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公开(公告)号：US07253845B2
公开(公告)日：2007-08-07
申请号：US10142573
申请日：2002-05-09
CPC分类号： H04N9/68 , G09G3/20 , G09G3/2051 , G09G3/3607 , G09G3/3648 , G09G5/02 , G09G2320/0276 , G09G2320/0673 , H04N9/3182
摘要： A method (400) and a system (100) for providing video signals to video displays includes the steps of receiving at least one input video signal (150), dithering the non-uniformity color correction (445), applying the non-uniformity color correction to the input video signal to generate a color corrected video signal (450), and increasing a frame rate of the color corrected video signal (120). Gamma correction (125) can be applied to the color correction. Generating a dithered non-uniformity color correction can include selecting from a data storage (115) a plurality of RGB correction matrices (300), measuring at least one brightness level of the input video signal, selecting for the picture level correction a first RGB correction matrix if the brightness is within a first range of values (425), a second RGB correction matrix if the brightness is within a second range of values (435), and interpolating (440) the plurality of RGB correction matrices if the brightness is within a third range of values.
摘要翻译： 一种用于向视频显示提供视频信号的方法（400）和系统（100）包括以下步骤：接收至少一个输入视频信号（150），使不均匀色校正（445）抖动，应用不均匀色 对输入视频信号进行校正以产生色彩校正视频信号（450），以及增加色彩校正视频信号（120）的帧速率。 伽马校正（125）可以应用于颜色校正。 产生抖动非均匀性颜色校正可以包括从数据存储器（115）中选择多个RGB校正矩阵（300），测量输入视频信号的至少一个亮度级，选择图像电平校正第一RGB校正 如果亮度在值（425）的第一范围内，则第二RGB校正矩阵，如果亮度在值的第二范围内（435），则第二RGB校正矩阵，并且如果亮度在内部时内插（440）多个RGB校正矩阵 第三个范围的价值观。
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公开(公告)号：US06894725B2
公开(公告)日：2005-05-17
申请号：US10190185
申请日：2002-07-05
IPC分类号： H04N7/01
CPC分类号： H04N7/0102
摘要： A digital video system includes a sample rate converter and an inverse-sample rate converter. The sample rate converter converts video data from a non-orthogonal pixel domain to an orthogonal pixel domain. The inverse-sample rate converter converts the video data from the orthogonal pixel domain to the non-orthogonal pixel domain. The inverse sample rate converter utilizes a timing signal generated by the sample rate converter when converting the video data from the orthogonal pixel domain to the non-orthogonal pixel domain.
摘要翻译： 数字视频系统包括采样率转换器和反样本速率转换器。 采样率转换器将视频数据从非正交像素域转换为正交像素域。 逆采样率转换器将视频数据从正交像素域转换为非正交像素域。 当将视频数据从正交像素域转换为非正交像素域时，反采样率转换器利用由采样率转换器产生的定时信号。
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公开(公告)号：US20120025929A1
公开(公告)日：2012-02-02
申请号：US13138834
申请日：2009-12-21
CPC分类号： H03H7/461
摘要： The present invention concerns a bandstop filter for preventing signals of frequencies used for inter-device communications in a television signal distribution system from interfering with a signal source. The filter is designed to work with a signal splitter and reduce the negative impact on inter-device communication through the splitter caused by conventional bandstop filters. The filter adds a section to a bandstop filter to provide a resistive load and high output impedance at the port feeding the splitter largely through the action of a parallel resonant circuit.
摘要翻译： 本发明涉及一种用于防止在电视信号分配系统中用于设备间通信的频率信号干扰信号源的带阻滤波器。 滤波器设计用于与信号分离器一起工作，并减少由传统带阻滤波器引起的分离器对器件间通信的负面影响。 滤波器为带阻滤波器增加了一个部分，以便在通过并联谐振电路的作用下大量馈送分离器的端口处提供电阻性负载和高输出阻抗。
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公开(公告)号：US07202910B1
公开(公告)日：2007-04-10
申请号：US09959083
申请日：2000-04-20
IPC分类号： H04N7/18
CPC分类号： H04N5/50 , H04N5/4401 , H04N21/42638
摘要： An IF signal processing arrangement for processing both analog and digital signals is disclosed in the present application. The signal processing arrangement includes a signal source for providing one of digital and analog IF signals, a first SAW filter having an output for filtering the IF signal, digital signal processing circuitry coupled to the output for processing a filtered digital IF signal, and analog signal processing circuitry coupled to the output for processing which includes filtering a filtered analog signal.
