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    • 1. 发明授权
    • Control system of tape travel for a magnetic recording and reproducing apparatus
    • 用于磁记录和再现装置的磁带行进控制系统
    • US06424483B1
    • 2002-07-23
    • US08751480
    • 1996-11-18
    • Kenichi HonjoHaruo IsakaSatoshi OhyamaMasafumi NishidaYoshio SakakibaraToshiyuki KohriKoji Sakurai
    • Kenichi HonjoHaruo IsakaSatoshi OhyamaMasafumi NishidaYoshio SakakibaraToshiyuki KohriKoji Sakurai
    • G11B1552
    • G11B15/125G11B5/5927G11B15/087G11B15/1808G11B15/1875G11B15/20G11B15/4675G11B15/4678G11B15/48G11B15/52G11B15/54G11B27/032G11B27/13G11B27/322G11B2220/90
    • A magnetic recording and reproducing device according to the present invention operates with steps of moving a magnetic tape having a plurality of tracks per frame and a plurality of control signals recorded thereon, keeping count of the pulses of a frequency generator signal corresponding to the rotation of a capstan motor by a frequency generator counter, resetting the count of the frequency generator pulses by the control signal reproduced by a fixed magnetic head, detecting the track number by the control signal counter reset by a frame reference signal, controlling, at the start, the start timing on the basis of the tape stop position detected by the frequency generator pulse counter and control counter and the reference frame signal from the reference frame signal generator. The device prevents thinning of tracks at the editing point in after-break recording and the disturbance of images immediately after the start. The device does not require a special circuit or complicated software-wise processing, and provides a stabilized slow-reproduced image. Further, in a magnetic recording and reproducing device for intermittent recording, there is no danger of causing thinning to recorded tracks. Thus, a reproduced image of high quality can be obtained.
    • 根据本发明的磁记录和再现装置的操作步骤是移动每帧具有多个磁道的磁带和记录在其上的多个控制信号,保持对应于频率发生器信号的旋转的脉冲数 通过频率发生器计数器的主导轴电动机,通过由固定磁头再现的控制信号来复位频率发生器脉冲的计数,通过由帧参考信号重新设置的控制信号计数器检测磁道号, 基于由频率发生器脉冲计数器和控制计数器检测的磁带停止位置的起始定时和来自参考帧信号发生器的参考帧信号。 该设备防止在断点录制时的编辑点的轨道变薄,以及开始后立即对图像的干扰。 该设备不需要特殊电路或复杂的软件处理,并提供稳定的慢再现图像。 此外,在用于间歇记录的磁记录和再现装置中,不存在导致记录轨迹变薄的危险。 因此,可以获得高质量的再现图像。
    • 2. 发明授权
    • Video signal recording and reproducing apparatus
    • 视频信号记录和再现装置
    • US06266479B1
    • 2001-07-24
    • US09242113
    • 1999-02-09
    • Toshiyuki KohriHaruo IsakaKenichi Honjo
    • Toshiyuki KohriHaruo IsakaKenichi Honjo
    • H04N5783
    • H04N5/9205H04N5/783H04N5/9201H04N7/181
    • The present invention is a video signal recording and reproducing apparatus for recording and reproducing video signals (SvN) inputted from a plurality (n) of different cameras (CMn). A frame switcher (2) sequentially selects one of the video signals (SvN) in prescribed order, and identifying signal adders (10a, 10b) add an identifying signal (Sid) representing a corresponding camera number (N) to the selected video signal (SvN) and generate recording signals (Sr1, Sr2). A recording signal processor (11) modulates the recording signals (Sr1, Sr2) and recording magnetic heads (16a, 16b) record them on a magnetic tape (4). Reproducing heads (15a, 15b) reproduce a recorded recording signal (Sr′) from the magnetic tape (4) and a reproducing processor (14) demodulates the signal. A camera number detector (23) detects the identifying signal (Sid) from a demodulated video signal (Sr2′). Memory (24) stores the demodulated video signal (Sr2′) in relation to the detected identifying signal (Sid), thereby allowing high-speed and normal-speed replay of video from a desired video signal source without video signals from a plurality of video signal sources mixed into.
    • 本发明是用于记录和再现从多个(n)个不同相机(CMn)输入的视频信号(SvN)的视频信号记录和再现装置。 帧切换器(2)以规定顺序依次选择视频信号(SvN)中的一个,识别信号加法器(10a,10b)将表示相应摄像机号码(N)的识别信号(Sid)加到所选视频信号 SvN)并产生记录信号(Sr1,Sr2)。 记录信号处理器(11)将记录信号(Sr1,Sr2)和记录磁头(16a,16b)记录在磁带(4)上。 再现头(15a,15b)从磁带(4)再现记录的记录信号(Sr'),再现处理器(14)对信号进行解调。 相机号码检测器(23)从解调视频信号(Sr2')检测识别信号(Sid)。 存储器(24)相对于检测到的识别信号(Sid)存储解调的视频信号(Sr2'),从而允许来自所需视频信号源的视频的高速和正常速度重放,而没有来自多个视频的视频信号 信号源混入。
    • 4. 发明授权
    • Image switching device and image outputting devices
    • 图像切换装置和图像输出装置
    • US07486308B1
    • 2009-02-03
    • US09744395
    • 2000-05-23
    • Toshiyuki KoriHaruo IsakaKenichi Honjo
    • Toshiyuki KoriHaruo IsakaKenichi Honjo
    • H04N7/18H04N5/95
    • H04L12/40058H04L12/40071H04L12/40117H04N5/04H04N5/073H04N5/268H04N5/4401H04N7/181H04N21/422H04N21/43615H04N21/43632
    • An image switching device for connecting to a plurality of image output devices via a digital interface having the capability of selecting image outputs sequentially of the image outputting devices. Cameras (101 to 104) are connected to a camera switching device (105) via an IEEE 1394 standard-based digital interface (114). Synchronizing timing signals transmitted in isochronous communication packets from the camera switching device (105) are synchronized with image signals on the camera (101 to 104) sides, each camera (101 to 104) transmits its image signals in synchronous communication packets based on image switching control data transmitted in asynchronous communication packets or isochronous communication packets from a camera switching control unit (106), and the camera switching device (105) selectively receives image data transmitted from a desired camera based on image switching control data.
    • 一种图像切换装置,用于经由具有依次选择图像输出装置的图像输出的能力的数字接口连接到多个图像输出装置。 相机(101至104)经由基于IEEE 1394标准的数字接口(114)连接到照相机切换装置(105)。 将来自摄像机切换装置(105)的同步通信分组中发送的定时信号的同步与摄像机(101至104)侧的图像信号同步,每个摄像机(101至104)基于图像切换以同步通信分组传送其图像信号 控制数据从摄像机切换控制单元(106)发送到异步通信分组或等时通信分组中,并且相机切换设备(105)基于图像切换控制数据选择性地接收从期望的相机发送的图像数据。