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1. 发明专利

JPS6213687B2 失效
公开(公告)号：JPS6213687B2
公开(公告)日：1987-03-28
申请号：JP10400779
申请日：1979-08-17
申请人： HITACHI LTD
发明人： HOTSUTA MASAO , MYAMOTO KEIICHI , YOKOZAWA NORIO , OOSHIMA YOSHIMITSU
IPC分类号： G06F3/041 , G01B7/00 , G06F3/03 , G06K11/06

2. 发明专利

JPS60252968A MEMORY CONTROL SYSTEM 失效
公开(公告)号：JPS60252968A
公开(公告)日：1985-12-13
申请号：JP10837184
申请日：1984-05-30
申请人： HITACHI LTD
发明人： KUROSU MASAAKI , OOSHIMA YOSHIMITSU , TAKECHI NORIYUKI
IPC分类号： G06F12/00 , G06F12/02
摘要： PURPOSE:To reduce load of garbage collection by providing an area used exclusively for fixed data on a memory map, declaring fixation of data structure by specified function, and shifting the structure from a dynamic memory area to an area for fixed data. CONSTITUTION:To shift a specific list structure to a fixed list area, a function such as (FIXQ variable name) is prepared. When FIXQ is inputted, an objective list (variable) is copied from an area in use to a temporary fixing area, and registration of objective list is erased from utilized area. Then, the size TFS of the temporary fixed area is updated adding the size of the objective list, and an area for fixed list 18 is secured in a heap area. When reedition of once fixed list structure is desired, (UNFIXQ variable) is prepared, and thereby the list structure is copied from the fixed list area to the heap area, and alteration is made possible. In this case, those which were in the fixed list area become garbage, garbage collection of the fixed list area is made.

3. 发明专利

JPS59116937A Recording and reproducing device of optical data 失效
标题翻译：记录和重现光学数据设备
公开(公告)号：JPS59116937A
公开(公告)日：1984-07-06
申请号：JP21618983
申请日：1983-11-18
申请人： Hitachi Ltd
发明人： TAKASUGI KAZUO , OOSHIMA YOSHIMITSU , YOKOZAWA NORIO
IPC分类号： G11B3/00 , G11B7/00 , G11B7/0045 , G11B20/18
CPC分类号： G11B20/1833
摘要： PURPOSE:To execute suitably setting of an error correcting capacity and a criterion of re-write, so that the validity as a system can be raised, by selecting an error correcting function of an error correcting code so as to be larger than a degree of an error caused in the decision of re-write. CONSTITUTION:A modulation circuit 3 generates a write signal to a disk 4. A reproducing signal read out of the disk 4 is inputted to a data splitting circuit 6 through a demodulation circuit 5, and a data is split to a correcting unit from the reproducing signal, corrected by an error processing part 7, and fetched as a data DO. In this case, at the time of write, the data is written, also the written data is read out, the written data and the read-out data are compared by the part of a deciding circuit 8, and if an excessive error exists, re-write is executed by outputting a re-write control signal CS. That is to say, an error correcting capacity which a code has is selected larger than a degree of an error which is decided to be re-write, and when a degree of an error detected at the time of a write check does not reach the limit of the correcting capacity but is smaller than it, the error is decided to re-write.
摘要翻译：目的：为了适当地执行纠错能力的设定和再写入的准则，通过选择纠错码的纠错功能，可以提高作为系统的有效性，使其大于在重写决定中引起的错误。调制电路3向盘4产生写入信号。通过解调电路5将从盘4读出的再现信号输入到数据分离电路6，并将数据从再现部分分割为校正单元信号，由误差处理部分7校正，并作为数据DO取出。在这种情况下，在写入时，写入数据，读出写入的数据，写入的数据和读出的数据由判定电路8的一部分进行比较，如果存在过大的错误，通过输出重写控制信号CS来执行重写。也就是说，选择代码所具有的纠错能力大于被判定为重写的错误的程度，并且当在写入检查时检测到的错误程度未达到校正容量的限制但是小于它，错误被决定重新写入。

4. 发明专利

JPS58118278A KANA CHARACTERS KEY BOARD 失效
公开(公告)号：JPS58118278A
公开(公告)日：1983-07-14
申请号：JP34082
申请日：1982-01-06
申请人： HITACHI LTD
发明人： NAKAYAMA TAKESHI , OOSHIMA YOSHIMITSU , KUROSU MASAAKI , UCHIDA SHIGERU
IPC分类号： B41J5/10 , B41J5/40 , G06F3/02 , G06F17/22
摘要： PURPOSE:To obtain a character key board which provides a character arrangement easy to understand even by biginners while enabling quick shifting of keys by alloting kana characters to 3-level charactor keys by columns in the systematic table of the fifty sounds while operating the shaft of upper and lower levels with an index finger. CONSTITUTION:Kana characters are alloted to keys at three levels from the first (the lowest level) to third. Characters in the columns to and the column belonging to the systematic table of the fifty sounds are handled separately by right-or left-hand keys by cloumns; the character at the beginning of each column is keyed with the index finger and that at the end thereof with the fifth finger. The column is changed in the arrangement considering the greater frequency of the character . To enter a kana character at the upper level on two levels of character keys, keys G and H ( key) in the alphabet are pressed with the index finger. In other words, when entering a character at the upper level on the right or left side, the key on the opposite side is held down and then, the key of the desired character is pressed.

