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1. 发明专利

JP2002247378A VIDEO MEMORY CONTROL METHOD FOR COMPRESSED IMAGE DATA 失效
公开(公告)号：JP2002247378A
公开(公告)日：2002-08-30
申请号：JP2001042673
申请日：2001-02-20
申请人： RICOH KK
发明人： MIURA MIKIO
IPC分类号： H04N1/41 , G09G5/00 , G09G5/393
摘要： PROBLEM TO BE SOLVED: To provide a video memory control method for compressed image data which effectively utilizes a video memory and reduces the process time. SOLUTION: The control method comprises a step for combining-editing- combining only image data to be edited among image data stored in a video memory, transferring them to idle areas of the video memory, rearranging data in the video memory, but, returning them to original memory areas if there is no change of occupied areas of the video memory, and beginning the DMA transfer of line data outside objects under access for edition and preceding others.

2. 发明专利

JP2000098996A IMAGE DISPLAY DEVICE 失效
公开(公告)号：JP2000098996A
公开(公告)日：2000-04-07
申请号：JP26693798
申请日：1998-09-21
申请人： RICOH KK
发明人： MIURA MIKIO
IPC分类号： G09G5/14 , G06F3/00 , G06F3/048 , G09G5/377
摘要： PROBLEM TO BE SOLVED: To instantly change the overlapping state of respective windows in an image display device performing a multi-window display. SOLUTION: This image display device provided with a multi-window display means for setting the window being plural rectangular areas in a display picture of a display device 9 and respective displaying image information stored in a plural image memory areas in respective plural windows is provided with a display control circuit 4 for controlling the display contents by performing mask processing for expressing the overlapping state of respective windows displayed on the display picture synchronized with display operation.

3. 发明专利

JPH11161256A IMAGE DISPLAY UNIT 失效
公开(公告)号：JPH11161256A
公开(公告)日：1999-06-18
申请号：JP32255497
申请日：1997-11-25
申请人： RICOH KK
发明人： MIURA MIKIO
IPC分类号： G06F3/14 , G06F3/048 , G09G5/00 , G09G5/14 , G09G5/36 , G09G5/39
摘要： PROBLEM TO BE SOLVED: To effectively utilize display memory, and to conduct multiwindow display with high speed at the minimum of circuit scale. SOLUTION: A display control circuit 4 of this image display unit are provided with a virtual image width register 15, a virtual image width switch 16, an address counter 11, a window attribute register 12 comprising plural registers for setting respectively an address off-set value of the layer corresponding to each window, a coordinate value indicating a display position of each window and its size, and the priority order, an off-set switch 13 for switching an address off-set value to be output for each window based on a value set in each register of the window attribute register 12 synchronized with display operation, and an off-set adder 14 for adding the address off-set value and the address for a basic screen changed in response to a set virtual image width output from the address counter 11 together to output the display address of each window to a VRAM 7 of a display memory.

4. 发明专利

JPH05313428A IMAGE FORMING DEVICE 失效
公开(公告)号：JPH05313428A
公开(公告)日：1993-11-26
申请号：JP14476292
申请日：1992-05-11
申请人： RICOH KK
发明人： YASUI GENICHI , OGIYAMA HIROMI , ISHIBASHI SHOZO , MIURA MIKIO , KURIHARA MASAMI , SHIINA SUSUMU
IPC分类号： B41J29/00 , G03G15/00 , H04N1/00
摘要： PURPOSE:To easily provided the device capable of properly dealing with a function desired by a user in size and layout by eliminating a waste space so as to save space. CONSTITUTION:This device is provided with plural process units 101-106 obtained in such a manner that each means in an image forming process is divided in each process, and is unitized, an image forming device main body 10 having a unit housing part housing plural process units 101-106, and a different process unit driving means disposed in plural different process units 101-106. Therefore some of process units are selected from the units 101-106, connected to the unit housing part of the image forming device main body, and housed therein to execute a desired image forming mode.

5. 发明专利

JPH05188923A IMAGE DISPLAY DEVICE 失效
公开(公告)号：JPH05188923A
公开(公告)日：1993-07-30
申请号：JP8538091
申请日：1991-04-17
申请人： RICOH KK
发明人： MIURA MIKIO
IPC分类号： G06F3/153 , G09G5/36 , G09G5/377 , G09G5/40
摘要： PURPOSE:To improve the quality of various displays accompanying area specification. CONSTITUTION:A CPU 1 sets a display start address, the number of horizontal characters, the number of vertical characters, etc., for a display control circuit 6 and a timing generator 7. The display control circuit 6 outputs a graphic code from a GC.RAM 3 according to the frame synchronizing signal of the timing generator 7 and also outputs display data from a CC.RAM 4 to load them in a composing circuit 11. The two kind of data loaded in the composing circuit 11 are shifted by the previously set number of bits by the CPU1, logically put together after painting-out processing, and then transferred as display data to a display part.

6. 发明专利

JPH04261588A IMAGE DISPLAY DEVICE 失效
公开(公告)号：JPH04261588A
公开(公告)日：1992-09-17
申请号：JP14518291
申请日：1991-05-22
申请人： RICOH KK
发明人： MIURA MIKIO
IPC分类号： G06F3/14 , G06F3/048 , G06T3/60 , G09G5/32 , G09G5/34
摘要： PURPOSE:To improve the display picture quality by moving an image by a dot unit in the horizontal direction by synchronizing with a display cycle. CONSTITUTION:The device is provided with a GC. RAM 3 (CC. RAM 4) for storing parallel display data, a shift amount register which is provided on horizontal shift circuits 16, 17 and to which a shift amount in the horizontal direction is set in advance, a counter for outputting pulses of the number corresponding to the shift amount set to the shift amount register synchronously with a display timing, a display control circuit 7 for reading out the parallel display data synchronously with the display timing, and also, setting the shift amount in the horizontal direction of this display data to the shift amount register, a parallel-in/parallel-out register for loading the read-out parallel display data, and shifting it in the horizontal direction in accordance with the number of pulses of the counter, and a serial-in/parallel-out register for inputting display data outputted from the register, and shifting it in the horizontal direction in accordance with the number of pulses of the counter.

