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11. 发明授权

US5043803A Signal processing circuit for a solid-state image pickup device 失效
标题翻译：用于固态图像拾取装置的信号处理电路
公开(公告)号：US5043803A
公开(公告)日：1991-08-27
申请号：US433998
申请日：1989-11-09
申请人： Takashi Asaida
发明人： Takashi Asaida
IPC分类号： H04N5/335 , H04N5/349 , H04N5/357 , H04N5/372 , H04N5/378 , H04N9/04 , H04N9/09
CPC分类号： H04N9/045
摘要： A signal processing circuit of a solid-state imaging device has an image pickup section formed by plural solid-state image sensors including a discrete pixel array. The solid state image sensor for green-color image pickup is arrayed in the image pickup section with a spatial shift equal to one half the pixel pitch from the solid-state image sensors for red-color image pickup and the solid-state image sensors for blue-color image pickup in accordance with the spatial pixel shifting method. An optical low-pass filter having a cut-off frequency equal to fs is provided on the front surfaces of these solid-state image sensors. The green-color image pickup output signal, the red-color image pickup output signal and the blue-color image pickup output signal, produced at the solid state image sensors of the image pickup section, are subjected to A/D conversion, followed by phase processing with the sampling phases of the respective digital signals matched with one another, to produce high-quality image output signals having satisfactory modulation transfer function (MTF) characteristics and containing lesser amounts of aliasing components.

12. 发明授权

US4490738A Digital color camera 失效
标题翻译：数码彩色相机
公开(公告)号：US4490738A
公开(公告)日：1984-12-25
申请号：US391710
申请日：1982-06-24
申请人： Takashi Asaida
发明人： Takashi Asaida
IPC分类号： H04N9/04 , H04N9/64 , H04N9/65 , H04N9/67 , H04N11/04 , H04N11/10 , H04N9/09
CPC分类号： H04N9/64 , H04N9/045
摘要： A digital color camera is disclosed, which includes a circuit for generating first, second and third digital color signals, each at a rate of 4f.sub.sc (where f.sub.sc represents a color subcarrier frequency) from the outputs of first, second and third imagers. A circuit forms a digital luminance signal from the first, second and third digital color signals, and a circuit forms a dot-sequential color difference signal with the first and second digital color difference signals appearing alternately every 1/4f.sub. sc from the first, second and third digital color difference signals and a circuit passes a dot-sequential digital color difference signal through a digital filter so as to limit the band widths of the first and second digital color difference signals and the overall circuit provides improved color TV signals which are formed with simpler circuit means.
摘要翻译：公开了一种数字彩色照相机，其包括用于从第一，第二和第三成像器的输出以4fsc（其中fsc表示彩色副载波频率）的速率产生第一，第二和第三数字彩色信号的电路。 A电路从第一，第二和第三数字彩色信号形成数字亮度信号，并且电路形成点序列色差信号，其中第一和第二数字色差信号每1 / 4fsc交替出现，来自第一，第二和第三数字色差信号，并且电路通过数字滤波器通过点序数字色差信号，以限制第一和第二数字色差信号的带宽，并且整个电路提供形成的改进的彩色TV信号具有更简单的电路装置。

13. 发明授权

US5272524A Solid state camera apparatus with sample rate conversion to D1 and D2 formats 失效
标题翻译：采样率转换为D1和D2格式的固态照相机
公开(公告)号：US5272524A
公开(公告)日：1993-12-21
申请号：US902813
申请日：1992-06-23
申请人： Fumio Nagumo , Takashi Asaida
发明人： Fumio Nagumo , Takashi Asaida
IPC分类号： H04N5/225 , H04N5/335 , H04N5/349 , H04N5/357 , H04N5/372 , H04N5/378 , H04N9/04 , H04N7/01
CPC分类号： H04N9/045 , H04N2209/046
摘要： A solid state camera apparatus converts image signals read from a solid state image-sensing device at a reading clock rate of a first frequency f.sub.CCD to digital video signals at the reading clock rate, converts the resulting digital video signal using a clock signal of a second frequency f.sub.STD [f.sub.STD =f.sub.CCD *n/m (where m and n are positive integers and m>n)] to form digital video signals with a transmission clock rate of the second frequency f.sub.STD, and applies image processing to the digital video signals at the reading clock rate of the first frequency f.sub.CCD so as to form output video signals.

