公开(公告)号：US4130842A

公开(公告)日：1978-12-19

申请号：US765564

申请日：1977-02-04

申请人： Luigi C. Gallo ,  Junaid Sheikh

发明人： Luigi C. Gallo ,  Junaid Sheikh

IPC分类号： G11B27/28 ,  G11B27/34 ,  G11B27/36 ,  H04N1/21 ,  H04N5/78 ,  G06F3/14

CPC分类号： H04N1/2166 ,  G11B27/28 ,  G11B27/34 ,  G11B27/36 ,  G11B2220/20 ,  G11B2220/90 ,  H04N2201/214

摘要： A circuit for generating a deleted data signal, which is reproduced as a blinking cross in a television picture, to provide thereby visual indication that a storage location in a video frame store is unoccupied, and available for recording therein. The blinking effect is created by interlacing one diagonal line generated in one field with an opposing diagonal line generated in a second field at the 30 Hertz frame rate. The deleted data signal corresponding to the blinking cross is recorded in the deleted track, e.g., the still location thereof, whereby the store can be interrogated and the deleted data signal suitably displayed to indicate the availability and location of the track for subsequent recording.

摘要翻译： 一种用于产生被删除的数据信号的电路，其在电视图像中作为闪烁十字进行再现，从而提供视频帧存储器中的存储位置未被占用并且可用于其中的记录的视觉指示。 闪烁效果是通过将在一个场中产生的一个对角线与在30赫兹帧速率的第二场中产生的相对的对角线进行交织而产生的。 对应于闪烁十字的删除的数据信号被记录在删除的轨道中，例如其静止位置，由此可以询问存储器，并且适当地显示删除的数据信号，以指示用于后续记录的磁道的可用性和位置。

公开(公告)号：US5097321A

公开(公告)日：1992-03-17

申请号：US408027

申请日：1989-09-15

申请人： John Stern ,  Luigi C. Gallo ,  Douglas J. George

发明人： John Stern ,  Luigi C. Gallo ,  Douglas J. George

IPC分类号： H04N9/78

CPC分类号： H04N9/78

摘要： A decoding system (10) receives a composite digital NTSC D2 input signal or a composite analog NTSC RS-170A input signal. The decoding system (10) decodes and sample rate converts to a component digital D1 output and a component analog RGB or Y(R-Y) (B-Y) output. A control panel (20) is connected to the decoding system (10) to provide digital control of the important decoding parameters to provide decoding flexibility. The composite video signal is supplied directly to an adaptive combiner (44), through a line comb filter (48) to the adaptive combiner (44), and through a frame comb filter (52) to the adaptive combiner (44). The composite video signal is also supplied to a frame transition or motion detector (58) and to a line transition or motion detector (60). If no frame transition or motion is detected, the adaptive combiner (44) utilizes frame based three dimensional decoding. When frame transition or motion is detected, the adaptive combiner (44) drops back to two dimensional line combing for the decoding. When line transition or motion is detected, the adaptive combiner drops back to supply the video signal directly to band pass filter (62) for bandpass decoding. Thus, for those parts of a scene in which there is motion or vertical detail, the decoding system 10 automatically adapts to line combing or bandpass decoding smoothly within the scene to give high apparent resolution in the scene.

摘要翻译： 解码系统（10）接收复合数字NTSC D2输入信号或复合模拟NTSC RS-170A输入信号。 解码系统（10）对分量数字D1输出和分量模拟RGB或Y（R-Y）（B-Y）（B-Y）输出进行解码和采样率转换。 控制面板（20）连接到解码系统（10）以提供对重要解码参数的数字控制，以提供解码灵活性。 复合视频信号通过线梳状滤波器（48）直接提供给自适应组合器（44），并通过自适应组合器（44）的帧梳状滤波器（52）提供给自适应组合器（44）。 复合视频信号也被提供给帧转换或运动检测器（58）和线路转换或运动检测器（60）。 如果没有检测到帧转换或运动，则自适应组合器（44）利用基于帧的三维解码。 当检测到帧转换或运动时，自适应组合器（44）返回到用于解码的二维线梳理。 当检测到线路转换或运动时，自适应组合器返回以将视频信号直接提供给带通滤波器（62），用于带通解码。 因此，对于具有运动或垂直细节的场景的那些部分，解码系统10在场景内自动适应线梳理或带通解码，以在场景中提供高的视在分辨率。

