Host-based anti-ghosting of teletext data based on non-oversampl

Details Host-based anti-ghosting of teletext data based on non-oversampl Host-based anti-ghosting of teletext data based on non-oversampl

1998-04-23

2000-05-23

Peng, John K.

Television

Format

Including additional information

348468, 348466, 348461, 348614, H04N 521, H04N 700

Patent

active

06067122&

ABSTRACT:
A method and apparatus are provided for performing host-based anti-ghosting of teletext data in a television signal using non-oversampled data. Teletext data is first encoded within a television signal using multi-level error correction encoding, including the use of an inner correction code and an outer correction code. The television signal is then transmitted using multiple signal level modulation encoding, while adhering to the standard teletext timing. A remote computer system receives the television signal containing the encoded teletext data. A tuner/capture subsystem of the computer system oversamples the teletext data and uses the oversampled data to reconstruct the bit peaks of the teletext data. The teletext data are then provided to a main memory of the computer system via a host interface as non-oversampled data. The host processor performs anti-ghosting, data slicing, and multi-level decoding of the teletext data based on the non-oversampled data.

REFERENCES:
patent: 4388645 (1983-06-01), Cox et al.
patent: 4449145 (1984-05-01), Ciciora
patent: 4679082 (1987-07-01), Shibasaki
patent: 4896213 (1990-01-01), Kobo et al.
patent: 5047859 (1991-09-01), Koo
patent: 5111298 (1992-05-01), Koo
patent: 5321512 (1994-06-01), Huang
patent: 5361102 (1994-11-01), Roy et al.
patent: 5448299 (1995-09-01), Yang et al.
patent: 5488418 (1996-01-01), Mishima et al.
patent: 5555025 (1996-09-01), McArthur
patent: 5600380 (1997-02-01), Patel et al.
patent: 5619275 (1997-04-01), Tults
patent: 5627594 (1997-05-01), Van Gestel
patent: 5812207 (1998-09-01), Cahill
patent: 5812217 (1998-09-01), Cahill, III

Affiliated with

Also associated with

Rating

Host-based anti-ghosting of teletext data based on non-oversampl does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Host-based anti-ghosting of teletext data based on non-oversampl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Host-based anti-ghosting of teletext data based on non-oversampl will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1840583