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公开(公告)号：EP0565143A3
公开(公告)日：1994-04-20
申请号：EP93200011.0
申请日：1993-01-05
CPC分类号： G11B19/00 , G05B2219/23053 , G05B2219/23379 , G05B2219/35459 , G05B2219/37023 , G05B2219/37396 , G11B15/026 , G11B15/103 , G11B15/1875 , G11B27/024 , G11B27/028 , G11B2220/90 , H01H2003/008
摘要： An apparatus including a rotary knob (14) coupled to the shaft of the rotor of a stepper motor having first and second stator windings, in quadrature, each winding having a grounded center tap to provide first and second winding portions for each winding. One pair of first winding portions is used for providing pulse inputs to a microprocessor (20) on rotation of the knob, in either direction, via a pulse control system (22), the microprocessor providing command signals to a braking control system (24). On command of the processor, a force or torque is applied to the rotor, by means of energization of the other pair of winding portions, the force being in opposition to the direction of rotation of the knob. Under control of the microprocessor, the force may be intermittently applied to simulate a mechanical detent arrangement, or be a constant force for braking.
摘要翻译： 一种装置，包括耦合到步进电机的转子的轴的旋钮（14），该旋钮具有正交的第一和第二定子绕组，每个绕组具有接地的中心抽头以为每个绕组提供第一和第二绕组部分。 一对第一绕组部分用于通过脉冲控制系统（22）在旋钮旋转的任何方向上向微处理器（20）提供脉冲输入，微处理器向制动控制系统（24）提供命令信号， 。 根据处理器的命令，通过对另一对卷绕部分的通电，力或转矩被施加到转子，该力与旋钮的旋转方向相反。 在微处理器的控制下，力可以间歇地施加以模拟机械锁销装置，或者是用于制动的恒定力。
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公开(公告)号：EP0368511A3
公开(公告)日：1994-02-23
申请号：EP89311028.8
申请日：1989-10-25
发明人： Lemoine, Maurice G.
IPC分类号： G11B27/30 , G11B27/032 , G11B15/18 , G11B15/467 , G11B27/036 , G11B27/32
CPC分类号： G11B15/4676 , G11B27/032 , G11B27/036 , G11B27/10 , G11B27/3027 , G11B27/32 , G11B2220/216 , G11B2220/90
摘要： In a digital tape recording system for video and sound signals, in which information in each track is stored in plural sectors having synchronizing preambles that aid in synchronizing the playback of the information, special preambles containing a frequency component that is lower than normal are used for the first sector of the first track in each video frame or field. The normal and special preambles are produced by passing the binary code "...01010101..." (in the case of all but the first sector of each frame or field) or "...011011011011..." (in the case of the first sector) through a Miller Channel Code encoder to produce, in the first case, a synchronizing square wave fluctuating at one-fourth the bit presentation frequency, and in the second case, a synchronizing quare wave fluctuating at one-sixth the bit presentation frequency. Special resonant circuits associated with the playback circuitry detect the special lower frequency component and signal the precise start of a new frame or field. This signal is used for capstan synchronization, head positioning during playback, and head positioning during editing when the record, heads are used as playback heads so that they may be properly positioned to overwrite individual sectors on a track without overwriting other sectors.
摘要翻译： 在用于视频和声音信号的数字磁带记录系统中，其中每个磁道中的信息被存储在具有同步前导码的多个扇区中，这些同步前导码有助于同步信息的重放，包含低于正常频率分量的特定前导码被用于 每个视频帧或场中第一个轨道的第一个扇区。 正常和特殊的前导码是通过传递二进制码“... 01010101 ...”（除了每帧或场的第一个扇区以外）或“... 011011011011 ...”（在 第一个扇区的情况）通过米勒通道码编码器在第一种情况下产生一个同步矩形波，其波动为位显示频率的四分之一，而在第二种情况下，产生一个同步波， 位呈现频率。 与回放电路相关联的特殊谐振电路检测特定的较低频率分量并且发信号通知新帧或场的精确开始。 该信号用于主导轴同步，重放期间的磁头定位和编辑过程中的磁头定位，当记录，磁头用作重放磁头时，它们可以正确定位以覆盖磁道上的单个扇区而不覆盖其他扇区。
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公开(公告)号：EP0348107B1
公开(公告)日：1993-11-10
申请号：EP89306089.7
申请日：1989-06-15
发明人： Clark, Harold V.
