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51. 发明专利

JPS6037082A CHARACTER CUTTING SYSTEM 失效
公开(公告)号：JPS6037082A
公开(公告)日：1985-02-26
申请号：JP14342783
申请日：1983-08-05
申请人： RICOH KK
发明人： MAEDA MAMORU
IPC分类号： G06K9/34 , G06K9/36
摘要： PURPOSE:To cut exactly a character in the characters underlined extending over two characters deriving a projection which subtracted a value corresponding to an underline from a vertical projection of a character line image, and detecting a character cutting point by its projection. CONSTITUTION:As for an image data inputted from a scanner, noise is eliminated by a noise eliminating and line cutting part, and thereafter, a line is cut by a horizontal projecting method. Subsequently, the image data of a cut one character line is stored in an image memory part 11. On the other hand, a vertical projection detecting part 12 derives the image vertical projection of one character line, and inputs it to a character cutting part 13. At this time, a mask part 14 eliminates an underlined part from a character image, detects a character cutting point, and sends it out to a recognizing part.

52. 发明专利

JPS5938789B2 JPS5938789B2 - 失效
公开(公告)号：JPS5938789B2
公开(公告)日：1984-09-19
申请号：JP13501578
申请日：1978-11-01
申请人： Ricoh Kk
发明人： MAEDA MAMORU , ODAWARA MASASHI
IPC分类号： H04N1/387 , H04N1/40

53. 发明专利

JPS57169866A PICTURE MAGNIFICATION VARYING DEVICE 失效
公开(公告)号：JPS57169866A
公开(公告)日：1982-10-19
申请号：JP5534181
申请日：1981-04-13
申请人： RICOH KK
发明人： MAEDA MAMORU
IPC分类号： G09G5/36 , G06T3/00 , G06T3/40 , G09G5/00
摘要： PURPOSE:To enable high-speed processing corresponding to a wide-range magnification variation factor by specifying an address by reference picture-element density data outputted from a recombining circuit and control data from a control circuit, and then density data on a desired picture element. CONSTITUTION:Four-bit reference picture-element density data stored in a matrix register 22 is inputted to a multiplexer 23. According to an array control signal 7 supplied from a control circuit 26, the multiplexer 23 rearrange the bits of the reference picture-element density data and sends the result to a conversion memory 24. The conversion memory 24 is supplied with control data consisting of a signal 9 for indicating a magnification variation rate and a signal 8 for showing the overlap state of a desired picture element from the control circuit 26. This control data and the output data of the multiplexer 23 are used as an address input to read the contents of the conversion ememory 24. This read data is inputted to an output buffer 25 as desired picture-element density data.

54. 发明专利

JPS5752082A Image information processor 失效
标题翻译：图像信息处理器
公开(公告)号：JPS5752082A
公开(公告)日：1982-03-27
申请号：JP12771280
申请日：1980-09-13
申请人： Ricoh Kk
发明人： MAEDA MAMORU
IPC分类号： G09G5/36 , G09G1/06

55. 发明专利

JPS56157574A PICTURE PROCESSION SYSTEM 失效
公开(公告)号：JPS56157574A
公开(公告)日：1981-12-04
申请号：JP6041480
申请日：1980-05-07
申请人： RICOH KK
发明人： MAEDA MAMORU
IPC分类号： H04N1/40 , G06T5/00 , H04N1/405
摘要： PURPOSE:To make the speed of processing high in the dither method by changing a threshold level in a picture element uint or a scanning line unit in accordance with the number of change points or nonchange points of data and by comparing a picture signal with every changed threshold level. CONSTITUTION:Picture data Si is input to a comparator 110 and is compared with the reference values 111. An output signal 112 of the comparator 111 is input to a change point detector 120, and the detector 120 acquires the change point of the signal 112 and outputs the change point detection output 121. A nonchange point detector 130 transmits a nonchange point detection output signal 131 at a constant time after the output 121. A control device 140 is counted up or down by signals 121 and 131; and if the count value reaches a set value, 1 is instructed; and if not, 0 is instructed. An output signal 141 of the device 140 is input to selectors 170 and 180; and if the signal 141 is 1, output signals 151 and 152 of a counter 150 are selected, and contents of a dither matrix memory 100 are compared with data Si. If the signal 141 is 0, the address of the memory 100 is changed in accordance with scanning lines.

56. 发明专利

JPS56147247A MULTIPLE INTERRUPTION PROCESSING SYSTEM 失效
公开(公告)号：JPS56147247A
公开(公告)日：1981-11-16
申请号：JP4916780
申请日：1980-04-16
申请人： RICOH KK
发明人： MAEDA MAMORU
IPC分类号： G06F9/48
摘要： PURPOSE:To process interruption properly within the queuing time according to the priority level, by shifting interrupt requests of lower levels to upper interrupt registers for interrupt requests of higher levels successively for every switching after one interruption processing. CONSTITUTION:When completing the processing of the preceding input request, the CPU reads out contents from next register NR. Register NR checks whether interrupt request IR0 is entered in interrupt register IRR0 of a high priority level or not. If interrupt request IR0 is entered, contents of this request are transfferred to register NR. If interrupt request IR0 is not held, changeover switch SWN is connected to the side of subregister SR0, and the interrupt request held in subregister SR0 is transferred to register NR. After contents of register SR0 are transferred, it is checked whether the interrupt request is held in interrupt register IRR1 or not.

