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1. 发明专利

JPH067373B2 失效
公开(公告)号：JPH067373B2
公开(公告)日：1994-01-26
申请号：JP18262684
申请日：1984-09-03
申请人： HITACHI LTD
发明人： SEKI TAKAAKI , YAMAMOTO AKIRA , KITAJIMA HIROYUKI , SATO KAZUHIRO , KURANO AKIRA , FUKUSHIMA SHINICHI
IPC分类号： G06F3/06 , G06F12/00 , G06F13/00

2. 发明专利

JPS63208152A PARALLEL PROCESSING SYSTEM BETWEEN SEPARATE PROCESSOR AND HOST PROCESSOR 失效
公开(公告)号：JPS63208152A
公开(公告)日：1988-08-29
申请号：JP4022287
申请日：1987-02-25
申请人： HITACHI LTD
发明人： SEKI TAKAAKI , TSUCHIDA MASASHI , YAMAMOTO AKIRA , KITAJIMA HIROYUKI , FUKUSHIMA SHINICHI
IPC分类号： G06F15/16
摘要： PURPOSE:To reduce the whole arithmetic processing time by constituting the titled system so that when an exclusive processor provided separately from a host computer executes arithmetic processing of data of this file on an external storage device, the host side calculates this data, and the exclusive processor processes other data than an arithmetic object of the host side. CONSTITUTION:Host-side processing in a host-side preprocessing system in an exclusive processor connection searches a page of a file of an arithmetic object on a main storage device 2, and when its output is requested to an external storage device 6, the same arithmetic processing as that requested to the exclusive processor is executed. Also, skip information 23 showing which order of block on the external storage device a page which has become an arithmetic object at the host side corresponds to is sent to the exclusive processor. The exclusive processor can execute arithmetic processing of other block then a page of the file which has been processed by the host side, based on the skip information.

3. 发明专利

JPS62191921A DATA SEARCH SYSTEM 失效
公开(公告)号：JPS62191921A
公开(公告)日：1987-08-22
申请号：JP3426586
申请日：1986-02-19
申请人： HITACHI LTD , HITACHI SOFTWARE ENG
发明人： SATO KAZUHIRO , FUKUSHIMA SHINICHI , MANCHU SHIGERU , NAKAMURA HIROSHI , TSUCHIDA MASASHI
IPC分类号： G06F17/30
摘要： PURPOSE:To attain the quick data search processing by providing a search direction decision means which decides the search direction of a data string from its maximum and minimum values and a data value to be searched. CONSTITUTION:This system intends that in order to avoid the sequential search processing of the prioritized data string the search direction of the data string, its search range and the position of search start data and information on the data position to be searched next time are obtained. Namely the data processing system 10 depends on a support function and is composed of a variety of elements. One of critical elements is a data search processing part 11, which consists of a search direction decision means to set the search direction, search start position, search range and search middle position of the data string, and a part to actually compare them. Data to process the data processing system 10 is stored in a storage device 13 (data base).

4. 发明专利

JPS6162124A Data transfer system 失效
标题翻译：数据传输系统
公开(公告)号：JPS6162124A
公开(公告)日：1986-03-31
申请号：JP18262684
申请日：1984-09-03
申请人： Hitachi Ltd
发明人： SEKI TAKAAKI , YAMAMOTO AKIRA , KITAJIMA HIROYUKI , SATO KAZUHIRO , KURANO AKIRA , FUKUSHIMA SHINICHI
IPC分类号： G06F3/06 , G06F12/00 , G06F13/00
摘要： PURPOSE: To reduce a CPU usage time and to reduce a main memory volume and the volume of data transfer by sending the information of a block which includes records with the specified conditions and location information to which the records made to coincide with the specific conditions are positioned in a transferring data.
CONSTITUTION: When the demand of updating is issued from an outside memory device 4 to a main memory device 2, an operation part 35 discriminates each block whether there are records corresponding to the specified condition within the block or not, and if such records exist, it calculates the address of such records. As the result of the calculation, an output part 36 checks a buffer ID and a process demand from the buffer state table 34, and transfers the block among the buffer for block corresponding to buffer ID and a processing demand ID corresponding thereto from buffer part 33 to a device 2.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了减少CPU使用时间，并通过发送包含具有指定条件的记录的块的信息减少主存储器容量和数据传输量，记录与特定条件一致的位置信息位于传输数据中。构成：当从外部存储装置4向主存储装置2发出更新的需求时，操作部35判别各块是否存在与块内的规定条件对应的记录，如果存在这样的记录，它计算这些记录的地址。作为计算的结果，输出部分36从缓冲器状态表34检查缓冲器ID和处理要求，并将缓冲器ID对应的块缓冲器和对应于缓冲器ID的处理需求ID从块缓冲器部分33传送到设备2。

