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公开(公告)号：US20090195425A1
公开(公告)日：2009-08-06
申请号：US11904510
申请日：2007-09-26
IPC分类号： H03M1/66
摘要： The invention relates to a device and a method for converting a digital signal having a plurality of data-bits into a filtered analog signal. A device according to the invention includes a delay element arranged to produce one or more differently delayed version of the digital signal and a digital-to-analog conversion circuitry arranged to convert the digital signal and the one or more differently delayed, and possibly differently scaled, versions of the digital signal into analog signals and to produce the filtered analog signal as a combination of the analog signals. Therefore, the device constitutes not only a digital-to-analog-converter but also a finite impulse response filter.
摘要翻译： 本发明涉及一种用于将具有多个数据位的数字信号转换为经滤波的模拟信号的装置和方法。 根据本发明的装置包括布置成产生数字信号的一个或多个不同延迟版本的延迟元件和被配置为转换数字信号和一个或多个不同延迟且可能不同地缩放的数模转换电路 ，将数字信号的版本转换成模拟信号，并产生滤波后的模拟信号作为模拟信号的组合。 因此，器件不仅构成了数模转换器，而且构成了有限的脉冲响应滤波器。
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公开(公告)号：US07812751B2
公开(公告)日：2010-10-12
申请号：US11904510
申请日：2007-09-26
IPC分类号： H03M1/66
摘要： The invention relates to a device and a method for converting a digital signal having a plurality of data-bits into a filtered analog signal. A device according to the invention includes a delay element arranged to produce one or more differently delayed version of the digital signal and a digital-to-analog conversion circuitry arranged to convert the digital signal and the one or more differently delayed, and possibly differently scaled, versions of the digital signal into analog signals and to produce the filtered analog signal as a combination of the analog signals. Therefore, the device constitutes not only a digital-to-analog-converter but also a finite impulse response filter.
摘要翻译： 本发明涉及一种用于将具有多个数据位的数字信号转换为经滤波的模拟信号的装置和方法。 根据本发明的装置包括布置成产生数字信号的一个或多个不同延迟版本的延迟元件和被配置为转换数字信号和一个或多个不同延迟且可能不同的缩放的数模转换电路 ，将数字信号的版本转换成模拟信号，并产生滤波后的模拟信号作为模拟信号的组合。 因此，器件不仅构成了数模转换器，而且构成了有限的脉冲响应滤波器。
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公开(公告)号：US20060160510A1
公开(公告)日：2006-07-20
申请号：US11361172
申请日：2006-02-23
CPC分类号： H04B17/21 , H04B1/30 , H04B17/20 , H04B17/318
摘要： A method is disclosed for operating a RF receiver of a communications equipment, as is circuitry for implementing the method. The method includes, while operating under the control of a data processor of the communications equipment, generating a calibration signal; injecting the calibration signal into a low noise amplifier (LNA) of the RF receiver; measuring a downconverted response of the receiver at a plurality of different frequencies of the calibration signal, or measuring the downconverted response of the receiver at a plurality of different LNA tuning combinations using a fixed calibration frequency, and at least one of tuning a resonance frequency of at least one LNA resonator based on the measured downconverted response so as to compensate at least for variations in component values that comprise the at least one resonator, or adjusting the linearity of the receiver.
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公开(公告)号：US20060079191A1
公开(公告)日：2006-04-13
申请号：US11285541
申请日：2005-11-21
IPC分类号： H04B17/00
CPC分类号： H04B1/10 , H03G3/3068 , H04B1/109 , H04B1/16
摘要： A method for continuously determining the required dynamic range for an analog-to-digital converter by determining the received signal strength and using this received signal strength value in combination with the overall dynamic range for the ADC and the target resolution of the ADC to decode a radio channel in the absence of interference, wherein the target resolution is also related to the type of decoding to be performed subsequent to analog-to-digital conversion. The method allows for a reduction in power consumption associated with the ADC, especially when the incoming signal is received with few interfering radio channels and with a relatively high signal strength. The present method can be combined with gain control and analog alert detection.
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5.发明授权Method and apparatus for continuously controlling the dynamic range from an analog-to-digital converter 有权用于从模数转换器连续控制动态范围的方法和装置公开(公告)号：US07522885B2
公开(公告)日：2009-04-21
申请号：US11285541
申请日：2005-11-21
IPC分类号： H04B17/00
CPC分类号： H04B1/10 , H03G3/3068 , H04B1/109 , H04B1/16
摘要： A method for continuously determining the required dynamic range for an analog-to-digital converter by determining the received signal strength and using this received signal strength value in combination with the overall dynamic range for the ADC and the target resolution of the ADC to decode a radio channel in the absence of interference, wherein the target resolution is also related to the type of decoding to be performed subsequent to analog-to-digital conversion. The method allows for a reduction in power consumption associated with the ADC, especially when the incoming signal is received with few interfering radio channels and with a relatively high signal strength. The present method can be combined with gain control and analog alert detection.
摘要翻译： 一种用于通过确定接收到的信号强度并且将该接收信号强度值与ADC的总动态范围和ADC的目标分辨率结合来解码的方法，用于连续地确定模数转换器所需的动态范围 无线电信道，其中目标分辨率也与在模数转换之后要执行的解码的类型有关。 该方法允许降低与ADC相关的功耗，特别是当输入信号以少量干扰无线电信道和较高的信号强度被接收时。 本方法可以与增益控制和模拟警报检测相结合。
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公开(公告)号：US20090093257A1
公开(公告)日：2009-04-09
申请号：US12245375
申请日：2008-10-03
申请人： Mikko Rinne , Antti Lappetelainen , Pauli Seppinen , Jussi Ojala , Aarno Parssinen , Risto Kaunisto
发明人： Mikko Rinne , Antti Lappetelainen , Pauli Seppinen , Jussi Ojala , Aarno Parssinen , Risto Kaunisto
IPC分类号： H04W72/04
摘要： A method, device, and system that use narrowband channels to provide higher re-use without multiplying the operator spectrum requirement. If a communication system supports variable carrier bandwidth channels, the narrow channel capacity can be divided among adjacent cells to provide higher re-use.
