Direct conversion receiver comprising DC offset reducing system and transmitter
    1.
    发明公开
    Direct conversion receiver comprising DC offset reducing system and transmitter 有权
    Dire ender ender ger ender ender ender ender ender ender ender ender ender ender ender ender ender

    公开(公告)号:EP1478097A1

    公开(公告)日:2004-11-17

    申请号:EP04252518.8

    申请日:2004-04-29

    CPC classification number: H04B1/30 H03D3/008

    Abstract: In a telecommunications transmitter and receiver two IQ-mixers are operated in 180 degrees phase shift. In both the transmitter and receiver, an input signal is coupled to each IQ-mixer and the output signal of the mixers are combined so as to cancel unwanted error components in each individual output signal. In the transmitter, residual carrier signals are cancelled, and in the receiver, DC-offsets are cancelled. In both, the wanted signals are added, doubling the amplitude of the resultant output signal leading to four times more output power and improved dynamic range.

    Abstract translation: 在电信发射机和接收机中,两个IQ混合器在180度相移中工作。 在发射机和接收机中,输入信号耦合到每个IQ混频器,并且混合器的输出信号被组合以消除每个单独的输出信号中的不期望的误差分量。 在发射机中,残留载波信号被取消,在接收机中取消直流偏移。 在两者中,所需的信号被加入,使得所得输出信号的幅度加倍,导致输出功率的四倍和改善的动态范围。

    Channel-selective amplifier with tunable filter
    2.
    发明公开
    Channel-selective amplifier with tunable filter 有权
    过滤器(KanalselektiverVerstärkermit abstimmbarem)

    公开(公告)号:EP1255353A1

    公开(公告)日:2002-11-06

    申请号:EP01303935.9

    申请日:2001-04-30

    CPC classification number: H03G3/3042 H04W52/52

    Abstract: The application relates to transmission power control in transmission systems, in particular mobile radio systems. One object of the invention is to indicate a way of guaranteeing, compared with the state of the art, improved, in particular dynamic, control of transmission powers within predefinable emitted interference requirements with, in particular, increased efficiency and reduced power consumption. For this purpose, the invention provides for the filtering of an amplified transmission signal to be divided up between a narrower-band tunable pre-filter (4) and a broadband post-filter (10). To perform this operation, a signal-amplification circuit is proposed which comprises a tunable filter (4) which is connected downstream of a power amplifier (2).

    Abstract translation: 该应用涉及传输系统中的传输功率控制,特别是移动无线电系统。 本发明的一个目的是指出与现有技术相比,在预定的发射干扰要求(特别是提高的效率和降低的功率消耗)内改进的,特别是动态的控制发射功率的方式。 为此,本发明提供了在窄带可调谐预滤波器(4)和宽带后置滤波器(10)之间进行分频的放大的发送信号的滤波。 为了执行该操作,提出了一种信号放大电路,其包括连接在功率放大器(2)的下游的可调谐滤波器(4)。

    Transmitting/receiving apparatus for electromagnetic signals
    3.
    发明公开
    Transmitting/receiving apparatus for electromagnetic signals 审中-公开
    Sende- /Empfangsgerätfürelektromagnetische Signale

    公开(公告)号:EP1100212A1

    公开(公告)日:2001-05-16

    申请号:EP99308912.7

    申请日:1999-11-09

    Inventor: Ritter, Kai-Uwe

    CPC classification number: H04B7/04 H04B1/713

    Abstract: The invention relates to a transmitting/receiving apparatus for electromagnetic signals which combines signals transmitted by four transmitters by means of two hybrid and/or broadband combiners. The broadband combiners comprise two filters which define frequency ranges within which the respectively assigned transmitters can transmit. The filters cover in particular a plurality of frequency channels, with the result that synthesizer hopping is possible.
    The invention furthermore relates to a method for combined synthesizer and baseband hopping which is particularly advantageous for the apparatus according to the invention in order to ensure effective channel utilization.

