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Method and system for switching card CA (conditional access) and card-free CA of set-top box

A technology for switching systems and set-top boxes, which is applied in the field of communication, and can solve problems such as inconvenience and unusable CA set-top boxes without a card

Inactive Publication Date: 2015-09-02
SHENZHEN JIUZHOU ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, it is necessary to provide a method and system for switching between card-based CA and non-card CA in a set-top box, aiming at the problem that the above-mentioned non-card CA set-top box cannot use all functions and brings great inconvenience to users.

Method used

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  • Method and system for switching card CA (conditional access) and card-free CA of set-top box

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0023] figure 1 It is a flow chart of the set-top box having a card CA and no card CA switching method in an embodiment, such as figure 1 As shown, the method includes the following steps:

[0024] S10: The non-card CA set-top box allocates a separate storage area in the memory, and the storage area is used to store configuration information of the card-enabled CA (with a smart card).

[0025] Since there is no smart card in the cardless CA set-top box, there is no carded CA. To make the non-card CA set-top box have the function of card CA, it must have various configurations of card CA. Theref...

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Abstract

The invention relates to a method and a system for switching card CA (conditional access) and card-free CA of a set-top box. The set-top box distributes an independent storage area in memory, configuration information of card CA is stored in the storage area so as to realize a function of card CA, then a TS (transport stream) is received in real time, a CA switching identifier in the TS is acquired, and switching between card CA and card-free CA of the set-top box is carried out according to the CA switching identifier, so that the function of card CA is realized on a card-free set-top box without an intelligent card, thereby enabling users to user all functions, and bringing great convenience to the users.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and system for switching between a set-top box with a card-based CA and a card-less CA. Background technique [0002] Conditional Access (CA) system is a digital payment system that encrypts digital TV programs to establish an effective charging system. It uses various digital technologies to encrypt programs so that operators can Only authorized users can watch encrypted programs, thus protecting the interests of operators and authorized users. [0003] At present, for the convenience of users, CA companies have released set-top boxes without card CA (no smart card). The set-top box without card CA does not require users to purchase CA smart cards, which brings convenience to users. However, because the non-card CA does not have all the functions, some functions are restricted, such as IPPV, quasi-broadcasting and other functions, these functions can only be performed by the...

Claims

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Application Information

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IPC IPC(8): H04N21/418H04N21/435
CPCH04N21/4181H04N21/435
Inventor 韦豪
Owner SHENZHEN JIUZHOU ELECTRIC