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公开(公告)号：US08732788B2
公开(公告)日：2014-05-20
申请号：US11133237
申请日：2005-05-20
IPC分类号： H04N7/16
CPC分类号： H04N21/6168 , H04N7/17309 , H04N21/40
摘要： The present invention is an integrated set-top box. In one embodiment, the up-stream path and the down-stream path are integrated on a common semiconductor substrate. The down-stream path can include a TV tuner and a digital receiver portion that is integrated on the common semiconductor substrate with a power amplifier of the up-stream path. In another embodiment, the TV tuner is implemented on a first semiconductor substrate and the digital receiver portion and the power amplifier are configured on a second semiconductor substrate. However, the two substrates are mounted on a common carrier so that the set-top box appears to be a single chip configuration to the user.
摘要翻译： 本发明是一种集成的机顶盒。 在一个实施例中，上游路径和下游路径被集成在公共半导体衬底上。 下行路径可以包括集成在公共半导体衬底上的TV调谐器和数字接收器部分，其具有上行路径的功率放大器。 在另一个实施例中，TV调谐器被实现在第一半导体衬底上，并且数字接收器部分和功率放大器配置在第二半导体衬底上。 然而，两个基板安装在公共载体上，使得机顶盒看起来是用户的单芯片配置。
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公开(公告)号：US08578434B2
公开(公告)日：2013-11-05
申请号：US11133275
申请日：2005-05-20
IPC分类号： H04N7/173
CPC分类号： H04N21/6168 , H04N21/25883 , H04N21/25891 , H04N21/4263
摘要： The present invention is an integrated cable modem tuner. In one embodiment, the upstream path and the downstream path are integrated on a common semiconductor substrate. The down-stream path can include a TV tuner and digital receiver portion that is integrated on a common semiconductor substrate with the power amplifier of the upstream path. In another embodiment, the TV tuner is implemented on a first semiconductor substrate and the digital receiver portion and the power amplifier are configured on a second semiconductor substrate. However, the two substrates are mounted on a common carrier so that the cable modem appears to be a single chip configuration to the user.
摘要翻译： 本发明是综合电缆调制解调器调谐器。 在一个实施例中，上游路径和下游路径被集成在公共半导体衬底上。 下行路径可以包括集成在具有上游路径的功率放大器的公共半导体衬底上的TV调谐器和数字接收器部分。 在另一个实施例中，TV调谐器被实现在第一半导体衬底上，并且数字接收器部分和功率放大器配置在第二半导体衬底上。 然而，两个基板安装在公共载体上，使得电缆调制解调器似乎是用户的单芯片配置。
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3.发明授权公开(公告)号：US07983644B2
公开(公告)日：2011-07-19
申请号：US12724150
申请日：2010-03-15
IPC分类号： H04B1/06
CPC分类号： H04B1/28
摘要： An apparatus and method for local oscillator calibration compensates for filter passband variation in a mixer circuit, such as a receiver circuit. The receiver includes at least a mixer circuit and a filter coupled to the output of the mixer. During operation, the mixer mixes an RF input signal with a first local oscillator (LO) signal to frequency translate a selected channel in the RF input signal into the passband of the filter. During a calibration mode, the RF input signal is disabled, and the first LO signal is injected into the filter input by leaking the first LO signal through the mixer circuit. The frequency of the LO signal is then swept over a frequency bandwidth that is sufficiently wide so that the actual passband is detected by measuring the signal amplitude at the output of the bandpass filter, thereby determining any variation in the passband of the filter from the expected passband. Once the actual passband is determined, then the frequency of the first local oscillator signal is adjusted or tuned to compensate for any frequency shift of the actual passband compared to the expected passband. Therefore, the selected channel is up-converted into the center of the actual passband of the bandpass filter and will not fall outside the passband. This enables the passband of the bandpass filter to be narrowed, as compared with conventional receivers that do not utilize this calibration procedure. For example, the bandpass filter can be narrowed to one or two channels wide.
