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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。
    • 3. 发明授权
    • Signal reproducing method and apparatus, signal recording/reproducing method and apparatus and signal recording medium
    • 信号再现方法和装置,信号记录/再现方法和装置以及信号记录介质
    • US07295756B2
    • 2007-11-13
    • US11085651
    • 2005-03-21
    • Takao TakahashiMasashi OhtaToshiya AkibaMasami TomitaTaro Suito
    • Takao TakahashiMasashi OhtaToshiya AkibaMasami TomitaTaro Suito
    • H04N5/93
    • H04N9/8045G11B20/10527G11B27/032G11B27/034G11B27/036G11B27/105G11B27/11G11B27/329G11B2020/10592G11B2020/10916G11B2220/20G11B2220/216G11B2220/2525G11B2220/65G11B2220/90H04N5/783
    • By reducing the number of seek operations in an operation to play back a signal from a recording medium, the amount of data temporarily stored in a read buffer memory employed in a signal recording/playback apparatus is large enough to be output as a playback signal during a seek operation, allowing a continuous playback operation to be carried out. In order to reduce the number of seek operations, a signal is always recorded onto the recording medium in continuous free areas each having a size equal to or larger than a predetermined recording/playback time length which is typically set at 1 minute. If it is necessary to insert an additional signal having a length smaller than the predetermined recording/playback time length into a point of insertion in an area already occupied by an existing signal, a continuous free area with a size equal to or larger than the predetermined recording/playback time length is newly allocated to the additional signal. The additional signal is then recorded in the free area instead of being inserted into the point of insertion. Since the free area is larger in size than the length of the additional signal, the rest of the free area is filled up with a portion of the existing signal adjacent to the point of insertion.
    • 通过减少用于从记录介质播放信号的操作中的寻道操作次数,临时存储在信号记录/重放装置中使用的读缓冲存储器中的数据量足够大以作为重放信号被输出 搜索操作,允许执行连续播放操作。 为了减少搜索操作的数量,信号总是被记录在连续空闲区域中的记录介质上,每个区域的大小等于或大于通常设置为1分钟的预定记录/重放时间长度。 如果需要将具有小于预定记录/重放时间长度的长度的附加信号插入到已经被现有信号占据的区域中的插入点中,则具有等于或大于预定记录/重放时间长度的尺寸的连续空闲区域 记录/播放时间长度被新分配给附加信号。 然后将附加信号记录在空闲区域中,而不是插入插入点。 由于空闲区域的尺寸大于附加信号的长度,所以剩余的空闲区域被填充有与插入点相邻的现有信号的一部分。
    • 4. 发明授权
    • Signal recording method and apparatus, signal recording / reproducing method and apparatus and signal recording medium
    • 信号记录方法和装置,信号记录/再现方法和装置以及信号记录介质
    • US07130524B2
    • 2006-10-31
    • US11085389
    • 2005-03-21
    • Takao TakahashiMasashi OhtaToshiya AkibaMasami TomitaTaro Suito
    • Takao TakahashiMasashi OhtaToshiya AkibaMasami TomitaTaro Suito
    • H04N5/93
    • H04N9/8045G11B20/10527G11B27/032G11B27/034G11B27/036G11B27/105G11B27/11G11B27/329G11B2020/10592G11B2020/10916G11B2220/20G11B2220/216G11B2220/2525G11B2220/65G11B2220/90H04N5/783
    • By reducing the number of seek operations in an operation to play back a signal from a recording medium, the amount of data temporarily stored in a read buffer memory employed in a signal recording/playback apparatus is large enough to be output as a playback signal during a seek operation, allowing a continuous playback operation to be carried out. In order to reduce the number of seek operations, a signal is always recorded onto the recording medium in continuous free areas each having a size equal to or larger than a predetermined recording/playback time length which is typically set at 1 minute. If it is necessary to insert an additional signal having a length smaller than the predetermined recording/playback time length into a point of insertion in an area already occupied by an existing signal, a continuous free area with a size equal to or larger than the predetermined recording/playback time length is newly allocated to the additional signal. The additional signal is then recorded in the free area instead of being inserted into the point of insertion. Since the free area is larger in size than the length of the additional signal, the rest of the free area is filled up with a portion of the existing signal adjacent to the point of insertion.
    • 通过减少用于从记录介质播放信号的操作中的寻道操作次数,临时存储在信号记录/重放装置中使用的读缓冲存储器中的数据量足够大以作为重放信号被输出 搜索操作,允许执行连续播放操作。 为了减少搜索操作的数量,信号总是被记录在连续空闲区域中的记录介质上,每个区域的大小等于或大于通常设置为1分钟的预定记录/重放时间长度。 如果需要将具有小于预定记录/重放时间长度的长度的附加信号插入到已经被现有信号占据的区域中的插入点中,则具有等于或大于预定记录/重放时间长度的尺寸的连续空闲区域 记录/播放时间长度被新分配给附加信号。 然后将附加信号记录在空闲区域中,而不是插入插入点。 由于空闲区域的尺寸大于附加信号的长度,所以剩余的空闲区域被填充有与插入点相邻的现有信号的一部分。
    • 5. 发明授权
    • Signal recording method and apparatus, signal recording/reproducing method and appparatus and signal recording medium
    • 信号记录方法和装置,信号记录/再现方法和设备和信号记录介质
    • US07127151B2
    • 2006-10-24
    • US11083643
    • 2005-03-18
    • Takao TakahashiMasashi OhtaToshiya AkibaMasami TomitaTaro Suito
    • Takao TakahashiMasashi OhtaToshiya AkibaMasami TomitaTaro Suito
    • H04N5/93
    • H04N9/8045G11B20/10527G11B27/032G11B27/034G11B27/036G11B27/105G11B27/11G11B27/329G11B2020/10592G11B2020/10916G11B2220/20G11B2220/216G11B2220/2525G11B2220/65G11B2220/90H04N5/783
    • By reducing the number of seek operations in an operation to play back a signal from a recording medium, the amount of data temporarily stored in a read buffer memory employed in a signal recording/playback apparatus is large enough to be output as a playback signal during a seek operation, allowing a continuous playback operation to be carried out. In order to reduce the number of seek operations, a signal is always recorded onto the recording medium in continuous free areas each having a size equal to or larger than a predetermined recording/playback time length which is typically set at 1 minute. If it is necessary to insert an additional signal having a length smaller than the predetermined recording/playback time length into a point of insertion in an area already occupied by an existing signal, a continuous free area with a size equal to or larger than the predetermined recording/playback time length is newly allocated to the additional signal. The additional signal is then recorded in the free area instead of being inserted into the point of insertion. Since the free area is larger in size than the length of the additional signal, the rest of the free area is filled up with a portion of the existing signal adjacent to the point of insertion.
    • 通过减少用于从记录介质播放信号的操作中的寻道操作次数,临时存储在信号记录/重放装置中使用的读缓冲存储器中的数据量足够大以作为重放信号被输出 搜索操作,允许执行连续播放操作。 为了减少搜索操作的数量,信号总是被记录在连续空闲区域中的记录介质上,每个区域的大小等于或大于通常设置为1分钟的预定记录/重放时间长度。 如果需要将具有小于预定记录/重放时间长度的长度的附加信号插入到已经被现有信号占据的区域中的插入点中,则具有等于或大于预定记录/重放时间长度的尺寸的连续空闲区域 记录/播放时间长度被新分配给附加信号。 然后将附加信号记录在空闲区域中,而不是插入插入点。 由于空闲区域的尺寸大于附加信号的长度,所以剩余的空闲区域被填充有与插入点相邻的现有信号的一部分。