公开(公告)号：US4514769A

公开(公告)日：1985-04-30

申请号：US108881

申请日：1979-12-31

申请人： Luigi C. Gallo

发明人： Luigi C. Gallo

IPC分类号： G11B17/00 ,  G11B27/034 ,  H04N5/781 ,  H04N9/79 ,  H04N9/808 ,  H04N9/87 ,  H04N9/491

CPC分类号： H04N5/781 ,  G11B17/005 ,  G11B27/034 ,  H04N9/79 ,  H04N9/808 ,  H04N9/87 ,  G11B2220/20

摘要： An analog color video information signal is sampled at times determined by a first clock signal of a predetermined frequency whose phase is reversed on every consecutive horizontal line. The obtained samples are digitized and encoded for recording on a magnetic record medium, with the encoded data timed relative to a second clock signal of the predetermined frequency whose phase is continuous. The reproduced encoded data is processed under the control of two additional clock signals, each of which is of the predetermined frequency and has its phase reversed on every consecutive horizontal line. In the processing, the reproduced data is decoded, reclocked relative to a first of the two additional clock signals, has the chrominance component of the video information selectively inverted and converted back to analog form under the control of the second of the two additional clock signals.

摘要翻译： 模拟彩色视频信息信号在由每个连续水平行相反的预定频率的第一时钟信号确定的时间被采样。 将获得的样本数字化并编码用于在磁记录介质上记录，其中编码数据相对于相位连续的预定频率的第二时钟信号定时。 再现的编码数据在两个额外的时钟信号的控制下进行处理，每个附加的时钟信号都是预定频率，并且在每个连续的水平行上具有相位反转。 在处理中，再现数据被解码，相对于两个附加时钟信号中的第一个被重新编码，在视频信息的色度分量被选择性地反相并在两个附加时钟信号中的第二个的控制下被转换成模拟形式 。

公开(公告)号：US4122492A

公开(公告)日：1978-10-24

申请号：US763461

申请日：1977-01-28

申请人： Luigi C. Gallo

发明人： Luigi C. Gallo

IPC分类号： G11B17/00 ,  H04N5/781 ,  H04N9/793 ,  H04N9/808 ,  H04N9/535

CPC分类号： G11B17/005 ,  H04N5/781 ,  H04N9/793 ,  H04N9/808 ,  G11B2220/20

摘要： A method and apparatus is disclosed for restoring the d.c. level of a composite video signal which has a burst of chrominance subcarrier cycles occuring in the horizontal blanking period. The d.c. level of the signal is measured using integrating techniques for a period that corresponds to a whole number of cycles of the chrominance subcarrier and the measured level is used to generate an error signal for adjusting the level to the proper volume. By using a precise whole number of cycles during integration, the d.c. level can be accurately measured.

摘要翻译： 公开了一种恢复直流电压的方法和装置。 在水平消隐期间发生色度副载波周期突发的复合视频信号的电平。 直径 使用对应于色度副载波的整个周期的周期的积分技术来测量信号的电平，并且使用所测量的电平来产生用于将电平调整到适当音量的误差信号。 通过在整合期间使用精确的整数周期，直流 水平可以准确测量。

公开(公告)号：US4119999A

公开(公告)日：1978-10-10

申请号：US763941

申请日：1977-01-28

申请人： Luigi C. Gallo

发明人： Luigi C. Gallo

IPC分类号： G11B17/00 ,  H04N5/781 ,  H04N9/808 ,  H04N9/87 ,  H04N9/44 ,  H04N5/78 ,  H04N9/32

CPC分类号： H04N9/8722 ,  G11B17/005 ,  H04N5/781 ,  H04N9/808 ,  G11B2220/20

摘要： Apparatus is disclosed for processing an analog color video information signal for recording on a magnetic media which involves stripping the horizontal synchronization pulses from the horizontal blanking intervals of the analog video information signal, sampling the video information signal at a predetermined data rate that is a multiple of the chrominance subcarrier frequency and converting the samples into a number of digital data streams having said predetermined data rate and thereafter inserting a unique digital synchronization word into the horizontal blanking interval on at least alternate ones of successive video lines so that the synchronization word is synchronized relative to the chrominance subcarrier and the phase relationship between the synchronization words and the subcarrier thereby remains constant.

