专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH0756689A SECTOR IDENTIFICATION SYSTEM 失效
公开(公告)号：JPH0756689A
公开(公告)日：1995-03-03
申请号：JP20526693
申请日：1993-08-19
申请人： HITACHI LTD , HITACHI ASAHI ELECTRON KK
发明人： MORI TATSUMI , SHIBATA HIDEKI , NITO TAKASHI , KAWAMOTO MINEO
IPC分类号： G06F3/06
摘要： PURPOSE:To provide a sector identification system in which the presence or absence of a sector can be checked without using a memory on a system by using a result status from a controller. CONSTITUTION:A DMA channel for transfer is set in a transfer invalidating state (step 101). Next. the sector is read (step 103). The presence or absence of a transfer system error is judged from the result status from an FDC at that time (step 105). When the sector is present, the FDC tries to transfer a data part read from a medium to a CPU. However, when the DMA is disable, the FDC recognizes the DMA suppression, and communicates a transfer system error through a BUSC to a CPU 11. Thus, when the transfer system error is judged in the step 105, the CPU judges that the sector is present (step 106).

2. 发明专利

JPS6355619A CONTROL SYSTEM FOR MOUSE DATA 失效
公开(公告)号：JPS6355619A
公开(公告)日：1988-03-10
申请号：JP19882586
申请日：1986-08-27
申请人： HITACHI LTD
发明人： NITO TAKASHI
IPC分类号： G06F3/038 , G06F3/033
摘要： PURPOSE:To reduce the manipulated variable of its own mousse by keeping an exclusive switch under an ON state during operation of the mouse and shifting continuously a mouse cursor on a display screen even through the shift of said mouse is stopped. CONSTITUTION:A mouse input system includes a mouse 5, DELTAx-DELTAy counters 1-2, a transmission buffer 4, and a shift amount data control circuit 6. The mouse 5 contains an exclusive switch to turn on and off the circuit 6. The circuit 6 contains a data holding circuit 3 and supplies a counter value read signal 7 and an exclusive switch ON signal S3. Thus the circuit 3 discontinues to read data sent from both counters 1 and 2 and transfers its held data only to the buffer 4 when said exclusive switch is turned on while the circuit 6 is receiving the data on the shift amount of the circuit (during shift of the mouse 5) as long as the mouse 5 has a large shift amount.

3. 发明专利

JPH05224867A SYSTEM FOR RETRIEVING AND DISPLAYING PLURAL DATA 失效
公开(公告)号：JPH05224867A
公开(公告)日：1993-09-03
申请号：JP2783892
申请日：1992-02-14
申请人： HITACHI LTD
发明人： NITO TAKASHI
IPC分类号： G06F3/14 , G06F3/048 , G06F17/30
摘要： PURPOSE:To improve retrieval efficiency in the case of visual retrieval by providing retrieval information in the past for each of a retrieving person and controlling a display period at the time of retrieval based on the retrieval information. CONSTITUTION:Before executing retrieval, the retrieving person is specified by a retrieving person identifying device 7. Next, retrieving person information showing which kind of retrieval has been executed by the retrieving person in the past is read from a storage device 5. Afterwards, data accordant with retrieval conditions are read from the storage device 5 by a controller 1 according to the input instruction of a retrieval instruction input device 6. Then, the weight of display time is calculated according to information obtained from the retrieving person information concerning an object to execute visual retrieval. Based on the calculated result of this display time, it is set to a display time setting part as a parameter, and respective data are displayed and switched. Then, the retrieval information is updated corresponding to the retrieved result.

4. 发明专利

JPH06259242A METHOD AND DEVICE FOR CORRECTING BASIC CONTROL PROGRAM 失效
公开(公告)号：JPH06259242A
公开(公告)日：1994-09-16
申请号：JP4251693
申请日：1993-03-03
申请人： HITACHI LTD
发明人： NITO TAKASHI
IPC分类号： G06F9/06
摘要： PURPOSE:To reduce cost for correction processing to a shipped device by easily correcting a basic control program (including self-diagnosis/initial set processing) stored in a non-volatile medium in the state of integrating it into the device. CONSTITUTION:This device is provided with a reloadable nonvolatile memory 1-12 for storing the correction program of the basic control program in any prescribed form so as to be operated when starting the device, processing to copy the basic control program from a ROM 1-4 to a basic memory 1-3 and processing to decide whether the correction information is existent in the non- volatile memory 1-12 or not and whether the information is proper or not is performed on the initial stage of that program to be executed when starting the device, and the program is corrected according to that information.

