, and FMV image data C68 for an FMV-compatible player to obtain moving image information, but in the player of FIG. 15, the FMV image information is recorded. Since an MPEG video decoding chip for decoding the FMV signal is not mounted even when trying to reproduce the existing data area, the video decoder 21 has the FMV signal which is an extended function, the FMV image data A66 in FIG. 2 and the FMV image. The data B67, the FMV image data C68, etc. cannot be decoded, and moving image information cannot be extracted.

Therefore, the application program 6 of the disk 1 is programmed so as to operate as shown in FIG. First, when the player is powered on, the application program 6 is loaded into the RAM 30. Program 6 is a system ROM before showing how to play
I went to read the file (file named systemtype.d) in OS 27 which describes the hardware of the OS, and read this file. The hardware configuration is confirmed by referring to the file d, and if a MP-like player like the CD-I player shown in FIG.
If there is the EG video decoding chip 40, an instruction is issued to reproduce the FMV image data area 64, and the FMV image data A66, FMV image data B67, FMV image data C68, etc. shown in FIG. 2 are reproduced.

On the other hand, when the MPEG video decoding chip 40 is not provided, the still image data area 65 is reproduced so that the still image data A69 and the still image data B7 are reproduced.
The corresponding data such as 0 and still image data C71 is reproduced. As a result, a still image is displayed instead of displaying the FMV image.

In the above description, the data arrangement is FM.
The V image data is on the inside and the still image data is on the outside,
The arrangement of each data area is not limited to this. Further, although each has three tracks, the number of tracks is not limited to this.

Example 2. FIG. 4 is a plan view showing the structure of a CD-I disc according to an embodiment of the second invention. In the figure, the same reference numerals as those in FIG.
MP with higher sound quality than ADPCM voice which is D-I voice
An MPEG audio data area in which EG audio information is recorded, and 73 is an ADPCM audio data area in which ADPCM audio information in which the same content as the data in the MPEG audio data area 72 is encoded by ADPCM is recorded.

FIG. 5 is a diagram showing the structure of the tracks of the disk 1. In the figure, the same symbols as in FIG. 13 represent the same parts, 74 is MPEG audio data A, 75 is MPEG audio data B, and 76 is MPEG audio. Data C and 77 are ADP
ADPCM audio data A, 78 corresponding to the MPEG audio data A74 in the CM audio data area 73 is ADPCM audio data B, 79 corresponding to the MPEG audio data B75.
Is ADPCM audio data C corresponding to MPEG audio data C76.

FIG. 6 is a flow chart showing the operation at the time of starting the application program 6 on the disk 1.

Next, as an example, the operation when the disc 1 having the track structure shown in FIG. 5 is reproduced in the CD-I base case player shown in FIG. 15 will be described. In the figure, the disc 1 is reproduced and the CD-ROM reproduction circuit 19
The MPEG audio sent from the audio decoder 35 to the audio decoder 35 cannot decode the CD-ROM playback signal because the audio decoder 35 does not support the MPEG audio decoding function, and thus the MPEG audio data A74, the MPEG audio data B75, and the MPEG audio data C76. It is impossible to get the audio output by playing etc.

Therefore, the application program 6 of the disk 1 is programmed so as to operate as shown in FIG. First, when the power of the player is turned on, the application program 6 showing the reproducing method of the disc 1 recorded on the disc 1 is loaded into the RAM 30 through the system bus 24. The program 6 has a description about the hardware configuration in the system ROM 27 before instructing the reproduction method, type. By referring to the file named d and knowing the internal structure of the CD-I player, it is possible to know whether or not the MPEG audio decoder exists. Therefore, if the MPEG audio decoding chip 62 is present as in the player shown in FIG. 19, the CPU 86000 is instructed to reproduce the MPEG audio data area 72, and the MPEG audio data A74 and MPEG audio data shown in FIG. B75, MPEG
The audio data C76 or the like is reproduced.

On the other hand, if the MPEG audio decoding chip 62 is not provided, the ADPCM audio data area 73 is reproduced to decode the ADPCM audio data A77, ADPCM audio data B78, ADPCM audio data C79, etc. by the audio decoder 35. You can do it. As a result, even if the high-quality MPEG audio information cannot be reproduced, it is possible to obtain the same information information by reproducing the ADPCM audio which is the normal CD-I audio.

In the above description, the data arrangement is MPE.
The G audio data is set to the inner circumference and the ADPCM sound data is set to the outer circumference, but the arrangement of each data area is not limited to this. Further, although each has three tracks, the number of tracks is not limited to this.

Example 3. FIG. 7 is a diagram showing an internal structure of a CD-I player according to an embodiment of the third invention. In the figure, the same reference numerals as those in FIG.
A simple decoding circuit for converting the MV signal into a still image, and 81 is an adding circuit for adding the outputs of the video decoder 31 and the simple decoding circuit 80.

FIG. 8 is a block circuit diagram of a configuration example of the simple decoding circuit 80. In the figure, the same reference numerals as those in FIG. 17 represent the same parts. This has a configuration in which the predictor 48 and the adder 47 are removed from the MPEG video decoding chip 40 in FIG.

