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公开(公告)号：US4484236A
公开(公告)日：1984-11-20
申请号：US442265
申请日：1982-11-17
申请人： James H. Wilkinson
发明人： James H. Wilkinson
IPC分类号： H04N5/783 , G11B5/008 , G11B5/02 , G11B5/09 , G11B5/53 , G11B15/12 , G11B15/14 , G11B20/00 , H04N5/7826 , H04N5/93 , H04N5/937 , G11B5/52
CPC分类号： G11B5/0086 , G11B15/125 , G11B15/14 , G11B5/00878 , G11B5/534 , H04N5/937
摘要： A magnetic tape recording and reproducing arrangement comprising a rotary drum, helical scan digital video tape recorder including first and second head assemblies mounted diametrically on a rotary drum, the first head assembly including first and second heads having gaps of opposite azimuth angle, and third and fourth heads having gaps of opposite azimuth angle to the first and second heads respectively, the second head assembly including fifth and sixth heads having gaps of opposite azimuth angle, and seventh and eighth heads having gaps of opposite azimuth angle to the fifth and sixth heads respectively, tape guides to wrap a tape more than 180.degree. around the drum, in a recording operation the first head assembly through the first and second heads and the second head assembly through the fifth and sixth heads alternately recording pairs of skew tracks on the tape such that the tracks alternate in azimuth angle, and each of the first, second, fifth and sixth heads recording video data in a track for substantially but not exceeding 180.degree. of each complete rotation of the drum and vertical parity data in the track for some further part of each complete rotation of the drum, the further part lying wholly beyond 180.degree., replay amplifiers to derive respective reproduced signals from all the heads, multiplexers to distribute the reproduced signals to four output channels, and a control arrangement including a programmable read-only memory to control the multiplexers in dependence on whether the selected reproduction mode is the normal mode, a slow shuttle mode or a fast shuttle mode.
摘要翻译： 一种磁带记录和再现装置，包括旋转鼓，螺旋扫描数字录像机，其包括径向安装在旋转磁鼓上的第一和第二磁头组件，所述第一磁头组件包括具有相对方位角的间隙的第一和第二磁头， 第四头部分别具有与第一和第二头部相对的方位角的间隙，第二头部组件包括具有相反方位角的间隙的第五和第六头部，以及分别与第五和第六头部具有相反方位角的间隙的第七和第八头部 带子引导件围绕磁鼓缠绕180度以上的磁带，在记录操作中，第一磁头组件通过第一和第二磁头以及第二磁头组件通过第五和第六磁头交替地记录在磁带上的成对的斜轨道， 轨道以方位角交替，并且第一，第二，第五和第六头中的每一个记录视频数据 在轨道中的每个完全旋转的轨道基本上但不超过180°，并且轨道中的垂直奇偶校验数据在滚筒的每次完全旋转的另外一部分中，另外部分完全超过180度，重放放大器以导出 来自所有头部的复用信号，将再现信号分配给四个输出通道的多路复用器，以及包括可编程只读存储器的控制装置，以根据所选择的再现模式是正常模式来控制多路复用器， 模式或快速穿梭模式。
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32.发明授权Method and apparatus for decoding and recording composite digital television signals to prevent degradation of the signals 失效用于解码和记录复合数字电视信号以防止信号劣化的方法和装置
公开(公告)号：US4464685A
公开(公告)日：1984-08-07
申请号：US537781
申请日：1983-09-30
申请人： James H. Wilkinson
发明人： James H. Wilkinson
CPC分类号： H04N11/16 , H04N11/04 , H04N9/8042
摘要： A decoder-recoder arrangement for decoding a composite digital television signal for recording on a digital video recorder and for subsequently recoding the reproduced signal, the arrangement comprising a decoder including filters for separating two chrominance components from the composite digital television signal, demodulators for demodulating the chrominance components, sample rate reducers for reducing the sample rates of the demodulated chrominance components, interpolators for interpolating samples into the sample-reduced demodulated chrominance components to restore the sample rate to the original value, modulators for remodulating the interpolated chrominance components, an adder for adding together the modulated interpolated chrominance components, and a subtractor for subtracting the output of the adder from the input composite digital television signal; and a recoder including interpolators for interpolating samples into said sample-reduced demodulated chrominance components to restore the sample rate to the orignal sample value, modulators for modulating the interpolated chromiance components obtained from the interpolators, an adder for adding together the outputs of the modulators, and a further adder for adding the output of the adder to the output of the subtractor of the decoder to derive the original composite digital television signal.