摘要翻译： 公开了用于处理用于在磁性介质上记录的模拟彩色视频信息信号的装置，其涉及从模拟视频信息信号的水平消隐间隔中剥离水平同步脉冲，以预定数据速率对多路视频信号信号进行采样 并将样本转换成具有所述预定数据速率的多个数字数据流，然后在至少交替的连续视频行中将唯一的数字同步字插入到水平消隐间隔中，使得同步字被同步 相对于色度副载波，并且同步字与子载波之间的相位关系保持不变。

公开(公告)号：US4110798A

公开(公告)日：1978-08-29

申请号：US762902

申请日：1977-01-26

申请人： Jerry W. Miller ,  Luigi C. Gallo

发明人： Jerry W. Miller ,  Luigi C. Gallo

IPC分类号： G11B20/10 ,  H04N5/781 ,  H04N9/793 ,  H04N9/808 ,  G11B5/45

CPC分类号： G11B20/10212 ,  H04N5/781 ,  H04N9/7933 ,  H04N9/808 ,  G11B2220/20

摘要： A frequency response equalizer includes a parallel combination of a low-pass integrating circuit and a high-pass differentiating circuit. Both circuits receive an input signal from a reproduce head followed by a preamplifier. Each circuit provides a 90.degree. phase shift with respect to the input signal, equal in magnitude and opposite in sense. A subtraction circuit coupled to the respective outputs of both the integrating and differentiating circuit provides a difference signal of the respective output signals of both circuits. The resulting difference signal represents an amplitude and phase equalized signal.

摘要翻译： 频率响应均衡器包括低通积分电路和高通微分电路的并联组合。 两个电路从再现头接收前置放大器的输入信号。 每个电路相对于输入信号提供90°的相移，其幅度相等且相反。 耦合到积分和微分电路的相应输出的减法电路提供两个电路的相应输出信号的差分信号。 所得差分信号表示振幅和相位均衡的信号。

公开(公告)号：US4349832A

公开(公告)日：1982-09-14

申请号：US108912

申请日：1979-12-31

申请人： Luigi C. Gallo

发明人： Luigi C. Gallo

IPC分类号： G11B17/00 ,  H04N9/896 ,  H04N5/785 ,  H04N9/02

CPC分类号： H04N9/896 ,  G11B17/005 ,  G11B2220/20

摘要： A first digital data memory is responsive to a first clock signal varying at a rate in accordance with the timing errors contained in a stream of digital data to enter the digital data for temporary storage. The stored digital data is retrieved from storage in the first digital data memory in response to a second clock signal of a stable reference rate. The relative times of entering and retrieving the digital data in the first digital memory are set according to the occurrence of a selected sequence of digital data bits contained in the digital data. The digital data retrieved from the first digital data memory is further temporarily stored in a second digital data memory for an interval determined by the time difference between the occurrence of the selected sequence of digital data bits and the occurrence of a reference time signal.

摘要翻译： 第一数字数据存储器响应于根据包含在数字数据流中的定时错误的速率变化的第一时钟信号，以输入用于临时存储的数字数据。 响应于稳定参考速率的第二时钟信号，从第一数字数据存储器中的存储器检索存储的数字数据。 根据包含在数字数据中的所选择的数字数据位序列的出现来设置在第一数字存储器中输入和检索数字数据的相对时间。 从第一数字数据存储器检索的数字数据被进一步临时存储在第二数字数据存储器中，该间隔由所选择的数字数据位序列的出现与基准时间信号的出现之间的时间差确定。

公开(公告)号：US4181817A

公开(公告)日：1980-01-01

申请号：US763762

申请日：1977-01-28

申请人： Luigi C. Gallo

发明人： Luigi C. Gallo

IPC分类号： G11B17/00 ,  H04N5/781 ,  H04N9/808 ,  H04L1/00

CPC分类号： G11B17/005 ,  H04N5/781 ,  H04N9/808 ,  G11B2220/20

摘要： Apparatus is disclosed for transmitting through a transmission channel a digital data stream of the type where the position of a level transition within a bit cell determines the information content of the bit cell. As the data stream is transmitted through the transmission channel, degradation of the transitions can occur due to differring response characteristics with respect to level transitions in opposite directions. A pulse for each level transition of the data stream is generated, the pulses converted to a pair of complementary level pulses for transmission, a single level pulse is produced from the transmitted complementary level pulses when the instantaneous level of both said complementary pulses are the same during a transition and thereafter an output signal is provided having a level transition for each pulse.

