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1. 发明专利

JPH03192478A CURVE DISPLAY METHOD 失效
公开(公告)号：JPH03192478A
公开(公告)日：1991-08-22
申请号：JP33132389
申请日：1989-12-22
申请人： HITACHI LTD
发明人： NIO MIYAKO
IPC分类号： G06T17/30 , G06F17/50 , G06T11/20 , G06T15/00
摘要： PURPOSE:To display a wire frame to distinguish the front and back sides of a curved surface and a plane with the small amount of data by providing a means to interpolate a direction vector and to determine it and a means to determine the display method of an arbitrary point from the direction vector and a sighting direction vector. CONSTITUTION:To respective plural points on the border line of the curved surface, as the direction vectors of those points, a normal vector is applied at the point of the curved surface and when the curved surface is displayed, only the border line is displayed. As a border line display method, the direction vector at the arbitrary point on the border line is calculated from the plural direction vectors applied to the border line by interpolation and an inner product value between the glance direction vector and the interpolating direction vector is calculated. Then, the arbitrary point of the border line is displayed by a display method corresponding to the inner product value applied in advance. Thus, it is not necessary to apply the direction vectors concerning all the points of a curve as display data in advance, the amount of the display data can be reduced and the distinguishment for the front and back sides of the curve is always assured corresponding to slighting direction.

2. 发明专利

JPS6426978A DETECTING SYSTEM FOR DISPLAY PATTERN 失效
公开(公告)号：JPS6426978A
公开(公告)日：1989-01-30
申请号：JP18232487
申请日：1987-07-23
申请人： HITACHI LTD
发明人： KANEMA SEIICHI , NIO MIYAKO , FUKUNAGA YASUSHI , NISHIDA TAKEHIKO
IPC分类号： G06F17/50 , G06F3/033 , G06F3/048 , G06T11/00 , G06T11/60 , G06T11/80 , G06T15/30
摘要： PURPOSE:To increase the detecting speed of graphic data by performing comparison between read display color data and a display color command of a graphic data buffer or between the read depth value and the depth value of a geometric form command of the graphic data buffer. CONSTITUTION:A graphic processor 6 reads out a display list of a graphic data buffer 5 and compares a set window with the graphic data to write the graphic data included in the window and the partial picture data of said graphic data in a frame memory 7. The memory 7 stores the display color data showing a color to be displayed with the picture elements shown on a display picture 8 in an address corresponding to said picture elements. Then all addresses of the area corresponding to a view port of the picture 8 are successively and repetitively read out. Thus image signals are obtained and supplied to the picture 8. A Z buffer 11 is used with a 3-dimensional pattern so that the depth value is stored for each point on a surface where each pattern can be viewed. The memory 7 stores the display color data only in an address corresponding to the point where the depth value is stored via the buffer 11.

3. 发明专利

JPS62284479A DEVICE FOR RECOGNIZING STEREOSCOPIC SHAPE OF OBJECT 失效
公开(公告)号：JPS62284479A
公开(公告)日：1987-12-10
申请号：JP12576486
申请日：1986-06-02
申请人： HITACHI LTD
发明人： USAMI YOSHIAKI , ANJO KENICHI , NIO MIYAKO , HAMADA KANMAN , YANAKA MASAO
IPC分类号： G06T1/00 , G06K9/00 , G06T7/00
摘要： PURPOSE:To recognize a local recessed part and to improve the accuracy of recognition of the whole shape by combining a conical body penetration method with a stereoscopic vision method based upon both eyes. CONSTITUTION:The processings of steps 101-105 are shape recognition based upon the conical body penetration method and the processings of steps 106-109 are shape correction based upon the stereoscopic vision of both eyes. Images are photographed by TV cameras 1-8 and the envelope surface of the shape of an object is recognized by using the images 1-4 picked up by the cameras 1-4 based on the conical body penetration method. Then, shape correction based upon stereoscopic vision is executed by using the images 1, 5; 2, 6; 3, 7 and 4, 8. Namely stereoscopic vision can be executed by using a geometric restricting condition obtained by the conical body penetration method, so that an accurate stereoscopic shape can be recognized. Consequently, a local recessed part which can not be recognized by the conical body penetration method can be recognized and the accuracy of the whole shape recognition can be improved.

4. 发明专利

JPS62164166A GRAPHIC ARRANGEMENT DISPLAYING METHOD 失效
公开(公告)号：JPS62164166A
公开(公告)日：1987-07-20
申请号：JP493386
申请日：1986-01-16
申请人： HITACHI LTD
发明人： OOTA YOSHIMI , ARAI HIROSHI , NIO MIYAKO
IPC分类号： G06F17/50
摘要： PURPOSE:To easily generate a three-dimensional image by dividing and displaying plural two-dimensional drawings as fundamental graphics, and performing the movement and the rotation of the graphic with an indication by a stylus pen. CONSTITUTION:A mode space 16 is set automatically to perform the modeling of a three-dimensional shape within a graphic display controller 2, and a model coordinate system shown in rectangular coordinates X, Y, and Z is attached. Also, a fundamental graphic 14 has a primitive coordinate system 18, and it is represented as the rectangular coordinate of (x), (y), and (z). When the fundamental graphic 14 is generated within the device 2, a state where the coordinate systems 17 and 18 are coincided is generated. The movement and the rotation of the fundamental graphic 14 within the space 16 are represented by a movement quantity P0 (X0, Y0, Z0), and a rotation quantity F (matrix of 3 X 3) in the coordinate system 18 against the coordinate system 17, and one point P'(x, y, z) in the coordinate system 18 is converted to one point P(X, Y, Z) in the coordinate system 17, and is made into a component, and a bit of shape information, the movement quantity, and the rotation quantity for each of the fundamental graphics are preserved within the device 2.

5. 发明专利

JPS57200144A AUTOMATIC PRODUCTION OF DENTURE 失效
公开(公告)号：JPS57200144A
公开(公告)日：1982-12-08
申请号：JP8437081
申请日：1981-06-03
申请人： HITACHI LTD
发明人： OCHI TOSHIO , NIO MIYAKO , TAKASAGO TSUNEYOSHI , MIURA KIYOSHI
IPC分类号： A61C13/08 , A61C13/007 , A61C13/01

6. 发明专利

JPS55115178A INDICATING METHOD FOR TABLET OPERATION 失效
公开(公告)号：JPS55115178A
公开(公告)日：1980-09-04
申请号：JP2081779
申请日：1979-02-26
申请人： HITACHI LTD
发明人： NIO MIYAKO , KATAOKA HIDEO , OCHI TOSHIO , HASHIYAMA TOKUJI , MORISANE NOBUAKI
IPC分类号： G06F3/02 , G06K9/62 , G06K11/00
摘要： PURPOSE:To obtain ease of writing symbol by simplifying the pattern recognition means, by one writing consisting of straight lines for the symbols being the objective of recognition, and drawing it with the same direction as either one of several fundamental direction vectors for each line. CONSTITUTION:One set of pattern data such as one to three writing symbols are assigned to all the pattern recognsition collating symbols, and the writing direction information of straight lines constituting the symbols is stored in the memory unit of the control processing unit 3 according to the order of writing. Based on the locus of the stylus 2 drawn on the tablet 1, the corresponding pattern stored to the control processing unit 3 is selected and the pattern selected is processed. The direction of significance of a plurality of straight lines of the symbol is set to directions 1-8, one of eight lines is drawn to the same direction as the reference vector, and while the stylus 2 is in contact with the tablet 1, the pattern can be identified as the unit command.

7. 发明专利

JPH052554A DATA TRANSFER EQUIPMENT 失效
公开(公告)号：JPH052554A
公开(公告)日：1993-01-08
申请号：JP15436491
申请日：1991-06-26
申请人： HITACHI LTD , HITACHI VIDEO & INF SYST
发明人： ITOU KIMIHARU , NIO MIYAKO
IPC分类号： G06F13/28 , H04L13/08 , H04L29/10
摘要： PURPOSE:To attain control at real time and to improve transfer efficiency by determining a succeeding transfer system based upon a data processing time and a DMA controller control switching time. CONSTITUTION:A transfer circuit is provided with one or plural timers 3, 7 and measures a data processing time and a status transition time required from writing in a RAM 6 up to reading from the RAM 6 or from its reading up to its writing. A comparator prepared to identify a condition for determining the succeeding transfer system mutually compares the data processing time and the status transition time respectively measured by the timers 3, 7 and sends the compared result to a CPU 5. Thus the data processing time and the status transition time are respectively measured by the timers 3, 7 and their time lengths are compared with each other to determine the succeeding transfer system. Thereby transfer matched with the processing of data to be transferred can be executed and the transfer efficiency can be improved.

