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    • 1. 发明授权
    • Image processing system
    • 图像处理系统
    • US4984083A
    • 1991-01-08
    • US373630
    • 1989-06-28
    • Kaneyuki OkamotoHideo NishijimaMichio MasudaHiroyasu OhtsuboKoichi Ono
    • Kaneyuki OkamotoHideo NishijimaMichio MasudaHiroyasu OhtsuboKoichi Ono
    • H04N5/45
    • H04N5/45
    • An image processing system comprising a first and second video signal sources providing a main-field video signal and sub-field video signal, respectively, means for compressing the sub-field video signal on the time axis, and a signal merging unit which merges the compressed sub-field video signal into the main-field video signal and delivers the resulting signal to a television receiver set, wherein the signal compressing means comprising a dual-port memory having a first and second ports and operating to compress the sub-field video signal on the time axis and store the compressed signal, and control means for controlling the reading and writing of the memory for the sub-field video signal, the control means comprising a first control section for writing the sub-field video signal into the first port of said memory, a second control section for transferring a signal from the first port to the second port, and a third control section for reading out a signal from the second port, said memory implementing the reading operation and writing operation in asynchronous manner.
    • 一种图像处理系统,包括分别提供主视频信号和副场视频信号的第一和第二视频信号源,用于在时间轴上压缩子场视频信号的装置,以及合并该视场信号的信号合并单元 将压缩的子场视频信号转换成主视频信号并将所得到的信号传送到电视接收机组,其中信号压缩装置包括具有第一和第二端口的双端口存储器,并且操作以压缩子场视频 信号在时间轴上并存储压缩信号,以及控制装置,用于控制子场视频信号的存储器的读和写,该控制装置包括第一控制部分,用于将子视频信号写入第一 所述存储器的端口,用于将信号从第一端口传送到第二端口的第二控制部分,以及用于从第二端口读出信号的第三控制部分, d存储器以异步方式实现读操作和写操作。
    • 4. 发明授权
    • Method and apparatus for recording and playing back monitored video data
    • 用于记录和重放监视的视频数据的方法和装置
    • US06684024B2
    • 2004-01-27
    • US09780429
    • 2001-02-12
    • Koichi OnoTakayuki KanesakiHideo Nishijima
    • Koichi OnoTakayuki KanesakiHideo Nishijima
    • H04N591
    • H04N5/76H04N5/781H04N9/8042H04N19/423H04N19/61
    • A method and an apparatus for recording and playing back monitored video data for recording monitored video data generated continuously for a long time on a magnetic tape, with less S/N degradation by shortening the operation time of the VTR to suppress the degradation of the magnetic tape, recording head, and other mechanical items. Video signals from a video camera are converted to digital signals in an A/D converter, compressed and encoded in a compression encoder and decoder circuit, then transferred to a time axis compression circuit which includes a first memory, the second memory, an SCSI controller, and a hard disk unit. The digital signal is thereafter compressed on the time axis and recorded on the magnetic tape loaded in a D-VHS standard VTR via an I/F circuit. Compressing the video data from the compression encoder and decoder circuit on the time axis in the time axis compression circuit makes the recording time of the video data shorter on the magnetic tape than the actual recording time of the video camera. The VTR is only required to record video data intermittently on the magnetic tape and a general home VTR can be adopted as the above VTR, this also prevents the magnetic tape from being damaged.
    • 一种用于记录和再现监视的视频数据的方法和装置,用于记录在磁带上长时间连续生成的监视视频数据,通过缩短VTR的操作时间来抑制S / N降级,以抑制磁性降级 胶带,记录头等机械物品。 来自摄像机的视频信号被转换成A / D转换器中的数字信号,压缩并编码在压缩编码器和解码器电路中,然后被传送到时间轴压缩电路,时间轴压缩电路包括第一存储器,第二存储器,SCSI控制器 和硬盘单元。 此后,数字信号在时间轴上被压缩,并通过I / F电路记录在装载在D-VHS标准VTR中的磁带上。 在时间轴压缩电路的时间轴上压缩来自压缩编码器和解码器电路的视频数据使得磁带上的视频数据的记录时间比摄像机的实际记录时间短。 VTR仅需要在磁带上间歇地记录视频数据,并且可以采用一般家庭VTR作为上述VTR,这也防止磁带被损坏。
    • 5. 发明授权
    • Magnetic recording/reproducing apparatus and the same equipped with an image sensor
    • 磁记录/重放装置和装备有图像传感器的装置
    • US06215948B1
    • 2001-04-10
    • US08996207
    • 1997-12-22
    • Katsuyuki WatanabeHideo NishijimaKoichi OnoAkihito NishizawaKazuaki Hori
    • Katsuyuki WatanabeHideo NishijimaKoichi OnoAkihito NishizawaKazuaki Hori
    • H04N577
    • H04N5/772H04N9/83Y10S358/906
    • A magnetic recording/reproducing apparatus equipped with an image sensor includes a camera portion having an A/D converter for converting a signal from an image sensor into a digital signal and a first digital processor for receiving an output of said A/D converter and for digitally processing thereof. A VTR portion of a helical scan type mounts at least two or more of magnetic heads for recording/reproducing a FM modulated luminance signal and a low band converted chrominance signal. A second digital processor processes a video signal of the VTR. A switching circuit is provided in a preceding state of said A/D converter. The signal from the image sensor, an external video signal and a reproduced signal from the magnetic heads are exchanged. The output of the A/D converter is inputted to the second digital processor, and a sampling clock of said A/D converter is exchanged to most profitable clock for the signal from said image sensor, the external video signal and the reproduced signal from the magnetic heads, respectively.
