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1. 发明专利

JPH05143743A VECTOR IMAGE DRAWING DEVICE 失效
公开(公告)号：JPH05143743A
公开(公告)日：1993-06-11
申请号：JP33246791
申请日：1991-11-21
申请人： RICOH KK
发明人： KUMAZAKI HITOMI , HANIYU YOSHIAKI , SATO TAKASHI
IPC分类号： B41J2/485 , G06F3/13 , G06T11/20 , G09G5/20 , G09G5/36
摘要： PURPOSE:To execute an anti-aliasing processing at high speed. CONSTITUTION:A CPU 202 calculates the starting (x) coordinate value of a left edge part to be drawn, the starting (x) coordinate value of a right edge part to be drawn, the range of the left edge part to be drawn and the range of the right edge part to be drawn, and a linear drawing device 206 decides the approximate area rate of respective edge part picture elements with the density value of a graphic to be drawn, a (y) coordinate value to be drawn, the starting (x) coordinate value of the left edge to be drawn, the starting (x) coordinate of the right edge part to be drawn, the range of the left edge part to be drawn and the range of the right edge part to be drawn as input parameters and executes linear drawing in the (x) axis direction of a designated line.

2. 发明专利

JPH05143742A VECTOR IMAGE DRAWING DEVICE 失效
公开(公告)号：JPH05143742A
公开(公告)日：1993-06-11
申请号：JP33122491
申请日：1991-11-20
申请人： RICOH KK
发明人： KUMAZAKI HITOMI , HANIYU YOSHIAKI , SATO TAKASHI
IPC分类号： B41J2/485 , G06T11/20 , G09G5/20 , G09G5/24
摘要： PURPOSE:To calculate an area rate at high speed without counting the number of divided and painted-out sub pixels by providing an approximate area rate calculating means to calculate the approximate area rate of edge part picture elements. CONSTITUTION:This device is equipped with a CPU 202 to control the entire device according to various control programs and a font ROM 203 storing vector fonts or the like. A continuation information adding means generates vector data to form the outline of a graphic and continuation information showing continuity with the vector data and adds the data and the information to vector information. Next, based on the continuation information of the vector data, a pseudo vector generating means generates a pseudo vector from upper and lower scan lines with a scan line between and the information of intersections with the vector data. Continuously, the approximate area rate of the edge part picture elements is calculated by using the decimal part of an X coordinate value or a Y coordinate value at any one of two intersections formed when the pseudo vector passes through the edge part picture elements.

3. 发明专利

JPH05128266A PICTURE OUTPUT DEVICE 失效
公开(公告)号：JPH05128266A
公开(公告)日：1993-05-25
申请号：JP31752091
申请日：1991-11-05
申请人： RICOH KK
发明人： KUMAZAKI HITOMI , HANIYU YOSHIAKI , SATO TAKASHI
IPC分类号： B41J2/485 , G06F17/17 , G06T3/00 , G06T11/20
摘要： PURPOSE:To provide a picture output device in which a processing time is shortened. CONSTITUTION:In a picture output device having a reception device 201, a CPU 202, a ROM 203, a RAM 204, a page memory 205, an internal system bus 206 and a transmission device 207, inputting a vector picture, expanding the graphic to a multi-page memory 205, performing an anti-aliasing processing for the picture and outputting it in a multi-output device 200, the data inputted as a curve is approximated by an aggregate of linear vectors in which the Y coordinate is an integer type display, before a scan line processing is performed for the inputted vector picture. The real number Y coordinate of the linear vector is given an integer value. By changing the Y coordinate expression of the vector in the picture to an integer coordinate expression before the scan line processing is performed, the time required for new vector registration for every sub-line is reduced. By reducing the total number of vectors, other processing times are also reduced and the processing time is reduced as a whole.

