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1.发明授权
公开(公告)号：US5499145A
公开(公告)日：1996-03-12
申请号：US151790
申请日：1993-11-15
IPC分类号： H04N5/7826 , G11B15/07 , G11B15/087 , G11B20/02 , G11B33/10 , H04N7/015 , H04N9/79 , H04N5/78
CPC分类号： H04N9/7921 , G11B15/07 , G11B15/087 , G11B33/10
摘要： A magnetic recording apparatus of the rotary head helical scan type which can selectively record input information signals of a plurality of signal formats includes an input signal kind discriminating circuit, a controller for generating control output signals to set each section of the magnetic recording apparatus into a predetermined mode on the basis of a recording mode command, a recording signal processing circuit which is respectively switched to a predetermined mode in accordance with an output signal of the controller, and a servo control circuit, wherein there is an effect such that one magnetic recording apparatus can automatically record the input signals of a plurality of formats such as an NTSC signal, an HD signal, and the like in the optimum mode by a simple and easy to use method.
摘要翻译： 可以选择性地记录多种信号格式的输入信息信号的旋转磁头螺旋扫描型的磁记录装置包括输入信号种类识别电路，用于产生控制输出信号的控制器，用于将磁记录装置的每个部分设置为 基于记录模式命令的预定模式，根据控制器的输出信号分别切换到预定模式的记录信号处理电路和伺服控制电路，其中存在一个磁记录 装置可以通过简单易用的方法在最佳模式下自动记录诸如NTSC信号，HD信号等多种格式的输入信号。
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2.发明授权Audio signal recording and playback apparatus of magnetic recording and playback apparatus 失效磁记录和重放装置的音频信号记录和重放装置
公开(公告)号：US5323273A
公开(公告)日：1994-06-21
申请号：US738470
申请日：1991-07-31
IPC分类号： G11B5/027 , G11B5/02 , G11B27/032 , G11B27/036 , H04N5/775 , H04N5/91 , H04N5/92 , H04N5/928
CPC分类号： G11B27/036 , H04N5/775 , H04N5/9202 , H04N5/928 , G11B2220/90 , G11B27/032
摘要： An audio signal recording and playback apparatus of a magnetic recording and playback apparatus operates to record and play back multiple audio signals together with a video signal in first and second recording areas formed in correspondence to audio signals of first and second sets each consisting of two channels. Among input stereo audio signals in four channels at most, two-channel signals corresponding to left and right side information are recorded as main audio signals in the first recording area and remaining two-channel signals are recorded selectively as ancillary audio signals in the second record area.
摘要翻译： 磁记录和重放装置的音频信号记录和重放装置用于在第一和第二记录区域中记录和再现多个音频信号以及视频信号，所述第一和第二记录区域对应于由两个通道组成的第一和第二组的音频信号形成 。 在最多四个通道的输入立体声音频信号中，对应于左侧和右侧信息的双声道信号作为主音频信号被记录在第一记录区域中，并且剩余的双声道信号被选择性地记录在第二记录中作为辅助音频信号 区。
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3.发明授权Audio signal recording/reproducing apparatus for recording and reproducing high-definition television system audio signal of a plurality of channels 失效用于记录和再现多个频道的高清晰度电视系统音频信号的音频信号记录/再现装置
公开(公告)号：US5414523A
公开(公告)日：1995-05-09
申请号：US901134
申请日：1992-06-19
申请人： Nobuo Azuma , Takashi Furuhata , Hiroaki Takahashi
发明人： Nobuo Azuma , Takashi Furuhata , Hiroaki Takahashi
CPC分类号： H04N9/802 , G11B20/00992 , G11B20/10527 , G11B27/3063 , H04N5/923 , H04H20/89 , H04H60/27
摘要： An audio signal recording and/or reproducing apparatus of a magnetic recording/reproducing apparatus for recording and reproducing audio signals and a video signal. An audio control signal converting circuit is responsive to a command for selecting an arbitrary one of audio signal modes of the 3-1 system, the 2-2 system and so on to convert an input audio control signal corresponding to the input audio signal mode into a recording audio control signal corresponding to the selected audio signal mode. An audio signal processing circuit converts the input audio signals into audio signals of the selected audio signal mode in accordance with the recording audio control signal. An identification signal generating circuit generates an identification signal including the recording audio control signal. The identification signal and the converted audio signals are recorded on the magnetic tape. Upon reproduction, the audio signals and the recording audio control signal indicating the mode of the audio signals are reproduced from the magnetic tape.
