JP2021100154A - Input device and program - Google Patents

Abstract

To provide an input device and a program capable of shortening a time from the operation of any of a plurality of predetermined operation keys to the start of a predetermined process.SOLUTION: An input device 1 that can detect which of a plurality of operation keys has been operated by scanning a key matrix circuit 151 to which a plurality of operation keys 15A and 15B are connected for each line S1A to S1F includes storage means 14 in which scan control information including position information indicating a scan start position with respect to a switching direction of columns S21 to S25 in the key matrix circuit is registered, scan control means 11 that identifies the operated key operated by starting scanning the key matrix circuit on the basis of the scan control information, which is triggered by a temporary signal output from the key matrix circuit when any of the plurality of operation keys is operated, and information updating means 11 that updates the position information on the basis of a specific history of the operation keys by the scan control means 11.SELECTED DRAWING: Figure 3

Description

The present invention relates to input devices and programs.

For example, an input device such as a handy terminal is used to manage the entry and exit of products to stores such as supermarkets and mass merchandisers, and warehouses that store products, and to inspect the stored products. (See, for example, Patent Documents 1 and 2).
Then, when managing or inspecting the goods or the like, for example, the bar code reading of the goods or the like that has been received or the goods that have been delivered may be read by the bar code scanner of the input device.

JP-A-2018-32032 JP-A-2017-167634 Japanese Unexamined Patent Publication No. 10-24416 Japanese Unexamined Patent Publication No. 2019-36297 JP-A-2007-34897

By the way, when reading a barcode of a product or the like with the barcode scanner of the input device as described above, when the user operates the barcode scanner of the input device by pressing, for example, a trigger key as an operation key of the input device, the power supply of the barcode scanner of the input device is supplied. There is an input device configured to be able to read a barcode with a barcode scanner by turning on or transitioning from a sleep state to an active state.
Further, the input device may be provided with a plurality of such trigger keys.

Then, when performing warehousing / delivery management, inspection processing, etc. of the above-mentioned products using such an input device, from the time when the user operates any of the trigger keys until the barcode reading by the barcode scanner is started. The longer it takes, the longer it takes to manage the receipt and delivery of the above-mentioned products and the inspection process.

In particular, in large-scale supermarkets, mass merchandisers, warehouses, etc., the number of products entering and leaving the warehouse and the number of units may become extremely large. If it takes a long time to read, as a result, the time required for warehousing / delivery management and inspection processing for the entire product or the like becomes long, and the work efficiency decreases.
Therefore, in an input device such as a handy terminal provided with a barcode scanner, it is desirable that the time from the operation of any of the trigger keys to the start of barcode reading by the barcode scanner is shortened as much as possible.

Further, this problem also applies to an input device such as a keyboard (see, for example, Patent Documents 3 and 4) and a game controller (see, for example, Patent Document 5), and the user can use a predetermined operation key such as a keyboard, that is, for example, the SHIFT key or CTRL. When repeating the operation of operating any of the keys, the ALT key, etc. to perform the predetermined processing, if it takes time from the operation of these operation keys to the start of the predetermined processing, as a result, all of them are performed. The time required to perform the predetermined processing of is long.
Therefore, also in this case, it is desirable that the time from the operation of any of the predetermined operation keys such as the keyboard to the start of the predetermined process is shortened as much as possible.

The present invention has been made in view of the above points, and aims to shorten the time from the operation of any one of a plurality of predetermined operation keys (trigger keys, etc.) to the start of a predetermined process. It is an object of the present invention to provide an input device and a program capable of the above.

In order to solve the above problems, the input device of the present invention
An input device capable of detecting which of the plurality of operation keys has been operated by scanning a key matrix circuit to which a plurality of operation keys are connected line by line.
A storage means in which scan control information including position information indicating a scan start position with respect to a column switching direction in the key matrix circuit is registered, and a storage means.
An operation operated by starting a scan on the key matrix circuit based on the scan control information, triggered by a temporary signal output from the key matrix circuit when any of the plurality of operation keys is operated. Scan control means to identify the key and
An information updating means for updating the position information based on a specific history of operation keys by the scanning control means, and
To be equipped.

