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    • 3. 发明授权
    • Digital signal generator
    • 数字信号发生器
    • US08638174B2
    • 2014-01-28
    • US13116967
    • 2011-05-26
    • Nenad PavlovicJohannes Hubertus Antonius BrekelmansJan van Sinderen
    • Nenad PavlovicJohannes Hubertus Antonius BrekelmansJan van Sinderen
    • H03B27/00G06F1/04H04B1/10H04B1/16
    • G06F1/025
    • The invention relates to a digital signal generator for providing one or more phases of a local oscillator signal for use in digital to analogue converters and harmonic rejection mixers. Embodiments disclosed include a local oscillator signal generator (200) for a mixer of a radiofrequency receiver, the signal generator (200) comprising a bit sequence generator (201) having a plurality of parallel output lines (203), a digital signal generator (202) having a serial output line (204) and a plurality of input lines connected to respective output lines (203) of the bit sequence generator (201) and a clock signal input line (205), wherein the digital signal generator (202) is configured to provide an output bit sequence on the serial output line (204) at a rate given by a clock signal provided on the clock signal input line (205) and a sequence given by a sequence of bits from the bit sequence generator (201) on the plurality of input lines (203).
    • 本发明涉及用于提供用于数模转换器和谐波抑制混频器的本地振荡器信号的一个或多个相位的数字信号发生器。 所公开的实施例包括用于射频接收机的混频器的本地振荡器信号发生器(200),所述信号发生器(200)包括具有多个并行输出线(203)的位序发生器(201),数字信号发生器 )和连接到位序发生器(201)的相应输出线(203)的多条输入线和时钟信号输入线(205),其中数字信号发生器(202)是 被配置为以由在时钟信号输入线(205)上提供的时钟信号给出的速率和由位序列发生器(201)的位序列给出的序列在串行输出线(204)上提供输出比特序列, 在多个输入线(203)上。
    • 5. 发明申请
    • SIGNAL PROCESSING ARRANGEMENT
    • 信号处理装置
    • US20110115539A1
    • 2011-05-19
    • US13002818
    • 2009-07-07
    • Johannes Hubertus Antonius Brekelmans
    • Johannes Hubertus Antonius Brekelmans
    • H03H11/26
    • H03K23/54
    • A signal processing arrangement comprises a series of latches (XDL, L1, L2) arranged as a clocked delay line (CDL) having a data input and a data output that are coupled to each other so as to form an inverting loop. An enable circuit (ACDL) allows or prevents a latch (L2) in the series of latches from changing state depending on whether, one clock cycle ago, the latch concerned received a given binary value or the inverse of that given binary 5 value, respectively, from the preceding latch (L1) in the series of latches. Such a circuit configuration allows a low-cost frequency division by an odd number with relatively small duty cycle errors.
    • 信号处理装置包括被布置为具有数据输入的时钟延迟线(CDL)的一系列锁存器(XDL,L1,L2)和彼此耦合以形成反相环路的数据输出。 使能电路(ACDL)允许或防止一系列锁存器中的锁存器(L2)根据一个时钟周期之前的锁存器是否分别接收到给定的二进制值或者给定的二进制值5的反相来改变状态 ,从一系列闩锁中的先前锁存(L1)开始。 这种电路配置允许以相对小的占空比误差的低成本分频奇数。
    • 8. 发明授权
    • Current mirror
    • 电流镜
    • US07352235B2
    • 2008-04-01
    • US10548252
    • 2004-03-01
    • Hugo VeenstraGodefridus Adrianus Maria HurkxJohannes Hubertus Antonius BrekelmansDave Willem Van Goor
    • Hugo VeenstraGodefridus Adrianus Maria HurkxJohannes Hubertus Antonius BrekelmansDave Willem Van Goor
    • G05F1/10
    • G05F3/265
    • The present invention relates to Current mirror for generating a constant mirror ratio, comprising an output transistor (Tout) having a base, an emitter and a collector, wherein a current flowing through the collector of said output transistor (Tout) constitutes an output current (Iout) of said current mirror and the collector of said output transistor (Tout) is connectable to an output circuit, a buffer transistor having a base, an emitter and a collector, wherein the emitter of the buffer transistor is connected to the base of the output transistor, a buffer current source for providing a fixed buffer current, wherein said buffer current source is connected to the collector of the buffer transistor, and a buffer base voltage control means having an input connected to the base of the output transistor and an output connected to the base of the buffer transistor, wherein the base voltage control means is adapted to controlling a voltage at the base of the buffer transistor in response to a current at the input of the buffer base voltage control means.
    • 本发明涉及用于产生恒定镜面比例的电流镜,其包括具有基极,发射极和集电极的输出晶体管(T OUT),其中流过所述输出的集电极的电流 晶体管(T out out out)构成所述电流镜的输出电流(I OUT),并且所述输出晶体管的集电极(T out out)是 可连接到输出电路,具有基极,发射极和集电极的缓冲晶体管,其中缓冲晶体管的发射极连接到输出晶体管的基极,缓冲电流源用于提供固定的缓冲电流,其中所述缓冲器 电流源连接到缓冲晶体管的集电极,以及缓冲器基极电压控制装置,其具有连接到输出晶体管的基极的输入端和连接到缓冲晶体管的基极的输出,其中基极电压控制装置被适配 以控制电压 e缓冲晶体管的基极,响应于缓冲器基极电压控制装置的输入处的电流。
    • 10. 发明授权
    • Receiver having a gain-controllable stage
    • 接收机具有增益可控级
    • US08135375B2
    • 2012-03-13
    • US12065315
    • 2006-08-23
    • Johannes Hubertus Antonius Brekelmans
    • Johannes Hubertus Antonius Brekelmans
    • H04B1/16
    • H03G3/3052
    • A gain-controllable stage (CLN, A1, A2 . . . , A7, ACC) comprises a reactive signal divider (CLN) followed by an amplifier arrangement (A1, A2 . . . , A7, ACC). The reactive signal divider (CLN) may be in the form of, for example, a capacitive ladder network. The gain-controllable stage (CLN, A1, A2 . . . , A7, ACC) has a gain factor that depends on a signal division factor that the reactive signal divider (CLN) provides. The reactive signal divider (CLN) forms part of a filter (LC). The signal division factor is adjusted on the basis of a frequency (F) to which the receiver is tuned and a signal-strength indication (RS).
    • 增益可控级(CLN,A1,A2 ...,A7,ACC)包括一个无功信号分频器(CLN),后面是一个放大器装置(A1,A2 ... A7,ACC)。 无功信号分配器(CLN)可以是例如电容梯形网络的形式。 增益可控级(CLN,A1,A2 ... A7,ACC)具有取决于无功信号分频器(CLN)提供的信号分配因子的增益因子。 无功信号分频器(CLN)形成滤波器(LC)的一部分。 基于接收机调谐的频率(F)和信号强度指示(RS)来调整信号分配因子。