摘要翻译： 用于本地振荡器校准的装置和方法补偿诸如接收机电路的混频器电路中的滤波器通带变化。 接收器至少包括混频器电路和耦合到混频器输出端的滤波器。 在操作期间，混频器将RF输入信号与第一本地振荡器（LO）信号混频，以将RF输入信号中的选定信道频率转换成滤波器的通带。 在校准模式期间，RF输入信号被禁止，并且通过将第一LO信号泄漏通过混频器电路将第一LO信号注入滤波器输入。 然后将LO信号的频率扫过足够宽的频带宽度，以便通过测量带通滤波器输出端的信号振幅来检测实际通带，从而根据预期的方式确定滤波器通带的任何变化 通带。 一旦确定了实际通带，则调整或调谐第一本地振荡器信号的频率，以补偿与预期通带相比实际通带的任何频移。 因此，所选通道被上变频为带通滤波器的实际通带的中心，不会落在通带外。 与使用该校准程序的常规接收器相比，这使带通滤波器的通带变窄。 例如，带通滤波器可以变窄到一个或两个通道宽。
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公开(公告)号：US20100261446A1
公开(公告)日：2010-10-14
申请号：US12724150
申请日：2010-03-15
IPC分类号： H04B17/00
CPC分类号： H04B1/28
摘要： An apparatus and method for local oscillator calibration compensates for filter passband variation in a mixer circuit, such as a receiver circuit. The receiver includes at least a mixer circuit and a filter coupled to the output of the mixer. During operation, the mixer mixes an RF input signal with a first local oscillator (LO) signal to frequency translate a selected channel in the RF input signal into the passband of the filter. During a calibration mode, the RF input signal is disabled, and the first LO signal is injected into the filter input by leaking the first LO signal through the mixer circuit. The frequency of the LO signal is then swept over a frequency bandwidth that is sufficiently wide so that the actual passband is detected by measuring the signal amplitude at the output of the bandpass filter, thereby determining any variation in the passband of the filter from the expected passband. Once the actual passband is determined, then the frequency of the first local oscillator signal is adjusted or tuned to compensate for any frequency shift of the actual passband compared to the expected passband. Therefore, the selected channel is up-converted into the center of the actual passband of the bandpass filter and will not fall outside the passband. This enables the passband of the bandpass filter to be narrowed, as compared with conventional receivers that do not utilize this calibration procedure. For example, the bandpass filter can be narrowed to one or two channels wide.
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5.发明申请公开(公告)号：US20100167683A1
公开(公告)日：2010-07-01
申请号：US12724089
申请日：2010-03-15
CPC分类号： H04B1/28
摘要： An apparatus and method for local oscillator calibration compensates for filter passband variation in a mixer circuit, such as a receiver circuit. The receiver includes at least a mixer circuit and a filter coupled to the output of the mixer. During operation, the mixer mixes an RF input signal with a first local oscillator (LO) signal to frequency translate a selected channel in the RF input signal into the passband of the filter. During a calibration mode, the RF input signal is disabled, and the first LO signal is injected into the filter input by leaking the first LO signal through the mixer circuit. The frequency of the LO signal is then swept over a frequency bandwidth that is sufficiently wide so that the actual passband is detected by measuring the signal amplitude at the output of the bandpass filter, thereby determining any variation in the passband of the filter from the expected passband. Once the actual passband is determined, then the frequency of the first local oscillator signal is adjusted or tuned to compensate for any frequency shift of the actual passband compared to the expected passband. Therefore, the selected channel is up-converted into the center of the actual passband of the bandpass filter and will not fall outside the passband. This enables the passband of the bandpass filter to be narrowed, as compared with conventional receivers that do not utilize this calibration procedure. For example, the bandpass filter can be narrowed to one or two channels wide.
