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1. 发明申请

WO2008144450A2 ENHANCED PILOT SIGNAL 审中-公开
标题翻译：增强引航信号
公开(公告)号：WO2008144450A2
公开(公告)日：2008-11-27
申请号：PCT/US2008063800
申请日：2008-05-15
申请人： QUALCOMM INC , BLACK PETER J , WU QIANG , ZHAO WANLUN , TOKGOZ YELIZ , PADOVANI ROBERTO , NAGUIB AYMAN FAWZY , KIM JE WOO , EDGE STEPHEN , AGASHE PARAG A , BHUSHAN NAGA , DAYAL PRANAV
发明人： BLACK PETER J , WU QIANG , ZHAO WANLUN , TOKGOZ YELIZ , PADOVANI ROBERTO , NAGUIB AYMAN FAWZY , KIM JE WOO , EDGE STEPHEN , AGASHE PARAG A , BHUSHAN NAGA , DAYAL PRANAV
IPC分类号： H04L5/00
CPC分类号： H04W4/02 , H03M1/185 , H04L5/0023 , H04L5/0048 , H04L27/261 , H04L27/2613 , H04W16/02 , H04W64/00
摘要： Briefly, in accordance with one embodiment, a method of transmitting signals is provided. Signal waveforms are transmitted from at least two respective sectors. The at least two respective sectors are from at least two different sets of a superset of sectors. The transmitted signal waveforms include signal waveforms at least nearly mutually orthogonal at least along a particular signal dimension. An advantage of such an embodiment, for example, is reduced signal interference.
摘要翻译：简而言之，根据一个实施例，提供一种发送信号的方法。信号波形从至少两个相应的扇区发送。所述至少两个相应扇区是来自扇区的超集的至少两组不同的集合。发送的信号波形包括至少沿着特定信号维度至少几乎相互正交的信号波形。例如，这样的实施例的优点是减少了信号干扰。

2. 发明申请

WO2007115327A2 AUTOMATIC GAIN CONTROL 审中-公开
标题翻译：自动增益控制
公开(公告)号：WO2007115327A2
公开(公告)日：2007-10-11
申请号：PCT/US2007/066000
申请日：2007-04-04
申请人： QUALCOMM INCORPORATED , KRISHNAMOORTHI, Raghuraman , MURTHY, Vinay
发明人： KRISHNAMOORTHI, Raghuraman , MURTHY, Vinay
IPC分类号： H03G3/00 , H03G3/30
CPC分类号： H03G3/002 , H03G3/3089 , H03M1/185
摘要： Techniques for performing automatic gain control are described. In some aspects, the gain control is achieved with an apparatus having an analog-to-digital converter (ADC) and a digital variable gain amplifier (DVGA), the DVGA configured to receive a digital signal from the ADC, the DVGA having a processor configured to compute a gain using a base n logarithm based on the power of the digital signal output from the ADC, the processor being further configured to apply the gain to the digital signal.
摘要翻译：描述了执行自动增益控制的技术。在一些方面中，增益控制通过具有模数转换器（ADC）和数字可变增益放大器（DVGA）的设备来实现，DVGA被配置为从ADC接收数字信号，DVGA具有处理器被配置为基于从所述ADC输出的所述数字信号的功率使用基数n对数来计算增益，所述处理器进一步被配置为将所述增益应用于所述数字信号。

3. 发明申请

WO2004098051A1 METHOD AND CIRCUIT FOR CONTROLLING AMPLIFICATION 审中-公开
标题翻译：用于控制放大的方法和电路
公开(公告)号：WO2004098051A1
公开(公告)日：2004-11-11
申请号：PCT/EP2004/004337
申请日：2004-04-23
申请人： COREOPTICS INC. , LANGENBACH, Stefan , STOJANOVIC, Nebojsa
发明人： LANGENBACH, Stefan , STOJANOVIC, Nebojsa
IPC分类号： H03G3/30
CPC分类号： H03G3/3078 , H03G3/001 , H03G3/3052 , H03G3/3068 , H03M1/185
摘要： This invention relates to a method for controlling an amplification within a receiver. The gain of a variable gain amplifier which amplifies an input signal to obtain a gain-controlled signal is set. Said gain controlled signal is analog-to-digital converted. Thereby digital words are generated. Each digital word has a value out of a plurality of possible digital values. Digital words having a value within a first and a second subset of the possible digital values are counted in order to generate a first and a second counter value. The gain is set in accordance with the first and second counter values in a fashion that all counter values are as equal as possible. Furthermore, this invention is related to a circuit to be used within a receiver for adjusting the gain of a variable gain amplifier in order to ensure a proper analog-to-digital conversion.
摘要翻译：本发明涉及一种用于控制接收机内的放大的方法。设置放大输入信号以获得增益控制信号的可变增益放大器的增益。所述增益控制信号被模数转换。从而产生数字字。每个数字字都具有多个可能的数字值中的值。对具有可能的数字值的第一和第二子集内的值的数字字进行计数，以产生第一和第二计数器值。按照所有计数器值尽可能相等的方式，根据第一和第二计数器值设置增益。此外，本发明涉及用于调节可变增益放大器的增益的接收机内使用的电路，以便确保适当的模数转换。

