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:
Nov. 22, 2005
Filed:
Aug. 25, 2000
Yuji Konno, Kawasaki, JP;
Hisashi Ishikawa, Urayasu, JP;
Hiroshi Tajika, Yokohama, JP;
Miyuki Fujita, Tokyo, JP;
Norihiro Kawatoko, Kawasaki, JP;
Tetsuya Edamura, Kawasaki, JP;
Tetsuhiro Maeda, Kawasaki, JP;
Yuji Konno, Kawasaki, JP;
Hisashi Ishikawa, Urayasu, JP;
Hiroshi Tajika, Yokohama, JP;
Miyuki Fujita, Tokyo, JP;
Norihiro Kawatoko, Kawasaki, JP;
Tetsuya Edamura, Kawasaki, JP;
Tetsuhiro Maeda, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
When highly redundant information that expresses five tones using 4 bits is transferred to a printer in terms of a unit data length in data transfer, efficiency is very poor. Hence, multi-valued data is quantized to 5-valued data, which is output as a 4-bit code that can express five values. 4-bit codes for three bits are combined to be converted into an 8-bit code. The 8-bit codes are packed into data of a 16-bit unit, and the packed data is transferred to the printer.