摘要翻译： 用于本地振荡器校准的装置和方法补偿诸如接收机电路的混频器电路中的滤波器通带变化。 接收器至少包括混频器电路和耦合到混频器输出端的滤波器。 在操作期间，混频器将RF输入信号与第一本地振荡器（LO）信号混频，以将RF输入信号中的选定信道频率转换成滤波器的通带。 在校准模式期间，RF输入信号被禁止，并且通过将第一LO信号泄漏通过混频器电路将第一LO信号注入滤波器输入。 然后将LO信号的频率扫过足够宽的频带宽度，以便通过测量带通滤波器输出端的信号振幅来检测实际通带，从而根据预期的方式确定滤波器通带的任何变化 通带。 一旦确定了实际通带，则调整或调谐第一本地振荡器信号的频率，以补偿与预期通带相比实际通带的任何频移。 因此，所选通道被上变频为带通滤波器的实际通带的中心，不会落在通带外。 与使用该校准程序的常规接收器相比，这使带通滤波器的通带变窄。 例如，带通滤波器可以变窄到一个或两个通道宽。
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公开(公告)号：US20090165070A1
公开(公告)日：2009-06-25
申请号：US11959662
申请日：2007-12-19
申请人： Donald G. McMullin , Ramon A. Gomez
发明人： Donald G. McMullin , Ramon A. Gomez
摘要： Systems and methods for perform a method for reducing interference from Multimedia over Coax Alliance (MOCA) signals in a cable television double conversion tuner are provided. The method may include receiving an indication of the channel in which MoCA signals are operating. When the channel in which the MoCA signals are operating is in the same frequency band as an intermediate frequency of the tuner, the method may require shifting an intermediate frequency of the tuner out of the frequency band occupied by the channel in which the MoCA signals are operating.
摘要翻译： 提供了一种用于在有线电视双转换调谐器中执行减少Multimedia over Coax Alliance（MOCA）信号干扰的方法的系统和方法。 该方法可以包括接收MoCA信号正在操作的信道的指示。 当MoCA信号操作的信道处于与调谐器的中频相同的频带中时，该方法可能需要将调谐器的中频从MoCA信号为 操作。
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公开(公告)号：US09686594B2
公开(公告)日：2017-06-20
申请号：US13435433
申请日：2012-03-30
IPC分类号： G01R31/08 , H04N21/647 , H04N17/00 , H04L12/26 , H04L12/24
CPC分类号： H04N21/64723 , H04B17/27 , H04B17/309 , H04L41/32 , H04L43/12 , H04M3/10 , H04M3/306 , H04N17/00
摘要： A system, method, and apparatus to allow an operator of a broadcast communication system, such as a cable television or satellite television service to provide some examples, to diagnose performance of this communication system remotely. The operator of a first communication device, such as a cable modem termination system (CMTS) to provide an example, may remotely diagnosis performance problems, or potential performance problems, occurring at a second communication device, such as a cable modem (CM) to provide an example, or a group of second communication devices. For example, the operator of the first communication device may view a spectrum analysis of communication signals being routed to, processed by, and/or provided by the second communication device, or group of second communication devices, to diagnose the performance problems, or the potential performance problems, in real time.
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8.发明授权公开(公告)号：US08334721B2
公开(公告)日：2012-12-18
申请号：US13226233
申请日：2011-09-06
申请人： Stephen A. Jantzi , Anilkumar V. Tammineedi , Jungwoo Song , Lawrence M. Burns , Donald G. McMullin , Agnes N. Woo
发明人： Stephen A. Jantzi , Anilkumar V. Tammineedi , Jungwoo Song , Lawrence M. Burns , Donald G. McMullin , Agnes N. Woo
IPC分类号： H03F1/14
CPC分类号： H03G3/001 , H03G1/0088
摘要： An upstream amplifier is integrated on a substrate with a digital-to-analog converter (DAC) to form an integrated circuit. In an embodiment, a low-pass filter is also integrated on the substrate. The output signal level of the upstream amplifier is controllable. In embodiments, fine adjustments are made to the output signal level of the upstream amplifier by varying a bias current of the DAC. A software control bit is used to switch between a power-on mode of operation and a power-down mode of operation. The upstream amplifier transmits in a burst mode. The power consumption of the upstream amplifier scales with the amplifier's output signal level. A high degree of matching is attained between the positive and negative paths of the upstream amplifier. This provides high immunity from common-mode disturbances such as substrate noise, clock spurs, and glitches caused by a gain change.
