JP3547060B2 - Information supply device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an information supply device for supplying information for external output to an information output side that performs external output, and for example, an external output in which a plurality of types of information such as video and audio are paired. The present invention relates to a technique for supplying information.
[0002]
2. Description of the Related Art
2. Description of the Related Art Video-on-demand (VOD) services that allow a user to view a desired movie or the like when desired, for example, have been studied. For example, when a desired video broadcast is requested from a set-top box (STB) provided on the user side serving as an information output side, the VOD service is transmitted from an information supply device called a video server provided on the service provider side. Then, the video / audio corresponding to the request is transmitted to the user.
[0003]
Upon receiving a video broadcast request from a user, the video server transmits the requested video information to the STB of the user. Therefore, the video server includes an information storage device, and the information storage device stores video information including video and audio. In this case, the audio signal converted into digital data and the video signal converted into digital data are packetized before being recorded in the storage device, and further converted into one digital data string by the multiplexer, and then recorded in the storage device. .
[0004]
This will be specifically described with reference to FIG. The video signal V1 is input to the video encoder 101 and converted into a digital data sequence V2, then input to the packetizer 103 and formed into a packet sequence (this packet sequence is referred to as V3), and then input to the multiplexer 105. On the other hand, the audio signal A1 is input to the audio encoder 111 and converted into a digital data sequence A2, and then input to the packetizer 113 to be converted into a packet sequence (this packet sequence is described as A3) and then input to the multiplexer 105. You. Then, the packet sequence V3 on the video signal side and the packet sequence A3 on the audio signal side are converted into a single packet sequence by the multiplexer 105 to become a new packet data sequence VA. Then, the packet data sequence VA is recorded in the auxiliary storage device 111 via the input interface 129 connected to the bus 139 and the auxiliary storage device control unit 132.
[0005]
When a reproduction request is issued from the terminal device 136, the reproduction request is transmitted to the input / output control unit 131 through the head amplifier 134 and the modem 135. The input / output control unit 131 controls the auxiliary storage device control unit 132 to read the packet data sequence VA corresponding to the request stored in the auxiliary storage device 111, and output the packet data sequence VA via the output interface 133 and the head amplifier 134. 136. Thus, desired information is supplied to the terminal device 136 side.
[0006]
On the other hand, in a conventional communication karaoke, for example, music information is stored as a MIDI file and lyrics telop information is stored as a text file on a terminal device side, and when playing a music, a background image corresponding to the requested music is stored in a server. Side, and the terminal device combines it with the lyrics telop and displays it. This is because if each terminal device also includes background video information, a large storage device is required for each terminal device, so the background video is stored on the server side, and the terminal device has the background when it is needed. By receiving the video information, the size of each terminal device can be reduced.
[0007]
By the way, with the development of multimedia technology in recent years, it is desired that one STB has multiple functions. The above-mentioned video server is a multimedia server that can perform not only video broadcasting by VOD but also various services such as game, shopping, and education. If a user has one STB, the user can watch a movie and play a game. You can also do shopping and shopping. In a situation where the infrastructure is being constructed in such a direction, it would be desirable if karaoke could be enjoyed using the same STB.
[0008]
However, applying the current communication karaoke as it is causes the following inconveniences. That is, in order to add a karaoke function, it is necessary to add a storage device (such as a hard disk) for storing music information and lyrics telop information to the STB, resulting in an increase in cost and an increase in size. Therefore, as in the case of the movie described above, it is preferable to have the server supply all information for karaoke, that is, all music information, lyrics telop information, and background video per song.
[0009]
However, in the same manner as in the case of the movie described above, for example, when data of 10,000 songs is stored on the server side, information in which a background image and music information for karaoke performance are paired for each song is required. 10000 background images will be stored in the information storage device. Here, let's consider the specialty of karaoke. In the case of the above-described movie, the video does not have to be common for each movie, but the background video for karaoke can be shared. In other words, this background video is used for the purpose of enlivening the atmosphere when enjoying karaoke, and it is not always necessary to prepare a unique background video.
