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    • 1. 发明申请
    • MULTI-MODE MODULATION APPARATUS
    • 多模式调制装置
    • WO2007069191A2
    • 2007-06-21
    • PCT/IB2006/054760
    • 2006-12-12
    • NXP B.V.VROMANS, JanDE JONG, Gerben, W.RUITENBURG, Leonardus, J., M.
    • VROMANS, JanDE JONG, Gerben, W.RUITENBURG, Leonardus, J., M.
    • H04L27/36
    • H04L27/366H03F1/0205H03F1/3211H03F1/3241H03F1/3288H03F3/217H03F3/24H03F3/45085H03F2200/351
    • The present invention relates to a multi-mode modulation apparatus and a method of modulating a carrier signal by a baseband signal in at least two modulation modes. The phase of the carrier signal is modulated in response to a first control signal derived from the baseband signal to obtain a first phase-modulated signal, and the phase of the carrier signal is additionally modulated in response to a second control signal derived from the baseband signal to obtain a second phase-modulated signal, wherein combination of the first and second phase-modulated signals is controlled to select one of the at least two modulation modes. Thereby, information of different components (e.g. phase and envelope) of the baseband signal can be phase-modulated and combined in a suitable manner, so that over- sampling and highly linear triangular or saw-tooth signals are no longer required. Moreover, the controlled combination provides a flexible multi-mode modulation scheme.
    • 本发明涉及一种多模调制装置和一种以至少两种调制模式通过基带信号调制载波信号的方法。 响应于从基带信号导出的第一控制信号来调制载波信号的相位以获得第一相位调制信号,并且响应于从基带导出的第二控制信号附加地调制载波信号的相位 信号以获得第二相位调制信号,其中控制第一和第二相位调制信号的组合以选择至少两个调制模式之一。 因此,基带信号的不同分量(例如相位和包络)的信息可以被相位调制并以适当的方式组合,使得不再需要过采样和高度线性的三角形或锯齿信号。 此外,受控组合提供灵活的多模式调制方案。
    • 3. 发明申请
    • ANALOG-TO-DIGITAL-CONVERTING AND SUPPRESSING SYSTEM
    • 模拟数字转换和抑制系统
    • WO2005039055A1
    • 2005-04-28
    • PCT/IB2004/052026
    • 2004-10-08
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.RUITENBURG, Leonardus, J., M.
    • RUITENBURG, Leonardus, J., M.
    • H03M1/06
    • H03M1/0626H03M1/12
    • Systems (20, 22) with analog-to-digital-converters (5), for use in receivers (30) comprising tuners (31) and channel decoders (32), comprise analog filters (1, 2) located before the analog-to-digital-converters (5). The analog filters (1, 2) at least partly suppress the analog wanted signal and the analog unwanted signal. Compensators (3, 4) compensate the digital output signal of the analog-to-digital-converters (5) for the at least partly suppressing of the analog wanted signal. As a result, the analog unwanted signal in an adjacent channel could now be suppressed better than before, at the cost of also partly suppressing the analog wanted signal in a wanted channel. The compensators (3, 4) restore the wanted signal.
    • 具有模数转换器(5)的系统(20,22),用于包括调谐器(31)和通道解码器(32)的接收器(30)中,包括模拟滤波器(1,2) 数字转换器(5)。 模拟滤波器(1,2)至少部分地抑制模拟有用信号和模拟不需要的信号。 补偿器(3,4)补偿模数转换器(5)的数字输出信号,用于至少部分地抑制模拟有用信号。 结果,现在可以比以前更好地抑制相邻信道中的模拟不需要信号,其代价是部分抑制所需信道中的模拟有用信号。 补偿器(3,4)恢复有用信号。
    • 4. 发明申请
    • THREE-PHASE MIXER-SYSTEM
    • 三相混合器系统
    • WO2004068699A1
    • 2004-08-12
    • PCT/IB2003/006097
    • 2003-12-18
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.RUITENBURG, Leonardus, J., M.
    • RUITENBURG, Leonardus, J., M.
    • H03D7/14
    • H03D7/14
    • Three-phase mixer-systems comprising at least three groups of mixers (1-4,5-8,9-12,30) for frequency translating signals are (basic idea) provided with balancing means (13-21,31) for suppressing certain mixing products with harmonics of the oscillator signal resulting from unbalance (insight). Said three groups of mixers (1-4,5-8,9-12) each comprise a group of switching transistors (1-3,5-7,9-11) and an amplifying transistor (4,8,12) coupled to said group of switching transistors (1-3,5-7,9-11) and are balanced by said balancing means (13-21) comprising per group of mixers (1-4,5-8,9-12) and per at least one switching transistor of said group of switching transistors (1-3,5-7,9-11) a further switching transistor (13-21). Said three groups of mixers (30) can also be balanced by a further group of mixers (31), with said group of mixers (30) receiving second signals (R,S,T) and first signals (r RF,s RF,t RF), with said further group of mixers (31) receiving inverted second signals (-R,-S,-T) and (inverted combinations or not of) said first signals (r RF,s RF,t RF), and with outputs of said group of mixers (30) and of said further group of mixers (31) being coupled to each other for generating combinations (sums or differences) of output signals.
    • 包括用于频率转换信号的至少三组混合器(1-4,5-8,9-12,30)的三相混合器系统是(基本思想),其具有用于抑制的平衡装置(13-21,31) 某些混合产品与由不平衡(见解)引起的振荡器信号的谐波。 所述三组混合器(1-4,5-8,9-12)各自包括一组开关晶体管(1-3,5-7,9-11)和放大晶体管(4,8,12),其耦合 到所述一组开关晶体管(1-3,5-7,9-11),并且由所述平衡装置(13-21)平衡,所述平衡装置包括每组混合器(1-4,5-8,9-12)和 所述开关晶体管组(1-3,5-7,9-11)中的至少一个开关晶体管是另一个开关晶体管(13-21)。 所述三组混频器(30)还可以由另一组混频器(31)平衡,所述混频器组(30)接收第二信号(R,S,T)和第一信号(r RF,s RF, 所述另一组混合器(31)接收反相第二信号(-R,-S,-T)和(反向组合或不反转)所述第一信号(r RF,s RF,t RF)和 所述混频器组(30)和所述另一组混频器(31)的输出端彼此耦合,以产生输出信号的组合(和或差)。