14. 发明授权

US5166782A Video camera 失效
标题翻译：录影机
公开(公告)号：US5166782A
公开(公告)日：1992-11-24
申请号：US714850
申请日：1991-06-13
申请人： Takashi Asaida
发明人： Takashi Asaida
IPC分类号： G11B31/00 , H04N5/232 , H04N5/77 , H04N9/04 , H04N9/808
CPC分类号： G11B31/006 , H04N5/23203 , H04N5/77 , H04N9/045 , H04N9/808
摘要： A video camera having a camera head unit connected to a camera control unit converts the outputs of solid-state imaging devices into digital signals, and supplies digital three-color signals and a digital composite video signal, as well as analog three-color signals, an analog composite video signal, and analog component video signals, to respective output terminals.

15. 发明授权

US4547796A Digital color video signal encoder 失效
标题翻译：数字彩色视频信号编码器
公开(公告)号：US4547796A
公开(公告)日：1985-10-15
申请号：US506699
申请日：1983-06-22
申请人： Seiichiro Iwase , Takashi Asaida , Fumio Nagumo
发明人： Seiichiro Iwase , Takashi Asaida , Fumio Nagumo
IPC分类号： H04N9/65 , H04N9/64 , H04N9/72 , H04N9/32
CPC分类号： H04N9/64
摘要： A digital encoder for use with digital luminance and chrominance signals having black levels includes a level adjusting circuit which adjusts the chrominance and luminance signals to establish a predetermined relationship between the black levels of the level-adjusted chrominance and luminance signals, a chrominance signal with a predetermined relatively large dynamic range thereof modulating circuit which generates a modulated chrominance signal from the level-adjusted chrominance signal, an adding circuit which receives the modulated chrominance signal and the level-adjusted luminance signal and provides an encoded color video signal therefrom, an attenuator circuit which attenuates the encoded color video signal and a circuit for combining sync and burst signals with the attenuated encoded color video signal and with a predetermined pedestal level to provide a composite color video signal within the predetermined dynamic range.
摘要翻译：用于具有黑电平的数字亮度和色度信号的数字编码器包括电平调整电路，其调整色度和亮度信号，以建立电平调整色度和亮度信号的黑电平之间的预定关系，色度信号具有从电平调整色度信号产生调制色度信号的预定相对大的动态范围的调制电路;加法电路，接收经调制的色度信号和电平调整的亮度信号，并从其提供编码的彩色视频信号;衰减器电路其衰减编码的彩色视频信号，以及用于将同步和脉冲串信号与衰减的编码彩色视频信号和预定基准电平组合的电路，以在预定动态范围内提供复合彩色视频信号。

