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1. 发明授权

US09184971B2 Apparatus for and method of robust packet detection and frequency offset estimation 有权
标题翻译：鲁棒分组检测和频偏估计的方法和方法
公开(公告)号：US09184971B2
公开(公告)日：2015-11-10
申请号：US11739094
申请日：2007-04-23
申请人： Gregory Lerner , Nir Tal , Dan Wolberg , Manoneet Singh , Yehuda Azenkot
发明人： Gregory Lerner , Nir Tal , Dan Wolberg , Manoneet Singh , Yehuda Azenkot
IPC分类号： H04L27/00 , H04L27/26 , H04L7/04 , H04L7/08
CPC分类号： H04L27/2656 , H04L7/042 , H04L7/08 , H04L27/2657 , H04L27/2679 , H04L2027/0046 , H04L2027/0065
摘要： A novel and useful apparatus for and method of packet detection and carrier frequency offset estimation. The packet detection mechanism is robust to channels and sustains reasonable miss-detect (and false alarm) rates at low SNR values. The mechanism uses a modified combined cross correlation and delay and correlate scheme. A delay and correlate scheme is used in order to handle the effects of multipath while swapping integration and multiplication to increase cross-correlation factors resulting in improved sensitivity in low SNR conditions. Correlation is divided into multiple chains to generate a plurality of partial correlations to observe short patterns in the spread sequence resulting in improved performance in long multipath channels.
摘要翻译：一种新颖有用的分组检测和载波频率偏移估计方法及方法。分组检测机制对信道是鲁棒的，并且在低SNR值下维持合理的错误检测（和误报）速率。该机制采用改进的组合互相关和延迟和相关方案。使用延迟和相关方案来处理多路径的影响，同时交换积分和乘法以增加互相关因子，从而在低SNR条件下提高灵敏度。相关性被分成多个链以产生多个部分相关性以观察扩展序列中的短模式，导致在长多径信道中的改进的性能。

2. 发明申请

US20080056337A1 Local oscillator with non-harmonic ratio between oscillator and RF frequencies using XOR operation 有权
标题翻译：使用异或运算，振荡器与RF频率之间具有非谐波比的本机振荡器
公开(公告)号：US20080056337A1
公开(公告)日：2008-03-06
申请号：US11844343
申请日：2007-08-23
申请人： Nir Tal , Yossi Tsfaty , Robert B. Staszewski , Gregory Lerner
发明人： Nir Tal , Yossi Tsfaty , Robert B. Staszewski , Gregory Lerner
IPC分类号： H04B1/40 , H03B21/00
CPC分类号： H03B21/02
摘要： A novel and useful apparatus for and method of local oscillator (LO) generation with non-integer multiplication ratio between the local oscillator and RF frequencies. The LO generation schemes presented are operative to generate I and Q square waves at a designated frequency while avoiding the well known issue of harmonic pulling. A synthesizer provides 4/3 the desired frequency fRF. This frequency is divided by two to obtain in-phase and quadrature square waves at ⅔ fRF. The in-phase signal is divided by two again to obtain in-phase and quadrature square waves at ⅓ fRF. The signals are then logically combined using XOR operations to obtain I and Q branch signals containing spectral spurs. Since the spurs are located in non-disturbing bands, they can be filtered out resulting in the desired output signal.
摘要翻译：本地振荡器（LO）生成的新颖有用的装置和方法，其本地振荡器和RF频率之间具有非整数倍乘比。所呈现的LO产生方案可用于以指定频率产生I和Q方波，同时避免众所周知的谐波拉动问题。合成器提供4/3所需的频率f RF。该频率除以2以在2/3 f RF RF获得同相和正交方波。同相信号再次被二分频以在1/3f RF RF下获得同相和正交方波。然后使用XOR操作逻辑地组合信号以获得包含光谱刺激的I和Q分支信号。由于马刺位于非干扰波段，所以它们可被滤除，从而产生所需的输出信号。