CPC分类号： H02P3/12
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44.发明公开Interactive rotary controller system with tactile feedback 失效Interaktives，drehbares Regelsystem mit taktilerRückführung。
公开(公告)号：EP0565143A2
公开(公告)日：1993-10-13
申请号：EP93200011.0
申请日：1993-01-05
CPC分类号： G11B19/00 , G05B2219/23053 , G05B2219/23379 , G05B2219/35459 , G05B2219/37023 , G05B2219/37396 , G11B15/026 , G11B15/103 , G11B15/1875 , G11B27/024 , G11B27/028 , G11B2220/90 , H01H2003/008
摘要： An apparatus including a rotary knob (14) coupled to the shaft of the rotor of a stepper motor having first and second stator windings, in quadrature, each winding having a grounded center tap to provide first and second winding portions for each winding. One pair of first winding portions is used for providing pulse inputs to a microprocessor (20) on rotation of the knob, in either direction, via a pulse control system (22), the microprocessor providing command signals to a braking control system (24). On command of the processor, a force or torque is applied to the rotor, by means of energization of the other pair of winding portions, the force being in opposition to the direction of rotation of the knob. Under control of the microprocessor, the force may be intermittently applied to simulate a mechanical detent arrangement, or be a constant force for braking.
摘要翻译： 一种装置，包括旋转旋钮（14），其连接到具有第一和第二定子绕组的步进电机的转子的轴上，正交，每个绕组具有接地的中心抽头，以为每个绕组提供第一和第二绕组部分。 一对第一绕组部分用于经由脉冲控制系统（22）在任一方向上旋转旋钮向微处理器（20）提供脉冲输入，微处理器向制动控制系统（24）提供命令信号， 。 根据处理器的指令，力或扭矩通过另一对绕组部分的通电施加到转子上，该力与该旋钮的旋转方向相反。 在微处理器的控制下，可以间歇地施加力以模拟机械制动装置，或者是用于制动的恒定力。
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45.发明公开
公开(公告)号：EP0564283A2
公开(公告)日：1993-10-06
申请号：EP93302570.2
申请日：1993-04-01
发明人： Brush, Richard K.
CPC分类号： G11B20/1833 , G11B20/1423 , H03M5/14 , H03M13/31
摘要： A method and apparatus for the generation of a signal flag in response to illegal channel code patterns from an information channel. The signal flag may typically be used as an erasure flag by a subsequent error correction decoder. This erasure flag is indicative of a data error position which can then be fed into a utilization circuit such as an error correction logic for performance improvement. In particular, a Miller-squared channel code format decoder in accordance with the present invention can provide error position information, thereby enhancing error correction power, such as that of a Reed-Solomon error correction code.
摘要翻译： 一种用于响应于来自信息信道的非法信道码模式产生信号标志的方法和装置。 信号标志通常可以由随后的纠错解码器用作擦除标志。 该擦除标志指示数据错误位置，然后可以将其馈送到诸如用于性能改进的纠错逻辑的利用电路中。 特别地，根据本发明的米勒平方信道码格式解码器可以提供错误位置信息，从而增强诸如里德 - 所罗门纠错码的纠错能力。
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46.发明公开Method and apparatus for determining a quantizing factor for processes involving multiple compression/decompression of data 失效用于确定涉及数据压缩/解压缩的过程的量化因子的方法和装置
公开(公告)号：EP0509576A3
公开(公告)日：1993-06-02
申请号：EP92200930.3
申请日：1992-04-01
发明人： Watney, John P.
CPC分类号： H04N5/9264 , H04N19/124 , H04N19/126 , H04N19/14 , H04N19/146 , H04N19/149 , H04N19/154 , H04N19/176 , H04N19/192 , H04N19/40 , H04N19/46 , H04N19/60 , H04N19/90
摘要： The invention provides techniques for changing the quantization used in multiple generations of data quantization such that the errors incurred in subsequent generations are substantially the same as the error incurred in the first generations even though the complexity of the data has been changed. In a preferred embodiment, quantizing factors are selected from a preselected finite non-degenerative set of quantizing factors provided in the form of arrays of a periodic series of individual quantizer values, wherein a special numerical relationship is maintained between corresponding quantizer values in successive arrays. A different quantizing factor may be selected for each generation of compression/decompression as required by changing data complexity as when performing a layering process during the generations. In another embodiment, an over-quantizing factor is chosen large enough to compress the data to a greater extent than that required in the first generation, such that sufficient compression still is provided in subsequent generations even though the same quantizing factor is used while the complexity of the data is being changed. If for some reason the complexity of the data changes faster than expected, it is necessary to change the quantizing factor to fit the data into the allotted space. To moderate the associated increase in noise, the invention technique incudes a dither rounding process wherein a psuedo random number sequence in the range of 0...1.0 is selectively added as determined by a threshold. The invention also includes estimating a quantizing factor applied in a previous generation of image recording if this information is not available explicitly, by distinguishing the peaks and/or valleys of histogram. The amplitudes of the peaks and/or valleys represent the number of counts of the respective values of frequency coefficients to be quantized.