4. 发明专利

JPH0575839A LAYOUT COPYER (REGISTERED TRADEMARK) 失效
公开(公告)号：JPH0575839A
公开(公告)日：1993-03-26
申请号：JP26313691
申请日：1991-09-13
申请人： RICOH KK
发明人： KUMAZAKI HITOMI , SATO TAKASHI , HANIYU YOSHIAKI
IPC分类号： H04N1/387 , G06T11/80
摘要： PURPOSE:To realize simple retouch, synthesis and editing processing by installing a transparent processing and input means as overlapping it on an input picture, and executing the input of a pen in a way to retouch the original of paper, and besides, providing a changeover switch and a RAM, and executing the input by a system to write on the original by the pen. CONSTITUTION:A picture from an input part 5 is processed by an image processor 39, and is turned into picture information, and is sent to a first memory 27 by a bus 25, and the picture information of the memory 27 is displayed on an LCD display panel 7 through a display circuit 37. Next, matters desired to add to the input picture capable of being seen through a transparent sheet 9 are written and added on the transparent sheet 9 by a writing tool. When a copy start button 17 is pushed, copying is started, and the transparent sheet 9 is moved and read by a scanner 11, and the picture is stored in a second memory 29. Next, the input picture of the memory 27 and the added picture of the memory 29 are read under the control of a CPU 31, and the OR of both is taken, and an added and synthesized picture is sent to a picture output part 15, and is copied and outputted as the picture.

5. 发明专利

JPH056376A WORKING STATE DISPLAY DEVICE 失效
公开(公告)号：JPH056376A
公开(公告)日：1993-01-14
申请号：JP14834391
申请日：1991-06-20
申请人： RICOH KK
发明人： SUZUKI HIROAKI , SEKO NACHIO , INOUE NAOMI , KUMAZAKI HITOMI
IPC分类号： G09G3/00 , G06Q50/00 , G06Q50/16
摘要： PURPOSE:To easily execute the registration of existing information for plural destination display boards and the setting, updating and resetting of displayed existing information and to improve operability by providing this working state display device with an information processing means for applying an information changing command to a corresponding display board unit at the time of updating information stored in an integrated storage means. CONSTITUTION:A destination display boards are constituted of A group 102a to C group 1O2c and destination display boards A-O to A-L, B-O to B-M, C-O to C-N in respective groups 102a to 102c are connected to respective sub- networks 101a to 101c in common. A computer 103 for managing a system and a data base 104 are connected to a main network 100 and information displayed on all destination display is managed by the data base 104. A portable identification ID code transmitter united with an ID tag is prepared, an ID code receiver is connected to a destination display board, an ID code from the transmitter is received based upon a position where a person passes and the position of the destination display board and the destination display of the person is automatically updated or reset.

6. 发明专利

JPH04160979A DRAWING OUTPUT APPARATUS 失效
公开(公告)号：JPH04160979A
公开(公告)日：1992-06-04
申请号：JP28797890
申请日：1990-10-25
申请人： RICOH KK
发明人： SUZUKI HIROAKI , HANIYU YOSHIAKI , KUMAZAKI HITOMI
IPC分类号： B41J2/485 , G06T5/20 , G09G5/28 , H04N1/40 , H04N1/409
摘要： PURPOSE:To maintain high quality output image by selecting the optimum anti-aliasing processing purpose filter based on the output image data read by a selecting means and the image pattern stored in a storage means and carrying out the anti-aliasing processing. CONSTITUTION:A plurality of test patterns stored in a storage means 10 at a predetermined timing are outputted to recording paper via a writing means 20. An output image reading means 30 sequentially reads output test patterns and outputs the read pattern to a selecting means 40. The selecting means 40 compares output image sent from the reading means 30 with test patterns that are original data of the output image to obtain the best regenerative test pattern. An anti-aliasing processing means 50 uses an anti-aliasing processing filter to execute the successive anti-aliasing processing. With this, high quality output image to which anti-aliasing processing is applied can be maintained.

7. 发明专利

JPH04152757A IMAGE FORMING DEVICE 失效
公开(公告)号：JPH04152757A
公开(公告)日：1992-05-26
申请号：JP27725390
申请日：1990-10-16
申请人： RICOH KK
发明人： OGAWA TOMOKO , KUMAZAKI HITOMI , HANIYU YOSHIAKI
IPC分类号： B41J29/46 , G03G15/00 , G03G15/01 , G03G15/36 , G03G21/00 , G06F3/12 , H04N1/40 , H04N1/409
摘要： PURPOSE:To reduce a picture element of a low density level stably by receiving the result of measurement for toner adhesion state, obtaining a valid minimum value in which an intermediate tone level is reproduced and correcting gradation obtained by anti-aliasing processing to have the valid minimum value or over. CONSTITUTION:A test pattern written on a photosensitive drum is subject to toner development by a multi-value color laser printer, the reproducing state of the test pattern subject to toner development is measured through a toner adhesion concentration measuring equipment and the result is fed back to a gamma discrimination section of a PDL controller 200 to obtain a valid minimum value at which an intermediate tone level is reproduced and a valid maximum value at which an intermediate tone level is reproduced. Then the gradation obtained by the anti-aliasing processing is corrected in a range to be the valid minimum value or over and the valid maximum value or below in the intermediate tone correction processing based on the valid minimum value and the valid maximum value obtained by the gamma discrimination section.

