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公开(公告)号：US08125386B2
公开(公告)日：2012-02-28
申请号：US12612483
申请日：2009-11-04
申请人： John G. N. Henderson , Carl Scarpa
发明人： John G. N. Henderson , Carl Scarpa
CPC分类号： H01Q1/007 , H01Q1/24 , H01Q3/2611 , H01Q7/005
摘要： Antennas with steerable antenna patterns and techniques for using such antennas are described. In accordance with the invention, antenna patterns with one or more NULLs are used. Through the use of digital control signals the antenna pattern is steered so that a source of signal interference, e.g., a multipath signal, will be located in a NULL. In this manner the received signal's S/N ratio can be maximized thereby facilitating demodulation. The techniques of the invention can be applied to television, computer devices, mobile devices and a wide range of other systems. Digital commands to control an antenna may include multiple information fields, e.g., a direction field, a channel field, a gain field and a polarity field. Antennas incapable of supporting the specified fields disregard information in fields which are not supported. Information in each supported field is decoded and used to adjust the corresponding antenna characteristic.
摘要翻译： 描述了具有可导向天线方向图和使用这种天线的技术的天线。 根据本发明，使用具有一个或多个NULL的天线方向图。 通过使用数字控制信号，导航天线方向图，使得诸如多路径信号的信号干扰源将位于空值中。 以这种方式，可以使接收信号的S / N比最大化，从而便于解调。 本发明的技术可以应用于电视，计算机设备，移动设备以及各种其它系统。 用于控制天线的数字命令可以包括多个信息字段，例如方向字段，信道字段，增益字段和极性字段。 无法支持指定字段的天线无视不支持的字段中的信息。 每个支持的字段中的信息被解码并用于调整相应的天线特性。
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公开(公告)号：US07633441B2
公开(公告)日：2009-12-15
申请号：US11839202
申请日：2007-08-15
申请人： John G. N. Henderson , Carl Scarpa
发明人： John G. N. Henderson , Carl Scarpa
CPC分类号： H01Q1/007 , H01Q1/24 , H01Q3/2611 , H01Q7/005
摘要： Antennas with steerable antenna patterns and techniques for using such antennas are described. In accordance with the invention, antenna patterns with one or more NULLs are used. Through the use of digital control signals the antenna pattern is steered so that a source of signal interference, e.g., a multipath signal, will be located in a NULL. In this manner the received signal's S/N ratio can be maximized thereby facilitating demodulation. The techniques of the invention can be applied to television, computer devices, mobile devices and a wide range of other systems. Digital commands to control an antenna may include multiple information fields, e.g., a direction field, a channel field, a gain field and a polarity field. Antennas incapable of supporting the specified fields disregard information in fields which are not supported. Information in each supported field is decoded and used to adjust the corresponding antenna characteristic.
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13.发明授权
公开(公告)号：US4349840A
公开(公告)日：1982-09-14
申请号：US210248
申请日：1980-11-25
申请人： John G. N. Henderson
发明人： John G. N. Henderson
摘要： In a television receiver having an in-cabinet receiving antenna that has a plurality of electrically controllable states having different radiation reception pattern conditions, an automatic antenna steering apparatus selects one of the controllable patterns. In response to the selection of a channel to be received, the apparatus sequences through each of the plurality of states and determines the relative amplitude of the received signal in each. When the amplitude of received signals in all of the states has been determined, the apparatus selects the state wherein the received signal is of a predetermined amplitude condition. One convenient measure of signal amplitude is an internal AGC signal of the receiver. In one embodiment of the present invention a microcomputer is employed to control the various operations to establish the antenna in the state producing the predetermined amplitude condition.
摘要翻译： 在具有具有多个具有不同的辐射接收模式条件的电可控状态的柜内接收天线的电视接收机中，自动天线转向装置选择可控模式之一。 响应于要接收的信道的选择，该装置按照多个状态中的每一个进行排序，并确定每个信道中的相对幅度。 当确定了所有状态下的接收信号的振幅时，该装置选择接收信号为预定振幅条件的状态。 信号幅度的一个方便的测量是接收机的内部AGC信号。 在本发明的一个实施例中，采用微型计算机来控制在产生预定幅度条件的状态下建立天线的各种操作。
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14.发明授权Channel identification apparatus useful in a multiband sweep type tuning system 失效信道识别装置，用于多波段扫描型调谐系统
公开(公告)号：US4254506A
公开(公告)日：1981-03-03
申请号：US43765
申请日：1979-05-30
CPC分类号： H03J1/0033 , H03J5/0263 , H03J7/20
摘要： In a tuning system for generating a tuning voltage for tuning a television receiver, channel identification apparatus includes a memory for storing binary signals representing boundary voltages having magnitudes corresponding to magnitudes of the tuning voltage between tuning voltage ranges for respective adjacent channels within a band. Because the tuning voltage characteristics associated with conventional television receivers include separated portions corresponding to respective frequency bands in which the television channels are located, boundary voltages corresponding to the boundaries of the tuning voltage ranges of the highest and lowest frequency channels in each band are also stored. As the memory locations are addressed, the boundary voltages are compared to the tuning voltages. Control apparatus causes the memory location associated with the next boundary voltage to be addressed and causes channel number apparatus to generate binary signals representing the next channel number when the magnitude of a predetermined one of the boundary voltage associated with an addressed one of the memory locations and the tuning voltage exceeds the magnitude of the other one. Display apparatus displays the channel number represented by the binary signals generated by the channel number apparatus. Because the boundary voltages are utilized, the channel identification apparatus, as disclosed, is particularly well suited for use in a signal seeking system.