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47.发明公开Image transformation on a folded curved surface 失效Bildtransformationübereine gefaltetegekrümmteOberfläche。
公开(公告)号：EP0526918A2
公开(公告)日：1993-02-10
申请号：EP92200827.1
申请日：1992-03-23
发明人： Brown, David E.
IPC分类号： G06F15/62
CPC分类号： G06T3/005
摘要： A special effects system has an image processing system (50) to receive an input image signal representing an image to be folded and to provide a folded output image signal. A key processing system (80) receives an input key signal to define a portion of the image selected for viewing. It operates in parallel with the image processing system to generate an output key signal which has undergone the same selected spatial transformation relative to the input key signal as did the image. A spatial transformation system (26,800,900) operates on the input image signal so as to be able to spatially transform the input image signal on a folded curved surface. The spatial transformation system can be arranged as a separable, two pass transformation process and functions either with h-pass first operations, followed by v-pass operations or vice versa.
摘要翻译： 特殊效果系统具有图像处理系统（50），用于接收表示要折叠的图像的输入图像信号并提供折叠的输出图像信号。 密钥处理系统（80）接收输入密钥信号以定义所选择的用于观看的图像的一部分。 它与图像处理系统并行操作，以产生输出键信号，该输出键信号相对于输入键信号与图像一样已经进行了相同的选择的空间变换。 空间变换系统（26,800,900）对输入图像信号进行操作，以便能够在折叠的曲面上空间地变换输入图像信号。 空间变换系统可以被设置为可分离的双通道变换过程，并且具有通过第一操作的功能，接着是V-pass操作，反之亦然。
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公开(公告)号：EP0503762A3
公开(公告)日：1993-01-13
申请号：EP92301019.3
申请日：1992-02-06
CPC分类号： G11B5/588
摘要： A flexural pantographic mount for use in a helical scan tape transport includes a fixed body (810) and a moveable transducing head assembly (812). First and second parallel spaced apart elongated flexible leaves (815,835) connect the fixed body to the moveable assembly. Edge extensions (825,845) integral with each leaf provide stiffening which does not substantially alter the primary mode stiffness of the leaves but increases the frequencies of the higher order natural mode vibrations.
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公开(公告)号：EP0469647A3
公开(公告)日：1992-12-09
申请号：EP91201156.6
申请日：1991-05-14
发明人： Newby, Paul S. , Bower, Dan E.
IPC分类号： H04L25/30
CPC分类号： H04L25/063
摘要： The decision feedback decoder of the invention receives sequentially sampled values of a signal waveform corresponding to data bits transmitted by a channel. A magnitude comparator (16) compares the sampled values to a threshold and based on each comparison it provides subsequent decisions determining the values of the corresponding data bits. A predetermined number of previous decisions is stored and applied to first and second threshold adjustment circuits (26,28). Each circuit adjusts the threshold depending on the respective values of the previous decisions, while the first circuit provides the adjustment based on an assumption that the next decision to be made will have a first signal value and the second circuit provides the adjustment based on an assumption that the next decision will have a second signal value. When that next decision becomes available, it is utilized to select the correct adjusted threshold value for the next comparison by the magnitude comparator.
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50.发明公开Method and apparatus for shuffling and deshuffling data 失效Vorrichtung und Verfahren zur Datenmischung und -entmischung。
公开(公告)号：EP0499303A2
公开(公告)日：1992-08-19
申请号：EP92200203.5
申请日：1992-01-24
IPC分类号： H04N7/133
CPC分类号： H04N5/9201 , H04N5/907 , H04N5/9264 , H04N19/124 , H04N19/14 , H04N19/146 , H04N19/149 , H04N19/15 , H04N19/176 , H04N19/60 , H04N19/85 , H04N19/88 , H04N19/98
摘要： To equalize the information content of image data prior to compression, a shuffling and deshuffling technique divides the video image into a multitude of image blocks, and selects a predetermined number of the image blocks from different spatial locations in the image, to form a succession of data sets representative of the video image information. The selection of the image representing blocks is such that the information content in each data set is similar to the information content in each other data set and similar to the average information content of the entire video image.
摘要翻译： 为了在压缩之前均衡图像数据的信息内容，混洗和去混洗技术将视频图像分割成多个图像块，并且从图像中的不同空间位置中选择预定数量的图像块，以形成一系列 表示视频图像信息的数据集。 图像表示块的选择使得每个数据集中的信息内容与彼此数据集中的信息内容相似，并且与整个视频图像的平均信息内容相似。
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