Digital broadcasting receiver and method for controlling the same

A technology for receivers and broadcast signals, which is applied in the field of digital broadcast receiving systems, and can solve problems such as deterioration of reception performance and deterioration of reception performance of digital broadcast reception systems

Inactive Publication Date: 2013-05-15
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in a bad channel environment, the receiving performance of the digital broadcast receiving system will deteriorate
In particular, reception performance may be further degraded when transmitting mobile service data using VSB transmission mode due to the higher immunity to channel variations and noise required when using portable and / or mobile broadcast receivers
[0004] Furthermore, in the conventional mobile digital broadcasting environment, the current reality is that there is no specific technique for setting or disabling conditional access to a specific service

Method used

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  • Digital broadcasting receiver and method for controlling the same
  • Digital broadcasting receiver and method for controlling the same
  • Digital broadcasting receiver and method for controlling the same

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Embodiment Construction

[0064] Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. In addition, although the terms used in the present invention are selected from known and commonly used terms, some of the terms mentioned in the description of the present invention are selected by the applicant based on his or her own consideration. The detailed meaning of these terms is explained. Furthermore, the present invention cannot be understood simply by terms actually used, but needs to be understood by the meaning inherent in each term.

[0065] Among terms used in the description of the present invention, "main service data" corresponds to data that can be received by a fixed reception system, and may include audio / video (A / V) data. More specifically, the main service data may include...

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Abstract

A digital broadcast receiver and a control method thereof are disclosed. The control method includes receiving a broadcast signal into which mobile service data and main service data are multiplexed, extracting TPC signaling information and FIC signaling information from a data group in the received mobile service data, acquiring a program table describing virtual channel information and a service of an ensemble, using the extracted FIC signaling information, the ensemble being a virtual channel group of the received mobile service data, detecting a conditional access descriptor indicating whether the mobile service data was encrypted, using the acquired program table, and controlling such that the encrypted mobile service data is decrypted, using information of the detected conditional access descriptor.

Description

technical field [0001] The present invention relates to a digital broadcasting system, and more particularly, to a digital broadcasting receiving system and a method for controlling the digital broadcasting receiving system. Background technique [0002] The digital broadcasting system consists of a digital broadcasting sending system (or transmitter) and a digital broadcasting receiving system (or receiver). In addition, a digital broadcast transmission system digitally processes data such as a broadcast program, and transmits the processed data to a digital broadcast reception system. Due to various advantages of the digital broadcasting system, such as efficient data transmission, the digital broadcasting system is gradually replacing the conventional analog broadcasting system. [0003] However, a vestigial sideband (VSB) transmission mode adopted as a digital broadcasting standard in North America and Korea is a system using a single carrier method. Therefore, in a ba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/414H04N21/426H04N21/434H04N21/442H04L1/00H04N7/015H04N21/235
CPCA01K1/0107A01K15/02A01K23/00
Inventor 朴尚洁催仁焕李哲秀
Owner LG ELECTRONICS INC
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