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1. 发明专利

JP2565986B2 失效
公开(公告)号：JP2565986B2
公开(公告)日：1996-12-18
申请号：JP16360688
申请日：1988-06-30
申请人： FUJITSU LTD
发明人： KIMURA MASATSUGU , KARYA NORIJI , ASANO TOORU
IPC分类号： G06F3/045 , G06F3/03 , G06F3/033 , G06F3/041

2. 发明专利

JPH03164825A TOUCH COORDINATE INPUT DEVICE 失效
公开(公告)号：JPH03164825A
公开(公告)日：1991-07-16
申请号：JP30393289
申请日：1989-11-22
申请人： FUJITSU LTD
发明人： KIMURA MASATSUGU , KARIYA NORIJI , NISHIGAYA TAKAMITSU
IPC分类号： G06F3/044 , G06F3/03
摘要： PURPOSE:To measure contact position coordinates of a pointing material without hardware reset by updating a non-contact impedance at the time when the non-contact state is discriminated continuously a set number of times and a measured impedance is lower than the non-contact impedance by a set value or more. CONSTITUTION:When something other than the pointing material approaches or comes into contact with a touch panel 1 for a long time, (normally, several tens seconds), the contact state is discriminated continuously a set number M3 of times and the non-contact impedance is updated by a first non-contact impedance updating means 6. The non-contact impedance in this case is gener ally lower than that for contact of the pointing material (normally, a finger). Consequently, contact position coordinates of the pointing material on the touch panel 1 can be obtained. If the non-contact state is discriminated continuously a set number M1 of times by a second non-contact impedance updating means 7, the non-contact impedance is updated. Thus, contact of the pointing material is detected to measure the position coordinates without hardware reset.

3. 发明专利

JPH02157921A TOUCH COORDINATE DETECTOR 失效
公开(公告)号：JPH02157921A
公开(公告)日：1990-06-18
申请号：JP31138488
申请日：1988-12-09
申请人： FUJITSU LTD
发明人： KIMURA MASATSUGU , KARIYA NORIJI , ASANO TORU
IPC分类号： G06F3/045 , G06F3/03 , G06F3/041 , G06K11/06
摘要： PURPOSE:To prevent the erroneous detection of contact position coordinates due to the influence of a flaw, etc., on a resistance film by connecting a first power source terminal through a resistor to one terminal, connecting a second power source terminal to the other terminal and providing a voltage measuring circuit to measure the terminal voltage of the resistor. CONSTITUTION:For example, the flaw, etc., is attached in a position shown by X on a resistance film 3. The resistance value of the resistance film 3 is made high by DELTARx by the flaw, etc., and goes to be (Rx+R1-x+DELTARx). On the other hand, since the resistance value of a resistor 1 is R0 and fixed, the terminal voltage of the resistor 1 goes to be R0.Vcc/(R0+Rx+R1-x+DELTARX) and it is a reference voltage. Thus, an alarm signal is generated by a voltage measuring circuit 4 and supplied to an MPU and it is informed of the MPU that the resistance value of the resistance film 3 is changed. Thus, before next impedance measurement is started, the MPU can know that the resistance value of the resistance film 3 is changed.