FIG. 9 is a diagram showing the principle of image decoding by the simple decoding circuit 80. In the figure, the same symbols as in FIG. 18 represent the same parts, 82 is a B picture, 83 is a B picture, 8
4 is a P picture, 85 is a B picture, 86 is a B picture, 87 is a P picture, 88 is a B picture, 89 is a B picture, 90 is a P picture, 91 is a B picture, 92 is a B picture, and 93 is an I picture. is there.

FIG. 10 is a flow chart showing a reproduction procedure when reproducing a disc with this CD-I player.

Next, the operation will be described. In FIG. 8, since the simple circuit decoding circuit 80 has a configuration in which the predictor 48 is omitted, motion compensation prediction is not performed, and image information that should originally be decoded by the MPEG decoding circuit as shown in FIG. 9 is input. Then I picture 49 starts 11
Only every other image, that is, only the I pictures 61 and 93 are reproduced. This is because the I-picture does not perform motion compensation prediction using only closed information in one image, so that the image can be decoded without using the predictor 48. In other words, P pictures and B pictures of other pictures for which motion compensation prediction is performed.
A picture or the like cannot be decoded, and a reproduced image is obtained as a pseudo image like a frame drop.

Further, in the flow chart of FIG.
The data specified by the application program 6 when there is a request for image reproduction is reproduced, and the CD reproduction circuit 18, C is reproduced.
In the D-ROM reproduction circuit 19, CD reproduction,
CD-ROM reproduction is performed. Then, based on the value of the sub-header 13 shown in FIG. 14, it is possible to judge whether the data to be reproduced is FMV image data. If the reproduced data is not FMV image data, it is decoded by the conventional video decoder 31, and if it is FMV image data, only the still image of FMV is obtained by the simple decoding circuit 80, that is, the I picture 49 shown in FIG.
The I picture 61 and the I picture 93 are reproduced to display the video signal.

As described above, the video signal decoded by the simple decoding circuit 80 is added to the video signal decoded by the video decoder 31 by the adding circuit 81 to obtain D.
Will be sent to the / A converter 32. The subsequent operation is similar to that of the conventional example.

In this embodiment, the hardware decodes only the still image portion of the FMV image data.
This may be done by software using a microprocessor.

Example 4. FIG. 11 is a flowchart showing the operation of the CD-I player in the fourth embodiment of the invention. Since the system configuration itself is the same as that of the conventional CD-I player, the description thereof will be omitted. The CD-I player according to this embodiment reproduces a disc having both the FMV image data and the still image data corresponding to the FMV image data as shown in the first embodiment of the invention, when the disc side ( Player side (firmware side), not software side)
It corresponds to.

In the flowchart of FIG. 11, when an image reproduction request is issued from the application program 6, it is judged whether the image is FMV image data by referring to the sub-header 13 shown in FIG. 14, and the designated data is FMV. If it is image data, still image data corresponding to the FMV image data is reproduced, and if it is not FMV image data, the specified data is reproduced. Then, the reproduced data is decoded by the video decoder 31 and an image is displayed.

[0056]

As described above, according to the first aspect of the present invention, since the moving image information and the still image information related to the moving image information are owned in the disc, even a reproducing apparatus having no moving image information processing function can record the moving image information. The effect that the contents of the medium can be known can be obtained.

According to the second aspect of the present invention, the high-quality first audio information and the second audio information encoded by the encoding method of which the sound quality is inferior to that of the first audio information are owned together with the disc. Therefore, even if the reproducing device does not have the first audio information reproducing function, the contents of the recording medium can be known by reproducing the second audio information instead of the high-quality first audio information. To be

According to the third invention, the moving image information is converted into the still image information and the still image is displayed. Therefore, even when the recording medium containing the moving image information is applied, the moving image information of the recording medium is The effect that the contents can be confirmed is obtained.

According to the fourth aspect of the invention, when there is a request to reproduce the first information which the apparatus does not have a reproducing function from the recording medium having the first information and the second information, the first information is reproduced. Since the second information, which is easier to process the signal than the information, is reproduced, it is possible to obtain the effect of being able to know the outline of the recording medium even if the first information cannot be processed.

[Brief description of drawings]

FIG. 1 is a plan view showing a data arrangement of a CD-I disk according to an embodiment of the first invention.

FIG. 2 is a diagram showing a track configuration of a CD-I disk in an embodiment of the first invention.

FIG. 3 is a flowchart showing an operation of an application program for a CD-I disc in the embodiment of the first invention.

FIG. 4 is a plan view showing a data arrangement of a CD-I disk according to an embodiment of the second invention.

FIG. 5 is a diagram showing a track configuration of a CD-I disk according to an embodiment of the second invention.

FIG. 6 is a flow chart showing an operation of an application program for a CD-I disc in an embodiment of the second invention.

FIG. 7 is a block circuit diagram showing a configuration of a CD-I player according to an embodiment of the third invention.

FIG. 8 is a block circuit diagram showing a configuration example of a simple decoding circuit of a CD-I player according to an embodiment of the third invention.