5. 发明专利

JPS57191742A JAPANESE SENTENCE INPUT SYSTEM 失效
公开(公告)号：JPS57191742A
公开(公告)日：1982-11-25
申请号：JP7650681
申请日：1981-05-22
申请人： HITACHI LTD
发明人： NAKAYAMA TAKESHI , KUROSU MASAAKI , OOSHIMA YOSHIMITSU , FUJIKATA KENJI , UCHIDA SHIGERU , NAKASHIMA AKIRA
IPC分类号： G06F17/21 , G06F3/00 , G06F3/01
摘要： PURPOSE:To make a character panel small-size and inexpensive, by indicating a square, which corresponds to a Kanji (chinese character) to be inputted, on the character panel to form the Kanji pattern and storing the Kanji pattern in a personal file and displaying it when this Kanji pattern does not exist on the character panel. CONSTITUTION:When coordinates (i, j) on a character panel 1 are indicated, a Kanji pattern corresponding to the code (i, j) is read out from a common file 12 and is displayed on a display device 15. When a Kanji pattern to be inputted exists on the character panel 1, the operator performs this opration. When a Kanji pattern to be inputted does not exist on the character panel, the operator depresses a register square of the character panel 1 and uses a region from coordinates (1, 1) to coordinates (24, 24) on the character panel 1 to depress positions marked with black circles in accordance with the character pattern to be inputted, and thus, the character pattern is displayed on the display device 15 in accordance with coordinates depressed on the character panel 1, and the Kanji pattern is written in a personal Kanji file 2 when the operator depresses the register square after completing the pattern.

6. 发明专利

JPS537129A SYMBOL INPUT UNIT 失效
公开(公告)号：JPS537129A
公开(公告)日：1978-01-23
申请号：JP8092176
申请日：1976-07-09
申请人： HITACHI LTD
发明人： OOSHIMA YOSHIMITSU , MIYAMOTO KEIICHI , FUTAMURA YOSHIHIKO
IPC分类号： G06F3/023 , G06F3/02
摘要： PURPOSE:To secure a dissolution of a figure limitation by realizing a use of plural pairs of columns without changing the size of the unit itself.

7. 发明专利

JPS5258311A TIME ERROR CORRECTING UNIT 失效
公开(公告)号：JPS5258311A
公开(公告)日：1977-05-13
申请号：JP13404275
申请日：1975-11-10
申请人： HITACHI LTD
发明人： OOSHIMA YOSHIMITSU
IPC分类号： H04N5/953 , G11B5/027 , G11B20/02
摘要： PURPOSE:To compensate the zitter of the signal having time axis error, by controlling the delay circuit so that the different delay time to the input signal is given with the time difference output according to the phase difference of two input signals.

8. 发明专利

JPS523344A LETTER PATTERN GENERATING SYSTEM 失效
公开(公告)号：JPS523344A
公开(公告)日：1977-01-11
申请号：JP7939575
申请日：1975-06-27
申请人： HITACHI LTD
发明人： FUJIKATA KENJI , OOSHIMA YOSHIMITSU , YOKOZAWA NORIO
IPC分类号： G11B20/00 , G06F3/14 , G06K15/00 , G06K15/10 , G09G5/00 , G09G5/24
摘要： PURPOSE:Generating a letter pattern in a higher speed in employing as a letter pattern memory a sequential read out memory unable to read out in parallel the data from plural tracks, but capable of reading out the data from any track.

9. 发明专利

JP2574741B2 失效
公开(公告)号：JP2574741B2
公开(公告)日：1997-01-22
申请号：JP4546984
申请日：1984-03-12
申请人： HITACHI LTD
发明人： TAKECHI NORYUKI , JURA KATSUHIKO , ABE MASAHIRO , OOSHIMA YOSHIMITSU
IPC分类号： G06F17/21 , G06F17/28 , G06F17/24

10. 发明专利

JP2539588B2 失效
公开(公告)号：JP2539588B2
公开(公告)日：1996-10-02
申请号：JP911094
申请日：1994-01-31
申请人： HITACHI LTD
发明人： YOKOZAWA NORIO , FUJIKATA KENJI , NAKAJIMA AKIRA , OOSHIMA YOSHIMITSU
IPC分类号： G06F17/22

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