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1. 发明授权

US5386243A Ghost signal cancellation system for television signals 失效
标题翻译： Ghost信号取消系统用于电视信号
公开(公告)号：US5386243A
公开(公告)日：1995-01-31
申请号：US96156
申请日：1993-07-22
申请人： Jinshi Huang , Robert F. Casey
发明人： Jinshi Huang , Robert F. Casey
IPC分类号： H04N5/21 , H04N5/213
CPC分类号： H04N5/211
摘要： A ghost cancellation system for filtering out ghosts in a received video signal including an active filter having a filtering function defined by a first set of coefficients (ak.sub.old) and having a input and a output. A transmitted ghost cancellation reference (GCR) signal is applied to the input of the active filter during a vertical blanking period to generate a filtered GCR signal at the output of the active filter. The filtered GCR signal is compared with a ghostless GCR signal to obtain an error signal, and the filter coefficients are adjusted based on the error signal to obtain a set of new coefficients (ak.sub.new). The active filter includes a feedforward FIR filter and an adder serially connected between the input and the output, a feedback IIR filter and a switch serially connected between the output and-the adder, the feedforward FIR filter and the feedback IIR filter having filtering functions defined by the coefficients. The active filter is reconfigurable as a matched filter by passing the error signal serially through the feedforward FIR filter and the feedback IIR filter, the matched filter receiving the error signal and producing a set of impulses (dk) which represent received ghost delays and coefficients where ##EQU1## where x(j) is time-reversed sequence of the coefficients in the bank (ideal GCR sequence), and e(j+k) is the difference between the received average GCR and the reference GCR.
摘要翻译：一种用于滤除接收到的视频信号中的重影的重影消除系统，包括具有由第一组系数（akold）定义并具有输入和输出的滤波函数的有源滤波器。在垂直消隐期间，发送的重影消除参考（GCR）信号被施加到有源滤波器的输入，以在有源滤波器的输出处产生滤波GCR信号。滤波GCR信号与无鬼GCR信号进行比较以获得误差信号，并且基于误差信号调整滤波器系数以获得一组新系数（aknew）。有源滤波器包括前馈FIR滤波器和串联连接在输入和输出之间的加法器，反馈IIR滤波器和串联连接在输出和加法器之间的开关，前馈FIR滤波器和具有定义的滤波函数的反馈IIR滤波器通过系数。有源滤波器可以通过将误差信号串行地通过前馈FIR滤波器和反馈IIR滤波器，匹配滤波器接收误差信号并产生一组表示接收的重影延迟和系数的脉冲（dk）来重新配置为匹配滤波器，其中银行中的图像（理想GCR序列）和e（j + k）是接收平均GCR和参考GCR之间的差。

2. 发明授权

US4651211A Video signal motion detecting apparatus 失效
标题翻译：视频信号运动检测装置
公开(公告)号：US4651211A
公开(公告)日：1987-03-17
申请号：US819861
申请日：1986-01-17
申请人： Hermann J. Weckenbrock , Barbara J. Roeder , Robert F. Casey , Leopold A. Harwood , Werner F. Wedam
发明人： Hermann J. Weckenbrock , Barbara J. Roeder , Robert F. Casey , Leopold A. Harwood , Werner F. Wedam
IPC分类号： H04N9/78 , H04N5/14 , H04N5/21 , H04N7/32 , H04N9/77 , H04N11/04 , H04N11/20
CPC分类号： H04N5/144
摘要： A motion detector for detecting interimage motion represented by composite video signals analyzes both the chrominance and luminance components for image motion. Interimage motion represented by the luminance component is determined from interimage signal differences. The interimage signal differences are separated into high and low frequency spectra corresponding to fine and coarse luminance image detail. Selected signal differences from the low frequency spectrum are summed and threshold detected to determine motion in the coarse image detail. The high frequency spectrum of the sample differences are applied to parallel summing circuits which sum different combinations of sample differences in order to discriminate motion signals from non-moving chrominance transitions. The detection signals from the high and low frequency motion detectors are combined to produce a luminance motion signal. Interimage motion represented by the chrominance component is detected by combining selected ones of interimage signal sums. The interimage signal sums are high pass filtered and applied to parallel combining elements which discriminate chrominance motion from vertical luminance transitions.

3. 发明授权

US4724487A Interlace inversion detector for a picture-in-picture video signal generator 失效
标题翻译：用于画中画视频信号发生器的隔行反转检测器
公开(公告)号：US4724487A
公开(公告)日：1988-02-09
申请号：US15407
申请日：1987-02-17
申请人： Robert F. Casey
发明人： Robert F. Casey
IPC分类号： H04N5/265 , H04N5/45 , H04N5/272 , H04N5/262
CPC分类号： H04N5/45
摘要： A picture-in-picture image signal generator includes a source of an auxiliary video signal and an auxiliary synchronization component separator which produces an auxiliary odd/even field signal. Auxiliary image data is stored in a memory for subsequent retrieval. A source of a main video signal and associated synchronization component separator, which produces a main odd/even field signal, is also provided. A signal combiner combines a portion of the main video signal with data retrieved from the memory to form a picture-in-picture video signal. An interlace inversion detector generates a signal indicating an interlace inversion condition in response to the main and auxiliary odd/even field signals. A correction to the interlacing is made in response to the interlace inversion signal.
摘要翻译：画中画图像信号发生器包括辅助视频信号源和产生辅助奇数/偶数场信号的辅助同步分量分离器。辅助图像数据存储在存储器中用于随后的检索。还提供了产生主奇/偶场信号的主视频信号和相关同步分量分离器的源。信号组合器将主视频信号的一部分与从存储器检索的数据组合以形成画中画视频信号。交错反转检测器响应于主奇偶校准信号产生指示交错反转条件的信号。响应于交错反转信号进行对隔行扫描的校正。

