Interpolation method for a video signal, and display device...

Television – Format conversion – Changing number of lines for standard conversion

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

09890214

ABSTRACT:
A video signal interpolation can adapt an image of input video signal to voluntary aspect ratios widely. The invention also allows a display device to uniformly line-sequential scan and uses at least two line-memories (LM1, LM2) which are applied with an input digital video signal and controls writing and reading for these line-memories to generate a video signal subjected to vertical interpolation from a reading output of the line-memories. In the control, any one of the line-memories are circularly selected, and a sample sequence of the input digital video signal is sequentially written into the selected line-memory at its sample rate while sequentially reading out samples of the written sequence at a constant rate which is higher than the sample rate and which is according to a desired ratio of interpolation (vertical expansion ratio), wherein, when one of the line-memories is in writing operation, the other one of the line-memories is repeatedly read out. The invention also relates to a horizontal interpolation method for a video signal.

REFERENCES:
patent: 5168362 (1992-12-01), Yoshida
patent: 5928313 (1999-07-01), Thompson
patent: 5963261 (1999-10-01), Dean
patent: 5978052 (1999-11-01), Ilcisin et al.
patent: 6072457 (2000-06-01), Hashimoto et al.
patent: 6348950 (2002-02-01), Kishida
patent: 6404458 (2002-06-01), Kang
patent: 6667773 (2003-12-01), Han, II
patent: 6714717 (2004-03-01), Lowe et al.
patent: 6806914 (2004-10-01), Onagawa
patent: 6831700 (2004-12-01), Hoshikawa

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Interpolation method for a video signal, and display device... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Interpolation method for a video signal, and display device..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interpolation method for a video signal, and display device... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3828015

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.