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.

Date of Patent:
Jan. 22, 1991

Filed:

May. 22, 1989
Applicant:
Inventors:

Yoshinori Ikeda, Hira, JP;

Tadashi Yoshida, Ichikawa, JP;

Kimiyoshi Hayashi, Tokyo, JP;

Shunichi Abe, Kawasaki, JP;

Nobuo Matsuoka, Kawasaki, JP;

Mitsuo Akiyama, Higashi Murayama, JP;

Yoshinobu Mita, Kawasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358 75 ; 358456 ;
Abstract

A halftone image recording apparatus includes means for recording an image on a recording medium, inputting an image signal representative of an image which includes a plurality of density levels, generating a plurality of pulsed periodic signals having different widths of one period of the image signal, selecting at least one periodic signal with a preselected pulse width among a plurality of the periodic signals, combining the selected periodic signal with the image signal, and applying the combined signal to the recording means.


Find Patent Forward Citations

Quick Actions:

Ikeda, Yoshinori. (1991). Halftone image signal processing apparatus in which pixels of a dither (U.S. Patent No. 4987484). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4987484

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…