摘要翻译： 用于记录和再现音频信号和视频信号的磁记录/再现装置的音频信号记录和/或再现装置。 音频控制信号转换电路响应于用于选择3-1系统，2-2系统等的音频信号模式中的任意一个的命令，将对应于输入音频信号模式的输入音频控制信号转换为 对应于所选择的音频信号模式的记录音频控制信号。 音频信号处理电路根据记录音频控制信号将输入音频信号转换成所选音频信号模式的音频信号。 识别信号发生电路产生包括记录音频控制信号的识别信号。 识别信号和经转换的音频信号被记录在磁带上。 在再现时，从磁带再现指示音频信号的模式的音频信号和记录音频控制信号。
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4.发明授权Video signal recording and/or reproducing apparatus for recording and/or reproducing a signal obtained by converting a number of scanning lines of a video signal 失效用于记录和/或再现通过转换视频信号的扫描行数而获得的信号的视频信号记录和/或再现装置
公开(公告)号：US6104865A
公开(公告)日：2000-08-15
申请号：US881753
申请日：1992-05-06
CPC分类号： H04N9/7904 , H04N9/7925
摘要： A video signal recording and/or reproducing apparatus which is capable of recording and/or reproducing both high definition and standard television signals is disclosed. Accordingly, video signals of two systems such as the high definition and standard television signals can be recorded and/or reproduced by a single apparatus. The standard television signal is reproduced as a video signal having a high picture quality in a format similar to that of the high definition television signal. Even if the video signal to be recorded is the standard television signal, a reproduced picture having a higher picture quality than that of the standard television signal and having no distortion due to a difference in aspect ratios between the high definition and standard television signals can be provided.
摘要翻译： 公开了能够记录和/或再现高分辨率和标准电视信号的视频信号记录和/或再现装置。 因此，可以通过单个装置来记录和/或再现诸如高分辨率和标准电视信号的两个系统的视频信号。 标准电视信号被再现为具有与高分辨率电视信号类似的格式的具有高图像质量的视频信号。 即使要记录的视频信号是标准电视信号，具有比标准电视信号更高的图像质量并且由于高分辨率和标准电视信号之间的纵横比的差异而没有失真的再现图像可以是 提供。
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5.发明授权Video signal recording and reproducing apparatus and method suitable for recording video signals including horizontal scanning line signals 失效视频信号记录和再现装置和方法，适用于记录包括水平扫描线信号的视频信号
公开(公告)号：US4972335A
公开(公告)日：1990-11-20
申请号：US298898
申请日：1989-01-19
IPC分类号： H04N5/92 , G11B20/02 , H04N5/7826 , H04N9/81
CPC分类号： H04N5/78266 , H04N9/81
摘要： Video signals within one vertical scanning period are divided into a plurality of line block signals. These line block signals are shifted on time base, and a redundant interval (.tau..sub.H) is formed between two line block signals. Further, a plurality of segment signals, each of which includes a plurality of line block signals, are formed. A redundant interval (.tau..sub.S) is formed between two segment signals. The interval of the vertical blanking signal is shortened. Recorded video signals comprise the redundant intervals (.tau..sub.S) and the segment signals including the redundant intervals (.tau..sub.H) and the line block signals. A horizontal synchronizing signal of negative polarity, for example, is added in the redundant interval (.tau..sub.H). Magnetic heads are switched in the redundant interval (.tau..sub.S).
摘要翻译： 在一个垂直扫描周期内的视频信号被分成多个行块信号。 这些线路块信号在时基上移位，并且在两个线路块信号之间形成冗余间隔（τH）。 此外，形成多个段信号，每个段信号包括多个行块信号。 在两个段信号之间形成冗余间隔（τS）。 垂直消隐信号的间隔缩短。 记录的视频信号包括冗余间隔（τS）和包括冗余间隔（tau H）和行块信号的段信号。 例如，在冗余间隔（τH）中添加负极性的水平同步信号。 磁头在冗余间隔（tau S）中切换。
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公开(公告)号：US4825299A
公开(公告)日：1989-04-25
申请号：US91452
申请日：1987-08-31
摘要： A magnetic video recording/reproducing apparatus of high resolution, which excludes a phase difference introduced to a signal due to difference in characteristics between a low frequency conversion system and a high frequency conversion system by inserting an additonal signal to both systems. The additional signal is recorded together with the video signal and a phase difference is detected. The detected phase difference is utilized for regulating the phase difference in the respective frequency systems.
摘要翻译： 一种高分辨率的磁视频记录/再现装置，其通过向两个系统插入附加信号，排除由于低频转换系统和高频转换系统之间的特性差异而引入信号的相位差。 附加信号与视频信号一起被记录，并且检测到相位差。 所检测的相位差用于调节相应频率系统中的相位差。
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7.发明授权Video signal processing method and apparatus with timebase disturbance correction and dropout compensation 失效视频信号处理方法和具有时基干扰校正和丢失补偿的装置
公开(公告)号：US5239421A
公开(公告)日：1993-08-24
申请号：US688284
申请日：1991-04-22
摘要： A method of reproducing video signals from a magnetic recording medium like a magnetic tape for a VTR to obtain high-quality video pictures even when dropouts occur in the medium, which includes the steps of separating synchronizing information from the video signals reproduced from the magnetic recording medium, detecting a dropout duration from the reproduced video signals, generating complete synchronizing information during a whole period of writing the signals in image information memories by compensating lost synchronizing information during the dropout, generating write address signals on the basis of the generated synchronizing information, writing reproduced video signals the memories on the basis of the generated write address signals while no dropout occurs, and leaving unchanged previously written video signals while a dropout occurs. According to an apparatus implementing the above method, reproduced pictures of high quality are obtained without jitters and skews due to dropouts.
