公开(公告)号：US20100283665A1

公开(公告)日：2010-11-11

申请号：US12435405

申请日：2009-05-05

申请人： Imran Bashir ,  Robert Bogdan Staszewski ,  Oren Eliezer ,  Meng-Chang Lee

发明人： Imran Bashir ,  Robert Bogdan Staszewski ,  Oren Eliezer ,  Meng-Chang Lee

IPC分类号： G01S7/40 ,  H04M1/00

CPC分类号： H04B1/0475 ,  H04B15/02

摘要： A digitally controlled mechanism for the minimization of the self-interference caused by an amplitude modulated signal generated within a polar transmitter to the oscillator circuit, where the carrier of that transmitter is created. A digitally controlled delay between the circuit where the signal is generated and the circuit where it is amplitude-modulated allows adjustment of the delay or phase-shift between the aggressing and victim signals. The optimal delay that is to be introduced in the path is determined, and a corresponding control word is generated to arrive at the selected delay/phase-shift.

摘要翻译： 一种数字控制的机制，用于最小化在极性发射机内产生的振幅调制信号对振荡器电路产生的自干扰，其中该发射机的载波被创建。 产生信号的电路与其被调幅的电路之间的数字控制延迟允许调整侵入信号和受干扰信号之间的延迟或相移。 确定要在路径中引入的最佳延迟，并产生相应的控制字以得到所选择的延迟/相移。

公开(公告)号：US07958408B2

公开(公告)日：2011-06-07

申请号：US11835274

申请日：2007-08-07

申请人： Elida Isabel de Obaldia ,  Dirk Leipold ,  Oren Eliezer ,  Ran Katz ,  Bogdan Staszewski

发明人： Elida Isabel de Obaldia ,  Dirk Leipold ,  Oren Eliezer ,  Ran Katz ,  Bogdan Staszewski

IPC分类号： H04B17/00

CPC分类号： H04B17/0085 ,  G01R31/2822 ,  H04B17/29 ,  H04L1/24

摘要： An on-chip receiver sensitivity test mechanism for use in an integrated RF transmitter wherein the transmitter and the receiver share the same oscillator. The mechanism obviates the need to use expensive RF signal generator test equipment with built-in modulation capability and instead permits the use of very low cost external RF test equipment. The invention utilizes circuitry already existing in the transceiver, namely the modulation circuitry and local oscillators to perform sensitivity testing. The on-chip LO is used to generate the modulated test signal that otherwise would need to be provided by expensive external RF test equipment with modulation capability. The modulated LO signal is mixed with an externally generated unmodulated CW RF signal to generate a modulated signal at IF which is subsequently processed by the remainder of the receiver chain. The recovered data bits are compared using an on-chip BER meter or counter and a BER reading is generated. The BER reading is used either externally or by an on-chip processor or controller to establish a pass/fail indication for the chip.

摘要翻译： 用于集成RF发射机的片上接收机灵敏度测试机构，其中发射机和接收机共享相同的振荡器。 该机构避免了使用具有内置调制能力的昂贵的RF信号发生器测试设备的需要，并且允许使用非常低成本的外部RF测试设备。 本发明利用已经存在于收发器中的电路，即调制电路和本地振荡器来执行灵敏度测试。 片上LO用于产生调制测试信号，否则将需要由具有调制能力的昂贵的外部RF测试设备提供。 调制的LO信号与外部产生的未调制的CW RF信号混合以在IF处产生调制信号，随后由接收器链的其余部分处理。 恢复的数据位使用片上BER计或计数器进行比较，产生BER读数。 BER读取在外部使用或由片上处理器或控制器用于建立芯片的通过/失败指示。

公开(公告)号：US20060119493A1

公开(公告)日：2006-06-08

申请号：US11297524

申请日：2005-12-07

申请人： Nir Tal ,  Sameh Rezeg ,  Robert Staszewski ,  Oren Eliezer ,  Ofer Friedman

发明人： Nir Tal ,  Sameh Rezeg ,  Robert Staszewski ,  Oren Eliezer ,  Ofer Friedman

