公开(公告)号：EP0611099A1

公开(公告)日：1994-08-17

申请号：EP94300791.4

申请日：1994-02-02

申请人： AT&T Corp.

发明人： Arntz, Bernard James

IPC分类号： H03H7/18

CPC分类号： H03H7/18

摘要： A method and apparatus for imparting a positive phase slope (i.e., a negative group delay) to a narrowband signals is disclosed which adjuststhe phases of the various frequency components of a signal in a manner opposite to that of a delay line. The invention also permits the amount of phase slope to be adjusted, electronically, without the need for electro-mechanical apparatus or the interchange of cables. Furthermore, embodiments of the present invention are advantageous in that at the center of the operating band they maintain the phase of the delayed signal. These results are obtained in an illustrative embodiment of the present invention which divides the signal to be delayed into two signals which traverse different signal paths (715, 719) and are recombined in a signal combiner (729). The first signal path advantageously comprises a gain control block (717). The second signal path advantageously comprises a second gain control block (725) and a fixed line delay (719) which is not found in the first signal path. The amount of phase slope imparted to the signal can be adjusted by varying the gain (or attenuation) of the respective gain control blocks (717, 725).

摘要翻译： 该约会。 对输入信号的处理，其包括输入振幅和以每秒W0弧度的正弦分量，并且具有一个信号分配器E.G. 一混合耦合器，用于产生两个信号。 分频信号，在此基础上被施加到两个信号路径的输入信号，在所有已respectivement振幅。 两个分开的信号是输入信号的每一个模拟表示。 混频器接收来自respectivement信号路径的两个信号，并且在产生输出信号，其具有基于所述两个信号的和振幅。 在第二信号路径中的延迟元件使得接近pi.N / W0秒比第一信号路径，其中N是正奇整数更长的路径。 在第二信号路径中的衰减器降低所述第二信号w.r.t. 所述第一信号。 输出幅度近似等于输入幅度。

公开(公告)号：EP0638995B1

公开(公告)日：1999-01-07

申请号：EP94305746.3

申请日：1994-08-03

申请人： AT&T Corp.

发明人： Arntz, Bernard James

IPC分类号： H03F3/195 ,  H03F1/42

CPC分类号： H03F3/45071 ,  H03D1/10

公开(公告)号：EP0768752B1

公开(公告)日：2001-08-01

申请号：EP96307331.7

申请日：1996-10-09

申请人： AT&T Corp.

发明人： Arntz, Bernard James

IPC分类号： H03F1/32 ,  H03F3/60

CPC分类号： H03F3/602 ,  H03F1/3229 ,  H03F2200/198

公开(公告)号：EP0594358A3

公开(公告)日：1994-06-22

申请号：EP93308178.8

申请日：1993-10-13

申请人： AT&T Corp.

发明人： Arntz, Bernard James ,  Nitz, William Allen ,  Ocenasek, Josef

IPC分类号： H03G3/20 ,  H03F1/32

CPC分类号： H03G3/3042 ,  H03F1/34 ,  H04L27/2621 ,  H04L27/2637

摘要： Apparatus for controlling a system including a linear amplifier (109) processing a plurality of carrier signals (111-114) of a multi channel carrier system alters the phases (by 131-134) of one or more sources of the multi-channel signals in response to a detected peak envelope power (in 153) or of a peak to average power (in 152) ratio at regular scheduled intervals. This reduces the peak envelope power to average envelope power ratio and enables the reduction in the power rating required by the amplifiers handling the multi-channel signal.

摘要翻译： 用于控制包括处理多信道载波系统的多个载波信号（111-114）的线性放大器（109）的系统的装置改变多信道信号的一个或多个源的相位（由131-134） 响应于检测到的峰值包络功率（153）或峰值到平均功率（152）的比例。 这将峰值包络功率降低到平均包络功率比，并且能够降低处理多信道信号的放大器所需的额定功率。

公开(公告)号：EP0594358B1

公开(公告)日：1998-03-04

申请号：EP93308178.8

申请日：1993-10-13

申请人： AT&T Corp.