摘要翻译： 一种解码器 - 重新编码器装置，用于对复合数字电视信号进行解码，以在数字视频记录器上进行记录，并随后对再生信号进行编码，该装置包括一个解码器，该解码器包括用于从复合数字电视信号中分离两个色度分量的滤波器，解调器 色度分量，用于降低解调色度分量的采样率的采样率减少器，用于将样本内插到采样减小的解调色度分量中以将采样率恢复到原始值的内插器，用于重新调制内插色度分量的调制器，用于 将调制内插色度分量相加在一起;以及减法器，用于从输入的复合数字电视信号中减去加法器的输出; 以及编码器，包括用于将样本内插到所述采样降低的解调色度分量中以将采样率恢复为标准采样值的内插器，用于调制从内插器获得的内插色度分量的调制器，用于将调制器的输出相加在一起的加法器， 以及另外的加法器，用于将加法器的输出与解码器的减法器的输出相加以导出原始的复合数字电视信号。
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公开(公告)号：US4410990A
公开(公告)日：1983-10-18
申请号：US250928
申请日：1981-04-06
申请人： James H. Wilkinson
发明人： James H. Wilkinson
CPC分类号： H04L7/048
摘要： Frame information is recovered from a stream of binary data formed at a transmitter from a block of m.times.n information bits comprising m groups of n bits plus m parity bits, one for each said group of n bits, these parity bits having then been scrambled by performing an exclusive-OR operation in a gate on each parity bit with a respective bit of an m-bit parity scrambling code, said block of bits together with the scrambled parity bits forming a frame for transmission over a transmission link. At a receiver new parity bits are produced in a parity bit generator at the incoming bit rate from the incoming stream of binary data by forming a new parity bit from each successive moving group of n+1 incoming bits. The new parity bits are cyclically distributed to n+1 m-bit shift registers and a framing signal is produced when one of the shift registers holds m bits substantially corresponding to the m bits of the parity scrambling code.
摘要翻译： 从包含m位n位加m个奇偶校验位的m×n个信息位块的发送器形成的二进制数据流中恢复帧信息，每个所述n位组一个，这些奇偶校验位然后通过执行 每个奇偶校验位的门中的异或运算具有m比特奇偶校验扰码的相应位，所述比特位与加扰奇偶校验位一起形成用于在传输链路上传输的帧。 在接收器处，通过从n + 1个输入位的每个连续的移动组中形成一个新的奇偶校验位，在来自二进制数据的输入流的输入比特率的奇偶位产生器中产生新的奇偶校验位。 新的奇偶校验位循环地分配到n + 1m位移位寄存器，并且当移位寄存器中的一个保持基本上对应于奇偶校验扰码的m位的m位时，产生成帧信号。
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公开(公告)号：US4343017A
公开(公告)日：1982-08-03
申请号：US226862
申请日：1981-01-21
申请人： James H. Wilkinson
发明人： James H. Wilkinson
CPC分类号： H04N11/165
摘要： A composite PAL television signal decoder comprises a first delay device for delaying an input PAL television signal A by one horizontal line scan period minus one quarter of a period of the color sub-carrier signal to produce a first delayed signal B, a second delay device for delaying the signal A by one half of a period of the color sub-carrier signal to produce a second delayed signal C, a third delay device for delaying the signal C by one horizontal line scan period minus one quarter of a period of the color sub-carrier signal to produce a third delayed signal D, means to derive a luminance component Y as one half (A+D), means to derive a chrominance component U as one quarter (B+D) minus one quarter (A+C), and means to derive a chrominance component V as one quarter (C+D) minus one quarter (A+B).
