Multi-channel transmitter
    31.
    发明公开
    Multi-channel transmitter 有权
    多通道发射器

    公开(公告)号:EP1968218A1

    公开(公告)日:2008-09-10

    申请号:EP07004752.7

    申请日:2007-03-08

    Inventor: Borremans, Marc

    CPC classification number: H04H60/80 H04H20/22 H04H20/26 H04H20/62 H04H2201/13

    Abstract: A radio transmission method and a radio transmitter device for radio transmission of an audio signal from an audio device to a radio receiver is described, wherein an audio signal is received from the audio device; and an RF signal is transmitted simultaneously which is modulated with the audio signal on each of a set of at least two different RF channels. Within each of the transmitted RF signals, information identifying at least the other RF channels in the set of RF channels is included.

    Improved security device and terminal and method for communication between them
    32.
    发明公开
    Improved security device and terminal and method for communication between them 审中-公开
    Verbesserte Sicherheitsvorrichtung und Terminal und Verfahren zur Kommunikation zwischen ihnen

    公开(公告)号:EP1610273A1

    公开(公告)日:2005-12-28

    申请号:EP04447151.4

    申请日:2004-06-25

    Inventor: Fontaine, Paul

    Abstract: The present invention is related to a device arranged for authorising the use of a selected function among at least two functions provided on the device. The device comprises storing means (1) for a function-specific voice pattern linked to the selected function and comparing means (2) arranged for comparing an external input signal with the function-specific voice pattern.

    Abstract translation: 本发明涉及一种设备,用于在设备上提供的至少两个功能中授权使用所选择的功能。 该装置包括用于与所选择的功能相链接的功能特定语音模式的存储装置(1)和用于将外部输入信号与功能特定语音模式进行比较的比较装置(2)。

    Apparatus and method with reduced complexity for per tone equalization in a multicarrier system
    33.
    发明公开
    Apparatus and method with reduced complexity for per tone equalization in a multicarrier system 有权
    设备和方法,在多载波系统中用于均衡降低Complexität针对每个载波

    公开(公告)号:EP1545083A1

    公开(公告)日:2005-06-22

    申请号:EP03079137.0

    申请日:2003-12-19

    Inventor: Pisoni, Fabio

    CPC classification number: H04L27/2647 H04L25/03159 H04L2025/03414

    Abstract: An equalizer for a multi carrier signal for carrying out equalization adapted to each carrier or group of carriers, Fourier transforms the multi carrier signal, and obtains difference terms of the multi carrier signal. Both are input to an adaptive filter, to output equalized signals, wherein decimation is applied to at least some of the difference terms input to the filter. This is notable for enabling the complexity to be reduced for a given performance level. In particular since only non-zero filter taps need to be stored and updated, coefficient memory and coefficient calculation capacity can be reduced. Another way to reduce complexity involves measuring noise for at least some of the carriers, and dynamically adapting the size of the filter on a per carrier basis according to global optimizion euristic algorithms which adapt this filter size based on the comparison between this noise and an optimal performance figure achieved in a previous ISI-ICI free measurement phase.

    Abstract translation: 用于进行均衡angepasst到载波的每个载波或一组用于多载波信号的均衡器,傅立叶变换的多载波信号,并且获得多载波信号的差异方面。 既被输入到在自适应滤波器,来输出均衡的信号,抽取worin被施加到的至少一些输入到滤波器的差术语。 这是值得注意的使降低复杂性对于一个给定的性能水平。 特别是因为仅非零滤波器抽头需要被存储和更新,系数存储器和系数计算容量可被减小。 降低复杂性的另一种方法涉及到测量噪声对于至少一些所述载波,并动态地适应滤波器的大小以每个载波为基础雅丁全球optimizion euristic算法基于该噪声和最佳地之间的比较这个滤波器的尺寸相适应 性能数据在之前的ISI ICI免费测量阶段实现。

    Local oscillator for harmonic image-rejection mixers
    34.
    发明公开
    Local oscillator for harmonic image-rejection mixers 审中-公开
    Lokaloszillatorfüreinen harmonischen Mischer mitUnterdrückungder Spiegelfrequenz

    公开(公告)号:EP1545006A1

    公开(公告)日:2005-06-22

    申请号:EP03447297.7

    申请日:2003-12-19

    Abstract: The present invention is related to a device for generating signals spaced π/X rad apart (X being an integer) comprising

    at least one delay cell (15) with a delay approximately corresponding to a phase shift π/X rad, and
    at least one phase detection system (16) inputting at least two signals (10) delayed by the delay cell(s) (15) and generating a feedback signal (18) to at least one delay cell (15).

