JP3430845B2 - Multimedia transmission equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multimedia transmission device for media transmission with a frame structure in which video, audio and data are multiplexed.

[0002]

2. Description of the Related Art FIG. 15 is a block diagram showing a bus structure in a conventional multimedia transmission apparatus. In the figure, 2 is a video processing unit, 3 is an audio processing unit, 4 is a data processing unit, 5 is a media multiplexing unit, 13 is a media separation unit, 41.
Is a media bus for video, 41a is a received video media, 4
1b is a transmission video medium, 42 is an audio media bus,
42a is a reception audio medium, 42b is a transmission audio medium, 43 is a data media bus, 43a is a reception data medium, 43b is a transmission data medium, 111 is a transmission multiplex frame, and 112 is a reception multiplex frame.

The received multiplexed frame 112 received is analyzed by the media separation unit 13 inside the multiplexed frame 112 to be separated into a video medium, an audio medium or a data medium constituting the multiplexed frame, and passed through different media buses. And transmits it to each media related processing unit. The video processing unit 2 is notified of the video media via the video media bus 41, the audio processing unit 3 is notified of the audio media via the audio media bus 42, and the data media bus is notified of the data media. The data processing unit 5 is notified via 43. Then, the media data processed by each of the media-related processing units 2 to 4 is taken into the media multiplexing unit 5 via the video media bus 41, the audio media bus 42, and the data media bus 43, respectively, and subjected to multiplexing processing. The transmission multiplex frame 111 is generated and transmitted.

Further, as a conventional technique, for example, Japanese Patent Laid-Open No. Hei 8
References include those disclosed in Japanese Patent Laid-Open No. 163073 and Japanese Patent Application Laid-Open No. 57-58428, but none of them are intended for multiplexing multimedia.

[0005]

The conventional multimedia transmission apparatus is configured as described above, and the media bus for audio and the media for audio are respectively set for each type of media forming multiple frames of video, audio, data, etc. Since the media data is transmitted on different media buses such as a bus and a media bus for data, if the number of types of media to be handled increases, the circuit scale becomes large and the device becomes large. Furthermore, in order to handle the media data separately for each media and store it, either multiplex each media, or
Alternatively, it is necessary to perform processing such as adding some kind of synchronization information, and to use the stored media data, a separation function is required, which makes it difficult to handle the storage medium. The present invention has been made to solve the above problems, and an object of the present invention is to provide a multimedia transmission device that can be easily handled by a storage medium and has a reduced size.

[0006]

Means for Solving the Problems] multimedia transmitter according to the present invention, video, audio, and data media Day
In a multimedia transmission device that transmits a multiplexed frame in which data is multiplexed,
A media bus for transmitting the media data in a multi-frame format has a number of time slots, a video processing unit for outputting video media input from the video input device to the media bus in the form of the multiplex frame, the speech input device a sound processing section to be output to the media bus audio media in the form of the multiple frame input from the data processing unit to be output to the media bus data media input from the data input device in the form of the multiplex frame ,
Select different types of media data in the form of the multiplex frame from the media bus different time slots
A media multiplexing unit that takes in and multiplexes the captured data, a transmission unit that transmits the multiplexed frame that is multiplexed and generated by the media multiplexing unit to the outside, and a control unit that integrally controls the processing units described above .

[0007] In addition, the video, audio, of data Media Day
In a multimedia transmission device that transmits a multiplexed frame in which data is multiplexed,
Wherein the media bus for transmitting media data multiplex frame format has a number of time slots, a receiver for receiving the multiplexed frame from the external from the transmission path, analyzing the multiplex frame in the form of the multiplex frame The media analysis unit that outputs to the media bus differs from the media bus
Different from the time slot depending on the format of the multiplex frame
A media multiplexing unit for multiplexing uptake select the type of media data, the transmission unit and the video media input from the video input device of the multiple frame format for transmitting a multiplex frame of the media multiplexing unit is multiplexed generated externally , oR output to the media bus, the image processor to be output to the video output device takes in video media from the media bus, the media bus audio media input from the voice input device in the form of the <br/> multiplex frame whether to output to the a voice processing unit for outputting to the audio output device captures audio media from the media bus, captures data media from the media bus, the de <br/> Tamedia input from the data input device A data processing unit for outputting to the media bus in the form of multiple frames or outputting to a data input / output device; And a control unit for integrally controlling each of the processing units.

