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    • 3. 发明申请
    • CIRCUIT ARRANGEMENT COMPRISING A LOGARITHMIC TRANSFER FUNCTION
    • 包含对数转移函数的电路布置
    • WO1997033366A2
    • 1997-09-12
    • PCT/IB1997000200
    • 1997-03-05
    • PHILIPS ELECTRONICS N.V.PHILIPS PATENTVERWALTUNG GMBHPHILIPS NORDEN AB
    • PHILIPS ELECTRONICS N.V.PHILIPS PATENTVERWALTUNG GMBHPHILIPS NORDEN ABDICK, Burkhard
    • H03G07/06
    • H03G7/001G06G7/24
    • A description is given of a circuit arrangement comprising a logarithmic transfer function between an input signal and an output signal in a predefined level range of the input signal, comprising a pair of amplifier elements forming a first differential amplifier, the main current paths of which amplifier elements are connected, on the one hand, to each other and to a first current source and on the other hand, to working impedances subdivided by respective taps, and the control terminals of which amplifier elements are supplied with the input signal; a pair of amplifier elements forming a second differential amplifier, the main current paths of which amplifier elements are connected, on the one hand, to each other and to a second current source and on the other hand, to the connections of the main current paths of the first differential amplifier and the working impedances, and whose control terminals are cross-connected to the taps of the working impedances; and a rectifier stage whose input is connected to the connections of the main current paths of the differential amplifiers and the working impedances and whose output signal is tapped from its output. This circuit arrangement has a very low power consumption and low circuit complexity.
    • 给出了包括在输入信号和输入信号的预定电平范围内的输出信号之间的对数传递函数的电路装置的描述,包括形成第一差分放大器的一对放大器元件,其放大器的主电流路径 元件一方面彼此连接并连接到第一电流源,另一方面连接到由各个抽头细分的工作阻抗,并且其放大器元件被提供有输入信号的控制端; 形成第二差分放大器的一对放大器元件,放大器元件连接的主电流路径一方面彼此连接到第二电流源,另一方面与主电流路径的连接 的第一差分放大器和工作阻抗,并且其控制端子与工作阻抗的抽头交叉连接; 整流器级的输入端连接到差分放大器的主电流路径和工作阻抗的连接,并且其输出信号从其输出中抽出。 该电路布置具有非常低的功耗和低电路复杂度。
    • 8. 发明申请
    • DEVICE FOR ACTUATING A CONTROL MEMBER
    • 用于执行控制构件的装置
    • WO1996024761A1
    • 1996-08-15
    • PCT/IB1996000104
    • 1996-02-09
    • PHILIPS ELECTRONICS N.V.PHILIPS NORDEN ABPHILIPS PATENTVERWALTUNG GMBHBOLTE, EkkehardBERTRAM, LeoWENDT, Matthias
    • PHILIPS ELECTRONICS N.V.PHILIPS NORDEN ABPHILIPS PATENTVERWALTUNG GMBH
    • F02D11/10
    • F02D11/106F02D2009/0294G01B7/30
    • The invention relates to a device for actuating a control member, particularly a throttle valve (4) in a gas conduit (3), such as for example an intake of an internal-combustion engine, which valve is pivotable into operating positions by means of a valve shaft (5), an actuator (11a) being provided, which actuator consists of a rotor body, serving as an actuator body (9) and arranged on the valve shaft (5), and of an electrically energisable excitation section (11), which cooperates with said rotor body, and a position sensor (20) detecting angular positions of the valve shaft (5), which sensor comprises an angular-position generator (9, 22) and an angular-position detector (23), which are associated with one another and of which one of the two is mounted so as to be rotatable, the valve shaft (5) itself being constructed to carry the angular-position generator (9, 22) or angular-position detector (23), and the associated part of the position sensor (20) being stationarily mounted on the housing (2) of the device.
