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公开(公告)号：EP0997809A3
公开(公告)日：2004-02-25
申请号：EP99308204.9
申请日：1999-10-18
IPC分类号： G06F1/03
CPC分类号： G06F1/0321
摘要： A digital synthesizer (18) includes a memory (12) containing values representing amplitudes of a signal such as a sinewave, a digital/analog converter (14) for converting outputs from the memory into an analog signal, and a counter (10) for counting by a predetermined fixed increment, which operates at a high frequency to enable the generation of very precise frequency waveforms. The digital synthesizer has many practical applications including the generation of precise signals to extract information from input radio frequency signals, the obtaining of a precise frequency from a low-cost clock, and the use as a component of a FSK modulator to permit selection between signals of multiple frequencies without any phase discontinuity. Finally, the digital synthesizer can be used in combination with an 8-bit memory, to generate a 10-bit input to a digital-to-analog converter.
摘要翻译： 数字合成器（18）包括存储器（12），其包含表示诸如正弦波的信号的幅度的值，用于将来自存储器的输出转换为模拟信号的数字/模拟转换器（14），以及用于 以预定的固定增量进行计数，其以高频操作，以产生非常精确的频率波形。 数字合成器具有许多实际应用，包括产生精确信号以从输入射频信号中提取信息，从低成本时钟获得精确频率，以及用作FSK调制器的分量以允许在信号之间进行选择 的多个频率，没有任何相位不连续性。 最后，数字合成器可以与8位存储器组合使用，以产生一个10位输入到数模转换器。
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2.发明公开
公开(公告)号：EP1061758A1
公开(公告)日：2000-12-20
申请号：EP00304771.9
申请日：2000-06-06
IPC分类号： H04Q7/38
摘要： A base station (114) in a wireless communication system directs data of a particular type, such as digital image data, to a destination appropriate for the data type without the user having to specify the destination's telephone number. The destination appropriate for the data type can be specified in a profile (196) associated with the user. The profile (196) may be stored by the user's wireless service provider and accessed when the data is received. In this way, data of different types can be directed to various destinations, e.g. different servers, as specified in the profile. When the user initiates a data transmission, such as by operating a send key on a digital camera (126), the digital camera (126) (or mobile terminal to which it is connected) may transmit the data to the base station (114) in any of a number of ways. For example, it can use a conventional traffic channel using a predefined dialing code, e.g. "555" to signify that image data is being transmitted. Alternatively, either a so-called control channel or a channel dedicated to a particular data type can be used. Upon receiving the data, the base station (114) can determine the data type in any of a number of ways. For example, the base station (114) can infer the data type from either a) the predefined dialing code, b) the electronic serial number of the device transmitting the data, or c) from the fact the data was received on a channel dedicated to the particular type of data. Alternatively, the data can contain a label that explicitly identifies the data type. Directing data of a particular type to a destination appropriate for the data type without the user having to specify the destination's telephone number allows the user to transmit data to the destination without having to remember the destination's telephone number, or even take the time to dial the number.
摘要翻译： 无线通信系统中的基站（114）将特定类型的数据（诸如数字图像数据）引导到适合于数据类型的目的地，而用户不必指定目的地的电话号码。 可以在与用户相关联的配置文件（196）中指定适用于数据类型的目的地。 简档（196）可以由用户的无线服务提供商存储，并且在接收到数据时被访问。 以这种方式，不同类型的数据可以被引导到各种目的地，例如 不同的服务器，在配置文件中指定。 当用户通过操作数字照相机（126）上的发送键来启动数据传输时，数字照相机（或其所连接的移动终端）可将数据发送到基站（114） 以任何一种方式。 例如，它可以使用使用预定义拨号码的常规业务信道，例如。 “555”表示正在发送图像数据。 或者，可以使用所谓的控制信道或专用于特定数据类型的信道。 在接收到数据时，基站（114）可以以多种方式中的任何一种来确定数据类型。 例如，基站（114）可以从a）预定的拨号码，b）发送数据的装置的电子序列号，或c）从在专用信道上接收到的数据的事实来推断数据类型 到特定类型的数据。 或者，数据可以包含明确标识数据类型的标签。 将特定类型的数据定向到适合于数据类型的目的地，而不需要用户必须指定目的地的电话号码，允许用户将数据发送到目的地，而不必记住目的地的电话号码，或者甚至花时间拨打 数。
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3.发明授权A method and apparatus for reducing adjacent channel power in wireless communication systems 有权一种用于在无线通信系统中减少相邻信道功率的方法和装置
公开(公告)号：EP1085668B1
公开(公告)日：2010-06-02
申请号：EP00307643.7
申请日：2000-09-04
CPC分类号： H04L27/368 , H04B1/62
摘要： This invention relates to a method and apparatus for reducing adjacent channel power in wireless communication systems. More particularly, the present invention is directed to a system for digitally and adaptively pre-distorting (in 112) a signal that includes applying a correction to the signal before it is applied to the input of an amplifier (16) such that the correction is equal and opposite to anticipated distortion produced by the amplifier. Thus, the correction and the amplifier distortion cancel one another resulting in a system with an overall linear transfer characteristic. In these circumstances, the adjacent channel power is desirably reduced.
