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. 05, 2005
Filed:
Nov. 08, 2000
Teruyuki Takata, Nagano-ken, JP;
Fumio Nagasaka, Nagano-ken, JP;
Teruyuki Takata, Nagano-ken, JP;
Fumio Nagasaka, Nagano-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
Noise adding unitreads the downloaded target JPEG image from memory and adds designated noise to that JPEG image. Reverse DCT transformation unitperforms reverse discrete cosine transformation on the noise-added JPEG image, and transforms it from space frequency to spatial coordinates. Binarization unitbinarizes the image that has been expanded to spatial coordinates. This makes it possible to achieve the same processing as half-tone processing on images that have undergone normal orthogonal transformation without putting a large burden on the CPU, etc. and with a small data volume even when transferring via a communication path.