摘要翻译： 一种方法，设备和系统，使用窄带信道来提供更高的重复使用，而不需要乘法器频谱要求。 如果通信系统支持可变载波带宽信道，则窄信道容量可以在相邻小区之间划分以提供较高的重用。
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公开(公告)号：US06993291B2
公开(公告)日：2006-01-31
申请号：US09977271
申请日：2001-10-11
CPC分类号： H04B1/10 , H03G3/3068 , H04B1/109 , H04B1/16
摘要： A method for continuously determining the required dynamic range for an analog-to-digital converter by determining the received signal strength and using this received signal strength value in combination with the overall dynamic range for the ADC and the target resolution of the ADC to decode a radio channel in the absence of interference, wherein the target resolution is also related to the type of decoding to be performed subsequent to analog-to-digital conversion. The method allows for a reduction in power consumption associated with the ADC, especially when the incoming signal is received with few interfering radio channels and with a relatively high signal strength. The present method can be combined with gain control and analog alert detection.
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8.发明授权Method and apparatus providing calibration technique for RF performance tuning 失效提供RF性能调谐校准技术的方法和设备公开(公告)号：US07203472B2
公开(公告)日：2007-04-10
申请号：US10099626
申请日：2002-03-15
CPC分类号： H04B17/21 , H04B1/30 , H04B17/20 , H04B17/318
摘要： A method is disclosed for operating a RF receiver of a communications equipment, as is circuitry for implementing the method. The method includes, while operating under the control of a data processor of the communications equipment, generating a calibration signal; injecting the calibration signal into a low noise amplifier (LNA) of the RF receiver; measuring a downconverted response of the receiver at a plurality of different frequencies of the calibration signal, or measuring the downconverted response of the receiver at a plurality of different LNA tuning combinations using a fixed calibration frequency, and at least one of tuning a resonance frequency of at least one LNA resonator based on the measured downconverted response so as to compensate at least for variations in component values that comprise the at least one resonator, or adjusting the linearity of the receiver.
摘要翻译： 公开了一种用于操作通信设备的RF接收器的方法，以及用于实现该方法的电路。 该方法包括：在通信设备的数据处理器的控制下运行，产生校准信号; 将校准信号注入RF接收机的低噪声放大器（LNA）; 测量所述接收机在所述校准信号的多个不同频率处的下变频响应，或者使用固定校准频率来测量所述接收机在多个不同LNA调谐组合的下变频响应，以及调谐所述接收机的谐振频率 基于所测量的下变频响应的至少一个LNA谐振器，以便至少补偿构成所述至少一个谐振器的分量值的变化，或者调整所述接收机的线性度。
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9.发明申请Method and apparatus for compensating DC level in an adaptve radio receiver 失效用于在适应无线电接收机中补偿直流电平的方法和装置公开(公告)号：US20070066260A1
公开(公告)日：2007-03-22
申请号：US11601897
申请日：2006-11-20
CPC分类号： H04B1/30
摘要： A radio frequency receiver 30, 32, includes a first component block 12, 16, 18, 20; a second compensating component block 22, 22a-22b, 34; and control circuitry 26 operable for controlling the state (e.g., load, bias, gain) of the first component block. When the control circuitry 26 causes a change in the state of the first component block that is expected to induce a DC offset in a signal, the control circuitry 26 changes the state of the second component block to compensate for an estimate of the DC offset. Preferably, the second component block is a filter 22, 22a-22b, 34, that temporarily changes from a nominal cutoff frequency to an elevated cutoff frequency so that voltage will settle quickly and accurately at an estimated voltage, the estimated voltage being predetermined and based on the state change to the first component block. A method is also described for practicing the invention.
摘要翻译： 射频接收器30,32包括第一组件块12,16,18,20; 第二补偿部件块22,22a-22b，34; 以及可操作用于控制第一组件块的状态（例如，负载，偏置，增益）的控制电路26。 当控制电路26导致预期在信号中引起DC偏移的第一分量块的状态改变时，控制电路26改变第二分量块的状态以补偿DC偏移的估计。 优选地，第二组件块是过滤器22,22a-22b，34，其临时从标称截止频率改变到提升的截止频率，使得电压将在估计的电压下快速且准确地稳定，所估计的电压是预定的 并且基于对第一组件块的状态改变。 还描述了一种用于实施本发明的方法。
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公开(公告)号：US09185565B2
公开(公告)日：2015-11-10
申请号：US12245375
申请日：2008-10-03
申请人： Mikko Rinne , Antti Lappetelainen , Pauli Seppinen , Jussi Ojala , Aarno Parssinen , Risto Kaunisto
发明人： Mikko Rinne , Antti Lappetelainen , Pauli Seppinen , Jussi Ojala , Aarno Parssinen , Risto Kaunisto
摘要： A method, device, and system that use narrowband channels to provide higher re-use without multiplying the operator spectrum requirement. If a communication system supports variable carrier bandwidth channels, the narrow channel capacity can be divided among adjacent cells to provide higher re-use.
摘要翻译： 一种方法，设备和系统，使用窄带信道来提供更高的重复使用，而不需要乘法器频谱要求。 如果通信系统支持可变载波带宽信道，则窄信道容量可以在相邻小区之间划分以提供较高的重用。
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