4. 发明申请

WO02043253A2 A RADIO RECEIVER 审中-公开
标题翻译：无线电接收器
公开(公告)号：WO02043253A2
公开(公告)日：2002-05-30
申请号：PCT/GB2001/005103
申请日：2001-11-19
IPC分类号： H04B1/16 , H03G3/30 , H03M1/18 , H04B7/26 , H04B1/00
CPC分类号： H03M1/185 , H03G3/3052
摘要： A radio receiver (30) comprises an ADC (13) including a clip counter. The power of digitised signals provided by the ADC (13) is estimated by a power estimator (31), and an ideal gain value is computed from the power so estimated by a gain computation device (32). Gain computation signals are fed to a gain control input of an amplifier (11) via an LPF (33). A saturation detector (34) is connected to a clip counter output of the ADC (13), and to a control input of the LPF (33). The saturation detector (34) is arranged when saturation of the ADC is detected to reduce the gain setting value by at least two steps, by which the gain of the amplifier is immediately reduced. A detector detects the Doppler frequency of signals received and accordingly determines the size of the drop in amplification which is effected when saturation of the ADC (13) is detected. The gain reduction may be 3dB under very low Doppler shift conditions and 12dB under very high Doppler shift conditions.
摘要翻译：无线电接收机（30）包括一个包括一个剪辑计数器的ADC（13）。由功率估计器（31）估计由ADC（13）提供的数字化信号的功率，并根据由增益计算装置（32）所估计的功率来计算理想增益值。增益计算信号通过LPF（33）馈送到放大器（11）的增益控制输入端。饱和检测器（34）连接到ADC（13）的钳位计数器输出端，并连接到LPF（33）的控制输入端。当检测到饱和度时，饱和检测器（34）被设置为将增益设定值降低至少两个步骤，由此立即减小放大器的增益。检测器检测接收的信号的多普勒频率，并因此确定在检测到ADC（13）的饱和时实现的放大下降的大小。在非常低的多普勒频移条件下，增益减小可能是3dB，而在非常高的多普勒频移条件下，增益减小可能是12dB。

5. 发明申请

WO01048933A1 RECEIVER AND GAIN CONTROL METHOD 审中-公开
标题翻译：接收和增益控制方法
公开(公告)号：WO01048933A1
公开(公告)日：2001-07-05
申请号：PCT/JP2000/009002
申请日：2000-12-19
IPC分类号： H03G3/30 , H03M1/18 , H04B1/10 , H04B7/005 , H04B7/26 , H04W52/04 , H04W88/00 , H04B1/16
CPC分类号： H04W52/24 , H03G3/3052 , H03G3/3068 , H03M1/185 , H04B1/1027 , H04B1/7107 , H04B7/005 , H04W52/52
摘要： A SINR meter (108) measures a signal to interference ratio based on the output from an A/D converter (104) and the output from an interference canceler (108). The field strength detector (111) computes the absolute field strength of a desired signal based on the signal to interference ratio and on the field strength of the received signal measured by a field strength meter (109). A comparator (112) compares the absolutely field strength with a predetermined target value. The gain generator (113) computes a gain factor based on the result of comparison provided by the comparator (112) and controls the gain of an AGC (103) precisely to prevent the degradation of reception quality.
摘要翻译： SINR计（108）根据来自A / D转换器（104）的输出和来自干扰消除器（108）的输出来测量信号干扰比。场强检测器（111）基于信号干扰比和由场强计（109）测量的接收信号的场强来计算期望信号的绝对场强。比较器（112）将绝对场强与预定目标值进行比较。增益生成器（113）基于由比较器（112）提供的比较结果来计算增益因子，并且精确地控制AGC（103）的增益以防止接收质量的劣化。

