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:
Jul. 16, 2013
Filed:
Oct. 27, 2008
Masato Tanaka, Tokyo, JP;
Kazuo Asanuma, Tokyo, JP;
Mamoru Sakamoto, Tokyo, JP;
Yasuo Hosaka, Tokyo, JP;
Akinobu Maekawa, Tokyo, JP;
Hidehumi Nakagome, Tokyo, JP;
Masato Tanaka, Tokyo, JP;
Kazuo Asanuma, Tokyo, JP;
Mamoru Sakamoto, Tokyo, JP;
Yasuo Hosaka, Tokyo, JP;
Akinobu Maekawa, Tokyo, JP;
Hidehumi Nakagome, Tokyo, JP;
Taiyo Yuden Co. Ltd., Tokyo, JP;
Microspace Corporation, Tokyo, JP;
Abstract
An overflow suppression technique that is effective for avoiding degradation in image quality is provided. A fundamental waveform and detail is extracted out of an input RGB signal. A suppression gain generation unitgenerates a suppression gain from the extracted fundamental waveform. Multipliersandmultiply the detail and the fundamental waveform by the generated suppression gain, respectively. Then, an addercombines them together for a mixed output. Alternatively, equalization processing is performed as follows. A low frequency component fundamental waveform is obtained as a result of the passing of an input RGB signal through a low pass filter. A suppression gain is generated from the low frequency component fundamental waveform. Then, the input itself is multiplied by the suppression gain to obtain an output.