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    • 122. 发明申请
    • MIXER ARRANGEMENT
    • 混合装置
    • WO2011070013A2
    • 2011-06-16
    • PCT/EP2010/069070
    • 2010-12-07
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)SUNDSTRÖM, LarsSTRANDBERG, RolandDIN, Imad ud
    • SUNDSTRÖM, LarsSTRANDBERG, RolandDIN, Imad ud
    • H03D7/16
    • H03D7/165H03D7/1441H03D7/1458H03D7/1483H03D2200/006
    • A mixer arrangement (1) for generating an analog output signal of the mixer arrangement (1) by mixing an analog input signal of the mixer arrangement (1) with a discrete-time mixing signal. The mixer arrangement comprises a plurality of unit elements (10-1,...,10- N )..Each unit element (10-1,...,10- N ) is adapted to be in an enabled mode in a first state of an enable signal supplied to the unit element, and in a disabled mode in a second state of the enable signal Furthermore, each unit element is adapted to generate the output signal of the unit element (10-1,...,10- N ) such that the output signal of the unit clement (10-1,...,10- N ) is based on the analog input signal of the mixer arrangement (1) in the enabled mode but not m the disabled mode. The unit elements (10-1,...,10- N ) are connected for generating a common output signal as the sum of the output signals from the unit elements (10-1,...,10- N ). Furthermore, the mixer arrangement (1) is adapted to generate the analog output signal of the mixer arrangement (1) based on the common output signal. A control unit (30) is adapted to select the number of unit elements (10-1,...,10- N ) to be enabled when the control signal adopts a given value based on a parameter set of one or more control parameters, such as the ratio f s /f M between the sampling frequency f s and the frecυeney f M of the discrete time mixing signal and/or a phase shift of the discrete-time mixing signal. A corresponding method is also disclosed.
    • 一种用于通过将混合器装置(1)的模拟输入信号与离散时间混合信号混合来产生混频器装置(1)的模拟输出信号的混频器装置(1)。 混频器装置包括多个单元元件(10-1,...,10-N)。每个单元元件(10-1,...,10-N)适于处于使能模式 提供给单元的使能信号的第一状态,以及在使能信号的第二状态中的禁用模式。此外,每个单位元件适于生成单位元件(10-1,...,...)的输出信号, 10-N),使得单元元件(10-1,...,10-N)的输出信号基于在使能模式中的混频器装置(1)的模拟输入信号,但不是在禁用模式 。 单元元件(10-1,...,10-N)被连接用于产生公共输出信号作为来自单元元件(10-1,...,10-N)的输出信号之和。 此外,混频器装置(1)适于基于公共输出信号产生混频器装置(1)的模拟输出信号。 控制单元(30)适于在控制信号基于一个或多个控制参数的参数集合采用给定值时选择要启动的单元元素(10-1,...,10-N)的数量 ,例如离散时间混合信号的采样频率fs和频率f M之间的比fs / f M和/或离散时间混合信号的相移。 还公开了相应的方法。
    • 123. 发明申请
    • PASSIVE MIXER WITH REDUCED SECOND ORDER INTERMODULATION
    • 被动混合器具有减少的第二个订单间隔
    • WO2011047703A1
    • 2011-04-28
    • PCT/EP2009/007609
    • 2009-10-23
    • ST-ERICSSON ABST-ERICSSON SAMATTISSON, SvenANDREANI, PietroMASTANTUONO, Daniele
    • MATTISSON, SvenANDREANI, PietroMASTANTUONO, Daniele
    • H03D1/04H03D3/04H03D7/14H03D7/12H03D7/16
    • H03D1/04H03D7/12H03D7/1458H03D7/1466H03D7/165H03D2200/0088
    • The present disclosure generally relates to the field of receiver structures in radio communication systems and more specifically to passive mixers in the receiver structure and to a technique for converting a first signal having a first frequency into a second signal having a second frequency by using a third signal having a third frequency. A passive mixer for converting a first signal having a first frequency into a second signal having a second frequency by using a third signal having a third frequency comprises a cancellation component 220 for generating a first cancellation signal for cancelling second order intermodulation components by superimposing the first signal weighted by a cancellation value on the third signal; and a mixing component 231 having a first terminal 232 for receiving the first signal, a second terminal 234 for outputting the second signal, and a third terminal 236 for receiving the first cancellation signal, wherein the mixing component 231 is adapted to provide the second signal as output at the second terminal 234 by mixing the first signal provided as input at the first terminal 232 and the first cancellation signal provided as input at the third terminal 236.
