Global patent index - EP 1084577 A1

EP 1084577 A1 2001-03-21 - HDTV UP CONVERTER

Title (en)

HDTV UP CONVERTER

Title (de)

HDTV AUFWÄRTSWANDLER

Title (fr)

TRANSPOSEUR DE FREQUENCE POUR TELEVISION HAUTE DEFINITION

Publication

EP 1084577 A1 (EN)

Application

EP 99911555 A

Priority

  • CA 9900286 W
  • CA 9800304 W
  • US 8947298 A

Abstract (en)

[origin: WO9952281A2] An electronic apparatus for converting a standard video signal having 59.94 fields per second into an HDTV video signal having 60.00 fields per second, by adding a number of video fields into each sequence of 1000 video fields. The apparatus detects the best moment for adding the new video field, so that the human eye does not perceive an abrupt change in the video image, by detecting the best motion conditions which occurs either when the image motion is high or very low. For adding the new video field, the apparatus uses an interpolation technique for creating two interpolated video fields which are inserted in place of one existing video field which is deleted. The apparatus also comprises a de-interlacer module for deinterlacing the 60 Hz video image, by using an advanced interpolation technique for calculating the missing video lines. The proposed technique involves directional interpolations of the missing lines pixels in various directions and selection of the best interpolation direction for the creation of each pixel of the missing video lines. The corresponding de-interlacer apparatus comprises a novel edge direction detector which performs the mentionned interpolations in all interpolating directions and then selects the best direction for performing the interpolation for each interpolated pixel, based on the quality of the performed interpolations.

IPC 1-7 (main, further and additional classification)

H04N 7/01

IPC 8 full level (invention and additional information)

H04N 5/44 (2011.01); H04N 7/01 (2006.01); H04N 5/14 (2006.01); H04N 9/64 (2006.01)

CPC (invention and additional information)

H04N 7/0137 (2013.01); H04N 7/012 (2013.01); H04N 7/0122 (2013.01); H04N 7/0125 (2013.01); H04N 5/147 (2013.01); H04N 9/64 (2013.01)

Citation (search report)

See references of WO 9952281A3

Designated contracting state (EPC)

BE DE FR GB NL

EPO simple patent family

WO 9952281 A2 19991014; WO 9952281 A3 19991118; AU 3021999 A 19991025; DE 69928134 D1 20051208; EP 1084577 A1 20010321; JP 2002510946 A 20020409

INPADOC legal status

2002-11-06 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20020501

2001-08-22 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010709

2001-03-21 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20001019

2001-03-21 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): BE DE FR GB NL