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71. 发明专利

JPS63102566A IMAGE SIGNAL PROCESSOR 失效
公开(公告)号：JPS63102566A
公开(公告)日：1988-05-07
申请号：JP24865086
申请日：1986-10-20
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TSUCHIYA HIROYOSHI , NAKAZATO KATSUO , SANNOMIYA KUNIO , KAWAKAMI HIDEHIKO , FUJIKAWA WATARU
IPC分类号： H04N1/405 , H04N1/40 , H04N1/46 , H04N1/52
摘要： PURPOSE:To realize respective dots, which are the same number of holftone lines with a standard dot angle by executing rotational coordinate operations at an arbitrary dot angle and executing the threshold operations on a virtual screen of an arbitrary size. CONSTITUTION:When a scanning starting signal is inputted to a rotational coordinate arithmetic circuit 1, a picture element clock and horizontal synchronizing signals (x, y) are converted to rotational coordinates (x', y') based on the information of a rotation angle theta and a rotation direction inputted as a parameter. By the rotational coordinates (x', y'), a threshold arithmetic circuit 2 obtains a value (r), and a binarizing circuit 3 binarizes an input image signal with the threshold and converts it to a dot image. Thus, a standard dot angle in a color plate making etc., can be realized with the same number of the same holftone lines of respective colors.

72. 发明专利

JPS6310872A PICTURE SIGNAL PROCESSOR 失效
公开(公告)号：JPS6310872A
公开(公告)日：1988-01-18
申请号：JP15450186
申请日：1986-07-01
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KAWAKAMI HIDEHIKO , FUJIKAWA WATARU , NAKAZATO KATSUO , SANNOMIYA KUNIO
IPC分类号： H04N1/21
摘要： PURPOSE:To perform the control of buffer switching at a high speed, by performing the switching of a first and a second buffers through a buffer control means, by respective response signal generated from a first, or a second buffer memory. CONSTITUTION:At the time of inputting data of 64 lines, a buffer switching signal 32 is generated from a line counter, 10, and the signal resets an address counter 8, and simultaneously, it is informed to a switching circuit 11. Accordingly, the switching circuit 11 makes a buffer memory 13 connect a buffer memory 15 to an MPU1 side, and a buffer memory 14 to an external equipment side. Meanwhile, so that the buffer memory 15 is connected to the MPU1 side, a response signal (MPURDY1)25 for a connection request signal (MPUREQ1)23 is informed to an MPU1. At the time of completing the read of the content of the buffer memory 15, a switching signal 31 switching from the MPU1 to the buffer is informed to the switching circuit 11, thereby, the switching of the buffer memory is performed. By repeating such operation sequentially, it is possible to fetch a great number of data in the MPU at a high speed.

73. 发明专利

JPS62122376A PICTURE READER 失效
公开(公告)号：JPS62122376A
公开(公告)日：1987-06-03
申请号：JP24743085
申请日：1985-11-05
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： FUJIKAWA WATARU , KAWAKAMI HIDEHIKO , NAKAZATO KATSUO , SANNOMIYA KUNIO
IPC分类号： H04N1/19 , H04N1/04 , H04N1/40 , H04N1/407
摘要： PURPOSE:To prevent a longitudinal stripe pattern resulting from an output level difference between an even number picture element and an odd number picture element by providing an output level adjusting part collecting the output level after A/D converting an output picture signal of a solid state image sensor. CONSTITUTION:When a black reference reading signal 21 scans a black reference by H, addition average circuits 11, 12 respectively calculate the addition averages of the picture signals of the odd number picture element and the even number picture elements through one main scanning of the solid state image sensor 4 and they are latched to latch circuits 13, 14 according to a latch pulse, respectively. Then, the difference is calculated by a difference device 15 and outputted to a ROM16. Then, the black reference reading signal 21 is changed to L and scans on an original 2, the output signal of the ROM16 is latched to a latch circuit 17 and a selector circuit 18 outputs alternately difference latch data 30 and data '0' from an input terminal 19 as a correction signal 31. The picture signal from an A/D converter 6 is inputted to an adder 20, added to a correction signal 31, and the picture signal in which the output level is set by the odd number picture element and the even number picture element is obtained.

74. 发明专利

JPS6235772A IMAGE READER 失效
公开(公告)号：JPS6235772A
公开(公告)日：1987-02-16
申请号：JP17450585
申请日：1985-08-08
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： FUJIKAWA WATARU , KAWAKAMI HIDEHIKO , SANNOMIYA KUNIO , NAKAZATO KATSUO
IPC分类号： H04N1/401 , H04N1/04 , H04N1/19 , H04N1/40
摘要： PURPOSE:To improve the SN ratio and resolution of an image signal, and to increase the quantity of variation in image density and improve picture quality by providing a multiplier,a sample holding circuit, an amplifier, an adding and averaging circuit, and a resolution correcting circuit. CONSTITUTION:An analog image signal which is not processed by the multiplier 14 multiplying an analog image signal held by the sample holding circuit 13 by an analog coefficient of shading correction and the amplifier 15 is converted by an A/D converter 7 into a digital iamge signal, and the adding and averaging circuit 16 calculates the additive means for a predetermined number of main scans at each picture element position. When the adding and averaging processing is carried out for the image signal, noise components cancel each other, so the SN ratio of the image signal is improved. When an original 2 carries an image with small density variation, a reproduced image also has small density variation and is hard to see. For the purpose, the density variation of the original image is increased by the amplifier 15 so as to obtain an easy- to-see reproduced image. Further, the resolution is corrected by a resolution correcting circuit 2.