16. 发明授权

US4355327A Digital color encoder 失效
标题翻译：数码彩色编码器
公开(公告)号：US4355327A
公开(公告)日：1982-10-19
申请号：US231440
申请日：1981-02-04
申请人： Fumio Nagumo , Takashi Asaida
发明人： Fumio Nagumo , Takashi Asaida
IPC分类号： H04N9/65 , H04N11/14 , H04N9/07 , H04N9/18
CPC分类号： H04N11/143
摘要： A digital color encoder for a television camera in which during digitally modulating a carrier of 3f.sub.sc (f.sub.sc is a color subcarrier frequency) with a digital color signal which is obtained by sampling input video information data at a sampling pulse rate having a frequency of 3(n/m)f.sub.sc (with m and n being relatively small integers) at N line the digital color signal is amplitude modulated by 3-phase modulation vectors each having a phase difference of 2/3.pi. from each other so as to produce a digitally modulated color signal. At N+1 line, the digital color signal is amplitude modulated by the 3-phase modulation vectors each having a phase opposite to that at the N line so as to produce an output of N+1 line which is then phase inverted to provide a digital modulated color signal. Thus, a digital color television signal with color phase having the standard television signal format is obtained.
摘要翻译：一种用于电视摄像机的数字彩色编码器，其中以通过以3的频率采样输入视频信息数据获得的数字彩色信号对3fsc（fsc是彩色副载波频率）的载波进行数字调制 n / m）fsc（其中m和n是相对较小的整数），在N行，数字彩色信号由三相调制矢量进行幅度调制，每个相位调制矢量彼此之间具有2/3 pi的相位差，从而产生数字调制色信号。在N + 1线上，数字彩色信号被三相调制矢量进行幅度调制，每个三相调制矢量具有与N线相反的相位，从而产生N + 1线的输出，然后将其相位反转以提供数字调制色信号。因此，获得具有标准电视信号格式的具有彩色相位的数字彩色电视信号。

17. 发明授权

US5659356A Digital video camera apparatus and aspect ratio converting apparatus 失效
标题翻译：数字摄像机和纵横比变换装置
公开(公告)号：US5659356A
公开(公告)日：1997-08-19
申请号：US600947
申请日：1996-02-21
申请人： Takashi Asaida , Takashi Kameyama
发明人： Takashi Asaida , Takashi Kameyama
IPC分类号： H04N5/262 , H04N5/44 , H04N7/01 , H04N5/228 , H04N11/20
CPC分类号： H04N7/0122 , H04N5/2628 , H04N7/0102 , H04N7/0105
摘要： In a time axis converting section 10, time axis conversion processing of 4/3 times is implemented to a digital picture signal of a first data rate indicating an image of a first aspect ratio (16:9) to thereby generate a digital picture signal of a second data rate indicating an image of a second aspect ratio (4:3). In a data rate converting section 20, data rate conversion processing of conversion ratio of 3:4 is implemented to the digital picture signal of the second data rate to thereby generate, from the digital picture signal of the first data rate indicating the image of the first aspect ratio (16:9), a digital picture signal of a first data rate indicating the image of the second aspect ratio (4:3).
摘要翻译： PCT No.PCT / JP95 / 01287第 371日期1996年2月21日 102（e）日期1996年2月21日PCT提交1995年6月28日PCT公布。公开号WO96 / 01026 PCT 日期：1996年1月11日在时间轴转换部10中，对表示第一宽高比（16:9）的图像的第一数据速率的数字图像信号实现4/3次的时间轴转换处理，从而生成指示第二宽高比（4:3）的图像的第二数据速率的数字图像信号。在数据速率转换部分20中，对第二数据速率的数字图像信号实现3:4的转换比率的数据速率转换处理，从而产生指示图像的第一数据速率的数字图像信号第一长宽比（16：9），表示第二宽高比（4:3）的图像的第一数据速率的数字图像信号。

18. 发明授权

US5410365A Video camera with coarse analog and fine digital black level adjustment 失效
标题翻译：具有粗略模拟和精细数字黑色电平调整的摄像机
公开(公告)号：US5410365A
公开(公告)日：1995-04-25
申请号：US40286
申请日：1993-03-30
申请人： Koichi Nakamura , Takashi Asaida
发明人： Koichi Nakamura , Takashi Asaida
IPC分类号： H04N9/64 , H04N9/72 , H04N5/16 , H04N5/235
CPC分类号： H04N9/64 , H04N9/72
摘要： In an image pick up device, signal level of red, green and blue color signals is coarsely adjusted in a signal processing circuit, and then a black level of video signal is finely adjusted in a digital signal processing circuit, thereby being capable of easily adjusting the black level and improving the accuracy of black level adjustment.
摘要翻译：在图像拾取装置中，在信号处理电路中粗略地调整红，绿，蓝信号的信号电平，然后在数字信号处理电路中微调视频信号的黑电平，从而能够容易地调整黑电平提高黑电平调整精度。

