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1. 发明授权

US4205347A Television signal determination in an automatic tuning system 失效
标题翻译：自动调谐系统中的电视信号确定
公开(公告)号：US4205347A
公开(公告)日：1980-05-27
申请号：US900246
申请日：1978-04-26
申请人： Nobuo Minoura , Isao Matsumura , Yasukazu Yoshinaga , Takao Abumi , Kazuhiro Nakai
发明人： Nobuo Minoura , Isao Matsumura , Yasukazu Yoshinaga , Takao Abumi , Kazuhiro Nakai
IPC分类号： H03J7/18 , H04N5/50 , H04N5/44
CPC分类号： H04N5/50 , H03J7/18
摘要： A television signal determination circuit is associated with an automatic tuning system, which automatically tunes a television set to local channels, in order to determine whether received signals are desired television signals. The television signal determination circuit comprises a first counter means for counting received synchronizing signals for a predetermined period of time, a second counter means for counting reference clock signals for the predetermined period of time, and a determination means for determining whether the synchronizing signals are received by a predetermined number within the predetermined period of time by comparing output signals from the first and second counter means.
摘要翻译：电视信号确定电路与自动调谐系统相关联，该自动调谐系统将电视机自动调谐到本地通道，以便确定接收的信号是否是期望的电视信号。电视信号判定电路包括：第一计数器装置，用于对预定时间段的接收到的同步信号进行计数;第二计数器装置，用于在预定时间段内对参考时钟信号进行计数;以及确定装置，用于确定是否接收到同步信号通过比较来自第一和第二计数器装置的输出信号，在预定时间段内预定数量。

2. 发明授权

US4236182A Automatic pre-programming system for TV receivers 失效
标题翻译：电视接收机的自动预编程系统
公开(公告)号：US4236182A
公开(公告)日：1980-11-25
申请号：US900199
申请日：1978-04-26
申请人： Nobuo Minoura , Isao Matsumura , Yasukazu Yoshinaga , Takao Abumi , Kazuhiro Nakai
发明人： Nobuo Minoura , Isao Matsumura , Yasukazu Yoshinaga , Takao Abumi , Kazuhiro Nakai
IPC分类号： H03J5/02 , H03J7/28 , H04N5/44
CPC分类号： H03J7/28 , H03J5/0263
摘要： An automatic tuning scheme for use in TV receivers includes a start/stop circuit which creates a search start signal and a search stop signal upon the receipt of a search start instruction and a detected incoming signal, respectively, a tuning voltage generator which generates a gradually varying tuning voltage under control of the search start signal and search stop signal, and a memory circuit for storing the tuning voltage from the generator when desired. The tuning voltage stored in the memory circuit is supplied to a tuner including a well known voltage-sensitive capacitance diode.
摘要翻译：一种用于TV接收机的自动调谐方案，包括：启动/停止电路，分别在接收到搜索开始指令和检测到的输入信号时产生搜索开始信号和搜索停止信号;调谐电压发生器，逐渐产生在搜索开始信号和搜索停止信号的控制下改变调谐电压，以及存储电路，用于在需要时存储来自发生器的调谐电压。存储在存储器电路中的调谐电压被提供给包括公知的电压敏感电容二极管的调谐器。

3. 发明授权

US07349154B2 Reflection type screen 有权
标题翻译：反射型屏幕
公开(公告)号：US07349154B2
公开(公告)日：2008-03-25
申请号：US10833764
申请日：2004-04-27
申请人： Tomoyuki Aiura , Shuichi Yoshinaka , Takao Abumi , Haruhisa Takiguchi
发明人： Tomoyuki Aiura , Shuichi Yoshinaka , Takao Abumi , Haruhisa Takiguchi
IPC分类号： G03B21/56 , G03B21/60
CPC分类号： G03B21/56
摘要： The reflection type screen comprises a reflection layer which is disposed on the opposite side to the projected light incident side of the screen, a horizontal view angle increasing layer which is disposed on the light incident side of the reflection layer, and a diffusion layer which is disposed on the light incident side of the horizontal view angle increasing layer. The horizontal view angle increasing layer has an array of convex ridges which are raised in a rear direction of the screen. Since the longitudinal direction of the ridges is aligned with the vertical direction of the screen, the view angle characteristics of the screen in a horizontal direction are improved and the diffusion characteristics of the screen in a vertical direction can be suppressed for preventing external disturbing light from an upper illumination light from being reflected toward the observers.
摘要翻译：反射型屏幕包括设置在与屏幕的投射光入射侧相反的一侧的反射层，设置在反射层的光入射侧的水平视角增加层和扩散层，设置在水平视角增加层的光入射侧。水平视角增加层具有在屏幕的后方向上升起的凸脊阵列。由于脊的纵向与屏幕的垂直方向一致，所以屏幕在水平方向上的视角特性得到改善，并且可以抑制屏幕在垂直方向上的扩散特性，以防止屏幕的外部干扰光上部照明光被朝向观察者反射。