5. 发明专利

JPS60178547A DATA PROCESSING SYSTEM 失效
公开(公告)号：JPS60178547A
公开(公告)日：1985-09-12
申请号：JP3231284
申请日：1984-02-24
申请人： HITACHI LTD
发明人： YAMAMOTO AKIRA , NISHIGAKI TOORU , KITAJIMA HIROYUKI , SATOU KAZUHIRO , TAMIYA TOSHIHIKO , FUKUSHIMA SHINICHI
IPC分类号： G06F3/06 , G06F7/24 , G06F12/00 , G06F17/30
摘要： PURPOSE:To speed up relational arithmetic without increasing the load on a CPU by performing part of the relational arithmetic at the stage of data transfer from an auxiliary storage medium to a main storage device. CONSTITUTION:Records consisting of >=1 field are arranged successively at input/output devices 15a-15n. The input/output devices 15a-15n are connected to the CPU10 through a controller 14, sorting device 13, and channel 12. When plural records are transferred from the input/output devices 15a-15n to the CPU10, each record is divided into plural and the buffering and relational arithmetic of records are performed, block by block.

6. 发明专利

JPS6079441A PROCESSING SYSTEM FOR ENQUIRY TO DATA BASE 失效
公开(公告)号：JPS6079441A
公开(公告)日：1985-05-07
申请号：JP18672983
申请日：1983-10-07
申请人： HITACHI LTD
发明人： SATOU KAZUHIRO , KANEKO ITARU , FUKUSHIMA SHINICHI
IPC分类号： G06F12/00 , G06F17/30
摘要： PURPOSE:To improve the efficiency of inquiry processing to a data base by clustering relative inquiries for the data base, and scheduling data base processing on the basis of that. CONSTITUTION:A data base processing system 2 consists of a system control part 4 which controls the whole system on the basis of a data base processing request inputted from a terminal group 1, a transaction cluster generation/control part 5 which clusters processing requests, a command cluster generation/ control part 6 which clusters commands constituting said processing requests, an optimization processing part 7 for commands, and a code generation/execution part 8 which controls execution. The data base 3 consists of plural relations R1, R2... and is a relational data base containing data described in two-dimensional table form.

7. 发明专利

JPS6417122A METHOD AND DEVICE FOR RETRIEVING DATA 失效
公开(公告)号：JPS6417122A
公开(公告)日：1989-01-20
申请号：JP17297887
申请日：1987-07-13
申请人： HITACHI LTD
发明人： KITAJIMA HIROYUKI , YAMAMOTO AKIRA , FUKUSHIMA SHINICHI , KISHI KAZUYA
IPC分类号： G06F17/30
摘要： PURPOSE:To successively obtain the tables of the descendant or ancestor element gatherings of the sequential generations, by using a table of designated element gatherings as a 1st initial gathering and then repeating the collating processes. CONSTITUTION:A CPU 1 sets a variable (h) showing a hierarchical level at 0 and registers the names and the number of elements into an intermediate element table (1). The information are sent to a sorter 4 and sorted and then registered into an intermediate element table (2). These sorted information are sent to a sorted information buffer 32. A prejoin device 3 reads a parentage table 51 into an input buffer 33 and collated with the table (2) via a collation processing part 31. This collation result is outputted to an output buffer 34 and registered into the table (1). When the reading action is through with the parentage, the descendant elements are read out of a descendant element list 81 and sorted by the sorter 4. These sorted elements are sent to the buffer 32 and collated with a parts information table 61 via the part 31. This collation result is outputted continuously to a descendant element attribute table 71 up to the end of the table 61.

