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:
Aug. 02, 2005
Filed:
Dec. 10, 2001
Hideaki Kawamura, Moriyama, JP;
Mitsuhiro Kasahara, Hirakata, JP;
Tomoaki Daigi, Kadoma, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A binarizer binarizes a video signal VDinputted from an A/D converter and a video signal VDoutputted from a line memory using an average luminance value LU fed from a detection window video signal processor as a threshold value, to output a binary pattern BI. A reference pattern generator generates a plurality of reference patterns RA. A first pattern matching angle detector compares the binary pattern BI with each of the plurality of reference patterns RA, to output the angle of the reference pattern RA which matches with the binary pattern BI as angle information PA. A detected isolation point removeroutputs angle signal AN when the angle information PA has continuity.