摘要翻译： 在本申请中公开了用于处理模拟和数字信号的IF信号处理装置。 信号处理装置包括用于提供数字和模拟IF信号中的一个的信号源，具有用于对IF信号进行滤波的输出的第一SAW滤波器，耦合到输出的数字信号处理电路，用于处理滤波的数字IF信号，以及模拟信号 处理电路耦合到输出以进行处理，其包括滤波滤波的模拟信号。
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5.发明申请公开(公告)号：US20120266003A1
公开(公告)日：2012-10-18
申请号：US13518658
申请日：2010-01-15
IPC分类号： G06F1/32
CPC分类号： H04N5/4401 , H04N5/63 , H04N21/43615 , H04N21/4436 , H04N21/4532 , H04N21/4622 , H04W52/0229 , H04W52/0254 , Y02D70/142
摘要： A method and apparatus configures a power level for a device able to receive audio, video, and data signals. An input signal is received by a receiver capable of receiving broadcast data signals and digital home networking signals. The system determines if the receiver is operating in a first mode having a first power level or a second mode having a second power level based on a type of input signal received by the receiver. A control signal is generated for modifying at least one setting on a first circuit for configuring the first circuit to operate according to the first power level if the input signal is a first type of input signal. The control signal is provided to the first circuit and the first circuit is configured to operate according to the first power level based on the control signal.
摘要翻译： 方法和装置为能够接收音频，视频和数据信号的设备配置功率电平。 输入信号由能够接收广播数据信号和数字家庭联网信号的接收机接收。 该系统基于由接收机接收的输入信号的类型来确定接收机是否处于具有第一功率电平的第一模式或具有第二功率电平的第二模式。 如果输入信号是第一种类型的输入信号，则产生控制信号以修改第一电路上的至少一个设置，用于将第一电路配置为根据第一功率电平进行操作。 控制信号被提供给第一电路，并且第一电路被配置为基于控制信号根据第一功率电平进行操作。
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6.发明授权Apparatus and method for providing an AGC function using multiple feedback sources 有权使用多个反馈源提供AGC功能的装置和方法公开(公告)号：US07602448B2
公开(公告)日：2009-10-13
申请号：US10564345
申请日：2004-07-08
CPC分类号： H03G3/3052 , H03G3/3068 , H04N5/4401 , H04N5/46 , H04N5/52
摘要： An apparatus (20) such as a television signal receiver provides an AGC function by using multiple feedback sources which provide both narrow band and wide band AGC signals in an adaptive manner. According to an exemplary embodiment, the apparatus (20) includes a tuner (10, 15, 20, 25, 30) operative to generate first and second IF signals. A first demodulator (40) is operative to generate a first AGC signal responsive to the first IF signal. A second demodulator (50) is operative to generate a second AGC signal responsive to the second IF signal. A wide band AGC detector (60) is operative to generate a third AGC signal responsive to at least one of the first and second IF signals. A switch (70) is operative to selectively provide one of the first, second and third AGC signals to the tuner (10, 15, 20, 25, 30) responsive to a predetermined condition.
摘要翻译： 诸如电视信号接收机的装置（20）通过使用以自适应方式提供窄带和宽带AGC信号的多个反馈源来提供AGC功能。 根据示例性实施例，装置（20）包括可操作以产生第一和第二IF信号的调谐器（10,15,20,25,30）。 第一解调器（40）用于响应于第一IF信号产生第一AGC信号。 第二解调器（50）用于响应于第二IF信号产生第二AGC信号。 宽带AGC检测器（60）用于响应于第一和第二IF信号中的至少一个产生第三AGC信号。 开关（70）可操作以响应于预定条件而选择性地将第一，第二和第三AGC信号中的一个提供给调谐器（10,15,20,25,30）。
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公开(公告)号：US06738098B1
公开(公告)日：2004-05-18
申请号：US09806215
申请日：2001-03-27
IPC分类号： H04N516
摘要： A method and apparatus within a television receiver for electronically aligning signals within the receiver by controlling support circuitry for an IF module. A video amplifier is coupled to an output of the IF module. A control voltage source (DAC 114) controls a DC level control circuit within the video amplifier (244) such that the video signal is amplified and DC level shifted to align the video signal with down stream circuitry.