    • 本公开通常涉及无线电通信系统中的接收机结构领域,更具体地涉及接收机结构中的无源混频器以及通过使用第三频率将具有第一频率的第一信号转换成具有第二频率的第二信号的技术 信号具有第三频率。 一种无源混频器,用于通过使用具有第三频率的第三信号将具有第一频率的第一信号转换为具有第二频率的第二信号包括消除部件220,用于产生用于通过将第一频率叠加的第二次互调分量 信号由第三信号上的抵消值加权; 以及混合部件231,其具有用于接收第一信号的第一端子232,用于输出第二信号的第二端子234和用于接收第一抵消信号的第三端子236,其中混合部件231适于提供第二信号 作为第二端子234处的输出,通过混合在第一端子232处作为输入提供的第一信号和在第三端子236处作为输入提供的第一抵消信号。
    • 124. 发明申请
    • MIXER-TRANSCONDUCTANCE INTERFACE WITH SELECTABLE MIXER AND TRANCONDUCTANCE UNITS
    • 具有可选择的混合器和电阻单元的混合器 - 交叉接口
    • WO2011003094A1
    • 2011-01-06
    • PCT/US2010/040960
    • 2010-07-02
    • QUALCOMM IncorporatedCHOKSI, Ojas M.RANJAN, Mahim
    • CHOKSI, Ojas M.RANJAN, Mahim
    • H03D7/16
    • H03D7/165
    • Techniques for providing an efficient interface between a mixer block and a transconductance (Gm) block. In an exemplary embodiment, the output currents of at least two unit cells of the transconductance block are conductively coupled together, and coupled to the mixer block using a single conductive path. For a differential signal, the conductive path may include two conductive leads. Within the mixer block, the single conductive path may be fanned out to at least two unit cells of the mixer block. At least one Gm unit cell may be selectively enabled or disabled to control the gain setting of the mixer-transconductance block. The techniques may further be applied to transceiver architectures supporting in-phase and quadrature mixing, as well as multi-mode and/or multi-band operation.
    • 在混合器块和跨导(Gm)块之间提供有效接口的技术。 在示例性实施例中,跨导块的至少两个单位单元的输出电流被导电耦合在一起,并且使用单个导电路径耦合到混频器块。 对于差分信号,导电路径可以包括两个导电引线。 在混合器块内,单个导电路径可以扇形到混合器块的至少两个单元电池。 可以选择性地使能或禁用至少一个Gm单位单元来控制混频器 - 跨导块的增益设置。 这些技术可以进一步应用于支持同相和正交混合以及多模式和/或多频带操作的收发器架构。
    • 125. 发明申请
    • WIDEBAND PERSONAL-RADIO RECORDER
    • 宽带个人无线电记录仪
    • WO2010121262A1
    • 2010-10-21
    • PCT/US2010/031631
    • 2010-04-19
    • MAXLINEAR, INC.WALSH, BrendanSZASZ, StefanREDDY, Madhukar
    • WALSH, BrendanSZASZ, StefanREDDY, Madhukar
    • G06F17/00
    • H03D7/165G11B27/28H04B1/0007H04H40/18H04H60/13H04H60/27H04H60/37H04H2201/60H04L27/3818H04N21/458
    • Methods and apparatuses for concurrently recording multiple radio channels. A recorder includes a wideband tuner having a complex mixer for converting a received wideband RF signal to a complex signal that is then digitized. A digital front end module applies a number of complex down-mixers to the digital complex signal to generate the multiple radio channels in the baseband. Each one of the multiple radio channels in the baseband is further filtered, decimated and demodulated. A digital signal processing unit encodes each demodulated channel according to an audio compression format and stores the then encoded audio content to a storage unit. An RBDS decoder parses radio data service information associated with the stored audio content. The radio data service information is stored in a first section of the storage unit while the encoded audio content is stored in a second section of the storage unit.
    • 同时记录多个无线电频道的方法和装置。 记录器包括具有用于将接收到的宽带RF信号转换成然后数字化的复信号的复合混频器的宽带调谐器。 数字前端模块将数个复数下混频器应用于数字复合信号,以在基带中产生多个无线电信道。 基带中的多个无线电信道中的每一个进一步被滤波,抽取和解调。 数字信号处理单元根据音频压缩格式对每个解调的信道进行编码,并将所编码的音频内容存储到存储单元。 RBDS解码器解析与所存储的音频内容相关联的无线电数据服务信息。 无线电数据服务信息被存储在存储单元的第一部分中,而编码的音频内容被存储在存储单元的第二部分中。
    • 129. 发明申请
    • UPCONVERTER AND DOWNCONVERTER WITH SWITCHED TRANSCONDUCTANCE AND LO MASKING
    • 带开关传导和LO屏蔽的UPC上转换器和下变频器
    • WO2010014989A2
    • 2010-02-04
    • PCT/US2009052587
    • 2009-08-03
    • QUALCOMM INCASURI BHUSHAN SHANTI
    • ASURI BHUSHAN SHANTI
    • H03D7/14H03D7/16
    • H03D7/166H03D7/1433H03D7/1441H03D7/1458H03D7/165H03D2200/0084
    • An upconverter and a downconverter having good performance are described. In one design, the upconverter includes first, second, and third sets of transistors. The first set of transistors receives baseband signals and provides an upconverted signal. The second set of transistors switches the transconductance of the transistors in the first set based on transmit (TX) local oscillator (LO) signals. The third set of transistors enables and disables the transistors in the second set based on a TX VCO signal. In one design, the downconverter includes first, second, and third sets of transistors. The first set of transistors receives a modulated signal and provides baseband signals. The second set of transistors switches the transconductance of the transistors in the first set based on receive (RX) LO signals. The third set of transistors enables and disables the transistors in the second set based on an RX VCO signal.
    • 描述了具有良好性能的上变频器和下变频器。 在一种设计中,上变频器包括第一,第二和第三组晶体管。 第一组晶体管接收基带信号并提供上变频信号。 第二组晶体管基于发射(TX)本地振荡器(LO)信号来切换第一组中的晶体管的跨导。 第三组晶体管基于TX VCO信号启用和禁用第二组中的晶体管。 在一种设计中,下变频器包括第一,第二和第三组晶体管。 第一组晶体管接收调制信号并提供基带信号。 第二组晶体管基于接收(RX)LO信号来切换第一组中的晶体管的跨导。 第三组晶体管基于RX VCO信号启用和禁用第二组中的晶体管。