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公开(公告)号：WO2007001695A3
公开(公告)日：2007-06-28
申请号：PCT/US2006020148
申请日：2006-05-24
Applicant: HARRIS CORP
Inventor： DITTMER TIMOTHY WILFRED
CPC classification number: H04B1/66
Abstract: Systems and methods are provided for providing a hybrid signal having a reduced crest factor. An analog exciter generates an analog signal having an associated phase. A digital exciter generates a digital signal that assumes one of a plurality of vector states at discrete sampling times associated with the hybrid signal. Each of the plurality of vector states has an associated phase. The digital signal and the analog signal are combined to provide the hybrid signal. The hybrid signal is compressed maximally when the digital signal assumes a vector state that is in phase with the analog signal .
Abstract translation: 提供系统和方法用于提供具有减小的波峰因数的混合信号。 模拟激励器产生具有相关相位的模拟信号。 数字激励器产生数字信号，该数字信号在与混合信号相关联的离散采样时间处呈现多个矢量状态中的一个。 多个矢量状态中的每一个具有关联的相位。 数字信号和模拟信号被组合以提供混合信号。 当数字信号呈现与模拟信号同相的矢量状态时，混合信号被最大限度地压缩。
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公开(公告)号：WO2007120568A3
公开(公告)日：2008-08-14
申请号：PCT/US2007008523
申请日：2007-04-05
Applicant: HARRIS CORP
Inventor： CABRERA GEORGE , DITTMER TIMOTHY WILFRED , DUELLO WAYNE DOUGLAS
CPC classification number: H04B1/0483
Abstract: Systems and methods are provided for generating dual outputs in a digital exciter system. A first signal path (34) produces one of a frequency modulated audio signal, a digital information signal, and a signal comprising both frequency modulated audio and digital information A second signal path (36) produces one of a frequency modulated audio signal, a digital information signal, and a signal comprising both frequency modulated audio and digital information. A main exciter output provides one of the signal produced at the first signal path and the signal produced at the second signal path to an associated first destination (42). An auxiliary exciter output provides one of the signal produced at the first signal path and the signal produced at the auxiliary signal path to an associated second signal destination (44).
Abstract translation: 提供了用于在数字激励器系统中产生双输出的系统和方法。 第一信号路径（34）产生调频音频信号，数字信息信号和包括调频音频和数字信息两者的信号。第二信号路径（36）产生调频音频信号，数字 信息信号，以及包括调频音频和数字信息的信号。 主激励器输出提供在第一信号路径处产生的信号和在第二信号路径处产生到相关联的第一目的地（42）的信号之一。 辅助激励器输出提供在第一信号路径处产生的信号和在辅助信号路径处产生的信号到相关联的第二信号目的地（44）之一。
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公开(公告)号：WO2007120568B1
公开(公告)日：2008-10-09
申请号：PCT/US2007008523
申请日：2007-04-05
Applicant: HARRIS CORP
Inventor： CABRERA GEORGE , DITTMER TIMOTHY WILFRED , DUELLO WAYNE DOUGLAS
CPC classification number: H04B1/0483
Abstract: Systems and methods are provided for generating dual outputs in a digital exciter system. A first signal path (34) produces one of a frequency modulated audio signal, a digital information signal, and a signal comprising both frequency modulated audio and digital information A second signal path (36) produces one of a frequency modulated audio signal, a digital information signal, and a signal comprising both frequency modulated audio and digital information. A main exciter output provides one of the signal produced at the first signal path and the signal produced at the second signal path to an associated first destination (42). An auxiliary exciter output provides one of the signal produced at the first signal path and the signal produced at the auxiliary signal path to an associated second signal destination (44).
Abstract translation: 提供了用于在数字激励器系统中产生双输出的系统和方法。 第一信号路径（34）产生频率调制音频信号，数字信息信号和包括调频音频和数字信息二者的信号中的一个。第二信号路径（36）产生频率调制音频信号，数字 信息信号和包括调频音频和数字信息的信号。 主激励器输出将在第一信号路径处产生的信号和在第二信号路径处产生的信号中的一个提供给相关联的第一目的地（42）。 辅助激励器输出将在第一信号路径处产生的信号和在辅助信号路径处产生的信号中的一个提供给相关联的第二信号目的地（44）。
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公开(公告)号：DE112006003416T5
公开(公告)日：2008-10-09
申请号：DE112006003416
申请日：2006-11-27
Applicant: HARRIS CORP
Inventor： DITTMER TIMOTHY WILFRED
IPC: H03G3/20
Abstract: Systems and methods are provided for amplifying a composite input signal, comprising a drive signal and an envelope signal, at a power amplifier. A secondary modulation, representing a portion of the composite input signal falling outside of a frequency band associated with the envelope signal, is produced for the drive signal. The secondary modulation is applied to the drive signal. The drive signal is amplified at the power amplifier to produce an amplified signal. At least a portion of the envelope signal is employed to drive a supply terminal of the power amplifier.
