公开(公告)号：EP1079516A2

公开(公告)日：2001-02-28

申请号：EP00306694.1

申请日：2000-08-07

申请人： LUCENT TECHNOLOGIES INC.

发明人： Ghanadan, Reza ,  Myer, Robert Evan

IPC分类号： H03F1/32

CPC分类号： H03F1/3235 ,  H03F2201/3212

摘要： A gain and phase control system performs a gain (or phase) adjustment based on the results of a previous gain (or phase) adjustment after an intervening phase (or gain) adjustment. A gain adjustment is based on the results of a previous gain adjustment rather than on the results of an intervening phase adjustment. A phase adjustment is based on the results of a previous phase adjustment rather than the results of an intervening gain adjustment. As such, the above-mentioned increase in error signal does not occur because a gain adjustment is based on the results of the previous gain adjustment, and a phase adjustment is based on the results of the previous phase adjustments. In accordance with another aspect of the present invention, the gain and phase control system makes a gain (or phase) adjustment in parallel with detecting the results from a previous phase (or gain) adjustment, thereby taking advantage of the delay between adjustment and detection of the resulting error signal to improve the convergence rate. For example, the gain and phase control system can perform single alternating gain and phase adjustments and make a gain (or phase) adjustment while detecting the error signal resulting from a preceding phase (or gain) adjustment. When the error signal resulting from the gain (or phase) adjustment is being detected, the gain and phase control system makes a phase (or gain) adjustment using the results detected from the preceding phase (or gain) adjustment.

摘要翻译： 增益和相位控制系统在中间相位（或增益）调整之后基于先前增益（或相位）调整的结果执行增益（或相位）调整。 增益调整基于先前增益调整的结果，而不是中间相位调整的结果。 相位调整基于先前相位调整的结果，而不是中间增益调整的结果。 因此，由于增益调整是基于先前的增益调整的结果而不会发生上述的误差信号的增加，并且相位调整基于先前的相位调整的结果。 根据本发明的另一方面，增益和相位控制系统与检测前一相位（或增益）调整的结果并行地进行增益（或相位）调整，从而利用调整和检测之间的延迟 产生的误差信号提高收敛速度。 例如，增益和相位控制系统可以执行单次交变增益和相位调整，并在检测由前一相位（或增益）调整产生的误差信号的同时进行增益（或相位）调整。 当检测到增益（或相位）调整产生的误差信号时，增益和相位控制系统使用从前一相位（或增益）调整检测到的结果进行相位（或增益）调整。

公开(公告)号：EP0991183A2

公开(公告)日：2000-04-05

申请号：EP99307450.9

申请日：1999-09-21

申请人： LUCENT TECHNOLOGIES INC.

发明人： Myer, Robert Evan

IPC分类号： H03F1/32

CPC分类号： H03F1/3229

摘要： A control system comprises an electrical circuit (108) that produces distortion where the electrical circuit has a frequency band of operation. A pilot modulated carrier signal (produced by 182, 184) is frequency hopped about the frequency band of operation. The hopping pilot modulated carrier signal does not interfere with any signal applied to or generated by the electrical circuit as it is not at any time located within the frequency band of operation. Information obtained from the hopping pilot modulated carrier is provided to the control system which uses such information to cancel the distortion produced by the electrical circuit.

摘要翻译： 电路的一个控制系统，包括（108）确实产生失真的电路有一个工作频带。 导频调制的载波信号（由182产生的，184）是跳频关于操作的频带。 跳频导频调制的载波信号不与施加到或该电路所产生的，因为它不是在位于操作的频带内的任何时间的任何干扰信号。 从跳频导频调制的载波而获得的信息被提供到使用的搜索信息来抵消该电路产生的失真的控制系统。

公开(公告)号：EP0986169A2

公开(公告)日：2000-03-15

申请号：EP99306677.8

申请日：1999-08-23

申请人： LUCENT TECHNOLOGIES INC.

