-
公开(公告)号：US5003381A
公开(公告)日：1991-03-26
申请号：US797246
申请日：1985-11-12
申请人： Eduard Wagensonner
发明人： Eduard Wagensonner
摘要： The transparencies of an original for the primary colors are measured at a series of discrete points. The transparency values are processed to adjust for the characteristics of the copy material and the characteristics of the light source used to form an image of the original on the copy material. The light source is a cathode ray tube which generates an image forming beam having a Gaussian intensity distribution with a maximum at the longitudinal axis of the beam. The copy material is a hard copy material having three layers each of which is sensitized to light of a different primary color. Each layer responds to light of the corresponding color having an intensity in excess of a corresponding threshold level but exhibits no response to light having an intensity below this level. An image of the original is formed on the copy material point-by-point using the image forming beam from the cathode ray tube. The size of each image point depends upon the intensity of the beam relative to the threshold levels. By regulating the intensity of the beam on the basis of the adjusted transparency values of the original, the sizes of the image points are such that the tones of the image correspond to those of the original.
摘要翻译： 用于原色的原稿的透明度在一系列离散点处测量。 处理透明度值以调整复印材料的特性和用于在复印材料上形成原稿的图像的光源的特性。 光源是阴极射线管，其产生在光束的纵向轴线处具有最大值的高斯强度分布的成像光束。 复印材料是具有三层的硬拷贝材料，每层具有不同原色的光敏感。 每个层对具有超过相应阈值水平的强度的对应颜色的光进行响应，但对强度低于该水平的光没有响应。 使用来自阴极射线管的成像光束逐点地在复制材料上形成原稿的图像。 每个图像点的大小取决于光束相对于阈值水平的强度。 通过基于调整的原稿的透明度值来调节光束的强度，图像点的大小使得图像的色调与原稿的色调相对应。
-
22.发明授权Method of electronically improving the sharpness and contrast of a colored image for copying 失效电子提高彩色图像复制的清晰度和对比度的方法
公开(公告)号：US4812903A
公开(公告)日：1989-03-14
申请号：US85942
申请日：1987-08-14
IPC分类号： H04N1/04 , G06T1/00 , H04N1/409 , H04N1/46 , H04N1/48 , H04N1/60 , H04N9/68 , G03F3/08 , H04N9/64
CPC分类号： H04N1/6027
摘要： A colored original to be reproduced is scanned point-by-point in each of the three primary colors. The resulting imaging signals are processed to generate a luminance signal and a pair of chrominance signals. The luminance signal is branched into a high-pass filter channel and a low-pass filter channel. The high-pass portion of the luminance signal is amplified in accordance with a sublinear characteristic function which causes signals of small amplitude to be amplified to a greater degree than signals of large amplitude. The low-pass portion of the luminance signal is modified per a non-linear characteristic gradation function. The thus-modified high-pass and low-pass portions of the luminance signal are added to yield an enhanced luminance signal. The enhanced luminance signal is divided by the original luminance signal and each of the chrominance signals is multiplied by the resulting quotient. This automatially compensates for the changes in color saturation which accompany changes in brightness. After the multiplication, the chrominance signals are amplified in accordance with a sublinear characteristic function which causes signals of small amplitude to be amplified to a greater degree than signals of large amplitude. This characteristic function further has a form such that no additional ampification takes place beyond a predetermined threshold limit.
摘要翻译： 要再现的彩色原稿逐点扫描三种基色中的每一种。 所得到的成像信号被处理以产生亮度信号和一对色度信号。 亮度信号被分支为高通滤波器通道和低通滤波器通道。 亮度信号的高通部分根据使小幅度信号被放大到比较大幅度的信号更大程度的子线性特征函数被放大。 根据非线性特征灰度函数修改亮度信号的低通部分。 增加亮度信号的这样修正的高通部分和低通部分以产生增强的亮度信号。 增强的亮度信号被原始亮度信号除以，并且每个色度信号乘以所得到的商。 这会自动补偿颜色饱和度随着亮度变化的变化。 在相乘之后，色度信号根据使得小幅度信号被放大到比较大振幅的信号更大程度的子线性特征函数被放大。 该特征功能还具有这样的形式，使得不超过预定阈值极限进行额外的放大。
-
公开(公告)号：US4652929A
公开(公告)日：1987-03-24
申请号：US786311
申请日：1985-10-10
申请人： Otto Stemme , Eduard Wagensonner
发明人： Otto Stemme , Eduard Wagensonner
CPC分类号： H04N1/486 , H04N1/4092
摘要： A method of producing a video picture of an image comprises the steps of lighting the image at a light level equal to about a predetermined small fraction of the light level necessary to produce picture-element signals of an amplitude sufficient to process. The thus lighted image is then scanned and electrooptically reduced to a succession of sets of analog picture-element signals a predetermined number N of times, the number N being equal to the inverse of the predetermined small fraction. Thus for each portion of the image there is a respective picture-element signal in each succession. The signals of each image portion are then projected onto the same portion of a light-sensitive medium to form a picture of the image thereon. This medium is capable of adding each of the signals of each set to the signals of the other sets corresponding to the same image portion.
