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    • 1. 发明申请
    • DEMODULATOR AND RECEIVER USING IT
    • 使用它的调理器和接收器
    • WO03049276A9
    • 2003-09-25
    • PCT/JP0110471
    • 2001-11-30
    • SONY CORPSONY INTERNAT EUROP G M B HABE MASAYOSHISASHO NOBORUKRUPEZEVIC DRAGANBRANKOVIC VESELINRATNI MOHAMED
    • ABE MASAYOSHISASHO NOBORUKRUPEZEVIC DRAGANBRANKOVIC VESELINRATNI MOHAMED
    • H03D3/00H04B1/30H03D9/00H03D5/00
    • H03D3/007H04B1/30
    • A demodulator which has broad band characteristics, is low in distortion and power consumption and small in characteristic variations with respect to variations in temperature and changes with time, and can be improved in demodulating performance; and which comprises a 5-port junction circuit that receives a reception signal and a local signal to generate three signals having phase difference, and detects respective signal levels (amplification components) of these signals to obtain three power detection signals (base band signals) (P1, P2, P3), a first multiplier for multiplying a detection signal (P1) by a factor (A1) for offsetting the square components of a interference signal and a local signal, a second multiplier for multiplying a detection signal (P2) by a factor (A2) for offsetting the square components of a interference signal and a local signal, a first subtractor for subtracting the first multiplication result from the the detection signal (P2), a second subtractor for subtracting the second multiplication result from the detection signal (P3), and a multi-port signal/IQ signal conversion circuit for converting output signals from the first and second subtractors into an in-phase signal (I) and an orthogonal signal (Q) that are demodulation signals.
    • 具有宽带特性的解调器的失真和功耗低,相对于温度变化和时间变化的特性变化小,并且可以提高解调性能; 并且其包括接收接收信号的5端口结电路和产生具有相位差的三个信号的本地信号,并且检测这些信号的各个信号电平(放大分量)以获得三个功率检测信号(基带信号)( P1,P2,P3),用于将检测信号(P1)乘以因子(A1)以抵消干扰信号和本地信号的平方分量的第一乘法器,用于将检测信号(P2)乘以 用于抵消干扰信号和本地信号的平方分量的因子(A2),用于从检测信号(P2)中减去第一相乘结果的第一减法器,用于从检测信号中减去第二相乘结果的第二减法器 (P3)和用于将来自第一和第二减法器的输出信号转换为同相信号(I)和正交信号(I)的多端口信号/ IQ信号转换电路 Q)是解调信号。
    • 3. 发明申请
    • METHOD AND SYSTEM FOR DOWN-CONVERTING AN ELECTROMAGNETIC SIGNAL, AND TRANSFORMS FOR SAME
    • 用于下变频电磁信号的方法和系统及其变换
    • WO00064042A2
    • 2000-10-26
    • PCT/US2000/009911
    • 2000-04-14
    • H03D1/00H03D3/00H03D7/00H03D9/00H04B1/26
    • H03D7/00
    • Methods, systems, and apparatuses, and combinations and subcombinations thereof, for down-converting an electromagnetic (EM) signal are described herein. Briefly stated, in embodiments the invention operates by receiving an EM signal and recursively operating on approximate half cycles (1/2, 1 , 2 , etc.) of the carrier signal. The recursive operations can be performed at a sub-harmonic rate of the carrier signal. The invention accumulates the results of the recursive operations and uses the accumulated results to form a down-converted signal. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.