6. 发明申请

WO2016170413A1 ANALOG-TO-DIGITAL CONVERTER (ADC) DYNAMIC RANGE ENHANCEMENT FOR VOICE-ACTIVATED SYSTEMS 审中-公开
标题翻译：模拟数字转换器（ADC）语音激活系统的动态范围增强
公开(公告)号：WO2016170413A1
公开(公告)日：2016-10-27
申请号：PCT/IB2016/000496
申请日：2016-04-04
申请人： CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD.
发明人： MORTAZAVI, Yousof , MELANSON, John, L. , ZANBACHI, Ramin , BRENNAN, Aaron
IPC分类号： H03M1/18 , G10L25/78
CPC分类号： G10L25/78 , G10L15/22 , G10L15/28 , G10L15/34 , G10L21/034 , G10L2015/223 , H03M1/185 , H03M3/49
摘要： The dynamic range and power efficiency of a voice-activated system may be improved by dynamically adjusting the configuration of the voice-activated system's input path. In one embodiment, a first portion of audio may be received through an input path of the voice- activated system having a first configuration. A characteristic of the first portion of audio may be determined and the input path may be adjusted to a second configuration based on the determined characteristic. A second portion of audio may then be received through the input path having the second configuration, and speech analysis may be performed on the second portion of audio.
摘要翻译：通过动态调整语音激活的系统的输入路径的配置，可以提高语音激活的系统的动态范围和功率效率。在一个实施例中，音频的第一部分可以通过具有第一配置的语音激活系统的输入路径被接收。可以确定音频的第一部分的特性，并且可以基于所确定的特性将输入路径调整到第二配置。然后可以通过具有第二配置的输入路径接收第二部分音频，并且可以在音频的第二部分上执行语音分析。

7. 发明申请

WO2014009196A2 RADIOFREQUENCY SIGNAL SETTING REACHING A CONDITION OF JAMMING OR CLIPPING 审中-公开
标题翻译：射频信号设置达到阻止或截断状态
公开(公告)号：WO2014009196A2
公开(公告)日：2014-01-16
申请号：PCT/EP2013063860
申请日：2013-07-01
申请人： ST ERICSSON SA
发明人： GANDER MARTIAL , MYREHED MAARTEN
IPC分类号： G01D1/00
CPC分类号： H04B1/1027 , H03G3/3052 , H03M1/185
摘要： A method of setting a Radiofrequency, RF, signal level in a RF receiver comprising: - estimating an error of the signal level due to signal level reaching a condition of jamming or clipping by correlating the signal level with a point of a characterisation curve of jamming condition or with a point of a characterisation curve of clipping condition (300), respectively; - correcting the RF signal level based on the error; and, wherein: - each of the characterisation curves comprises a plurality of points comprising first points determined in a previously performed characterisation at a point of measurement and groups of second points stepped between pairs of adjacent first points, said plurality of first points including at least three points defining at least two sections of the characterisation curve.
摘要翻译：一种设置RF接收机中的射频RF信号电平的方法，包括： - 通过使信号电平与特征性干扰曲线的点相关来估计由于信号电平达到干扰或限幅条件而导致的信号电平的误差条件或与限幅条件（300）的特征曲线的点分别相乘; - 基于误差校正RF信号电平; 并且其中： - 所述特征曲线中的每一个包括多个点，所述多个点包括在测量点处的先前执行的表征中确定的第一点和在相邻的第一点对之间步进的第二点的组，所述多个第一点至少包括三个点定义了特征曲线的至少两个部分。

8. 发明申请

WO2007115327A3 AUTOMATIC GAIN CONTROL 审中-公开
标题翻译：自动增益控制
公开(公告)号：WO2007115327A3
公开(公告)日：2007-12-13
申请号：PCT/US2007066000
申请日：2007-04-04
申请人： QUALCOMM INC , KRISHNAMOORTHI RAGHURAMAN , MURTHY VINAY
发明人： KRISHNAMOORTHI RAGHURAMAN , MURTHY VINAY
IPC分类号： H03G3/00 , H03G3/30
CPC分类号： H03G3/002 , H03G3/3089 , H03M1/185
摘要： Techniques for performing automatic gain control are described. In some aspects, the gain control is achieved with an apparatus having an analog-to-digital converter (ADC) and a digital variable gain amplifier (DVGA), the DVGA configured to receive a digital signal from the ADC, the DVGA having a processor configured to compute a gain using a base n logarithm based on the power of the digital signal output from the ADC, the processor being further configured to apply the gain to the digital signal.
摘要翻译：描述了执行自动增益控制的技术。在一些方面，利用具有模数转换器（ADC）和数字可变增益放大器（DVGA）的装置来实现增益控制，DVGA被配置为从ADC接收数字信号，DVGA具有处理器被配置为基于从ADC输出的数字信号的功率使用基本对数来计算增益，所述处理器还被配置为将所述增益应用于所述数字信号。

