Video and text display with reduced text flicker

Details Video and text display with reduced text flicker Video and text display with reduced text flicker

2008-01-01

2008-01-01

Kostak, Victor R. (Department: 2622)

Television

Basic receiver with additional function

For display of additional information

C348S468000

Reexamination Certificate

active

07315332

ABSTRACT:
A display apparatus comprises a signal converter (SC) which converts input text information (IT) and interlaced input video information (IV) with a number of video lines (Li) in a video field (Fi) into a display signal (DS) which comprises display text (Ti) and display video (Vi). An addressing circuit (AD) addresses a display screen (DSC) of the display apparatus in successive non-interlaced display fields (Fi) which have a duration substantially equal to the video field (Fi) and a number of display lines (DLi) which is substantially twice the number of video lines (Li). The signal converter (SC) has an output to supply the display signal (DS) in which the display video (Vi) is present on odd or even display lines (DLi) only, in respective successive display fields (Fi), and in which the display text (Ti) is present on same display lines (DLi) of the successive display fields (Fi).

REFERENCES:
patent: 5109279 (1992-04-01), Ando
patent: 6188487 (2001-02-01), Matsubara
patent: 6204883 (2001-03-01), Tsukagoshi
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patent: 6281933 (2001-08-01), Ritter
patent: 6297797 (2001-10-01), Takeuchi et al.
patent: 6456329 (2002-09-01), Tinker et al.
patent: 6567925 (2003-05-01), Kimura
patent: 6642934 (2003-11-01), Hrusecky et al.
patent: 0697790 (1996-02-01), None

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