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1. 发明授权

US4550337A Digital video transmission system 失效
标题翻译：数字视频传输系统
公开(公告)号：US4550337A
公开(公告)日：1985-10-29
申请号：US482821
申请日：1983-04-07
申请人： Robert A. Dischert , Warren H. Moles , Roland N. Rhodes , James M. Walter
发明人： Robert A. Dischert , Warren H. Moles , Roland N. Rhodes , James M. Walter
IPC分类号： H04N7/26 , G06T9/00 , H04B14/04 , H04N7/56 , H04N7/13
CPC分类号： H04N7/56 , G06T9/005
摘要： A video signal is serially enclosed for transmission in PCM form during synchronizing level intervals and encoded in a run length limited NRZ form during non-synchronizing level intervals, each PCM word being selected from minimum and maximum disallowed states of the NRZ code. In a decoder, a first detector responds only to the presence of the PCM code for synchronizing a second detector with response to both the NRZ and PCM coded portions of the encoded video signal to provide a decoded video output signal whereby the PCM portion of the signal conveys both decoder timing information and information as to a specific level of the video signal.
摘要翻译：视频信号被串行封闭，以在同步电平间隔期间以PCM形式传输，并且在非同步电平间隔期间以游程长度限制NRZ形式编码，每个PCM字从NRZ码的最小和最大不允许状态中选择。在解码器中，第一检测器仅响应PCM代码的存在，以使第二检测器与编码视频信号的NRZ和PCM编码部分的响应同步，以提供解码的视频输出信号，由此信号的PCM部分传送解码器定时信息和关于视频信号的特定级别的信息。

2. 发明授权

US4672443A Compatible wide screen television system with image compressor/expander 失效
标题翻译：兼容宽屏电视系统，带图像压缩器/扩展器
公开(公告)号：US4672443A
公开(公告)日：1987-06-09
申请号：US771420
申请日：1985-08-30
申请人： Robert A. Dischert , Warren H. Moles , David L. Jose , James M. Walter
发明人： Robert A. Dischert , Warren H. Moles , David L. Jose , James M. Walter
IPC分类号： H04N7/00 , H04N5/44 , H04N11/00 , H04N11/24 , H04N7/01
CPC分类号： H04N7/0122 , H04N11/006
摘要： A wide aspect ratio television system includes memories for storing and recovering a video input signal in response to read and write clock pulses, respectively. Write clock pulses are deleted to compress edge regions of a wide aspect ratio input signal and read clock pulses are deleted to restore the signal to its original aspect ratio. The pattern of delected pulses is altered on a line-by-line basis to reduce visible artifacts of signal decimation. Dual mode receivers include provisions for controlling edge blanking, interpolation and the pattern of clock pulses deleted as a function of received signals. Wide and standard aspect ratio images are displayed without altering the width of the display raster.
摘要翻译：大宽高比电视系统包括分别响应于读和写时钟脉冲存储和恢复视频输入信号的存储器。写入时钟脉冲被删除以压缩宽宽比输入信号的边缘区域，并且删除读取时钟脉冲以将信号恢复到其原始宽高比。逐行扫描的脉冲的图案被改变以减少信号抽取的可见伪像。双模式接收器包括用于控制边沿消隐，内插和作为接收信号的函数被删除的时钟脉冲的模式的规定。在不改变显示栅格宽度的情况下显示宽和标准宽高比图像。

3. 发明授权

US4110785A Clock generator for video signal processing 失效
标题翻译：时钟发生器用于视频信号处理
公开(公告)号：US4110785A
公开(公告)日：1978-08-29
申请号：US793412
申请日：1977-05-03
申请人： Robert A. Dischert , James M. Walter
发明人： Robert A. Dischert , James M. Walter
IPC分类号： H04N5/956 , G11B20/02 , H04N9/44 , H04N9/896 , H04N5/795 , H04N9/46
CPC分类号： H04N9/896
摘要： A clock generator is provided which demodulates the burst subcarrier portion of a video signal containing time base errors. The demodulation is with respect to an external subcarrier reference signal so that the demodulator output represents an accurate vector summation of the instantaneous phase and amplitude difference of the incoming video signal relative to the external reference. The demodulator output is utilized to remodulate the external reference signal to provide a rephased subcarrier reference signal which is frequency multiplied and waveshaped to produce a clock signal which is synchronized to the incoming video signal.
摘要翻译：提供时钟发生器，其解调包含时基误差的视频信号的突发子载波部分。解调是关于外部子载波参考信号，使得解调器输出表示输入视频信号相对于外部参考的瞬时相位和幅度差的精确矢量求和。解调器输出用于重新调制外部参考信号，以提供频率相乘和波形形成的重新设定的副载波参考信号，以产生与输入视频信号同步的时钟信号。

4. 发明授权

US4470125A Multiplier for digital video signals using a cascade of signal-selectable memories 失效
标题翻译：使用级联的信号可选存储器的数字视频信号的乘数
公开(公告)号：US4470125A
公开(公告)日：1984-09-04
申请号：US319460
申请日：1981-11-09
申请人： Robert A. Dischert , James M. Walter
发明人： Robert A. Dischert , James M. Walter
IPC分类号： G06F1/035 , G06F7/52 , H03G3/00
CPC分类号： G06F7/5235 , G06F1/0356 , H03G3/002 , G06F2101/10
摘要： A high speed multiplier, such as for video signals features cascaded ROMs. Each ROM is divided into pages, and each page contains different multiplying coefficients. Different significant bits of a control signal are applied to each ROM to select a page for processing the video signal.
摘要翻译：高速倍增器，如视频信号，具有级联的ROM。每个ROM分为页，每页包含不同的乘法系数。控制信号的不同有效位被施加到每个ROM以选择用于处理视频信号的页面。

