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:
Dec. 21, 1993
Filed:
Mar. 04, 1991
Haruo Yamamoto, Sennan, JP;
Akira Shimatani, Sakai, JP;
Hidechika Kumamoto, Sakai, JP;
Masaya Fujimoto, Kobe, JP;
Tsukasa Matsushita, Daito, JP;
Mita Industrial Co., Ltd., , JP;
Abstract
A laser beam controller comprises a basic pulse signal generating circuit, a delay circuit, a delay control circuit, a pulse generating circuit and a laser beam generator. The basic pulse signal generating circuit generates periodically occurring basic pulse signal. The delay circuit delays the basic pulse signal. The delay control circuit controls the delay time of the basic pulse in the delay circuit according to image data. The pulse generating circuit generates an output pulse having a width corresponding to the delay time of the basic pulse signal. The laser beam generator generates a laser beam for a duration corresponding to the width of the output pulse by said pulse generating circuit. According to the controller, any desired gradation of a pixel of the image is desirably produced.