IPC分类号： H03M3/00

CPC分类号： H03M7/3017 ,  H03M7/3022 ,  H03M7/3042

摘要： A transmitter employing a sigma delta modulator having a noise transfer function adapted to shift quantization noise outside at least one frequency band of interest. A technique is presented to synthesize the controllers within a single-loop sigma delta modulator such that the noise transfer function can be chosen arbitrarily from a family of functions satisfying certain conditions. Using the novel modulator design technique, polar and Cartesian (i.e. quadrature) transmitter structures are supported. A transmitter employing polar transmit modulation is presented that shapes the spectral emissions of the digitally-controlled power amplifier such that they are significantly and sufficiently attenuated in one or more desired frequency bands. Similarly, a transmitter employing Cartesian transmit modulation is presented that shapes the spectral emissions of a hybrid power amplifier such that they are significantly and sufficiently attenuated in one or more desired frequency bands.

摘要翻译： 一种采用具有噪声传递函数的Σ-Δ调制器的发射机，其适于在至少一个感兴趣的频带之外移位量化噪声。 提出了一种用于合成单环Σ-Δ调制器中的控制器的技术，使得噪声传递函数可以从满足某些条件的函数族中任意选择。 使用新颖的调制器设计技术，支持极坐标和笛卡尔（即正交）发射机结构。 呈现采用极性发射调制的发射机，其对数字控制的功率放大器的频谱发射进行整形，使得它们在一个或多个期望的频带中显着且充分衰减。 类似地，呈现采用笛卡尔发射调制的发射机，其对混合功率放大器的频谱发射进行整形，使得它们在一个或多个期望的频带中显着且充分衰减。

公开(公告)号：US07035750B2

公开(公告)日：2006-04-25

申请号：US10759912

申请日：2004-01-16

申请人： Elida Isabel de Obaldia ,  Chih-Ming Hung ,  Dirk Leipold ,  Oren Eliezer

发明人： Elida Isabel de Obaldia ,  Chih-Ming Hung ,  Dirk Leipold ,  Oren Eliezer

IPC分类号： G01R31/00

CPC分类号： H03K5/08 ,  H04B17/102 ,  H04B17/16 ,  H04B17/20

摘要： An on-chip test mechanism for transceiver power amplifier and oscillator frequency for use with the transmitter portion of an integrated RF transceiver. The RF output from the power amplifier in the transmitter is input to a built-in dedicated analog comparator having a configurable threshold. The threshold is adjusted to a predetermined level at which crossings start to occur at the comparator output. The comparator outputs pulses only if the power amplifier output is above a minimum configurable level. The comparator output is input to a frequency divider whose frequency output is tested by a low cost external tester to determine the actual RF frequency thereby confirming generation of the correct oscillator frequency and that the amplitude of the signal at the output of the power amplifier is sufficiently high for the configurable threshold level to be exceeded, thereby determining the compliance of the output power with its defined specifications.

摘要翻译： 用于收发器功率放大器和振荡器频率的片上测试机制，用于集成RF收发器的发射器部分。 发射机功率放大器的RF输出被输入到具有可配置阈值的内置专用模拟比较器。 阈值被调整到在比较器输出处开始发生交叉的预定电平。 仅当功率放大器输出高于最小可配置电平时，比较器才会输出脉冲。 比较器输出被输入到分频器，其频率输出由低成本外部测试仪测试以确定实际RF频率，从而确认产生正确的振荡器频率，并且功率放大器输出端的信号幅度足够 可以超过可配置的阈值电平，从而确定输出功率与其规定的规格的一致性。

公开(公告)号：US20050088215A1

公开(公告)日：2005-04-28

申请号：US10690683

申请日：2003-10-22

申请人： Udi Suissa ,  Oren Eliezer ,  Ran Katz

发明人： Udi Suissa ,  Oren Eliezer ,  Ran Katz

IPC分类号： H04L25/06 ,  H03K5/153

CPC分类号： H04L25/061

摘要： A nonlinear adaptive mechanism for amplitude adjustment and DC estimation and compensation for use in a digital receiver such as a Bluetooth GFSK receiver. The mechanism uses a feed-forward technique that can be used in a multi-stage scheme to perform both DC compensation and amplitude adjustment of an input signal for use by subsequent processing stages. In a first stage, coarse DC offset compensation is performed and the offset estimates generated are subsequently frozen. In a second stage, the incoming signal with the DC offset subtracted from it, is then scaled into a narrow predefined range of amplitudes using a scaling mechanism that works with gains and attenuations that are powers of two in order to simplify implementation. In a third stage, the scaled compensated signal is then injected again into the same DC estimation mechanism, which was previously used for DC compensation in the first stage, for further DC offset estimation and compensation (i.e. fine DC estimation and compensation).

