JP2943574B2 - Compact disk memory search device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention searches necessary information from information stored in an information recording medium such as a compact disk memory (hereinafter abbreviated as CD-ROM) and displays the search 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 search apparatus using a CD-ROM as a storage medium, such as an electronic book, as a storage medium instead of a dictionary as a paper medium has been used.

[0003] A conventional CD-ROM search 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 diagram showing a conventional CD-R.
FIG. 6 is a block diagram showing a configuration of an OM search device, and FIG. 6 is a diagram showing a structure of a search index of a general CD-ROM. 1 is a keyboard as an input means of a search word and the like, 2 is a liquid crystal display device (hereinafter abbreviated as LCD) as a display device for displaying a search word, a search result and the like, 3 is an LCD
LCD control device for controlling 2; 4 for central processing unit for controlling the entire CD-ROM search device; 5 for random access memory (hereinafter abbreviated as RAM); 6 for read-only memory (hereinafter abbreviated as ROM); Is a CD-ROM serving 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, reference numeral 10 denotes a CD-ROM in which data to be searched is stored;
Is a CD-ROM for reading data from the CD-ROM 10.
ROM reading device, 12 is search processing means for performing data search processing by a designated keyword or the like, 13 is a search memory for storing data for which the search processing means performs search processing, and 14 is read from the CD-ROM read device 11 A CD-ROM read memory for temporarily storing the read data, 15 a request data transfer command means for issuing a transfer command for transferring data in the CD-ROM read memory 14 to the search memory 13, 16 a request Data transfer means 17 for transferring the data in the CD-ROM read memory 14 to the search memory 13 based on a command from the data transfer command means 15, and 17 is stored in advance in the CD-ROM 10 for search in advance. Index data.

[0004] The operation of the CD-ROM search device configured as described 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, on the basis of a search word input from the keyboard 1 or the like, the search processing means 12 executes the CD-ROM reading device 11
Issues a read request for the index data 17 to the
1). Next, the CD-ROM reader 11 reads the CD-ROM 1 based on a read request from the search processor 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 instructing means 15 outputs the CD-R
It is checked whether the index data 17 stored in the OM read 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, and the process jumps to S2, where Y
If es, the CD-ROM read memory 14
The data transfer means 16 issues a transfer command to the data transfer means 16 to transfer the index data 17 therein to the search memory 13, and the data transfer means 16 transmits the CD-ROM read memory 14 based on the transfer command from the request data transfer command means 15. Is transferred to the search memory 13 (S4). Next, the search processing unit 12 accesses the search memory 13 in which the index data 17 is stored, and performs a search process to determine whether there is an index key that matches the input search word. If the corresponding index key cannot be found in the search memory 13, a request to read the next index data 17 is made to the CD-ROM reader 11 and the search memory 1 is read.
If an index key that matches the search term input in 3 is found, an address pointer or the like in which target information is stored in addition to the corresponding index key is also obtained, and based on the address pointer and the like, The desired information is accessed and displayed on the display device.

[0005]

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

[0006] The present invention is intended to solve the above problems, the purpose index of the CD-ROM reading memory
Check if there is any data
The target index data is transferred to the search memory . This
Check the index data one after another
This makes it possible to perform sequential index data search processing at high speed, and to provide a CD-
It is an object to provide a ROM search device.

[0007]

In order to achieve this object, a CD-ROM search device according to the present invention comprises a CD-ROM read memory for storing data read from a CD-ROM, and a memory for storing the data. 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 A data transfer means for transferring the contents of the CD-ROM read memory to the search memory in accordance with the output transfer command, and a 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, and data subsequent to the requested data is provided without having a request from the search memory management means. What performs transfer to a search memory etc. is used. Also,
The search memory management means constantly monitors the search memory, issues a data read request as needed, enables storage of a plurality of blocks of data in the search memory, and can store data even during execution of the search. In addition to the above, a means for notifying the address where the target data is stored in the search processing means is used.

[0009]

With this configuration, by providing the search memory management means, a plurality of blocks of data can be stored in the search memory, and the data can be transferred to the search memory even during execution of the search. Also,
Since the data block following the requested data block is transferred by the data transfer command means to the search memory regardless of the presence or absence of the request, the search process can be executed at high speed.

