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:
Apr. 22, 2003
Filed:
Apr. 09, 1997
Hidefumi Osawa, Kawaguchi, JP;
Yoshinobu Mita, Kawasaki, JP;
Tadayoshi Nakayama, Tokyo, JP;
Ken Onodera, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An analyzer estimates the time for rendering image data based on the number, types, etc., of rendering commands, stored in an intermediate memory, and determines whether or not there is a possibility of overrun. If there is the possibility of overrun, image data of respective bands formed in a band buffer are sequentially compressed and stored into a compressed image memory. When the image data for one page has been stored, the data in the compressed image memory is sequentially expanded and supplied to a printer engine. This avoids failure of image output due to overrun, while reducing the capacity of the image memory.