    Abstract translation: 本发明涉及一种用于电磁信号的发射/接收装置,其组合由四个发射机通过两个混合和/或宽带组合器发射的信号。 宽带组合器包括限定频率范围的两个滤波器,其中分配的发射机可以传输。 滤波器特别地覆盖多个频率信道,结果是合成器跳变是可能的。 本发明还涉及一种用于组合合成器和基带跳频的方法,其对于根据本发明的装置特别有利,以确保有效的信道利用。

    Volume control for an alert generator
    6.
    发明公开
    Volume control for an alert generator 审中-公开
    报警音量控制

    公开(公告)号:EP1047258A3

    公开(公告)日:2003-09-10

    申请号:EP00303045.9

    申请日:2000-04-11

    Inventor: Ritter, Kai-Uwe

    CPC classification number: H04M19/04 H04M19/042

    Abstract: In an apparatus for controlling the volume of a device's user alert sound based on an analysis of the device's environment, the device (20) emits a signal and receives a resulting reflected signal. A processor (25) measures characteristics such as the amplitude and/or delay of the reflected signal to determine the type of environment in which the communication device (20) is located. The volume of the alert sound is then adjusted based on the type of environment indicted by the characteristics of the reflected signal. For example, if the characteristics indicate a closed environment such as a brief case, the volume is adjusted to a high level, and if the characteristics indicate an open environment such as a desk top, the volume is adjusted to a low level.

    Transmission and reception device for base stations
    7.
    发明公开
    Transmission and reception device for base stations 有权
    Senden- und EmpfangseinrichtungfürBasisstationen

    公开(公告)号:EP1182786A1

    公开(公告)日:2002-02-27

    申请号:EP00307166.9

    申请日:2000-08-21

    CPC classification number: H04B1/0458

    Abstract: Transmission and reception device for a mobile radio base station comprising a plurality of transmission and reception units and hence a plurality of carriers, the transmission and reception units being accommodated in push-in modules and each having a modulator (10), a channel frequency device (19) and an output stage (20). At least some of the push-in modules comprise two full transmission and reception units having a first and a second transmission branch (1, 2). The two transmission branches (1, 2) are connected to a transmission connection (4) via an incorporated hybrid combiner (3) in order to provide two mutually combined carriers in a first mode of operation for relatively high capacity. In a second mode of operation for high output power, the two transmission branches (1, 2) are additionally connected to one another by means of an internal changeover device (25, 26, 27) such that the same transmitted signal is routed at least via the output stages (20) of both transmission branches (1, 2).

    Abstract translation: 包括多个发送和接收单元以及多个载波的移动无线电基站的发送和接收装置,所述发送和接收单元被容纳在推入模块中,并且每个具有调制器(10),频道频率设备 (19)和输出级(20)。 至少一些推入模块包括具有第一和第二传输分支(1,2)的两个完整传输和接收单元。 两个传输分支(1,2)经由并入的混合组合器(3)连接到传输连接(4),以便在相对高容量的第一操作模式中提供两个相互组合的载波。 在用于高输出功率的第二操作模式中,两个传输分支(1,2)通过内部转换装置(25,26,27)彼此附加地彼此连接,使得相同的发送信号至少路由 通过两个传输分支(1,2)的输出级(20)。

    Screen on circuit board, and process for its production
    8.
    发明公开
    Screen on circuit board, and process for its production 审中-公开
    Schirm auf Leiterplatte und dessen Herstellungsverfahren

    公开(公告)号:EP1087651A1

    公开(公告)日:2001-03-28

    申请号:EP99307467.3

    申请日:1999-09-21

    CPC classification number: H05K9/0016

    Abstract: There is described a screen-circuit board assembly, comprising: a circuit board (10) having slots (11) with edges (12) and through which insertion portions (21) of the screen (20) extend; at least one spring clamp (1) allocated to the slots (11) and forming a slot cavity space (7), wherein the at least one spring clamp comprises supporting legs (2) and clamp side-walls (3). Each supporting leg (2) is soldered to an associated edge (12) of the slot to which it is allocated. At least one of the clamp side-walls (3) carries at least one spring member (5) in order to clamp and electrically connect the respective insertion portion (21) of the screen (20) to the circuit board (10). A process for the production of such screen-circuit boards is also disclosed.