4. 发明专利

JPH02156322A TOUCH COORDINATE DETECTOR 失效
公开(公告)号：JPH02156322A
公开(公告)日：1990-06-15
申请号：JP31056588
申请日：1988-12-08
申请人： FUJITSU LTD
发明人： ASANO TORU , KARIYA NORIJI , KIMURA MASATSUGU
IPC分类号： G06F3/045 , G06F3/03 , G06F3/033 , G06F3/041 , G06F3/044 , G06K11/06
摘要： PURPOSE:To prevent erroneous detection of contact position coordinates due to noise by increasing the time constant of an integrator in a variable oscillator and stopping counting for impedance measurement for a time longer than the time when the output voltage of the integrator is unstable. CONSTITUTION:A timing generator 35 generates a trigger pulse (b) synchonously with a switch element driving pulse (a), and this pulse (b) is inputted to a monostable multivibrator MM 44 to output a pulse (c) in the high level for a certain time Tw, and an oscillation pulse (d) from a variable oscillator 20 is inputted to a counter 46 through an AND circuit 45 for the time TW and is counted. Consequently, a terminal L1 of a touch panel 21 and a terminal R1 are connected to the input terminal and the output terminal of a voltage follower 43 respectively by the first pulse (a), and in this state, the counted value of pulses (d) obtained by the counter 46 is taken into a microcomputer by the rise of the pulse (b). Terminal L2 to Ln are successively connected to terminals of the voltage follower 43 in the same manner to obtain the counted value and an impedance calculated value based on the counted value. The counter 46 stops counting when the pulse (c) is in the low level.

5. 发明专利

JP2564681B2 失效
公开(公告)号：JP2564681B2
公开(公告)日：1996-12-18
申请号：JP7236290
申请日：1990-03-20
申请人： FUJITSU LTD
发明人： KARYA NORIJI , KIMURA MASATSUGU , NISHIGAYA TAKAMITSU
IPC分类号： G06F3/044 , G06F3/03 , G06F3/041 , G06F3/048

6. 发明专利

JPH08297480A DISPLAY CONTROL METHOD AND DEVICE AS WELL AS DISPLAY DEVICE USING THE SAME 失效
公开(公告)号：JPH08297480A
公开(公告)日：1996-11-12
申请号：JP10354795
申请日：1995-04-27
申请人： FUJITSU LTD
发明人： KIMURA MASATSUGU , YAO SHINPEI , FUJISAKI TAKASHI
IPC分类号： G06F3/147 , G09G3/20 , G09G3/28 , G09G3/288 , G09G3/291 , G09G3/294 , G09G3/296 , G09G3/298 , G09G5/10
摘要： PURPOSE: To provide a display control method and device capable of correcting difference in the chromaticity in visual sensation due to difference in the light emission characteristics of phosphors corresponding to respective colors and the nonuniformity of luminance by difference in the light emission characteristics arising from variations in production. CONSTITUTION: The frame data corresponding to one frame in the data to be displayed is subjected to time division into plural sub-frame data SFD including color information indicating one color and luminance information indicating one luminance. Display is controlled in accordance with the sub-frame data SFD. Since the correction and control of the luminance by each of the respective colors are possible, the differences in the chromaticity and the nonuniformity of the luminance are correctable with each of the respective colors. The correcting means for luminance correction has the memory means storing the correction data corresponding to the characteristics of the respective display means, such as PDP and, therefore, the dealing with plural kinds of luminance correction with one correcting means is possible.

7. 发明专利

JPH08101661A DEVICE AND METHOD FOR MULTI-LEVEL DISPLAY 失效
公开(公告)号：JPH08101661A
公开(公告)日：1996-04-16
申请号：JP23891794
申请日：1994-10-03
申请人： FUJITSU LTD
发明人： YAO SHINPEI , KIMURA MASATSUGU
IPC分类号： G09F9/313 , G09G3/20 , G09G3/28 , G09G3/296 , H01J17/49
摘要： PURPOSE: To secure widely the drive voltage range of the whole display picture and to improve display quality and yield by contriving supply method of drive voltage performing gradation expression and correcting central potential of the drive voltage range deviating at every display picture related to improvement of a multi-level display device. CONSTITUTION: This device is provided with a power source control means varying source voltage Va for every N sheets of display pictures according to voltage correction values allocated for every N sheets of display pictures and outputting the variable voltage as the central potential of the drive voltage range adjusting the luminance of the display picture. A control means is provided with a storage circuit 11 storing the voltage correction value allocated for every N sheets of display pictures, a read-out circuit 12 reading out the corresponding voltage correction value for every N sheets of display pictures, a conversion circuit 13 digital/analog converting the voltage correction value, a power source circuit 14 varying the source voltage Va based on an analog voltage value and outputting the drive voltages Vb1-VbN and a control circuit 15 output controlling the read-out circuit 12 based on display information and a display control signal.

