JPH0773084A - Compact disk memory search device - Google Patents

Abstract

(57) [Abstract] [Purpose] A CD-ROM search device with excellent workability that can transfer the next index data to the search memory during search processing and perform sequential index data search processing at high speed. The purpose is to provide. A CD-ROM read memory 14 for storing data read from a CD-ROM 10, a search memory 13 for storing the data and performing a search process, and a CD
-The contents of the ROM read memory 14 are searched memory 1
Data transfer command means 18 for determining whether or not to transfer the data to the No. 3, and a transfer command output from the data transfer command means 18, and the contents of the CD-ROM read memory 14 to the search memory 13. It comprises a data transfer means 16 for transferring and a search memory management means 19 for managing the data in the search memory 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention retrieves necessary information from information stored in an information recording medium such as a compact disk memory (hereinafter abbreviated as CD-ROM) and displays the retrieval result on a display device. The present invention relates to a CD-ROM search device.

[0002]

2. Description of the Related Art In recent years, a CD-ROM retrieval device using a CD-ROM such as an electronic book as a storage medium has been used as a substitute for a dictionary which is a paper medium.

A conventional CD-ROM retrieval device will be described below. FIG. 4 is a diagram showing a hardware configuration of a general CD-ROM search device, and FIG. 5 is a conventional CD-R.
FIG. 7 is a block diagram showing a configuration of an OM search device, and FIG. 6 is a diagram showing a structure of a general CD-ROM search index. Reference numeral 1 is a keyboard as an input means for search words and the like, 2 is a liquid crystal display device (hereinafter abbreviated as LCD) as a display device for displaying the search words, search results and the like, and 3 is an LCD
2, an LCD control device for controlling 2, a central processing unit for controlling the entire CD-ROM search device, 5 a random access memory (hereinafter abbreviated as RAM), 6 a read only memory (hereinafter abbreviated as ROM), 7 Is a CD-ROM that serves as a recording medium for a large-capacity database, 8 is a CD drive in which the CD-ROM is set, and 9 is a CD control device for controlling the CD drive 8. In FIG. 5, 10 is a CD-ROM in which the data to be searched is stored, 11
Is a CD-for reading data from the CD-ROM 10.
ROM reading device, 12 is a search processing means for performing a data search process by a designated keyword, 13 is a search memory for storing data to be searched by the search processing device, and 14 is a read from the CD-ROM read device 11. CD-ROM read memory for temporarily storing the data, 15 is request data transfer command means for issuing a transfer command for transferring the data in the CD-ROM read memory 14 to the search memory 13, and 16 is a request Data transfer means for transferring the data in the CD-ROM read memory 14 to the search memory 13 based on the command of the data transfer command means 15, and 17 is sequentially stored in the CD-ROM 10 for searching in advance. Is the index data.

The operation of the CD-ROM retrieving apparatus constructed as above will be described below. FIG. 7 is a schematic flowchart of the index data reading process of the conventional CD-ROM search device. In FIG.
First, based on a search word input from the keyboard 1 or the like, the search processing means 12 causes the CD-ROM reading device 11 to operate.
A read request for the index data 17 is issued to (S
1). Next, the CD-ROM reading device 11 receives the CD-ROM 1 based on the read request from the search processing means 12.
One block of index data 17 is read from 0 and stored in the CD-ROM read memory 14 (S
2). Next, the request data transfer command means 15 causes the CD-R
It is checked whether the index data 17 stored in the OM reading memory 14 is the index data 17 requested by the search processing means 12 (S3). If No, a request to read the next index data 17 is issued to the CD-ROM reading device 11 to jump to S2, and Y
If it is es, the CD-ROM read memory 14
In order to transfer the index data 17 therein to the search memory 13, a transfer command is issued to the data transfer means 16, and the data transfer means 16 receives the CD-ROM read memory 14 based on the transfer command from the request data transfer command means 15. The index data 17 stored in is transferred to the search memory 13 (S4). Next, the search processing means 12 accesses the search memory 13 in which the index data 17 is stored and performs a search process as to whether or not there is an index key that matches the input search word. If the corresponding index key cannot be found in the search memory 13, the CD-ROM reading device 11 is requested to read the next index data 17, and the search memory 1 is searched.
When an index key that matches the search term input in 3 is found, an address pointer or the like in which the target information is stored in addition to the corresponding index key is also acquired, and based on this address pointer or the like, The desired information is accessed and displayed on the display device.

[0005]

However, in the above-mentioned conventional configuration, from the time when the read request for the index data 17 is issued to the CD-ROM reading device 11 until the index data 17 is transferred to the search memory 13, There is a problem in that the search process is interrupted, the search process takes time, and workability is lacking.

The present invention solves the above-mentioned conventional problems, and the workability of transferring the next index data to the search memory during the search process and performing the search process of the sequential index data at high speed. Excellent CD
-To provide a ROM retrieval device.

[0007]

In order to achieve this object, a CD-ROM retrieval device of the present invention stores a CD-ROM reading memory for storing data read from a CD-ROM, and stores the data. From a search memory for performing a search process, data transfer command means for determining whether or not to transfer the contents of the CD-ROM read memory to the search memory and outputting a transfer command, and the data transfer command means. A configuration is provided that includes data transfer means for transferring the contents of the CD-ROM read memory to the search memory according to the output transfer command, and search memory management means for managing the data in the search memory. Have

Here, as the data transfer command means, a data read instruction is issued prior to a data read request from the search memory management means, or data following the requested data is not requested by the search memory management means. The one that transfers to the search memory is used. Also,
As the search memory management means, the search memory is constantly monitored, a data read request is issued when necessary, a plurality of blocks of data can be stored in the search memory, and data can be stored even during search. In addition to the above, the search processing means is used to notify the address at which the target data is stored.

[0009]

With this configuration, by providing the search memory management means, it is possible to store a plurality of blocks of data in the search memory and transfer the data to the search memory even while the search is being executed. Also,
Since the data block following the requested data block is transferred to the search memory by the data transfer command means regardless of whether there is a request, the search process can be executed at high speed.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows C in one embodiment of the present invention.
It is a block diagram which shows the structure of a D-ROM search device. 1
0 is a CD-ROM, 11 is a CD-ROM reading device,
Reference numeral 12 is a search processing means, 13 is a search memory, and 14 is a CD.
-ROM reading memory, 16 is a data transfer means, which are the same as those in the conventional example, and therefore the same reference numerals are given and the description thereof is omitted. Reference numeral 18 is a data transfer command means for determining whether or not the contents of the CD-ROM reading memory 14 are transferred to the search memory 13 and issuing a transfer command. Reference numeral 19 is for searching for managing the data in the search memory 13. It is a memory management means.

The operation of the CD-ROM retrieval device constructed as above will be described below. FIG. 2 is a schematic flow chart of the data transfer command means of the CD-ROM search device in one embodiment of the present invention, and FIG. 3 is a schematic flow chart of the search memory management means of the CD-ROM search device in one embodiment of the present invention. Is. First, the overall processing will be described. First, based on the search word input from the keyboard 1 or the like, the search processing means 12 requests the search memory management means 19 for the address of the search memory 13 in which the index data 17 to be searched is stored. , The search memory 13 based on this address
The search process is performed within. On the other hand, the search memory management means 19 constantly checks whether the target index data 17 is stored in the search memory 13. If the target index data 17 is not stored, or if it has been searched and can be further stored, the CD-
A read request for the index data 17 is issued to the ROM reading device 11. The CD-ROM reading device 11 reads C based on the read request from the search memory management means 19.
One block of index data 17 is read from the D-ROM 10 and stored in the CD-ROM read memory 14. The data transfer command means 18 checks whether or not the index data 17 is the target index data 17 in the CD-ROM reading memory 14, and if it is the target index data 17, the data transfer means 16 sends the CD-ROM to the data transfer means 16. A transfer command is issued to transfer the index data 17 in the ROM read memory 14 to the search memory 13.

Next, the outline of the data transfer command means 18 will be described with reference to FIG. First, the data transfer command means 18 checks whether or not the read memory management means 19 has issued a read request for the index data 17 (S).
5). If No, the process jumps to S9, and if Yes, it is checked whether the index data 17 read in the CD-ROM read memory 14 is the target index data 17 (S6). If No, the CD-ROM reading device 11 is instructed to read the next index data 17 one block, and the index data 17 is stored in the CD-ROM reading memory 14, and the index data 17 is read. When the data 17 is read into the CD-ROM reading memory 14, the process jumps to S5 and repeats the processing (S10),
If Yes, the transfer flag indicating that the target index data 17 is transferred to the search memory 13 is turned on (S7). Next, a transfer command is issued to the data transfer means 16 and the process is terminated (S8). If a request for reading the index data 17 is not issued from the search memory management means 19 in S5, the target index data 17
Is checked immediately by the transfer flag (S
9). If No, the process is terminated, and if Yes, the process jumps to S8.

Next, an outline of the search memory management means 19 will be described with reference to FIG. The search memory management means 19 checks whether the index data 17 requested by the search processing means 12 is stored in the search memory 13 (S11). If No, the CD-ROM reading device 11 is requested to read the index data 17 (S12), and the process is terminated. If Yes, the search memory 1 in which the index data 17 is stored is stored.
The address of No. 3 is acquired (S13), and the process ends.

[0014]

As described above, according to the present invention, a plurality of data blocks can be transferred to the search memory by improving the data transfer command means, and the search memory is equipped with the search memory management means. Multiple blocks of data can be stored in the memory, and data can be transferred to the search memory even while the search is in progress, so the search processing can be performed at high speed, and the waiting time for the operator can be reduced. CD-RO with excellent performance
The M search device can be realized.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of a CD-ROM search device according to an embodiment of the present invention.

FIG. 2 is a schematic flowchart of a data transfer command means of the CD-ROM search device according to the embodiment of the present invention.

FIG. 3 is a schematic flowchart of search memory management means of the CD-ROM search device according to the embodiment of the present invention.

FIG. 4 is a diagram showing a hardware configuration of a general CD-ROM search device.

FIG. 5 is a block diagram showing a configuration of a conventional CD-ROM retrieval device.

FIG. 6 is a diagram showing the structure of a general CD-ROM search index.

FIG. 7 is a schematic flowchart of index data reading processing of a conventional CD-ROM search device.

[Explanation of symbols]

 1 Keyboard 2 Liquid Crystal Display (LCD) 3 LCD Controller 4 Central Processing Unit 5 Random Access Memory (RAM) 6 Read Only Memory (ROM) 7 CD-ROM 8 CD Drive 9 CD Controller 10 CD-ROM 11 CD- ROM reading device 12 Search processing means 13 Search memory 14 CD-ROM read memory 15 Request data transfer command means 16 Data transfer means 17 Index data 18 Data transfer command means 19 Search memory management means

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Claims (1)

[Claims] 1. A compact disc memory (CD-RO
M) a compact disk memory read memory for storing the data read, a search memory for storing the data and performing a search process, and a content of the compact disk memory read memory transferred to the search memory. Data transfer command means for determining whether or not there is a transfer command, and data transfer means for transferring the contents of the compact disk memory read memory to the search memory according to the transfer command output from the data transfer command means , A compact disk memory search device, comprising: a search memory management means for managing the data in the search memory.