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Digital broadcast reception device and digital broadcast reception method

A digital broadcasting and receiving device technology, applied in the field of time setting, can solve the problems of not recording IPTV (obtaining time, not being able to see the electronic program list, etc., and achieve the effect of improving functions

Inactive Publication Date: 2014-03-26
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the following problem occurs: Although the IPTV program can be watched without setting the time, the electronic program guide (EPG) cannot be seen.
In the above-mentioned Patent Document 1, although technology related to channel search is described, there is no description of a problem unique to IPTV (acquisition time)

Method used

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  • Digital broadcast reception device and digital broadcast reception method
  • Digital broadcast reception device and digital broadcast reception method
  • Digital broadcast reception device and digital broadcast reception method

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Embodiment Construction

[0038] Before describing the embodiments of the present invention, basic terms are defined as follows.

[0039] 1) CDN (Contents Delivery Network: Content Delivery Network): A network designed for the purpose of publishing digital content.

[0040] 2) CDN structure information URI: http: / / cdn.iptvf.jp / cdn.comp : No matter which CDN is subscribed to, the URI used to obtain the CDN structure information is the same, and this URI is called the CDN structure information URI.

[0041] 3) DNS: domain name system (Domain Name System), is a system that makes the domain names and IP addresses of computers connected to the network correspond, and has the function of exchanging domain names and IP addresses. Its application is to change the IP address returned (for each CDN) according to the connected DNS.

[0042] For each CDN, the CDN structure information file is different.

[0043] 4) TCP / IP: It is a protocol for synchronizing computer time through the network, and it is a simpli...

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Abstract

Upon start of processing, a digital broadcast receiver can acquire a CDN configuration information file (XML) after newly connected to a CDN by a user's operation. Next, the digital broadcast receiver acquires a PF configuration information file written in the CDN configuration information. The digital broadcast receiver judges whether there is an IP broadcast or not. If there is an IP broadcast, the digital broadcast receiver connects to a multicast address described in the PF configuration information file (XML), and acquires information on all channels in the PF from a SI dedicated stream (all station SI including no video or audio) (channel scan). The URL of a SNTP is described in the CDN configuration information file. Time information is acquired through the SNTP at the same time as (or at a timing near the timing of, such as immediately before or immediately after) the channel scan. The above processing enables easy time acquisition which is a problem peculiar to an IPTV with which viewing of an IP broadcast is possible.

Description

technical field [0001] The present invention relates to a digital broadcast receiving technology, in particular to a time setting technology in a digital broadcast receiving device with an IPTV function. Background technique [0002] In the digital broadcast receiving device, by setting the time of the timer, it is possible to accurately schedule viewing or recording according to the electronic program table. Normal time setting processing is performed at the time of initial setting of the digital broadcast receiving apparatus. In addition, at the time of initial setting, a channel search is performed. In the technique described in the following Patent Document 1, it is disclosed that an efficient channel search is performed to provide convenience to the user. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2004-112621 [0004] In recent years, it is possible to receive various programs other than digital broadcast programs by using a digital broadcast receiving...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/8543H04N21/6437H04N7/173H04N7/24
CPCH04N21/64322H04N21/435H04N7/17318H04N21/6405H04N21/4432H04N21/235H04N21/4305H04N21/4345
Inventor 清水俊德渡边龙辅山田元
Owner SHARP KK
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