    Abstract translation: 描述了一种屏幕电路板组件,包括:具有边缘(12)的槽(11)并且屏幕(20)的插入部分(21)延伸穿过的电路板) 至少一个弹簧夹(1)分配给所述狭槽(11)并形成槽空腔(7),其中所述至少一个弹簧夹包括支撑腿(2)和夹紧侧壁(3)。 每个支撑腿(2)被焊接到其被分配到的槽的相关边缘(12)上。 夹持侧壁(3)中的至少一个承载至少一个弹簧构件(5),以便将屏幕(20)的相应插入部分(21)夹紧并电连接到电路板(10)。 还公开了用于生产这种屏幕电路板的方法。

    Volume control for an alert generator
    9.
    发明公开
    Volume control for an alert generator 审中-公开
    Weckerlautstärkeregelung

    公开(公告)号:EP1047258A2

    公开(公告)日:2000-10-25

    申请号:EP00303045.9

    申请日:2000-04-11

    Inventor: Ritter, Kai-Uwe

    CPC classification number: H04M19/04 H04M19/042

    Abstract: In an apparatus for controlling the volume of a device's user alert sound based on an analysis of the device's environment, the device (20) emits a signal and receives a resulting reflected signal. A processor (25) measures characteristics such as the amplitude and/or delay of the reflected signal to determine the type of environment in which the communication device (20) is located. The volume of the alert sound is then adjusted based on the type of environment indicted by the characteristics of the reflected signal. For example, if the characteristics indicate a closed environment such as a brief case, the volume is adjusted to a high level, and if the characteristics indicate an open environment such as a desk top, the volume is adjusted to a low level.

    Abstract translation: 处理器(25)可以包括微处理器(11)或数字信号处理器(DSP)(12),并且当电话(10)接收到呼叫时,微处理器指示DSP分析环境以确定电话是否在 一个公文包,口袋。 然后微处理器产生一个控制信号,激活振铃器(19)以提醒用户并确保振铃器是可听见的。 DSP产生由扬声器(15)作为声信号发射的数字测量信号,而反射响应信号由麦克风(18)接收,转换为模拟信号并馈送到DSP。 音量控制装置包括独立声明。

    Power amplification by using different fixed power supply signals for the amplifier
    10.
    发明公开
    Power amplification by using different fixed power supply signals for the amplifier 审中-公开
    功率放大与不同的固定功率信号到放大器

    公开(公告)号:EP1381154A1

    公开(公告)日:2004-01-14

    申请号:EP02254808.5

    申请日:2002-07-09

    CPC classification number: H03F1/025 H03F1/0227 H03F1/0261 H03F2200/511

    Abstract: The invention proposes a power amplification under variable envelope excitation, wherein an original input signal at least is converted into a phase modulated signal part, at least the phase modulated signal part is fed to an input port of an amplifier unit, the input signal is amplified by dynamically selecting a fixed power supply (PSU 1,PSU 2,PSU 3) for the amplifier unit, and wherein the amplitude content of the original input signal is reconstructed by changing dependent on the respective provided power supply a further controllable input of the amplifier unit, in particular the input power level (P in ) and/or the biasing voltage (U g ) and/or biasing current at the control input of the amplifier unit, during said step of amplifying.

    Abstract translation: 本发明提出了在可变包络激励的功率放大,原始输入信号至少被转换成一个相位调制信号部分的worin,至少,所述相位调制信号部分是在放大器单元的输入口供给于,输入信号被放大 通过动态地选择一个固定电源(PSU 1个PSU 2 PSU 3)用于放大器单元,和worin原始输入信号的振幅内容通过改变依赖于respectivement提供电源放大器的另外的可控输入重构 单元,特别是输入功率电平(PIN)和/或偏压电压(UG)和/或偏置电流在放大器单元的控制输入端,在放大的所述步骤。

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