摘要翻译： 电视接收机内的方法和装置，用于通过控制IF模块的支持电路来对接收机内的信号进行电子对准。 视频放大器耦合到IF模块的输出端。 控制电压源（DAC 114）控制视频放大器（244）内的DC电平控制电路，使得视频信号被放大，并且DC电平移位以使视频信号与下行电路对准。
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8.发明授权公开(公告)号：US08892920B2
公开(公告)日：2014-11-18
申请号：US13518658
申请日：2010-01-15
IPC分类号： G06F1/32 , H04N5/44 , H04N5/63 , H04N21/436 , H04N21/462 , H04W52/02 , H04N21/443 , H04N21/45
CPC分类号： H04N5/4401 , H04N5/63 , H04N21/43615 , H04N21/4436 , H04N21/4532 , H04N21/4622 , H04W52/0229 , H04W52/0254 , Y02D70/142
摘要： A method and apparatus configures a power level for a device able to receive audio, video, and data signals. An input signal is received by a receiver capable of receiving broadcast data signals and digital home networking signals. The system determines if the receiver is operating in a first mode having a first power level or a second mode having a second power level based on a type of input signal received by the receiver. A control signal is generated for modifying at least one setting on a first circuit for configuring the first circuit to operate according to the first power level if the input signal is a first type of input signal. The control signal is provided to the first circuit and the first circuit is configured to operate according to the first power level based on the control signal.
摘要翻译： 方法和装置为能够接收音频，视频和数据信号的设备配置功率电平。 输入信号由能够接收广播数据信号和数字家庭联网信号的接收机接收。 该系统基于由接收机接收的输入信号的类型来确定接收机是否处于具有第一功率电平的第一模式或具有第二功率电平的第二模式。 如果输入信号是第一种类型的输入信号，则产生控制信号以修改第一电路上的至少一个设置，用于将第一电路配置为根据第一功率电平进行操作。 控制信号被提供给第一电路，并且第一电路被配置为基于控制信号根据第一功率电平进行操作。
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9.发明授权Apparatus and method for processing analog and digital signals from multiple signal sources 失效用于处理来自多个信号源的模拟和数字信号的装置和方法公开(公告)号：US07599009B2
公开(公告)日：2009-10-06
申请号：US10564428
申请日：2004-07-08
CPC分类号： H04N5/4401 , H04N5/46 , H04N5/52 , H04N21/42638 , H04N21/4382 , H04N21/6112 , H04N21/6118
摘要： An apparatus such as a television signal receiver employs an efficient and cost-effective signal processing architecture which enables, among other things, the reception and processing of both analog and digital signals from multiple signal sources, such as but not limited to, terrestrial and cable signal sources. According to an exemplary embodiment, the apparatus includes a first tuner operative to generate a first IF signal corresponding to a first RF signal. A first demodulator is operative to generate a first demodulated signal corresponding to the first IF signal. A second tuner is operative to generate a second IF signal corresponding to a second RE signal. A second demodulator is operative to generate a second demodulated signal corresponding to the second IF signal. A third demodulator is operative to generate a third demodulated signal corresponding to one of the first and second IF signals.
摘要翻译： 诸如电视信号接收机之类的装置采用有效且经济有效的信号处理架构，其特征在于能够接收和处理来自多个信号源（例如但不限于地面和电缆）的模拟和数字信号 信号源。 根据示例性实施例，该装置包括可操作以产生对应于第一RF信号的第一IF信号的第一调谐器。 第一解调器用于产生对应于第一IF信号的第一解调信号。 第二调谐器用于产生对应于第二RE信号的第二IF信号。 第二解调器用于产生对应于第二IF信号的第二解调信号。 第三解调器用于产生对应于第一和第二IF信号之一的第三解调信号。
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10.发明授权Method and apparatus for providing dual automatic gain control delay settings in a television receiver 失效用于在电视接收机中提供双重自动增益控制延迟设置的方法和装置公开(公告)号：US07317493B1
公开(公告)日：2008-01-08
申请号：US10031059
申请日：2000-07-13
CPC分类号： H04N5/52 , H04N5/46 , H04N21/42607
摘要： The present invention provides a method and apparatus for processing a received television signal comprising one of a first type of television signal and a second type of television signal. Specifically, the method comprises amplifying the received television signal in response to a control signal. If the received television signal comprises the first type of television signal, the RF amplifier gain is reduced when the received television signal exceeds a first signal level. If the received television signal comprises the second type of television signal, the RF amplifier gain is reduced when the received television signal exceeds a second signal level. The second signal level is greater than the first signal level. A concomitant apparatus is also provided. As the first signal level is lower for the first type of television signal, reception of the first type of television signal is improved.
摘要翻译： 本发明提供了一种用于处理包括第一类型的电视信号和第二类型的电视信号之一的接收的电视信号的方法和装置。 具体地，该方法包括响应于控制信号来放大所接收的电视信号。 如果所接收的电视信号包括第一类型的电视信号，则当所接收的电视信号超过第一信号电平时，RF放大器增益减小。 如果所接收的电视信号包括第二类型的电视信号，则当所接收的电视信号超过第二信号电平时，RF放大器增益减小。 第二信号电平大于第一信号电平。 还提供了一种伴随的装置。 当第一类电视信号的第一信号电平较低时，第一类电视信号的接收得到改善。
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