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:
Feb. 14, 2006
Filed:
Oct. 08, 2002
Taiji Kabayama, Tokyo, JP;
Motokuni Saeki, Tokyo, JP;
Takehiko Umeyama, Tokyo, JP;
Renesas Technology Corp., Tokyo, JP;
Abstract
An N-transistor switches a current of a first constant current source by a positive input pulse to generate an output pulse current where an overshoot and an undershoot appear. A P-transistor switches a current of a second constant current source by a negative correction pulse applied at timing of occurrence of the overshoot to generate a correction pulse current. Another N-transistor switches a current of a third constant current source by a positive correction pulse applied at timing of occurrence of the undershoot to generate a correction pulse current. These correction pulse currents are added to the output pulse current to obtain a current as a wavelength where the overshoot and undershoot are largely reduced.