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:
Nov. 13, 2007
Filed:
Apr. 27, 2004
Yuuji Takahashi, Kanagawa-ken, JP;
Noriyuki Kitamura, Kanagawa-ken, JP;
Katsuyuki Kobayashi, Kanagawa-ken, JP;
Kazutoshi Mita, Kanagawa-ken, JP;
Hirokazu Otake, Kanagawa-ken, JP;
Keiichi Shimizu, Kanagawa-ken, JP;
Yuuji Takahashi, Kanagawa-ken, JP;
Noriyuki Kitamura, Kanagawa-ken, JP;
Katsuyuki Kobayashi, Kanagawa-ken, JP;
Kazutoshi Mita, Kanagawa-ken, JP;
Hirokazu Otake, Kanagawa-ken, JP;
Keiichi Shimizu, Kanagawa-ken, JP;
Toshiba Lighting & Technology Corporation, Tokyo, JP;
Abstract
A receiver includes a light-receiving portion which receives an infrared remote control signal from a transmitter, an A/D converter which converts a signal received by the light-receiving portion into a digital signal at a frequency much higher than a carrier wave, and a digital filter having the band-pass function of a pass band containing the carrier band of the infrared remote control signal for the digital signal output from the A/D converter. The digital filter reduces the influence of variations in argon spectrum intensity over time.