57. 发明专利

JPS56131259A PICTURE-ELEMENT CONSTITUTION CONVERTER 失效
公开(公告)号：JPS56131259A
公开(公告)日：1981-10-14
申请号：JP3425380
申请日：1980-03-18
申请人： RICOH KK
发明人： MAEDA MAMORU
IPC分类号： H04N1/417 , G06T3/40 , H04N1/387 , H04N1/41
摘要： PURPOSE:To form a clear picture by optimalizing picture elements in a picture-element block after a 2X2 picture-element block of an original picture is converted into a 3X3 picture-element block, by using relations between respective picture elements of the original picture and its adjacent picture elements. CONSTITUTION:Code converter 53 determines picture-element levels of four corners Q1, O3, O7, and O9 of a converted picture-element block obtained by converting a 2X2 original picture-element block into a 3X3 picture-element block, and also determines number nB of black picture elements. If nB is 1-4, code converter 54 determines black picture elements according to the number of middle points O2, O4, O6, and O8. When the number does not reach nB at the determination of black picture elements as to middle points Q2, O4, O6, and O8, converter 54 supplies the remaining number nB' of black picture elements to code converter 55. Consequently, converter 55 regards center point O5 as black and feeds number nB'-1 back to converter 54, which when nB'-1 0, considers some of the determined middle points to be black picture elements to optimalizing the white or black relations among all picture elements, thereby forming a clear picture.

58. 发明专利

JPS56116154A INTERRUPTING DETECTION CIRCUIT 失效
公开(公告)号：JPS56116154A
公开(公告)日：1981-09-11
申请号：JP1922380
申请日：1980-02-20
申请人： RICOH KK
发明人： MAEDA MAMORU
IPC分类号： G06F9/48 , G06F13/24
摘要： PURPOSE:To enable processing in the order of occurronce of interruption, by using the interruption storange circuit. CONSTITUTION:Interruption request signals IR0-IR7 are input to the interruption mask circuit 3, and the request signal RQ is produced when the interruption request is present. The counter decoder 5 is counted up with the clock signal CK, the count output COUNT is given on the one hand to the interruption storage circuit 4 and on the other hand, it is decoded at the decode section to produce the strobe signals STB0-STB7. The strobe signals are given to the interruption mask circuit 3 to sequentially scan the presence of input of interruption request signal. With this state, when either one of the interruption request signals is produced, the request signal RQ is produced from the interruption mask circuit 3 in synchronizing with the strobe signal corresponding to the request signals IR0-IR7, and the interruption storage circuit 4 fetches the content of the count output COUNT at the time and stores it.

59. 发明专利

JPS56112177A MULTIINPUT COMPARATOR 失效
公开(公告)号：JPS56112177A
公开(公告)日：1981-09-04
申请号：JP1461780
申请日：1980-02-08
申请人： RICOH KK
发明人： MAEDA MAMORU
IPC分类号： H04N1/407 , H04N1/40
摘要： PURPOSE:To make it possible to detect a maximum input signal easily by sending a larger input signal out of two input signals to a latch circuit to store it and setting up a sequential signal comparing part which makes the stored signal return to one of the input sides as a comparing standard. CONSTITUTION:Sequential signal comparing part CMP which compares two input out of input signals A, B and C, sends a larger input signal to latch circuit LAT to store it and makes the stored signal return to one of the input sides as a comparing standard is installed. Control part CNT sends plural signals to be compared sequentially with appropriate timing to the other side of comparing part CMP according to the counted contents of a clock signal. Maximum input latch part MAXLAT reads out the counting signal outputted from control part CNT according to the decision signal outputted from comparing part CMP when a signal to be compared is larger than the standard and stores the read counting signal as the maximum input signal number at present. Thus, the maximum input signal can be easily detected.

60. 发明专利

JPS5686583A PROCESSOR FOR VIDEO INFORMATION 失效
公开(公告)号：JPS5686583A
公开(公告)日：1981-07-14
申请号：JP16430579
申请日：1979-12-18
申请人： RICOH KK
发明人： MAEDA MAMORU
IPC分类号： H04N1/417 , H04N1/387 , H04N1/40
摘要： PURPOSE:To make conversion of the video element density by 1.5 times easy, by converting the video element information of 2 row 2 column into that of 3 row 3 column by means of ROMs, based on the stored information in the two shift registers. CONSTITUTION:The data D0 consisting of video element information Sij is input to a shift register 20 for sequential transmission. Further, video element information S11, S12 are sequentially stored in the stage at the lower stage of the register 20, and the video element information S13-S1n of the 1st scanning line succeeding to them are stored in the buffer register 21. Further, the first two video element information S21, S22 of the 2nd scanning line are fetched to the upper stage of the register 20. Next, in the timing when the video element information S22 is fetched to the register 20, and ROM22 executes the operation according to the specified algorithm based on the data D1 of the register 20, i.e., video element information S11, S12, S21, S22 to transmit the data D2, i.e., video element information O11-O33.

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