摘要翻译： 上游放大器集成在具有数模转换器（DAC）的基板上，以形成集成电路。 在一个实施例中，低通滤波器也集成在基板上。 上游放大器的输出信号电平是可控的。 在实施例中，通过改变DAC的偏置电流对上游放大器的输出信号电平进行微调。 软件控制位用于在上电操作模式和掉电操作模式之间切换。 上游放大器以突发模式发送。 上游放大器的功耗随放大器的输出信号电平而变化。 在上游放大器的正和负路径之间达到高度的匹配。 这提供了诸如衬底噪声，时钟刺激和由增益变化引起的毛刺等共模干扰的高抗扰性。
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9.发明授权Apparatus, system, and method for amplifying a signal, and applications thereof 有权用于放大信号的装置，系统和方法及其应用公开(公告)号：US07034610B2
公开(公告)日：2006-04-25
申请号：US10861379
申请日：2004-06-07
申请人： Stephen A. Jantzi , Anilkumar V. Tammineedi , Jungwoo Song , Lawrence M. Burns , Donald G. McMullin , Agnes N. Woo
发明人： Stephen A. Jantzi , Anilkumar V. Tammineedi , Jungwoo Song , Lawrence M. Burns , Donald G. McMullin , Agnes N. Woo
IPC分类号： H03F1/14
CPC分类号： H03G3/001 , H03G1/0088
摘要： An upstream amplifier is integrated on a substrate with a digital-to-analog converter (DAC) to form an integrated circuit. In an embodiment, a low-pass filter is also integrated on the substrate. The output signal level of the upstream amplifier is controllable. In embodiments, fine adjustments are made to the output signal level of the upstream amplifier by varying a bias current of the DAC. A software control bit is used to switch between a power-on mode of operation and a power-down mode of operation. The upstream amplifier transmits in a burst mode. The power consumption of the upstream amplifier scales with the amplifier's output signal level. A high degree of matching is attained between the positive and negative paths of the upstream amplifier. This provides high immunity from common-mode disturbances such as substrate noise, clock spurs, and glitches caused by a gain change.
摘要翻译： 上游放大器集成在具有数模转换器（DAC）的基板上，以形成集成电路。 在一个实施例中，低通滤波器也集成在基板上。 上游放大器的输出信号电平是可控的。 在实施例中，通过改变DAC的偏置电流对上游放大器的输出信号电平进行微调。 软件控制位用于在上电操作模式和掉电操作模式之间切换。 上游放大器以突发模式发送。 上游放大器的功耗随放大器的输出信号电平而变化。 在上游放大器的正和负路径之间达到高度的匹配。 这提供了诸如衬底噪声，时钟刺激和由增益变化引起的毛刺等共模干扰的高抗扰性。
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10.发明申请公开(公告)号：US20120086592A1
公开(公告)日：2012-04-12
申请号：US13226233
申请日：2011-09-06
申请人： Stephen A. Jantzi , Anilkumar V. Tammineedi , Jungwoo Song , Lawrence M. Burns , Donald G. McMullin , Anges N. Woo
发明人： Stephen A. Jantzi , Anilkumar V. Tammineedi , Jungwoo Song , Lawrence M. Burns , Donald G. McMullin , Anges N. Woo
IPC分类号： H03M1/66
CPC分类号： H03G3/001 , H03G1/0088
摘要： An upstream amplifier is integrated on a substrate with a digital-to-analog converter (DAC) to form an integrated circuit. In an embodiment, a low-pass filter is also integrated on the substrate. The output signal level of the upstream amplifier is controllable. In embodiments, fine adjustments are made to the output signal level of the upstream amplifier by varying a bias current of the DAC. A software control bit is used to switch between a power-on mode of operation and a power-down mode of operation. The upstream amplifier transmits in a burst mode. The power consumption of the upstream amplifier scales with the amplifier's output signal level. A high degree of matching is attained between the positive and negative paths of the upstream amplifier. This provides high immunity from common-mode disturbances such as substrate noise, clock spurs, and glitches caused by a gain change.
摘要翻译： 上游放大器集成在具有数模转换器（DAC）的基板上，以形成集成电路。 在一个实施例中，低通滤波器也集成在基板上。 上游放大器的输出信号电平是可控的。 在实施例中，通过改变DAC的偏置电流对上游放大器的输出信号电平进行微调。 软件控制位用于在上电操作模式和掉电操作模式之间切换。 上游放大器以突发模式发送。 上游放大器的功耗随放大器的输出信号电平而变化。 在上游放大器的正和负路径之间达到高度的匹配。 这提供了诸如衬底噪声，时钟刺激和由增益变化引起的毛刺等共模干扰的高抗扰性。
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