8. 发明专利

JPS63271525A DATA PROCESSOR 失效
公开(公告)号：JPS63271525A
公开(公告)日：1988-11-09
申请号：JP10424587
申请日：1987-04-30
申请人： HITACHI LTD
发明人： TSUCHIDA MASASHI , SATO KAZUHIRO , OMACHI KAZUHIKO , YAMAMOTO AKIRA , OSONE TADASHI , FUKUSHIMA SHINICHI , YAMASHITA YOSHIAKI
IPC分类号： G06F12/00 , G06F17/30
摘要： PURPOSE:To decrease the number of times of checking on a main storage and to perform join processing at relatively low cost by performing matching operation by using plural hash functions and the applying plural hash functions. CONSTITUTION:One hash function (BMH) is applied to a keyword string to generate HBM 170 in synchronism with the data transfer of the keyword string from a secondary storage device, etc., and at the same time, the other hash function (HPH) is applied to this keyword string to generate HPM 180. Then the BMH is applied to a search key string in synchronism with the data transfer of the search key string to a result, which is compared with the HBM; and the HPH is applied to the search key string to obtain TPM, which is compared to perform search processing. Consequently, processing for checking whether or not the keyword string contains respective data of the search key string is realized by said processing. Consequently, a great decrease in channel load is made.

9. 发明专利

JPS63263524A DATA STRUCTURE CONVERTING SYSTEM 失效
公开(公告)号：JPS63263524A
公开(公告)日：1988-10-31
申请号：JP9731087
申请日：1987-04-22
申请人： HITACHI LTD
发明人： SEKI TAKAAKI , KITAJIMA HIROYUKI , YAMAMOTO AKIRA , TSUCHIDA MASASHI , FUKUSHIMA SHINICHI , KURANO AKIRA
IPC分类号： G06F3/06 , G06F12/00 , G06F17/16
摘要： PURPOSE:To reduce the data arrangement change processing in the data reception side, to improve the processing efficiency and to shorten the processing time by converting the data structure in data transfer units in accordance with a data structure conversion request to transfer data at the time of transferring data existing in a data storage medium to another data storage medium. CONSTITUTION:A data structure converter 3 is newly provided between an external storage device 4 and a main storage device 2; and when a CPU 1 issues a request for data transfer from the external storage device 4 to the main storage device 2 or from the main storage device 2 to the external storage device 4, the data structure converting request which prompts transposition of significant data set units in each block as a data transfer unit is transferred to the data structure converter and data arrangement in the block is converted on the basis of this request to transfer data to the main storage device 2 or the external storage device 4. Thus, the data arrangement processing time in the vector instruction generation processing on the side of the CPU 1 is shortened.

10. 发明专利

JPS63208138A BUFFER ALLOCATION MANAGING SYSTEM FOR DATA BASE 失效
公开(公告)号：JPS63208138A
公开(公告)日：1988-08-29
申请号：JP4022387
申请日：1987-02-25
申请人： HITACHI LTD
发明人： SEKI TAKAAKI , TSUCHIDA MASASHI , YAMAMOTO AKIRA , KITAJIMA HIROYUKI , FUKUSHIMA SHINICHI
IPC分类号： G06F12/00 , G06F12/02
摘要： PURPOSE:To efficiently use a buffer, and to reduce the processing time of a data base operation by predicting the ratio of the generation of a data conforming to the condition of the data base operation, and deriving an optimum buffer size. CONSTITUTION:The file name of statistical information corresponding to a table, which becomes an object of an operation is derived from a statistical information managing block 42, thereafter, the statistical information of its file name is inputted to a statistical information use buffer. Subsequently, based on the conditional expression of a command delivered to a data base operation exclusive processor 7, and a column, a predicted entry number is derived with regard to the column of the statistical information. Next, each column size of a column for an output result is fetched from an operation processing request managing block 41 and a total size is derived, and based thereon, the buffers for the number of data base allocated for the command concerned is calculated. A buffer management control part 33 secures an idle buffer from the buffer for the data base by the number of calculated buffers, and inputs the result of operation.

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