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1. 发明授权

US5278658A Image reading apparatus having a function for correcting dark signals generated in a photoelectric conversion element 失效
标题翻译：具有用于校正在光电转换元件中产生的暗信号的功能的图像读取装置
公开(公告)号：US5278658A
公开(公告)日：1994-01-11
申请号：US699597
申请日：1991-05-14
申请人： Osamu Takase
发明人： Osamu Takase
IPC分类号： H04N1/401 , H04N1/028 , H04N5/335 , H04N5/361 , H04N5/369 , H04N5/372 , H04N5/378
CPC分类号： H04N5/361 , H04N5/3692
摘要： An image reading apparatus includes a photoelectric conversion element which has a plurality of cells, the plurality of cells including shielded cells which are optically shielded so that each shielded cell outputs only the dark signal, a dark signal data generating system for generating dark signal data for each cell of the photoelectric conversion element, the dark signal data corresponding to a ratio of an image signal output from each cell under a no-exposure condition to a first reference dark signal which is obtained based on the dark signals output from the shielded cells under the no-exposure condition, a dark signal data memory for storing the dark signal data for each cell, a dark signal component generating system for generating a dark signal component for each cell, the dark signal component corresponding to a product of the dark signal data for each cell multiplied by a second reference dark signal which is obtained based on the dark signals output from the shielded cells under the exposure condition, and a subtracter for subtracting the dark signal component from an image signal obtained for each corresponding cell under the exposure condition.
摘要翻译：图像读取装置包括具有多个单元的光电转换元件，所述多个单元包括被屏蔽的屏蔽单元，以使得每个屏蔽单元仅输出暗信号;暗信号数据生成系统，用于产生暗信号数据，光电转换元件的每个单元，暗信号数据对应于在无曝光条件下从每个单元输出的图像信号与根据从屏蔽单元输出的暗信号获得的第一参考暗信号的比率无曝光条件，用于存储每个单元的暗信号数据的暗信号数据存储器，用于为每个单元产生暗信号分量的暗信号分量产生系统，对应于暗信号数据的乘积的暗信号分量对于每个单元乘以基于从屏蔽单元输出的暗信号获得的第二参考暗信号以及用于在曝光条件下从针对每个对应的单元获得的图像信号中减去暗信号分量的减法器。

2. 发明授权

US5251272A Image signal processing method and apparatus with correction for a secondary light source effect 失效
标题翻译：具有二次光源效果校正的图像信号处理方法和装置
公开(公告)号：US5251272A
公开(公告)日：1993-10-05
申请号：US724165
申请日：1991-07-01
申请人： Makoto Hino , Osamu Takase
发明人： Makoto Hino , Osamu Takase
IPC分类号： G06T1/00 , H04N1/40 , H04N1/401 , G06K9/40
CPC分类号： H04N1/401 , H04N1/40
摘要： A method and an apparatus for processing an image signal generated in an image reading apparatus comprising a light source for illuminating a document, an optical system, and an optical detector for detecting a light which is reflected at a reading point on the document and passes through the optical system and for outputting an image signal corresponding to an amount of light detected thereby are disclosed. A secondary light source effect function which describes a degree that a light reflected at each point other than the reading point on the document affects the image signal corresponding to the reading point is obtained. The image signal output from the optical detector is corrected based on the secondary light source effect function and an image signal corresponding to each point so that a component corresponding to a light which is reflected at each point other than the reading point and affects the image signal corresponding to the reading point is eliminated from the image signal.
摘要翻译：一种用于处理图像读取装置中生成的图像信号的方法和装置，包括用于照射文件的光源，光学系统和光学检测器，用于检测在文件上的读取点反射并通过的光公开了用于输出对应于由此检测到的光量的图像信号的光学系统。获得二次光源效应函数，其描述了在文件上的读取点以外的每个点处反射的光影响对应于读取点的图像信号的程度。从光检测器输出的图像信号基于二次光源效应函数和对应于每个点的图像信号来校正，使得与在读取点以外的每个点反射的光对应的分量影响图像信号从图像信号中消除对应于读取点的读取点。