    Abstract translation: 本发明涉及一种用于产生间隔π/ X辐射(X为整数)的信号的装置,该信号包括至少一个延迟单元(15),延迟单元(15)的延迟大致对应于相移pi / Xrad,以及至少一个 相位检测系统(16)输入由延迟单元(15)延迟的至少两个信号(10),并向至少一个延迟单元(15)产生反馈信号(18)。

    Delay-compensated fractional-N frequency synthesizer
    35.
    发明公开
    Delay-compensated fractional-N frequency synthesizer 有权
    频繁合成器

    公开(公告)号:EP1434352A1

    公开(公告)日:2004-06-30

    申请号:EP02447268.0

    申请日:2002-12-23

    CPC classification number: H03L7/081 H03L7/0893 H03L7/1976

    Abstract: The present invention is related to a Phase-Locked Loop with

    a main loop comprising a Phase Frequency Detector (1), a Main Charge Pump (2), a Main Loop Filter (3), a Voltage Controlled Oscillator (4) and a Frequency Divider (5), coupled in series,
    a calibration loop coupled to said Phase Frequency Detector (1) and comprising a Calibration Charge Pump (6) and a Calibration Loop Filter (8'),
    a Control Logic (9) arranged to control said Frequency Divider (5) and to receive a control input signal, and
    a Reference Frequency Signal (10) applied to said Phase Frequency Detector (PFD)(1) and to said Control Logic (9) and a calibration signal (11) applied to said calibration loop,
    wherein the main loop comprises a delay generator (14) controlled by said Control Logic (9) and arranged to receive correction signals from said calibration loop and to send an output signal to said Phase Frequency Detector (1).

    Abstract translation: 本发明涉及一种具有主回路的锁相环,该主回路包括相位检波器(1),主电荷泵(2),主回路滤波器(3),压控振荡器(4)和频率 分频器(5),串联耦合的校准环路,耦合到所述相位检波器(1)并且包括校准电荷泵(6)和校准环路滤波器(8'),控制逻辑(9) 分频器(5)并且接收控制输入信号,以及施加到所述相位频率检测器(PFD)(1)和所述控制逻辑(9)的参考频率信号(10)和施加到 所述校准环路,其中所述主回路包括由所述控制逻辑(9)控制并被布置成从所述校准回路接收校正信号并向所述相位检波器(1)发送输出信号的延迟发生器(14)。

    Coexistence of wireless personal area network and wireless local area network with reduced interference
    37.
    发明公开
    Coexistence of wireless personal area network and wireless local area network with reduced interference 审中-公开
    Koexistenz von drahtlosen PAN- und LAN-Netzwerken mit reduzierter Interferenz

    公开(公告)号:EP2071886A1

    公开(公告)日:2009-06-17

    申请号:EP08165954.2

    申请日:2008-10-06

    CPC classification number: H04W48/18 H04W88/06

    Abstract: A first wireless transceiver apparatus for operating in a part of the RF spectrum which is shared with a co-located second wireless transceiver apparatus, the first wireless transceiver apparatus comprising:
    a wireless transceiver unit;
    an arbitration interface for interfacing with an arbitration entity which arbitrates access to the shared part of the RF spectrum between the first wireless transceiver apparatus and the second wireless transceiver apparatus;
    wherein the arbitration interface is adapted to signal time periods when the wireless transceiver unit is operationaI or requests to be operational;
    and wherein the arbitration interface is adapted to signal data about the first wireless transceiver apparatus during other time periods.

