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:
Jun. 05, 2012
Filed:
Jul. 05, 2007
Mamoru Okazaki, Tenri, JP;
Kazumasa Kioi, Hiroshima, JP;
Akira Saito, Nara, JP;
Masayuki Natsumi, Hiroshima, JP;
Atsushi Sakai, Higashihiroshima, JP;
Mamoru Okazaki, Tenri, JP;
Kazumasa Kioi, Hiroshima, JP;
Akira Saito, Nara, JP;
Masayuki Natsumi, Hiroshima, JP;
Atsushi Sakai, Higashihiroshima, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
This demodulation device receives and demodulates a digital broadcast wave. This demodulation device includes an RF search control unit () and a GI search control unit (). The RF search control unit () determines whether or not there is a broadcast wave in a certain channel, in accordance with an intensity of a signal outputted from a tuner () for receiving a digital broadcast wave. The GI search control unit () determines whether or not the broadcast wave is digital, based on whether or not the signal outputted from the tuner () contains a guard interval. Thus, the demodulation device is capable of efficiently searching for a channel containing a digital broadcast wave.