The media bus is connected from the transmission line side.
To the media-related processing section such as video, audio or data
Receiving system bus and media related processing unit side to transmission line side
It has an independent transmission system bus,
Multiple frames or multiplex generated by media related processing unit
Separate slots for frames according to transmission direction
It is a hit .

[0009] In addition, a plurality of media devices may be connected to the media bus.
When loading the data, the
A pre-processing unit for dynamically selecting and extracting a designated area is provided .

A storage device for storing and reproducing multiple frames is also provided.
And multiple frames from the media bus to the storage device
Store or fetch multiple frames from storage device
And a storage processing unit for outputting to a media bus .

Further, there is provided a storage processing unit for returning to the media bus the multiplex frames generated by the media multiplex unit and storing the transmission multiplex frames.

[0012]

[0013]

[0014]

[0015]

DETAILED DESCRIPTION OF THE INVENTION

Embodiment 1. 1 is a block diagram showing a first embodiment of a multimedia transmission apparatus to which the present invention is applied.
In the figure, reference numeral 1 denotes a main body of a multimedia transmission apparatus including respective processing units for multiplex transmission of various media data,
Reference numeral 2a is a video processing unit for processing video media, 3a is an audio processing unit for processing audio media, 4a is a data processing unit for processing data media, 5 is a media multiplexing unit for generating multiplexed frames to be finally transmitted, 6 Is a transmission unit that outputs the generated multiplex frame to the outside, 9 is a control unit that controls each processing unit in this multimedia transmission apparatus, and 10 is a multiplex frame of a format in which media data is common between the processing units. Media bus for transmission in the form, 14 is a transmission line, 2
Reference numeral 1 is a video input device such as a camera, 22 is a voice input device such as a microphone, 23 is a data input device, and 31 is a reception external device for receiving multiple frames. FIG. 2 is a diagram showing details of the media bus 10 in the multimedia transmission apparatus, and the multiplexing pattern shows an example. In the figure, 110 is a media bus 10 having a time slot.
The n-th slot multiplex frame 110a in the above is audio media in the n-th slot multiplex frame 110, 1
10b is a video medium in the n-th slot multiplexed frame 110, and 110c is an n-slot multiplexed frame 11
0 is a data medium, 111 is a transmission multiplex frame to be transmitted by the transmission unit 6, 111a is an audio medium in the transmission multiplex frame 111, 111b is a video medium in the transmission multiplex frame 111, and 111c is a transmission multiplex. It is a data medium in the frame 111.

In the first embodiment of the present invention, a medium taken in by an input device corresponding to each medium is subjected to appropriate processing and encoded, and all media data have a common frame format which is a common format. Then, via the media bus 10, the media multiplexer 5 selectively extracts the required media data from the media bus 10 and multiplexes it into a format of a transmission multiplex frame 111 to be finally transmitted. If necessary, control information is multiplexed on the transmission multiplex frame 111 and output from the transmission unit 6 to the transmission path 14. Here, if a plurality of media multiplexing units 5 and transmission units 6 are provided, it is possible to simultaneously generate and transmit multiplex frames 111 having different multiplexing patterns. Compared with the conventional one, the type of media bus between the video processing unit 2a, the audio processing unit 3a, the data processing unit 4a and the media multiplexing unit 5 is made common to one type, which is easy even when the number of media to be handled increases. The effect of being able to cope with is produced.

