发明申请
- 专利标题: APPARATUS AND METHOD FOR DEMODULATING AN INPUT SIGNAL
- 专利标题(中): 用于解调输入信号的装置和方法
-
申请号: US13578421申请日: 2010-03-10
-
公开(公告)号: US20120313697A1公开(公告)日: 2012-12-13
- 发明人: Sadik Hafizovic , Flavio Heer , Stefan Koch , Niels Haandbaek
- 申请人: Sadik Hafizovic , Flavio Heer , Stefan Koch , Niels Haandbaek
- 国际申请: PCT/CH10/00066 WO 20100310
- 主分类号: H03D3/06
- IPC分类号: H03D3/06
摘要:
The invention relates to an apparatus (300; 400; 500; 600) for demodulating an input signal (306; 402; 520), comprising a frequency detector (302; 403; 502.1, . . . , 502. N; 603) for tracking a frequency (f2; fd1, . . . , fdN) of the input signal (306; 402; 520), an oscillator (304; 410; 505; 605, 606) and a mixer (305; 408; 507; 608, 609), wherein the input signal (306; 402; 520) and an output signal (307; 409) of the oscillator (304; 410; 505; 605, 606) constitute the incoming signals for the mixer (305; 408; 507; 608, 609) and the output signal of the mixer (305; 408; 507; 608, 609) constitutes the demodulated input signal, wherein an arithmetic unit (303; 404; 504; 604) is arranged downstream of the frequency detector (302; 403; 502.1, . . . , 502. N; 603) and upstream of the oscillator (304; 410; 505; 605, 606), wherein the tracked frequency (f2; fd1, . . . , fdN) of the input signal (306; 402; 520) and a predefined second frequency (f1; faux1, . . . , fauxM) constitute the incoming signals of the arithmetic unit (303; 404; 504; 604) and the arithmetic unit (303; 404; 504; 604) is designed such that it computes a control signal (f3; f4; fo1, . . . , foP) for the oscillator (304; 410; 505; 605, 606) from the tracked frequency (f2; fd1, . . . , fdN) of the input signal (306; 402; 520) and the predefined second frequency (f1; faux1, . . . , fauxM) with the output signal (307; 409) of the oscillator (304; 410; 505; 605, 606) depending on the control signal (f3; f4; fo1, . . . , foP). The invention furthermore relates to a method for demodulating an input signal (306; 402; 520) with such an apparatus (300; 400; 500; 600).
公开/授权文献
- US08841964B2 Apparatus and method for demodulating an input signal 公开/授权日:2014-09-23
信息查询
IPC分类: