JPH02295240A - Picture information transmission method - Google Patents

Abstract

PURPOSE:To improve the transmission efficiency of the picture information by securing such a constitution where each transmission subject controls dispersedly the transmission of the picture information and a broadcasting station deals with only the change of the type of the broadcast picture information when plural transmitters transmit the picture information by means of the broad cast of plural receivers. CONSTITUTION:The catalog transmission subject 1a-1n receive the catalog transmission requests from the picture information reception system 3A-3M of the households included in a receptable area of a TV broadcasting station 2 via a public telephone network 4. Thus the subjects 1a-1n transmit the broadcast picture ID lists forming a relevant catalog in each busy mode. Then the reception pictures are selected at the reception side based on the ID list even if the entry/secession of receivers occur frequently together with the change of the transmission contents. As a result, each of subjects 1a-1n can dispersedly control the transmission of the picture information. Then a broadcasting station is required just to deal with only addition/change of types of broadcast picture information. Thus an effective picture information transmission method is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for transmitting images from multiple senders to multiple recipients. [Prior Art] Conventionally, as a method of transmitting image information to a plurality of specific recipients, there has been a method of transmitting image information with recipient addresses attached. For example, as shown in Figure 2, a broadcasting station adds a destination address to each image it broadcasts (as many destination addresses as there are destinations). The receiver was supposed to extract and record only the image with his or her address attached from the broadcast content. Therefore, between the cost per bit transmission of broadcasting B, the cost per bit transmission of individual communication T, and the number of duplications n of transmitting the same information redundantly, B < n T
...If the relationship (1) exists, the transmission method using address-added broadcasting would be advantageous in terms of cost. [Itlllm to be Solved by the Invention] In the above-mentioned conventional technology, there are multiple image information transmitting entities, new subscribers/withdrawals of new receivers, and changes in transmission contents occur frequently, and each transmitting entity handles these in a distributed manner. Broadcasting stations do not take into account the cases in which addresses should be managed in accordance with the broadcasting content, and the broadcasting station does not take into account the cases in which addresses should be managed when a receiver newly joins, the address is canceled in the reverse case, and the address part of the broadcast content is There is a problem in that it is necessary to perform complicated processing such as accepting change notifications and dynamically changing broadcast content based on the change notifications.

An object of the present invention is to transmit image information to multiple receivers at a low cost by using broadcasting, even when new receivers join or withdraw, and the content of the transmission changes frequently. An object of the present invention is to provide an efficient method for transmitting image information, in which each transmitter can manage the transmission of image information in a distributed manner, and the broadcast station only needs to respond to changes in the type of broadcast image information.

[Means to solve the problem]

In order to achieve the above purpose, each sender sends the image information to be transmitted to the broadcasting station, the broadcasting station temporally connects the above image information and prepares it on a storage medium, and the broadcasting station sends the image information from each sender. The sender sends back to each sender the location information of where the received image information is located in the series of image information on the storage medium, and the sender sends a list of the locations of the images that the receiver should receive in the broadcast content. The broadcasting station broadcasts a series of image information on the storage medium by determining the list of image information to be sent to each recipient and the returned position information, and transmitting it to the recipient through the telephone network.
Based on the transmitted image position information, the receiver selects only the image information to be received from the contents of the broadcast and stores it in the image storage medium.

(Operation) Figure 2 shows the principle of the present invention using the transmission of catalogs as an example. A sender sends four types of catalogs aS, ..., Ca to seven households hx, ..., hy. As shown in (C), each catalog consists of a combination of three pieces of image information ■, ■, ■.The sender sends a message to the household hz, as shown in (b) of the same figure. We are trying to send a catalog of Ql to household h2, a catalog of c2 to household h2, and so on.

From the catalog recipients in Figure (b) and the catalog composition images in Figure (c), the relationship between each image and the destination household is determined in Figure (b).
) is shown in the table below.

Now, there are multiple senders of catalogs, and there are image information other than ■, ■, and ■ sent from broadcasting stations, and they are temporally connected at position n 1 in the series of image information shown in Figure 4.
yn 2 e n 8 becomes the identification information of the image information ■, ■, ■. Therefore, new requesting household h6 in catalog 01
If n1 and n2 are sent in advance as identification pick-up, household h8 can receive the images that make up the catalog ax.
, ■ can be selectively taken in, and there is no need to change the broadcast contents of the image information shown in FIG.

Further, as shown in FIG. 2(c), even if 05 is added to the catalog type for the catalog sender, there is no need to change the broadcast content of the image information in FIG. 3. However, if the additional image ■ is required as a component, as in the additional catalog c6 in Figure 2 (c), the main image information ■ should be added as the ninth image to the broadcast content, and the position It is necessary to obtain information n4.