    • 本文描述了用于电磁(EM)信号的下变频的方法,系统和装置,以及其组合和子组合。 简而言之,在实施例中,本发明通过接收EM信号并且在载波信号的近似半周期(1/2,1,2等)上递归地操作)来操作。 可以以载波信号的次谐波速率执行递归运算。 本发明积累了递归运算的结果,并使用累加结果形成降频转换信号。 在一个实施例中,EM信号被下变频到中频(IF)信号。 在另一个实施例中,EM信号被下变频为基带信息信号。 在另一个实施例中,EM信号是频率调制(FM)信号,其被下变频成非FM信号,例如相位调制(PM)信号或幅度调制(AM)信号。
    • 4. 发明申请
    • METHOD FOR CONVERTING OPTICAL MULTIPLEX SYSTEM CHANNEL SIGNAL MODULATION INTO SUBCARRIER FREQUENCIES
    • 程序实施关于SUBCARRIERFREQUENZEN的光学多路复用系统信号调制噪声渠道
    • WO98040981A1
    • 1998-09-17
    • PCT/DE1998/000709
    • 1998-03-11
    • H04B10/04H03D9/00H04B10/06H04B10/142H04B10/152H04J14/00H04J14/02
    • H04J14/0298H03D9/00
    • According to the invention, several laser diodes (1) or other suitable optical sources of varying emission wavelengths ( lambda k) are impressed with various useful signals in the base band or in the intermediate frequency range and the wavelength channels (xk) thus formed are brought together. An external high threshold frequency modulator (4) is included the wavelength multiplex system. Said modulator is controlled according to the desired microwave or millimeter wave subcarrier frequency (fsub) or subharmonic thereof so that modulation of all wavelength channels (xk) is converted upwards. The individual wavelength channels (xk) are wavelength selectably outcoupled to photodiodes (8) or other direct receivers which deliver the selected modulated useful signal to the subcarrier (Pn,sub).
    • 激光二极管(1)或不同的发射波长(拉姆达k)的其他合适的光源的多个被印在基带或中频范围中的有用信号,并且由此形成的波长信道(XK)被合并。 在这种波分复用系统,外部调制器(4)被引入与由它驱动的期望微波或毫米波的副​​载波频率(一个fsub)或分谐波的高截止频率,使得所有的波长信道(XK)的调制上变频 , 各个波长信道(XK)的波长选择性地耦合到任何光电二极管(8)或其它直接接收机,调制有用信号,所选择的电源到副载波(PN,子)。
    • 7. 发明申请
    • DEVICE FOR FREQUENCY DOWN-CONVERTING USING UNDERSAMLING, AND METHOD
    • 使用下变频的频率下变频的装置和方法
    • WO0064042A3
    • 2001-10-25
    • PCT/US0009911
    • 2000-04-14
    • PARKERVISION INC
    • SORRELLS DAVID FCOOK ROBERT WLOOKE RICHARD CBULTMAN MICHAEL JMOSES CHARLEY D JRRAWLINS GREGORY SRAWLINS MICHAEL W
    • H03D1/00H03D3/00H03D7/00H03D9/00H04B1/26
    • H03D7/00
    • Methods, systems, and apparatuses, and combinations and subcombinations thereof, for down-converting an electromagnetic (EM) signal are described herein. Briefly stated, in embodiments the invention operates by receiving an EM signal and recursively operating on approximate half cycles (1/2, 1 , 2 , etc.) of the carrier signal. The recursive operations can be performed at a sub-harmonic rate of the carrier signal. The invention accumulates the results of the recursive operations and uses the accumulated results to form a down-converted signal. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.