摘要翻译： 本发明涉及一种用于在无线通信系统中减少相邻信道功率的方法和设备。 更具体地，本发明涉及一种系统，用于数字化和自适应预失真（在112）的信号并包括之前将它应用到一个放大器的输入端施加一个校正信号（16）检测所做的校正是 相等且相反于由放大器产生的预期失真。 因此，校正与放大器的失真互相抵消与在全面的线性传递特性的系统得到的。 在合成的情况下，相邻信道功率理想地降低。
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公开(公告)号：EP0984556A3
公开(公告)日：2000-05-10
申请号：EP99306682.8
申请日：1999-08-23
IPC分类号： H03H17/02
CPC分类号： H03M1/0631 , G11B20/22 , H03H17/0261 , H03M1/0863
摘要： A glitch filter processes overlapping time sequences of an odd number, N, of potentially corrupted sampled data values to determine the central value for a sorted ordering of each set of N values present for each time interval, t i . This central value is taken as the output value for the current set of N input values ( i.e. for time interval, t i ). In the following time interval, t i + 1 , the oldest of the previous N samples is discarded and a new sample is added to the set. This process repeats for each time interval. In an illustrative hardware embodiment, a circuit, such as a FPLA, uses the above-described technique to eliminate glitches occurring in signals otherwise being processed. In an illustrative software embodiment, a processor executes a software routine or computer program to similarly evaluate and eliminate glitches imposed on desired signals.
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公开(公告)号：EP0984556A2
公开(公告)日：2000-03-08
申请号：EP99306682.8
申请日：1999-08-23
IPC分类号： H03H17/02
CPC分类号： H03M1/0631 , G11B20/22 , H03H17/0261 , H03M1/0863
摘要： A glitch filter processes overlapping time sequences of an odd number, N, of potentially corrupted sampled data values to determine the central value for a sorted ordering of each set of N values present for each time interval, t i . This central value is taken as the output value for the current set of N input values ( i.e. for time interval, t i ). In the following time interval, t i + 1 , the oldest of the previous N samples is discarded and a new sample is added to the set. This process repeats for each time interval. In an illustrative hardware embodiment, a circuit, such as a FPLA, uses the above-described technique to eliminate glitches occurring in signals otherwise being processed. In an illustrative software embodiment, a processor executes a software routine or computer program to similarly evaluate and eliminate glitches imposed on desired signals.
摘要翻译： 毛刺滤波器处理奇数N的潜在破坏的采样数据值的重叠时间序列，以确定每个时间间隔ti存在的每组N个值的排序顺序的中心值。 该中心值作为当前N个输入值集合的输出值（即时间间隔ti）。 在以下时间间隔中，ti + 1，丢弃先前N个样本中最早的样本，并将一个新样本添加到该集合中。 每个时间间隔重复此过程。 在说明性的硬件实施例中，诸如FPLA的电路使用上述技术来消除在另外被处理的信号中发生的毛刺。 在说明性软件实施例中，处理器执行软件程序或计算机程序以类似地评估和消除施加在期望信号上的毛刺。
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6.发明公开A method and apparatus for reducing adjacent channel power in wireless communication systems 有权一种用于在无线通信系统中减少相邻信道功率的方法和装置
公开(公告)号：EP1085668A3
公开(公告)日：2003-09-03
申请号：EP00307643.7
申请日：2000-09-04
CPC分类号： H04L27/368 , H04B1/62
摘要： This invention relates to a method and apparatus for reducing adjacent channel power in wireless communication systems. More particularly, the present invention is directed to a system for digitally and adaptively pre-distorting (in 112) a signal that includes applying a correction to the signal before it is applied to the input of an amplifier (16) such that the correction is equal and opposite to anticipated distortion produced by the amplifier. Thus, the correction and the amplifier distortion cancel one another resulting in a system with an overall linear transfer characteristic. In these circumstances, the adjacent channel power is desirably reduced.
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7.发明公开A method and apparatus for reducing adjacent channel power in wireless communication systems 有权一种用于在无线通信系统中减少相邻信道功率的方法和装置
公开(公告)号：EP1085668A2
公开(公告)日：2001-03-21
申请号：EP00307643.7
申请日：2000-09-04
IPC分类号： H04B1/62
CPC分类号： H04L27/368 , H04B1/62
摘要： This invention relates to a method and apparatus for reducing adjacent channel power in wireless communication systems. More particularly, the present invention is directed to a system for digitally and adaptively pre-distorting (in 112) a signal that includes applying a correction to the signal before it is applied to the input of an amplifier (16) such that the correction is equal and opposite to anticipated distortion produced by the amplifier. Thus, the correction and the amplifier distortion cancel one another resulting in a system with an overall linear transfer characteristic. In these circumstances, the adjacent channel power is desirably reduced.
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公开(公告)号：EP0997809A2
公开(公告)日：2000-05-03
申请号：EP99308204.9
申请日：1999-10-18
IPC分类号： G06F1/03
CPC分类号： G06F1/0321
摘要： A digital synthesizer (18) includes a memory (12) containing values representing amplitudes of a signal such as a sinewave, a digital/analog converter (14) for converting outputs from the memory into an analog signal, and a counter (10) for counting by a predetermined fixed increment, which operates at a high frequency to enable the generation of very precise frequency waveforms. The digital synthesizer has many practical applications including the generation of precise signals to extract information from input radio frequency signals, the obtaining of a precise frequency from a low-cost clock, and the use as a component of a FSK modulator to permit selection between signals of multiple frequencies without any phase discontinuity. Finally, the digital synthesizer can be used in combination with an 8-bit memory, to generate a 10-bit input to a digital-to-analog converter.
摘要翻译： 数字合成器（18）包括：存储器（12），其包含表示诸如正弦波的信号的幅度的值;用于将来自存储器的输出转换为模拟信号的数字/模拟转换器（14） 以预定的固定增量进行计数，该增量以高频操作，以便能够生成非常精确的频率波形。 数字合成器有许多实际应用，包括产生精确信号以从输入射频信号中提取信息，从低成本时钟获得精确频率，以及用作FSK调制器的组件以允许在信号之间进行选择 多个频率没有任何相位不连续性。 最后，数字合成器可以与8位存储器结合使用，为数模转换器生成10位输入。
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