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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

JPH036720A LARGE SCALE INTEGRATION 失效
公开(公告)号：JPH036720A
公开(公告)日：1991-01-14
申请号：JP14102489
申请日：1989-06-05
申请人： HITACHI LTD
发明人： HIRATA SUNAO
IPC分类号： G06F1/10 , H03K5/00
摘要： PURPOSE:To omit the correction for skew which is carried out with the phase control of a clock when a flip-flop FF is divided by plural clock drivers and driven by using an FF which is capable of output delay control. CONSTITUTION:The connection is secured among FF 11 - 1n, 21 - 2n, and 31 -3n so that the data signals DATA are serially inputted. The drivers 10 - 30 divide and drive a clock CLOCK in parallel to output the clock signals CLOCK1 - 3. The FF 11 - 3n can control the delay time when the input data is stored and the output is changed, and this delay time (t) is set at the value larger than the skew times of the drivers 10 - 30. As a result, the output DATA1 of the FF 1n changes when the time (t) passedafter the rise of CLOCK1. Then the input DATA1 of the FF 21 changes after the rise of CLOCK2. Thus the FFs have no malfunction, therefore no correction is required for the clock skews.

3. 发明专利

JPH01273155A DATA TRANSFER SYSTEM 失效
公开(公告)号：JPH01273155A
公开(公告)日：1989-11-01
申请号：JP10030188
申请日：1988-04-25
申请人： HITACHI LTD
发明人： HIRATA SUNAO
IPC分类号： G06F11/14 , G06F13/00
摘要： PURPOSE:To facilitate the error detection, and also, to shorten the error processing time by comparing store data and received data after the designated time has elapsed, repeating re-store of its received data until those data coincide in the course of a write data transfer sequence of once and storing surely write data. CONSTITUTION:A write data transfer sequence is continued until store data of a data buffer (DTB) 23 coincides with write data of a data bus 32, the store of the write data is repeated to the DTB 23, and after they have coincided, the write data transfer sequence is ended. Therefore, by the write data transfer sequence of once, the write data of a CPU 1 can be stored surely in a controller (IOC) 2. Accordingly, after a transfer of a write data block has been ended, a check of a store data block is executed and an error is detected, and it becomes unnecessary to execute a transfer of the write data block again. In such a way, the error processing is facilitated, and also, the error processing time is shortened.

4. 发明专利

JPS60245047A DATA SCANNING PROCESSING SYSTEM 失效
公开(公告)号：JPS60245047A
公开(公告)日：1985-12-04
申请号：JP10049584
申请日：1984-05-21
申请人： HITACHI LTD
发明人： NAKAMURA MASAYUKI , HORI KAZUYA , KINOSHITA NOBORU , TSUCHIYA CHIHIRO , HIRATA SUNAO
IPC分类号： G06F7/04 , G06F9/22 , G06F17/30
摘要： PURPOSE:To improve the ability of microprogram control in scanning processing without adding any hardware by nesting comparing data in a RAM so that the final data of a record is in the tail address of the RAM. CONSTITUTION:The head address of the 1st record from a microprocessor muP1 is loaded in an address register 4 and the address obtained by subtracting one record length from the tail address of the RAM3 is loaded in an address register 2. Further, a chip select signal CS is sent out to RAMs 3 and 5, which are accessed on the basis of the contents of the registers 2 and 4 to read respective data. Those data are inputted to the muP1, which compares and collates those data to sent a 1-count-up indication UP to the registers 2 and 4 when the input data coincide with each other. Thus, when the register 2 counts up to the address of the final data of one record, an overflow signal 7 is inputted to the muP1, which knows the completion of the comparison and collation of the 1st record and checks whether the condition are satisfied or not.

5. 发明专利

JPS5654614A STORAGE DEVICE 失效
公开(公告)号：JPS5654614A
公开(公告)日：1981-05-14
申请号：JP12987079
申请日：1979-10-11
申请人： HITACHI LTD
发明人： MAEDA YOSHINOBU , HIRATA SUNAO
IPC分类号： G11B33/10 , G06F3/06 , G11B5/09 , G11B20/18 , G11B27/36
摘要： PURPOSE:To avoid the misselection of the sector due to the sector clock, by monitoring the cycle of the sector selecting reading clock signal of the rotary recording medium and thus giving a control to the inhibition of the read/write of the data. CONSTITUTION:A monitor is given via the clock monitor circuit 8 to the sector clock which is detected out of the magnetic drum 1 through the magnetic head 2 and the sector clock signal detecting circuit 4. And in case when the cycle of the sector clock becomes unsteady with occurrence of the fault, drop-out, etc. of the sector clock, the output of the circuit 8 turns to a low level. As a result, the AND gate 9 closes and the count value of the sector clocks via the counter 5 coincides with the address number set at the register 6 through the comparator 7. In that case, the coincidence output of the circuit 7 is cut off by the gate 9, and thus the misselection of the sector due to the fault of the sector clock can be avoided to prevent both the miswriting and misreading.

