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1. 发明专利

JP2001282165A DISPLAY DEVICE AND ITS DRIVING METHOD 失效
公开(公告)号：JP2001282165A
公开(公告)日：2001-10-12
申请号：JP2000099149
申请日：2000-03-31
申请人： FUJITSU LTD , FUJITSU HITACHI PLASMA DISPLAY
发明人： SHIBATA HIROYUKI , MURAYASU YOSHIRO , WATANABE SATOSHI
IPC分类号： G09G3/296 , G09G3/20 , G09G3/288 , G09G3/291 , G09G3/298 , G09G5/18 , G09G5/36 , G09G3/28
摘要： PROBLEM TO BE SOLVED: To solve the problem that, in the conventional display device, since the device is made so as to drive a display panel by a driving waveform following a clock having a fixed frequency, noise having large peak values is generated. SOLUTION: This display device is constituted so that the frequency of clocks used for driving a display panel 1 is continuously changed and the display panel 1 is driven with the frequency-changing clocks and, as a result, peak values of the noise are reduced by dispersing noise generated from the display panel 1.

2. 发明专利

JP2001101151A METHOD FOR CONTROLLING TRANSFER AND INFORMATION PROCESSOR 失效
公开(公告)号：JP2001101151A
公开(公告)日：2001-04-13
申请号：JP27466099
申请日：1999-09-28
申请人： FUJITSU LTD
发明人： ICHIKAWA TERUO , SHIBATA HIROYUKI , TAKAYAMA KAZUYOSHI , TAKAKUSAKI AKIRA , KOSOKABE HITOSHI , SHIMIZU MASAYUKI , EGAWA HIROYUKI
IPC分类号： G06F15/173 , G06F13/00 , G06F13/38 , G06F15/16 , G06F15/177
摘要： PROBLEM TO BE SOLVED: To attain the synchronous transfer and asynchronous transfer of data or commands and to improve the efficiency of transfer in a transfer controlling method and an information processor. SOLUTION: The transfer control system is provided with a control block having at least a buffer function and a selector for selecting a 1st route for asynchronously transferring a request from a request source to a request destination through the control block or a 2nd route for synchronously transferring the request to the request destination without passing the control block.

3. 发明专利

JPH0950258A INFORMATION PROCESSING SYSTEM AND PLASMA DISPLAY DEVICE 失效
公开(公告)号：JPH0950258A
公开(公告)日：1997-02-18
申请号：JP20365995
申请日：1995-08-09
申请人： FUJITSU LTD
发明人： SHIBATA HIROYUKI , KISHI TOMOKATSU
IPC分类号： G01V8/12 , G09F9/313 , G09G3/20 , G09G3/28 , G09G3/291 , G09G3/294
摘要： PROBLEM TO BE SOLVED: To perform a screen saving in accordance with the existence of an operator and the state of a display screen by changing a display surface into a screen for image sticking prevention in accordance with the existence of the operator in front of the display surface of a display device and the display time of a still picture. SOLUTION: Whether a fixed time has elapsed or not, is judged. At this time, the timer 33 of a still picture monitoring circuit 13 measures a time judged to be of a still picture by a judgement circuit 32. Then, when the fixed time has elapsed, the existence of the operator is confirmed. At this time, an operator sensor 12 detects the existence of the operator from the display surface of a plasma display panel(PDP) 11 and when the operator exists in front of the display surface, the sensor outputs, for example, an operator detection signal S3='L' level to a screen saving circuit 14. Moreover, when the operator does not exist, the screen saving circuit 14 makes the display surface of the PDP 11 a screen for image sticking prevention base on a video signal SIN, a reset signal, SR, a time-up signal S2 and the operator detection signal S3.

