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61. 发明专利

JPH09139855A COLOR CORRECTION METHOD, COLOR CORRECTION DEVICE, COLOR CORRECTION APPLICATION EQUIPMENT AND COLOR IMAGE SYSTEM 失效
公开(公告)号：JPH09139855A
公开(公告)日：1997-05-27
申请号：JP29568695
申请日：1995-11-14
申请人： MITSUBISHI ELECTRIC CORP
发明人： SATO TSUNEO , SAITO MASAYUKI
IPC分类号： B41J2/525 , G03F3/08 , G06T5/00 , H04N1/46 , H04N1/60
摘要： PROBLEM TO BE SOLVED: To provide the color correction method not unbalancing color balance and the adjustment method for optimum color correction. SOLUTION: The method is provided with a conversion step 21 to convert an input of an RGB signal or a CMY signal into a CIEXYZ signal and an inverse conversion step 23 restoring the CIEXYZ signal into the RGB signal or the CMY signal. A matrix used for the conversion step 21 is given as a sum of a 1st matrix and a 2nd matrix independently of each other obtained by two vectors dividing a chromatic vector into a direction in parallel with an achromatic vector and a direction perpendicular to the direction of the achromatic vector. A matrix used for the inverse conversion step 23 is obtained by the inverse matrix of the matrix above.

62. 发明专利

JPH05185676A RECORDER 失效
公开(公告)号：JPH05185676A
公开(公告)日：1993-07-27
申请号：JP530392
申请日：1992-01-16
申请人： MITSUBISHI ELECTRIC CORP
发明人： SAITO MASAYUKI , ONISHI MASARU
IPC分类号： B41J2/325 , B41J13/22
摘要： PURPOSE:To obtain a recorder which can comprise a normal recording head, easily feed a recording medium, and reduce a misregistration in overlapping colors by using a small-diameter platen. CONSTITUTION:Recording paper 1 is fetched out of a paper supply mechanism. The leading end of the recording paper 1 is fixed by a clamping mechanism 8. The recording paper 1 is wound on a paper feed belt 5 by rotating the clamping mechanism 8 on the paper feed belt 5. At this time, if the clamping mechanism 8 passes between a platen roller 4 and a thermal head 3, the thermal head 3 is required to be retracted by a thermal head retraction mechanism. The rectaction mechanism can be composed of. e.g. a spring and a solenoid. Normally, the thermal head 3 is pressed in a direction shown by an arrow A by the spring to be brought into pressure contact with the paten roller 4. When the thermal head 3 is to be retracted, it can be retracted in a direction shown by an arrow B by turning the solenoid ON.

63. 发明专利

JPH04351570A RECORDING DEVICE 失效
公开(公告)号：JPH04351570A
公开(公告)日：1992-12-07
申请号：JP12587391
申请日：1991-05-29
申请人： MITSUBISHI ELECTRIC CORP
发明人： SAITO MASAYUKI , ONISHI MASARU
IPC分类号： B41J11/00 , B41J13/22
摘要： PURPOSE:To make one end of a recording medium tense by its own weight and prevent a recording sheet from running meandering or obliquely without preparation of a special mechanism by providing a clamping mechanism which holds the other end of the recording medium and moves it vertically and a guide part which guides one end of the recording medium downward. CONSTITUTION:After the completion of recording data by the specified number of colors, a thermal head 3 is separated from a platen roller 4 using a DC motor 26 and the platen roller 4 is rotated by a pulse motor 18 to return a recording sheet 1. At the same time, a clamping mechanism 10 is moved upward by a pulse motor 11. If the arrival of the clamping mechanism 10 at a position where it holds the sheet is detected, the pulse motors 11, 18 are stopped and a cam 31 is rotated using a DC motor 32 to separate a movable claw 28 from a fixed claw 27 and subsequently release the recording sheet 1 from the clamping mechanism 10. After that, only the pulse motor 18 is driven to store the recording sheet 1 in a stacker 37.

64. 发明专利

JPH0499655A COLOR RECORDER 失效
公开(公告)号：JPH0499655A
公开(公告)日：1992-03-31
申请号：JP21787190
申请日：1990-08-17
申请人： MITSUBISHI ELECTRIC CORP
发明人： SAITO MASAYUKI
IPC分类号： B41J2/525 , B41J2/325 , B41J2/35
摘要： PURPOSE:To correct a density irregularity generated due to irregularities in the contact of a head, a resistance value, and to print in a uniform density by holding recording characteristics at command for transferring the characteristic from a recorder to an interface and at the interface side. CONSTITUTION:Density irregularity correction values corresponding to dots of a thermal head 1 are previously stored in a ROM 17 of a printer 21, the value is read by a CPU 18, and transferred to an interface 20 through a printer interface 11. A CPU 19 once writes and stores the received correction value in a RAM 13. The CPU 19 receives image data from a host computer 16, and stores it in a page memory 15. after data of one page are received, the correction data and the image data in the RAM 13 are, when the data are transferred to the printer 21, transferred to the printer 21 while calculating them.