7. 发明专利

JPH04158667A COPYING MACHINE 失效
公开(公告)号：JPH04158667A
公开(公告)日：1992-06-01
申请号：JP28551390
申请日：1990-10-22
申请人： RICOH KK
发明人： MIURA MIKIO , ISHIKAWA TOYOJI , SATO MITSURU , MURAISHI TAKAYA
IPC分类号： G03G15/36 , B41J2/44 , G03G15/00 , G03G15/04 , G03G21/00 , H04N1/00
摘要： PURPOSE:To improve the operability of original position matching by displaying picture information of an original placed on an original platen onto a display means before image forming by an image forming means. CONSTITUTION:An operation panel control section 21 controls an LCD unit 25 based on a digital value converted by a picture read section 9 before image forming by an image forming means 18 to display picture information of an original 2 placed on a contact glass 1 onto the LCD unit 25. Thus, the operator can easily confirm the original position on the contact glass 1 before image forming without a trial copy. Then the operability of original position matching is improved, and this method is effective especially when the original size is larger than a copy area and the copy area differs from the standard size.

8. 发明专利

JPH04107571A BOTH-SIDED IMAGE FORMING DEVICE 失效
公开(公告)号：JPH04107571A
公开(公告)日：1992-04-09
申请号：JP22719090
申请日：1990-08-29
申请人： RICOH KK
发明人： MIURA MIKIO
IPC分类号： B41J13/00 , B65H15/00 , B65H83/02 , G03G15/00
摘要： PURPOSE:To reverse a transfer paper without decreasing a carrying speed and to make a processing speed higher by forming a spiral path in a sub carrying path and allowing the transfer paper to pass through the spiral path and half-rotate so that one side of the transfer paper may be turned over to the other side. CONSTITUTION:This device is provided with a main carrying path 13 for carrying the transfer paper P to a transfer position from any of paper feeding trays 11A-11C in order to transfer an image on a photosensitive body 7 to one side of the transfer paper P, and the sub carrying path 14 which receives the transfer paper P where the image is transferred, reverses and fees it to the main carrying path 13 again in order to form the image on the other side. Then, the spiral path 21 is formed in the sub carrying path 14, and the transfer paper P is allowed to pass through the path 21 and half-rotate so that one side thereof may be turned over to the other side. Since the transfer paper P is reversed and the image is formed on the other side without temporary stop, the processing speed is made higher by almost as much as non-stop processing.

9. 发明专利

JPH04107472A CONTROLLER FOR COPYING MACHINE 失效
公开(公告)号：JPH04107472A
公开(公告)日：1992-04-08
申请号：JP22423590
申请日：1990-08-28
申请人： RICOH KK
发明人： MIURA MIKIO
IPC分类号： G03G21/00 , G03G15/00 , G03G15/20
摘要： PURPOSE:To improve operability when a copying mode is set after the designation of copying start is received by enabling the change of various kinds of copying modes by a mode change means even under a standby state after the designation of the copying start is received during the warming-up of a copying machine. CONSTITUTION:A mode selection key 3 is depressed and a mode is compared with the present mode. When there is the point of changing, the mode is changed. Next, the data of an A/D converter 11 is read and it is judged whether the temperature of a fixing heat roller is over set temperature or not. When it is not over, a print key is received. However, when it is over, the preparation of the copying is regarded to be finished. By constituting a controller 7 in such a way, the mode can be changed even after the standby state is attained by depressing the print key 1 after the mode for the copying is set during the warming-up of the copying machine. Thus, the copying machine having the excellent operability is obtained.

10. 发明专利

JPH03180860A IMAGE FORMING DEVICE 失效
公开(公告)号：JPH03180860A
公开(公告)日：1991-08-06
申请号：JP31886389
申请日：1989-12-11
申请人： RICOH KK
发明人： KAWAISHI YASUNORI , IKESUE MASUMI , ISHIKAWA TOYOJI , MIURA MIKIO , SATO MITSURU
IPC分类号： G03G15/00 , G03G15/08 , G03G21/00 , G03G21/10
摘要： PURPOSE:To carry out the operation of bringing into contact and separating operating members against a photosensitive body with a simple constitution by bringing into contact and separating operating members, such as a developing part and a cleaning part with the photosensitive body by one operating means. CONSTITUTION:When a front cover 15 is closed, operating projections 14a and 14b are abutted to pressure plates 13a and 13b, plate springs 12a and 12b are rotated by rotating shafts 11a and 11b, the developing part 6 and the cleaning part 7 are brought close to or into contact with a photosensitive body belt 2 against repulsive force of springs 16a and 16b. When the cover 15 is released, since the abutting of the projections 14a and 14b with the pressure plates 13a and 13b are released, the plate springs 12a and 12b are freed, therefore the developing part 6 and the cleaning part 7 receive tension force of the springs 16a and 16b and are simultaneously rotated in the direction separating from the photosensitive body belt 2 with the rotating supporting shafts 9a and 9b as centers.

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