9. 发明申请

WO2004068734A1 TRUNCATION AND LEVEL ADJUSTEMENT OF RAKE OUTPUT SYMBOLS 审中-公开
标题翻译： RAKE输出符号的功能和等级调整
公开(公告)号：WO2004068734A1
公开(公告)日：2004-08-12
申请号：PCT/EP2003/014530
申请日：2003-12-18
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , BENGTSSON, Magnus , JONSSON, Elias
发明人： BENGTSSON, Magnus , JONSSON, Elias
IPC分类号： H04B1/707
CPC分类号： H03M1/185 , H03G3/3052 , H04B1/7115 , H04B1/7117 , H04B1/712
摘要： A method of receiving radio signals in a receiver for a digital wireless communications system comprises the steps of level adjusting a received radio signal by an automatic gain control (12); and despreading the signal in a RAKE unit (14) having a number of fingers. The despread data symbols are truncated to symbols represented by a smaller number of bits than that of the despread data symbols by selecting the least significant bits of the despread data symbols. The truncated data symbols are saturated; and the despread data symbols are level adjusted in dependence of said despread data symbols, so that overflow for the truncated data symbols is prevented. In this way the number of bits used to represent the despread data symbols that are output from the fingers of the RAKE can be reduced in such a way that the loss of soft information is minimized.
摘要翻译：一种在用于数字无线通信系统的接收机中接收无线电信号的方法包括以下步骤：通过自动增益控制（12）对所接收的无线电信号进行电平调整; 以及在具有多个手指的RAKE单元（14）中解扩信号。通过选择解扩数据符号的最低有效位，解扩数据符号被截断为由比扩展数据符号的比特数少的位表示的符号。截断的数据符号是饱和的; 并且解扩数据符号根据所述解扩数据符号进行电平调整，从而防止对截断的数据符号的溢出。以这种方式，可以减少用于表示从RAKE的手指输出的解扩数据符号的比特数，使得软信息的丢失最小化。

10. 发明申请

WO2004047323A1 AUTOMATIC GAIN CONTROL USING SIGNAL AND INTERFERENCE POWER TO OBTAIN EXTENDED BLOCKING PERFORMANCE 审中-公开
标题翻译：使用信号和干扰功率的自动增益控制可以获得扩展的阻塞性能
公开(公告)号：WO2004047323A1
公开(公告)日：2004-06-03
申请号：PCT/IB2003/005133
申请日：2003-11-14
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , U.S. PHILIPS CORPORATION , RAZZELL, Charles
发明人： RAZZELL, Charles
IPC分类号： H04B1/28
CPC分类号： H03G3/001 , H03G3/3068 , H03M1/185 , H04B1/109 , H04B1/28
摘要： In a radio including analog and digital portions, with at least one A/D converter between the analog and digital portions, and the selectivity of the radio at least partly implemented in the digital domain, an AGC controller sets a first variable gain amplifier (VGA) (302) to low gain upon a determination that a wide-band power estimation exceeds a wide-band threshold. The wide-band threshold is selected to reduce the occurrence of A/D converter saturation. If the wide-band power estimation is less than the wide-band threshold, then for each VGA (302) in the analog portion, a determination is made whether a narrow band power estimate exceeds a narrow-band threshold, corresponding to that VGA (302), plus a hysteresis value, in which case that VGA (302) is set to low gain; or whether the narrow-band energy estimate is less than the narrow-band threshold minus a hysteresis value, in which case that VGA (302) is set to high gain.
摘要翻译：在包括模拟和数字部分的无线电中，在模拟和数字部分之间具有至少一个A / D转换器，以及至少部分地在数字域中实现的无线电的选择性，AGC控制器设置第一可变增益放大器）（302）在宽带功率估计超过宽带阈值的确定时为低增益。选择宽带阈值以减少A / D转换器饱和的发生。如果宽带功率估计小于宽带阈值，则对于模拟部分中的每个VGA（302），确定窄带功率估计是否超过窄带阈值，对应于该VGA（ 302），加上滞后值，在这种情况下VGA（302）被设置为低增益; 或者窄带能量估计是否小于窄带阈值减去迟滞值，在这种情况下VGA（302）被设置为高增益。

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