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1. 发明专利

JPH04181292A DISPLAY SIGNAL CONTROL SYSTEM 失效
公开(公告)号：JPH04181292A
公开(公告)日：1992-06-29
申请号：JP30892190
申请日：1990-11-16
申请人： HITACHI LTD , HITACHI COMPUTER ELECTRONIC
发明人： OSHIMA TOSHIYOSHI , TOMIMATSU KAZUFUMI , IWAI MASAHIRO , HIROTA TAMOTSU , YAGINUMA ATSUSHI
IPC分类号： G09G5/00 , G09G5/12 , G09G5/18
摘要： PURPOSE:To allow the display optimum for a display by sending the frequency mode with which a discrimination signal output circuit provided on the display can deal to a host device. CONSTITUTION:The frequency mode of the display is outputted from the discrimination signal output circuit 2 in the display device 1 to a microprocessor 4 of the host device 3. The microprocessor 4 receiving the signal decides a dot clock and horizontal and vertical deflection frequencies as the frequency mode of the display. This information is calculated by equation 1, equation 2 indicating the number of the horizontal and vertical dots which can be displayed on a screen. The information is then transmitted as a signal S1 to a program control circuit 5. The program control circuit 5 forms a timing chart for display. The use of the display device of the single frequency mode for all the host system devices 3 is possible and the display is made always at the center of the screen without adjustment.

2. 发明专利

JPS63311364A MULTICOLOR RECORDER 失效
公开(公告)号：JPS63311364A
公开(公告)日：1988-12-20
申请号：JP14873787
申请日：1987-06-15
申请人： HITACHI LTD , HITACHI COMPUTER ELECTRONIC
发明人： HIROTA TAMOTSU , MIDORIKAWA KANJI , KOTAKE TAKASHI
IPC分类号： G03G9/09 , G03G9/08 , G03G15/01
摘要： PURPOSE:To record a distinct colored image at a high speed by radiating a light beam by which at least one of intensity and wavelength is varied based on image information on a photosensitive body to which a specific toner is adsorbed, and executing separately or simultaneously development and coloring. CONSTITUTION:The titled recorder is provided with a toner 11 colored in different colors in accordance with wavelength of a radiated light beam, and exposing means 3, 5 for radiating a light beam by which at least one of intensity and wavelength is varied based on image information for recording on a photosensitive body 1 to which the toner 11 is adsorbed, so that development and coloring by the toner 11 can be executed separately or simultaneously. The toner 11 is colored in different colors in accordance with wavelength of a radiated light beam, therefore, it is unnecessary to provide plural developing devices, etc., the structure is simplified, and also, the wavelength of the light beam radiated on the toner 11 is varied. In such a way, a colored image by coloring of the toner is formed by one process, therefore, a distinct colored image can be recorded at a high speed.

3. 发明专利

JPH06289389A LIQUID CRYSTAL DISPLAY SYSTEM 失效
公开(公告)号：JPH06289389A
公开(公告)日：1994-10-18
申请号：JP7934793
申请日：1993-04-06
申请人： HITACHI LTD , HITACHI COMPUTER ELECTRONIC
发明人： HIROTA TAMOTSU , HARUYAMA KAZUHIRO , KOGOORI FUMIHIRO
IPC分类号： G02F1/1335 , G02F1/13357 , G09G3/36
摘要： PURPOSE:To uniformize liquid crystal temperature characteristics in a panel surface by mounting a heater, or a heat conductive body on the panel surface and adjusting the temperature characteristics of the liquid crystal so that the optimum value can be obtained as a panel surface temperature. CONSTITUTION:The transparent heater 6 for forcibly increasing the temperature of the liquid crystal panel 3 is mounted in between the liquid crystal panel 3 and the photoconductive body 7, and then, the temperature of the transparent heater 6 is adjusted so that it may rise up to the highest temperature of the liquid crystal panel 3, so that the panel surface temperature of the liquid crystal panel 3 is uniformly controlled. At this time, the temperature characteristics of the liquid crystal material is adjusted so that the best contrast can be obtained by the panel temperature. By such a constitution, a light source for a back light same as the conventional one can be also used irrespective of kinds of light sources used for the back light, the display quality of the liquid crystal panel 3 can be improved, and also, the device having an outside dimension same as the conventional one can be produced.