FIG. 9 is a diagram showing a decoding principle of a simple decoding circuit of a CD-I player according to an embodiment of the third invention.

FIG. 10 is a flowchart showing the operation of the CD-I player in the third embodiment of the invention.

FIG. 11 is a flowchart showing the operation of the CD-I player in the embodiment of the fourth invention.

FIG. 12 is a plan view showing a data arrangement of a conventional CD-I disc.

FIG. 13 is a diagram showing a track configuration of a conventional CD-I disc.

FIG. 14 is a CD-I of a conventional example and each example of the present invention.
It is a figure which shows the internal structure of the data track of a disc.

FIG. 15 is a block circuit diagram showing a configuration of a conventional CD-I player.

FIG. 16 is a block circuit diagram showing a configuration of a conventional FM-V compatible CD-I player.

FIG. 17: MP of a conventional FMV compatible CD-I player
It is a block circuit diagram which shows the structure of an EG video decoding chip.

FIG. 18: MP of a conventional FMV compatible CD-I player
It is a figure which shows the decoding principle of an EG video decoding chip.

FIG. 19 is a block circuit diagram showing a configuration of a conventional MPEG audio compatible CD-I player.

[Explanation of symbols]

 1 disk 2 data area 3 lead-in area 4 lead-out area 5 lead-in area 6 application program 10 lead-out area 11 sink 12 header 13 subheader 14 data 15 spindle motor 16 optical pickup 17 RF amplifier 18 CD reproducing circuit 19 CD-ROM reproducing Circuit 20 System Controller 21 Pickup Servo Circuit 22 Spindle Servo Circuit 23 Pointing Device 24 System Bus 25 68000 CPU 26 DMA Controller 27 System ROM 28 Nonvolatile RAM 29 Video Controller 30 RAM 31 Video Decoder 32 D / A Converter 33 Video Encoder 35 Audio Decoder 36 D / A converter 37 Low-pass filter 38 Amplifier 40 M EG video decoding chip 41 RAM 42 adder circuit 43 buffer 44 inverse VLC 45 inverse quantizer 46 inverse DCT 47 adder 48 predictor 49 I picture 50 B picture 51 B picture 52 P picture 53 B picture 54 B picture 55 P picture 56 B picture 57 B picture 58 P picture 59 B picture 60 B picture 61 I picture 62 MPEG audio decoding chip 63 selection circuit 64 FMV image data area 65 still image data area 66 FMV image data A 67 FMV image data B 68 FMV image Data C 69 Still image data A 70 Still image data B 71 Still image data C 72 MPEG audio data area 73 ADPCM audio data area 74 MPEG audio data A 75 MPEG audio data B 7 6 MPEG audio data C 77 ADPCM audio data A 78 ADPCM audio data B 79 ADPCM audio data C 80 Simple decoding circuit 81 Adder circuit 82 B picture 83 B picture 84 P picture 85 B picture 86 B picture 87 P picture 88 B picture 89 B picture 90 P picture 91 B picture 92 B picture 93 I picture

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[Procedure amendment]

[Submission date] January 10, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0027

[Correction method] Change

[Correction content]

The reproducing apparatus according to the fourth invention, the reproduction instrumentation
When reproducing the first information that can not be played on location, the recording medium and the second information can be reproduced is recorded in the reproducing apparatus corresponding to the first information, playback or output of the first information Is requested, the means for reproducing the second information corresponding to the first information is provided.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0031

[Correction method] Change

[Correction content]

The reproducing apparatus according to the fourth invention, the reproduction instrumentation
When the disc reproduces the first information having no reproducing function and the second information corresponding to the first information, the corresponding second information is used instead of the designated first information. To play.

[Procedure 3]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 3

[Correction method] Change

[Correction content]

[Figure 3]

[Procedure amendment 4]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 6

[Correction method] Change

[Correction content]

[Figure 6]

[Procedure Amendment 5]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 19

[Correction method] Change

[Correction content]

FIG. 19

Claims (4)

[Claims] 1. Checking moving image information, still image information corresponding to this moving image information, and a system of a reproducing device,
A recording medium having an application program for reproducing still image information corresponding to a specified moving image when the reproducing device cannot reproduce the moving image information. 2. First audio information encoded by the first encoding method, and second audio information having the same contents as the first audio signal and encoded by the second encoding method. Information and an application program for checking the system of the reproducing device and reproducing the second audio information corresponding to the designated first audio information when the reproducing device cannot reproduce the first audio information. Recording medium. 3. A reproducing apparatus for reproducing a still image on a display device by reproducing a recording medium on which still image information and a program showing a display method for displaying this information as a still image on a display device are recorded. If the recording medium to be reproduced includes moving image information, the reproducing device is provided with means for extracting still image information from the moving image information and displaying it on a display device. 4. A reproducing apparatus for reproducing a recording medium on which first information and second information corresponding to the first information and having different reproduction processing means are recorded, the reproducing apparatus comprising: A reproducing apparatus comprising means for reproducing second information corresponding to the first information when reproduction is instructed.