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:
Mar. 18, 2008
Filed:
Jun. 08, 2004
Takashi Iwami, Yamanashi-ken, JP;
Takashi Iwami, Yamanashi-ken, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
An apparatus for driving capacitive light emitting diodes which can be reduced in size. For supplying a capacitive light emitting diode with a driving pulse which varies the voltage with a predetermined amplitude through a driving line, the driving apparatus comprises a resonance current path including a capacitor, a first switching element for supplying the driving line with a current in accordance with charges accumulated on the capacitor when it is on, and a second switching element for grounding one electrode of the capacitor when it is on, thereby supplying the other electrode of the capacitor with a current in accordance with charges accumulated in the capacitive light emitting element through the driving line.