According to the present invention, it is possible to shorten the time from the operation of any one of a plurality of predetermined operation keys to the start of a predetermined process in the input device.

(A) is a front view of the handy terminal according to the present embodiment, and (b) is a side view. It is a block diagram which shows the main functional composition of a handy terminal. (A) It is a figure which shows the structural example of the key matrix circuit, and (b) is the figure which shows the example of correspondence of each key switch and each key. It is a timing chart which shows that a predetermined voltage is sequentially applied to the signal line of each column at the time of scanning. When a predetermined voltage is applied as shown in FIG. 4, it is shown that (a) the detection timing is advanced when the trigger key Trg1 is on, and (b) the detection timing is delayed when the trigger key Trg5 is on. It is a timing chart. It is a timing chart which shows that the timing of detection becomes earlier even when the trigger key Trg5 is turned on by changing the order of applying a predetermined voltage to the signal line of each column. It is a timing chart which shows that the order of applying a predetermined voltage to the signal line of each column is changed according to the order of the operation frequency for each trigger key. It is a flowchart which shows the control procedure by the CPU of the handy terminal which concerns on 1st Embodiment. (A) It is a figure which shows the timing of starting a bar code scanner and reading a bar code in the 1st embodiment, and (b) shows the timing of starting a bar code scanner and reading a bar code in the 2nd embodiment. It is a figure. It is a flowchart which shows the control procedure by the CPU of the handy terminal which concerns on 2nd Embodiment.

Hereinafter, the first and second embodiments according to the present invention will be described with reference to the accompanying drawings.
In the following embodiment, a case where the user uses a handy terminal as an input device and performs a process of reading a bar code of a product or the like with a bar code scanner of the handy terminal will be described. However, the input device uses a key matrix circuit. An input device of another form such as a keyboard or a game controller may be used as long as it performs a holding scan (also referred to as a key matrix scan or the like). Further, the predetermined process performed by operating the predetermined operation key such as the trigger key may be a process other than reading the barcode.

[First Embodiment]
First, the apparatus configuration of the first embodiment will be described with reference to FIGS. 1 (a) and 1 (b). FIG. 1A is a front view of the handy terminal according to the present embodiment, and FIG. 1B is a side view.

As shown in FIGS. 1A and 1B, the handy terminal 1 (input device) includes a key input unit 15 for receiving input of various information by a user, a display unit 16 for displaying various information, and a product or the like. A bar code scanner 18 for reading a bar code is provided.
The operation keys of the key input unit 15 include cursor keys arranged on the front of the device, input keys for numbers and characters, function keys 15A such as function keys, and bars provided on the front, side, and back of the device. Includes trigger key 15B for code reading.

The display unit 16 is composed of an LCD (Liquid Crystal Display), an EL (Electro Luminescence) display, etc. arranged in front of the device. In the present embodiment, the touch panel is arranged so as to be superimposed on the screen of the display unit 16, and the user can input by touching the touch panel.

The bar code scanner 18 is arranged on the back surface of the device and reads a bar code of a product or the like. The barcode scanner 18 may use a laser scanner that scans the laser beam to read the barcode, or may use an imaging device that optically captures the barcode and reads the barcode as the barcode scanner 18. It is not limited to a specific form.

Next, the main functional configuration of the handy terminal 1 will be described. FIG. 2 is a block diagram showing a main functional configuration of the handy terminal.
The handy terminal 1 includes a CPU 11, a RAM 12, a ROM 13, a storage unit 14, a key input unit 15, a display unit 16, a wireless communication unit 17, a bar code scanner 18, a bus 19, and the like. Each part of the handy terminal 1 is connected via a bus 19.

The CPU 11 is a processor that controls each unit of the handy terminal 1 by performing various processes according to the program 141 stored in the storage unit 14. The CPU 11 functions as a scan control means, an information update means, a storage control means, and a device control means by executing the program 141 and performing various processes.
It is also possible to provide a key controller unit separately from the CPU 11 so that the key controller unit functions as a scan control means under the control of the CPU 11.

The RAM 12 provides the CPU 11 with a working memory space and stores temporary data. The RAM 12 may include a non-volatile memory.

The ROM 13 is a non-volatile storage unit capable of reading information, and stores various setting data and the like.