〔Example〕

An embodiment of the present invention will be explained below with reference to FIG. The main body of catalog transmission from 1a to 1n is each image information receiving system 3A of households in the area where TV broadcasting station 2 can be received.
, 3B, . . . , 3G through the public telephone network 4, the broadcast image ID list constituting the corresponding catalog is transmitted during each call.

As shown in FIG. 1(b), the image information receiving system 3 includes a receiving antenna 5, a tuner 6, an image storage device 7, an image display device 8, an image II) determination device 9, and a personal computer device 1.
0, an image ID storage device 11, and an ISDN interface 12.

A catalog transmission request is input from the personal computer 10, and
It is sent to any of the catalog sending entities 1a, . . . , 1n via the SDN interface 12, and the requested catalog configuration image I. The D list is temporarily stored in the image ID storage device 11.

Each catalog sending entity 1a,...,In attaches a continuous image pick-up to the plurality of catalogs issued by each of them, excluding duplicate images that make up the catalog, and the contents are shown in FIG. 2(c). Catalog composition image table 13
The images are prepared in advance, duplicates are removed, the images are manually generated from the image processing device 14, and the images are transmitted to the broadcasting station 2 through the dedicated line 15.

The broadcast station 2 stores the transmitted images in the broadcast image string storage device 16.
Add the ID number (plurality) to the end of the image information string shown in FIG.
15, a reply is sent to the catalog sending entity 1, which is the image sending source. Catalog sending entity 1 sends the returned image io,
Catalog composition image table 13 corresponding to continuous image #
Store in.

When each catalog sending entity l receives the requested catalog type Q1 from the personal computer 10 of the image information receiving system 3, it selects the images constituting the requested catalog c from the catalog composition image table 13 in FIG. 2(C). The image ID is picked up and used as a request catalog constituent image ID list.

The broadcasting station 2 arranges the contents of the broadcast image sequence storage device 16 in which the images sent from the transmitting entity 1 in each catalog are stored in a chronological order as shown in FIG.
It will be broadcast from. Each image information receiving system 3 uses the image ID attached to each image information in the image information string shown in FIG. 3 received by the receiving antenna 5 and tuner 6 to
The image I determined by the D determination device 9 and sent via the personal computer 10
If it matches any image ID list on the D storage device 11, the image information is stored in the image storage device 7.

In this way, once all the images constituting the request catalog have been stored in the image storage device 7 (discarding the other broadcast contents), the users of each image information receiving system 3 can use the image display device 8 at any time. You can view the contents of the requirements catalog with . [Effects of the Invention] According to the present invention, when a plurality of senders transmit image information to a plurality of receivers at low cost using broadcasting, new additions and withdrawals of the receivers and changes in the transmission contents are not required. Even if this occurs frequently, the image information ID is sent to the receiving side via the telephone network, etc., and the receiving side selects the received image, so each broadcasting entity can manage the transmission of image information in a decentralized manner, and the broadcasting station can control the transmission of image information. It is possible to provide an overall efficient image information transmitting method that only needs to deal with adding and changing the type of image information and does not require address management of destinations or management of transmission contents to individual destinations.

[Brief explanation of drawings]

FIG. 1(a) is a model diagram showing the overall system structure of an embodiment of the present invention, FIG. 1(b) is a model diagram of an image information receiving system, and FIG. 2 is a diagram explaining the principle of the present invention. The same figure (a
) is an explanatory diagram showing the transmission correspondence of image information, (b) is a catalog and images to be sent to each household, and (c) is a catalog configuration image table. Figure 3 is an explanatory diagram of image information temporally linked for broadcasting. Toki I concave

Claims (1)

[Claims] 1. In a method for transmitting image information from a plurality of senders to a plurality of receivers, (a) each sender sends the image information to be transmitted to a broadcasting station; (b) the broadcasting station The above image information is temporally linked and prepared on a storage medium, and (c) the broadcasting station collects position information on where the image information sent from each sender is located in the series of image information on the storage medium. (d) The sender obtains a list of the positions of images to be received by the receivers in the broadcast content from the list of image information to be sent to each receiver and the returned position information; (e) The broadcasting station broadcasts a series of image information on the storage medium, and (f) The receiver extracts the content of the broadcast based on the transmitted image position information. A method for transmitting image information, characterized in that only image information to be received is selected and stored in an image storage device. 2. In the image information transmission method according to claim 1, the broadcasting station attaches an identification code to the image information to be broadcast;
An image information transmission method characterized in that the identification code is returned to each sender, and the sender sends an identification code list to the recipient. 3. In the method for transmitting image information according to claim 1, the list of image information to be received, which the sender transmits to each recipient, is realized by mailing a magnetic card. How to send information. 4. A method for transmitting image information according to claim 1, characterized in that the series of image information on the storage medium is broadcast by cable TV. 5. A method for transmitting image information according to claim 1, characterized in that the series of image information on the storage medium is broadcast by satellite broadcasting.