4. 发明专利

JPH06338369A IC MEASURING JIG 失效
公开(公告)号：JPH06338369A
公开(公告)日：1994-12-06
申请号：JP12875093
申请日：1993-05-31
申请人： HITACHI LTD , HITACHI VIDEO & INF SYST , HITACHI COMPUTER ELECTRONIC
发明人： DOI KIYOTAKA , TAKAGI TSUTOMU , YOSHIDA NAOMI , WASHITANI NOBUHIRO , MASUYAMA KANJI , AKIBA SHIGETOSHI , YOSHIKAWA NAOMI , ABE HITOSHI , SEKIGUCHI MASAYORI , HIROTA TAMOTSU
IPC分类号： H01R33/76
摘要： PURPOSE:To easily fit or remove a measuring probe to or from contact pins by providing a housing holding the contact pins so as to be brought into contact with lead pins of an IC on the back face of a substrate. CONSTITUTION:A housing 4 storing springs 6 and contact pins 5 is fitted so that its opening section faces the back face of a substrate 3, and, lead pins 2 of an IC 1 are brought into contact with the contact pins 5. Since the contact pins 5 are pressed to the lead pins 2 by the excitation of the springs 6 toward the housing opening section of the housing 4, the contact state with the lead pins 2 is kept satisfactory. When a measuring probe 7 is connected to a contact pin 5, the electric measurement and analysis of the operation of the IC 1 mounted on the substrate 3 can be made.

5. 发明专利

JPH04349547A IMAGE MEMORY CONTROL METHOD AND IMAGE MEMORY DEVICE 失效
公开(公告)号：JPH04349547A
公开(公告)日：1992-12-04
申请号：JP12110491
申请日：1991-05-27
申请人： HITACHI LTD , HITACHI COMPUTER ELECTRONIC , HITACHI VIDEO & INF SYST
发明人： DOI KIYOTAKA , MASUYAMA KANJI , TAKAGI TSUTOMU , ABE HITOSHI , TAJIMA KATSUTOSHI , HIROTA TAMOTSU
IPC分类号： G06F12/06 , G06T1/60 , G09G5/00 , G09G5/391 , G11C7/00 , G11C7/10
摘要： PURPOSE:To improve the processing speed by writing non-interlace image data alternately in odd numbered and even numbered field memories by a plural dot unit at every one line, and controlling write and read-out of the data in which dots of odd numbered and even numbered fields are mixed. CONSTITUTION:4 picture element image data outputted from a computer 1 are written in odd numbered field memories 4a-7a in order of a first dot to a 650-th dot. Subsequently to a 649-th dot and a 650-th dot, a first dot e1 and a second dot e2 of the next line are written in the odd numbered field memories 4a-7a, and simultaneously, the same image data are written in even numbered field memories 4b-7b, as well. A third dot to a 650-th dot of the next line are written in the even numbered field memories 4b-7b by collecting 4 dots each in a lump. When the data is read out of an image memory, and subjected to parallel/serial conversion, for instance, in the odd numbered field, the dots e1, e2 become invalid.

6. 发明专利

JPH04184622A METHOD AND DEVICE FOR CONTROLLING DISPLAY 失效
公开(公告)号：JPH04184622A
公开(公告)日：1992-07-01
申请号：JP31562090
申请日：1990-11-20
申请人： HITACHI LTD , HITACHI COMPUTER ELECTRONIC
发明人： IWAI MASAHIRO , OSHIMA TOSHIYOSHI , TOMIMATSU KAZUFUMI , YAGINUMA ATSUSHI , HIROTA TAMOTSU
IPC分类号： G06F3/153
摘要： PURPOSE:To automatically adjust a screen to its optimum position and optimum size by adding the identification signal indicating the frequency and the timing of the synchronous signal outputted to a display device from each CPU to the flyback time of the synchronous signal and detecting the identification signal. CONSTITUTION:A signal S5 selected optionally by a switcher 8 by the control of a system control part 5 included in a computer 1 is separated into a synchro nous signal S1 and a video signal S2 by the switcher 8. The signal S2 is directly transferred to a display device 2. In regard of the signal S1 consisting of the horizontal and vertical synchronizing signals outputted from a CPU 6 or 7, a specific identification signal that identifies a CPU is added to the flyback time of the signal S1 by an adding circuit 3. When a signal S6 is inputted, a control circuit 4 takes out an identification signal S5 added in the computer 1 and converts the input synchronizing signal into a signal S7 that can secure the optimum display of the screen position based on the information of the signal S5. The signal S7 is outputted to a deflecting circuit 12. Thus the opti mum display is ensured to both CPU 6 and 7.

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