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:
Dec. 06, 2011

Filed:

Oct. 01, 2009
Applicant:

Kazuhiko Fujiie, Kanagawa, JP;

Inventor:

Kazuhiko Fujiie, Kanagawa, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention realizes the emission of a high-output short-pulse beam and a reduction in power consumption. A laser control unit () of a short-pulse light-source device () raises a gate pulse (PG) of a gate signal (SG) supplied to a power supply circuit () in such a manner that the gate pulse (PG) rises only for the duration of an extremely short pulse width (T) to include the rise time of a generated pulse (PL) of a pulse signal (SL) supplied to a driving circuit (). In this way, necessary power can be supplied at the rise timing of the generated pulse (PL), and the power consumption (Pa) can be greatly reduced from the standard power consumption (Pb).


Find Patent Forward Citations

Loading…