    • 本文描述了用于电磁(EM)信号的下变频的方法,系统和装置,以及其组合和子组合。 简而言之,在实施例中,本发明通过接收EM信号并且在载波信号的近似半周期(1/2,1,2等)上递归地操作)来操作。 可以以载波信号的次谐波速率执行递归运算。 本发明积累了递归运算的结果,并使用累加结果形成降频转换信号。 在一个实施例中,EM信号被下变频到中频(IF)信号。 在另一个实施例中,EM信号被下变频为基带信息信号。 在另一个实施例中,EM信号是频率调制(FM)信号,其被下变频成非FM信号,例如相位调制(PM)信号或幅度调制(AM)信号。
    • 9. 发明申请
    • 復調器およびそれを用いた受信機
    • 使用它的调理器和接收器
    • WO2003049276A1
    • 2003-06-12
    • PCT/JP2001/010471
    • 2001-11-30
    • ソニー株式会社ソニーインターナショナル阿部雅美佐生 登クルペゼビッチ ドラガンブランコビッチ ヴェセリンラトニ モハメド
    • 阿部雅美佐生 登クルペゼビッチ ドラガンブランコビッチ ヴェセリンラトニ モハメド
    • H03D9/00
    • H03D3/007H04B1/30
    • A demodulator which has broad band characteristics, is low in distortion and power consumption and small in characteristic variations with respect to variations in temperature and changes with time, and can be improved in demodulating performance; and which comprises a 5−port junction circuit that receives a reception signal and a local signal to generate three signals having phase difference, and detects respective signal levels (amplification components) of these signals to obtain three power detection signals (base band signals) (P1, P2, P3), a first multiplier for multiplying a detection signal (P1) by a factor (A1) for offsetting the square components of a interference signal and a local signal, a second multiplier for multiplying a detection signal (P2) by a factor (A2) for offsetting the square components of a interference signal and a local signal, a first subtractor for subtracting the first multiplication result from the the detection signal (P2), a second subtractor for subtracting the second multiplication result from the detection signal (P3), and a multi−port signal/IQ signal conversion circuit for converting output signals from the first and second subtractors into an in−phase signal (I) and an orthogonal signal (Q) that are demodulation signals.
    • 具有宽带特性的解调器的失真和功耗低,相对于温度变化和时间变化的特性变化小,并且可以提高解调性能; 并且其包括接收接收信号的5端口结电路和产生具有相位差的三个信号的本地信号,并且检测这些信号的各个信号电平(放大分量)以获得三个功率检测信号(基带信号)( P1,P2,P3),用于将检测信号(P1)乘以因子(A1)以抵消干扰信号和本地信号的平方分量的第一乘法器,用于将检测信号(P2)乘以 用于抵消干扰信号和本地信号的平方分量的因子(A2),用于从检测信号(P2)中减去第一相乘结果的第一减法器,用于从检测信号中减去第二相乘结果的第二减法器 (P3)和多端口信号/ IQ信号转换电路,用于将来自第一和第二减法器的输出信号转换为同相信号(I)和正交信号 gnal(Q)是解调信号。
    • 10. 发明申请
    • METHOD AND SYSTEM FOR DOWN-CONVERTING AN ELECTROMAGNETIC SIGNAL
    • 用于下变频电磁信号的方法和系统
    • WO0024117A9
    • 2002-11-07
    • PCT/US9924299
    • 1999-10-20
    • PARKER VISION INC
    • SORRELLS DAVID FBULTMAN MICHAEL JCOOK ROBERT WLOOKE RICHARD CMOSES CHARLEY D JRRAWLINS GREGORY SRAWLINS MICHAEL W
    • H03D3/00H03C1/62H03C7/00H03D7/00H03D7/12H03D9/00H04B1/26H04B1/30H04B7/12H04L27/00
    • H04B7/12H03C1/62H03D7/00
    • Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal are described herein. Briefly stated, such methods, systems, and apparatuses operate by receiving an EM signal and an aliasing signal having an aliasing rate. The EM signal is aliased according to the aliasing signal to down-convert the EM signal. The term aliasing, as used herein, refers to both down converting an EM signal by under-sampling the EM signal at an aliasing rate, and down-converting an EM signal by transferring energy from the EM signal at the aliasing rate. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a demodulated baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.
    • 这里描述了通过使EM信号进行混叠来降低电磁(EM)信号的转换的方法,系统和装置。 简要地说,这样的方法,系统和装置通过接收具有混叠速率的EM信号和混叠信号来操作。 EM信号根据混叠信号进行混叠,以降低EM信号的转换。 如本文所使用的,术语混叠是指通过以混叠速率对EM信号进行欠采样以及以混叠速率从EM信号传输能量来对EM信号进行下变频来对EM信号进行下变频。 在一个实施例中,EM信号被下变频到中频(IF)信号。 在另一实施例中,EM信号被下变频为解调的基带信息信号。 在另一个实施例中,EM信号是频率调制(FM)信号,其被下变频成非FM信号,例如相位调制(PM)信号或幅度调制(AM)信号。