摘要翻译： 一种从VTR用磁带等磁记录介质再现视频信号的方法，即使在介质中出现缺陷时也能获得高质量的视频图像，其中包括从与磁记录重现的视频信号分离同步信息的步骤 介质，从再现的视频信号中检测出一个压差持续时间，在通过在丢失期间补偿丢失的同步信息的整个写入信号在图像信息存储器中的整个周期期间产生完整的同步信息，根据生成的同步信息产生写入地址信号， 在不产生压降的情况下，根据所生成的写入地址信号对再现的视频信号进行写入，并且在出现发生缺陷的同时留下未改变的先前写入的视频信号。 根据实现上述方法的设备，获得高质量的再现图像，而不会由于丢失而产生抖动和偏差。
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公开(公告)号：US4967161A
公开(公告)日：1990-10-30
申请号：US393958
申请日：1989-08-15
摘要： A signal processing method or apparatus in which an input signal is converted to a signal of a predetermined frequency characteristic and the resulting signal is reconverted to a signal of the original frequency characteristic, comprising: a first signal processing section for processing the input signal and having the first transfer function exp(-msT)/(1+K.multidot.cos(.omega.T) or a function approximating to the former function; a second signal processing section cascaded with the first signal processing section for processing the input signal and having a second transfer function of (1+K.multidot.cos(.omega.T).multidot.exp(-sT)), the first signal processing section having a linear phase characteristic and including an impedance circuit or an admittance circuit, each circuit including a ladder network of a plurality of inductance elements and capacitance elements.
摘要翻译： 一种信号处理方法或装置，其中输入信号被转换成预定频率特性的信号，并且所得信号被重新转换为原始频率特性的信号，包括：第一信号处理部分，用于处理输入信号并具有 第一传递函数exp（-msT）/（1 + Kxcos（ω-T））或接近前一函数的函数;与第一信号处理部分级联的第二信号处理部分，用于处理输入信号并具有第二传递函数 （1 + Kxcos（ω-T）×exp（-ST）），第一信号处理部分具有线性相位特性并包括阻抗电路或导纳电路，每个电路包括多个电感元件的梯形网络和电容 元素。
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9.发明授权
公开(公告)号：US5280396A
公开(公告)日：1994-01-18
申请号：US770450
申请日：1991-10-03
摘要： An apparatus for correcting a time base of a video signal includes a first memory having a capacity of one line of a video signal and a second memory having a capacity of N lines of the video signal connected to the first memory. A video signal is written in the first memory according to a first control signal generated based on synchronizing information in the video signal and first clock pulses synchronized with the synchronizing information, the video signal written in the first memory is read from the first memory and written in the second memory according to a second control signal generated based on second clock pulses, and the video signal written in the second memory is read from the second memory based on a reference signal generated based on the second clock pulses.
摘要翻译： 用于校正视频信号的时基的装置包括具有视频信号的一行的容量的第一存储器和连接到第一存储器的视频信号的N行的容量的第二存储器。 根据基于视频信号中的同步信息和与同步信息同步的第一时钟脉冲产生的第一控制信号将视频信号写入第一存储器，从第一存储器读取写入第一存储器的视频信号并写入 根据基于第二时钟脉冲产生的第二控制信号在第二存储器中，并且基于基于第二时钟脉冲产生的参考信号，从第二存储器读取写入第二存储器的视频信号。
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10.发明授权Recording/reproducing apparatus employing sum and difference sequential circuitry for lines adjacent in the second or third dimensional direction followed by time base conversion circuitry 失效对于在第二或第三维方向上相邻的线跟随着时基转换电路，采用和和差序列电路的记录/再现装置
公开(公告)号：US5272519A
公开(公告)日：1993-12-21
申请号：US713989
申请日：1991-06-12
摘要： The system is made up of signal conversion unit for converting a video signal into two-line sum signal and difference signal for every two lines, time base conversion unit for time base converting the signals so that the transmission band of the difference signal is lower than the transmission band of the sum signal, and signal multiplexing unit for time-sharing multiplexing a time base converted sum signal and a time base converted difference signal.
摘要翻译： 该系统由信号转换单元构成，用于将视频信号转换为两行和信号，每两行用于差分信号，时基转换单元用于对信号进行时基转换，使差分信号的传输频带低于 和信号的传输频带，以及用于时分复用时基转换和信号和时基转换差分信号的信号复用单元。
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