Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hirokazu Otake0
Keiichi Shimizu0
Noriyuki Kitamura0
Yuuji Takahashi0
Katsuyuki Kobayashi0
Kazutoshi Mita0
Date of Patent
November 13, 2007
0Patent Application Number
108324480
Date Filed
April 27, 2004
0Patent Primary Examiner
Patent 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.
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