RECEPTION DEVICE AND ELECTRONIC DEVICE USING THE SAME

Title:

RECEPTION DEVICE AND ELECTRONIC DEVICE USING THE SAME

Document Type and Number:

WIPO Patent Application WO/2007/125947

Kind Code:

A1

Abstract:

In an image rejection mixer of a reception device (14), when a signal of a first radio frequency band is inputted to an input terminal (16), a first mixer (17) and a second mixer (18) convert the inputted signal of a first radio frequency band into a signal of a first intermediate frequency band by using a first local signal from a local signal oscillation unit (19) and a filter circuit (20) attenuates an image disturbance signal existing in the first intermediate frequency band. When a signal of a second radio frequency band is inputted to the input terminal (16), the first mixer (17) and the second mixer (18) convert the inputted signal of the second radio frequency band into a signal of the second intermediate frequency band by using a second local signal from the local signal oscillation unit and the filter circuit (20) attenuates an image disturbance signal existing in the second intermediate frequency band. A part of the first intermediate frequency band is overlapped with a part of the second intermediate frequency band.

Inventors:

OKADA EIJI
OZEKI HIROAKI
UMEDA TAKASHI

Application Number:

PCT/JP2007/058927

Publication Date:

November 08, 2007

Filing Date:

April 25, 2007

Export Citation:

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Assignee:

MATSUSHITA ELECTRIC IND CO LTD (JP)
OKADA EIJI
OZEKI HIROAKI
UMEDA TAKASHI

International Classes:

H04B1/26; H04B1/10

Foreign References:

JP2001186039A	2001-07-06
JP2000115013A	2000-04-21
JP2005517341A	2005-06-09
JP2003298356A	2003-10-17

Other References: