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1. 发明专利

JPH01121704A SIZE MEASURING INSTRUMENT 失效
公开(公告)号：JPH01121704A
公开(公告)日：1989-05-15
申请号：JP27926987
申请日：1987-11-06
申请人： HITACHI ELECTRONICS , HITACHI LTD
发明人： NISHIDA TAKEHIKO , SHIMAZAKI KENICHI , IMAI KEIJI , KOBAYASHI MAMORU
IPC分类号： G01B11/00
摘要： PURPOSE:To measure plural positions of a body even in a complicate shape with nearly continuous light by performing time-division control over respective detection parts and limiting light irradiation of only a detection part where there is no interference at any point of time during measurement. CONSTITUTION:A measuring instrument main body is equipped with a time- division switch which distributes a light irradiation and measurement indication signal 8 to respective measuring instruments on a time-division basis. Then the body 2 to be measured is mounted on an X-Y stage and moves right and left, or forward and backward. Measuring instrument detection parts 2, 3, and 4 measure the distance between the body surface and detection part. Here, when the body 1 to be measured shifts in a relative position with the detection parts 2, 3, and 4, the distances between the plane part of the object body 1 and detection parts 2, 3, and 4 are measured, so the height is found. The body 1 is moved forth and back while the measuring instrument detection parts 2, 3, and 4 are in operation so as to shorten the measurement time. During this measurement, the measurement indication signal 8 is switched by the time- division switch 9 to put one of the detection parts 2, 3, and 4 in operation at all times, so mutual light mixture is eliminated.

2. 发明专利

JPH01121706A SIZE MEASURING INSTRUMENT 失效
公开(公告)号：JPH01121706A
公开(公告)日：1989-05-15
申请号：JP27926887
申请日：1987-11-06
申请人： HITACHI ELECTRONICS , HITACHI LTD
发明人： NISHIDA TAKEHIKO , SHIMAZAKI KENICHI , IMAI KEIJI , KOBAYASHI MAMORU
IPC分类号： G01B11/24 , G01B11/02
摘要： PURPOSE:To preclude mismeasurement by regarding a maximum height value as the height at a measurement point in a period wherein a photodetection quantity exceeds a preset value when a measurement is taken while a single or plural points to be measured are scanned. CONSTITUTION:A specular curved surface 1 as a body to be measured is mounted on an X-Y stage which is not shown in a figure normally. Then the specular curved surface 1 moves in an X or Y direction to shift in relative position with a detection part 3, and while a beam 2 for measurement scans on the specular curved surface 1 in order, the height is measured according to a height measurement command signal 9. Namely, when the detection part 3 and body 1 to be measured shift in relative position, the beam 2 for measurement is projected on the surface of a substrate 11, the distance between the detection part 3 and substrate 1 is measured, and the height of the specular curved surface as the body to be measured is measured. Then only when the quantity of light incident on the detection part 3 decreases above a constant level, a controller 6 operates a switch 8 to obtain a height measured value 7.

3. 发明专利

JPS61164718A WIRE CUT ELECTRIC DISCHARGE MACHINE 失效
公开(公告)号：JPS61164718A
公开(公告)日：1986-07-25
申请号：JP333785
申请日：1985-01-14
申请人： HITACHI ELECTRONICS , AMADA METRECS CO
发明人： SHIMAZAKI KENICHI , HONDA AKIRA , NISHIDA TAKEHIKO
IPC分类号： B23H1/02 , B23H7/04
摘要： PURPOSE:To obtain finishing with minimum affected zone by getting the polarity of the voltage applied for electric discharge to be changed as desired and employing the negative polarity in the first stage machining and the positive polarity in the finishing stage. CONSTITUTION:A polarity selector unit is provided between an electric discharge controller 2 and a wire unit 3 including a feeder and a workpiece metal 4, and is adapted for switching the polarity of the feeder-wire unit as desired automatically or by operation of an operator. The selector unit 5 includes semiconductor switching devices 6-9, which are controlled in such a manner that the pairs of switches 6, 9 and 7, 8 are synchronously opened and closed, respectively, and all of the devices may be simultaneously opened but must not be closed simultaneously. The first stage cutting is executed with the negative polarity and the finishing stage is executed with the positive polarity, the affected zone being removed in the finishing stage.

4. 发明专利

JP2001242847A IMAGE MEMORY LSI AND IMAGE DISPLAY DEVICE USING THE SAME 失效
公开(公告)号：JP2001242847A
公开(公告)日：2001-09-07
申请号：JP2001005899
申请日：2001-01-15
申请人： HITACHI LTD
发明人： FUJITA MAKOTO , SOGA MITSURU , FUKUNAGA YASUSHI , NISHIDA TAKEHIKO
IPC分类号： G09G5/00 , G09G5/393
摘要： PROBLEM TO BE SOLVED: To provide an image memory LSI realizing high-speed plotting and a low cost in a graphic display device, and a display device using the same. SOLUTION: A memory cell for holding brightness information and window information of a pixel, a serial buffer for reading multiple pixels from the memory cell and sequentially outputting them to the outside, and a double buffer controller for selecting and outputting desired brightness information, based on the window information read from the serial buffer, among the multiple brightness information on the same coordinate read from the serial buffer, are arranged on the same chip. As a result, a high order processor can make access to a high performance image memory only by writing, therefore, the processor can operate at a high speed. Moreover, the number of signal lines can be reduced.

