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1. 发明专利

JPH0756654A INFORMATION PROCESSOR 失效
公开(公告)号：JPH0756654A
公开(公告)日：1995-03-03
申请号：JP20745093
申请日：1993-08-23
申请人： HITACHI LTD , HITACHI CHUBU SOFTWARE KK , HITACHI ASAHI ELECTRON KK
发明人： KANEKO TORU , ICHIEDA YOSHIJI , HIRATA SUNAO , ITO HIROYOSHI , SHIBATA TOSHIO , OSHIMURA AKITO , MIYAGAWA YUJI , KOJIMA KAZUHIRO , OYAMA SEIJI , SUZUKI MICHIYUKI , HOSODA TOSHIYUKI , IMAEDA YASUSHI , SUZUKI AKIMASA , HODO HIROYUKI , WATANABE HISAOKI
IPC分类号： G06F1/18 , G06F1/00 , G06F1/16 , G06F1/20 , G06F15/02
摘要： PURPOSE:To provide a cooling structure of an electronic equipment where a base board, etc., containing a heating unit is mounted with high density by providing two or more systems of flow paths for the air to cool the heating unit, preparing a cooling fan in each air flow path, and furthermore adding an air duct to effectively supply the cooling air to a local heating unit of a high temperature. CONSTITUTION:The hard disk drives HDD 13 are provided in parallel to each other and with a fixed space secured between them so that the air flow, i.e., the cooling air 21 can easily pass through the drives 13. The waste heat sent from other devices are exhausted through an exhaust port 20 by an exhaust fan 18 provided on the back of an equipment. Then plural base boards 16 including a control base board, a logical base board, etc., are mounted on a mother board 35 together with a CPU board, etc. The cooling fans 36 and 37 are placed at the front of those boards set on the board 35 so that the base boards, etc., are cooled by the air 21. Furthermore an air guide 38 is provided at a position close to an LSI of a local heating parts of a high temperature. Thus the flow path of the air 21 is changed, and the air 21 is directly supplied to the LSI by means of the fan 37.

2. 发明专利

JPH04296796A CHARACTER GENERATOR ROM AND CHARACTER DISPLAY DEVICE 失效
公开(公告)号：JPH04296796A
公开(公告)日：1992-10-21
申请号：JP6290591
申请日：1991-03-27
申请人： HITACHI LTD , HITACHI CHUBU SOFTWARE KK , HITACHI ASAHI ELECTRON KK
发明人： HIRATA SUNAO , OYAMA SEIJI , MATSUI ISAMU , WATANABE HISAOKI , FUJIMORI MASANORI , MIYAKE HIDEAKI , TOMA TAKASHI
IPC分类号： G09G5/24 , G06F17/21
摘要： PURPOSE:To offer the character generator ROM which is stored efficiently with KANJI fonts and ANK character fonts and the character display device which uses the character generator ROM. CONSTITUTION:The character generator ROM used for the character display device is stored with character fonts of alphanumeric, number, KANA(Japanese syllabary) character (ANK) in the non-display area of a character code map, and the character fonts can be read out corresponding to character codes. The character display device uses this character generator ROM.

3. 发明专利

JPH07121114A DISPLAY DEVICE 失效
公开(公告)号：JPH07121114A
公开(公告)日：1995-05-12
申请号：JP26462193
申请日：1993-10-22
申请人： HITACHI LTD , HITACHI CHUBU SOFTWARE KK
发明人： HIRATA SUNAO , NAKAYAMA HIROYUKI , MUTO YUKIYA
IPC分类号： G09F9/00
摘要： PURPOSE:To reduce the size and weight of the display device and to expand the use range thereof by providing the device with a means for displaying a screen by mounting the device of contact lens size on the eye. CONSTITUTION:A film-like display part 12, an optical sensor 13, a chargeable battery 14 to be charged by solar batteries, a signal receiver 15 and a display controller 16 are stuck to a lens 11 with autofocusing of the contact lens size. A user wears the display device in the eye and turns on a power source by using the chargeable battery 14 and closing the eye. An initial state is changed and is set to the user's conditions on the signal transmitter side. The adjustment of the image is executed by the special lens 11 having the automatic focusing function. Hereafter, the data radio transmitted by the signal transmitter is executed by the display controller 16 and is projected by the display part 12 using a liquid crystal, etc. The user turns off the power source by opening the eye in the case of not using. The chargeable battery 14 is charged by the solar batteries. The display part 12 will not obstruct the ordinary visual field.