3. 发明申请

US20080055009A1 Local oscillator with non-harmonic ratio between oscillator and RF frequencies using digital mixing and weighting functions 有权
标题翻译：使用数字混合和加权功能的振荡器和RF频率之间的非谐波比率的本地振荡器
公开(公告)号：US20080055009A1
公开(公告)日：2008-03-06
申请号：US11844439
申请日：2007-08-24
申请人： Gregory Lerner , Nir Tal
发明人： Gregory Lerner , Nir Tal
IPC分类号： H03B21/01 , H03B21/00
CPC分类号： H03B21/00
摘要： A novel and useful apparatus for and method of local oscillator (LO) generation with non-integer multiplication ratio between the local oscillator and RF frequencies. The LO generation schemes presented are operative to generate I and Q square waves at a designated frequency while avoiding the well known issue of harmonic pulling. The signal is input to a synthesizer timed to a rational multiplier of the RF frequency fRF. The signal is then divided to generate a plurality of phases of the divided signal. A plurality of combination signals are generated which are then multiplied by a set of weights and summed to cancel out some undersired products. The result is filtered to generate the LO output signal.
摘要翻译：本地振荡器（LO）生成的新颖有用的装置和方法，其本地振荡器和RF频率之间具有非整数倍乘比。所呈现的LO产生方案可用于以指定频率产生I和Q方波，同时避免众所周知的谐波拉动问题。该信号被输入到合成器，其被定时到RF频率f RF RF的有理乘数。然后将信号分割以产生分割信号的多个相位。生成多个组合信号，然后乘以一组权重并相加以抵消一些较低产品。滤波后产生LO输出信号。

4. 发明授权

US06665352B2 Overlapping windowing mechanism utilizing transmit waveform extensions 失效
标题翻译：利用发射波形扩展的重叠窗口机制
公开(公告)号：US06665352B2
公开(公告)日：2003-12-16
申请号：US10035133
申请日：2002-01-04
申请人： Gregory Lerner , Dan Raphaeli , Oren Kaufman , Boris Zarud
发明人： Gregory Lerner , Dan Raphaeli , Oren Kaufman , Boris Zarud
IPC分类号： H04L2549
CPC分类号： H04L25/03834
摘要： A novel and useful windowing mechanism for reducing the out of band harmonics of an output transmit signal. The windowing mechanism functions to smooth the transition between two consecutive transmit waveforms. The mechanism of present invention is particularly useful in communication systems characterized by consecutively transmitted symbols whereby the concatenation of transmitted waveforms causes discontinuities between symbols. The windowing mechanism is operative to reduce the effect of these discontinuities to reduce out of band harmonics of the transmitted output signal. The windowing mechanism extends each transmit waveform both earlier and later in time thus creating extending waveform portions on either end of the transmit waveform. The extended portions are then multiplied by a suitable windowing function and the result is summed with the next transmit waveform.
摘要翻译：一种用于减少输出发射信号的带外谐波的新型和有用的窗口机制。开窗机制用于平滑两个连续发射波形之间的转换。本发明的机理在以连续发送的符号为特征的通信系统中特别有用，由此传输的波形的级联导致符号之间的不连续性。开窗机制可用于减少这些不连续性的影响，以减少发射的输出信号的带外谐波。窗口化机制在时间上更早地延迟每个发射波形，从而在发射波形的任一端产生扩展的波形部分。然后将扩展部分乘以合适的加窗函数，并将结果与下一个发送波形相加。

5. 发明申请

US20080055010A1 Local oscillator with non-harmonic ratio between oscillator and RF frequencies using pulse generation and selection 有权
标题翻译：使用脉冲发生和选择，振荡器和RF频率之间具有非谐波比的本地振荡器
公开(公告)号：US20080055010A1
公开(公告)日：2008-03-06
申请号：US11844453
申请日：2007-08-24
申请人： Gregory Lerner , Nir Tal , Robert B. Staszewski
发明人： Gregory Lerner , Nir Tal , Robert B. Staszewski
IPC分类号： H03B21/01 , H03B21/00
CPC分类号： H03B21/02 , H03K5/00006 , H03K5/13 , H03K5/1565
摘要： A novel and useful apparatus for and method of local oscillator (LO) generation with non-integer multiplication ratio between the local oscillator and RF frequencies. The LO generation schemes presented are operative to generate I and Q square waves at a designated frequency while avoiding the well known issue of harmonic pulling. The input signal is fed to a synthesizer timed to a rational multiplier of the RF frequency L/N fRF. The clock signal generated is divided by a factor Q to form 2Q phases of the clock at a frequency of L(N*Q) fRF, wherein each phase undergoes division by L. The phase signals are input to a pulse generator which outputs a plurality of pulses. The pulses are input to a selector which selects which signal to output at any point in time. By controlling the selector, the output clock is generated as a TDM based signal. Any spurs are removed by an optional filter.
摘要翻译：本地振荡器（LO）生成的新颖有用的装置和方法，其本地振荡器和RF频率之间具有非整数倍乘比。所呈现的LO产生方案可用于以指定频率产生I和Q方波，同时避免众所周知的谐波拉动问题。输入信号被馈送到合成器，其被定时到RF频率L / N f RF RF的有理乘数。所产生的时钟信号除以因子Q以在L（N * Q）f RF RF的频率处形成时钟的2Q相位，其中每相经过除法L。相位信号被输入涉及输出多个脉冲的脉冲发生器。脉冲被输入到选择器，其选择在任何时间点输出哪个信号。通过控制选择器，输出时钟作为基于TDM的信号产生。任何杂项都可以通过可选过滤器去除。