[0010]
For this reason, as proposed by the applicant of the present invention in the past, many background images are set based on, for example, the genre of a song, and the background image according to the genre of the requested song is used. Thus, the same background video can be used for a plurality of songs. This makes it possible to drastically reduce the total amount of video information to be prepared, as compared to a case where a background video is set for each music, while a background video sufficiently matching the music is obtained.
[0011]
Therefore, it is desired that the advantages cultivated in the field of karaoke be utilized even when configuring the server described above.
The present invention has been made in view of the above circumstances, and has as its object the purpose of which one service information is formed by combining video and audio, such as karaoke, and one of the information for service (in this case, In the case where the video is used in another service (in this case, another music), the total storage amount of the information supply device is to be reduced.
[0012]
Means for Solving the Problems and Effects of the Invention
The invention according to claim 1 which has been made to achieve the above object,
An information supply device for supplying information for external output via a transmission path to an information output side that performs external output,
When the external output information is composed of a combination of a plurality of types of information, and when at least one of the constituent information can be used in combination with a plurality of external output information, the information can be used repeatedly. First storage means for storing important first information;
Second storage means for storing second information that is a component other than the first information;
The first information read from the first storage means when a request is made from the information output side, and the first information 1 Information synthesizing means for synthesizing the second information read from the second storage means, which is combined with the information described above, to complete the external output information as one digital data string;
An information supply device for supplying the external output information in a state where the information is completed by being synthesized by the information synthesizing means.
[0013]
The invention described in claim 2 is
The information supply device according to claim 1,
The first and second storage means store the first and second information in the form of digital data strings, respectively.
The information synthesizing means includes packetizing means for packetizing the first and second information read from the first and second storage means, respectively. An information supply device configured to be completed as external output information in the form of a digital data string of a book.
[0014]
The invention according to claim 3 is:
The information supply device according to claim 1,
The first and second storage means store the first and second information in the form of packetized digital data strings, respectively.
The information synthesizing means is configured to synthesize the first and second information read from the first and second storage means and complete the digital output as one piece of digital data string for external output. An information supply device characterized by the following.
[0015]
The invention described in claim 4 is
4. The information supply device according to claim 1, wherein the first information is video information, and the second information is music information. 5.
[0016]
The invention according to claim 5 is
5. The information supply device according to claim 4, wherein the first information is background video information, and the second information is music information for karaoke performance.
[0017]
The information supply device according to claim 1 having the above-described configuration supplies information for external output via a transmission path to an information output side for executing external output. And voice, and a combination of a plurality of types of information, and at least one of the constituent information, the same information can be used in duplicate for a plurality of external output information Information. The external output information is not stored in a completed state, but the first storage means stores the first information which can be used repeatedly, and the second storage means stores the first information which can be used repeatedly. Second information that is a component other than the possible first information is stored.
[0018]
Then, when the information synthesizing unit receives a request from the information output side, the first information read from the first storage unit and the first information 1 Is combined with the second information read from the second storage means to complete one piece of digital data string as external output information, and the external output in this completed state is completed. Information is supplied to the information output side.
As described in claim 2, the first and second information are stored in a state of being converted into a digital data sequence, and the first and second information are read out at the time of supplying the information, and are respectively packetized. The information may be synthesized later and completed as one piece of digital data string for external output.
[0019]
Further, as described in claim 3, the first information and the second information are stored in the form of packetized digital data strings, respectively, and they are combined at the time of supplying information to form one digital data string. May be completed as the external output information.
[0020]
The external output information having the above-mentioned properties includes information for a karaoke service as described in claim 4. For example, the first information that can be used repeatedly is background video information, and the second information that is another component is music information for karaoke performance. In this case, by setting a predetermined number of background images based on the genre of the karaoke song and the like, and using the background image according to the genre of the requested song and the like, the same background image can be obtained for a plurality of songs. Can be used. This makes it possible to drastically reduce the total amount of video information to be prepared, as compared to a case where a background video is set for each music, while a background video sufficiently matching the music is obtained.
