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21.发明公开Nested feed forward distortion reduction system 有权Geschachteltesvorwärtsgekoppeltes系统zur Reduzierung von Verzerrungen
公开(公告)号：EP1003278A2
公开(公告)日：2000-05-24
申请号：EP99308925.9
申请日：1999-11-09
发明人： Myer, Robert Evan
IPC分类号： H03F1/32
CPC分类号： H03F1/3235
摘要： A nested feed forward distortion reduction system, which reduces the distortion from a main amplifier (62) on a main signal path, uses a nested feed forward arrangement (82) for the correction amplifier (86) to reduce the distortion produced from the correction amplifier. In reducing the distortion from the correction amplifier(s) and using progressively higher quality correction amplifier(s), the nested feed forward arrangement produces an improved, more stable representation of the distortion from the main amplifier, thereby alleviating the need for variable gain and/or phase control in producing amplified signal with reduced distortion.
摘要翻译： 减少主信号路径上的主放大器（62）的失真的嵌套前馈失真减少系统使用用于校正放大器（86）的嵌套前馈布置（82）来减少由校正放大器（62）产生的失真 。 在减少来自校正放大器的失真并使用逐渐更高质量的校正放大器时，嵌套的前馈布置从主放大器产生失真的改进的，更稳定的表示，从而减轻对可变增益的需要， /或产生放大信号的相位控制，具有减小的失真。
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22.发明公开Sweep pilot technique for a control system that reduces distortion produced by electrical circuits 有权Pilotsignalwobbeltechnik所造成的电路用于减少失真的控制系统
公开(公告)号：EP0991182A2
公开(公告)日：2000-04-05
申请号：EP99307440.0
申请日：1999-09-21
发明人： Myer, Robert Evan , Patel, Mohan
IPC分类号： H03F1/32
CPC分类号： H03F1/3235
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 171,188) is generated and is cause to traverse across the frequency band of operation of the electrical circuit. Information obtained from the traversing pilot modulated carrier signal when it is determined that there is no interference between any signal applied to or generated by the electrical circuit is used by the control system to substantially cancel the distortion.
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23.发明公开Improved pilot detection for a control system that reduces distortion produced by electrical circuits 有权Pilottondetektionsschaltung用于控制系统用于减小由电电路产生均衡
公开(公告)号：EP0923193A1
公开(公告)日：1999-06-16
申请号：EP98309849.2
申请日：1998-12-01
发明人： Myer, Robert Evan
IPC分类号： H03F1/32
CPC分类号： H03F1/3235
摘要： The present invention provides an improved pilot detection technique for a control system (200) comprising an electrical circuit (108) that produces distortion and which applies the pilot signal to the electrical circuit and uses information obtained from the pilot signal to cancel the distortion from the electrical circuit.
摘要翻译： 对本发明的改进的导频检测技术提供了一个控制系统（200），包括电路（108）并引起失真和导频信号施加到该电路，并使用从导频信号获得的信息以消除由所述失真 电路。
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25.发明公开Double side band pilot technique for a control system that reduces distortion produced by electrical circuits 有权用于减小由该电路失真所生成的控制系统的双边带导频技术
公开(公告)号：EP0991210A3
公开(公告)日：2003-05-07
申请号：EP99307452.5
申请日：1999-09-21
发明人： Myer, Robert Evan
CPC分类号： H03F1/3235 , H03F2201/3212
摘要： A control system comprises an electrical circuit (108) that produces distortion where the electrical circuit has a frequency band of operation. Double side band pilot signals (produced by 154, 156) are located slightly outside the boundaries of the frequency band of operation so as not to interfere with any signals within the frequency band of operation, but still provide information that the control system uses to substantially cancel the distortion.
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。 双边带导频信号（由154产生的，156）在手术的频带的边界之外略微定位成不与手术的频带内的任何信号产生干扰，但仍提供信息那样的控制系统使用，以基本上 取消失真。
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公开(公告)号：EP1017163B1
公开(公告)日：2002-05-08
申请号：EP99309847.4
申请日：1999-12-07
发明人： Myer, Robert Evan
IPC分类号： H03F1/32
CPC分类号： H03F1/3229
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27.发明公开Sweep pilot technique for a control system that reduces distortion produced by electrical circuits 有权Pilotsignalwobbeltechnik所造成的电路用于减少失真的控制系统
公开(公告)号：EP0991182A3
公开(公告)日：2001-11-14
申请号：EP99307440.0
申请日：1999-09-21
发明人： Myer, Robert Evan , Patel, Mohan
IPC分类号： H03F1/32
CPC分类号： H03F1/3235
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 171,188) is generated and is cause to traverse across the frequency band of operation of the electrical circuit. Information obtained from the traversing pilot modulated carrier signal when it is determined that there is no interference between any signal applied to or generated by the electrical circuit is used by the control system to substantially cancel the distortion.
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28.发明公开Frequency hop pilot technique for a control system that reduces distortion produced by electrical circuits 有权导频技术与跳频引起的电气电路，用于减少失真的控制系统
公开(公告)号：EP0991183A3
公开(公告)日：2001-10-31
申请号：EP99307450.9
申请日：1999-09-21
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.
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公开(公告)号：EP0986168A3
公开(公告)日：2001-05-23
申请号：EP99306648.9
申请日：1999-08-23
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.
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30.发明授权Method and apparatus for extending the spurious free dynamic range of an analog-to-digital converter 有权为延伸的模拟数字转换器的无寄生动态范围的方法和装置
公开(公告)号：EP0967725B1
公开(公告)日：2001-05-23
申请号：EP99304453.6
申请日：1999-06-08
IPC分类号： H03M1/08
CPC分类号： H03M1/0614 , H03M1/14 , H03M1/181
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