Title: Digital frequency converter
Application Number: 200410097393 Application Date: 2004.11.29
Publication Number: 1622449 Publication Date: 2005.06.01
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H03D7/00
Applicant(s) Name: Samsung Electronics Co., Ltd. Address:
Inventor(s) Name: Kishi Takahiko
Attorney & Agent: lin yuqing xie lina
Abstract:
    A digital frequency converter is provided that maintains a high power efficiency in an EER scheme despite the inclusion of digital signal processing. An inputted modulated signal is converted into phase information and amplitude information of a polar coordinate type. The amplitude information is outputted as amplitude information of the digital frequency converter. Meanwhile, phase change of a frequency f 2, which is outputted from an accumulator, corresponding to lower
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