Embodiment 2. 3 is a block diagram showing a second embodiment of a multimedia transmission apparatus to which the present invention is applied, and is provided in addition to the block diagram of FIG. In the figure, 2b is a video processing unit for processing video media,
3b is an audio processing unit for processing audio media, 4b is a data processing unit for processing data media, 7 is a media analysis unit for analyzing received multiplex frames, 8 is a receiving unit for receiving multiplex frames from the outside, and 9 is control Section, 10 is a media bus, 14 is a transmission line, 23 is a data input / output device, 24
Is a video output device such as a monitor, 25 is an audio output device such as a speaker, and 32 is a transmission external device for transmitting multiple frames. FIG. 4 is a diagram showing details of the media bus 10 in the multimedia transmission apparatus, and the multiplexing pattern shows an example. In the figure, 112 is a reception multiplex frame that has been subjected to reception processing by the receiving unit 8, 112a is audio media within the reception multiplex frame 112, 112b is video media within the reception multiplex frame 112, and 112c is within the reception multiplex frame 112. Is a data medium in.

In the second embodiment of the present invention, the reception multiplex frame 112 input from the transmission line 14 by the receiving unit 8 is used.
On the other hand, the media analysis unit 7 analyzes the frame structure by referring to the control information and the like in the multiplex frame, and outputs the received multiplex frame 112 received based on the instruction of the control unit 9 to the media bus 10 in the same format. Each medium is loaded into each processing unit via the media bus 10, decoded, subjected to appropriate processing, and output to an output device corresponding to each medium. Here, a plurality of media analysis units 7 and reception units 8
With the above, it is possible to simultaneously receive and analyze the received multiplex frames 112 having different multiplex patterns, and realize more complicated functions in each processing unit for media.
In addition to the effect of the first embodiment as compared with the conventional one, since the received reception multiplex frame 112 is output to the media bus 10 as it is, it is necessary to separate each media and output them to different media buses. The effect of suppressing the circuit scale of the media analysis unit is obtained.

Embodiment 3. FIG. 5 is a block diagram showing a third embodiment of a multimedia transmission apparatus to which the present invention is applied. In the figure, 2c is a video processing unit for processing video media, 3c is an audio processing unit for processing audio media, 4c is a data processing unit for processing data media, 5
Is a media multiplexing unit, 6 is a transmission unit, 7 is a media analysis unit,
8 is a receiving unit, 9 is a control unit, 10 is a media bus, 11 is a transmission line I / F unit including the transmitting unit 6 and the receiving unit 8, and 14
Is a transmission line, and 33 is an external device that transmits and receives multiple frames. FIG. 6 is a diagram showing details of the media bus 10 in the multimedia transmission apparatus, and the multiplexing pattern shows an example. FIG. 7 is a diagram showing a simple distribution mode in which the video media is transmitted again to the video media received from the outside without being processed. FIG. 8 is a diagram showing a media processing mode for transmitting the result of processing by the video processing unit 2c to a video medium received from the outside regarding the video medium.

In the third embodiment of the present invention, the reception multiplex frame 112 input from the transmission line 14 by the receiving unit 8 is used.
The media analysis unit 7 analyzes the frame structure by referring to the control information and the like in the multiplex frame, and outputs the received multiplex frame 112 received in accordance with the instruction of the control unit 9 to the media bus 10 in the same format. Each medium is loaded into each processing unit via the media bus 10, decoded, subjected to appropriate processing, and output to an output device corresponding to each medium. At the same time, with respect to the media imported by the input device corresponding to each media or each media imported from the media bus 10, image composition is performed for video media, voice addition is performed for voice media, or data media is used. Encoding is performed by performing appropriate processing such as service processing of various applications, and any media data is passed through the media bus 10 in the format of multiple frames, which is a common format, and the media data required by the media multiplexing unit 5 is transferred to the media. The signals are selectively extracted from the bus 10 and multiplexed into a transmission multiplex frame 111 to be finally transmitted. If necessary, control information is multiplexed in the transmission multiplex frame 111,
Output from the transmission unit 6 to the transmission line 14.

Here, if a plurality of media multiplexers 5, transmitters 6, media analyzers 7 and receivers 8 are provided, reception multiplex frames 112 of different multiplex patterns are simultaneously received and analyzed, and each processing unit for media is processed. It is also possible to implement more complex functions in. In FIG.
If the m-th media analysis unit 7a simultaneously receives the reception multiplexed frame 112 input to the media bus 10 by the i-th media multiplexing unit 5a and the j-th media multiplexing unit 5b and multiplexes it, a certain external device 33a transmits it. A simple distribution mode service of distributing media data to another external device 33b can be provided. The transmission media can be switched by a simple method in which the media data extracted by the media multiplexers 5a and 5b is switched to the multiplexed frame 112 input to the media bus 10 by the n-th media analyzer 7b.

