Invention Grant
- Patent Title: Digital broadcast receiver and digital broadcast reception method
- Patent Title (中): 数字广播接收机和数字广播接收方式
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Application No.: US13122688Application Date: 2009-10-05
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Publication No.: US08667537B2Publication Date: 2014-03-04
- Inventor: Toshinori Shimizu , Ryuhsuke Watanabe , Hajime Yamada
- Applicant: Toshinori Shimizu , Ryuhsuke Watanabe , Hajime Yamada
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2008-260098 20081006
- International Application: PCT/JP2009/067346 WO 20091005
- International Announcement: WO2010/041627 WO 20100415
- Main IPC: H04N5/445
- IPC: H04N5/445 ; H04N7/173

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.
Public/Granted literature
- US20110197244A1 DIGITAL BROADCAST RECEIVER AND DIGITAL BROADCAST RECEPTION METHOD Public/Granted day:2011-08-11
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