8. 发明专利

JPH03266085A GRAPHIC PROCESSING SYSTEM 失效
公开(公告)号：JPH03266085A
公开(公告)日：1991-11-27
申请号：JP6422290
申请日：1990-03-16
申请人： HITACHI LTD
发明人： NIO MIYAKO , SHINOZUKA YOSHIAKI
IPC分类号： G06F17/50
摘要： PURPOSE:To control calculation accuracy as needed by designating a distance from the position of a point, where a curve close to a contact state crosses a curved surface, to an approximate cross point as a converged result up to the moment. CONSTITUTION:Under the condition of a contact P, I-th convergent point P1 on a curve A, (I+1)-th convergent point (improved point) Q2 on a curve B and cross point Q2 between the tangential line of the curve B and a straight line P1Q2 at the contact P, when the convergent point P1 is enough close to the contact P, a curved arc PP1 can be approximated to a circular arc and therefore, the condition of PQ2'=P1Q2' is established. Accordingly, since the condition of the straight line PP1

9. 发明专利

JPH02150967A SIMULATION DEVICE 失效
公开(公告)号：JPH02150967A
公开(公告)日：1990-06-11
申请号：JP30412188
申请日：1988-12-02
申请人： HITACHI LTD
发明人： TAKAHASHI KAZUNORI , NIO MIYAKO , YOSHINAGA TOSHIAKI
IPC分类号： G06F17/50 , G06F19/00
摘要： PURPOSE:To rapidly realize an interfering check even in a difficult case by adopting a system to supervise the information of an object in a space, applying a flag to the object information, and possessing a device to execute parallel processings. CONSTITUTION:The information of the target object to be checked concerning the interference is read from a memory 3, etc., and to which partial space the object belongs is retrieved. One of the several crossing spaces is selected, and the object in the space is selected. The flag is checked, when the flag is real, the interference between the objects is checked by an interference checking means in a parallel processor 5. The interference between the objects is checked by similar-expressing the respective objects by means of polygons and deciding the crossing between polygon surfaces constituting the polygons. When the interference exists, the number, name, etc., of the interfering object are displayed, and by simultaneously changing the color of the object outputted on a device 2, the interfering condition is indicated.

10. 发明专利

JPS63171703A OBJECTS MANAGEMENT SYSTEM 失效
公开(公告)号：JPS63171703A
公开(公告)日：1988-07-15
申请号：JP165087
申请日：1987-01-09
申请人： HITACHI LTD
发明人： ANJO KENICHI , TASHIRO FUSASHI , KIKUCHI YASUMOTO , NIO MIYAKO , YANAKA MASAO , TOMITA KENICHI , KAWASHIMA YASUMASA
IPC分类号： B65G1/137 , G06K17/00
摘要： PURPOSE:To facilitate sensing of location in management of accommodative objects such as books in the case they move frequency in the accommodation space, by equipping each object with a signal transmitter, and accomplishing grasp of current place through sending/reception of signals between the object and a managerial interface. CONSTITUTION:When a user enters a name and/or code etc., for an object through an input/output device 11, it is emitted from an interface 12 upon conversion into the identification signal for the object. This identification signal is transmitted from an antenna 13 and received by a transmitter/receiver 14 of each object 15. For the object 15 whose identification signal is identical to the received signal, the identification signal on the accommodation shelf is sent to the interface 12 via the antenna 13. The interface 12 informs the place where the object is accommodated, on the basis of the transmitted signal. This arrangement provides easier scanning for the accommodation place as well as serves prevention of theft.

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