发明人： Arntz, Bernard James ,  Nitz, William Allen ,  Ocenasek, Josef

IPC分类号： H03G3/20 ,  H03F1/32

CPC分类号： H03G3/3042 ,  H03F1/34 ,  H04L27/2621 ,  H04L27/2637

公开(公告)号：EP0594358A2

公开(公告)日：1994-04-27

申请号：EP93308178.8

申请日：1993-10-13

申请人： AT&T Corp.

发明人： Arntz, Bernard James ,  Nitz, William Allen ,  Ocenasek, Josef

IPC分类号： H03G3/20 ,  H03F1/32

CPC分类号： H03G3/3042 ,  H03F1/34 ,  H04L27/2621 ,  H04L27/2637

摘要： Apparatus for controlling a system including a linear amplifier (109) processing a plurality of carrier signals (111-114) of a multi channel carrier system alters the phases (by 131-134) of one or more sources of the multi-channel signals in response to a detected peak envelope power (in 153) or of a peak to average power (in 152) ratio at regular scheduled intervals. This reduces the peak envelope power to average envelope power ratio and enables the reduction in the power rating required by the amplifiers handling the multi-channel signal.

摘要翻译： 一种用于控制一个系统，它包括一个线性放大器（109）处理的载波信号的多信道载波系统青睐的多信道信号的一个或多个源的多个（111-114）的相位（由131-134） 响应于检测到的峰值包络功率（在153）或以规则的预定的时间间隔一个峰均功率（在152）比。 这降低峰值包络功率与平均功率之比和包络启用在由放大器处理多声道信号所需的额定功率的降低。

公开(公告)号：EP0768752A1

公开(公告)日：1997-04-16

申请号：EP96307331.7

申请日：1996-10-09

申请人： AT&T Corp.

发明人： Arntz, Bernard James

IPC分类号： H03F1/32 ,  H03F3/60

CPC分类号： H03F3/602 ,  H03F1/3229 ,  H03F2200/198

摘要： In a preferred embodiment, a low distortion power sharing amplifier network capable of amplifying a plurality of input signals includes a plurality of amplifiers, each for amplifying an approximately equal amount of RF signal power. The power sharing arrangement prevents any one of the amplifiers in the network from operating too deep into saturation even when the plurality of input signals vary widely in power. Distortion is reduced by coupling at least one feed-forward loop to the amplifier network.

摘要翻译： 在优选实施例中，能够放大多个输入信号的低失真功率共享放大器网络包括多个放大器，每个放大器用于放大近似等量的RF信号功率。 功率共享布置防止了即使当多个输入信号在功率上变化很大时，网络中的任何一个放大器也不会太深地饱和。 通过将至少一个前馈回路耦合到放大器网络来减小失真。

公开(公告)号：EP0638995A1

公开(公告)日：1995-02-15

申请号：EP94305746.3

申请日：1994-08-03

申请人： AT&T Corp.

发明人： Arntz, Bernard James

IPC分类号： H03F3/195 ,  H03F1/42

CPC分类号： H03F3/45071 ,  H03D1/10

摘要： A DC coupled amplifier (207) fed by an RF detector (205) has greater dynamic range capabilities than techniques in the prior art. An illustrative embodiment of the present invention advantageously comprises a low-offset voltage, low-offset current differential amplifier (207) fed by an RF detector (205) having a fifth lead (223) from the reference voltage node (231) within the RF detector.

摘要翻译： 由RF检测器（205）馈送的DC耦合放大器（207）具有比现有技术中的技术更大的动态范围能力。 本发明的说明性实施例有利地包括由RF检测器（205）馈送的低失调电压低偏移电流差分放大器（207），其具有来自RF内的参考电压节点（231）的第五引线（223） 探测器。