Further, as shown in FIG. 8, in the case of video media, the video processing unit 2c performs processing such as image composition on the multiplex frames 110 input to the media bus 10 by the plurality of media analysis units 7 and again. Return to the media bus 10,
It is possible to provide a service in a media processing mode in which video media to which some additional processing has been performed is distributed by being taken out by the media multiplexing unit 5. The same applies to voice media and data media. The multiplex frame extracted from the media bus 10 can be selected independently for each medium, so that the mode can be selected according to the application. Compared with the conventional one, in addition to the effects of the first and second embodiments, by appropriately selecting and extracting the transmission multiplex frame 111 which is the transmission media data from the media bus 10, it is possible to perform communication at multiple points for each medium. The effect that various service functions can be realized with a simple circuit is achieved.

Fourth Embodiment 9, 10, and 11 are
FIG. 9 is a block diagram showing a fourth embodiment of a multimedia transmission device when the present invention is applied to the first, second and third embodiments, respectively. In the figure, 1
2 is a storage processing unit for controlling storage / reproduction of multiple frames, 2
Reference numeral 6 is a storage device for storing storage media in the form of multiple frames. Other configurations are the same as those in the first, second, and third embodiments.
Therefore, they are designated by the same reference numerals.

In the embodiment of the present invention, when applied to the first embodiment, as shown in FIG.
The storage processing unit 12 stores the media data stored in advance in the multiple frame format in the control unit 9 by some means.
In response to the instruction, the media multiplexing unit 5 takes out via the media bus 10 as a transmission medium, instead of the video input device 21, the audio input device 22 or the data input device 23, and multiplexes it. Then, the multiplexed frame generated by the media multiplexing unit 5 is transmitted from the transmission unit 6 to the transmission path 14
Output to. The multiplex frame extracted from the media bus 10 can be independently selected for each medium, and the accumulated media data or the media data generated by each media-related processing unit can be appropriately selected and multiplexed.

When applied to the second embodiment, FIG.
As shown in 0, the accumulation processing unit 12 stores the multiplex frame transmitted by the transmission external device 32 in the multiplex frame format in the accumulation device 26 based on the instruction of the control unit 9 via the media bus 10, and receives the multiplex frame. Media data can be recorded. Then, the storage processing unit 12 causes the control unit 9 to store the media data stored in the storage device 26 in the multiplex frame format.
Based on the instruction, the received media data that has been recorded can be reproduced by decoding it by the media-related processing unit via the media bus 10 and outputting it to the output device for each media.

When applied to the third embodiment, FIG.
As shown in FIG. 1, the accumulation processing unit 12 stores the multiplex frame transmitted by the external device 33 in the multiplex frame format in the accumulation device (not shown) based on the instruction of the control unit 9 via the media bus 10. , Receive media data can be recorded. The storage processing unit 12 takes in the media data registered by some means based on an instruction from the control unit 9 or the received media data received from the external device 33 and stored, and transmits it as transmission media data via the media bus 10. Instead of the received media data currently being received from the external device 33, the media multiplexing unit 5 takes in and multiplexes it. Then, the multiplexed frame generated by the media multiplexing unit 5 is output from the transmission unit 6 to the transmission path 14.

The media data extracted by the storage processing unit 12 from the storage device (not shown) is transferred to the media bus 10.
If it is a video medium, it is taken into each media-related processing unit via the, and the stored media data and the received media data from the external device 33 are subjected to additional processing such as video synthesis to generate a video medium and re-produce the media. By returning to the bus 10 and being taken in by the media multiplexing unit 5, it is possible to transmit the video media to which some additional processing has been performed. Since the multiplex frame fetched from the media bus 10 can be independently selected for each medium, it is possible to appropriately select and multiplex the accumulated media data or the media data transmitted by the external device according to the application.

Embodiment 5. FIG. 12 is a diagram showing details of the media bus 10 in the multimedia transmission apparatus showing the fifth embodiment of the present invention, and the multiplexing pattern shows an example.