[0010]

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.
FIG. 2 is a block diagram illustrating a configuration of a D-ROM search device. 1
0 is a CD-ROM, 11 is a CD-ROM reading device,
12 is a search processing means, 13 is a search memory, 14 is a CD
A ROM read memory 16 and a data transfer means 16 which are the same as those in the conventional example, and are denoted by the same reference numerals and description thereof is omitted. Reference numeral 18 denotes a data transfer instructing unit which determines whether or not to transfer the contents of the CD-ROM read memory 14 to the search memory 13 and issues a transfer instruction. 19 denotes a search for managing data in the search memory 13. It is a memory management means.

The operation of the CD-ROM search device configured as described above will be described below. FIG. 2 is a schematic flowchart of a data transfer command unit of the CD-ROM search device according to one embodiment of the present invention, and FIG. 3 is a schematic flowchart of a search memory management unit of the CD-ROM search device according to one embodiment of the present invention. It is. First, the overall processing will be described. First, based on a search word input from the keyboard 1 or the like, the search processing unit 12 requests the search memory management unit 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 processing 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 has been searched and can be further stored, the CD-
A request to read the index data 17 is issued to the ROM reading device 11. The CD-ROM reading device 11 receives a read request from the search memory
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 read memory 14. 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 instructing unit 18 checks whether or not a read request for the index data 17 has been issued from the search memory managing unit 19 (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 one block of the next index data 17, and waits until the index data 17 is stored in the CD-ROM reading memory 14. When the data 17 is read into the CD-ROM read memory 14, the process jumps to S5 and repeats the process (S10).
If the answer is Yes, the transfer flag for transferring the target index data 17 to the search memory 13 is turned ON (S7). Next, a transfer command is issued to the data transfer means 16 to end the processing (S8). If the search memory management unit 19 has not issued a read request for the index data 17 in S5, the target index data 17
The transfer flag is checked to determine whether or not the data has just been transferred (S
9). If the determination is No, the process ends. If the determination is 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 unit 19 checks whether the index data 17 requested by the search processing unit 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 ends. If Yes, the search memory 1 in which the index data 17 is stored.
The address of No. 3 is obtained (S13), and the process ends. This
Thus, the requested index data is examined one after another.
Search for sequential index data
Processing can be performed at high speed, improving the workability of search processing
can do.

[0014] As described above, the present invention, it can be transferred a plurality of data blocks by improving the data transfer command means to a search for memory and more the search for memory by having a search for memory management means Block data can be stored . Furthermore, CD-ROM reading
If the target memory has the target index data
Transfer the target index data to the search memory
be able to. Therefore, the desired index data
By checking one after another
Dex data search processing can be performed at high speed .
Thus, it is possible to realize a CD-ROM search device excellent in workability that can reduce the waiting time of the operator.

[Brief description of the drawings]

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

FIG. 3 is a schematic flowchart of a search memory management unit of the CD-ROM search device according to one 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 search device.

FIG. 6 is a diagram showing a 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]

 Reference Signs List 1 keyboard 2 liquid crystal display device (LCD) 3 LCD control device 4 central processing unit 5 random access memory (RAM) 6 read-only memory (ROM) 7 CD-ROM 8 CD drive 9 CD control device 10 CD-ROM 11 CD- ROM read 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

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code Fig11B 27/10 A

Claims (1)

(57) [Claims] 1. A compact disk memory (CD-RO)
M) a memory for reading compact disk memory for storing data read from M), a memory for searching for storing the data and performing search processing, and a content of the memory for reading compact disk memory.
Check whether the target data exists in the
If there is, transfer the target data to the search memory.
A data transfer instruction section for outputting a transfer instruction to so that a data transfer means for transferring the contents of the memory for the compact disc memory read by the transfer command outputted from the data transfer command means in said search memory, the search The target data exists in the memory for
Is checked, and if it does not exist or has been searched,
And a search for memory management means from transfected disk memory tubes <br/> management to read the data, objects to the compact disc memory reading memory
Check if the above data exists, and if so,
Transferring the desired data to the search memory
A compact disk memory search device that performs a sequential search process by using