[0021]
For example, consider an example of karaoke. If the genre of karaoke songs is divided into two categories, enka and pop, 100 background songs and 200 songs in total are provided for each, and the same background video is used repeatedly for a plurality of songs. It is only 1/50 as compared to preparing songs. As described above, especially for the background video of karaoke, since one video can be used repeatedly for a plurality of songs, the background video and music information are not stored in advance as a set for each song, but are individually stored. It is preferable that the data is stored for the first time when the data is supplied to the information output side so that the data is synthesized and completed.
[0022]
This is not limited to karaoke. As described above, for example, a plurality of types of information such as video and audio are configured as a pair, and at least one of the constituent information is the same information for a plurality of external output. The same effect can be obtained if the information is external output information that can be used overlapping with the information. For example, even in the case of a movie, besides the original, dubbed audio information in multiple languages should be prepared and combined with the corresponding audio information when supplying so that the dubbing will be in the requested language Is also conceivable. Furthermore, not only the combination of video and audio, but also the synthesis of video and video or audio and audio can be considered.
[0023]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, some embodiments embodying the information supply device of the present invention will be described with reference to the drawings. [First embodiment]
FIG. 1 is a block diagram illustrating a schematic configuration of a server system including the information supply device 28a according to the first embodiment. The information supply device 28a of the first embodiment is for supplying audio / video information to the terminal device 36 via the transmission line 7 constituted by a coaxial cable or the like, and the information to be supplied is encoded. The data can be inputted from the outside via the device 27a and can be stored internally. Note that the number of the terminal devices 36 connected via the transmission path 7 is not limited to one, but may be plural. Normally, many terminal devices 36 are connected to one information supply device 28a. In addition, any type of transmission path 7 can be considered regardless of whether it is wired or wireless.
[0024]
The information supply device 28a includes a first input interface 29, a second input interface 30, an input / output control unit 31, a first auxiliary storage device control unit 32a, and a second auxiliary storage device control unit 32b. , A modem 35, a video buffer memory 37, and an audio buffer memory 38, which are connected by a bus 39.
[0025]
The first input interface 29 is for inputting a video signal converted into a digital data string by the video encoder 1 of the encoding device 27a. Similarly, the second input interface 30 is connected to the audio signal of the encoding device 27a. This is for inputting an audio signal converted into a digital data string by the encoder 2.
[0026]
Also, the first auxiliary storage device control unit 32a and the second auxiliary storage device control unit 32b are controlled by the input / output control unit 31, and each of the first auxiliary storage device as a "first storage unit". Data can be written to and read from the second auxiliary storage device 11b as a second storage device 11a. The first auxiliary storage device 11a stores a video signal converted into a digital data string input via the first input interface 29, and the second auxiliary storage device 11b stores the second input interface 30. An audio signal that has been converted into a digital data string and input through the memory is stored.
[0027]
The modem 35 is connected to a head amplifier 34, and can receive a reproduction request transmitted from the terminal device 36 via the transmission path 7 from the head amplifier 34.
On the other hand, the video buffer memory 37 and the audio buffer memory 38 are connected to a video packetizer 5 and an audio packetizer 6 as “packetizing means”, respectively. The video packetizer 5 is for converting a video signal converted into a digital data string input from the first auxiliary storage device 11a via the first auxiliary storage device control unit 32a and the video buffer memory 37 into a packet sequence. It is. Similarly, the audio packetizer 6 packetizes the digital data streamed audio signal input from the second auxiliary storage device 11b via the second auxiliary storage device control unit 32b and the audio buffer memory 38. It is for.
[0028]
The outputs from these two packetizers 5 and 6 are configured to be input to a multiplexer 9 as "information synthesizing means". The multiplexer 9 converts the input two packet sequences into one packet sequence and outputs the packet sequence to the output interface 33. The output interface 33 is connected to the head amplifier 34, and can transmit the unified packet sequence to the transmission path 7 via the head amplifier 34.
[0029]
Next, the configuration of the terminal device 36 will be described with reference to FIG.
