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    • 5. 发明授权
    • Gradation correction apparatus
    • 梯度校正装置
    • US07034896B2
    • 2006-04-25
    • US10343512
    • 2002-05-30
    • Keiichi ItoAtsuhisa Kageyama
    • Keiichi ItoAtsuhisa Kageyama
    • H04N9/69
    • H04N5/202G06T5/009G09G2320/0276H04N5/20
    • The present invention provides a gradation correction device which can perform gradation correction using digital feedback processing, and furthermore, can control the digital feedback processing with high accuracy. The gradation correction device is provided with a correction gain adjustable amount generation circuit (103) and a correction gain generation circuit (104), and the correction gain adjustable amount generation circuit (103) obtains a correction gain adjustable amount which is non-linear in relation to a difference S between a reference luminance level Yb1 and a maximum luminance level, and greater gamma correction is carried out as the value of the difference is larger.
    • 本发明提供了一种可以使用数字反馈处理执行灰度校正的灰度校正装置,并且可以高精度地控制数字反馈处理。 灰度校正装置具有校正增益可调量生成电路(103)和校正增益生成电路(104),校正增益可调量生成电路(103)获得非线性的校正增益可调量 与基准亮度电平Yb 1和最大亮度电平之间的差S的关系以及较大的伽马校正被执行,因为差值越大。
    • 6. 发明授权
    • Air heater with expansion containing electric heater arranged in stages
    • 带有电加热器的空气加热器分阶段布置
    • US06959144B2
    • 2005-10-25
    • US10720274
    • 2003-11-25
    • Yukihiko ShimonomaKeiichi ItoYoshinori FujisawaYoshimune Yamada
    • Yukihiko ShimonomaKeiichi ItoYoshinori FujisawaYoshimune Yamada
    • F24H3/04F24H3/12F24D13/00
    • F24H3/04F24H3/0417F24H3/0488
    • Providing a hot air heater and an expansion in the air blowing passage of the hot air heater and suppressing increases in air trunk resistance even if electric heaters are arranged in this expansion in a plurality of stages prevents increases in the rotation speed of the air blowing fan in order to obtain a target air flow which in turn causes the operating noise to grow louder. Therefore, an expansion 35 was formed along the air blowing passage 32. This expansion 35 has an entrance opening 351 and an exit opening 352 and functions as a storage portion that contains the electric heaters 34. The electric heaters are arranged in a plurality of stages in such a manner as to face said entrance opening and a distance between the entrance opening in the expansion and one of the electric heaters that has a highest wind speed at the entrance opening in the expansion of distances between the entrance opening in the expansion and the respective electric heaters is set farther.
    • 在热空气加热器的空气吹送通道中设置热空气加热器和膨胀,并且即使在多个阶段中在这种膨胀中布置电加热器也能够抑制空气干线电阻的增加,防止了吹风风扇的转速增加 以获得目标空气流,这又导致操作噪声增大。 因此,沿着送风通道32形成有膨胀部35.膨胀部35具有入口351和出口开口部352,作为容纳电加热器34的收容部发挥作用。电加热器配置成多级 以这样的方式,即面对所述入口开口以及在膨胀中的入口之间的距离和膨胀中的入口之间的距离膨胀中的在入口处具有最高风速的电加热器之间的距离, 相应的电加热器设置得更远。
    • 7. 发明申请
    • HYBRID HOT AIR HEATER
    • 混合热空气加热器
    • US20050036770A1
    • 2005-02-17
    • US10676029
    • 2003-10-02
    • Keiichi ItoYoshinori FujisawaYukihiko ShimonomaYoshimune Yamada
    • Keiichi ItoYoshinori FujisawaYukihiko ShimonomaYoshimune Yamada
    • F24H3/04F24H3/12F24C1/00
    • F24H3/04
    • In a configuration of a hybrid hot air heater in which a gas heater unit 2 and an electric heater unit 3 are incorporated into one chassis at the upper part and lower part, respectively, in such a manner that their respective air-blowing systems may be independent of each other, the heater itself is made more compact even with increases in the cross-sectional area of inlets 13a and 13b equipped with anti-dust filters 6a and 6b, respectively. The second inlet 13b of the electric heater unit 3 provided on the chassis 11 is arranged below a gas burner 20 in such a manner as to conserver space and serves as an air inlet passage on the rear side of a housing 211 of a first air-blowing fan 21 that separates the gas heater unit 2 and the electric heater unit 3 from each other.
    • 在混合热风加热器的结构中,其中气体加热器单元2和电加热器单元3分别在上部和下部结合到一个底盘中,使得它们各自的吹气系统可以是 彼此独立,即使分别具有防尘过滤器6a和6b的入口13a和13b的横截面面积增加,加热器本身也变得更紧凑。 设置在底座11上的电加热器单元3的第二入口13b以保持空间的方式设置在气体燃烧器20的下方,并且用作第一空气调节器的壳体211的后侧上的空气入口通道, 将气体加热器单元2和电加热器单元3彼此分离的吹风扇21。
    • 8. 发明授权
    • Linear matrix circuit
    • 线性矩阵电路
    • US06753908B1
    • 2004-06-22
    • US09360391
    • 1999-07-23
    • Hitoshi NakamuraKeiichi Ito
    • Hitoshi NakamuraKeiichi Ito
    • H04N973
    • H04N9/67
    • The invention provides a linear matrix circuit which can control linear conversion of color reproduction with a comparatively small number of parameters, which conform with a feeling of a human being, by means of a circuit of a comparatively small scale using a comparatively simple method. The linear matrix circuit performs linear conversion of color reproduction for use with an image processing apparatus which separates a video signal into three primary color components of red, green and blue, and includes a coefficient conversion section for introducing six coefficients required for the linear conversion of color reproduction from two control parameters.
    • 本发明提供一种线性矩阵电路,其可以使用比较简单的方法利用比较小规模的电路,以相对较少数量的参数来控制颜色再现的线性转换,其符合人的感觉。 线性矩阵电路对与将视频信号分离为红色,绿色和蓝色的三原色成分的图像处理装置一起使用的色彩再现进行线性转换,并且包括系数转换部分,用于将线性转换所需的六个系数 从两个控制参数的颜色再现。