    • 本发明涉及一种用于致动控制构件的装置,特别是气体导管(3)中的节流阀(4),例如内燃机的入口,该阀可以通过以下方式枢转到操作位置: 一个阀轴(5),一个致动器(11a),该致动器由一个用作致动器主体(9)并设置在阀轴(5)上的转子体和一个可激励的励磁部分 ),其与所述转子主体配合;以及位置传感器(20),其检测所述阀轴(5)的角位置,所述传感器包括角位置发生器(9,22)和角位置检测器(23) 它们彼此相关联并且其中一个安装成可旋转,阀轴(5)本身构造成承载角位置发生器(9,22)或角位置检测器(23), ,并且位置传感器(20)的相关部分被固定地安装在t上 他装置(2)的设备。
    • 10. 发明申请
    • A MULTIPLE ACCESS DIGITAL TRANSMISSION SYSTEM AND A RADIO BASE STATION AND A RECEIVER FOR USE IN SUCH A SYSTEM
    • 多个访问数字传输系统和无线电台站以及在这种系统中使用的接收机
    • WO1995024086A2
    • 1995-09-08
    • PCT/IB1995000115
    • 1995-02-23
    • PHILIPS ELECTRONICS N.V.PHILIPS NORDEN ABPHILIPS PATENTVERWALTUNG GMBHTHIELECKE, JornGRANZOW, Wolfgang
    • PHILIPS ELECTRONICS N.V.PHILIPS NORDEN ABPHILIPS PATENTVERWALTUNG GMBH
    • H04L00/00
    • H04B1/71072H04B1/7107H04B1/711
    • In CDMA systems (1) with time-variant multipath transmission channels, such as mobile radio systems, receivers are used that apply multipath diversity techniques so as to counteract fading. In a known CDMA system, L-tap RAKE receivers (20) are used of which taps are adjusted on the basis of channel estimation means (61) that estimates multipath delays ( tau 11, ..., tau 1L; tau N1, ..., tau NL) from the received signal (y), i.e. searchers are arranged for finding paths. In such a system inter-user and inter-path interference is not taken into account. As a result, it is difficult to detect yet unresolved paths. Especially, it is difficult or even impossible to detect weak users in a strong user environment. A CDMA system (1) is proposed comprising channel estimation means (64) having a channel model for estimating (ŷ) the received signal (y). An interference reduced signal (e) is formed from the received signal (y) and the estimated received signal (ŷ) and is applied to the searchers. In an embodiment the channel model is an adaptive linear combiner (70 ... 80) combining re-spread decision feedback signals (b) weighted by estimated complex amplitudes (A) of resolved paths. Because in the interference reduced signal strong users are no longer present, it is easier to find yet unresolved paths. From the interference reduced signal (e) weak users can be easily detected, thus increasing system capacity.
    • 在具有诸如移动无线电系统的时变多径传输信道的CDMA系统(1)中,使用接收机来应用多径分集技术以抵消衰落。 在已知的CDMA系统中,使用L抽头RAKE接收器(20),其基于估计多路径延迟(τ11,...,τ1 L;τN 1,...)的信道估计装置(61)调整哪些抽头。 ..,tau NL),即搜索者被安排用于寻找路径。 在这种系统中,不考虑用户间和路径间干扰。 因此,很难发现尚未解决的路径。 特别是,在强大的用户环境中检测弱用户是困难甚至不可能的。 提出了一种CDMA系统(1),其包括具有用于估计(ŷ)接收信号(y)的信道模型的信道估计装置(64)。 从接收信号(y)和估计的接收信号(ŷ)形成干扰消除信号(e),并将其应用于搜索者。 在一个实施例中,信道模型是组合由分解路径的估计复幅度(A)加权的再扩展判定反馈信号(b)的自适应线性组合器(70 ... 80)。 因为在干扰减少的信号强大的用户不再存在,更容易找到尚未解决的路径。 从干扰减少信号(e)可以轻易检测到弱用户,从而提高系统容量。