The storage unit 14 includes a storage device such as an HDD (Hard Disk Drive), an SSD (Solid State Drive), and a flash memory that can write and read data, and stores the program 141 and various data as a storage means. Function.

The key input unit 15 is provided with various operation keys including a cursor key, input keys for numbers and characters, function keys 15A such as function keys, and a trigger key 15B for reading a barcode. Further, the key input unit 15 has a key matrix circuit 151. Scanning and the like for the key matrix circuit 151 will be described later.
Further, the key input unit 15 is adapted to accept an input operation from the user on the touch panel arranged so as to be superimposed on the screen of the display unit 16.

The display unit 16 is composed of a liquid crystal display, an organic EL display, or the like, and displays the results and status of various processes of the handy terminal 1.

The wireless communication unit 17 is a communication module having an antenna, a modulation / demodulation circuit, a signal processing circuit, and the like, and performs communication control corresponding to a communication standard related to wireless communication by a wireless LAN (Local Area Network).

The bar code scanner 18 reads the bar code of a product or the like generated according to a predetermined rule, decodes the obtained signal, and outputs the signal to the CPU 11. At least a part of the signal decoding process may be performed by the CPU 11.
Further, in the present embodiment, when the user operates the bar code scanner 18 by pressing any of the plurality of trigger keys 15B (see FIGS. 1A and 1B), the bar code scanner 18 reads the bar code. It is designed to start operation.

Although not shown, the handy terminal 1 is provided with a power supply unit such as a battery, and also has a short-range communication unit such as NFC (Near Field Communication) and a wireless communication unit such as a wireless WAN (Wide Area Network). , USB (Universal Serial Bus) or the like may be provided.

Next, the configuration of the key matrix circuit 151 and the like in the key input unit 15 and the scanning of the key matrix circuit 151 will be described. FIG. 3A is a diagram showing a configuration example of a key matrix, and FIG. 3B is a diagram showing an example of correspondence between each key switch and each operation key.
Note that FIGS. 1 (a) and 1 (b) show the case where the handy terminal 1 is provided with four trigger keys 15B, but in the following, as shown in FIGS. 3 (a) and 3 (b), It will be described assuming that five trigger keys (Trg1 to Trg5) are provided. Further, when the trigger keys Trg1 to Trg5 are generally referred to, they are referred to as trigger keys Trg.

The key matrix circuit 151 has a predetermined number of signal lines S1 (S1A to S1F) and a predetermined number of rows (6 columns in FIGS. 3A and 3B) of a plurality of operation keys including a plurality of trigger keys Trg1 to Trg5. (5 rows in FIGS. 3A and 3B) are connected to the signal lines S2 (S21 to S25), respectively, and arranged in a matrix.

Specifically, in the key matrix circuit 151, the signal lines S1 in the row and the signal lines S2 in the column are connected to each intersection of the signal lines S1A to S1F in each row and the signal lines S21 to S25 in each column. Each key switch ksw of the normally open contact type is arranged. Each key switch ksw corresponds to each operation key as shown in FIG. 3 (b). Further, in the present embodiment, five trigger keys Trg1 to Trg5 are connected to the signal line S1A in one line.

A key sampling voltage Vks is applied to each of the signal lines S1A to S1F of each line via an electric resistance.
Further, the signal lines S1A to S1F of each row and the signal lines S21 to S25 of each column are connected to the corresponding terminals of the CPU 11, respectively.

The CPU 11 as a scan control means sequentially applies a predetermined voltage V to each of the signal lines S21 to S25 of each row of the key matrix circuit 151 to perform scanning, and is in an on or off state of each operation key (that is, a plurality of operation keys). Which of the above was operated) is detected in sequence.

Specifically, in a state in which none of the operation keys is operated (a state in which all the operation keys are off), the key sampling voltage Vks is input to the CPU 11 from the signal lines S1A to S1F of each line. Further, a predetermined voltage Va is applied from the CPU 11 to the signal lines S21 to S25 in each row. The predetermined voltage Va in this case may be the same voltage value as the predetermined voltage V sequentially applied to the signal lines S21 to S25 of each row at the time of scanning, and is a voltage value different from the predetermined voltage V. You may.