6. 发明授权

US06826235B2 Robust communications system utilizing repetition code and cumulative decoder associated therewith 失效
标题翻译：利用重复码的鲁棒通信系统和与其相关的累积解码器
公开(公告)号：US06826235B2
公开(公告)日：2004-11-30
申请号：US10035119
申请日：2002-01-04
申请人： Gregory Lerner , Dan Raphaeli , Oren Kaufman , Boris Zarud
发明人： Gregory Lerner , Dan Raphaeli , Oren Kaufman , Boris Zarud
IPC分类号： H04L2302
CPC分类号： H04B1/70775 , H04B3/54 , H04B2203/5408 , H04B2203/5416 , H04B2203/5425 , H04B2203/5441 , H04B2203/5483 , H04L1/0045 , H04L1/08
摘要： A novel robust communications scheme whereby a repetition code at the transmitter and an associated cumulative decoder at the receiver are used to increase the reliability of transmission in a communications system. The robust communications scheme of the present invention is effective to increase the reliability of transmission by repetitively transmitting each data segment a number of times in accordance with a repetition code and subsequently collecting the received energy at the receiver over an accordingly longer period of time. Accumulating the received energy over a longer period of time at the receiver, yields a marked improvement in the signal to noise ratio (SNR) of the receiver.
摘要翻译：一种新颖的鲁棒通信方案，其中在发射机处的重复码和接收机处的相关联的累积解码器被用于增加通信系统中的传输的可靠性。本发明的鲁棒通信方案通过根据重复码重复地发送每个数据段多次并且随后在相应更长的时间段内收集接收的能量，从而有效地提高了传输的可靠性。在接收机上在更长的时间内累积接收到的能量，导致接收机的信噪比（SNR）的显着改善。

7. 发明授权

US09843378B2 Multiple-input multiple-output wireless transceiver architecture 有权
公开(公告)号：US09843378B2
公开(公告)日：2017-12-12
申请号：US12842033
申请日：2010-07-23
申请人： Gregory Lerner , Nir E J Tal , Ronen Shaul Isaac , Roi Faust
发明人： Gregory Lerner , Nir E J Tal , Ronen Shaul Isaac , Roi Faust
IPC分类号： H04B1/38 , H04L27/00 , H04B7/08 , H04L5/00
CPC分类号： H04B7/0874 , H04B7/0871 , H04L5/0023 , H04L27/0002
摘要： A wireless transceiver contains a receiver and a transmitter. The receiver is operable in single-input single-output (SISO) mode as well as multiple-input multiple-output (MIMO) mode, and contains a pair of in-phase and quadrature signal processing chains and a baseband processor. In SISO mode, each of the processing chains in the pair is connected to receive a same modulated signal as input, and generates respective baseband outputs. The baseband processor processes the baseband outputs to demodulate the modulated signal. In MIMO mode, the signal processing chains in the pair receive different modulated signals and generate corresponding down-converted signals. The baseband processor processes the down-converted signals to demodulate the respective modulated signals received by the receiver. Corresponding techniques to provide MIMO in addition to SISO capabilities are implemented in the transmitter also. MIMO capability is thereby achieved in the wireless transceiver with minimal additional implementation area.

8. 发明授权

US08724649B2 Distributed coexistence system for interference mitigation in a single chip radio or multi-radio communication device 有权
标题翻译：用于单芯片无线电或多无线电通信设备中的干扰减轻的分布式共存系统
公开(公告)号：US08724649B2
公开(公告)日：2014-05-13
申请号：US12325401
申请日：2008-12-01
申请人： Nir Tal , Yaniv Tzoreff , Moran Amidan , Gregory Lerner , Ronen Isaac , Roi Faust
发明人： Nir Tal , Yaniv Tzoreff , Moran Amidan , Gregory Lerner , Ronen Isaac , Roi Faust
IPC分类号： H04L12/413 , H04B3/32
CPC分类号： H04L12/413 , H04B3/32 , H04B15/02 , H04B2215/064 , H04B2215/065
摘要： A novel and useful apparatus for and method of distributed coexistence for mitigating interference in a single chip radio and/or a multi-radio (i.e. multi-transceiver) communications device. The invention enables coexistence ‘friendly’ radio IPs having frequency agility in that they are capable of shifting their clock frequencies thereby avoiding frequency bands of potential victim radios. Frequency agility on the aggressor radio side (rather than by mitigating the effect of interference on the victim radio side) prevents harmonics from the aggressor's clock scheme from falling in the operating frequency band of the victim radio, and in turn causing degradation to its performance. Each aggressor radio, based on information received from other radios, configures the root clock frequency of its RX and/or TX chain clock generation circuits.
摘要翻译：一种用于减轻单芯片无线电和/或多无线电（即多收发机）通信设备中的干扰的分布式共存的新颖有用的装置和方法。本发明使具有频率敏捷性的共存“友好”无线IP成为能够移动其时钟频率从而避免潜在的受害者无线电的频带的共存的无线IP。侵略者无线电侧的频率敏捷性（而不是通过减轻干扰对受害者无线电侧的影响）可以防止侵略者时钟方案的谐波落入受害者无线电的工作频带，从而导致其性能下降。每个侵略者无线电设备基于从其他无线电接收的信息，配置其RX和/或TX链时钟生成电路的根时钟频率。

