Invention Grant
US07751303B2 Demodulation circuit for use in receiver using if directing sampling scheme
失效
解调电路用于接收机使用,如果指示采样方案
- Patent Title: Demodulation circuit for use in receiver using if directing sampling scheme
- Patent Title (中): 解调电路用于接收机使用,如果指示采样方案
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Application No.: US11356028Application Date: 2006-02-17
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Publication No.: US07751303B2Publication Date: 2010-07-06
- Inventor: Shi-chang Rho , Kwang-chul Kim , Jeong-taek Lee
- Applicant: Shi-chang Rho , Kwang-chul Kim , Jeong-taek Lee
- Applicant Address: KR Gyeonggi-Do
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Gyeonggi-Do
- Agency: Sughrue Mion, PLLC
- Priority: KR10-2005-0013752 20050218
- Main IPC: H04B1/16
- IPC: H04B1/16

Abstract:
Disclosed is a demodulation circuit for demodulating an IF signal which is input via an antennal and then over-sampled at a sampling rate four times a frequency of a baseband signal, the demodulation circuit including a mixer for converting the IF signal down to a baseband signal using a coefficient corresponding to either sine values or cosine values, a DEMUX for dividing the down-converted baseband signal into a plurality of signals, and a PPF having a plurality of sub-filters for filtering the divided signals input from the DEMUX and a plurality of adders for operating the output signals of the sub-filters. As a result, the demodulation circuit can be realized in a small hardware size and is capable of reducing power consumption.
Public/Granted literature
- US20060209988A1 Demodulation circuit for use in receiver using if directing sampling scheme Public/Granted day:2006-09-21
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