摘要翻译： 产生图像的视频图像的方法包括如下步骤：以等于产生足以处理的幅度的图像元素信号所需的光量级的大约预定的小部分的光级别点亮图像。 然后将如此照亮的图像扫描并电光学地减少到预定数量N次的一系列模拟图像元素信号，数量N等于预定小部分的倒数。 因此，对于图像的每个部分，每个连续存在相应的图像元素信号。 然后将每个图像部分的信号投影到光敏介质的相同部分上以在其上形成图像的图像。 该介质能够将每组信号中的每一个信号与对应于同一图像部分的其它集合的信号相加。
-
公开(公告)号：US4558436A
公开(公告)日：1985-12-10
申请号：US424971
申请日：1982-09-27
IPC分类号： G11C11/401 , G06F3/153 , G09G5/00 , G09G5/39 , G09G5/393 , G09G5/395 , G09G5/397 , G09G5/399 , H04N5/44 , H04N5/907 , G11C11/40
摘要： The dynamic random access memory for use in a video circuit scanning video images according to the interlaced scanning method and reproducing the images on monitors of different resolutions is described. The RAM memory is composed of as many RAM segments as there are graduations of picture elements available, each segment including a plurality of RAM chips determined by the minimum read/write cycle time and by the scanning cycle time. To speed up the addressing during the switchover from the low-resolution to a high-resolution reception, the memory is organized into two halves, for storing respectively signals pertaining to odd-numbered and even-numbered picture lines. In each half, the vertical columns are subdivided into groups of lines pertaining to a single video data word. The adjoining pairs of columns store the signals pertaining to corresponding pairs of consecutive video lines which, in each pair, are arranged one below the other. In this manner the access time in the memory during the low-resolution is made faster.
摘要翻译： 描述了用于视频电路中的动态随机存取存储器，其根据隔行扫描方法扫描视频图像并再现不同分辨率的监视器上的图像。 RAM存储器由可用的像素刻度的RAM段组成，每个段包括由最小读/写周期时间和扫描周期时间确定的多个RAM芯片。 为了加快在从低分辨率切换到高分辨率接收的切换期间的寻址，存储器被分成两半，用于分别存储与奇数和偶数图像行有关的信号。 在每一半中，垂直列被细分为与单个视频数据字有关的一组行。 相邻的列对存储与相应的连续视频对对相关的信号，每对连续的视频行在每一对中彼此排列。 以这种方式，在低分辨率期间存储器中的访问时间变得更快。
-
公开(公告)号：US4368489A
公开(公告)日：1983-01-11
申请号：US279038
申请日：1981-06-30
申请人： Otto Stemme , Eduard Wagensonner , Wolfgang Ruf
发明人： Otto Stemme , Eduard Wagensonner , Wolfgang Ruf
摘要： A galvanometric tilting-mirror scanning system shifts an image of an original projected onto a photodiode row in a direction transverse to such row. The tilting-mirror mechanism is provided with an oil-filled damping chamber, heated and maintained at stabilized temperature. The control voltage driving the tilting-mirror system includes a sawtooth component whose lower-slope flanks determine the mirror's scanning sweep; a negative pulse which effects mirror tiltback or flyback; a positive pulse which brakes the tiltback and accelerates the mirror back up to its forwards-direction scanning-sweep speed; and finally a corrective component. The corrective component has the form of a pulse which increases the slope of the sawtooth component's lower-slope flanks during a time interval extending beyond the system's vertical blanking allotment, to compensate the non-linearity in the motion of the mirror which would exist during its forwards-direction scanning-sweep interval in the absence of the corrective component.