In the embodiment of the present invention, the media data from the media analysis unit 7 or each media-related processing unit is taken into the media multiplexing unit 5 via the media bus 10 and transmitted by the multiplexing process. The transmission multiplex frame 111 can be recorded by returning the multiplex frame 111 to the media bus 10 again and capturing and storing the multiplex frame by the accumulation processing unit 12.

Sixth Embodiment In the embodiment of the present invention, as shown in FIG. 6, the input of the received multiplex frame and the input of the multiplex frame for transmission generated by each media-related processing unit are input to the mediabus 10 on a common mediabus. Since it is possible to freely allocate slots without being limited to the purpose by transmitting in the above, the use status of the media bus 10 is defined as the slot for storing the multiplex frame for reception and the slot for storing the multiplex frame for transmission. Can be appropriately distributed according to.

Embodiment 7. FIG. 13 is a diagram showing details of the media bus 10 in the multimedia transmission apparatus showing the seventh embodiment of the present invention, and the multiplexing pattern shows an example. The same reference numerals in the drawings indicate the same or corresponding parts. In the figure, 10a is a transmission system bus in a transmission-only media bus 10 that stores multiplex frames for transmission generated by each media-related processing unit, and 10b is a reception-only media bus that stores multiplex frames received from an external device. It is a receiving bus in 10.

In the embodiment of the present invention, the input of the received multiplex frame is limited to the receiving system bus 10b, and the input of the multiplex frame for transmission generated by each media processing unit is limited to the transmitting system bus 10a. Then, the media multiplexing unit 5, the media analysis unit 7, the video processing unit 2c, and the audio processing unit 3
c, each processing unit such as the data processing unit 4c is the media bus 10
A reception system bus 10 into which a media multiplexer corresponding to an external terminal inputs a multiplexed frame when interfacing with
The transmission system bus 1 for inputting the multiplexed frame generated corresponding to the slot on b and the external terminal having each media processing unit
It is possible to make the slot numbers of the slots on 0a common and facilitate the slot allocation.

Embodiment 8. FIG. 14 shows the details of the interface between the media bus 10 and the media multiplexing unit 5 in the multimedia transmission apparatus showing the eighth embodiment of the present invention, and the multiplexing pattern shows an example. In the figure, reference numeral 15 designates a multiplexed frame 1 from the media bus 10.
A pre-processing unit for taking out 10 and extracting a required media data band, 16 for extracting a video media band in the pre-processing unit 15, and 17 for extracting an audio media band in the pre-processing unit 15. Is a voice media extraction unit, and 18 is a data media extraction unit in the preprocessing unit 15 that is in charge of extraction of the data media band. The same reference numerals in the drawings indicate the same or corresponding parts.

In the embodiment of the present invention, the media data is fetched from the designated slot of the media bus 10 in the form of a multiplex frame to be subjected to the multiplex processing, and the preprocessing section 15 converts it into a predetermined multiplex pattern. Based on this, only the media band to be finally multiplexed in the multiplex frame 111 to be transmitted is taken out, necessary media data is passed to the media multiplex section 5, and the media multiplex section 5 multiplexes it into the multiplex frame 111. Multiple frames 11 if needed
1 and the control information is multiplexed and output. Here, the preprocessing unit 1
In FIG. 5, a video media extraction unit 16 for video media and an audio media extraction unit 1 for audio media
7. Data media extraction unit 1 for data media
8 is provided with a media extraction unit that automatically extracts a specified band for each media to be handled, and thus multiple processing can be performed in parallel and the multiple processing in the media multiplex unit 5 can be efficiently performed. .

Ninth Embodiment In the embodiment of the present invention, the reception multiplex frame 112, the transmission multiplex frame 111 and the multiplex frame 11 on the media bus in FIG.
0 to ITU-T Recommendation H.0. H.221 is applied to apply the media multiplex frame format. 221
Performs media multiplex processing or media analysis processing in the form of multiplex frames. As a result, H.264. It is possible to easily connect to an external terminal conforming to 221.

[0036]

Since the present invention is constructed as described above, it has the following effects.

