JPH05276124A - Satellite broadcast system - Google Patents

Abstract

PURPOSE:To spontaneously release the scramble of a specific audience and a specific program based on the searched result of the credit of an audience. CONSTITUTION:An ID code and a program designation code assigned to each audience are transmitted from a program designating device 10, converted into a program designation sentence by a protocol converter 5, and transmitted to a satellite broadcast earth station 2. The satellite broadcast earth station 2 searches the credit of the audience by a data base 4 based on the program designation telegraphic message, and transmits the scramble release signal of the specific program through a satellite device 3 to the specific audience based on the result. Then, the scramble can be released by a scramble decoder 9 at an audience house 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a satellite broadcasting system, and more particularly to a scramble type satellite broadcasting system.

[0002]

2. Description of the Related Art In a conventional scramble-type satellite broadcasting system, a scramble is descrambled for each broadcasting channel by making a reception contract with a broadcasting center in advance.

[0003]

In this conventional satellite broadcasting system, the scramble is descrambled by making a receiving contract in advance with a document. Therefore, the descramble of only the program to be viewed is instantly performed. There was a problem that it was impossible to perform and watch.

[0004]

A satellite broadcasting system according to the present invention is a scramble decoder which descrambles by receiving an ID code assigned to each viewer of a broadcast in the satellite broadcasting system in which the broadcast contents are scrambled. And at least the above ID via an antenna and receiver for receiving broadcasts from satellites and satellites and public telephone networks.
A viewer-side facility is provided with a program designating device that sends a code and a program designating code by a push button signal or a dial pulse signal, and at least the ID code and the program designating code sent by the push button signal or the dial pulse signal. A protocol conversion device for converting into a character code and transmitting it to the public packet switching network, and a character program of at least the above-mentioned ID code and program designation code transmitted from this protocol conversion device and receiving a specific program for a specific viewer. A satellite broadcasting earth station having a function of transmitting a descrambling signal,
It is provided with a satellite device and a database for conducting a credit check of viewers using at least the ID code.

[0005]

In the present invention, the program is designated by the ID code and the program designation code assigned to each viewer.

[0006]

FIG. 1 is a block diagram showing an embodiment of the present invention. In FIG. 1, 1 ₁ ... 1n are information providers, 6 is a viewer's house, and in this viewer's house 6, an ID (Identification) assigned to each viewer of the broadcast
A scramble decoder 9 for descrambling by receiving a code, an antenna 11 and a receiver 12 for receiving broadcasting from a satellite, and a push button signal or dial pulse for the above ID code and program designating code via the public telephone network 7. The program designating apparatus 10 for sending out as a signal is provided as a viewer-side facility. 5 is an ID sent by a push button signal or dial pulse signal
A protocol conversion device for converting a code and a program designation code etc. into a character code and sending out to the public packet switching network 8;
Reference numeral 2 denotes a satellite broadcasting earth station having a function of receiving a character coded ID code and a program designation code transmitted from the protocol conversion device 5 and transmitting a descrambling signal of a specific program to a specific viewer. Is a satellite device, and 4 is a database for conducting a credit check of viewers using an ID code or the like.

FIG. 2 is a flow chart for explaining the operation of FIG. 1 and shows a processing procedure from program designation to transmission of a descramble signal. Next, the operation of the embodiment shown in FIG. 1 will be described with reference to FIG. First, the information provider 1 ₁
1n each create a program, send information such as video, audio, music, etc. to the satellite broadcasting earth station 2, scramble at the satellite broadcasting earth station 2, and send it to the viewer's house 6 via the satellite device 3. Further, it is assumed that the scramble decoder 9 in the viewer's house 6 is assigned an ID code for each viewer.

Now, when a viewer inputs a program he / she wants to watch into the program designating device 10, the ID of the scramble decoder 9
A program designation code together with the code is sent to the protocol conversion device 5 via the public telephone network 7 in the form of a push button signal or a dial pulse signal. In this protocol conversion device 5, the satellite broadcasting earth station 2 is converted into a character code and used as a program designation message via the public packet switching network 8.
Send to. The satellite broadcasting earth station 2 creates a credit check message from the program specifying message and sends it to the database 4 via the public packet switching network 8.

Next, the database 4 conducts a credit check of the viewer based on the credit check message, and sends the check result as a credit check result message to the satellite broadcasting earth station 2 via the public packet switching network 8. And the result of the credit check is "good"
If so, a descramble signal is transmitted via the satellite device 3 so as to descramble a specific program to a specific viewer designated by the program designation message. At the viewer's house 6, the scramble decoder 9 receives the descramble signal via the antenna 11 and sends the descrambled information to the receiver 12. FIG. 2 shows a flow of processing from designation of a program to transmission of a scramble cancellation signal. Then, in each of the process steps 101 to 105 of the flowchart shown in FIG. 2, a predetermined process is executed.

[0010]

As described above, according to the present invention, the program is designated by the ID code and the program designation code assigned to each viewer. This has the effect that the specific program can be descrambled immediately.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of FIG.

[Explanation of symbols]

1 _{1 to} 1n Information provider 2 Satellite broadcasting earth station 3 Satellite device 4 Database 5 Protocol conversion device 6 Viewer's home 7 Public telephone network 8 Public packet switching network 9 Scramble decoder 10 Program designation device 11 Antenna 12 Receiver

Claims (1)

[Claims] 1. In a satellite broadcasting system in which broadcast contents are scrambled, a scramble decoder for descrambled by receiving an ID code assigned to each viewer of the broadcast, an antenna and a receiver for receiving the broadcast from the satellite. In addition, a viewer is provided with a program designating device that sends at least the ID code and the program designating code as a push button signal or a dial pulse signal via a public telephone network, and the program is sent by the push button signal or the dial pulse signal. A protocol conversion device that converts at least the ID code and the program designation code into a character code and sends the character code to the public packet switching network, and receives and identifies at least the character coded ID code and the program designation code sent from the protocol conversion device. , A satellite broadcasting earth station having a function of transmitting a descrambling signal of a specific program to the viewer, a satellite device, and a database for conducting a credit check of the viewer using at least the ID code. And satellite broadcasting system.