Daughter card activating method for set-top box

Abstract

The invention relates to the field of digital television conditional access, discloses a daughter card activating method for a set-top box, and overcomes the defects in activating a daughter card in a conventional mother-daughter card implementation mode. The summary of the main points of the technical scheme is that: when mother-daughter card information is registered, a front-end conditional access system (CAS) distributes a parity bit to each group of matched mother card and daughter card randomly and transmits the parity bit through entitlement management message (EMM); and the set-top box learns corresponding parity bit information and mother-daughter card information by analyzing the number of an inserted smart card; a specific parity bit can be viewed through a menu on the set-top box of the mother card; and the set-top box of the daughter card only stores the parity bit but cannot view or learn. When the daughter card is going to be limited or has been limited, the daughter card is activated by inputting the parity bit information of the mother card. The daughter card activating method for the set-top box is suitable for the mother-daughter card of a digital television set-top box.

Description

technical field [0001] The invention relates to the field of digital television conditional access, in particular to a method for activating a daughter card of a set-top box. Background technique [0002] With the improvement of living standards, ordinary families now generally have multiple TV sets, and the original analog TV can be watched together through splitters, and each user only needs to pay a fixed viewing fee; the overall translation of digital TV In the future, the signal source is encrypted. In order to watch digital TV programs normally, each TV set needs to be equipped with a separate set-top box and smart card. At the same time, a corresponding program package needs to be purchased for each smart card. users, the cost of watching TV programs doubles. [0003] In order to alleviate this problem, current operators generally adopt the method of sub-cards, that is, users purchase one main card and multiple sub-cards. The main card adopts the standard charging p...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: to propose a method for activating a sub-card of a set-top box, which solves the problem of affecting the service life of the sub-card and the card slot of the set-top box in the traditional technology when activating the sub-card, affecting the normal viewing of the set-top box of the mother card, and the operation is not human enough flaws

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