JPS583152Y2 - Kensakuuchi - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in a microfiche retrieval device that prevents erroneous microfiche retrieval and erroneous confirmation of the microfilm position within the microfiche.

2. Description of the Related Art Conventionally, there is one shown in FIG. 1 as an example of a microfiche stored in a retrieval device.

In other words, the microfiche 1 has a microfilm 2 that can reduce and record a large amount of data sequentially.
are arranged regularly, and a title column 3 is provided at the bottom edge of the microfiche 1, and a coat frame with a code symbol 4 corresponding to the fish number is provided at the bottom edge of the microfiche 1. 5 is provided.

Note that the title field 3 contains information such as the date of conventional photography.

Therefore, a large number of such microfiche 1 are normally stored in a storage container such as a car cell, and only desired data is retrieved using a retrieval device as shown in FIG.

That is, when a search command 21 containing the code symbol 4 provided on the desired microfilm 1 and the X-axis number and Y-axis number of the microfilm 2 on which the desired data is recorded is sent to the control circuit 22.

The control circuit 22 separates the fish select signal, X-axis signal, and Y-axis signal and converts them into codes necessary for mechanism control.

Therefore, each of the above signals is transmitted to an amplifier 23, 24, 2, respectively.
5 and is amplified to a level necessary to drive a mechanism section (not shown).

Thus, each amplified output 23a, 24a.

25a, the mechanical section of the search device searches for a desired microfiche 1 and positions the microfilm 2.

When the operation is completed, the microfilm 2 of the retrieved microfiche 1 is projected onto the screen.

However, the above-mentioned search device only searches for microfiche 1 and projects the image, but the positions of the searched microfiche 1 and microfilm 2 are not confirmed. Furthermore, even if the microfilm 2 is incorrectly positioned, there is a drawback that the image is projected as is.

In other words, there is a possibility that incorrect information may be projected onto the screen of the search device, which may reduce the reliability of the search device.

The present invention was developed in view of the above circumstances, and its purpose is to be able to search for desired microfiche and microfilm based on a search command, and to check whether the microfiche and microfilm are correct. The purpose of this invention is to provide a search device with the function of

An embodiment of the present invention will be described below with reference to FIGS. 3 to 5.

Reference numeral 31 in the figure shows an example of a microfiche used in a search device.
are arranged regularly, and a title column 3 is provided at the lower end of the microfiche 31, and a fiche number 32 and a code symbol, such as a barcode 33, encoded with the fiche number 32 are photographed.
Furthermore, a coat frame 5 is provided at the lower edge portion, into which a retrieval code portion 4 corresponding to the fish number 32 can be cut out.

(See FIG. 3) Also, FIG. 4 shows a code reading unit which is a part of the search device and is adapted to read the bar code 33 photographed in the title field 3.

That is, the code reading unit 34 includes a light source such as a lamp 34a that is provided on one side of the microfiche 31 and illuminates the barcode 330 portion, and a photoelectric converter that receives light transmitted through the barcode 33 portion on the other side. Element 3
4b.

Next, FIG. 5 shows the prongs of the search device.

In the figure, 41 is the desired fish number 32 to be searched and the preset X-axis number of the microfilm 31;
A search command that specifies the Y-axis number, and 42 is the search command 4 above.
This is a register that stores the contents of 1.

Then, the search command signal stored in this register 42 is manually inputted to the control circuit 43 and sent to the microfiche 31.
It is separated into an X-axis signal and a Y-axis signal that specify the position of the microfilm 2.

Convert it to the code necessary to control the mechanism.

In other words, 44 is a fish, an amplifier that amplifies the select signal to the level necessary for driving the mechanical section, 45 is an amplifier that amplifies the X-axis signal to the level necessary for driving the mechanical section, and 46 is a Y-axis signal for the mechanical section. This is an amplifier for amplifying to a level necessary for driving the respective amplifiers 44, 45 .
46 is an output terminal 44a.

45a and 46a.

On the other hand, numeral 35 is an input terminal to which the output of the photoelectric conversion element 34b is manually input, and the read signal of the bar code 33 inputted to this input terminal 35 is inputted to an amplifier 47 and amplified.

Also. A register 48 is connected to the output side of the amplifier 47 and stores the read signal of the bar code 38.