摘要翻译： 复合PAL电视信号解码器包括：第一延迟装置，用于将输入的PAL电视信号A延迟一个水平行扫描周期减去彩色副载波信号周期的四分之一，以产生第一延迟信号B;第二延迟装置 用于将信号A延迟彩色副载波信号的周期的一半以产生第二延迟信号C;第三延迟装置，用于将信号C延迟一个水平行扫描周期减去颜色周期的四分之一 副载波信号以产生第三延迟信号D，将亮度分量Y导出为一半（A + D）的装置，用于将色度分量U导出为四分之一（B + D）减去四分之一（A + C ），以及将色度分量V导出为四分之一（C + D）减去四分之一（A + B）的装置。
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公开(公告)号：US4321177A
公开(公告)日：1982-03-23
申请号：US177496
申请日：1980-08-12
申请人： James H. Wilkinson
发明人： James H. Wilkinson
CPC分类号： C08J3/02 , C08J2329/10 , Y10T428/31544
摘要： A composition and process for preparing a sprayable solution containing perfluoroalkoxy (PFA) resin. Components of the solution include an aromatic solvent, a binding agent, a surface active agent, and water in addition to the PFA. The solution can generally be sprayed from conventional spraying apparatus at ambient temperatures. A desired use is as a mold release agent, or as a corrosion, wear, or abrasion-resistant coating.
摘要翻译： 一种用于制备含有全氟烷氧基（PFA）树脂的可喷雾溶液的组合物和方法。 除了PFA之外，溶液的组分还包括芳族溶剂，粘合剂，表面活性剂和水。 溶液通常可以在环境温度下从常规喷涂装置喷涂。 期望的用途是作为脱模剂，或作为腐蚀，耐磨或耐磨涂层。
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36.发明授权Apparatus for processing reproduced data including two multiplexers the first of which is responsive to reproduced field information 失效用于处理包括两个多路复用器的再现数据的装置，其中第一复用器响应于再现的字段信息
公开(公告)号：US5579181A
公开(公告)日：1996-11-26
申请号：US70193
申请日：1993-06-02
申请人： James H. Wilkinson
发明人： James H. Wilkinson
IPC分类号： G11B20/12 , G11B5/008 , G11B20/10 , G11B20/18 , G11B27/30 , H04N5/7826 , H04N9/797 , H04N9/804 , H04N9/806 , H04N9/808 , H04N9/888 , H04N5/78
CPC分类号： G11B5/0086 , G11B20/10527 , G11B20/1876 , G11B27/3027 , H04N5/78266 , H04N9/7973 , H04N9/8042 , H04N9/8066 , H04N9/888 , G11B2220/90 , H04N2009/8084
摘要： Apparatus is described for multiplexing data recorded in a spatially and temporally demultiplexed manner on tape 12 and replayed by a plurality of replay heads A, B, C, D organized in groups, where each group includes a plurality of replay heads A/C, B/C, connected in common to a head channel 42, 44. First multiplexers 84, 92 multiplex the data in respective head channel, the output of the first multiplexers being stored in respective video buffers 86, 94. A second multiplexer 88 then selectively addresses the video buffers in response control signals to produce a multiplexed output which can reliably be reproduced even under extreme error conditions and in all playback modes.
摘要翻译： 描述了用于将以空间和时间解复用的方式记录的数据复用在磁带12上并由组成组织的多个重放头A，B，C，D重放的装置，其中每组包括多个重放头A / C，B / C，共同连接到头信道42,44。第一多路复用器84,92对相应头信道中的数据进行复用，第一多路复用器的输出被存储在相应的视频缓冲器86,94中。然后第二多路复用器88选择性地寻址 视频缓冲器在响应控制信号中产生多路复用输出，即使在极端错误条件和所有播放模式下也能可靠地再现。
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公开(公告)号：US5502748A
公开(公告)日：1996-03-26
申请号：US375238
申请日：1995-01-19
申请人： James H. Wilkinson
发明人： James H. Wilkinson
CPC分类号： G11B27/3027 , H04L7/08 , H04N5/935 , H04N5/926
摘要： Apparatus for detecting synchronisation data in an input serial-bit digital signal formed of a series of word blocks each including a predetermined serial group of m bits forming said synchronisation data, comprises a deserialiser for deserialising the input signal to parallel-bit p-bit words where p
摘要翻译： 用于检测由包括形成所述同步数据的m位的预定的串行组的一系列字块形成的输入串行位数字信号中的同步数据的装置包括用于将输入信号反串行到并行位p比特字的解串器 其中p
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38.发明授权Method apparatus and method for reproducing a frequency separated video signal stored on a recording medium 失效用于再现存储在记录介质上的频率分离视频信号的方法装置和方法
公开(公告)号：US5337194A
公开(公告)日：1994-08-09
申请号：US809264
申请日：1991-12-17
IPC分类号： G06T9/00 , G11B5/008 , G11B15/18 , G11B20/00 , G11B20/10 , G11B20/18 , H04N5/7826 , H04N5/783 , H04N5/91 , H04N5/92 , H04N5/926 , H04N7/26 , H04N7/32 , G11B5/02