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公开(公告)号：CA2644456A1
公开(公告)日：2007-10-25
申请号：CA2644456
申请日：2007-04-05
Applicant: HARRIS CORP
Inventor： DITTMER TIMOTHY WILFRED , CABRERA GEORGE , DUELLO WAYNE DOUGLAS
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Patent Agency Ranking
公开(公告)号：CA2569387A1
公开(公告)日：2007-06-06
申请号：CA2569387
申请日：2006-11-30
Applicant: HARRIS CORP
Inventor： DITTMER TIMOTHY WILFRED , CABRERA GEORGE
Abstract: Systems and methods are provided for efficient amplification of a signal utilizing a modified Doherty amplifier system. A modified Doherty amplifier system includes a nonlinear main amplifier and a nonlinear auxiliary amplifier. An impedance-inverting network separates the main amplifier from an associated load. A second quarter wave transmission line separates the auxiliary amplifier from an associated signal source. The signal source has an associated minimum signal power, such that the signal power never drops below a predetermined percentage of a peak signal power.
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公开(公告)号：CA2613264C
公开(公告)日：2016-05-03
申请号：CA2613264
申请日：2006-05-24
Applicant: HARRIS CORP
Inventor： DITTMER TIMOTHY WILFRED
Abstract: Systems and methods are provided for providing a hybrid signal having a reduced crest factor. An analog exciter generates an analog signal having an associated phase. A digital exciter generates a digital signal that assumes one of a plurality of vector states at discrete sampling times associated with the hybrid signal. Each of the plurality of vector states has an associated phase. The digital signal and the analog signal are combined to provide the hybrid signal. The hybrid signal is compressed maximally when the digital signal assumes a vector state that is in phase with the analog signal .
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公开(公告)号：CA2644456C
公开(公告)日：2012-11-20
申请号：CA2644456
申请日：2007-04-05
Applicant: HARRIS CORP
Inventor： CABRERA GEORGE , DITTMER TIMOTHY WILFRED , DUELLO WAYNE DOUGLAS
Abstract: Systems and methods are provided for generating dual outputs in a digital exciter system. A first signal path (34) produces one of a frequency modulated audio signal, a digital information signal, and a signal comprising both frequency modulated audio and digital information A second signal path (36) produces one of a frequency modulated audio signal, a digital information signal, and a signal comprising both frequency modulated audio and digital information. A main exciter output provides one of the signal produced at the first signal path and the signal produced at the second signal path to an associated first destination (42). An auxiliary exciter output provides one of the signal produced at the first signal path and the signal produced at the auxiliary signal path to an associated second signal destination (44).
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公开(公告)号：CA2569387C
公开(公告)日：2012-01-10
申请号：CA2569387
申请日：2006-11-30
Applicant: HARRIS CORP
Inventor： DITTMER TIMOTHY WILFRED , CABRERA GEORGE
Abstract: Systems and methods are provided for efficient amplification of a signal utilizing a modified Doherty amplifier system. A modified Doherty amplifier system includes a nonlinear main amplifier and a nonlinear auxiliary amplifier. An impedance-inverting network separates the main amplifier from an associated load. A second quarter wave transmission line separates the auxiliary amplifier from an associated signal source. The signal source has an associated minimum signal power, such that the signal power never drops below a predetermined percentage of a peak signal power.
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公开(公告)号：CA2613264A1
公开(公告)日：2007-01-04
申请号：CA2613264
申请日：2006-05-24
Applicant: HARRIS CORP
Inventor： DITTMER TIMOTHY WILFRED
Abstract: Systems and methods are provided for providing a hybrid signal having a reduced crest factor. An analog exciter generates an analog signal having an associated phase. A digital exciter generates a digital signal that assumes one of a plurality of vector states at discrete sampling times associated wi th the hybrid signal. Each of the plurality of vector states has an associated phase. The digital signal and the analog signal are combined to provide the hybrid signal. The hybrid signal is compressed maximally when the digital signal assumes a vector state that is in phase with the analog signal .
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