8. 发明专利

JPH041872A GRAPHIC PROCESSOR 失效
公开(公告)号：JPH041872A
公开(公告)日：1992-01-07
申请号：JP10507290
申请日：1990-04-19
申请人： RICOH KK
发明人： KUMAZAKI HITOMI , HANIYU YOSHIAKI
IPC分类号： G06T11/20 , G06F15/72
摘要： PURPOSE:To obtain an area rate at a high speed without performing the division of subpixels nor counting the number of area-filled subpixels by providing an edge deciding means and a 2nd arithmetic means which calculates the area rate of each edge part picture element based on the coordinate values of two intersection, the area of a triangle, and the type of the edge respectively. CONSTITUTION:A 1st arithmetic means calculates the area S of a triangle from the difference between the coordinate values X0 and X1 of two intersections when the vector data cross the scan lines Y0 and Y1. An edge deciding means decides the type of an edge, i.e., decides whether the vector data show the right or left edge. Then a 2nd arithmetic means calculates the area rate of each unit part picture element based on the values X0 and X1, the area S, and the type of the edge. Thus the area S is obtained at a high speed. In particular, the area rate is accurately obtained in the form of an ideal numerical value at a normal vector edge part having no edge point. As a result, the area rate can be obtained at a high speed without performing the division of subpixels nor counting the number of area-filled subpixels.

9. 发明专利

JPH0696222A PICTURE PROCESSOR 失效
公开(公告)号：JPH0696222A
公开(公告)日：1994-04-08
申请号：JP24622992
申请日：1992-09-16
申请人： RICOH KK
发明人： KUMAZAKI HITOMI
IPC分类号： G06T5/00 , G06T11/20 , G06F15/72 , G06F15/68
摘要： PURPOSE:To decide the density of picture elements for processing time similar to conventional RMW(read/modify/write) processing without lowering picture quality. CONSTITUTION:An LUT circuit 42 calculates successively the picture element density from density data, area rate K and density Dm by using RMW processing, buffers 43a-43c output the density of respective left, objective, and right picture elements as outputs A, B and C, and an arithmetic part 44 compares the output B with the other picture element, decides density Dn of the objective picture element and outputs it to a frame memory. Namely, the density is compared with the right and left picture elements or five picture elements including three picture elements in read adjacent lines and when the density is lower than the other density, the density of any one of adjacent picture elements or the average value of outputs A and C is defined as Dn. When the density is out of the range of outputs A and C, the intermediate value is defined as Dn. In the other case, the output B is defined as Dn. Thus, the picture quality is not lowered by running out of the density of an edge part from the area density on both of sides.

10. 发明专利

JPH05221023A PAGE PRINTER AND PAGE PRINTER SYSTEM 失效
公开(公告)号：JPH05221023A
公开(公告)日：1993-08-31
申请号：JP2629892
申请日：1992-02-13
申请人： RICOH KK
发明人： HANIYU YOSHIAKI , MARUYAMA TOSHIAKI , KUMAZAKI HITOMI , SATO TAKASHI
IPC分类号： B41J2/485 , G03G15/00 , G03G15/36 , G03G21/00 , G06K15/00 , G06T11/00 , H04N1/00 , H04N1/23 , H04N1/387
摘要： PURPOSE:To prevent image quality from deteriorating due to the change of the magnification of image and printing time from increasing by a method wherein a resolution changing means, which changes the resolution of every page on the basis of the image information, which is judged by an image information judging means, is provided. CONSTITUTION:After the image information in document sent from a host computer 1 is judged page after page by an image information judging means 2a, the resolution of every page is changed on the basis of the resultant image information. As for the relationship of ratio between the amount of character and that of image in one page, the default resolution is selected for printing, when the amount of character is larger than that of image, while the resolution same as the resolution of image is selected when the amount of character is smaller than that of image. Thus, the change of the magnification of image becomes unnecessary and the image quality of character and of image can be prevented from deteriorating. In addition, when printing is performed in default resolution, the printing time of character can be reduced by employing bit map font for standard sized character.

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