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:
Jun. 27, 2000
Filed:
Apr. 09, 1997
Toshiyuki Yasui, Osaka, JP;
Yasushi Fukushima, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An error correction apparatus corrects erroneous data and reduces deformation of a displayed picture when inputted data are high frequency data around the erroneous data. R, G and B channel signals of data are inputted via input nodes 1a, 1b and 1c. A controller generates signals ch1 and ch2 which specify the erroneous data channel and a channel for data correction according to a control signal C from an error detection circuit. A correction data circuit generates correction data. For example, if G(i) is assumed to be erroneous data, the correction data circuit generates correction data as G'(i)=R(i)+G(i+1)-R(i-1) based on the previous data G(i-1) provided by a delay circuit and the data of the other errorless channel. The erroneous data G(i) is replaced with the correction data G'(i) and a set of corrected data R(i), G'(i) and B(i) is outputted as output data.