Video tape recorder/player
    3.
    发明授权
    Video tape recorder/player 失效
    用于记录/再现具有不同宽高比的视频信号的录像机/播放器

    公开(公告)号:US5307171A

    公开(公告)日:1994-04-26

    申请号:US556578

    申请日:1990-07-24

    IPC分类号: H04N9/79 H04N5/78 H04N5/783

    CPC分类号: H04N9/7921

    摘要: A video tape recorder/player capable of selectively recording a wide-band video signal including information for forming a picture of an aspect ratio a.sub.1, and a normal video signal for forming a picture of an aspect ratio a.sub.2. The video tape recorder/player comprises video signal discriminating means for discriminating between the reproduced wide video signal and the reproduced normal video signal reproduced from a magnetic recording medium, and time expansion means for expanding the time base of the reproduced video signal by a factor approximately equal to the ratio a.sub.1 /a.sub.2. Either the reproduced video signal or the output signal of the time expansion means obtained by expanding the time base of the reproduced signal by the time expansion means can be selected as an output signal when the video signal discriminating means detects the wide video signal.

    摘要翻译: 能够选择性地记录包括用于形成长宽比a1的图像的信息的宽带视频信号的磁带录像机/播放机,以及用于形成纵横比a2的图像的通常的视频信号。 录像机/播放机包括视频信号识别装置,用于鉴别再现的宽视频信号和从磁记录介质再现的再现的正常视频信号,以及时间扩展装置,用于将再现的视频信号的时基以大约 等于a1 / a2的比率。 当视频信号鉴别装置检测到宽视频信号时,通过扩展时间扩展装置的再现信号的时基而获得的再现视频信号或时间扩展装置的输出信号可被选择为输出信号。

    Audio signal recording/reproducing apparatus for recording and
reproducing high-definition television system audio signal of a
plurality of channels
    4.
    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

    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。

    Audio signal recording/reproducing system for use in time-lapse video
tape recorder
    5.
    发明授权
    Audio signal recording/reproducing system for use in time-lapse video tape recorder 失效
    用于延时录像机的音频信号记录/再现系统

    公开(公告)号:US4819097A

    公开(公告)日:1989-04-04

    申请号:US192170

    申请日:1988-05-10

    摘要: An audio signal recording/reproducing system is used in a time-lapse video tape recording device for time-lapse recording a video signal on a magnetic tape at predetermined time intervals. The audio signal recording/reproducing system comprises a memory which stores an audio signal and time-compresses the stored audio signal to output it as the time-compressed audio signal at one field period, and a magnetic head for recording the one-field period audio signal on the magnetic tape. Each of the audio signal recording tracks recorded on the magnetic tape is arranged between two adjacent video signal recording tracks. The audio signal recorded on the magnetic tape is read out by the magnetic head and stored in the memory again. The audio signal stored in the memory is expanded in its time-base to be reproduced as continuous sound.

    摘要翻译: 一种音频信号记录/再现系统被用于延时录像带记录装置中,用于以预定的时间间隔在视频信号上以时间流逝的方式在磁带上记录视频信号。 音频信号记录/再现系统包括一个存储器,存储一个音频信号,并对所存储的音频信号进行时间压缩,以便在一个场周期将其作为时间压缩的音频信号输出;以及磁头,用于记录一场周期音频 信号在磁带上。 记录在磁带上的每个音频信号记录磁道被布置在两个相邻的视频信号记录磁道之间。 记录在磁带上的音频信号由磁头读出并再次存储在存储器中。 存储在存储器中的音频信号在其时间基础上被扩展以被再现为连续声音。

    Relay control circuit
    6.
    发明授权
    Relay control circuit 失效
    继电器控制电路

    公开(公告)号:US4153922A

    公开(公告)日:1979-05-08

    申请号:US856978

    申请日:1977-12-02

    IPC分类号: H01H9/56 H02H7/22

    CPC分类号: H01H9/56 Y10T307/931

    摘要: A relay control circuit is disclosed in which a timer circuit is actuated by a reference clock pulse in synchronism with an AC voltage supplied by a commercial power supply. An output signal of the timer circuit causes current to flow in the coil of the relay thereby to close the contact of a relay. The invention further comprises a polarity-reversing device for reversing the polarity in accordance with the variations in the output signal of the timer circuit. The reference clock pulse is applied to the timer circuit through the polarity-reversing device.