4. 发明授权

US4656501A Image transition detector 失效
标题翻译：图像转换检测器
公开(公告)号：US4656501A
公开(公告)日：1987-04-07
申请号：US793644
申请日：1985-10-31
申请人： Robert F. Casey , Kirk A. Law
发明人： Robert F. Casey , Kirk A. Law
IPC分类号： H04N5/21 , H04N9/68 , H04N9/77 , H04N9/78
CPC分类号： H04N9/77 , H04N9/78
摘要： A transition detector is disclosed which compares comb filtered component signals from adjacent image lines. A detector detects signals in the band of frequencies normally occupied by color representative information for a given line and two adjacent lines. A control signal generator generates a control signal in response to the relative levels of the detected signals for the given line, and the lines adjacent the given line. The composition of the comb filtered component signal coupled from the comb filter to the component processing channel is altered in response to the generated control signal.
摘要翻译：公开了一种转换检测器，其比较来自相邻图像行的梳状滤波分量信号。检测器检测通常由给定行和两条相邻行的颜色代表信息占用的频率带中的信号。控制信号发生器响应于给定线路的检测信号的相对电平以及与给定线路相邻的线路产生控制信号。响应于产生的控制信号改变从梳状滤波器耦合到分量处理信道的梳状滤波分量信号的组成。

5. 发明授权

US4730216A Raster distortion correction circuit 失效
标题翻译：栅格失真校正电路
公开(公告)号：US4730216A
公开(公告)日：1988-03-08
申请号：US881710
申请日：1986-07-03
申请人： Robert F. Casey , Werner F. Wedam
发明人： Robert F. Casey , Werner F. Wedam
IPC分类号： H04N7/01 , H04N3/23 , H04N9/28 , H04N11/20
CPC分类号： H04N3/23 , H04N9/28
摘要： In an apparatus for displaying the picture information of an incoming interlaced television signal in noninterlaced raster scanning display on the faceplate of a picture tube, each video line of the television signal is separated into R, G and B color component signals. Each video line is compressed, or speeded-up, at a variable rate and delayed by a variable delay time to provide a speeded-up signal that is coupled to the corresponding electron beam gun of the picture tube. Each of the variable rate and delay is controlled in accordance with information relating to distortions of the raster scanning display. In this way, distortion, such as east-west or convergence, is reduced when the speeded-up signal is displayed.
摘要翻译：在用于在显像管的面板上以非隔行光栅扫描显示的方式显示进入的隔行扫描电视信号的图像信息的装置中，电视信号的每个视频行被分成R，G和B色分量信号。每个视频行以可变速率被压缩或加速，并延迟可变延迟时间，以提供耦合到显像管的相应电子束枪的加速信号。根据与光栅扫描显示的失真相关的信息来控制可变速率和延迟中的每一个。以这种方式，当显示加速信号时，诸如东西或收敛的失真被减小。

6. 发明授权

US4698675A Progressive scan display system having intra-field and inter-field processing modes 失效
标题翻译：具有场内和场间处理模式的逐行扫描显示系统
公开(公告)号：US4698675A
公开(公告)日：1987-10-06
申请号：US912631
申请日：1986-09-29
申请人： Robert F. Casey
发明人： Robert F. Casey
IPC分类号： H04N7/01 , H04N5/44
CPC分类号： H04N7/012
摘要： An interlaced video input signal is applied to a speed-up unit which time compresses and interleaves lines of the input signal with lines of a further signal derived therefrom for display in progressive scan fashion on a display device. The further signal is generated by circuitry which derives line-interpolated, field-delayed and vertical detail signals from the input signal. Selection circuitry selects the field delayed signal for display when the detail signal is above a threshold level and the field-delayed signal is concurrently within a range bounded by the input signal and the line-delayed signal, the interpolated signal being selected for display otherwise to thereby provide a progressive scan display having relatively high vertical detail characteristic of interfield processing and immunity to motion artifacts characteristic of intra-field processing. Noise due to quantizing errors or poor input signal-to-noise conditions is further reduced by range extension circuitry which increases the selection range beyond the values bounded by the input and line-delayed signals for selection of the field-delayed signal.
摘要翻译：隔行扫描的视频输入信号被施加到加速单元，该加速单元利用从其导出的另一个信号的行来压缩和交织输入信号的行，以便在显示装置上以逐行扫描方式显示。另外的信号由从输入信号导出线插值，场延迟和垂直细节信号的电路产生。当细节信号高于阈值电平时，选择电路选择用于显示的场延迟信号，并且场延迟信号同时处于由输入信号和线延迟信号限定的范围内，内插信号被选择为不显示从而提供具有相对较高的场间处理的垂直细节特性的逐行扫描显示和对场内处理特性的运动伪像的抵抗。通过量程扩展电路进一步减少由于量化误差或输入信号噪声条件差引起的噪声，该电路将选择范围增加到超过由输入和线延迟信号限定的值，以选择场延迟信号。