摘要翻译： 在用于产生用于调谐电视接收机的调谐电压的调谐系统中，信道识别装置包括用于存储二进制信号的存储器，该二进制信号表示具有与频带内各个相邻信道的调谐电压范围之间的调谐电压的幅度相对应的幅度的边界电压。 由于与常规电视接收机相关联的调谐电压特性包括对应于电视频道所在频带的分离部分，所以与每频带中最高和最低频率信道的调谐电压范围边界对应的边界电压也被存储 。 当寻址存储器位置时，将边界电压与调谐电压进行比较。 控制装置使得与下一边界电压相关联的存储器位置被寻址，并且当与所寻址的一个存储器位置相关联的边界电压的预定的一个的幅度和当存储器位置相关联的边界电压的大小时，使得通道编号装置产生表示下一个通道号的二进制信号 调谐电压超过另一个的幅度。 显示装置显示由通道编号装置产生的二进制信号表示的通道号。 由于利用边界电压，如所公开的那样，信道识别装置特别适用于信号搜索系统。
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公开(公告)号：US07006040B2
公开(公告)日：2006-02-28
申请号：US10020703
申请日：2001-11-30
申请人： John G. N. Henderson , Carl Scarpa
发明人： John G. N. Henderson , Carl Scarpa
IPC分类号： H01Q3/24
CPC分类号： H01Q1/007 , H01Q1/24 , H01Q3/2611 , H01Q7/005
摘要： Antennas with steerable antenna patterns and techniques for using such antennas are described. In accordance with the invention, antenna patterns with one or more NULLs are used. Through the use of digital control signals the antenna pattern is steered so that a source of signal interference, e.g., a multipath signal, will be located in a NULL. In this manner the received signal's S/N ratio can be maximized thereby facilitating demodulation. The techniques of the invention can be applied to television, computer devices, mobile devices and a wide range of other systems. Digital commands to control an antenna may include multiple information fields, e.g., a direction field, a channel field, a gain field and a polarity field. Antennas incapable of supporting the specified fields disregard information in fields which are not supported. Information in each supported field is decoded and used to adjust the corresponding antenna characteristic.
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16.发明授权Signal-seeking tuning system with signal loss protection for a television receiver 失效用于电视接收机的信号丢失保护的信号寻呼调谐系统
公开(公告)号：US4429415A
公开(公告)日：1984-01-31
申请号：US326171
申请日：1981-11-30
CPC分类号： H03J7/28
摘要： A signal-seeking tuning system for a television receiver scans the VHF and UHF signal bands until a present TV channel signal is detected. Tuning voltage is developed by a digital-to-analog converter in response to a binary word stored in an up-down counter. The value of the binary word increases when a scan-up signal is applied and decreases when a scan-down signal is applied. Scanning is stopped by inhibiting changing of the binary word when a valid sequence of AFT signals is detected.Thereafter, the tuning voltage is compensated for drifts by incrementing or decrementing the binary word whenever the AFT signal departs from a predetermined condition. This correction is inhibited, however, when the RF carrier signal is lost so that the desired tuning is not also lost, whereby the selected channel is still tuned when the RF carrier signal reappears.
摘要翻译： 用于电视接收机的信号寻找调谐系统扫描VHF和UHF信号频带，直到检测到当前TV信道信号。 响应于存储在升降计数器中的二进制字，数字 - 模拟转换器产生调谐电压。 当施加扫描信号时，二进制字的值增加，并且当施加扫描信号时，该值减小。 当检测到AFT信号的有效序列时，禁止二进制字的改变来停止扫描。 此后，只要AFT信号偏离预定条件，通过递增或递减二进制字来对调谐电压进行补偿。 然而，当RF载波信号丢失时，该校正被禁止，使得期望的调谐不会丢失，由此当RF载波信号重新出现时所选择的信道仍被调谐。
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17.发明授权
公开(公告)号：US4387401A
公开(公告)日：1983-06-07
申请号：US305688
申请日：1981-09-25
CPC分类号： H03J5/0263 , H03J1/0033 , H03J7/20
摘要： In a sweep type tuning system capable of sweeping through a desired range of carrier frequencies selectively in one of two directions, a carrier detector includes a discriminator for generating a discriminator signal as the frequency range is swept which has a first amplitude portion when the frequency of a tuned carrier is less than a predetermined nominal value and a second amplitude portion when the frequency of the tuned carrier is greater than the predetermined nominal value. A sequence detector determines the sequence of generation of the first and second portions of the discriminator signal to generate a signal indicating the presence of the tuned carrier. The presence indicating signal is generated when the sweeping takes place in a first direction if the first and then the second portions are sequentially generated and when the sweeping takes place in the second direction if the second and then first portion are sequentially generated.