75. 发明专利

JPS61196664A PICTURE READER 失效
公开(公告)号：JPS61196664A
公开(公告)日：1986-08-30
申请号：JP3691085
申请日：1985-02-26
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SANNOMIYA KUNIO , FUJIKAWA WATARU , NAKAZATO KATSUO , KAWAKAMI HIDEHIKO
IPC分类号： H04N1/19 , G06K9/20 , G06T3/00 , H04N1/04
摘要： PURPOSE:To solve the uncontinuity of the picture signal level in the junction of the plural solid image sensors, by performing the weighing with monotone increasing function for synthesis of a picture signal in the read multiple area. CONSTITUTION:Now a light source 11 is radiates uniformly an original picture 12, the reflected light is condensed on the solid image sensors 15 and 16 by the lenses 13 and 14, photoelectrically converted by the solid image sensors 15 and 16, and become the analog signals. These analog signals are amplified by the amplifiers 17 and 18 to the specified amplitude, converted to the digital signals by the A/D converters 19 and 20, and input into a weighing selection circuit 21. On the one hand, the weighing value corresponding to the picture element in the multiple area designated by a multiple area designated means 22 generated by a function generation means 23, its signal is input into the weighing selection circuit, a weighing operation is performed in the weighing selection circuit 21 by a multiple area designation signal and a weighing value signal against a digital signal from the above-mentioned A/D converters 19 and 20, and on output signal is obtained.

76. 发明专利

JPS60248075A PICTURE READER 失效
公开(公告)号：JPS60248075A
公开(公告)日：1985-12-07
申请号：JP10500884
申请日：1984-05-23
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KAWAKAMI HIDEHIKO , FUJIKAWA WATARU , NAKAZATO KATSUO , SANNOMIYA KUNIO
IPC分类号： H04N1/407 , H04N1/40
摘要： PURPOSE:To improve the density level correction of an original by detecting maximum white/black density in forward operation in the movement toward sub scanning and controlling variably the offset and gain of a variable amplifier in the forward operation. CONSTITUTION:An original table 14 is moved in the direction 17 by a sub scanning motor 16. In this case the original table 14 is moved in a high speed and the maximum white density and the maximum black density of an original 13 are stored. In order to read an ordinary signal, the motor 16 moves the table 14 in the direction 18. In this case, the density level correction of an input signal is executed by the maximum white/black densities so as to control the density level range of an input original up to the maximum quantized power of an A/D conveter.

77. 发明专利

JPS60103872A PICTURE SIGNAL PROCESSOR 失效
公开(公告)号：JPS60103872A
公开(公告)日：1985-06-08
申请号：JP21273283
申请日：1983-11-11
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OOTSUKA HIROTAKA , TSUCHIYA HIROYOSHI , NAKAZATO KATSUO , SANNOMIYA KUNIO , KAWAKAMI HIDEHIKO
IPC分类号： H04N1/40
摘要： PURPOSE:To enhance the quality of a read-out original and operability by deciding whether the read-out original is a character part or a mesh screen photograph when the original in which characters and a mesh screen photograph are mixed is scanned and read out. CONSTITUTION:A variation point of a picture signal is detected, and difference between the lengths of sections is decided so as to judge periodicity. Original characteristics are decided due to the periodical section length. This processor is constituted in such a way that due to the decision, the processing signal treated in accordance with the picture signal is switched and recorded. By the program written in a main memory 33, a CPU32 reads out picture signal data which are stored in a picture signal storage area of a magnetic disk device 34, and outputs the picture signal and a phase signal on a position detection means 9 of a picture signal variation point through an output channel 36. A picture signal variation point and an original characteristic code are outputted from an original characteristic giving means 17 in accordance with characteristics of the picture signal inputted to the detection means 9, read to the CPU32 through an input channel 35, and written to an original characteristic memory area of the magnetic disk device 34 as original characteristic data.