The terminal device 36 includes a control unit 41 for performing overall control, an input device 43, an amplifier 47, a speaker 49, a monitor television 53, a terminal modem 57 for receiving and processing signals from the information supply device 28a, a system decoder 58, and a video. A decoder 59 and an audio decoder 60 are provided.
[0030]
The control unit 41 includes a CPU 61, a ROM 63, a RAM 65, and the like, and is connected to an input device 43, an input / output interface (I / O) 69, and the like via a bus line 67.
The input device 43 includes various key switches for the user to operate the terminal, a numeric keypad 43a for inputting a song number of a requested song, a mode key 43b for selecting various operation modes, and power on / off. And a power switch 43c for performing the operation.
[0031]
On the other hand, the system decoder 58 functions as a demultiplexer that separates a packet sequence transmitted via the transmission path 7 into a video packet sequence and an audio packet sequence, and converts each packet sequence into digital data to form a digital data sequence. It has a function of converting the video signal into a converted video signal and an audio signal as a digital data stream.
[0032]
The video decoder 59 is configured to convert the video signal converted from the digital data string input from the system decoder 58 into an analog signal and output the analog signal to the monitor television 53. Similarly, the audio decoder 60 is configured to convert an audio signal converted into a digital data string input from the system decoder 58 into an analog signal and output the analog signal to the amplifier 47. For example, when enjoying karaoke, a microphone may be connected to the amplifier 47, a singing voice signal may be input, mixed with the audio signal, and output to the speaker 49.
[0033]
The terminal modem 57 is connected to the input / output interface (I / O) 69 so that a reproduction request can be transmitted to the information supply device 28a via the transmission line 7.
In FIG. 2, the terminal device 36 has been described to include the amplifier 47, the speaker 49, and the monitor television 53. However, the function of outputting an audio signal or a video signal to an external amplifier / speaker unit or a monitor television unit is described. If the terminal device 36 is provided, the function as the terminal device 36 can be achieved. For example, the terminal device 36 can be used by connecting to a normal television system.
[0034]
Next, a description will be given of a data flow when information from the outside is recorded in the information supply device 28a having the above-described configuration.
The video signal and the audio signal are input using the encoding device 27a. The encoding device 27a may be integrated with the information supply device 28a, or may be separately provided and attached to the information supply device 28a when recording information. May be used. In the case of karaoke, this video signal is for background video, and the audio signal is for music performance.
[0035]
The video signal V1 is input to the video encoder 1 of the encoding device 27a and converted into a digital data string V2, and then input to the first input interface 29 of the information supply device 28a. On the other hand, the audio signal A1 is input to the audio encoder 2, converted into a digital data string A2, and then input to the second input interface 30.
[0036]
The video signal V2 input via the first input interface 29 is recorded on the first auxiliary storage device 11a via the first auxiliary storage device control unit 32a. On the other hand, the audio signal A2 input via the second interface 30 is recorded on the second auxiliary storage device 11b via the second auxiliary storage device control unit 32b. In this way, the video signal V2 converted into a digital data stream is stored in the first auxiliary storage device 11a, and the audio signal A2 converted into a digital data stream is stored in the second auxiliary storage device 11b. It becomes.
[0037]
Subsequently, a data flow when information is supplied from the information supply device 28a to the terminal device 36 will be described.
When a reproduction request is issued from the terminal device 36 connected to the information supply device 28a via the transmission path 7, the reproduction request is transmitted to the input / output control unit 31 through the head amplifier 34 and the modem 35. The input / output control unit 31 controls the first and second auxiliary storage device control units 32a and 32b to transmit information corresponding to the reproduction request, that is, the video signal V2 and the audio signal A2, which are converted into digital data, respectively. The data is read from the first and second auxiliary storage devices 11a and 11b and output to the video buffer memory 37 and the audio buffer memory 38, respectively. For example, when a request number of a desired karaoke song is input through the input device 43 of the terminal device 36, a request for reproducing the song of the request number is transmitted to the information supply device 28a, and the video signal V2 and the video signal V2 corresponding to the requested song are transmitted. The audio signal A2 is read.
