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Emergency alert signaling method, data structure for emergency alert message

A technology for emergency alerts and messages, applied in image communication, components of color TVs, components of TV systems, etc., can solve problems such as no processing

Inactive Publication Date: 2008-12-31
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

moreover, although it is necessary to simultaneously transmit emergency alert messages to at least two specific countries, related art emergency alert messages are not prepared to handle such transmissions

Method used

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  • Emergency alert signaling method, data structure for emergency alert message
  • Emergency alert signaling method, data structure for emergency alert message
  • Emergency alert signaling method, data structure for emergency alert message

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Embodiment Construction

[0023] Reference will now be made in detail to the preferred embodiments of the 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.

[0024] Also, terms used in the present invention are mainly selected from currently used world general terms. In addition, the inventors have used most appropriate terminology arbitrarily to keep up with the emergence of new technologies. And, the meaning of arbitrarily used terms will be clearly explained in the corresponding description. Therefore, in appreciating the present invention, the present invention should be understood not only by the names of the terms, but by the meanings of the terms.

[0025] First, the present invention is characterized in that the emergency alert message contains a country code indicating that the corresponding emergency alert message belongs to a specific country. Als...

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Abstract

A cable broadcast signal includes emergency alert messages used by cable TV systems. The emergency alert message includes an alert priority and one or more sets of alert area information respectively defining one or more areas affected by the emergency alert message. Each area information includes a first country code identifying a country and a first local area code defining a local area within the identified country. The cable TV system processes the emergency alert message by comparing each alert area information with system area information preset to the cable TV system.

Description

technical field [0001] The present invention relates to a digital cable TV receiver, and more particularly to an emergency alert processing method and a data structure of an emergency alert message in a digital cable TV receiver. Background technique [0002] Generally, digital cable TV receiver standards are classified into European type and American type. In Korea, in September 2003, the cable broadcasting station technical standard revision notice has finally been officially confirmed as the American type Open Cable (Notice No. 2003-41 of the Ministry of Information and Communication). [0003] The open cable type broadcast receiver is a valuable method for separating a POD (point of deployment) module including a conditional access (CA) system from the main body of a digital cable set-top box to prevent copying and conditional access. A system for broadcasting content. Therefore, the open cable type broadcast receiver provides a simple replacement function of the secur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/445H04N7/08H04N7/24
CPCG08B27/008H04N7/08H04N21/235H04N21/435H04N21/6118H04N21/814H04N21/8146H04N5/44H04N7/10
Inventor 尹昌植
Owner LG ELECTRONICS INC