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    • 92. 发明授权
    • Apparatus for recording and/or reproducing, in successive slant tracks
on a record tape, at least an audio signal and an index signal for
controlling tape transport
    • 用于在记录带上的连续倾斜轨道中记录和/或再现用于控制磁带传输的至少一个音频信号和索引信号的装置
    • US4791497A
    • 1988-12-13
    • US885203
    • 1986-07-14
    • Kenji NakanoHiroshi OkadaTakao Takahashi
    • Kenji NakanoHiroshi OkadaTakao Takahashi
    • G11B5/008G11B15/087G11B20/10G11B27/30G11B5/09
    • G11B27/3036G11B15/087G11B20/10527G11B27/3009G11B27/3027G11B5/0086G11B2220/90G11B2220/913
    • In an apparatus for recording and/or reproducing, in successive slant tracks on a record tape, an information signal comprised of at least an audio signal and an index signal for use in controlling transportation of the tape; the input audio signal is converted to a digitized form in which the audio data for a predetermined length of time is grouped as a plurality of data blocks which are recorded by a rotary head in a first part of a respective slant track on the tape, an index signal generator provides a coded index signal to indicate respective input information, such as, an absolute tape-position address counted from a predetermined reference position on the record tape, an index area signal is generated in predetermined timed relation to scanning by the rotary head of said first part of each slant track, and a control is responsive to the index area signal for supplying the coded index signal to a rotary head for recording by the latter in a second part of said respective slant track which is located adjacent an end of said first part of the respective slant track.
    • 在用于记录和/或再现的装置中,在记录磁带上的连续的倾斜磁道中,包括至少一个音频信号和索引信号的信息信号,用于控制磁带的传输; 将输入音频信号转换为数字化形式,其中预定时间长度的音频数据被分组为由旋转磁头记录在磁带上的相应倾斜磁道的第一部分中的多个数据块, 索引信号发生器提供编码索引信号以指示相应的输入信息,例如从记录带上的预定基准位置计数的绝对磁带位置地址,以与旋转磁头扫描相关的预定定时关系产生索引区域信号 并且控制响应于索引区域信号,用于将编码的索引信号提供给旋转磁头,用于由所述旋转磁头记录在所述相应倾斜磁道的第二部分中,所述第二部分位于 表示相应倾斜轨迹的第一部分。
    • 94. 发明授权
    • Method and apparatus for recording and reproducing an information signal
comprising a video signal and audio signal
    • 用于记录和再现包括视频信号和音频信号的信息信号的方法和装置
    • US4542419A
    • 1985-09-17
    • US463337
    • 1983-02-02
    • Minoru MorioKenji NakanoHisayoshi Moriwaki
    • Minoru MorioKenji NakanoHisayoshi Moriwaki
    • G11B20/00G11B5/008G11B20/10G11B20/12H04N5/7826H04N5/928H04N5/91
    • H04N5/928G11B20/10527G11B5/0086G11B5/00878
    • Apparatus for recording and reproducing an information signal comprising at least an analog audio signal in a plurality of successive tracks on a magnetic tape includes a PCM processing circuit for converting an analog audio signal into a PCM audio signal; a video signal processing circuit for processing a video signal to produce an output video signal; a rotary magnetic head assembly for recording the output video signal and the PCM audio signal in the plurality of successive tracks on the tape; a switch assembly for supplying the output video signal and the PCM audio signal to the rotary magnetic head assembly; and a control circuit for controlling the switch assembly to supply the output video signal and the PCM audio signal to the rotary magnetic head assembly during a video use mode so that the latter records the output video signal in a main section of each track and to supply only the PCM audio signal to the rotary magnetic head assembly during an audio use mode so that the latter records the PCM audio signal in different segments of the main section and overscan section of each track.