5. 发明授权

US4322747A Rapid synchronization of information on separate recorded mediums 失效
标题翻译：在单独的记录介质上快速同步信息
公开(公告)号：US4322747A
公开(公告)日：1982-03-30
申请号：US173629
申请日：1980-07-30
申请人： Robert A. Dischert , James M. Walter
发明人： Robert A. Dischert , James M. Walter
IPC分类号： G11B15/48 , G11B27/10 , H04N5/76
CPC分类号： G11B15/48 , G11B27/10 , G11B2220/90
摘要： Separate durations of acceleration and constant velocity are utilized to attain phase locking between a recorded sync signal and an external reference sync signal while accelerating a recorded medium from an intermediate velocity to its operational velocity, with each duration being proportional to the intermediate velocity.
摘要翻译：利用加速度和恒定速度的独立持续时间来在记录的同步信号和外部参考同步信号之间实现相位锁定，同时将记录的介质从中间速度加速到其操作速度，每个持续时间与中间速度成比例。

6. 发明授权

US4654714A Pixel addressing system 失效
标题翻译：像素寻址系统
公开(公告)号：US4654714A
公开(公告)日：1987-03-31
申请号：US792894
申请日：1985-10-30
申请人： Robert N. Hurst, Jr. , James M. Walter
发明人： Robert N. Hurst, Jr. , James M. Walter
IPC分类号： H04N5/367 , H04N5/3725 , H04N5/378 , H04N5/21
CPC分类号： H04N5/367
摘要： Apparatus for identifying a plurality of given elements read out of an array of elements arranged in lines and columns is described. The apparatus includes a line-rate counter for developing addressing signals and a memory for providing data signals corresponding to the column location of the given elements in response to the addressing signals. A programmable counter counts columns in response to the data signals read out of the memory for providing a signal which corresponds in time to read out of respective ones of the plurality of given elements.
摘要翻译：描述用于识别从以行和列排列的元件阵列读出的多个给定元件的装置。该装置包括用于开发寻址信号的线速计数器和用于响应于寻址信号提供对应于给定元件的列位置的数据信号的存储器。可编程计数器响应于从存储器读出的数据信号计数列，以提供在时间上对应于从多个给定元素中的相应数据读出的信号。

7. 发明授权

US4339770A Synchronizing system with chroma parity detection 失效
标题翻译：同步系统与色度奇偶校验检测
公开(公告)号：US4339770A
公开(公告)日：1982-07-13
申请号：US200905
申请日：1980-10-27
申请人： Robert C. Dennison , James M. Walter
发明人： Robert C. Dennison , James M. Walter
IPC分类号： H04N9/44 , H04N9/896 , H04N9/46
CPC分类号： H04N9/44 , H04N9/896
摘要： In a television time-base corrector or synchronizer using a coherent memory, the input signal is written into predetermined memory addresses in order of their arrival after sampling begins for each horizontal line. The sampling occurs at a rate established by the chroma subcarrier. Sampling begins at a zero crossing of the subcarrier following a fixed interval after the horizontal synchronizing signal. Since the burst does not occur at a predetermined time after the horizontal synchronizing signal, the phase of the burst at a fixed interval after the horizontal synchronizing signal may vary when the source of the television signal changes, and this may result in horizontal displacement of the video on playback. In order to reduce the magnitude of the displacement, the zero-crossing detector operates on either positive or negative-going zero crossings. A phase ambiguity is thereby introduced which may result in color reversal. The ambiguity is resolved with a phase sensor coupled to the zero-crossing detector and a chroma inverter responsive to the phase sensor for inverting the delayed chroma relative to the reference subcarrier.
摘要翻译：在使用相干存储器的电视时基校正器或同步器中，根据每个水平线的采样开始之后的顺序，将输入信号写入预定的存储器地址。采样以色度副载波建立的速率进行。采样在水平同步信号之后的固定间隔之后的副载波的零交叉处开始。由于在水平同步信号之后的预定时间没有发生脉冲串，所以当电视信号的源变化时，在水平同步信号之后的固定间隔处的脉冲串的相位可以变化，并且这可能导致视频播放。为了减小位移的大小，过零检测器以正向或负向过零的方式运行。由此引入了可能导致颜色反转的相位模糊。通过耦合到过零检测器的相位传感器和响应于相位传感器的色度反相器来解析模糊度，以相对于参考子载波反相延迟的色度。

8. 发明授权

US4879606A EDTV recording apparatus 失效
标题翻译： EDTV录音设备
公开(公告)号：US4879606A
公开(公告)日：1989-11-07
申请号：US205146
申请日：1988-06-06
申请人： James M. Walter , Krishnamurthy Jonnalagadda , Robert E. Flory
发明人： James M. Walter , Krishnamurthy Jonnalagadda , Robert E. Flory
IPC分类号： H04N9/80 , H04N9/797 , H04N9/82 , H04N11/24
CPC分类号： H04N11/008 , H04N9/7976 , H04N9/82
摘要： Extended definition television (EDTV) signals including a compatible composite wideband signal and a separate helper or extended definition signal are combined, for example, for recording purposes, using frequency multiplexing techniques. The helper signal is applied to a modulator, which produces a suppressed carrier modulated signal, to frequency shift the helper signal to a spectral band above the frequency band occupied by the compatible composite wideband signal. The frequency shifted and wideband signal are then added to form the combined signal.
摘要翻译：包括兼容的复合宽带信号和单独的辅助或扩展定义信号的扩展清晰度电视（EDTV）信号例如用于记录目的使用频率复用技术进行组合。辅助信号被施加到调制器，其产生抑制的载波调制信号，以将辅助信号频率移位到由兼容复合宽带信号占据的频带之上的频带。然后将频移和宽带信号相加以形成组合信号。

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