4. 发明授权

US4639768A Video signal superimposing device 失效
标题翻译：视频信号叠加装置
公开(公告)号：US4639768A
公开(公告)日：1987-01-27
申请号：US656757
申请日：1984-10-01
申请人： Atsushi Ueno , Takao Abumi
发明人： Atsushi Ueno , Takao Abumi
IPC分类号： H04N5/278 , H04N5/445 , H04N9/00 , H04N9/74 , H04N9/75 , H04N9/76
CPC分类号： H04N9/76
摘要： A video signal superimposing device for superimposing and clearly displaying video signals produced from at least two discrete systems includes an input terminal for inputting a color complex video signal, a separation circuit for separating a first brightness signal and a first chroma signal from the color complex video signal, a first generator for generating a second brightness signal, a first mixer circuit for mixing the second brightness signal and the first brightness signal separated by the separation circuit, a second generator for generating a second chroma signal, a second mixer circuit for mixing the second chroma signal and the first chroma signal separated by the separation circuit, and a third mixer circuit for mixing the mixed brightness signal applied from the first mixer circuit and the mixed chroma signal applied to the second mixer circuit.
摘要翻译：一种用于叠加和清晰地显示由至少两个离散系统产生的视频信号的视频信号叠加装置，包括用于输入彩色复合视频信号的输入端，用于从彩色复合视频中分离第一亮度信号和第一色度信号的分离电路信号，用于产生第二亮度信号的第一发生器，用于混合第二亮度信号的第一混频器电路和由分离电路分离的第一亮度信号，用于产生第二色度信号的第二发生器，用于混合第二亮度信号的第二混频器电路，第二色度信号和由分离电路分离的第一色度信号;以及第三混频器电路，用于混合从第一混频器电路施加的混合亮度信号和施加到第二混频器电路的混合色度信号。

5. 发明授权

US5021873A Image signal processor 失效
标题翻译：图像信号处理器
公开(公告)号：US5021873A
公开(公告)日：1991-06-04
申请号：US465635
申请日：1990-01-22
申请人： Takao Abumi
发明人： Takao Abumi
IPC分类号： H04N1/64 , H04N5/44
CPC分类号： H04N21/4143 , H04N1/646 , H04N1/648 , H04N5/4448
摘要： An image signal processor includes a memory device for storing an image signal representative of a picture during one field period, an operating unit for generating a READ-OUT command necessary to read out contents stored in the memory device, a selector for selectively switching the memory device between a WRITE-IN READY condition and a READ-OUT READY condition, and a switching control unit for generating a control signal necessary to control the switching operation of the selector. The switching control unit is adapted to receive the READ-OUT command and a vertical synchronizing signal included in a composite video signal. The selector performs the switching operation in synchronism with the initial vertical synchronizing signal applied immediately after the READ-OUT command has been inputted.

6. 发明授权

US5365346A Image signal processor generating reduced memory consumption still images yet preserving image quality 失效
标题翻译：图像信号处理器产生减少的存储器消耗静止图像，同时保持图像质量
公开(公告)号：US5365346A
公开(公告)日：1994-11-15
申请号：US969443
申请日：1992-10-30
申请人： Takao Abumi
发明人： Takao Abumi
IPC分类号： H04N1/64 , H04N5/44 , H04N9/64 , H04N21/4143 , H04N5/14
CPC分类号： H04N21/4143 , H04N1/646 , H04N9/64 , H04N5/4448
摘要： An intermediate gradation generator filters out a direct current component of a clock pulse and then superimposes the filtered clock pulse on average levels of a luminance signal.
摘要翻译：中间灰度发生器滤除时钟脉冲的直流分量，然后将经滤波的时钟脉冲叠加在亮度信号的平均电平上。

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