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:
Jul. 09, 2013
Filed:
Jan. 29, 2010
Yoshito Shimizu, Osaka, JP;
Noriaki Saito, Tokyo, JP;
Kiyomichi Araki, Saitama, JP;
Takafumi Nasu, Tokushima, JP;
Yoshito Shimizu, Osaka, JP;
Noriaki Saito, Tokyo, JP;
Kiyomichi Araki, Saitama, JP;
Takafumi Nasu, Tokushima, JP;
Panasonic Corporation, Osaka, JP;
Abstract
Disclosed is a harmonic rejection mixer that makes it possible to suppress high-frequency response, while keeping the number of gm elements from increasing. In a harmonic rejection mixer that regulates the waveform of an output signal by mixing outputs of multiple mixers that are connected in parallel with the latter stage of multiple gm elements, some of the gm elements are shared by I phase and Q phase by using a control signal with a duty ratio of less than 50% to drive at least some of the mixers, and then using the period in which the I-phase mixers are inactive to activate the Q-phase mixers.