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:
Apr. 24, 2007
Filed:
Jun. 29, 2004
Takahiro Totani, Osaka, JP;
Katsumi Terada, Kyoto, JP;
Hiroki Koba, Osaka, JP;
Kazunobu Oketani, Kyoto, JP;
Takahiro Totani, Osaka, JP;
Katsumi Terada, Kyoto, JP;
Hiroki Koba, Osaka, JP;
Kazunobu Oketani, Kyoto, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A video signal processing circuit inputs a video signal to perform processing such as frequency conversion as well as processing for generating data representing the APL (Average Picture Level) of a frame video for each frame period. A microcomputer functions as a dimmer arithmetic block to perform processing for generating dimmer data upon receipt of APL data, and functions as a lamp driver control block to perform processing for sending out a dimmer command to a lamp driver. The lamp driver receives the dimmer command, to control an amount of light emitted from a light source (a lamp).