[0038]
The video signal V2 and the audio signal A2 once stored in the video buffer memory 37 and the audio buffer memory 38, respectively, are sent to the video packetizer 5 and the audio packetizer 6, respectively, and are converted into the video packet sequence V3 and the audio packet sequence A3, respectively. Is done. Then, after being combined into one new packet data sequence VA by the multiplexer 9, the packet data sequence is transmitted to the terminal device 36 that has requested the reproduction via the output interface 33 and the head amplifier 34.
[0039]
In this way, desired information is supplied to the terminal device 36, and the terminal device 36 decodes the packet data sequence VA and uses it for predetermined processing. More specifically, the system decoder 58 separates the packet data sequence VA into a video packet sequence and an audio packet sequence, further digitizes each packet sequence, and converts the video signal V2 into a digital data sequence and the audio signal into a digital data sequence. Convert to signal A2. Then, the video signal V2 converted into the digital data string is converted into an analog video signal V1 by the video decoder 59 and displayed on the monitor television 53. On the other hand, the audio signal A2 converted into a digital data string is converted into an analog audio signal A1 by the audio decoder 60 and output from the speaker 49 via the amplifier 47. For example, when used as a karaoke terminal, the background video is displayed on the monitor television 53, and the karaoke accompaniment sound is output from the speaker 49.
[0040]
The information supply device 28a according to the first embodiment having the above configuration supplies external output information (for example, background video and music information for karaoke) to the terminal device 36 side. Is composed of a combination of a plurality of types of information such as video and audio, and at least one of the constituent elements can be used as a plurality of pieces of external output information. Information. For example, when the video signal V2 stored in the first auxiliary storage device 11a is background image information for karaoke, and the audio signal A2 stored in the second auxiliary storage device 11b is music information for karaoke performance. , Set a predetermined number of background videos based on the genre of the karaoke song, etc., and use the background video according to the genre of the requested song, etc., to duplicate the same background video for multiple songs. Can be used.
[0041]
The external output information is not stored in a completed state, but the first auxiliary storage device 11a stores the digital signalized video signal V2 which is the first information that can be used repeatedly. The second auxiliary storage device 11b stores an audio signal A2 converted into digital data. Then, at the time of supplying information, the video signal V2 and the audio signal A2 are read out, formed into a packet sequence, combined, and supplied to the terminal device 36 as one packet data sequence VA.
[0042]
Thus, for example, in the case of karaoke, the same background image can be used for a plurality of songs, so that the background image is sufficiently matched with the song, but compared to the case where the background image is set for each song, The total amount of prepared video information can be dramatically reduced.
[0043]
This point will be further described with reference to FIGS. Here, description will be made on the assumption that one video signal v is commonly used for three audio signals a, b, and c.
As shown in FIG. 3A, the video signal v is converted into a digital data string V by the video encoder 1 and stored in the first auxiliary storage device 11a. Then, it is read out at the time of supply to the terminal device 36, packetized by the video packetizer 5, becomes V1 to V6, and output to the multiplexer 9. On the other hand, as shown in FIG. 3B, the audio signal a is converted into a digital data string A by the audio encoder 2 and stored in the second auxiliary storage device 11a. Then, it is read out when supplied to the terminal device 36 and packetized by the audio packetizer 6 to become A1 to A3 and output to the multiplexer 9.
[0044]
V1, V2, V3 and A1, A2, A3 used in FIGS. 3 (A), 3 (B) or FIG. 4 described later are symbols attached to distinguish each packet when packetized. The meaning is different from V1, V2, V3 and A1, A2, A3 shown in FIG. In the case of FIG. 1, V 1, V 2, V 3 and A 1, A 2, A 3 are used to indicate the states of analog signals, digital data, and packets, respectively. In the case of (1), each packet when divided into a plurality of packets is to be distinguished for convenience.
[0045]
As shown in FIGS. 3C and 3D, the same applies to the case of audio signals b and c. The audio data is converted into digital data strings B and C by the audio encoder 2 and stored in the second auxiliary storage device 11b. . Then, it is read out when supplied to the terminal device 36, packetized by the audio packetizer 6, becomes B1 to B3, C1 to C3, and output to the multiplexer 9.