65. 发明专利

JPH031867B2 失效
公开(公告)号：JPH031867B2
公开(公告)日：1991-01-11
申请号：JP21229081
申请日：1981-12-25
申请人： MITSUBISHI ELECTRIC CORP
发明人： SAITO MASAYUKI , OONISHI MASARU
IPC分类号： H04N1/387 , G06T3/00 , G06T3/40 , H04N1/409

66. 发明专利

JPH027221B2 失效
公开(公告)号：JPH027221B2
公开(公告)日：1990-02-16
申请号：JP10439483
申请日：1983-06-10
申请人： MITSUBISHI ELECTRIC CORP
发明人： OONISHI MASARU , SAITO MASAYUKI
IPC分类号： B41J2/36 , B41J2/325 , H04N1/23 , H04N1/40

67. 发明专利

JPS63216764A RECORDING METHOD BY THERMAL HEAD 失效
公开(公告)号：JPS63216764A
公开(公告)日：1988-09-09
申请号：JP5020687
申请日：1987-03-06
申请人： MITSUBISHI ELECTRIC CORP
发明人： SAITO MASAYUKI , ONISHI MASARU
IPC分类号： B41J2/355
摘要： PURPOSE:To constantly maintain recording in a one-dot recording condition, conform control of recording to the conditions for one-dot recording and restrain density from being varied according to record patterns, by separating record dots constituting a block for simultaneous recording from each other by a predetermined number of dots, and recording in a split manner on a block basis so that adjacent dots are not recorded in a continuous manner. CONSTITUTION:The collectors of driving transistors 7 of a thermal head are connected to a common electrode 2 through discrete electrodes 3 and heat generating resistors 1, respectively. A strobe signal 9 is applied to one input of each AND circuit 8, whereas image data 10 is applied to the other input, and the output side of the circuit 8 is connected to the base of the transistor 7. The resistors 1 for simultaneous recording are separated from each other by i (i >= 5) dots, and adjacent ones of the resistors are prevented from being energized to record in a continuous manner. Therefore, each of the resistor is not effected by the thermal history of the surrounding resistors, and recording can be performed in a one-dot recording condition.

68. 发明专利

JPS63160856A THERMAL PRINTER 失效
公开(公告)号：JPS63160856A
公开(公告)日：1988-07-04
申请号：JP30772486
申请日：1986-12-25
申请人： MITSUBISHI ELECTRIC CORP
发明人： YAMADA KEIKI , SAITO MASAYUKI , OKA KENICHIRO , ISHIKAWA MASAKAZU , KIMURA HIROMI , HATABE ETSUO
IPC分类号： B41J2/36 , B41J2/35
摘要： PURPOSE:To permit designated colors to be realized exactly according to the different conditions of faces to be transferred by providing a select signal generator to select whether to store input recording signals in any of the first and second memory circuits and a line data-forming circuit to detect the conditions of faces to be transferred by output signals of the first and second memory circuits and recording signals. CONSTITUTION:When recording signal of Mazenta is applied to an input terminal 1, the second memory circuit 4 is selected by a signal from a select signal generator 2. Recording signal for one line is put in the circuit 4 and a line data-forming circuit 5, and recording signal of yellow previously recorded is put in the circuit 5 concurrently from the first memory circuit 3. In the circuit 5, the recording signal of Mazenta is divided into a flat ink surface condition B, a flat paper surface condition A, and a recessed paper surface condition C, line data for each are formed, and signals showing the three conditions are supplied to a control circuit 6. Current of pulse width corresponding to each condition is supplied to the control circuit 6.

69. 发明专利

JPS62282956A HEAT CONTROL UNIT OF THERMAL RECORDING APPARATUS 失效
公开(公告)号：JPS62282956A
公开(公告)日：1987-12-08
申请号：JP7164286
申请日：1986-03-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： SAITO MASAYUKI , YAMADA KEIKI , YOSHIMOTO YASUHIRO , HATABE ETSUO
IPC分类号： B41J2/36 , B41J2/365 , B41M5/382
摘要： PURPOSE:To obtain uniform recording density, by estimating the degree of the effect on the heat accumulation of a thermal head from a recording cycle and a printing ratio and calculating the correction quantity of heat accumulation from the cumulative value thereof at every row and the circumferential temp. before the heat accumulation of the thermal head and setting the recording time of the thermal head from said correction quantity and an optimum recording time in a heat not-accumulated state. CONSTITUTION:A recording cycle 9 calculating a recording cycle from a data source 6 and a printing ratio counter 8 similarly calculating a printing ratio therefrom at every one line are mounted. Further, a heat accumulation correcting circuit 10 for estimating the heat accumulation quantity of a thermal head 7 from the recording cycle and the printing ratio to set an optimum recording time to be applied on the basis of the obtained correction value and a thermal head driver 11 supplying a current to the thermal head 7 on the basis of the output of said circuit 10 are mounted. By setting the optimum recording time based on the correction quantity of heat accumulation by this constitution, uniform recording density not affected by the circumferential temp. and heat accumulation of the thermal head 7 can be obtained.

70. 发明专利

JPS6218867A IMAGE PROCESSING METHOD 失效
公开(公告)号：JPS6218867A
公开(公告)日：1987-01-27
申请号：JP15756585
申请日：1985-07-17
申请人： MITSUBISHI ELECTRIC CORP
发明人： SAITO MASAYUKI , ONISHI MASARU
IPC分类号： H04N1/23 , B41J2/52 , B41J3/00 , G06F3/12 , G06K15/00
摘要： PURPOSE:To smooth staircase-shaped parts of a character by detecting slanting edges of an original pattern by using a standard pattern and using a corresponding slanting pattern having a predetermined density distribution as recording data when a slanting edge is detected. CONSTITUTION:The standard pattern 8 is moved on the original pattern by one picture element at every time, density values of reference picture elements corresponding to respective picture elements of the standard pattern 8 and an aimed picture element 6 are multiplied by values on the standard pattern 8, and the sum of multiplication results as to the respective picture elements is calculated, thereby judging a slanting line that the standard pattern 8 has when the sum is larger than some threshold value. When a slanting edge is judged, it is used as recording data on picture elements of the corresponding slanting pattern 20 of the standard pattern 8. A figure shows that picture elements 9 and 10 correspond to a slanting pattern in a figure (i), picture elements 11 and 12 to a slanting pattern in a figure (j), a picture element 13 to a slanting pattern in a figure (k), and a picture element 14 to a slanting pattern in a figure l.

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