摘要翻译： 用于幅度调整和DC估计和补偿的非线性自适应机制，用于诸如蓝牙GFSK接收机的数字接收机中。 该机制使用可以在多级方案中使用的前馈技术来执行输入信号的DC补偿和幅度调整，以供后续处理阶段使用。 在第一阶段，执行粗直流偏移补偿，随后产生的偏移估计被冻结。 在第二阶段中，使用从其中减去DC偏移的输入信号被缩放到窄的预定范围的幅度，使用缩放机制，其以增益和衰减为功效，以便简化实现。 在第三阶段，再次将经缩放的经补偿的信号注入到先前用于第一级DC补偿的同一直流估计机构中，用于进一步的直流偏移估计和补偿（即精细直流估计和补偿）。

公开(公告)号：US06246376B1

公开(公告)日：2001-06-12

申请号：US09605485

申请日：2000-06-28

申请人： Stephan Bork ,  Oren Eliezer ,  Carl M. Panasik

发明人： Stephan Bork ,  Oren Eliezer ,  Carl M. Panasik

IPC分类号： G01S502

CPC分类号： G01S5/0009 ,  G01S1/047 ,  G01S5/02 ,  G01S19/51 ,  G01S2205/008

摘要： A system and method for wireless communication between two devices allows the transfer of location information through a cellular or “BLUETOOTH” link that can be used to provide a continuous indication of estimated distance and direction relative to the two devices in communication with one another.

摘要翻译： 用于两个设备之间的无线通信的系统和方法允许通过蜂窝或“蓝牙”链路传送位置信息，该链路可用于提供相对于彼此通信的两个设备的估计距离和方向的连续指示。

公开(公告)号：US07386075B2

公开(公告)日：2008-06-10

申请号：US11178925

申请日：2005-07-12

申请人： Alexander Mostov ,  Oren Eliezer

发明人： Alexander Mostov ,  Oren Eliezer

IPC分类号： H04L27/08

CPC分类号： H03G3/3068 ,  H03G11/00 ,  H04B1/1027 ,  H04B1/18

摘要： An apparatus for and method of extending the dynamic range of a RF communications receiver. The invention provides a mechanism for controlling the gain of both the LNA and down conversion mixer in the front end portion of an RF receiver. Both the LNA and the mixer are adapted to have both low and high gain modes of operation. The control mechanism typically comprises a two bit gain control that places both the LNA and mixer in one of four operating gain mode states. The selection of the most appropriate operating gain mode state, is preferably determined in accordance with various metrics such as the received levels of the desired signal, levels of interference signals, bit error rate and receiver RSSI.

摘要翻译： 一种扩展RF通信接收机的动态范围的装置和方法。 本发明提供一种用于控制RF接收器的前端部分中的LNA和下变频混频器的增益的机构。 LNA和混频器都适用于具有低和高增益操作模式。 控制机制通常包括将LNA和混频器置于四种工作增益模式状态之一的两位增益控制。 优选地选择最合适的操作增益模式状态，优选地根据各种度量来确定，例如所需信号的接收电平，干扰信号的电平，误码率和接收机RSSI。

公开(公告)号：US20080089401A1

公开(公告)日：2008-04-17

申请号：US11860935

申请日：2007-09-25

申请人： Pao-Jen Lai ,  Khurram Waheed ,  Oren Eliezer ,  Gunvant T. Patel ,  Oscar Barraza

发明人： Pao-Jen Lai ,  Khurram Waheed ,  Oren Eliezer ,  Gunvant T. Patel ,  Oscar Barraza

IPC分类号： H04B3/46

CPC分类号： H04W24/00

摘要： One embodiment of the invention includes a method for testing the performance of a Global System for Mobile Communications (GSM) transmitter. The output of the GSM transmitter is converted to a digital signal. A power spectrum is estimated for the GSM transmitter according to the digital signal via a modified periodogram algorithm. A phase trajectory of the digital signal is determined, and an ideal phase signal is determined from the determined phase trajectory. A phase trajectory error is calculated from the determined phase trajectory and the determined ideal phase signal. A tested device may be considered compliant if the abovementioned phase error and spectral mask meet specific defined criteria, and fails the test if either of these does not meet the predefined limits. The present invention is targeted at reducing the test time and test equipment traditionally associated with the implementation of these tests.