Thus, the search command signal stored in the register 42 and the reading signal of the bar code 33 stored in the register 48 are input to a collation circuit 49 and are compared.

Note that 49a is an output terminal of the verification circuit 49.

Next, the operation of the present invention based on the above configuration will be explained.

4. When you press the code symbol selection switch, microfilm X-axis selection switch, and Y-axis selection switch provided in the operation panel (not shown) of the search device (not shown), the code part of the data to be searched is displayed. A search command 41 including an X-axis number and a Y-axis number is set.

When the start switch (not shown) provided in the operation panel is pressed, the code section 4. X-axis number and Y
A search command 41 consisting of an axis number is stored in a register 42.

Furthermore, while a search command signal is manually input to the control circuit 43,
The above microfiche 31 searched based on settings
The barcode 33 is irradiated with light from the light source 34a,
This transmitted light is received by the photoelectric conversion element 34b and read.

This output signal is then amplified from the input terminal 35 via the amplifier 47 and then stored in the register 48.

Thus, the search command signals input to the control circuit 43 are the fish, select signal, X-axis signal, and Y-axis signal, respectively.
The signals are separated into shaft signals and converted into codes necessary for controlling the mechanical parts (not shown).

Each of the above-mentioned signals is input to amplifiers 44, 45 and 46, where they are amplified to a level necessary for driving the mechanism, and output to output terminals 44a, 45a and 46a. The output of the search command signal is input to the verification circuit 49.

On the other hand, the barcode 33 of the microfiche 31 searched by the start switch (not shown) is read by the light source 34a and the photoelectric conversion element 34b, and this barcode reading signal is output to the input terminal 35.

This read signal is then input to amplifier 4T and amplified to a logic level, after which the output is input to register 48 and stored.

The read signal of the barcode 38 stored in this register 48 is input to the verification circuit 49.

Therefore, the collation circuit 49 collates the search command signal stored in the register 42 and the reading signal of the barcode 33 stored in the register 48 to determine whether or not they match. Result output terminal 49
can be output to a.

That is, the searched microfiche 31 can be identified by comparing the code section 4 corresponding to the fish number 32 and the barcode 33 photographed in the title field 3, so that the microfiche 31 is the desired correct microfiche. It is possible to check whether it is 31 or not.

In addition, in one embodiment of the present invention, the code part corresponding to the fish number of the microfiche is checked by comparing it with a coded symbol of the fish number, such as a bar code, but the present invention is not limited to this. Of course, the present invention can also be applied to detecting the position of a microfilm within a microfiche.

As explained above, the present invention has a function to optically read the code symbol corresponding to the fish number photographed on the microfiche, and also reads the search command signal by the search command and the optically read code symbol. The feature is that the discrimination is made by comparing with the signal.

Therefore, the retrieval device of the present invention can search for microfiche based on a search command and check whether the retrieved microfiche is the desired correct information, so that the correct information can be displayed on the screen of the retrieval device. This has practical effects such as increasing the reliability of the system.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an example of a conventional microfiche, Fig. 2 is a block diagram showing a control circuit section in a conventional search device, and Fig. 3 is an example of a microfiche used in an embodiment of the present invention. FIG. 4 is an explanatory diagram of a code reading section that reads the code symbol photographed on the microfiche of FIG. 3, and FIG. 5 is a block diagram of a control circuit section in a search device showing an embodiment of the present invention. It is a diagram. 5...Court frame, 33-...Code word iJ-31...
・Microfiche, 4...Code part, 34...
Code reading section, 49... Verification circuit.

Claims (1)

[Scope of Claim for Utility Model Registration] A large number of microfiche sheets having a coat frame at one end s and on which code symbols corresponding to fish numbers are photographed are stored in a file and run. A desired microfiche is searched for and taken out by a code search mechanism disposed at a position corresponding to the code portion formed on the coat frame,
A code reading unit optically reads a code symbol corresponding to the fish number, and a search command signal for searching and retrieving by the code search mechanism is compared with a code symbol reading signal read by the code reading unit. The present invention is characterized in that it comprises a collation circuit that performs discrimination, and an output section that outputs a determination output of the collation circuit, and outputs whether or not the search command signal and the code reading signal match. Search device.