Media data is transmitted between each processing unit corresponding to media such as a video processing unit, an audio processing unit, or a data processing unit and the media multiplexing unit by a common bus of a media bus which is a common frame. 1
Since the data is unified into one type and transmitted, it is not necessary to provide a plurality of types of buses, the circuit scale can be suppressed, and the effect of easily dealing with an increase in the number of media to be handled is achieved.

Further, since the receiving unit receives the multiplex frame transmitted by the external device and transmits the multiplex frame as it is to each processing unit corresponding to the media via the media bus, each medium is analyzed by the media analyzing unit. It is not necessary to separate each, and it is possible to suppress the circuit scale of the media analysis unit.

Further, media data between each media-compatible processing unit such as a video processing unit, an audio processing unit, or a data processing unit and the media multiplexing unit is shared by a multi-frame format which is a common format. The simple distribution service or the received media in which the received media is distributed as it is by using the same format as the multiplex frame as it is It is possible to realize a media processing service or the like in which a certain additional function is added to distribute to a small-scale circuit.

Further, since the processing units are transmitted in a multi-frame format which is a common format, the storage device is provided in the transmission device so that the received media data can be recorded / reproduced by a simple circuit. , It is possible to use the storage media data prepared separately.

Further, since each processing unit is transmitted in the multiplex frame format which is a common format, the multiplex frame generated by performing the multiplex processing in the media multiplex unit is provided with a function of returning to the media bus. The effect that the processing unit can realize the function of recording / reproducing the transmission multiplex frame with a simple circuit is achieved.

[0042]

Further, by limiting the received multiplex frame to the receiving system bus and transmitting the input of the multiplex frame for transmission generated by each media processing unit to the transmitting system bus and transmitting it on an independent media bus, Slots on the receiving bus into which the media multiplexer corresponding to an external terminal inputs multiplex frames, and slots on the transmitting bus into which multiple media generated by each media processor corresponding to an external terminal is input Since the numbers can be made common, there is an effect that slot allocation can be easily performed.

Also, for media data in the multi-frame format extracted from the media bus for multi-processing,
By providing each media with a pre-processing unit that extracts only a required media band based on a preset multiplex pattern, it is possible to efficiently perform parallel processing in the media multiplex unit in parallel.

[0045]

[Brief description of drawings]

FIG. 1 is a block diagram of a multimedia transmission device showing a first embodiment of the present invention.

FIG. 2 is a detailed diagram of a media bus in the multimedia transmission device according to the first embodiment of the present invention.

FIG. 3 is a block diagram of a multimedia transmission device showing a second embodiment of the present invention.

FIG. 4 is a detailed diagram of a media bus in the multimedia transmission device according to the second embodiment of the present invention.

FIG. 5 is a block diagram of a multimedia transmission device showing an embodiment 3 of the invention.

FIG. 6 is a detailed diagram of a media bus in a multimedia transmission device according to a third embodiment of the present invention.

FIG. 7 is a diagram showing a simple distribution mode in which the video medium according to the third embodiment of the present invention is transmitted again to the video medium received from the outside without being processed.

FIG. 8 is a diagram showing a media processing mode for transmitting a result processed by a video processing unit to a video medium received from the outside according to the third embodiment of the present invention.

FIG. 9 is a block diagram of a multimedia transmission device showing an embodiment 4 of the invention.

FIG. 10 is another block diagram of the multimedia transmission device showing the fourth embodiment of the present invention.

FIG. 11 is another different block diagram of the multimedia transmission device showing the fourth embodiment of the present invention.

FIG. 12 is a detailed diagram of a media bus in a multimedia transmission device according to a fifth embodiment of the present invention.

FIG. 13 is a detailed diagram of a media bus in the multimedia transmission device showing the seventh embodiment of the present invention.

FIG. 14 is a detailed diagram of an interface between a media bus and a media multiplexing unit in the multimedia transmission device according to the eighth embodiment of the present invention.

FIG. 15 is a block diagram showing a bus configuration in a conventional multimedia transmission device.