    Abstract translation: 一种第一无线收发器装置,用于在与共同位置的第二无线收发器装置共享的RF频谱的一部分中操作,所述第一无线收发器装置包括:无线收发器单元; 仲裁接口,用于与仲裁实体进行接口,所述仲裁实体仲裁对所述第一无线收发器设备和所述第二无线收发器设备之间的RF频谱的共享部分的访问; 其中所述仲裁接口适于在所述无线收发器单元操作或请求可操作时发出信号时间段; 并且其中所述仲裁接口适于在其他时间段期间发送关于所述第一无线收发器装置的数据。

    Bluetooth stack processor with QOS
    38.
    发明公开
    Bluetooth stack processor with QOS 审中-公开
    蓝牙标准工程师QOS

    公开(公告)号:EP2066085A1

    公开(公告)日:2009-06-03

    申请号:EP07076030.1

    申请日:2007-11-29

    Abstract: A baseband processor (20) for a Bluetooth device (80) processes packets according to a protocol stack, and uses a Bluetooth host controller interface (30) to receive packets having given priorities, from a higher protocol level or levels. Packet buffers (B1-Bn) are used to buffer the received packets, and the processor reorders the buffered packets according to their priorities, to output a prioritized stream of packets suitable for transmission by a radio part. By prioritising after the HCI interface, rather than before it, the QOS queues can be effectively located at a lower level in the stack. This means the decision made about the order of transmission of the packets, can take place later, meaning a higher probability that a high priority packet can "pass" queues of lower priority packets, and reach the air interface sooner. The reordering can involve a multiplexer (200) arranged to multiplex packets from multiplee packet buffers according to their priorities.

    Abstract translation: 用于蓝牙设备(80)的基带处理器(20)根据协议栈处理分组,并且使用蓝牙主机控制器接口(30)从较高的协议级别或级别接收具有给定优先级的分组。 分组缓冲器(B1-Bn)用于缓冲接收到的分组,并且处理器根据其优先级重新排序缓冲的分组,以输出适合于由无线电部分传输的分组的优先级流。 通过在HCI接口之后的优先次序,而不是在之前,QOS队列可以有效地位于堆栈中的较低级别。 这意味着关于分组传输顺序的决定可以在稍后进行,这意味着高优先级分组可以“较低优先级分组的队列”的可能性更高,并且更快到达空中接口。 重新排序可以涉及多路复用器(200),其被布置为根据它们的优先级复用来自多个分组缓冲器的分组。

    Crest factor reduction in multicarrier transmission systems
    40.
    发明公开
    Crest factor reduction in multicarrier transmission systems 有权
    多载波传输系统中波峰因数的减少

    公开(公告)号:EP1876782A1

    公开(公告)日:2008-01-09

    申请号:EP06013716.3

    申请日:2006-07-03

    Inventor: Wernaers, Yves

    CPC classification number: H04L27/2614

    Abstract: A multicarrier transmission system uses a set of carriers spaced apart in frequency with a number of bits being assigned to each carrier. A transmitter (3) has a mapper (14) which maps a data signal to a parallel set of constellation values. A frequency domain-to-time domain transform stage (18) converts the set of modulated carriers to a time-domain signal. A peak detector detects when the time-domain signal exceeds a predetermined criterion. A constellation modifier (27) modifies the constellation value of at least one of the carriers to reduce the crest factor of the transmitted signal. A carrier is selected for modifying on the basis of a number of bits allocated to that carrier. The constellation modifier (27) can select an alternative constellation value by an iterative method or by calculation. The constellation modifier (27) can operate entirely in the time-domain.

    Abstract translation: 多载波传输系统使用频率间隔开的一组载波,其中多个比特被分配给每个载波。 发射机(3)具有映射器(14),其将数据信号映射为并行星座值集。 频域到时域变换级(18)将该组调制载波转换为时域信号。 峰值检测器检测时域信号何时超过预定标准。 星座修改器(27)修改至少一个载波的星座值以减小发送信号的波峰因数。 根据分配给该载波的多个比特选择一个载波进行修改。 星座修改器(27)可以通过迭代方法或通过计算来选择替代星座值。 星座修改器(27)可以完全在时域中操作。

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