Method for previewing and subscribing pay channels of digital television and system

Abstract

The invention discloses a method for previewing and subscribing pay channels of a digital television, which comprises that: a front-end service system defines a first CA product and a second CA product for each pay channel; a CA system generates long authorization management information and sends the long authorization management information to a set-top box according to the first CA product; a user browses the pay channels; after a preset duration is reached, the set-top box judges whether the user owns short authorization management information, if so, the user browses the pay channels according to the short authorization management information, otherwise, the set-top box shields the pay channels; and the user purchases the second CA product of the pay channel through an on-demand system, the CA system generates the short authorization management information and sends the short authorization management information to the set-top box, and the set-top box cancels the shielding and plays the pay channels according to the short authorization management information. The technical scheme of the invention can assist the user to master the condition of each pay channel more easily, openthe pay channels in time and realize rational consumption.

Description

technical field [0001] The invention relates to the technical field of digital television, in particular to a method and system for previewing and ordering paid channels of digital television. Background technique [0002] At present, my country is in the intensive promotion period and growth period of digital TV. Due to historical reasons, operators generally encounter the following technical difficulties, which lead to many obstacles in the promotion of paid channels: [0003] First of all, paid channels are limited to the current extensive management methods. They are all bundled and sold in the form of channel packages in the operation support system or subscriber management system. Each channel package ranges from dozens to hundreds of channels. The threshold is too high, causing a large number of users to choose to give up. [0004] Secondly, the paid channel adopts the authorization control method, and the authorization information is issued in the form of broadcast....

AI Technical Summary

Problems solved by technology

[0005] Thirdly, the user needs to go to the business hall to purchase and open a paid channel. After the business hall accepts the channel, it will issue channel authorization information to the user within a certain period of time before the user can watch it. This leads to low timeliness, and the user cannot watch it immediately when he wants to watch it Users are not willing to order

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