摘要翻译： 公开了用于通过传输信道发送其中位单元内的电平转换的位置确定位单元的信息内容的类型的数字数据流的装置。 当数据流通过传输通道传输时，由于相对于相反方向的电平转换的响应特性不同，可能会发生转换的劣化。 产生用于数据流的每个电平转换的脉冲，将脉冲转换成一对互补电平脉冲以进行传输，当两个所述互补脉冲的瞬时电平相同时，从发送的互补电平脉冲产生单电平脉冲 在转换期间，提供具有每个脉冲的电平转换的输出信号。

公开(公告)号：US4122487A

公开(公告)日：1978-10-24

申请号：US763453

申请日：1977-01-28

申请人： Daniel A. Beaulier ,  Luigi C. Gallo

发明人： Daniel A. Beaulier ,  Luigi C. Gallo

IPC分类号： G11B17/00 ,  H04N5/781 ,  H04N9/808 ,  H04N9/87 ,  H04N5/78 ,  H03B3/04 ,  H04B1/04 ,  H04N9/02

CPC分类号： H04N9/8722 ,  G11B17/005 ,  H04N5/781 ,  H04N9/808 ,  G11B2220/20

摘要： A method and apparatus is disclosed for sampling an analog information signal having an associated carrier signal at precise phase positions with respect to said carrier, which involves sampling the information signal at predetermined phase positions relative to the carrier signal using a phase locked loop to maintain the sampling positions reasonably close to the predetermined phase positions and thereafter examining the discrete samples and generating an error signal that indicates any phase deviation and adjusting the sampling so that the error signal approaches zero and the samples are taken at said precise phase positions.

摘要翻译： 公开了一种用于对相对于所述载波的精确相位位置具有相关联的载波信号的模拟信息信号进行采样的方法和装置，其涉及使用锁相环对相对于载波信号的预定相位位置处的信息信号进行采样，以维持 采样位置合理地接近预定相位位置，然后检查离散采样并产生指示任何相位偏差并调整采样的误差信号，使得误差信号接近零，并且采样在所述精确相位位置。

公开(公告)号：US4122478A

公开(公告)日：1978-10-24

申请号：US763792

申请日：1977-01-28

申请人： Luigi C. Gallo ,  Daniel A. Beaulier

发明人： Luigi C. Gallo ,  Daniel A. Beaulier

IPC分类号： G11B17/00 ,  H04N5/781 ,  H04N9/808 ,  H04N5/78 ,  H04N9/02

CPC分类号： G11B17/005 ,  H04N5/781 ,  H04N9/808 ,  G11B2220/20

摘要： Apparatus is disclosed for providing a square wave output signal for use in alternating the phase of a sampling clock signal on successive video lines of a video signal having a horizontal blanking interval at the beginning of each video line and a burst of cycles of chrominance subcarrier in each of said horizontal blanking intervals. The square wave output signal changes between first and second levels during alternate video lines, but the signal is always maintained at one of said levels during the occurrence of the bursts of cycles. The square wave signal controls the sampling clock signal generator so that the clock signal is of a first phase while the square wave signal is at the first level and of an opposite phase while the square wave signal is at the second level.

摘要翻译： 公开了一种用于提供方波输出信号的装置，用于在每个视频行开始处具有水平消隐间隔的视频信号的连续视频行上的采样时钟信号的相位交替，以及色度副载波的周期的突发 每个所述水平消隐间隔。 在交替视频行期间，方波输出信号在第一和第二电平之间变化，但是在周期脉冲串发生期间，信号始终保持在所述电平之一。 方波信号控制采样时钟信号发生器，使得时钟信号为第一相位，而方波信号处于第一电平，而方波信号处于第二电平时为相反相位。