摘要翻译： 电流倾斜镜扫描系统将横向于该行的方向将投影到原始光电二极管行上的图像移动到光电二极管行上。 倾斜镜机构设有充油阻尼室，加热并保持在稳定的温度。 驱动倾斜镜系统的控制电压包括锯齿波分量，其下斜侧面决定了镜的扫描扫描; 影响镜面倾斜或反射的负脉冲; 正向脉冲，其制动倾斜并加速反射镜向前扫描扫描速度; 最后是一个纠正组件。 校正组件具有脉冲的形式，其在延伸超出系统的垂直消隐分配的时间间隔内增加锯齿形部件的下斜面侧面的斜率，以补偿其在其内部存在的反射镜的运动中的非线性 在没有校正组件的情况下，前向扫描间隔。
-
公开(公告)号：US4368484A
公开(公告)日：1983-01-11
申请号：US223721
申请日：1981-01-09
申请人： Otto Stemme , Eduard Wagensonner
发明人： Otto Stemme , Eduard Wagensonner
摘要： An apparatus is disclosed for electronically scanning photographic positives or negatives and reproducing them as video images. These images are displayed on a video monitor and may, if desired, be copied onto photosensitive paper.
摘要翻译： 公开了一种用于电子扫描照相正片或底片并将其再现为视频图像的装置。 这些图像显示在视频监视器上，如果需要，可以将其复制到感光纸上。
-
公开(公告)号：US4096500A
公开(公告)日：1978-06-20
申请号：US799325
申请日：1977-05-23
申请人： Peter Lermann , Eduard Wagensonner
发明人： Peter Lermann , Eduard Wagensonner
摘要： A scene-pause counter, a scene-production counter, and a repetition counter are connected in a series. Each counter furnishes its count to an associated comparator which also receives a signal from an addressable read-only memory. Pulse trains are applied to the counters. When a comparator in the series detects coincidence, it initiates counting by the next counter. When the last comparator in the series detects coincidence it can restart the first counter. A program-selector switch causes different address signals to be applied to the memory, resulting in different operations of different durations, in different combinations and sequences. This makes possible projection or exposure of single frames or series of frames with intermediate pauses between the projection or exposure of successive frames or series of frames, as well as repetitions of such combinations of operations.
摘要翻译： 串联连接场景暂停计数器，场景制作计数器和重复计数器。 每个计数器向相关的比较器提供计数，该比较器还从可寻址的只读存储器接收信号。 脉冲列车应用于计数器。 当串联中的比较器检测到重合时，它启动下一个计数器的计数。 当系列中的最后一个比较器检测到重合时，它可以重启第一个计数器。 程序选择器开关将不同的地址信号施加到存储器，导致不同的持续时间的不同操作，以不同的组合和顺序。 这使得可以在连续帧或一系列帧的投影或曝光之间具有中间暂停的单帧或一系列帧的投影或曝光，以及这些操作组合的重复。
-
公开(公告)号：US4025935A
公开(公告)日：1977-05-24
申请号：US663817
申请日：1976-03-04
CPC分类号： G03B7/085 , G03B7/0807
摘要： The exposure control circuit of the camera requires a supply voltage which must have an amplitude exceeding a predetermined minimum amplitude. The camera battery is subject undesired decreases in battery output voltage. A transverter circuit has an input connected to the battery and in response to the battery output voltage furnishes a DC output voltage to the exposure control apparatus when the battery output voltage has an amplitude less than the predetermined minimum amplitude. A control circuit is responsive to the voltage applied to the exposure control apparatus and controls a controllable impedance connected between the transverter input and the battery so that the supply voltage applied to the exposure control apparatus remains constant at a value just exceeding the predetermined minimum amplitude when the battery output voltage is too low and disconnects the transverter circuit from the battery when the battery output voltage exceeds the predetermined minimum amplitude. In the latter case a diode is provided for applying the battery output voltage directly to the exposure control circuit.