[Explanation of symbols]

1 multimedia transmission device main body, 2 video processing unit, 3
Voice processing unit, 4 data processing unit, 5 media multiplexing unit, 6 transmitting unit, 7 media analyzing unit, 8 receiving unit, 9
Control unit, 10 media bus, 10a transmission system bus,
10b reception system bus, 11 transmission line I / F unit, 12 storage processing unit, 14 transmission line, 15 preprocessing unit, 16 video media extraction unit, 17 audio media extraction unit, 18 data media extraction unit, 21 video input device, 22 audio input device, 23 data input / output device, 24 video output device, 25 audio output device, 26 storage device, 31 receiving external device, 32 transmitting external device, 33 external device, 11
0 multiplex frame, 110a audio media, 110b
Video media, 110c data media, 111 transmission multiple frames, 112 reception multiple frames.

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Atsumi Murakami 2-3-3 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric Corporation (56) Reference JP-A-8-9058 (JP, A) JP-A 5-327641 (JP, A) JP 5-14545 (JP, A) JP 4-26535 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) H04J 3/00 H04L 12/00 H04L 29/00 H04N 7/00

Claims (6)

(57) [Claims] 1. A video, audio, the multimedia transmission apparatus for transmitting multiple frames media data of data was <br/> multiplexing, multiple <br/> time slots for accommodating the video, audio, data a media bus for transmitting the media data in a multi-frame format having a video processing unit for outputting video media input from the video input device to the media bus in the form of the multiple frames, is input from the voice input device a sound processing section to be output to the media bus audio media in the form of the multiplex frame, and a data processing unit for outputting the data media input from the data input device in the form of the multiplex frame to the media bus, the media bus retrieved from different time slots by selecting different types of media data in the form of the multiplex frame
A media multiplexing unit for interrupt multiplex, multimedia, characterized in that it includes a transmission unit for transmitting a multiplex frame of the media multiplexing unit is multiplexed generated outside, and a control portion for controlling the respective processing units of the Transmission equipment. 2. A video, audio, the multimedia transmission apparatus for transmitting multiple frames media data of data was <br/> multiplexing, multiple <br/> time slots for accommodating the video, audio, data a media bus for transmitting the media data in a multiplex frame format has output a receiving section that receives a multiplex frame from the external from the transmission line, in the form of the multiplex frame by analyzing the multiplex frame to the media bus Media analysis unit and the different media bus
Different types in the format of said multiple frames from Imslot
A media multiplexing unit for multiplexing uptake select the media data, the multiplex frame the media multiplexing unit is multiplexed generation and transmission unit for transmitting to the outside, a video media input from the video input device in the form of the multiplex frame whether to output to the media bus, the image processor to be output to the video output device takes in video media from the media bus, the media bus audio media input from the voice input device in the form of the multi <br/> heavy frame or output to an audio processing unit for outputting to the audio output device captures audio media from the media bus, captures data media from the media bus, the data <br/> data media input from the data input device whether to output to the media bus in the form of the multiplex frame, and a data processing unit for outputting to the data input-output device, said A multimedia transmission device, comprising: a control unit that integrally controls each processing unit. 3. The media bus is projected from the transmission line side.
To the media related processing unit side such as image, voice or data
From the receiving bus and the media related processing unit side to the transmission line side
It has an independent transmission system bus and multiplex received from an external device.
Multiple frames generated by the frame or media related processing unit
Slots for rams are assigned separately by transmission direction
The multimedia transmission device according to claim 2, wherein the multimedia transmission device is provided. 4. A plurality of media data from the media bus
Automatically according to the set multiple pattern when capturing
It has a pre-processing unit that selectively extracts specified areas
The multimedia according to any one of claims 1 to 3.
Deer transmission equipment. 5. A storage device for storing and reproducing multiple frames.
And multiplex frames from the media bus to the storage device.
Either store or fetch multiple frames from the storage device.
It has a storage processing unit that outputs to Diabus
The multimedia according to any one of claims 1 to 4.
Deer transmission equipment. 6. The storage processing unit according to claim 1 , further comprising a storage processing unit for returning the multiplex frames generated by the media multiplexing unit to the media bus and storing the transmission multiplex frames. The described multimedia transmission device.