19. 发明授权

US5216496A Digital color television camera apparatus for selectively outputting component or composite PAL/NTSC signals 失效
标题翻译：数字彩色电视摄像机，用于选择性输出组件或复合PAL / NTSC信号
公开(公告)号：US5216496A
公开(公告)日：1993-06-01
申请号：US844536
申请日：1992-03-02
申请人： Kazuyoshi Miyamoto , Takashi Asaida
发明人： Kazuyoshi Miyamoto , Takashi Asaida
IPC分类号： H04N9/04 , H04N11/04
CPC分类号： H04N11/048 , H04N9/045
摘要： Digital color television camera apparatus including an encoder for selectively producing either a digital component video signal or a digital composite video signal in accordance with first or second television standards (e.g. NTSC or PAL) by encoding digital primary color image signals in a first mode to produce digital component video signals and in a second mode to produce digital composite video signals. The encoder includes a matrix for producing digital color difference signals at a clock rate equal to the digital sampling clock rate 2f.sub.s and a down sampler for downsampling the digital color difference signals to reduce the clock rate. A digital low pass filter limits the frequency band of a down-sampled color difference signal by providing predetermined selected attenuation at preestablished frequencies of the down-sampled digital color difference signal. The encoder also includes a level setter for establishing predetermined quantizing values to represent respective reference signal levels of the digital component video signal when the encoder operates in its first mode, and for establishing different predetermined quantizing values to represent reference levels of the digital composite video signal when the encoder operates in its second mode.

20. 发明授权

US4943850A Apparatus for limiting the output signal frequency band of an optical sensor 失效
标题翻译：用于限制光学传感器的输出信号频带的装置
公开(公告)号：US4943850A
公开(公告)日：1990-07-24
申请号：US256558
申请日：1988-10-12
申请人： Takashi Asaida
发明人： Takashi Asaida
IPC分类号： H04N5/217 , H04N5/335 , H04N5/357 , H04N5/372 , H04N5/378 , H04N9/04
CPC分类号： H04N9/045
摘要： A digital video color camera having three solid-state image sensing devices and an analog-to-digital converter that converts the signal from the image sensing devices to a digital signal and a digital signal processing circuit that processes the output of the analog-to-digital converter further includes a clock generator that generates a first sampling clock signal used to drive the solid-state image sensing devices and a second clock signal having a frequency (f2) that is higher than the first frequency (f1) used to drive the digital signal processing circuit. An optical low-pass filter and an electrical low-pass filter are provided between the image sensing devices and the analog-to-digital converter in one embodiment, and in another embodiment the electrical low-pass filter is after the analog-to-digital converter. The optical low-pass filter has a frequency characteristic chosen to depress the frequency band component between the frequencies f1-1/2f2 and f1. The electrical low-pass filter, on the other hand, is chosen to have a frequency characteristic to depress a frequency band component higher than the frequency 1/2f2.
摘要翻译：具有三个固态图像感测装置和将来自图像感测装置的信号转换成数字信号的模数转换器的数字视频彩色相机和数字信号处理电路，数字信号处理电路处理模拟 - 数字转换器还包括产生用于驱动固态图像感测装置的第一采样时钟信号的时钟发生器和具有高于用于驱动数字信号的第一频率（f1）的频率（f2）的第二时钟信号信号处理电路。在一个实施例中，在图像感测装置和模拟 - 数字转换器之间提供光学低通滤波器和电气低通滤波器，在另一个实施例中，电气低通滤波器在模数转换器转换器。光学低通滤波器具有选择的频率特性来压缩频率f1-1 / 2f2和f1之间的频带分量。另一方面，电气低通滤波器被选择为具有降低频率分量高于频率1 / 2f2的频率特性。

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