    • 用于记录和再现在磁带上的多个连续轨道中至少包括模拟音频信号的信息信号的装置包括用于将模拟音频信号转换成PCM音频信号的PCM处理电路; 视频信号处理电路,用于处理视频信号以产生输出视频信号; 用于将输出视频信号和PCM音频信号记录在磁带上的多个连续轨道中的旋转磁头组件; 用于将输出视频信号和PCM音频信号提供给旋转磁头组件的开关组件; 以及控制电路,用于控制开关组件以在视频使用模式期间将输出视频信号和PCM音频信号提供给旋转磁头组件,使得后者将输出视频信号记录在每个磁道的主要部分中并提供 在音频使用模式期间仅将PCM音频信号传送到旋转磁头组件,以便后者将PCM音频信号记录在每个磁道的主要部分的不同部分和过扫描部分中。
    • 95. 发明授权
    • Method and apparatus for reproducing an information signal comprised of
a video signal and audio signal
    • 用于再现由视频信号和音频信号组成的信息信号的方法和装置
    • US4542418A
    • 1985-09-17
    • US459933
    • 1983-01-21
    • Shigeyuki YoneyamaKenji NakanoHisayoshi MoriwakiTakao Takahashi
    • Shigeyuki YoneyamaKenji NakanoHisayoshi MoriwakiTakao Takahashi
    • G11B20/00G11B20/10H04N5/926H04N5/928H04N9/82H04N5/91
    • H04N9/8211H04N5/9268H04N5/928
    • A reproducing section of a helical scan VTR for reproducing a color television signal recorded in a plurality of successive parallel tracks on a magnetic tape and comprised of a video signal and at least one of a frequency-modulated audio signal and the combination of a PCM audio signal and run-in signal, with the video signal and frequency-modulated audio signal being recorded only in a main section of each track and the PCM audio signal being recorded only in an overscan section of each track, the VTR including a pair of magnetic heads which scan the tracks to reproduce the information signal recorded therein; a pair of switch circuits connected to the heads and which separate the information signal reproduced during scanning of the main section of each track and a signal reproduced during scanning of the overscan section of each track; a detector which detects the presence or absence of a run-in signal from the separated signal reproduced during scanning of the overscan section of each track and produces a detection signal in response thereto; an output; and a switch for switching an analog audio signal reproduced from the PCM audio signal to the output in response to the detection signal when a run-in signal is detected and an analog audio signal reproduced from the frequency-modulated audio signal to the output in response to the detection signal when no run-in signal is detected.
    • 一种螺旋扫描VTR的再现部分,用于再现记录在磁带上的多个连续并行轨道中的彩色电视信号,并且包括视频信号和调频音频信号以及PCM音频的组合中的至少一个 信号和输入信号,其中视频信号和调频音频信号仅记录在每个磁道的主要部分中,并且PCM音频信号仅被记录在每个磁道的过扫描部分中,VTR包括一对磁 扫描轨道以再现记录在其中的信息信号的磁头; 连接到磁头的一对开关电路,并且分离在每个磁道的主要部分的扫描期间再现的信息信号和在每个磁道的过扫描部分的扫描期间再现的信号; 检测器,其从在每个轨道的过扫描部分的扫描期间再现的分离信号检测入侵信号的存在或不存在,并响应于此产生检测信号; 输出 以及用于当检测到输入信号时响应于检测信号将从PCM音频信号再现的模拟音频信号切换到输出的开关和从调频音频信号再现的模拟音频信号到响应的输出 到没有检测到输入信号时的检测信号。
    • 96. 发明授权
    • Phase servo circuit
    • 相伺服电路
    • US4390908A
    • 1983-06-28
    • US206055
    • 1980-11-12
    • Tadahiko NakamuraKenji NakanoShigeru Tajima
    • Tadahiko NakamuraKenji NakanoShigeru Tajima
    • H04N5/7826G11B15/18G11B15/467G11B27/02G11B27/024H04N5/78
    • G11B27/024G11B15/1808G11B2220/90
    • A phase servo circuit for controlling a rotatable magnetic head which is used for recording and/or reproducing a television signal includes a pulse generator for producing a pulse signal synchronous with the rotating phase of the rotatable magnetic head, a phase difference detecting circuit for generating a control signal which is used for controlling the rotating phase of the rotatable magnetic head, the control signal having a pulse width modulated in response to the phase difference between the pulse signal and the vertical synchronizing signal of a television signal to be recorded, another circuit for detecting the phase difference between the aforementioned vertical synchronizing signal and a second vertical synchronizing signal of a reproduced television signal and a modulating circuit for modulating the pulse width of the control signal in response to the output of the phase difference detecting circuit, whereby the phase angle of the first-mentioned and second vertical synchronizing signals are in synchronization with each other on a magnetic tape in order to carry out tape editing operation.
