Title:
受信回路およびそのフィルタリング方法
Document Type and Number:
Japanese Patent JP5862658
Kind Code:
B2
Abstract:
A receiver circuit includes a first mixer that performs frequency conversion on a first signal containing a first frequency entered from outside to output the resulting frequency-converted first signal, and a first selector that selects one out of an output signal of the first mixer and a second signal containing a second frequency entered from outside. A filter removes a pre-set frequency band of the signal selected by the first selector, and a second selector selects between outputting the signal removed of the frequency band to outside and outputting the signal to a subsequent side circuit. A second mixer performs frequency conversion of the signal output from the second selector to output the resulting frequency-converted signal. The second mixer is the subsequent side circuit. The second frequency has a carrier frequency of a radio signal.
Inventors:
Masaki Foxzuka
Application Number:
JP2013507665A
Publication Date:
February 16, 2016
Filing Date:
March 28, 2012
Export Citation:
Assignee:
NEC
International Classes:
H04B1/26
Domestic Patent References:
| JPH11112382A | 1999-04-23 | |||
| JP2008116230A | 2008-05-22 | |||
| JP2001345727A | 2001-12-14 | |||
| JPH11112382A | 1999-04-23 | |||
| JP2008116230A | 2008-05-22 | |||
| JP2001345727A | 2001-12-14 |
Attorney, Agent or Firm:
Kato Asamichi