发明人： Myer, Robert Evan

IPC分类号： H03F1/32

CPC分类号： H03F1/3235

摘要： A calibration system for a feed forward distortion reduction system periodically uses a pilot signal to calibrate the pilotless feed forward reduction system. In calibrating the feed forward distortion reduction system, the calibration system periodically injects the pilot signal onto a signal path, for example, when no signal is present on the signal path. A portion of the pilot signal on the signal path is provided to a feed forward path of the feed forward distortion reduction system. The pilot signal on the feed forward path is combined with the pilot signal on the signal path, and the calibration system adjusts the relative phase and amplitude between the pilot signal on the feed forward path and the pilot signal on the signal path to achieve the desired combination of the pilot signals. Thus, the calibration system calibrates the feed forward distortion reduction system to provide improved combination of the pilot signals, thereby improving the distortion reduction for the feed forward distortion reduction system.

摘要翻译： 用于一个前馈失真减小系统的校准系统定期使用的导频信号来校准无人驾驶前馈减小系统在校准前馈失真减小系统，所述校准系统周期性注入导频信号到信号路径中，例如，当 不存在信号的信号路径上。在信号路径上的导频信号的一部分被提供给所述前馈失真减小系统的前馈路径。前馈路径上的导频信号与所述导频信号被组合 信号路径，和校准系统的bestimmt前馈路径上的导频信号和所述信号路径上的导频信号，以实现所述导频信号的所希望的组合之间的相对相位和幅度。 因此，校准系统校准前馈失真减小系统提供改进的导频信号的组合，从而改善了前馈失真减小系统中的失真减小。

公开(公告)号：EP0986168A2

公开(公告)日：2000-03-15

申请号：EP99306648.9

申请日：1999-08-23

申请人： LUCENT TECHNOLOGIES INC.

发明人： Myer, Robert Evan

IPC分类号： H03F1/32

CPC分类号： H03F1/3229

摘要： A pilotless feed forward distortion reduction system (60) uses phase and gain control based on the phases and amplitudes of combining signals prior to a distortion isolation point (78) to maintain the relationship between the phase and amplitudes of combining signals. For example, the feed forward arrangement receives a signal to be amplified on a main signal path and replicates the signal onto a main signal path (72) and a feed forward path (74). The signal on the main signal path is applied to a gain & phase circuit (75). The output of gain & phase circuit is applied to the amplifier (62) whose output comprises the amplified signal and distortion signals produced by the amplifier. A portion of the output of the amplifier is placed on a coupling path (76) and combined at the distortion isolation point (78) with a delayed version of the signal on the second path (74) to isolate the distortion produced from the amplifier. The gain & phase circuit (75) is controlled to adjust the gain and phase of the signal such that the signal at the distortion isolation point is substantially the inverse (equal in amplitude but 180° out of phase) of the delayed input signal on the feed forward path. The control signal appearing on the control path (84) of the gain & phase circuit is derived from the portion of the amplified signal with distortion on the coupling path and the delayed version of the signal on the feed forward path. Thus, a pilot signal is not needed because the desired relationship between the phase and gain of the combining signals is maintained to achieve sufficient cancellation of the signal and to isolate at the distortion produced by the amplifier after the distortion isolation point.

摘要翻译： 无导频前馈失真减小系统（60）使用基于在失真隔离点（78）之前的组合信号的相位和幅度的相位和增益控制来维持组合信号的相位和幅度之间的关系。 例如，前馈装置在主信号路径上接收要放大的信号，并将信号复制到主信号路径（72）和前馈路径（74）上。 主信号路径上的信号被施加到增益和相位电路（75）。 增益和相位电路的输出被施加到放大器（62），该放大器的输出包括被放大的信号和由放大器产生的失真信号。 放大器的输出的一部分放置在耦合路径（76）上，并且在失真隔离点（78）处与第二路径（74）上的信号的延迟版本组合以隔离从放大器产生的失真。 控制增益和相位电路（75）以调整信号的增益和相位，使得失真隔离点处的信号基本上是延迟输入信号的反相（幅度相等但是180°相位） 前馈路径。 出现在增益和相位电路的控制路径（84）上的控制信号是从耦合路径失真的放大信号的部分和前馈路径上的信号的延迟版本导出的。 因此，不需要导频信号，因为保持组合信号的相位和增益之间的期望的关系，以实现信号的充分消除并且在失真隔离点之后由放大器产生的失真隔离。