    • 用于控制用于记录和/或再现电视信号的可旋转磁头的相位伺服电路包括:脉冲发生器,用于产生与可旋转磁头的旋转相位同步的脉冲信号;相位差检测电路,用于产生 用于控制可旋转磁头的旋转相位的控制信号,该控制信号具有响应于要记录的电视信号的脉冲信号和垂直同步信号之间的相位差调制的脉冲宽度, 检测上述垂直同步信号与再现电视信号的第二垂直同步信号之间的相位差,以及响应于相位差检测电路的输出调制控制信号的脉冲宽度的调制电路,由此相位角 的第一和第二垂直同步 为了进行磁带编辑操作,磁带信号在磁带上彼此同步。
    • 98. 发明授权
    • Automatic tracking servo control system
    • 自动跟踪伺服控制系统
    • US4224643A
    • 1980-09-23
    • US945121
    • 1978-09-25
    • Kenji NakanoTadahiko Nakamura
    • Kenji NakanoTadahiko Nakamura
    • H04N5/7826G05D13/62G11B15/467G11B27/04G11B5/08G11B15/46H02K27/20
    • G11B15/4675
    • An automatic tracking servo control system which is adapted to control the tracking of at least one rotary signal reproducing transducer which scans successive parallel record tracks on a movable record medium. Position pulses are generated when the transducer rotates into predetermined position with respect to the record medium, and these position pulses are used in conjunction with control signals which are reproduced from the record medium and which had been recorded at spaced locations therealong in predetermined relation to the record tracks for controlling the position of the transducer with respect to the tracks scanned thereby. A detector detects the relative strength of the signal reproduced by the transducer during periodic intervals. A phase shift circuit shifts the phase of the position pulses by a selected amount during successive scanning cycles of the transducer, this amount being periodically adjusted as a function of the difference between the relative signal strengths in successive periodic intervals. The phase-shifted position pulses are used in a servo circuit, together with the control pulses, to control the tracking of the rotary head.
    • 一种自动跟踪伺服控制系统,其适于控制对可移动记录介质上的连续并行记录轨道进行扫描的至少一个旋转信号再现换能器的跟踪。 当换能器相对于记录介质旋转到预定位置时,产生位置脉冲,并且这些位置脉冲与从记录介质再现的控制信号一起使用,并且已经以与 记录轨道,用于控制换能器相对于由此扫描的轨迹的位置。 检测器在周期性间隔期间检测由换能器再现的信号的相对强度。 相移电路在换能器的连续扫描周期期间将位置脉冲的相位移位所选择的量,该量作为连续周期性间隔中的相对信号强度之差的函数被周期性地调整。 相移位置脉冲与控制脉冲一起用于伺服电路,以控制旋转磁头的跟踪。
    • 100. 发明授权
    • Multi-channel, multi-band audio equalization
    • 多通道,多频段音频均衡
    • US08199932B2
    • 2012-06-12
    • US11986120
    • 2007-11-20
    • Kenji Nakano
    • Kenji Nakano
    • H03G5/00
    • H04S7/301H04S7/307
    • A signal processing apparatus includes a plurality of equalizers configured to input an audio signal of a corresponding channel among audio signals of a plurality of channels and configured to perform at least gain adjustment on the basis of a set parameter, each of the equalizers being provided in such a manner as to correspond to an audio signal of one of the plurality of channels; a plurality of output sections configured to output each audio signal for each of the plurality of channels, the audio signal being processed by the equalizer; a measurement section configured to measure frequency-amplitude characteristics of the audio signal output from the output section; and a computation section configured to perform a computation process for correcting frequency-amplitude characteristics of an audio signal of each channel on the basis of the measurement result by the measurement section.
    • 信号处理装置包括多个均衡器,其被配置为在多个信道的音频信号中输入相应信道的音频信号,并且被配置为基于设定参数至少执行增益调整,每个均衡器设置在 这样的方式对应于多个频道之一的音频信号; 多个输出部分,被配置为输出所述多个通道中的每一个的每个音频信号,所述音频信号由所述均衡器处理; 测量部分,被配置为测量从所述输出部分输出的所述音频信号的频率 - 幅度特性; 以及计算部,其被配置为基于测量部的测量结果执行用于校正每个声道的音频信号的频率振幅特性的计算处理。