摘要翻译： 相机的曝光控制电路需要必须具有超过预定最小振幅的幅度的电源电压。 相机电池会受到不必要的电池输出电压的降低。 转换器电路具有连接到电池的输入端，并且响应于电池输出电压，当电池输出电压具有小于预定最小振幅的幅度时，向曝光控制装置提供DC输出电压。 控制电路响应于施加到曝光控制装置的电压并且控制连接在变频器输入和电池之间的可控阻抗，使得施加到曝光控制装置的电源电压保持恒定在刚好超过预定最小振幅的值，当 当电池输出电压超过预定的最小幅度时，电池输出电压太低，并断开转换器电路与电池的连接。 在后一种情况下，提供二极管用于将电池输出电压直接施加到曝光控制电路。
-
公开(公告)号：US4007467A
公开(公告)日：1977-02-08
申请号：US596054
申请日：1975-07-15
申请人： Eduard Wagensonner , Kurt Borowski , Dieter Knauer
发明人： Eduard Wagensonner , Kurt Borowski , Dieter Knauer
CPC分类号： G03B7/083
摘要： A light-sensitive element is connected to a capacitor to vary the charging rate of the capacitor in accordance with the light falling on the light-sensitive element. The emitter-collector circuit of a switching transistor is connected in series with the light-sensitive element. The base of the transistor is pulsed by an astable multivibrator which furnishes a pulse sequence having a pulse repetition rate which exceeds the reciprocal of the smallest exposure time. The pulses in the pulse sequence have a pulse width determined by the selected one of a plurality of resistors. The selector switch inserting the selected one of the resistors into the astable multivibrator circuit is coupled to selector means which select one of a plurality of exposure factors as for example the aperture size. The electronic switch is conductive, permitting charging of the capacitor only during the pulse duration. The charging rate of the capacitor can therefore be adapted to the particular aperture size, film sensitivity, etc. without changing the capacitance of the capacitor or covering a portion of the light-sensitive element.
摘要翻译： 光敏元件连接到电容器以根据落在光敏元件上的光来改变电容器的充电速率。 开关晶体管的发射极 - 集电极电路与光敏元件串联连接。 晶体管的基极由不稳定的多谐振荡器脉冲，其提供具有超过最小曝光时间的倒数的脉冲重复率的脉冲序列。 脉冲序列中的脉冲具有由多个电阻器中的所选择的电阻器确定的脉冲宽度。 将所选择的一个电阻器插入到非稳态多谐振荡器电路中的选择器开关耦合到选择器装置，其选择多个曝光因子中的一个，例如孔径尺寸。 电子开关是导通的，只允许在脉冲持续时间内对电容充电。 因此，电容器的充电速率可以适应于特定孔径尺寸，膜敏感性等，而不改变电容器的电容或覆盖光敏元件的一部分。
-
公开(公告)号：US3987462A
公开(公告)日：1976-10-19
申请号：US517805
申请日：1974-10-24
申请人： Eduard Wagensonner
发明人： Eduard Wagensonner
CPC分类号： G03B7/085
摘要： A camera has a step motor for stepwise adjustment of the value of an exposure factor. When the value of the exposure factor differs from the desired value a pulse generator furnishes a series of pulses to a ring counter which in turn connects each of the energizing windings of the step motor to a reference potential. The step motor rotates until the desired exposure factor value has been achieved and the pulse sequence ceases. A transistor is connected between the battery and the second terminals of all the windings and is maintained in a conductive state only in the presence of the pulses from the pulse generator. When the exposure factor is at the desired value and no further rotation of the step motor is required all windings are deenergized therefore decreasing the power loss in the motor.
摘要翻译： 相机具有步进电机，用于逐步调整曝光因子的值。 当曝光因子的值与期望值不同时，脉冲发生器向环形计数器提供一系列脉冲，该环计数器又将步进电动机的每个通电绕组连接到参考电位。 步进电机旋转直到达到所需的曝光因子值，脉冲序列停止。 晶体管连接在电池和所有绕组的第二端子之间，并且仅在存在来自脉冲发生器的脉冲的情况下才被保持在导通状态。 当曝光因子处于所需值时，不需要步进电机的进一步旋转，所有绕组都被断电，因此降低了电机的功率损耗。
-
-
-
-
-
-
-
-
-
搜索结果
61 条记录 (耗时 0.022 秒)
