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公开(公告)号:US4326168A
公开(公告)日:1982-04-20
申请号:US101961
申请日:1979-12-10
申请人: William F. Acker
发明人: William F. Acker
摘要: An offset adjustment system is disclosed to correct for the presence of a constant or slowly varying additive component in an incoming analog baseband signal at the receiver end of a digitally based communications channel based on a level crossing detector identifying certain data samples in connection with a preselected value.
摘要翻译: 偏移调整系统被公开以校正在基于数字的通信信道的接收机端处的输入模拟基带信号中恒定或缓慢变化的添加分量的存在,该电平交叉检测器基于与预选的相关联的特定数据样本 值。
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公开(公告)号:US4207523A
公开(公告)日:1980-06-10
申请号:US829705
申请日:1977-09-01
申请人: William F. Acker
发明人: William F. Acker
摘要: A communications channel monitoring system is disclosed for digitally based communication channels carrying signals corrupted by noise. The monitor system provides a signal indicative of the expected value of the communication channel signal if uncorrupted by noise and provides a signal indicating the extent of any such corruption.
摘要翻译: 公开了一种用于承载由噪声破坏的信号的基于数字的通信信道的通信信道监控系统。 监视器系统提供指示通信信道信号的期望值的信号,如果没有被噪声干扰,并提供指示任何这种损坏的程度的信号。
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公开(公告)号:US4086536A
公开(公告)日:1978-04-25
申请号:US589953
申请日:1975-06-24
申请人: William F. Acker
发明人: William F. Acker
摘要: A new single sideband transmitter is disclosed which permits use of single sideband techniques with less stringent requirements for the filters used therewith. An especially advantageous version can be constructed for a digitized discrete time system including converting the input data to a partial response format.
摘要翻译: 公开了一种新的单边带发射机,其允许使用对其使用的滤波器具有较不严格要求的单边带技术。 可以构建用于数字化离散时间系统的特别有利的版本,包括将输入数据转换为部分响应格式。
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公开(公告)号:US4355284A
公开(公告)日:1982-10-19
申请号:US209616
申请日:1980-11-24
申请人: William F. Acker
发明人: William F. Acker
摘要: A phase correction system is disclosed for adjusting a phase relationship of periodic data samples, based on a level crossing detector identifying certain data samples in connection with a preselected value.
摘要翻译: 公开了一种相位校正系统,用于基于与预选值相关联地识别某些数据样本的电平交叉检测器来调整周期性数据样本的相位关系。
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公开(公告)号:US4053846A
公开(公告)日:1977-10-11
申请号:US705984
申请日:1976-07-16
申请人: William F. Acker
发明人: William F. Acker
CPC分类号: H04L25/03038 , H03G1/0052 , H04L25/064
摘要: A communications receiver transversal filter equalizer is disclosed of the type using fixed increment tap weight adjustments involving use of amplitude data from the incoming signal in conjunction with tap weight adjustments.
摘要翻译: 公开了使用固定增量抽头权重调整的类型的通信接收器横向滤波器均衡器,其涉及使用来自输入信号的幅度数据结合抽头权重调整。
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公开(公告)号:US4398218A
公开(公告)日:1983-08-09
申请号:US290647
申请日:1981-08-06
申请人: William F. Acker
发明人: William F. Acker
IPC分类号: H03K5/153 , H03K5/19 , H04L1/20 , H04L7/033 , G01R19/165
摘要: Apparatus for identifying intended crossing events of a preselected value of an analog signal is disclosed. The apparatus further identifies whether the signal is rising or falling during those crossing events.
摘要翻译: 公开了用于识别模拟信号的预选值的预期交叉事件的装置。 该装置进一步识别在这些交叉事件期间信号是上升还是下降。
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公开(公告)号:US4352193A
公开(公告)日:1982-09-28
申请号:US210093
申请日:1980-11-24
申请人: William F. Acker
发明人: William F. Acker
摘要: An expected level determination system is disclosed for determining the expected level of incoming analog signals at the receiver end of a digitally based communications channel. This is accomplished by a feedback loop based on apportionment.
摘要翻译: 公开了一种用于确定在基于数字的通信信道的接收机端处的输入模拟信号的预期电平的期望电平确定系统。 这是通过基于分摊的反馈回路实现的。
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公开(公告)号:US3979684A
公开(公告)日:1976-09-07
申请号:US589980
申请日:1975-06-24
申请人: William F. Acker
发明人: William F. Acker
摘要: A bandpass or band reject filter system is provided for operating on frequencies in an input signal with the filter system containing a feedback loop. Quadrature components of the frequencies of interest occurring in the output signal are acted on in the feedback loop to provide a feedback signal, which can be used directly itself, to be summed with the input signal thereby effecting a cancellation of the frequencies of interest therein. The frequencies of interest can be chosen by manual tuning, or by a self-tuning system which can be provided by the addition of a further feedback arrangement.
摘要翻译: 提供带通或带阻滤波器系统,用于在输入信号的频率上操作,滤波器系统包含反馈回路。 在输出信号中出现的感兴趣频率的正交分量作用在反馈回路中,以提供可以直接使用的反馈信号与输入信号相加,从而实现其中感兴趣的频率的消除。 感兴趣的频率可以通过手动调谐来选择,或者通过可以通过添加进一步的反馈装置来提供的自调节系统来选择。
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9.
公开(公告)号:US4672644A
公开(公告)日:1987-06-09
申请号:US784417
申请日:1985-10-04
申请人: William F. Acker
发明人: William F. Acker
CPC分类号: H03H15/02 , G11C19/285
摘要: A technique for compensating for charge transfer inefficiency in charge coupled devices. A convolver output is summed concurrently with a previous convolver output delayed by a sample period and weighted by a selected coefficient related to the charge transfer inefficiency.
摘要翻译: 一种补偿电荷耦合器件电荷转移效率低下的技术。 卷积器输出与延迟了采样周期的先前的卷积器输出同时地相加,并且通过与电荷转移无效率相关的选定系数进行加权。
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公开(公告)号:US4335361A
公开(公告)日:1982-06-15
申请号:US102600
申请日:1979-12-12
申请人: William F. Acker
发明人: William F. Acker
CPC分类号: H03G1/0005 , H04L1/20 , H04L7/033
摘要: A communications channel monitoring system is disclosed for digitally based communication channels carrying signals corrupted by noise. The monitor system provides a signal indicative of the expected value of the communication channel signal if uncorrupted by noise and provides a signal indicating the extent of any such corruption.
摘要翻译: 公开了一种用于承载由噪声破坏的信号的基于数字的通信信道的通信信道监控系统。 监视器系统提供指示通信信道信号的期望值的信号,如果没有被噪声干扰,并提供指示任何这种损坏的程度的信号。
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