4. 发明专利

JPH04293091A DRAWING CONTROLLER 失效
公开(公告)号：JPH04293091A
公开(公告)日：1992-10-16
申请号：JP5856191
申请日：1991-03-22
申请人： HITACHI LTD , HITACHI CHUBU SOFTWARE KK , HITACHI SOFTWARE ENG
发明人： KOHIYAMA TOMOHISA , KITAHARA JUN , HIRATA SUNAO , OYAMA SEIJI , MUNEMARU TAKUMI , OTE ICHIRO
IPC分类号： G06F3/153 , G06F3/048 , G06F3/14 , G06F12/00 , G06F12/02 , G09G5/00 , G09G5/14 , G09G5/20 , G09G5/24 , G09G5/36 , G09G5/39 , G09G5/393
摘要： PURPOSE:To offer the drawing controller which can process bit block transfer, character drawing, and segment drawing at a high speed. CONSTITUTION:The drawing controller equipped with a CPU 100, a VRAM 1, and a display control part 301 is provided with a data operation part 306, an access cycle generator 10, an address generator 308, a continuous transfer sequencer 15, and a mask pattern generation part, a dot mask generation part, and a data position conversion part 305. Consequently, the bit block transfer and character drawing are processed at a high speed and a window system is made practical to offer comfortable operation environment to a user.

5. 发明专利

JPH04282741A CONTROL DEVICE IDENTIFICATION SYSTEM 失效
公开(公告)号：JPH04282741A
公开(公告)日：1992-10-07
申请号：JP4641291
申请日：1991-03-12
申请人： HITACHI LTD , HITACHI CHUBU SOFTWARE KK , HITACHI SOFTWARE ENG
发明人： TOMA TAKASHI , HIRATA SUNAO , SUGIURA YUJI , OYAMA SEIJI , KOHIYAMA TOMOHISA , MUNEMARU TAKUMI
IPC分类号： G06F9/06 , G06F13/14
摘要： PURPOSE:To more surely and easily identify a control device connected to an extended slot or the like by software as compared with the convensional reading of a specific address by a register. CONSTITUTION:An identification(ID) register 32 is included in a control device 3 connected to a system bus 2 and an initializing circuit 33 for initializing the register 32 at the time of resetting power ON and an arithmetic circuit 31 for executing operation at the time of writing data in the register 32 are also included in the device 3. The system bus 2 is controlled by a master CPU 1 and a control software 11 for applying an instruction to the CPU 1 is arranged on the upper position of the CPU 1. Thereby a certain control device can be easily and surely identified while holding soft interchangeability with an existing control device.

6. 发明专利

JPH04128889A FULL-BIT MAP DISPLAY CONTROLLER 失效
公开(公告)号：JPH04128889A
公开(公告)日：1992-04-30
申请号：JP25072790
申请日：1990-09-20
申请人： HITACHI LTD , HITACHI CHUBU SOFTWARE KK
发明人： HIRATA SUNAO , OYAMA SEIJI
IPC分类号： G09G5/00 , G09G5/24 , G09G5/36
摘要： PURPOSE:To enable fast development processing by performing many fixed-form program processes including a bit map developing process for characters through hardware, minimizing the intervention of a CPU, and decreasing the program processes as much as possible. CONSTITUTION:The read address of a CG ROM 5 is generated by a CG ROM address automatic generation part 100 and character attributes are added by character attribute adding circuits 7, 8, and 9; and the write address of a video RAM (VRAM) 14 is generated by a VRAM address automatic generation part 103 and conversion into VRAM write data is performed by a data conversion part 102. Thus, the processes are performed by using the hardware. Further, a write data holding part is used for the reading of the CG ROM 5 and the writing of a VRAM 14 on a pipeline basis under the control of a sequencer control part. Consequently, data read out of the VRAM 14 is converted and used directly as write data to the VRAM 14 to speed up character development on the VRAM 14.

