Channel search device and method using generated sub-channel table

Abstract

The invention discloses a channel search device and method using generated sub-channel table, comprising following steps: picking up service information contained in each MUX; classifying the obtained service information according to the MUX, ranking the sevice information according to a logic channel to form a channel table, and storing the channel table; forming a sub-channel table by the channel table based on input command from users and displaying the sub-channel table; executing channel searching according to the dispalyed sub-channel table. The inventive channel table generator forms the sub-channel table based on the MUX and provides service information of the MUX to users, thus, in a chanel table with a plurality of MUX, users may search service of certain MUX without further utilization of compilation or other menu.

Description

1. Technical field [0001] The present invention relates to a channel search device and method, in particular to a channel search device and method using a sub-channel table to enable a digital broadcast receiver to efficiently search for channel information desired by a user. 2. Background technology [0002] In terrestrial digital (DVB-T) broadcasting, ordinary SD (Standard Definition)-level services, data services, single audio services, and more than 3 or 20 services (or programs) are sent to multiple signals as one physical channel. The MUX (Multiplex) transfer. [0003] When receiving two or more MUXs, the digital broadcast receiver extracts service information existing in each MUX, and generates a channel table including all service information. The user is able to select a desired service using this channel list. [0004] The above-mentioned one MUX includes a plurality of various channel information classified by LCN number. The above LCN numbers are generally dis...

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Problems solved by technology

[0014] However, the above-mentioned program search method using a channel table constructed according to the prior art has the following problem: all the broadcast services contained in a plurality of MUXs received by the digital broadcast receiver are mixed and arranged to form a channel table and displayed on the display. screen, so it is difficult for the user to confirm only the channels that exist within a particular MUX

[0015] Moreover, in order to search for a service that only exists in a specific MUX, the user must use the edit function or use other menus to individually confirm the favorite MUX service, and the user must bear the inconvenience caused by this method

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