[0046]
Then, when the audio signal a is synthesized by the multiplexer 9, it becomes a single packet data sequence as shown in FIG. 4A in the case of the audio signal a. 4), and in the case of an audio signal c, a single packet data sequence as shown in FIG. 4C, which is transmitted to the terminal device 36 side in this state. It becomes.
[0047]
Here, in the case of the first embodiment, the digital data strings V, A, B, and C shown in FIG. 3 are stored in the first and second auxiliary storage devices 11a and 11b. On the other hand, when the audio and video signals are stored in a state of being combined in advance as in the related art, the data is stored in the state of one data string shown in FIG. That is, although the packetized V1 to V6 in FIGS. 4A to 4C are overlapping data, the synthesized audio signals a, b, and c are different from each other. It is stored in a set state.
[0048]
Therefore, in the case of the first embodiment, the storage amount can be reduced by the amount that the video signals do not overlap, and the storage capacity of the auxiliary storage devices 11a and 11b can be reduced.
For example, consider an example of karaoke. If the genre of karaoke songs is divided into two categories, enka and pop, 100 background songs and 200 songs in total are provided for each, and the same background video is used repeatedly for a plurality of songs. It is only 1/50 as compared to preparing songs. As described above, especially for the background video of karaoke, since one video can be used repeatedly for a plurality of songs, the background video and music information are not stored in advance as a set for each song, but are individually stored. It is preferable that the data is stored for the first time when the data is supplied to the information output side so that the data is synthesized and completed.
[0049]
When considered as a karaoke terminal, there is no need to add a hard disk or the like for storing music information of karaoke songs on the terminal side unlike in the past, so the infrastructure has been developed as a video server system or multimedia server system. Even when the karaoke function is added in the state where the karaoke operation is performed, the set-top box (STB) used as the terminal side can be used as it is, and the addition of a hard disk or the like is unnecessary as described above.
[Second embodiment]
Next, a second embodiment will be described.
[0050]
The information supply device 28a of the first embodiment stores the video signal and the audio signal in a state of being converted into a digital data string in the first embodiment through the transmission path 7. In the embodiment, the data is further stored in a state converted into a packet sequence. FIG. 5 is a block diagram illustrating a schematic configuration of a server system including the information supply device 28b according to the second embodiment. Blocks having the same configuration as in the first embodiment are denoted by the same reference numerals, and detailed description is omitted. The configuration of the terminal device 36 is the same as that shown in FIG.
[0051]
The information supply device 28b of the second embodiment does not include the video packetizer 5 and the audio packetizer 6 unlike the first embodiment. Instead, the encoding device 27b also provided in the first embodiment includes a video packetizer 5 and an audio packetizer 6 in addition to the video encoder 1 and the audio encoder 2.
[0052]
Therefore, the video signal V1 and the audio signal A1 are converted into digital data streams V2 and A2 by the video encoder 1 and the audio encoder 2, respectively, and further, the video packet stream V3 and the audio packetizer 6 are further converted by the video packetizer 5 and the audio packetizer 6, respectively. After being converted into the audio packet sequence A3, it is input to the input interfaces 29 and 30, respectively. Therefore, the first auxiliary storage device 11a stores the video packet sequence V3, and the second auxiliary storage device 11b stores the audio packet sequence A3.
[0053]
In this case, information corresponding to the reproduction request, that is, the video packet sequence V3 and the audio packet sequence A3 are read from the first and second auxiliary storage devices 11a and 11b, respectively, and the video buffer memory 37 and the audio buffer memory 38 are read. Are temporarily stored in each of them. Then, the data is directly input to the multiplexer 9 and synthesized into one new packet data sequence VA, and then transmitted to the terminal device 36 that has requested the reproduction via the output interface 33 and the head amplifier 34. [Third embodiment]
Next, a third embodiment will be described.