3. 发明授权

US5034198A Ozone generator and ozone generating method 失效
标题翻译：臭氧发生器和臭氧发生方法
公开(公告)号：US5034198A
公开(公告)日：1991-07-23
申请号：US461002
申请日：1990-01-04
申请人： Nobuyoshi Kaiga , Osamu Takase
发明人： Nobuyoshi Kaiga , Osamu Takase
IPC分类号： C01B13/11
CPC分类号： C01B13/11 , C01B2201/20 , C01B2201/24
摘要： An ozone generator includes a feed gas chamber for receiving a feed gas, an ozone gas chamber for receiving a produced ozone gas, a tubular electrode for connecting the two chambers, a discharge tube inserted in the tubular electrode, and a power source unit for applying a voltage having a frequency higher than a frequency of commercial power between a metal film and the tubular electrode to generate a discharge having a frequency higher than the frequency of commercial power. The discharge tube is constituted by a glass tube and the metal film coated on the inner surface of the glass tube. The metal film is made of stainless steel in order to improve an ozone resistance and a nitric acid resistance and is formed to have a thickness of 2,0000 .ANG. to 5,000 .ANG. in order to prevent generation of sparks and to enhance a thermal shock resistance.
摘要翻译：臭氧发生器包括用于接收进料气体的进料气室，用于接收产生的臭氧气体的臭氧气体室，用于连接两个室的管状电极，插入管状电极中的放电管，以及用于施加的电源单元具有高于金属膜和管状电极之间的商业功率频率的频率的电压，以产生具有高于商业功率频率的频率的放电。放电管由玻璃管和涂覆在玻璃管的内表面上的金属膜构成。金属膜由不锈钢制成，以提高耐臭氧性和耐硝酸性，并且为了防止产生火花和提高耐热冲击性而形成厚度为20000至5000埃的范围。

4. 发明授权

US4991026A Chrominance signal reproducing apparatus for video tape recorder 失效
标题翻译：用于录像机的色度信号再现装置
公开(公告)号：US4991026A
公开(公告)日：1991-02-05
申请号：US243849
申请日：1988-09-13
申请人： Osamu Takase , Hikaru Masui , Shigeyuki Itoh , Yoshizumi Watatani
发明人： Osamu Takase , Hikaru Masui , Shigeyuki Itoh , Yoshizumi Watatani
IPC分类号： H04N9/79 , H04N9/84 , H04N9/898
CPC分类号： H04N9/84 , H04N9/7917 , H04N9/898
摘要： A magnetic recording and reproducing apparatus for eliminating the crosstalk component from an adjacent track of a tape of a VTR and obtaining a high picture quality. Chrominance signals in the base band which are produced by a low frequency conversion chroma signal are supplied to comb-shaped filters which are used in the magnetic recording and reproducing apparatus. The chrominance signals in the base band are obtained by generating carriers synchronized with a burst signal of the low frequency conversion chroma signal including the jitter component upon reproduction and by multiplying the carriers and the low frequency conversion chroma signal. A burst signal portion between the resultant chrominance signals in the base band is applied as a frequency control input signal to an oscillator as the carrier generating source, so that desired carriers are derived. Thus, the frequency fluctuation is eliminated from the converted chrominance signal in the base band and the high picture quality can be realized.

5. 发明授权

US5376966A Image reading apparatus having a function for correcting dark signals generated in a photoelectric conversion element 失效
公开(公告)号：US5376966A
公开(公告)日：1994-12-27
申请号：US128191
申请日：1993-09-29
申请人： Osamu Takase
发明人： Osamu Takase
IPC分类号： H04N1/401 , H04N1/028 , H04N5/335 , H04N5/361 , H04N5/369 , H04N5/372 , H04N5/378
CPC分类号： H04N5/361 , H04N5/3692
摘要： An image reading apparatus includes a photoelectric conversion element which has a plurality of cells, the plurality of cells including shielded cells which are optically shielded so that each shielded cell outputs only the dark signal, a dark signal data generating system for generating dark signal data for each cell of the photoelectric conversion element, the dark signal data corresponding to a ratio of an image signal output from each cell under a no-exposure condition to a first reference dark signal which is obtained based on the dark signals output from the shielded cells under the no-exposure condition, a dark signal data memory for storing the dark signal data for each cell, a dark signal component generating system for generating a dark signal component for each cell, the dark signal component corresponding to a product of the dark signal data for each cell multiplied by a second reference dark signal which is obtained based on the dark signals output from the shielded cells under the exposure condition, and a subtracter for subtracting the dark signal component from an image signal obtained for each corresponding cell under the exposure condition.

