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. 10, 2015
Filed:
Sep. 18, 2013
Sony Corporation, Tokyo, JP;
Katsuhisa Daio, Kagoshima, JP;
Sony Corporation, Tokyo, JP;
Abstract
A driving device includes: a driving circuit configured to provide a drive current; a first detecting circuit; a second detecting circuit configured to detect a first reference current or a physical quantity corresponding thereto, as well as a second reference current or a physical quantity corresponding thereto; a first generating circuit configured to generate an additive voltage as a control voltage at a light-emission time of a light-emitting element, and further to generate a second voltage as a control voltage at a non-light-emission time of the light-emitting element; and a second generating circuit configured to generate a third reference current. The second detecting circuit has a first adder circuit that generates the first reference current by adding the second reference current and the third reference current with each other.