The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 2007
Filed:
Dec. 01, 2003
Ho-nam Lee, Suwon-si, KR;
Koich Sono, Suwon-si, KR;
Bong-hwan Cho, Hwaseong-gun, KR;
Tae-young Lee, Suwon-si, KR;
Ho-nam Lee, Suwon-si, KR;
Koich Sono, Suwon-si, KR;
Bong-hwan Cho, Hwaseong-gun, KR;
Tae-young Lee, Suwon-si, KR;
Samsung Electronics Co., Ltd., Kyungki-do, KR;
Abstract
A method and apparatus for removing false contours in a pulse number modulation (PNM) digital display device having a plasma display panel (PDP). The method involves a) comparing the input data with the comparison data and calculating a plurality of possible output data in consideration of an index error between the input data and error-diffused input data so that the false contours can be removed, the error-diffused input data being obtained by diffusing a quantization error that has occurred in pixels adjacent to the input data in the current frame; b) detecting an index error between the input data and the error-diffused input data; and c) selecting one from among the plurality of possible output data obtained in step a) in consideration of the index error detected in step b).