6. 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.

7. 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.

8. 发明专利

JPS6190231A Laser beam hard copy printer 失效
标题翻译：激光光束复印打印机
公开(公告)号：JPS6190231A
公开(公告)日：1986-05-08
申请号：JP21135384
申请日：1984-10-11
申请人： Hitachi Ltd
发明人： HORIUCHI YUICHI , AKAHORI KENICHI , HIRATA SUNAO
IPC分类号： G06F3/12 , B41J2/00 , B41J2/44 , G03G15/04 , G06K15/12
摘要： PURPOSE: To use the paper efficiently by reading and printing the picture element signal for the sub-scan direction of the CRT since the time of picture element signal per one picture element becomes shorter as the resolution of CRT becomes higher.
CONSTITUTION: When a microprocessor 10 recognizes that the reception of picture element signal is all completed from a vertical synchronizing counter 25, it commands a main controller 13 to start the printing process. A laser scanning start signal is outputted from the controller 13. The output of a dot counter 23 which counts the output of an oscillator 18 generating the pulse of the same length as one picture element of laser in the main scan direction and the output of a raster counter 24 which counts the number of scan in the sub-scan direction of laser give the read address to a picture element memory 15 through an address multiplexer 19. The 8-bit parallel data read from the picture element memory 15 is outputted to a multiplexer 16, and one bit is selected and outputted to video amplifier through a control circuit 7 as a video signal.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过读取和打印用于CRT的副扫描方向的图像元素信号，由于随着CRT的分辨率变高，每个像素的像素信号的时间变短，因此有效地使用纸张。构成：当微处理器10识别到垂直同步计数器25都完成了图像元素信号的接收时，命令主控制器13开始打印处理。激光扫描开始信号从控制器13输出。点阵计数器23的输出，其计算在主扫描方向上产生与一个激光像素相同长度的脉冲的振荡器18的输出，并输出一个对激光的副扫描方向的扫描次数进行计数的光栅计数器24通过地址多路复用器19将读取地址提供给图像元素存储器15.从图像元素存储器15读出的8位并行数据被输出到多路复用器16，并且通过作为视频信号的控制电路7选择一位并将其输出到视频放大器。

9. 发明专利

JPS6030027B2 失效
公开(公告)号：JPS6030027B2
公开(公告)日：1985-07-13
申请号：JP1225876
申请日：1976-02-09
申请人： HITACHI LTD
发明人： HIRATA SUNAO , TAKASHI MORIHIKO
IPC分类号： H04L25/02 , G11B5/09 , G11B20/20 , H04L7/00

10. 发明专利

JPS59165270A Monitoring system for input and output device 失效
标题翻译：输入和输出设备监控系统
公开(公告)号：JPS59165270A
公开(公告)日：1984-09-18
申请号：JP3924883
申请日：1983-03-11
申请人： Hitachi Ltd
发明人： HIRATA SUNAO
IPC分类号： G11B15/675 , G11B19/02 , G11B19/04
CPC分类号： G11B19/02
摘要： PURPOSE:To monitor whether a recording medium is usable or not by the output of a means which detects whether a recording medium is loaded or not by providing the means to an input/output device where the recording medium is replaced. CONSTITUTION:Usable state signals (c) and (d) for the recording medium are negative set inputs to monitoring flip-flops 14 and 16 for the replacement of the recording medium, so when the recording medium in some unit is replaced, the recording medium which is already set is taken out and a new recording medium is set; and the recording-medium usable state signal of the corresponding unit is 0 until said recording medium becomes usable. Consequently, the signal of a unit specified by multiplexer 18 to obtain a recording medium replacement monitor signal (g) from output signals of flip-flops 14 and 16 for monitoring the replacement of the recording medium corresponding to said unit. Therefore, when the signal (g) is 1, it is known that the recording medium is replaced in the past at the specified unit.
摘要翻译：目的：通过向记录介质更换的输入/输出装置提供该装置，通过检测记录介质是否加载的装置的输出来监视记录介质是否可用。构成：用于记录介质的可用状态信号（c）和（d）是用于更换记录介质的监视触发器14和16的负设置输入，因此当更换某些单元中的记录介质时，记录介质取出已设定的记录介质，并且相应单元的记录介质可用状态信号为0，直到所述记录介质变得可用。因此，由多路复用器18指定的单元的信号，以从触发器14和16的输出信号获得记录介质替换监视信号（g），用于监视对应于所述单元的记录介质的替换。因此，当信号（g）为1时，已知以指定的单位过去更换记录介质。

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