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    • 2. 发明授权
    • Noise reducer, noise reducing thereof, picture signal processing apparatus, and motion detecting method
    • 降噪器,降噪器,图像信号处理装置和运动检测方法
    • US06343097B2
    • 2002-01-29
    • US09329284
    • 1999-06-16
    • Hiroshi KobayashiTakao TakahashiToshiya AkibaMasami Tomita
    • Hiroshi KobayashiTakao TakahashiToshiya AkibaMasami Tomita
    • H04N712
    • H04N5/21H04N5/145H04N9/7908H04N9/8042
    • A detecting circuit detects a moving vector for each block. Corresponding to the moving vectors, a plurality of moving portions in one field are extracted. Thus, a moving vector of each moving portion is generated. In a field memory, a motion compensating process is performed corresponding to the moving vectors. A field difference between the input signal and a signal that has been movement-compensated is supplied to an Hadamard transform circuit. The Hadamard transform circuit divides the field difference signal into a plurality of frequency components. A non-linear circuit has noise components corresponding to individual frequency bands. An output signal of the non-linear circuit is supplied to an inverse-Hadamard transform circuit. The inverse-Hadamard transform circuit performs an inverse-Hadamard transform process. The resultant signal is subtracted from the input picture signal.
    • 检测电路检测每个块的移动矢量。 对应于移动向量,提取一个场中的多个移动部分。 因此,产生每个移动部分的移动矢量。 在场存储器中,对应于移动矢量执行运动补偿处理。 输入信号和已被运动补偿的信号之间的场差被提供给Hadamard变换电路。 哈达玛变换电路将场差信号分为多个频率分量。 非线性电路具有对应于各个频带的噪声分量。 非线性电路的输出信号被提供给逆哈达玛变换电路。 逆Hadamard变换电路执行逆Hadamard变换过程。 从输入图像信号中减去得到的信号。
    • 4. 发明授权
    • Digital signal recording and/or reproducing apparatus
    • 数字信号记录和/或再现装置
    • US5469272A
    • 1995-11-21
    • US227183
    • 1994-04-13
    • Yukio KubotaTakayuki SasakiTakao TakahashiHiroshi Kobayashi
    • Yukio KubotaTakayuki SasakiTakao TakahashiHiroshi Kobayashi
    • G11B15/087G11B20/12G11B27/30H04N5/76
    • G11B27/3036G11B20/1207G11B27/3027G11B2020/10537G11B2020/1087G11B2020/10879G11B2020/10888
    • A still picture video signal processing unit 30 and a head unit 40 records video signals of a still picture imaged by a camera unit 10 and PCM audio signals from terminal 2 in a PCM audio area of a magnetic tape 1 as digital signals. A controlling unit 50 controls the still picture video signal processing unit 30 so that an ID for discriminating interchangeability or non-interchangeability of the digital signals may be stored in a predetermined area. During playback, the controlling unit 50 controls the processing unit 30 or the like so that the video signals, the PCM audio signals or the like may be reproduced based on the ID. The user may be informed as to if the recorded digital signals belong to the basic function having interchangeability or to the extension function not having interchangeability and as to the reason playback cannot be made. The producer may be free to add a unique function to make distinction from products of other producers as well as to develop products attractive to customers.
    • 静止图像视频信号处理单元30和头单元40将由相机单元10成像的静止图像的视频信号和来自端子2的PCM音频信号记录在磁带1的PCM音频区域中作为数字信号。 控制单元50控制静止图像视频信号处理单元30,使得用于识别数字信号的可互换性或不可互换性的ID可以被存储在预定区域中。 在重放期间,控制单元50控制处理单元30等,使得可以基于ID再现视频信号,PCM音频信号等。 可以通知用户所记录的数字信号是否具有可互换性的基本功能,或者不具有互换性的扩展功能以及不能进行播放的原因。 生产者可以自由添加独特功能,以区分其他生产者的产品,以及开发对客户有吸引力的产品。