公开(公告)号：EP0851606B1

公开(公告)日：2000-02-23

申请号：EP97310010.0

申请日：1997-12-11

申请人： LUCENT TECHNOLOGIES INC.

发明人： Bi, Qi ,  Myer, Robert Evan

IPC分类号： H04B7/155 ,  H04B7/26

CPC分类号： H04B7/15578 ,  H04B1/525

公开(公告)号：EP0973254A1

公开(公告)日：2000-01-19

申请号：EP99305351.1

申请日：1999-07-06

申请人： LUCENT TECHNOLOGIES INC.

发明人： Kannell, George Kenneth ,  Myer, Robert Evan ,  Sreenath, Krishnamurthy

IPC分类号： H03D7/00

CPC分类号： H03D7/00 ,  H03C1/06

摘要： A method for reducing the level of an undesired signal, generated through a frequency converter device, is implemented by a local oscillator (hereinafter "LO") leak cancellation circuit. A feedback correction loop, for a radio frequency (RF) transmitter or receiver, reduces an undesired local oscillator leak generated through a single input frequency converter device (20), such as a mixer, by a unique detection circuit (30). A unique nulling circuit (40) is also implemented for a multiple input frequency converter device, such as a quadrature modulator.

摘要翻译： 通过本地振荡器（以下称为“LO”）泄漏消除电路来实现用于降低由变频器装置产生的不需要信号的电平的方法。 用于射频（RF）发射器或接收器的反馈校正环路通过唯一的检测电路（30）减少由单个输入变频器装置（20）（例如混频器）产生的不期望的本地振荡器泄漏。 对于诸如正交调制器的多输入变频器设备也实现了独特的归零电路（40）。

公开(公告)号：EP1079517A3

公开(公告)日：2004-05-19

申请号：EP00306714.7

申请日：2000-08-07

申请人： LUCENT TECHNOLOGIES INC.

发明人： Ghanadan, Reza ,  Myer, Robert Evan

IPC分类号： H03F1/32

CPC分类号： H03F1/3235

摘要： An adaptive gain and/or phase control system adapts the gain and/or phase adjustment resolution to provide improved performance. For example, the adaptive gain and/or phase control system can dynamically adjust the adjustment resolution for gain and/or phase adjustments as a function of the error signal(s). In response to a large error signal(s) (far from the null), the adaptive gain/or phase control system decreases the adjustment resolution, resulting in a faster convergence rate. In a feed forward distortion reduction system, decreasing the adjustment resolution improves the transient response of the amplifier (for example, given any set of operating conditions, how quickly the amplifier responds to a changing input). As phase or gain adjustments are made to approach the null, the error signal reduces, and the adaptive distortion reduction system increases the adjustment resolution. By increasing the adjustment resolution as the error signal approaches the null, finer phase or gain adjustments can be made which further reduce the error signal. For example, in a feed forward distortion reduction system, such a scheme prevents the error signal from repeatedly jumping over the null due to limited resolution without sacrificing the transient response of the amplifier.

公开(公告)号：EP0991181A3

公开(公告)日：2003-01-22

申请号：EP99307474.9

申请日：1999-09-21

申请人： LUCENT TECHNOLOGIES INC.

发明人： Myer, Robert Evan

IPC分类号： H03D13/00

CPC分类号： H03D13/007

摘要： The present invention is a method and an apparatus for measuring phase differences between signals A and B using an absolute voltage value for each phase difference between ±180°. This is accomplished using a third signal C, which is a signal having a phase approximately equal to the average phase between signals A and B. Signals C and A are subsequently amplitude limited and mixed to produce a fourth signal D, which is a signal having associated an absolute voltage value for each degree of phase difference between ±180° for signals A and B.

公开(公告)号：EP1186895A1

公开(公告)日：2002-03-13

申请号：EP01302470.8

申请日：2001-03-19

申请人： LUCENT TECHNOLOGIES INC.

发明人： Myer, Robert Evan

IPC分类号： G01R1/067

CPC分类号： G01R1/06772 ,  G01R1/06738 ,  G01R1/07

摘要： An inexpensive RF test probe (10) provides consistent monitoring of an RF signal while having minimal effect on the circuit under test. In one embodiment, an RF test probe comprises a return conductor and a probing conductor (22). The probing conductor is positioned within an insulator and a termination such as a 50 ohm resistor is electrically positioned between the ground conductor and probing conductor. The probe is used by placing a portion of the insulating material surrounding the probe conductor in contact with a circuit such as an RF microstrip (12) carrying an RF signal to be monitored.

摘要翻译： 廉价的RF测试探针（10）可以对射频信号进行一致的监视，同时对被测电路的影响很小。 在一个实施例中，RF测试探针包括返回导体和探测导体（22）。 探测导体位于绝缘体内，诸如50欧姆电阻之类的终端电气位于接地导体和探测导体之间。 通过将探针导体周围的绝缘材料的一部分放置在与诸如携带要监视的RF信号的RF微带（12）的电路接触来使用探针。

公开(公告)号：EP1079516A3

公开(公告)日：2001-10-31

申请号：EP00306694.1

申请日：2000-08-07

申请人： LUCENT TECHNOLOGIES INC.

发明人： Ghanadan, Reza ,  Myer, Robert Evan

IPC分类号： H03F1/32

CPC分类号： H03F1/3235 ,  H03F2201/3212

摘要： A gain and phase control system performs a gain (or phase) adjustment based on the results of a previous gain (or phase) adjustment after an intervening phase (or gain) adjustment. A gain adjustment is based on the results of a previous gain adjustment rather than on the results of an intervening phase adjustment. A phase adjustment is based on the results of a previous phase adjustment rather than the results of an intervening gain adjustment. As such, the above-mentioned increase in error signal does not occur because a gain adjustment is based on the results of the previous gain adjustment, and a phase adjustment is based on the results of the previous phase adjustments. In accordance with another aspect of the present invention, the gain and phase control system makes a gain (or phase) adjustment in parallel with detecting the results from a previous phase (or gain) adjustment, thereby taking advantage of the delay between adjustment and detection of the resulting error signal to improve the convergence rate. For example, the gain and phase control system can perform single alternating gain and phase adjustments and make a gain (or phase) adjustment while detecting the error signal resulting from a preceding phase (or gain) adjustment. When the error signal resulting from the gain (or phase) adjustment is being detected, the gain and phase control system makes a phase (or gain) adjustment using the results detected from the preceding phase (or gain) adjustment.

摘要翻译： 增益和相位控制系统基于中间相位（或增益）调整之后的先前增益（或相位）调整的结果来执行增益（或相位）调整。 增益调整基于前一次增益调整的结果，而不是中间相位调整的结果。 相位调整基于前一个相位调整的结果，而不是中间增益调整的结果。 如此，由于增益调整基于先前的增益调整的结果并且相位调整基于先前的相位调整的结果，所以不会发生上述错误信号的增加。 根据本发明的另一方面，增益和相位控制系统与检测来自先前相位（或增益）调整的结果并行地进行增益（或相位）调整，从而利用调整和检测之间的延迟 由此产生的误差信号来提高收敛速度。 例如，增益和相位控制系统可以执行单个交替增益和相位调整，并且在检测由前一个相位（或增益）调整导致的误差信号的同时进行增益（或相位）调整。 当检测到由增益（或相位）调整产生的错误信号时，增益和相位控制系统使用从前一阶段（或增益）调整检测到的结果进行相位（或增益）调整。