    • 配备有图像传感器的磁记录/再现装置包括具有用于将来自图像传感器的信号转换为数字信号的A / D转换器的相机部分和用于接收所述A / D转换器的输出的第一数字处理器, 进行数字处理。 螺旋扫描型的VTR部分安装用于记录/再现FM调制亮度信号和低频带转换色度信号的至少两个或更多个磁头。 第二数字处理器处理VTR的视频信号。 在所述A / D转换器的前一状态下提供开关电路。 来自图像传感器的信号,外部视频信号和来自磁头的再现信号被交换。 A / D转换器的输出被输入到第二数字处理器,并且所述A / D转换器的采样时钟被更换为来自所述图像传感器的信号的最有利时钟,外部视频信号和来自 磁头。
    • 6. 发明授权
    • Tracking device
    • 跟踪装置
    • US5359473A
    • 1994-10-25
    • US120825
    • 1993-09-15
    • Kouji KaniwaHideo NishijimaToshio NakamotoKoichi Ono
    • Kouji KaniwaHideo NishijimaToshio NakamotoKoichi Ono
    • G11B5/584
    • G11B5/584
    • A digital tracking device for use in a helical scan type magnetic recording and reproducing apparatus with an ATF system utilizing four-frequency pilot signals includes a sampling circuit which samples reproduced pilot signals with a frequency of a predetermined one of the four pilot signal frequencies, digital filter circuits for deriving aliasing signal components of the predetermined pilot signal produced by the sampling circuits, and a feedback circuit for feeding back a tracking error signal corresponding to signal levels of the aliasing signal components derived by the digital filter circuits to a magnetic tape drive system of the recording and reproducing apparatus.
    • 用于具有使用四频率导频信号的ATF系统的螺旋扫描型磁记录和再现装置的数字跟踪装置包括采样电路,其采样四个导频信号频率中预定的一个频率的再现导频信号,数字 滤波器电路,用于导出由采样电路产生的预定导频信号的混叠信号分量;以及反馈电路,用于将对应于由数字滤波器电路导出的混叠信号分量的信号电平的跟踪误差信号反馈到磁带驱动系统 的记录和再现设备。
    • 7. 发明授权
    • Method and apparatus for recording and playing back monitored video data
    • 用于记录和重放监视的视频数据的方法和装置
    • US07218834B2
    • 2007-05-15
    • US09978059
    • 2001-10-17
    • Koichi OnoTakayuki KanesakiHideo Nishijima
    • Koichi OnoTakayuki KanesakiHideo Nishijima
    • H04N7/00H04N5/86
    • H04N19/423H04N5/76H04N5/765H04N5/781H04N5/782H04N9/8042H04N9/8045H04N19/107H04N19/61
    • A method and an apparatus for recording and playing back monitored video data for recording monitored video data generated continuously for a long time on a magnetic tape, with less S/N degradation by shortening the operation time of the VTR to suppress the degradation of the magnetic tape, recording head, and other mechanical items, wherein video signals from a video camera are converted to digital signals in an A/D converter, compressed and encoded in a compression encoder & decoder circuit, then transferred to a time axis compression circuit including the first memory, the second memory, an SCSI controller, and a hard disk unit, thereafter compressed on the time axis and recorded on the magnetic tape loaded in a D-VHS standard VTR via an I/F circuit. Compressing the video data from the compression encoder & decoder circuit on the time axis in the time axis compression circuit makes shorter the recording time of the video data on the magnetic tape than the actual recording time of the video camera, whereby the VTR is only required to record video data intermittently on the magnetic tape and that a general home VTR can be adopted as the above VTR, moreover the magnetic tape itself is prevented from damages.
    • 一种用于记录和再现监视的视频数据的方法和装置,用于记录在磁带上长时间连续生成的监视视频数据,通过缩短VTR的操作时间来抑制S / N降级,以抑制磁性降级 磁带,记录头和其他机械物品,其中来自摄像机的视频信号被转换成A / D转换器中的数字信号,在压缩编码器和解码器电路中被压缩和编码,然后被传送到时间轴压缩电路,包括 第一存储器,第二存储器,SCSI控制器和硬盘单元,然后在时间轴上被压缩并且经由I / F电路记录在装载在D-VHS标准VTR中的磁带上。 在时间轴压缩电路中压缩来自压缩编码器和解码器电路的时间轴上的视频数据使得磁带上的视频数据的记录时间比摄像机的实际记录时间短,从而VTR只需要 在磁带上间歇地记录视频数据,并且可以采用一般家用录像机作为上述VTR,此外防止磁带本身的损坏。