摘要翻译： 在能够在两个方向中的一个方向上选择性扫描期望范围的载波频率的扫描型调谐系统中，载波检测器包括用于产生鉴频器信号的鉴频器，当频率范围被扫描时，该频率范围具有第一振幅部分，当频率 当调谐载波的频率大于预定标称值时，调谐载波小于预定标称值和第二振幅部分。 序列检测器确定鉴别器信号的第一和第二部分的产生序列，以产生指示调谐载波的存在的信号。 如果顺序地产生第一和第二部分，并且当依次产生第二部分和第二部分时在第二方向上进行扫描，则在第一方向上进行扫描时，产生存在指示信号。
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公开(公告)号：US4106059A
公开(公告)日：1978-08-08
申请号：US779126
申请日：1977-03-18
CPC分类号： H03L7/18 , H03J5/0272
摘要： A phase locked loop tuning system for a television receiver includes a voltage controlled local oscillator for generating a local oscillator signal corresponding to the channel presently selected by a viewer, a source of a reference frequency signal, a phase detector for generating pulses at the reference frequency the duration of which is a function of the phase and frequency relationship between the reference frequency signal and the local oscillator signal, and a low pass filter for deriving a D.C. control voltage for the voltage controlled oscillator from the output signal of the phase detector. The reference frequency is related to the horizontal and vertical television scanning rates in a predetermined manner so that undesired image components generated in response to unfiltered pulse components of the control voltage occurring at the reference frequency are substantially cancelled as an image is formed.
摘要翻译： 用于电视接收机的锁相环调谐系统包括：电压控制本地振荡器，用于产生对应于观众目前选择的频道的本地振荡器信号，参考频率信号源，用于产生参考频率脉冲的相位检测器 其持续时间是参考频率信号和本地振荡器信号之间的相位和频率关系的函数，以及用于从相位检测器的输出信号导出压控振荡器的DC控制电压的低通滤波器。 参考频率以预定方式与水平和垂直电视扫描速率相关，使得响应于在参考频率处出现的控制电压的未滤波的脉冲分量产生的不期望的图像分量基本上被消除，因为形成图像。
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公开(公告)号：US07425920B2
公开(公告)日：2008-09-16
申请号：US11346643
申请日：2006-02-03
申请人： John G. N. Henderson , Carl Scarpa
发明人： John G. N. Henderson , Carl Scarpa
IPC分类号： H01Q3/24
CPC分类号： H01Q1/007 , H01Q1/24 , H01Q3/2611 , H01Q7/005
摘要： Antennas with steerable antenna patterns and techniques for using such antennas are described. In accordance with the invention, antenna patterns with one or more NULLs are used. Through the use of digital control signals the antenna pattern is steered so that a source of signal interference, e.g., a multipath signal, will be located in a NULL. In this manner the received signal's S/N ratio can be maximized thereby facilitating demodulation. The techniques of the invention can be applied to television, computer devices, mobile devices and a wide range of other systems. Digital commands to control an antenna may include multiple information fields, e.g., a direction field, a channel field, a gain field and a polarity field. Antennas incapable of supporting the specified fields disregard information in fields which are not supported. Information in each supported field is decoded and used to adjust the corresponding antenna characteristic.
摘要翻译： 描述了具有可导向天线方向图和使用这种天线的技术的天线。 根据本发明，使用具有一个或多个NULL的天线方向图。 通过使用数字控制信号，导航天线方向图，使得诸如多路径信号的信号干扰源将位于空值中。 以这种方式，可以使接收信号的S / N比最大化，从而便于解调。 本发明的技术可以应用于电视，计算机设备，移动设备以及各种其它系统。 用于控制天线的数字命令可以包括多个信息字段，例如方向字段，信道字段，增益字段和极性字段。 无法支持指定字段的天线无视不支持的字段中的信息。 每个支持的字段中的信息被解码并用于调整相应的天线特性。
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20.发明授权
公开(公告)号：US4947250A
公开(公告)日：1990-08-07
申请号：US404024
申请日：1989-09-07
申请人： John G. N. Henderson
发明人： John G. N. Henderson
IPC分类号： H04N11/24
CPC分类号： H04N11/008
摘要： In a system for processing a widescreen television signal containing center and side panel components, low frequency side panel information is time compressed before being disposed in a horizontal image overscan region. The compressed side panel low frequency information is frequency modulated onto an FM subcarrier to improve the noise characteristics of the compressed side panel information when transmitted over a noisy channel.
摘要翻译： 在用于处理包含中心和侧面板组件的宽屏幕电视信号的系统中，低频侧面板信息在被布置在水平图像过扫描区域之前被时间压缩。 压缩侧面板低频信息被频率调制到FM子载波上，以在通过噪声信道传输时改善压缩侧面板信息的噪声特性。
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