CPC分类号： H04N5/783 , G11B15/1875 , G11B20/00007 , G11B20/10 , G11B20/1833 , G11B5/0086 , H04N19/124 , H04N19/186 , H04N19/1883 , H04N19/50 , H04N19/61 , H04N19/63 , H04N19/102 , H04N19/13 , H04N19/30 , H04N19/65 , H04N19/89 , H04N5/78263 , H04N5/9261 , H04N5/9264
摘要： During shuttle mode operation in a system for the reproduction and storage of frequency separated video signals, the read head intersects a plurality of tracks corresponding to different fields of the image rather than following complete tracks. Accordingly, the full information for any one field is not recovered. To provide an image during shuttle mode, the system reads the dc luminance information of the tracks it intersects at the part where this information is stored. As the information content of the dc luminance information is relatively high, a recognisable image can be formed from this information alone. The dc luminance information is stored in the center of the tracks with the other components arranged in order of increasing frequency towards the edge of the tape. The data which is most important to generation of a high quality image is stored in a place where it is less likely to be degraded.
摘要翻译： 在用于再现和存储频率分离的视频信号的系统中的穿梭模式操作期间，读取头与对应于图像的不同场的多个轨道相交，而不是跟随完整的轨道。 因此，任何一个字段的完整信息都无法恢复。 为了在穿梭模式期间提供图像，系统在存储该信息的部分读取与其相交的轨道的直流亮度信息。 由于直流亮度信息的信息内容相对较高，所以只能从该信息形成可识别的图像。 直流亮度信息被存储在轨道的中心，其他分量按照磁带边缘的频率递增的顺序排列。 对生成高质量图像最重要的数据被存储在不太可能劣化的地方。
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公开(公告)号：US5329360A
公开(公告)日：1994-07-12
申请号：US9669
申请日：1993-01-27
CPC分类号： H04N9/8042 , H04N9/8047 , H04N9/87 , H04N5/783
摘要： Image data multiplexing apparatus for multiplexing digital luminance and chrominance data of a representation of an image into multiplexed data blocks of a predetermined length, along with a corresponding demultiplexing apparatus, is described. Each of the multiplexed data blocks comprises a luminance data section comprising luminance data from a portion of the representation, a chrominance data section comprising chrominance data from the portion of the representation, a portion address indicative of the position in the representation of the portion, and a block offset pointer indicative of the position in the multiplexed data block of the boundary between the luminance data section and the chrominance data section.
摘要翻译： 描述了用于将图像的表示的数字亮度和色度数据与预定长度的多路复用数据块一起并入相应的解复用装置的图像数据多路复用装置。 每个复用数据块包括亮度数据部分，其包括来自该部分表示的亮度数据，色度数据部分包括来自该部分表示的色度数据，指示该部分的表示中的位置的部分地址，以及 指示亮度数据部分和色度数据部分之间的边界的复用数据块中的位置的块偏移指针。
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公开(公告)号：US5070403A
公开(公告)日：1991-12-03
申请号：US506809
申请日：1990-04-10
申请人： James H. Wilkinson
发明人： James H. Wilkinson
CPC分类号： H04N7/014 , H04N19/523 , H04N7/122
摘要： In an apparatus and method for deriving gradient vectors for use in the spatial interpolation of an input digital video signal; the scan lines of a field of the input digital video signal are high pass filtered so as to provide a high pass filtered video signal which is supplied to a plurality of parallel processing channels in which the high pass filtered video signal is differently low pass filtered so as to form respective low pass filtered video signals, the correlation for a range of pixel offsets is determined pixel-by-pixel for the video signal outputs from the channels so as to form a plurality of gradient vectors for each pixel of the input digital video signal, and the gradient vector is selected, for each pixel of the input digital video signal, which corresponds to the maximum correlation value therefor. The apparatus for deriving gradient vectors is also applicable to a television standards converter.
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