9. 发明授权

US08175549B2 Closed loop transmitter IQ calibration 有权
标题翻译：闭环发射机IQ校准
公开(公告)号：US08175549B2
公开(公告)日：2012-05-08
申请号：US12253410
申请日：2008-10-17
申请人： Roi Faust , Gregory Lerner , Nir Tal
发明人： Roi Faust , Gregory Lerner , Nir Tal
IPC分类号： H04B17/00 , H04B1/04
CPC分类号： H04B17/21 , H04B17/10
摘要： A novel and useful apparatus for and method of closed loop IQ calibration for use in a transmitter. The IQ calibration mechanism functions to provide calibration of IQ imbalance in the presence of real world RF impairments. An iterative process is used to update the gain and phase mismatch values whereby the metrics are calculated in a differential manner without the need for calculation absolute imbalance values. At each iteration, updating the gain and phase mismatch estimate requires only the direction of the correction to be determined. The direction of the correction is calculated using only the differences between output power measurements. The updated gain and phase mismatch estimates are used to update an IQ correction matrix. This process is repeated until a desired stopping criterion is reached. Gear shifting is used to ensure quick convergence of the algorithm while providing the ability to achieve any desired level of accuracy.
摘要翻译：一种用于发射机的闭环智能校准的新颖有用的装置和方法。 IQ校准机制用于在存在真实的RF损伤的情况下提供IQ不平衡的校准。迭代过程用于更新增益和相位失配值，从而以差分方式计算度量，而不需要计算绝对不平衡值。在每次迭代中，更新增益和相位失配估计只需要确定校正的方向。仅使用输出功率测量之间的差异来计算校正的方向。更新的增益和相位不匹配估计用于更新IQ校正矩阵。重复该过程直到达到期望的停止标准。齿轮移位用于确保算法的快速收敛，同时提供实现任何所需精度水平的能力。

10. 发明授权

US08121214B2 Local oscillator with non-harmonic ratio between oscillator and RF frequencies using XOR operation 有权
标题翻译：使用异或运算，振荡器与RF频率之间具有非谐波比的本机振荡器
公开(公告)号：US08121214B2
公开(公告)日：2012-02-21
申请号：US11844343
申请日：2007-08-23
申请人： Nir Tal , Yossi Tsfaty , Robert B. Staszewski , Gregory Lerner
发明人： Nir Tal , Yossi Tsfaty , Robert B. Staszewski , Gregory Lerner
IPC分类号： H04L27/10
CPC分类号： H03B21/02
摘要： A novel and useful apparatus for and method of local oscillator (LO) generation with non-integer multiplication ratio between the local oscillator and RF frequencies. The LO generation schemes presented are operative to generate I and Q square waves at a designated frequency while avoiding the well known issue of harmonic pulling. A synthesizer provides 4/3 the desired frequency fRF. This frequency is divided by two to obtain in-phase and quadrature square waves at ⅔ fRF. The in-phase signal is divided by two again to obtain in-phase and quadrature square waves at ⅓ fRF. The signals are then logically combined using XOR operations to obtain I and Q branch signals containing spectral spurs. Since the spurs are located in non-disturbing bands, they can be filtered out resulting in the desired output signal.
摘要翻译：本地振荡器（LO）生成的新颖有用的装置和方法，其本地振荡器和RF频率之间具有非整数倍乘比。所呈现的LO产生方案可用于以指定频率产生I和Q方波，同时避免众所周知的谐波拉动问题。合成器提供所需频率fRF的4/3。该频率除以2以在⅔fRF获得同相和正交方波。同相信号再次被二分频，以在1/3fRF处获得同相和正交方波。然后使用XOR操作逻辑地组合信号以获得包含光谱刺激的I和Q分支信号。由于马刺位于非干扰波段，所以它们可被滤除，从而产生所需的输出信号。

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