5. 发明专利

JPS6460149A SYSTEM FOR COMPRESSING MULTIGRADATION PICTURE INFORMATION 失效
公开(公告)号：JPS6460149A
公开(公告)日：1989-03-07
申请号：JP21709387
申请日：1987-08-31
申请人： HITACHI LTD
发明人： NITO TAKASHI
IPC分类号： H04N1/41
摘要： PURPOSE:To obtain a high compressibility by surely leaving a discontinuous point, as a code, in which the luminance of picture information is extremely changed, simultaneously, sampling to a part in which the luminance is gently changed in a prescribed interval to be interpolated by a function and executing a data compression. CONSTITUTION:The picture information is made into the line data of a scanning line yo by scanning, discontinuous points x1-x3 of the luminance of the line data are extracted, the binarizing data of information to binarize and indicate the discontinuous points are encoded, and thereby, first compression data are obtained. Further, the line data of the scanning line y0 are divided at the discontinuous points x1-x3 and made into segment data. From the both edge points of respective segment data and the data of inflection points, a sampling interval is set and sampled. Sampling data made into second compression data along with sampling interval data. Of the first compression data and the second compression data, compression line data is composed. Thus, the high data compressibility can be obtained.

6. 发明专利

JPS6379128A CONTROL SYSTEM FOR MOUSE DATA 失效
公开(公告)号：JPS6379128A
公开(公告)日：1988-04-09
申请号：JP22351386
申请日：1986-09-24
申请人： HITACHI LTD
发明人： NITO TAKASHI
IPC分类号： G06F3/043 , G06F3/03
摘要： PURPOSE:To improve operability of a mouse by adding a button switch to the mouse to hold the maximum shift value of the mouse while said switch is kept pushed and therefore limiting the mouse operating space. CONSTITUTION:When a button switch of a mouse 10 is kept OFF, the data on the mouse 10 are fetched by a data holding device 2 every fixed time via a reception buffer 1 and a selector 3 and then sent to a system device 11 via a transmission buffer 9. While the selector 3 is changed over by a signal 5 when the button switch is kept ON. Then the data on the mouse 10 is compared with the data held by the device 2 by a comparator 4. Thus the data having the larger absolute value is held by the device 2 and sent to the device 11 via the buffer 9. As a result, the maximum shift value of the mouse 10 is held as long as the mouse 10 is operated with the button switch kept pushed. Thus the operability of the mouse 10 is improved.

7. 发明专利

JPH0319038A DATA TRANSMISSION/RECEPTION DEVICE 失效
公开(公告)号：JPH0319038A
公开(公告)日：1991-01-28
申请号：JP15236489
申请日：1989-06-16
申请人： HITACHI LTD , HITACHI COMPUTER ENG
发明人： AKEURA NOBUO , NITO TAKASHI , SETO NOBUHIRO
IPC分类号： G06F11/22 , G06F13/00
摘要： PURPOSE:To inprove the test coverage for an abnormality check function and its after-process by adding a data conversion means to a return circuit means and converting the data to send it to a reception circuit when a return test is carried out by a transmission/ reception device. CONSTITUTION:A data conversion means is added to a return circuit means 1A. When a return test is carried out between a transmission circuit 18 and a reception circuit 19, the data conversion means converts the data received from the circuit 18 and sends it to the circuit 19 with an instruction of a host processor (CPU) 11. In this case, the abnormal result of comparison is produced by the function of a circuit 1A. Thus the operation can be shifted to the process of an abnormal system with no intervention given to the process of a microprogram from the CPU 11. Thus the test coverage is improved together with improvement of the reliability for the processes of the abnormal system such as the recovery of the retry and data, the analysis of the error factor, etc.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式