Title:
【発明の名称】周波数オフセット影像排除
Document Type and Number:
Japanese Patent JP2002519919
Kind Code:
A
Abstract:
An approach for providing image rejection during signal down conversion involves phase shifting quadrature signals at a frequency other than the down converted center frequency. One or more phase shifters coupled to a summer/subtractor provide forty five (45) degrees and one hundred thirty five (135) degrees of phase shift with respect to two quadrature input signals. The one or more phase shifters perform the phase shifts of the quadrature input signals at a frequency other than the center frequency of the down-converted signal.
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Inventors:
Lysi, Mohindra
Application Number:
JP2000557540A
Publication Date:
July 02, 2002
Filing Date:
June 24, 1999
Export Citation:
Assignee:
Konin Krekka Philips Electronics NV
International Classes:
H03D7/18; H03D7/16; (IPC1-7): H03D7/18
Attorney, Agent or Firm:
Kazuo Sato (3 others)