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:
May. 31, 2011
Filed:
May. 01, 2008
Masashi Naito, Kodaira, JP;
Masashi Naito, Kodaira, JP;
Hitachi Kokusai Electric Inc., Tokyo, JP;
Abstract
Communication equipment transmits signals of an OFDM system while effectively suppressing peaks in the transmission. OFDM signals are formed and peaks of the OFDM signals are suppressed. The OFDM signals of which the peaks are suppressed are converted into intermediate-frequency signals, and peaks of the intermediate-frequency signals are suppressed. Additionally, the intermediate-frequency signals of which the peaks are suppressed are synthesized and the signals having been synthesized are amplified. The peaks of the OFDM signals are suppressed with the synthesized value of the absolute values of the OFDM signals as an estimated peak value, and the peaks of the intermediate-frequency signals are suppressed with the absolute value of the result of synthesizing the intermediate-frequency signals as an estimated peak value.