7. 发明授权

US4839728A Picture-in-picture video signal generator 失效
标题翻译：画中画视频信号发生器
公开(公告)号：US4839728A
公开(公告)日：1989-06-13
申请号：US029036
申请日：1987-03-23
申请人： Robert F. Casey
发明人： Robert F. Casey
IPC分类号： H04N5/265 , H04N5/45
CPC分类号： H04N5/45
摘要： A picture-in-picture video signal generator includes a source of an auxiliary video signal, and a producer of successive samples representing the auxiliary video signals. A self-sequencing memory includes a data input terminal coupled to the producer of auxiliary video samples; a write address input terminal, for receiving an initial write address; a data output terminal and a read address input terminal for receiving an initial read address. Write control circuitry is coupled to the write address terminal of the self-sequencing memory, and generates initial write addresses in synchronism with horizontal line intervals of the auxiliary video signal. A source of a main video signal is also provided. Read control circuitry is coupled to the read address terminal of the self-sequencing memory, and generates initial read addresses in synchronism with horizontal line intervals of the main video signal. The main video signal is combined with samples from the self-sequencing memory to form a video signal representing a picture-in-picture image.

8. 发明授权

US4399769A Procedures for raising fish 失效
标题翻译：养鱼的程序
公开(公告)号：US4399769A
公开(公告)日：1983-08-23
申请号：US268903
申请日：1981-06-01
申请人： Robert F. Casey
发明人： Robert F. Casey
IPC分类号： A01K61/00 , A01K61/02 , A01K63/04
CPC分类号： A01K63/04 , A01K61/003 , A01K61/02
摘要： A procedure for feeding fish, such as rainbow trout, in a tank is disclosed. This procedure utilizes a suction sweeper on the bottom of the tank. By administering a predetermined amount of food to the tank and measuring how much food is not eaten by the fish, it is possible to reduce the amount of excess food. In addition, by cleaning the tank immediately prior to feeding and prompt recovery of the excess food, it is possible to recycle excess food without suffering from contamination, bacterial degradation or other unhealthy effects.
摘要翻译：公开了将鱼如虹鳟饲养在罐中的方法。该程序在罐底部使用吸尘器。通过向罐中施加预定量的食物并测量鱼不吃多少食物，可以减少过量食物的量。此外，通过在进料前立即清洗罐并迅速恢复多余的食物，可以回收多余的食物，而不会受到污染，细菌降解或其他不健康的影响。

9. 发明授权

US4221187A Apparatus for raising fish 失效
标题翻译：养鱼设备
公开(公告)号：US4221187A
公开(公告)日：1980-09-09
申请号：US874098
申请日：1978-02-01
申请人： Robert F. Casey
发明人： Robert F. Casey
IPC分类号： A01K63/00 , A01K61/00
CPC分类号： A01K61/003 , A01K61/00
摘要： Apparatus for raising fish, such as rainbow trout, in a controlled environment is disclosed comprising a main fish tank equipped with means for providing laminar water flow through the tank and also equipped with sweeper means for removing particulate matter from the bottom of the tank.
摘要翻译：公开了一种用于在受控环境中养殖鱼如虹鳟鱼的装置，其包括装有用于提供层流水通过罐的装置的主鱼缸，并且还配备有用于从罐的底部除去颗粒物质的清扫装置。

10. 发明授权

US5416527A Frequency locking system using sound intermediate frequency (IF) carrier in a television signal 失效
标题翻译：频率锁定系统在电视信号中使用声音中频（IF）载波
公开(公告)号：US5416527A
公开(公告)日：1995-05-16
申请号：US168625
申请日：1993-12-15
申请人： Robert F. Casey
发明人： Robert F. Casey
IPC分类号： H04N5/04 , H04N5/44 , H04N5/62
CPC分类号： H04N5/62 , H04N5/04 , H04N5/44
摘要： A frequency controlled clock circuit for use in a television receiver utilizes a detected sound intermediate frequency (IF) signal for use in controlling a voltage controlled oscillator and thereby provide immunity from ghost signals in the transmitted video signal. A phase locked loop responds to phase errors detected from the voltage controlled oscillator and a reference signal from the sound IF signal to control the frequency of the voltage controlled oscillator.
摘要翻译：用于电视接收机的频率控制时钟电路利用检测到的声音中频（IF）信号用于控制压控振荡器，从而提供对发送的视频信号中的重影信号的抗扰。锁相环对从压控振荡器检测到的相位误差和来自声音IF信号的参考信号进行响应，以控制压控振荡器的频率。

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