    摘要翻译: 公开了一种继电器控制电路,其中定时器电路由与商用电源提供的AC电压同步的参考时钟脉冲驱动。 定时器电路的输出信号使电流在继电器的线圈中流动,从而闭合继电器的接触。 本发明还包括根据定时器电路的输出信号的变化使极性反转的极性反转装置。 参考时钟脉冲通过极性反转装置施加到定时器电路。

    Magnetic recording apparatus with capability of recording signals of a
plurality of different television systems
    7.
    发明授权
    Magnetic recording apparatus with capability of recording signals of a plurality of different television systems 失效
    具有记录多个不同电视系统的信号能力的磁记录装置

    公开(公告)号:US5499145A

    公开(公告)日:1996-03-12

    申请号:US151790

    申请日:1993-11-15

    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。

    Magnetic video recording/reproducing apparatus for video signals of
different aspect ratios adapter unit
    9.
    发明授权
    Magnetic video recording/reproducing apparatus for video signals of different aspect ratios adapter unit 失效
    用于不同宽高比适配器单元的视频信号的磁视频记录/再现装置

    公开(公告)号:US5122885A

    公开(公告)日:1992-06-16

    申请号:US475963

    申请日:1990-02-06

    CPC分类号: H04N9/832 H04N9/797

    摘要: In a magnetic video recording/reproducing apparatus having a recording circuit for recording two kinds of video signals for different aspect ratios a.sub.1 and a.sub.2, where a.sub.1 >a.sub.2, a reproduced signal for aspect ratio a.sub.1 is subjected to a time-axis processing and then delivered to a monitor television having the aspect ratio a.sub.2 in order to avoid a picture on the monitor television from being so distorted as to be elongated vertically. During the time-axis processing, a Y/C interleave set-up processing and a time-axis variation correcting processing are also carried out as necessary. A reproduced signal for aspect ratio a.sub.2 is subjected to a time-axis processing and then delivered to a monitor television having the aspect ratio a.sub.1 in order to avoid a picture on the monitor television from being so distorted as to be elongated horizontally.

    摘要翻译: 在具有用于记录用于不同宽高比a1和a2的两种视频信号的记录电路的磁性视频记录/再现装置中,其中a1> a2,对长宽比a1的再现信号进行时间轴处理,然后传送 具有纵横比a2的监视器电视,以避免监视器电视机上的图像变得垂直变形。 在时间轴处理期间,根据需要还进行Y / C交错建立处理和时间轴变化校正处理。 纵横比a2的再现信号经历时间轴处理,然后传送到具有纵横比a1的监视电视机,以避免监视电视机上的图像变得水平变窄。

    Method and apparatus for reproducing information at variable speeds from
a magnetic tape
    10.
    发明授权
    Method and apparatus for reproducing information at variable speeds from a magnetic tape 失效
    从磁带以可变速度再现信息的方法和装置

    公开(公告)号:US4581659A

    公开(公告)日:1986-04-08

    申请号:US564904

    申请日:1983-12-23

    CPC分类号: G11B15/1875 G11B15/1808

    摘要: A method and apparatus for reproducing information at variable speeds from a magnetic tape by correcting a deviation between at least one video track of the magnetic tape and a rotating head during a tape stop state of an intermittent drive for a noiseless slow-still picture in a video tape recorder using pilot signals. A series of pulses produced by a frequency generator of a capstan for feeding the tape is counted during the tape feeding state of an intermittent drive in order to detect a timing of the stopping of the tape feeding. As the count number equals a set value corresponding to a regular amount of feeding of the tape during the intermittent drive, the tape feeding is controlled to stop. A tracking error signal is produced from the pilot signals reproduced from the tape by the rotating head within the tape stop state of the intermittent drive and the set value for the next tape feeding of the intermittent drive is adjusted in response to the tracking error signal.

    摘要翻译: 一种方法和装置,用于通过在磁带的至少一个视频轨道和旋转磁头之间的偏差中再现来自磁带的可变速度的信息,该方法和装置在用于无噪声慢静止图像的间歇驱动的磁带停止状态 录像机使用导频信号。 在间歇驱动的带馈送状态期间,计数由用于馈送带的绞盘的频率发生器产生的一系列脉冲,以便检测送带停止的定时。 由于计数值等于在间歇驱动期间对应于规定的送带量的设定值,因此控制送带被停止。 在间歇驱动的磁带停止状态下,通过旋转磁头从磁带再生的导频信号产生跟踪误差信号,并且响应于跟踪误差信号调整间歇驱动的下一个磁带馈送的设定值。