Teletext data detection by data content based...

Details Teletext data detection by data content based... Teletext data detection by data content based...

2008-01-08

2008-01-08

Lee, M. (Department: 2622)

Television

Nonpictorial data packet in television format

Data separation or detection

C348S468000, C375S360000, C375S359000

Reexamination Certificate

active

07317489

ABSTRACT:
A technique to provide a cost effective solution to detect teletext data that can reduce detected error in teletext when the transmission data rate is known. In one example embodiment, this is accomplished by detecting data bits in an unsynchronized digital data stream by finding start of each data bit based on an estimated data bit width and transitions in the unsynchronized digital data stream.

REFERENCES:
patent: 5371545 (1994-12-01), Tults
patent: 5832045 (1998-11-01), Barber
patent: 7098960 (2006-08-01), Suzuki et al.

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