4. 发明专利

JPH06318051A VIDEO SIGNAL CONVERSION DEVICE AND PLASMA DISPLAY DRIVING DEVICE 失效
公开(公告)号：JPH06318051A
公开(公告)日：1994-11-15
申请号：JP10684993
申请日：1993-05-07
申请人： FUJITSU LTD
发明人： KIMURA MASATSUGU , SHIBATA HIROYUKI
IPC分类号： G09G3/20 , G09G3/28 , G09G3/291 , G09G3/294 , G09G3/296 , H03M1/12 , H04N9/30
摘要： PURPOSE:To improve picture quality and display quality by discriminating an input source, automatically inputting a video signal, performing optimum gamma correction to the input source and reproducing a display color with excellent color balance. CONSTITUTION:A video signal conversion device is provided with a signal input means 11 selectively outputting a kind of video analog signals AR, AG, AB, a signal processing means 12 converting the video analog signals AR, AG, AB to digital signals DR, DG, DB and a characteristic correction means 13 correcting the gamma characteristics of the digital signals DR, DG, DB, and is constituted so as to incorporate that the digital signals DR, DG, DB are corrected independently by the characteristic correction means 13 based on a characteristic control signal S. A plasma display driving device is provided with a display control means 14 and a display driving means 15, and is constituted so as to incorporate that a video signal conversion part 14A consisting of the video signal conversion device is provided in the display control means 14.

5. 发明专利

JPH04169950A MEMORY CARD CONTROL SYSTEM 失效
公开(公告)号：JPH04169950A
公开(公告)日：1992-06-17
申请号：JP29685790
申请日：1990-11-01
申请人： FUJITSU LTD
发明人： OBATA SHOICHI , KANEKO KEIICHI , MATSUI NAOKI , SHIBATA HIROYUKI
IPC分类号： G06F12/16
摘要： PURPOSE:To restore destroyed data even at the time of not only a power break but also insertion/extraction of a memory card by checking whether data restoration is required or not by a flag at the time of access of the memory card. CONSTITUTION:A memory controller MCU writes data of one sector, which is sent from a host system together with a write command, in a buffer memory part 13 of a memory card 10 together with vertical parity data and writes these data in the transfer destination sector address of a data memory part 11. During this processing in the second stage, a transfer flag of a flag storage memory part 14 is set. The memory controller MCU checks the flag in the flag storage memory part 14 before execution of the write command, and command execution is started if the flag is not set, but command execution is started after the processing in the second stage if it is set. In this case, the flag is checked at the time of each access of the memory card or the first access. Thus, data restoration processing is completely performed.

6. 发明专利

JPH033188A BUBBLE FILE STORAGE DEVICE 失效
公开(公告)号：JPH033188A
公开(公告)日：1991-01-09
申请号：JP13788189
申请日：1989-05-31
申请人： FUJITSU LTD
发明人： SHIBATA HIROYUKI , MATSUI NAOKI
IPC分类号： G11C11/14
摘要： PURPOSE:To make the correct/incorrect management of an error proper and to improve an error rate by adding an ECC code for each data string to be divided and executing the transfer of the data with an external part in making the single data string into a unit. CONSTITUTION:A page of 4 kilobytes accessed by data buffers 24 and 25 of a control part 22 is divided into plural data strings to make 256 bytes into one unit, the ECC code is added for the divided data string by an error checking and correcting (ECC) circuit 28, and the transfer of the data is executed with the host system of the external part in making one of divided data strings into one unit. In such a way, since the data correct/incorrect management is executed in the unit of the minimum data length, the address of the unit to be accessed is prevented from being influenced by the error of the other unit, and consequently, the error rate as the whole device is improved, and a performance improvement can be executed.

7. 发明专利

JPH02220291A BUBBLE FILE STORAGE 失效
公开(公告)号：JPH02220291A
公开(公告)日：1990-09-03
申请号：JP4054889
申请日：1989-02-21
申请人： FUJITSU LTD
发明人： SHIBATA HIROYUKI , MATSUI NAOKI
IPC分类号： G11C11/14
摘要： PURPOSE:To increase the number of bubble memories driven in parallel to realize high-speed data transfer and a large capacity by arranging while data to a data array to be written in respective bubble memory blocks in serial. CONSTITUTION:Error detection information is added to external input data Din, and error of external output data Dout is detected 11 at the time of read- out, and respective data and bubble memory means BM0 to BMn are controlled 12. Further, input data are rearranged to the data array to be supplied to respective memory means in serial at the time of data write by a data array rearranging means 13 and the read-out data array is rearranged to the data array of input data at the time of reading out data from memory means.

