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公开(公告)号：JP2001358541A
公开(公告)日：2001-12-26
申请号：JP2001134949
申请日：2001-05-02
Applicant: LUCENT TECHNOLOGIES INC
Inventor： HOFFMANN SHLOMO
Abstract: PROBLEM TO BE SOLVED: To improve the coupling of corresponding components by adjusting both or independently one of a relative phase and/or amplitude between signal components and a relative phase and/or amplitude of distortion components. SOLUTION: The signal amplifier system (50) has a first and second amplifier paths (52, 54) for carrying duplicates of signal components. On the first amplifier path, a first amplifier amplifies the signal components to generate distortion components. Duplicates of the amplified signal components and distortion are given to a coupling path (58). On the coupling path, the amplitude and/or phase of the distortion components are/is adjusted without adjusting corresponding to the phase and/or amplitude of the signal components, after canceling the signal components to separate the distortion components. The adjusted distortion components are coupled with a second path where a second amplifier amplifies the signal components and the adjusted distortion components.
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Patent Agency Ranking
公开(公告)号：JP2001036355A
公开(公告)日：2001-02-09
申请号：JP2000171840
申请日：2000-06-08
Applicant: LUCENT TECHNOLOGIES INC
Inventor： HOFFMANN SHLOMO , VELLA-COLEIRO GEORGE P
Abstract: PROBLEM TO BE SOLVED: To attain a continuous automation control mechanism for improving inexact prediction caused by nonuniform gain, intermodulation distortion(IMD) performance or temperature response of a low distortion high frequency amplifier and to attain an integrated onboard control mechanism, capable of performing control at the job site during normal operation of the amplifier. SOLUTION: A low distortion amplifier 100 is integrated with an optimization circuit for executing automation control of the amplifier 100. The optimization circuit has an extraction circuit 101 designed so as to extract various signals indicating operations of the amplifier under present operating conditions. A control circuit 200 to use information received from the extracting circuit 101 determines suitable control setting of a main component in the amplifier 100, corresponding to the present operating conditions. The optimization circuit guarantees that the output of the amplifier has a desired signal level, while guaranteeing that the IMD of output is minimized or removed under all the operating conditions.
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公开(公告)号：CA2310344C
公开(公告)日：2002-10-22
申请号：CA2310344
申请日：2000-05-31
Applicant: LUCENT TECHNOLOGIES INC
Inventor： VELLA-COLEIRO GEORGE PHILIP , HOFFMANN SHLOMO
Abstract: A low distortion amplifier with an optimization circuit that performs a n automated alignment of the amplifier is provided. The optimization circuit includes an extraction circuit designed to extract various signals indicative of the operation of the amplifier under the current operating conditions. A control circuit using information received from the extraction circuit determines the appropriate control settings for key components of the amplifier for the current operating conditions. The optimization circuit ensures that the amplifier output has a desired signal level while also ensuring that the output has minimum or no intermodulation distortion under all operating conditions.
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公开(公告)号：CA2310344A1
公开(公告)日：2000-12-08
申请号：CA2310344
申请日：2000-05-31
Applicant: LUCENT TECHNOLOGIES INC
Inventor： HOFFMANN SHLOMO , VELLA-COLEIRO GEORGE PHILIP
Abstract: A low distortion amplifier with an optimization circuit that performs a n automated alignment of the amplifier is provided. The optimization circuit includes an extraction circuit designed to extract various signals indicative of the operation of the amplifier under the current operating conditions. A control circuit using information received from the extraction circuit determines the appropriate control settings for key components of the amplifier for the current operating conditions. The optimization circuit ensures that the amplifier output has a desired signal level while also ensuring that the output has minimum or no intermodulation distortion under all operating conditions.
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公开(公告)号：BR0003101A
公开(公告)日：2001-01-30
申请号：BR0003101
申请日：2000-05-31
Applicant: LUCENT TECHNOLOGIES INC
Inventor： HOFFMANN SHLOMO , VELLA-COLEIRO GEORGE PHILIP
Abstract: A low distortion amplifier with an optimization circuit that performs an automated alignment of the amplifier is provided. The optimization circuit includes an extraction circuit designed to extract various signals indicative of the operation of the amplifier under the current operating conditions. A control circuit using information received from the extraction circuit determines the appropriate control settings for key components of the amplifier for the current operating conditions. The optimization circuit ensures that the amplifier output has a desired signal level while also ensuring that the output has minimum or no intermodulation distortion under all operating conditions.
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公开(公告)号：AU3786000A
公开(公告)日：2000-12-14
申请号：AU3786000
申请日：2000-06-02
Applicant: LUCENT TECHNOLOGIES INC
Inventor： HOFFMANN SHLOMO , VELLA-COLEIRO GEORGE PHILIP
Abstract: A low distortion amplifier with an optimization circuit that performs an automated alignment of the amplifier is provided. The optimization circuit includes an extraction circuit designed to extract various signals indicative of the operation of the amplifier under the current operating conditions. A control circuit using information received from the extraction circuit determines the appropriate control settings for key components of the amplifier for the current operating conditions. The optimization circuit ensures that the amplifier output has a desired signal level while also ensuring that the output has minimum or no intermodulation distortion under all operating conditions.
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