Processing

Please wait...

Settings

Settings

Goto Application

1. CN103843255 - Signal reception multi-tuner system and corresponding method

Office
China
Application Number 201280048752.4
Application Date 25.09.2012
Publication Number 103843255
Publication Date 04.06.2014
Grant Number 103843255
Grant Date 28.09.2016
Publication Kind B
IPC
H04B 1/10
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
06Receivers
10Means associated with receiver for limiting or suppressing noise or interference
CPC
H04B 1/109
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
06Receivers
10Means associated with receiver for limiting or suppressing noise or interference
109by improving strong signal performance of the receiver when strong unwanted signals are present at the receiver input
H04J 1/12
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
1Frequency-division multiplex systems
02Details
12Arrangements for reducing cross-talk between channels
Applicants THOMSON LICENSING S.A.
Inventors LOUCHKOFF MARC
FOUQUE CLAUDE
PESIN ANTHONY
Agents lu xiaozhang
Priority Data 1158928 04.10.2011 FR
Title
(EN) Signal reception multi-tuner system and corresponding method
(ZH) 信号接收多调谐器系统以及相应的方法
Abstract
(EN) Multi-tuner reception system comprises at least a first tuner (101) and a second tuner (102), the first tuner (101) being adapted to translate a frequency of a first received signal into a first translated frequency, the first tuner (101) comprising a first local oscillator (1016) operating at a first local oscillator frequency, the second tuner (102) being adapted to translate a frequency of a second received signal into a second translated frequency, the second tuner (102) comprising a second local oscillator (1026) operating at a second local oscillator frequency, the system being characterized in that the second local oscillator frequency is equal to the sum of the first local oscillator frequency and a continually time variable offset frequency, a demodulator being adapted to demodulate a signal from the second tuner (102).
(ZH) 多调谐器接收系统至少包含第一调谐器(101)以及第二调谐器(102),第一调谐器(101)适用于将第一接收信号的频率转换为第一转换频率,第一调谐器(101)包含以第一局部振荡器频率运行的第一局部振荡器(1016),第二调谐器(102)适用于将第二接收信号的频率转换为第二转换频率,第二调谐器(102)包含以第二局部振荡器频率运行的第二局部振荡器(1026),该系统的特征在于,第二局部振荡器频率等于第一局部振荡器频率与持续随时间可变的偏置频率的和数;以及解调器,适用于解调来自第二调谐器(102)的信号。