JPH1198474A - Digital broadcast down-load system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain a down-load system that sends/receives detail information relating to down-load data in addition to receiver identification data to select data down-load data and to allow its receiver to simplify the down-loading and its processing by informing the information to a recipient. SOLUTION: The transmission system sends down-load data 17 to which individual data relating to the data 17 are added in addition to identification data 18 of the down-load data 17 such as a manufacturer/model/software version to a receiver. A reception system separates the individual data relating to the down-load data 17 from the down-load data 17 and identifies the individual data to acquire, the identification information for each receiver or acquires information relating to a down-load class.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a data download system for digital broadcasting.

[0002]

2. Description of the Related Art In a digital broadcast software download transmission / reception system, a receiver needs to recognize information for performing a download process. Therefore, on the transmission side, information on the manufacturer / model / software version is transmitted to each receiver as identification data corresponding to the download data of each receiver in a one-to-one correspondence with the download data.

[0003] In the transmission system, as shown in FIG. 1, video data 11, audio data 12, and data broadcast data 13 which are encoded bit streams are multiplexed by a multiplexing unit 14 into a packet stream.

The download data 17 is also multiplexed here, and information (SI) 19 for performing program management and the like is further provided.
At the same time, the download identification data 18 including the manufacturer / model code / software version of the receiver is also multiplexed.

[0005] The multiplexed bit stream is converted into a transport stream by the transmission encoding unit 15, and then modulated and transmitted by the modulation unit 16.

On the receiving side, as shown in FIG. 7, a received signal is demodulated by a demodulation unit 71 and decoded into a transport stream, and then separated by a video signal 76, audio data 77, data broadcast data and download data. And identification data 78.

The video / audio data is processed by a video / audio processing unit 74.
And the data including the download data and the identification data are sent to the CPU 73. The CPU extracts identification data corresponding to the maker / model / software version of the receiver from the reception transport data, and obtains information on software download data corresponding to the receiver to be selected from the data. . The CPU stores the software data 79 in the memory 75 from the information.

[0008]

In the conventional method, for the data to be downloaded, the transmitting side transmits only information relating to the identification of the manufacturer / model / software version of the data required by the receiving side.

[0009] Since the receiving side separates and recognizes the information, the receiving side can only select whether or not to obtain the download data. Individual detailed information such as a function of the program included in the download data and a message to the receiver regarding the data is not obtained. You will get it without knowing it. Also, the storage of the download data is accumulated over the entire corresponding software.

In such a case, there is a possibility that data unnecessary for the receiving side and program data of a portion that does not require updating of software may be downloaded.
When the download time and the memory capacity are wasted, and the download data is charged, there is a problem that a burden is imposed on the receiver.

[0011]

According to the present invention, in a transmission system, in addition to identification data of download data such as a maker / model / software version for a receiver, individual data relating to the data is added to the download data. Send.

The receiving system separates and identifies individual data related to the download data included in the download data sent from the transmission system, and acquires individual information for each receiver. Alternatively, information about a download type is obtained.

In the present invention, the above means enables the receiving side to recognize the individual information for each receiver transmitted from the transmission system. Therefore, in a receiver equipped with this system,
The obtained various information is notified to the receiver.

[0014] Further, the download process is switched by combining the obtained various information and the process of responding to the notification to the recipient, thereby simplifying the operation related to the download of the recipient and shortening the download time.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a download transmission system according to the present invention will be described. The main system blocks are equivalent to the conventional system of FIG.

However, regarding the download data,
Due to the data structure to be described later, the system differs from the conventional system in that the data is multiplexed as a part of data for data broadcasting or in the same manner as the program management information (SI).

The download data structure will be described below.

FIG. 2 shows the internal structure of the data. The inside of the download data is divided into two parts: the data of the software main body for each receiver and the individual data corresponding to the individual data on a 1: 1 basis.

FIG. 2A shows an example in which the individual data layer and the data layer of the software main body are present in the download data by dividing the area. Block 0 to an arbitrary block n of the download data is assigned to individual data, and block (n + 1) is assigned to software main body data.

At this time, the size of the data block is fixed by the download system, but the individual data or the software main body data may exist in a single block or may extend over a plurality of blocks.

FIG. 2B shows a case where individual data and software data in the download data exist as a set. Block A is assigned as an area for individual data and software data of download data A, and block B is assigned as an area for individual data and software data of download data B, and so on.

Also in this case, the data size of each block is fixed by the system.

In the second embodiment, a download receiving system according to the present invention will be described. Here, the description of the download transmission system is omitted because it is constituted by the system of the first embodiment.

FIG. 3 shows a block diagram of the receiving system, but the main configuration is the same as that of the conventional system. A signal from the transmission system is received, demodulated and decoded, and then separated into video data 34, audio data 35, and data broadcast data 31 including identification data and download data.

The video data and the audio data are processed by a video / audio processing unit represented by an MPEG2 video / audio decoder. Data is sent to the CPU in the receiver, and the individual data 32 and the software data 33 are separated.

As shown in FIG. 4, the download data is separated into download data 42, download identification data 43, data broadcast data 44, and program information (SI) data 45.

The CPU recognizes the maker / model / software version in the download identification data 43, and
From the download data of the data structure shown in FIG.
Select the download data corresponding to the receiver.

Further, the selected download data is separated into download individual data 46 and software data 47.

Next, identification of individual data will be described. As shown in FIG. 5, the separated individual data 51 is further separated / identified by the CPU into user message data 52 and download identification data 53.

From the user message, the function of the software to be downloaded, the time required for the download, the charge information when charging, the broadcast time of the download menu and download data, the information on the explanation of the download method, and the like are obtained.

From the download type data, information indicating whether the download data is the entire software of the new transmission company, the software for improving the function of the receiver, or the bug correction of the software, etc. Get.

As shown in FIG. 5, the codes are individually assigned to these various data,
U separate / recognize.

Finally, the notification process for the receiver will be described. The CPU recognizes various information obtained from the individual data, and displays a message screen as shown in FIG. 6, for example, when the recipient starts downloading.

In this figure, in the case of downloading data of software upgrade, the details of the download broadcast time and the details of the upgrade are shown, and the fee is also displayed if it is charged.

Alternatively, depending on the size of the data capacity,
Also displays the required download time. In addition, a description of the download processing method is separately provided as a help function. In addition, for data in the case of software bug correction, data download is performed in the background, and processing that does not dare to be notified to the user is also possible.

The CPU combines the information thus obtained, responds to the user's request, or performs notification control to the user based on the judgment of the CPU, and stores the download data in a storage device such as a memory according to the user's instruction. Remember.

[0037]

According to the present invention, it is possible to provide a download system for transmitting / receiving detailed information on download data in addition to receiver identification data for selecting data download data, and the receiver notifies the receiver of the information. Simplifies the download operation and processing.

Further, the data download time can be reduced based on the acquired detailed information.

[Brief description of the drawings]

FIG. 1 is a basic block diagram of a download transmission system of the present invention.

FIG. 2 is a conceptual diagram showing a data structure of download data according to the present invention.

FIG. 3 is a block diagram showing an embodiment of a download receiving system of the present invention.

FIG. 4 is a diagram showing separation of various data from download data according to the present invention.

FIG. 5 is a diagram showing separation of individual data according to the present invention.

FIG. 6 is a diagram showing a download message display of the present invention.

FIG. 7 is a block diagram of a conventional download receiving system.

[Explanation of symbols]

 Reference Signs List 11 video data 12 audio data 13 data broadcast data 14 multiplexing unit 15 transmission coding unit 16 modulation unit 17 download data 18 download identification data

Claims (3)

[Claims] 1. Multiplexing and transmitting receiver identification data including information for identifying the manufacturer, model, and software version of the receiver and download data to the receiver together with video data, audio data, and data broadcasting data. A digital broadcast download transmission system for converting into a transport stream via a channel encoding device, modulating and transmitting a signal, wherein the download data is multiplexed with individual data for each receiver. 2. An apparatus for demodulating a received signal, an apparatus for decoding a transport bit stream from a demodulated signal, and separating download data and identification information from the bit stream. A device for recognizing individual data for a receiver from the information, and a device for storing multiplexed download data together with identification information matching the receiver, and separating the individual data from the download data in a digital broadcast download receiving system. And a processing corresponding to the identified individual data. 3. The digital broadcast download transmission / reception system according to claim 1, wherein message data to a receiver using the receiver and information on a download software type are transmitted as individual data included in the download data, At the receiver,
A digital broadcast download system that has a function of extracting and recognizing individual data, displaying the information as a message to a recipient at the start of the download process, and accumulating the download data by prompting the recipient to select a download process.