5. 发明专利

JPH07295547A HIGH FUNCTION IMAGE MEMORY LSI AND DISPLAY DEVICE USING THE SAME 失效
公开(公告)号：JPH07295547A
公开(公告)日：1995-11-10
申请号：JP8432894
申请日：1994-04-22
申请人： HITACHI LTD
发明人： FUJITA MAKOTO , SOGA MITSURU , FUKUNAGA YASUSHI , NISHIDA TAKEHIKO
IPC分类号： G09G5/397 , G06T1/60 , G06T11/00 , G06T15/00 , G09G5/00 , G09G5/393 , G09G5/395 , G09G5/399 , G09G5/36
摘要： PURPOSE:To write data of pixels fast through a small number of signal lines and improve the performance by performing a reading, a comparing, and a writing process, etc., for pixels at an image memory side. CONSTITUTION:A high function image memory 100 is equipped with a luminance blending part 104 which mixes luminance information on pixels and a blending coefficient that are already stored in a memory cell 101 according to luminance information and a blending coefficient that are given, and plural comparing circuits 105 for hidden plane erasure and WID comparison which determine whether or not writing is performed by comparing depth information and window information that are already stored with given depth information and window information. In this high-function image memory LSI 100, window information held in the memory cell 101 corresponding to a pixel to be written is read out and compared with window information on a pixel to be written, and it is decided whether or not the pixel is written in the memory cell 101 based on the comparison result. Similarly, the depth information is also compared to determine whether or not wirting should be done, thereby performing hidden-surface processing.

6. 发明专利

JPH04195410A CONTROLLER FOR CONNECTION/DISCONNECTION OF APPARATUS 失效
公开(公告)号：JPH04195410A
公开(公告)日：1992-07-15
申请号：JP32632890
申请日：1990-11-28
申请人： HITACHI LTD
发明人： YUNO KAZUHARU , MINEMURA TOMOKAZU , NISHIDA TAKEHIKO , SUEOKA MAMORU
IPC分类号： G06F1/26 , G06F3/00 , H04L12/40 , H04M19/00
摘要： PURPOSE:To reduce the power consumption and to improve the operation convenience by providing a variable impedance buffer which is set to a high impedance at the time of connection on disconnection of an apparatus to or from a communication line and is set to a low impedance with the apparatus connected to the communication line. CONSTITUTION:When a power settlement report signal 6 from an I/O device 61 is detected, a control circuit in a connection/disconnection controller 65 connects the signal line of the I/O device 61 to a signal line 60, which is connected to a host computer 1 or another I/O device 71, by a control signal line 63. When a power-off notice signal 5 from the I/O device 61 is detected, the control circuit 62 disconnects the signal line 64 of the I/O device 61 from the signal line 60, which is connected to the host computer 1 or another I/O device 71, by the control signal line 63. Thus, a system consisting apparatus is automatically disconnected from and reconnected to the signal line without bad influence on the other system constituting apparatuses.

7. 发明专利

JPH02178696A GRAPHIC DATA CONTROL SYSTEM 失效
公开(公告)号：JPH02178696A
公开(公告)日：1990-07-11
申请号：JP33404588
申请日：1988-12-28
申请人： HITACHI LTD , HITACHI PROCESS COMPUTER ENG
发明人： YUNO KAZUHARU , NISHIDA TAKEHIKO , ISHIKAWA KAZUHISA , AKATSU MASAMITSU
IPC分类号： G09G5/36
摘要： PURPOSE:To shorten the saving and restoring processing time of attribute information and to improve the display processing performance for graphic data by saving and restoring only attribute information which is updated actually in graphic display attribute information which is provided for each graphic definition as an individual unit of graphic data. CONSTITUTION:When graphic data having hierarchic structure wherein while a display instruction group consisting of display instruction statements is executed, another display instruction group is called and executed is displayed, only graphic display attribute information to be updated is saved in a standby area 8 at the time of calling the called display instruction group and updating original graphic display attribute information. Then when the execution of the called display instruction group is completed and execution control returns to the calling origin display instruction group, graphic display attribute information on only the part updated by a saving the restoring processing control part 4 is taken out and the state of a display execution part 2 is restored to a state right before the calling origin display instruction group calls another display instruction group. Consequently, the amount of data of saved graphic display attribute information is reduced, the capacity of the standby area is decreased, and the saving the restoring processing time is shortened.

8. 发明专利

JPS61188588A GRAPHIC DISPLAY UNIT CONTROL SYSTEM 失效
公开(公告)号：JPS61188588A
公开(公告)日：1986-08-22
申请号：JP2830485
申请日：1985-02-18
申请人： HITACHI LTD
发明人： NISHIDA TAKEHIKO , SENDA SHUICHI
IPC分类号： G06F3/153 , G06F3/14 , G09G1/02 , G09G1/16 , G09G3/16 , G09G5/00 , G09G5/36

9. 发明专利

JPS6167885A Monitor rotation adjustor 失效
标题翻译：监视器旋转调节器
公开(公告)号：JPS6167885A
公开(公告)日：1986-04-08
申请号：JP18958784
申请日：1984-09-12
申请人： Hitachi Ltd
发明人： KATANO KAZUYUKI , HASHIMOTO KAZUNORI , YOKOI KENJI , SATO YOICHI , NISHIDA TAKEHIKO
IPC分类号： G09F9/00 , G01D7/00 , G09G1/00 , H04N5/64

10. 发明专利

JPS5835592A DISPLAY PICTURE DIVIDER 失效
公开(公告)号：JPS5835592A
公开(公告)日：1983-03-02
申请号：JP13416281
申请日：1981-08-28
申请人： HITACHI LTD
发明人： NISHIDA TAKEHIKO
IPC分类号： G09G5/32 , G09G1/06 , G09G5/14

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