78. 发明专利

JPS6051067A METHOD AND APPARATUS FOR PICTURE SIGNAL PROCESSING 失效
公开(公告)号：JPS6051067A
公开(公告)日：1985-03-22
申请号：JP15860683
申请日：1983-08-30
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OOTSUKA HIROTAKA , NAKAZATO KATSUO , SANNOMIYA KUNIO , KAWAKAMI HIDEHIKO , TSUCHIYA HIROYOSHI
IPC分类号： H04N1/387
摘要： PURPOSE:To make expanding and contracting processing of a picture signal effectively by setting different comparing windows of two or more kinds, selecting and using the comparing window according to scanning and thereby enabling fixed boredering at all times. CONSTITUTION:A rotary drum 2 on which an original 3 is spread is driven, and the original 3 is irradiated by a light source 29 on a sub-scanning moving stand 29. The reflected light is photoelectrically converted by a photoelectric converter 11 and compared with a comparative level by a comparator 13, and binary information is outputted. This picture information is stored in input picture signal memory 31, 32, and a scanning window is set in a scanning window setting device 34 by control of a memory control section 33. Two or more kinds of comparing windows are set in a comparison setting device 35 by a scanning repeating device 41. Two or more kinds of comparing windows set in the setting device 35 are selected and used according to scanning of a memory scanning device 40. A picture signal reproducing device 39 and a logical arithmetic section 19 are controlled through an output picture signal memory 37. Thus, fixed bordering is made possible at all times and expanding or contracting processing is made effectively.

79. 发明专利

JPS6029089A METHOD AND DEVICE FOR PROCESSING PICTURE SIGNAL 失效
公开(公告)号：JPS6029089A
公开(公告)日：1985-02-14
申请号：JP13801783
申请日：1983-07-28
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TSUCHIYA HIROYOSHI , NAKAZATO KATSUO , SANNOMIYA KUNIO , KAWAKAMI HIDEHIKO , OOTSUKA HIROTAKA
IPC分类号： H04N1/405 , H04N1/40 , H04N1/46 , H04N1/48 , H04N1/52
摘要： PURPOSE:To display the false half tone without the deterioration of the resolution, by storing the picture signal level of the respective picture elements of the original picture to two memory means using the one memory data as a data for ranking and redistributing the other memory data. CONSTITUTION:The input picture signal, which is digitized by an A/D converter 17, is stored through the gate circuits 18 and 20 to the picture data memory devices 19 and 21 respectively. The data, for which the conversion processing is completed by the redistribution in the device 21, is read out from the device 21 and is outputted through the binary circuit 23. The data adder 25 can obtain the sum S of the data in the scanning window obtained by the device 21 and the error correction volume E obtained by an error correction volume operation circuit 26. The redistribution circuit 29 makes the conversion data from the sum S and writes the conversion data to the device 21 in order. The circuit 26 selects the picture signal level, that is a value the last data of which is converted in the scanning window, from the data of the circuit 29, the picture signal level is obtained by comparing the level and the binary level V obtained from the circuit 23 and the value of the difference of both picture levels is given to the next scanning window as a correction volume E.

80. 发明专利

JPS59117860A Picture signal processor 失效
标题翻译：图像信号处理器
公开(公告)号：JPS59117860A
公开(公告)日：1984-07-07
申请号：JP23180782
申请日：1982-12-24
申请人： Matsushita Electric Ind Co Ltd
发明人： NAKAZATO KATSUO , OOTSUKA HIROTAKA , TSUCHIYA HIROYOSHI , KAWAKAMI HIDEHIKO , SANNOMIYA KUNIO
IPC分类号： H04N1/407 , G06T5/00 , H04N1/40
CPC分类号： H04N1/40
摘要： PURPOSE:To process easily a complicated gradation convertion by amplifying a picture signal proportional to the amount of reflected light of an original picture, converted the result into a digital input picture signal and taking the converted result as an address of a gradation converting memory. CONSTITUTION:A signal v2 amplified 1 a reading picture signal v1 proportional to the amount of reflected light is inputted to a range amplifier 2. An operating console 15 stores plural coordinates, and values of white and black density on a gradation correcting curve to a storage area of a microprocessor uPC14, and after the data is converted, a white level signal C1 and a black level signal C2 are transmitted to an amplifier 2. The amplifier 2 amplifies the range of amplitude of the signal v2 to a level decided by the signals C1, C2, and its output signal is converted into a parallel digital picture signal v5 at an A/D converter 11. The signal v5 becomes an address v6 of a gradation converting memory 13 by an address selector 12. The converted value of the picture signal obtained from a gradation correcting curve drawn on a normalized input density versus normalized output density coordinate plane is stored in the memory 13 and a data converted value v7 is obtained in response to the correcting curve by the address v6.
摘要翻译：目的：通过放大与原始图像的反射光量成比例的图像信号，容易地处理复杂的灰度转换，将结果转换为数字输入图像信号，并将转换的结果作为灰度转换存储器的地址。构成：将与反射光量成比例的读取图像信号v1放大的信号v2输入到范围放大器2.操作控制台15将灰度校正曲线上的多个坐标和白色和黑色浓度的值存储到存储器微处理器uPC14的区域，并且在数据被转换之后，白电平信号C1和黑电平信号C2被发送到放大器2.放大器2将信号v2的振幅范围放大到由信号决定的电平 C1，C2及其输出信号在A / D转换器11处被转换为并行数字图像信号v5。信号v5由地址选择器12变成灰度转换存储器13的地址v6。图像的转换值从归一化输入密度对标准化输出密度坐标平面绘制的灰度校正曲线获得的信号被存储在存储器13中，并且响应于通过地址v6修正曲线。

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