Invention Grant
US07663696B2 Digital/analog closed caption display system in a television signal receiver
有权
电视信号接收机中的数字/模拟闭路字幕显示系统
- Patent Title: Digital/analog closed caption display system in a television signal receiver
- Patent Title (中): 电视信号接收机中的数字/模拟闭路字幕显示系统
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Application No.: US10581152Application Date: 2004-12-08
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Publication No.: US07663696B2Publication Date: 2010-02-16
- Inventor: Khelan M. Modi , Joseph Wayne Forter , Charu Aneja , Aaron Hal Dinwiddie
- Applicant: Khelan M. Modi , Joseph Wayne Forter , Charu Aneja , Aaron Hal Dinwiddie
- Applicant Address: FR Boulogne Billancourt
- Assignee: Thomson Licensing
- Current Assignee: Thomson Licensing
- Current Assignee Address: FR Boulogne Billancourt
- Agent Robert D. Shedd; Joseph J. Opalach; Brian J. Cromarty
- International Application: PCT/US2004/041086 WO 20041208
- International Announcement: WO2005/057920 WO 20050623
- Main IPC: H04N7/00
- IPC: H04N7/00 ; H04N11/00

Abstract:
A digital television signal receiver (20) processes a digital television signal and auxiliary information contained in the digital television signal regardless of whether the auxiliary information is analog auxiliary information (36) or digital auxiliary information (34) and produces a television display signal (44) suitable for displaying the processed auxiliary information. In the case of the auxiliary information being closed caption information, the digital television signal receiver extracts and processes digital closed captioning information according to standard EIA-708 or extracts and processes analog closed caption information according to standard EIA-608. The television signal processing receiver thus allows the user the option of selecting a fallback method of obtaining captioning for a digital program signal if the digital program signal does not include digital closed captioning. Thus, if a digital television signal does not include digital closed caption information, the digital television signal receiver automatically processes any analog auxiliary information and provides a television signal having closed caption information suitable for display.
Public/Granted literature
- US20070076122A1 Digital/analog closed caption display system in a television signal receiver Public/Granted day:2007-04-05
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