8. 发明专利

JPH027285A BUBBLE MEMORY DEVICE 失效
公开(公告)号：JPH027285A
公开(公告)日：1990-01-11
申请号：JP15693888
申请日：1988-06-27
申请人： FUJITSU LTD
发明人： SHIBATA HIROYUKI , KANEKO KEIICHI , OBATA SHOICHI , TANAKA KATSUNORI , MATSUI NAOKI
IPC分类号： G11C11/14
摘要： PURPOSE:To improve the operating characteristic of a memory by providing a switching means 3 to select one block from plural blocks and to apply a source voltage on it, a function driving means 2 to drive and control a selected bubble memory block, and a resistance means 4 connected to the switching means 3 in parallel. CONSTITUTION:A positive source voltage +V is applied on the function gates of a first bubble memory block 11 selected by the switching means 3 and the bubble memory blocks second and after 12, 13, to 1N set at non-selective states by the switching means 3, and only different impedance are attached on them. Therefore, no distortion is generated on a current waveform which flows on the function gate. In other words, in the title bubble memory device, influence due to junction capacitance by a diode can be eliminated by performing the switching of the memory block by the switching means and the resistance means. In such a way, it is possible to perform the generation of a bubble and replication accurately, and to improve the operating characteristic of the memory remarkably.

9. 发明专利

JPH01292700A BUBBLE FILE MEMORY DEVICE 失效
公开(公告)号：JPH01292700A
公开(公告)日：1989-11-24
申请号：JP12190788
申请日：1988-05-20
申请人： FUJITSU LTD
发明人： MATSUI NAOKI , KANEKO KEIICHI , TANAKA KATSUNORI , OBATA SHOICHI , SHIBATA HIROYUKI
IPC分类号： G11C11/14
摘要： PURPOSE:To enable to execute self-inspection while a device is left on-line even during an operation by making a device control part execute the self- inspection in various parts in the device according to a self-inspection execute signal to be supplied from a host system. CONSTITUTION:After a signal which is supplied from the host system 5 and executes the self-inspection is analyzed by the interface part 3 of a bubble file memory device, it is outputted to the device control part 2. This self- inspection executed by the signal to be supplied from the system 5 and to execute the self-inspection is executed, for instance, at the time of the occurrence of an error or trouble, and the self-inspection of detailed items is executed. Thus, because the self-inspection of the detailed items is executed according to an output signal from the system 5 at the time of the occurrence of the error or the trouble, the self-inspection of necessary and minimum items is enough at the time of the power switching-in of the device.

10. 发明专利

JPS6466895A DEVICE FOR WRITING AND READING MAGNETIC BUBBLE MEMORY 失效
公开(公告)号：JPS6466895A
公开(公告)日：1989-03-13
申请号：JP22361487
申请日：1987-09-07
申请人： FUJITSU LTD
发明人： TANAKA KATSUNORI , NOGAI KENGO , MATSUI NAOKI , SHIBATA HIROYUKI , OSHIRO MIKIO
IPC分类号： G11C11/14
摘要： PURPOSE:To protect retention data by writing the data from an external part and the storing data of a second storing area, which is provided to a magnetic bubble memory, to a first storing area with a logical operating means and outputting them to the external part with executing reverse conversion when these data are read. CONSTITUTION:At the writing time of the data, the data stored to a second storing area 32 of a magnetic bubble memory 3 (the special data of a pass-word, etc.,) and the external data to be inputted to a control means 1 are operated by a logical operating means 2 and the operated result is stored to a first storing area 31 of the magnetic bubble memory 3. On the other hand, at the reading time of the data, the data of this first storing area 31 and the data of the second storing area 32 are operated and the reverse conversion is executed so that these data can be the same data as the external data inputted to the control means 1 at the writing time. Then, these data are outputted to a data bus. Thus, since the exact reading of the data can not be executed by a device not to equip the same logical operating means, information stored to the magnetic bubble memory can be protected.

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