摘要翻译： 本发明的一个实施例包括用于测试全球移动通信系统（GSM）发射机的性能的方法。 GSM发射机的输出被转换为数字信号。 通过修改的周期图算法，根据数字信号为GSM发射机估计功率谱。 确定数字信号的相位轨迹，并从所确定的相位轨迹确定理想的相位信号。 从确定的相位轨迹和确定的理想相位信号计算相位轨迹误差。 如果上述相位误差和光谱掩模满足特定的定义标准，则被测试的设备可能被认为是兼容的，并且如果其中任一个不满足预定义的限制，则测试设备失败。 本发明旨在减少传统上与这些测试的实施相关联的测试时间和测试设备。

公开(公告)号：US20080042872A1

公开(公告)日：2008-02-21

申请号：US11835274

申请日：2007-08-07

申请人： Elida de Obaldia ,  Dirk Leipold ,  Oren Eliezer ,  Ran Katz ,  Bogdan Staszewski

发明人： Elida de Obaldia ,  Dirk Leipold ,  Oren Eliezer ,  Ran Katz ,  Bogdan Staszewski

IPC分类号： G08C15/00

CPC分类号： H04B17/0085 ,  G01R31/2822 ,  H04B17/29 ,  H04L1/24

摘要： An on-chip receiver sensitivity test mechanism for use in an integrated RF transmitter wherein the transmitter and the receiver share the same oscillator. The mechanism obviates the need to use expensive RF signal generator test equipment with built-in modulation capability and instead permits the use of very low cost external RF test equipment. The invention utilizes circuitry already existing in the transceiver, namely the modulation circuitry and local oscillators to perform sensitivity testing. Tile on-chip LO is used to generate the modulated test signal that otherwise would need to be provided by expensive external RF test equipment with modulation capability. The modulated LO signal is mixed with an externally generated unmodulated CW RF signal to generate a modulated signal at IF which is subsequently processed by the remainder of the receiver chain. The recovered data bits are compared using an on-chip BER meter or counter and a BER reading is generated. The BER reading is used either externally or by an on-chip processor or controller to establish a pass/fail indication for the chip.

摘要翻译： 用于集成RF发射机的片上接收机灵敏度测试机构，其中发射机和接收机共享相同的振荡器。 该机构避免了使用具有内置调制能力的昂贵的RF信号发生器测试设备的需要，并且允许使用非常低成本的外部RF测试设备。 本发明利用已经存在于收发器中的电路，即调制电路和本地振荡器来执行灵敏度测试。 瓦片片上LO用于产生调制测试信号，否则将需要由具有调制能力的昂贵的外部RF测试设备提供。 调制的LO信号与外部产生的未调制的CW RF信号混合以在IF处产生调制信号，随后由接收机链的其余部分处理。 恢复的数据位使用片上BER计或计数器进行比较，产生BER读数。 BER读数在外部使用或由片上处理器或控制器用于建立芯片的通过/失败指示。

公开(公告)号：US20060038710A1

公开(公告)日：2006-02-23

申请号：US11203019

申请日：2005-08-11

申请人： Robert Staszewski ,  Oren Eliezer

发明人： Robert Staszewski ,  Oren Eliezer

IPC分类号： H03M3/00

CPC分类号： H03F3/24 ,  H03F2200/331 ,  H03M1/005 ,  H03M1/68 ,  H03M1/747 ,  H03M3/50 ,  H03M7/3022 ,  H04L27/361

摘要： A novel apparatus and method for a hybrid Cartesian/polar digital QAM modulator. The hybrid technique of the present invention utilizes a combination of an all digital phase locked loop (ADPLL) that features a wideband frequency modulation capability and a digitally controlled power amplifier (DPA) that features interpolation between 90 degree spaced quadrature phases. This structure is capable of performing either a polar operation or a Cartesian operation and can dynamically switch between them depending on the instantaneous value of a metric measured by a thresholder/router. In this manner, the disadvantages of each modulation technique are avoided while the benefits of each are exploited.