8. 发明专利

JPH05173699A COORDINATE INPUT DEVICE 失效
公开(公告)号：JPH05173699A
公开(公告)日：1993-07-13
申请号：JP33902891
申请日：1991-12-20
申请人： FUJITSU LTD
发明人： TAJIMA MASAYA , KARIYA NORIJI , KIMURA MASATSUGU
IPC分类号： G06F3/042 , G06F3/03 , G06F3/041 , G06F3/048
摘要： PURPOSE:To prevent wrong coordinate output due to a noise as to the optical system coordinate input device which is constituted by arranging pairs of light emitting and receiving elements in matrix and calculates an input coordinate position from their light quantity measured values. CONSTITUTION:The pairs of light emitting and receiving elements are driven, pair by pair, and the quantities of received light of the light receiving elements are measured to calculate coordinates from the positions of the light emitting element and light receiving element whose optical path is cut off (step 107). The quantity of light between the pair of light emitting and receiving elements at (b)th positions corresponding to the calculated coordinates is measured again (step 108), and it is decided whether the optical path is cut off or not (step 109). Only when the optical path is cut off, it is judged that the calculated coordinates are manually inputted coordinates, and coordinate output is performed (step 11).

9. 发明专利

JPH05127808A TOUCH COORDINATE INPUT DEVICE 失效
公开(公告)号：JPH05127808A
公开(公告)日：1993-05-25
申请号：JP28762191
申请日：1991-11-01
申请人： FUJITSU LTD
发明人： TAJIMA MASAYA , KARIYA NORIJI , KIMURA MASATSUGU
IPC分类号： G06F3/044 , G06F3/03 , G06F3/041 , G06F3/048
摘要： PURPOSE:To obtain the touch coordinate input device improved for a user to omit a coordinate adjusting process with manual operation each time the device is used by automatically adjusting coordinates each time the device is used concerning the touch coordinate input device in an electrostatic capacity system. CONSTITUTION:At the touch coordinate input device in the electrostatic capacity system, electrodes 61 for coordinate adjustment are diagonally provided at least at the intersections of coordinate axes forming the border of touch panel coordinate detecting areas, a capacitor 63 grounding another pole is connected through an analog switch 62 to these respective electrodes 61 for coordinate adjustment. A coordinate adjusting means 7 is provided to set the electrodes for coordinate adjustment as coordinate origins in the case of starting the use, and this touch coordinate input device automatically execute the same process as a process, which is manually operated by the user at a touch coordinate input device concerning conventional technique, each time the use is started.

10. 发明专利

JPH05127807A TOUCH COORDINATE INPUT DEVICE 失效
公开(公告)号：JPH05127807A
公开(公告)日：1993-05-25
申请号：JP28696991
申请日：1991-11-01
申请人： FUJITSU LTD
发明人： TAJIMA MASAYA , KARIYA NORIJI , KIMURA MASATSUGU
IPC分类号： G06F3/044 , G06F3/03 , G06F3/041 , G06F3/048
摘要： PURPOSE:To eliminate the danger of erroneous inputs without operation/input of coordinates by detecting damage when it is in the conductive layer of a touch panel at the touch coordinate input device in an electrostatic capacity system, and stopping following scan when there is the damage. CONSTITUTION:This touch coordinate input device is equipped with a touch panel 1 mutually insulating and juxtaposing rectangular touch panel elements 11, touch panel scanning means 6a and 6b to successively turn these respective touch panel elements 11 to the conductive state, measuring direction switching means A to switch a measuring direction during the respective conducting periods of the touch panel elements 11, impedance measuring means B to measure the respective impedances of the touch panel elements each time this measuring direction switching means switches the measuring direction, and touch panel damage presence/absence judging means F to judge whether the touch panel elements are damaged or not each time this impedance measuring means is operated.

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