7. 发明专利

JPH0627915A INFORMATION PROCESSOR 失效
公开(公告)号：JPH0627915A
公开(公告)日：1994-02-04
申请号：JP18071992
申请日：1992-07-08
申请人： HITACHI LTD , HITACHI CHUBU SOFTWARE KK
发明人： SAITO KENICHI , MATSUI ISAMU , HIRATA SUNAO , OYAMA SEIJI , TOMA TAKASHI
IPC分类号： G09G5/00
摘要： PURPOSE:To eliminate the need for setting data in a CRT controller(CRTC) and to improve the throughput of a system by automatically setting the data register of the CRTC with hardware in a display mode such as a standard- definition mode and a high-definition mode. CONSTITUTION:The set values of the low-order bits of vertical total character quantity registers 10-13 are 9H (1001B in binary number) in the standard- defintion mode of a multiscan CRT and BH (1011B in binary number) in the high-definition mode. When 'L' is set in a display mode register 20 for the standard-definition mode, CPU data 31 is 'L', an I/O write command(IOWC-N) signal 95 is also 'L', and a chip selection(CS-N) signal is 'L'. Then necessary values can be set as the low-order four bits of the registers 10-13 by setting the register 20. Therefore, a CPU need not set 40 data registers of the CRTC and the throughput of the whole information processor can be improved.

8. 发明专利

JPH05127662A DISPLAY DEVICE OF INFORMATION EQUIPMENT 失效
公开(公告)号：JPH05127662A
公开(公告)日：1993-05-25
申请号：JP29123291
申请日：1991-11-07
申请人： HITACHI LTD , HITACHI CHUBU SOFTWARE KK , HITACHI SOFTWARE ENG
发明人： KITAHARA JUN , KOHIYAMA TOMOHISA , HIRATA SUNAO , OYAMA SEIJI , MUNEMARU TAKUMI
IPC分类号： G06F3/153 , G06T1/60 , G09G5/00 , G09G5/36
摘要： PURPOSE:To shorten the mean access time of a VRAM and improve the responsiveness and operability by successively reading and writing a certain amount of data. CONSTITUTION:Three high-speed buffer memories (for source, destination, and pattern) 2-4 which can temporary hold data of at least one raster are provided, plane by plane, so as to access the VRAM 1 in high-speed page mode. Further, each plane is provided with a source address generator 8, a destination address generator 9, a pattern address generator 10, a source buffer memory control part 12, a destination buffer memory control part 13, a pattern buffer memory control part 14, a source merging shifter 5, a pattern merging shifter 6, a ternary raster computing element 7, a VRAM access control part 11, and a writing permission part 15. Then data arrayed in many successive addresses are continuously read out and continuously written.

9. 发明专利

JPH0290863A IMAGE SCANNER 失效
公开(公告)号：JPH0290863A
公开(公告)日：1990-03-30
申请号：JP24112788
申请日：1988-09-28
申请人： HITACHI LTD , HITACHI CHUBU SOFTWARE KK
发明人： HIRATA SUNAO , MATSUI ISAMU
IPC分类号： H04N1/04 , G06T1/00
摘要： PURPOSE:To improve operability by providing a means to designate the reading area of image information as confirming it on the image information. CONSTITUTION:The reading area 30 of the image information 3 is determined as an area surrounded by a lateral and a longitudinal area reading designating parts 23, 24, 26, 27 by moving the lateral area reading designating parts 23, 24 to determine the reading area in a lateral direction and the longitudinal area reading designating parts 26, 27 to determine the reading area in a longitudinal direction. Accordingly, the reading area 30 can be easily designated as confirming a range to read by moving the lateral and the longitudinal area reading designating parts on an image picture. Thus, the operability can be improved.

10. 发明专利

JPH04294442A DATA TRANSFER CONTROL DEVICE 失效
公开(公告)号：JPH04294442A
公开(公告)日：1992-10-19
申请号：JP5855091
申请日：1991-03-22
申请人： HITACHI LTD , HITACHI ASAHI ELECTRON KK
发明人： TOMA TAKASHI , HIRATA SUNAO , FUJIMORI MASANORI , WATANABE HISAOKI , MIYAKE HIDEAKI
IPC分类号： G06F13/42
摘要： PURPOSE:To efficiently execute data transfer between a CPU and a peripheral device by delaying the leading end timing of a strobe signal by an optimum value. CONSTITUTION:A data transfer control device 2 is connected between the CPU 1 and an I/O device 4 and includes a strobe signal leading end delaying circuit 3 for delaying the leading end timing of a strobe signal. A strobe signal (2) obtained by delaying the leading end timing of a strobe signal (1) sent from the CPU 1 is outputted to the device 4 and data on a data bus 5 sent from the CPU 1 are transferred to the device 4 through a data bus 6. Namely the leading end timing of the strobe signal (1) is delayed by the period width of a clock pulse through a shift register 34 and a strobe signal (2) having the shortest delay is selected from strobe signals (2) obtained by shifting the leading end timing of the strobe signal (1) back and forth.

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