6. 发明授权

US5249068A Image reading apparatus 失效
标题翻译：图像读取装置
公开(公告)号：US5249068A
公开(公告)日：1993-09-28
申请号：US631912
申请日：1990-12-21
申请人： Osamu Takase
发明人： Osamu Takase
IPC分类号： G06T1/00 , H04N1/19 , H04N1/401
CPC分类号： H04N1/401
摘要： An image reading apparatus having a line sensor for supplying an image signal in accordance with a brightness of a specified region of an original document along a main scan line, the line sensor having a plurality of photoelectric conversion elements aligned along a main scan line. The image reading apparatus comprises a sampling part for sampling and holding a level of a reference signal initially outputted by the line sensor when a reference board is scanned, a correction part for calculating a correction quantity according to a level of a signal outputted by the photoelectric conversion elements when the specified region of the original document is scanned, a subtraction part for subtracting the correction quantity from the level of the reference signal when the reference board is scanned, to supply a corrected reference signal according to the brightness of the specified region of the original document, and a normalization part for normalizing a level of an image signal outputted by the photoelectric conversion elements when the original document is scanned, based on a level of the corrected reference signal from the subtraction part.
摘要翻译：一种图像读取装置，具有线传感器，用于根据主扫描线的原稿的指定区域的亮度提供图像信号，该线传感器具有沿着主扫描线排列的多个光电转换元件。图像读取装置包括：采样部，用于在扫描参考板时采样并保持由线传感器初始输出的参考信号的电平;校正部，用于根据光电输出的信号的电平计算校正量当扫描原始文档的指定区域时的转换元件，当扫描参考板时从参考信号的电平减去校正量的减法部分，以根据指定区域的亮度提供校正的参考信号原始文件和归一化部分，用于在扫描原始文档时基于来自减法部分的校正参考信号的电平来归一化由光电转换元件输出的图像信号的电平。

7. 发明授权

US4612585A Chrominance signal recording and reproducing apparatus 失效
标题翻译：色度信号记录和再现设备
公开(公告)号：US4612585A
公开(公告)日：1986-09-16
申请号：US530629
申请日：1983-09-09
申请人： Osamu Takase , Tomomitsu Kuroyanagi
发明人： Osamu Takase , Tomomitsu Kuroyanagi
IPC分类号： H04N9/793 , H04N9/83 , H04N5/76
CPC分类号： H04N9/83 , H04N9/7936
摘要： A chrominance signal recording and reproducing circuit for a video tape recorder in which a frequency-modulated luminance signal and a low-frequency converted chrominance signal are mixed to be recorded and reproduced. A sideband emphasis type dynamic emphasis circuit composed of a diode limiter circuitry and an LC trap circuitry is provided in a recording system for recording the chrominance signal, while a sideband deemphasis circuit composed of at least a diode limiter circuitry and an LC trap circuitry is provided in a chrominance signal reproducing system. A circuit configuration is adopted in which the functions of the emphasis circuit and the deemphasis circuit are exchangeably performed by a common circuit.
摘要翻译：用于混合记录和再现调频亮度信号和低频转换色度信号的磁带录像机的色度信号记录和再现电路。在用于记录色度信号的记录系统中提供由二极管限制器电路和LC陷波电路组成的边带强调型动态加重电路，同时提供由至少二极管限制器电路和LC陷波电路构成的边带去加重电路在色度信号再现系统中。采用电路结构，其中加重电路和去加重电路的功能由公共电路交换执行。

8. 发明授权

US5390032A Image reader having photoelectric conversion line sensors 失效
标题翻译：图像读取器具有光电转换线传感器
公开(公告)号：US5390032A
公开(公告)日：1995-02-14
申请号：US905883
申请日：1992-06-26
申请人： Norihiro Yamamoto , Osamu Takase
发明人： Norihiro Yamamoto , Osamu Takase
IPC分类号： H04N1/193 , H04N1/48 , H04N1/04
CPC分类号： H04N1/482 , H04N1/193
摘要： An image reader includes a fight source projecting a light onto an original, and first and second photoelectric conversion elements arranged so that the first photoelectric conversion element reads first half of the original in a scanning direction and the second photoelectric conversion element reads the second half and that a first read signal of the first half of the original is transferred, starting from a center of the original, from the first photoelectric conversion element and a second read signal of the second half of the original is transferred, starting from the center, from the second photoelectric conversion element. An imaging lens projects a reflected light reflected by the original onto the two photoelectric conversion elements. A driver circuit drives the first and second photoelectric conversion elements so that the first and second read signals are output from the first and second photoelectric conversion elements, respectively. A signal processing unit processes the first and second read signals so that a finalized read signal containing information on pixels arranged in the scanning line is generated each time the original is scanned in the scanning direction.
摘要翻译：图像读取器包括将光投射到原稿上的第一和第二光电转换元件，第一和第二光电转换元件被布置成使得第一光电转换元件沿扫描方向读取原稿的前半部分，第二光电转换元件读取第二半部分，原稿的前半部分的第一读取信号从原稿的中心开始从第一光电转换元件传输，并且原稿的后半部分的第二读取信号从中心开始被传送第二光电转换元件。成像透镜将由原稿反射的反射光投影到两个光电转换元件上。驱动电路驱动第一和第二光电转换元件，使得第一和第二读取信号分别从第一和第二光电转换元件输出。信号处理单元处理第一和第二读取信号，使得每次在扫描方向上扫描原稿时，产生包含布置在扫描行中的像素的信息的最终读取信号。

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