[0054]
FIG. 6 is a block diagram illustrating a schematic configuration of a server system including the information supply device 28c according to the third embodiment. The information supply device 28c of the third embodiment has the same configuration as that of the second embodiment, except that only one auxiliary storage device 11c and one auxiliary storage device control unit 32c are provided. . In this case, the auxiliary storage device 11c has a video signal record area and an audio signal record area in the same device. Therefore, the auxiliary storage device control unit 32c controls to record or read the video packet sequence V3 and the audio packet sequence A3 in each record area.
[0055]
As described above, the present invention is not limited to such embodiments at all, and can be implemented in various modes without departing from the gist of the present invention. For example, in the above embodiment, the case where karaoke information is supplied has been mainly described, but the present invention is not limited to this. As described above, for example, a plurality of types of information such as video and audio are configured as a pair, and at least one of the constituent information is the same information for a plurality of external output. The same effect can be obtained if the information is external output information that can be used overlapping with the information. For example, even in the case of a movie, besides the original, dubbed audio information in multiple languages should be prepared and combined with the corresponding audio information when supplying so that the dubbing will be in the requested language Is also conceivable. Furthermore, not only the combination of video and audio, but also the synthesis of video and video or audio and audio can be considered.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a schematic configuration of a server system including an information supply device according to a first embodiment.
FIG. 2 is a block diagram illustrating a schematic configuration of a terminal device according to the first embodiment.
FIG. 3 is a conceptual explanatory diagram of a video signal and an audio signal recorded and supplied by the information supply device of the first embodiment.
FIG. 4 is a conceptual explanatory diagram of a packet data string synthesized by a multiplexer of the information supply device of the first embodiment.
FIG. 5 is a block diagram illustrating a schematic configuration of a server system including an information supply device according to a second embodiment.
FIG. 6 is a block diagram illustrating a schematic configuration of a server system including an information supply device according to a third embodiment.
FIG. 7 is a block diagram showing a schematic configuration of a conventional video server.
[Explanation of symbols]
1. Video encoder 2. Audio encoder
5 ... Video packetizer 6 ... Audio packetizer
7: Transmission line 9: Multiplexer
11a: first auxiliary storage device 11b: second auxiliary storage device
11c: auxiliary storage device 27a, 27b: encoding device
28a, 28b, 28c ... information supply device
29: first input interface 30: second input interface
31 ... Input / output control unit
32a... First auxiliary storage device control unit
32b ... second auxiliary storage device control unit
32c: auxiliary storage device control unit 33: output interface
34 ... Head amplifier 35 ... Modem
36 terminal device 37 video buffer memory
38: audio buffer memory 39: bus
41 ... Control unit 47 ... Amplifier
49… Speaker 53… Monitor TV
58: System decoder 59: Video decoder
60 ... Audio decoder

Claims (5)

An information supply device for supplying information for external output via a transmission path to an information output side that performs external output,
When the external output information is composed of a combination of a plurality of types of information, and when at least one of the constituent information can be used in combination with a plurality of external output information, the information can be used repeatedly. First storage means for storing important first information;
Second storage means for storing second information that is a component other than the first information;
When there is a request from the information output side, the first information read from the first storage means and the first information read from the second storage means, which is combined with the first information. And information combining means for combining the two pieces of information into one digital data string to complete the external output information. The information combining means completes the external output information in a state where the information is combined and completed. An information supply device characterized by supplying. The information supply device according to claim 1,
The first and second storage means store the first and second information in the form of digital data strings, respectively.
The information synthesizing means includes packetizing means for packetizing the first and second information read from the first and second storage means, respectively. An information supply device configured to complete as external output information in the form of a digital data string of a book. The information supply device according to claim 1,
The first and second storage means store the first and second information in the form of packetized digital data strings, respectively.
The information synthesizing means is configured to synthesize the first and second information read from the first and second storage means and complete the digital output as one piece of digital data string for external output. An information supply device characterized by the above-mentioned. The information supply device according to claim 1, 2, or 3,
The information supply device according to claim 1, wherein the first information is video information, and the second information is music information. The information supply device according to claim 4,
The information supply device according to claim 1, wherein the first information is background video information, and the second information is music information for karaoke performance.

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