Then, when any of the operation keys is operated by the user, the signal line S1 in the row and the signal line S2 in the column are conducted on the key matrix circuit 151 via the key switch ksw corresponding to the operation key. Therefore, the voltage of the signal line S1 in the row changes from the key sampling voltage Vks to a predetermined voltage Va applied to the signal line S2 in the column.
In this way, the CPU 11 detects that the voltage input from the signal line S1 in any line has changed from the key sampling voltage Vks to a predetermined voltage Va, and indicates that any of the operation keys has been operated. To detect. That is, by scanning the key matrix circuit to which a plurality of operation keys are connected line by line, it is detected that any of the plurality of operation keys has been operated.

As described above, the signal indicating that the voltage input from the signal line S1 in any line has changed from the key sampling voltage Vks to a predetermined voltage Va is hereinafter referred to as a temporary signal.
Further, when a temporary signal is detected, it is detected that any operation key corresponding to each key switch ksw connected to the signal line S1 of a certain line has been operated, but which operation key has been operated. Is unknown at the time of detection of the false signal.
Therefore, when the CPU 11 detects the temporary signal as described above, the CPU 11 starts scanning with the temporary signal as an opportunity to detect which operation key is operated (that is, which operation key is in the ON state). It has become.

When scanning, as shown in FIG. 4, the CPU 11 temporarily stops applying the predetermined voltage Va to the signal lines S21 to S25 in each row, and then applies the predetermined voltage V to the signal lines S21 to S25 in each row. Sequentially apply and scan.

Then, if the key sampling voltage Vks input from the signal line S1m when the predetermined voltage V is applied to the signal line S2n in the nth column is output with the key sampling voltage Vks fluctuating to the predetermined voltage V, the CPU 11 is in the mth line. The operation key corresponding to the key switch ksw in the nth column is detected to be on, and the operation keys corresponding to the other key switches ksw connected to the signal line S2n in the nth column are in the off state. Detects that there is.
The CPU 11 sequentially detects the on or off state of each operation key by sequentially performing such a detection process every time a predetermined voltage V is sequentially applied to the signal lines S21 to S25 of each row. ..

In the present embodiment, the CPU 11 sequentially detects that each operation key is in the on state or in the off state as described above, and the trigger key Trg is in the on state. Is detected, the bar code scanner 18 (predetermined device) is made to read the bar code (predetermined process).

That is, in the present embodiment, when the CPU 11 detects that the trigger key Trg is in the ON state, the barcode scanner 18 is activated to start reading the barcode, or the barcode scanner 18 is activated. Start reading the barcode with.
Since the structure of the barcode scanner 18 and the barcode reading by the barcode scanner 18 are known, the description thereof will be omitted.

Next, scan control information including position information indicating a scan start position with respect to the key matrix circuit is registered in the storage unit 14 as the storage means. In this scan control information, position information indicating the scan start position with respect to the column switching direction and position information indicating the scan start position with respect to the row switching direction are registered as scan control information.
Hereinafter, scan control information as position information indicating the scan start position with respect to the column switching direction will be specifically described.

When it is detected by the above scan that any of the trigger keys Trg1 to Trg5 is in the ON state, the CPU 11 scans information such as identification information of the trigger key Trg detected to be in the ON state. The control information is registered in the storage unit 14 as position information indicating the scan start position with respect to the switching direction of the column.
With this configuration, the CPU 11 can recognize which of the trigger keys Trg1 to Trg5 has been operated by the user, and the CPU 11 as a scan control means described later reads out the scan control information to position the position. It is possible to start scanning the key matrix circuit based on the information.

Then, the CPU 11 as the scan control means described above starts scanning with a temporary signal output from the key matrix circuit 151 when any of the plurality of operation keys is operated. At that time, the scan is started. By starting a scan on the key matrix circuit based on the control information, the operation key operated by the user is specified.
Further, the CPU 11 as the information updating means updates the above-mentioned position information based on the specific history of the operation keys by the scan control means (CPU 11).
Hereinafter, a specific description will be given.

As described above, in the handy terminal 1 of the present embodiment, when any of the trigger keys Trg1 to Trg5 is operated by the user, the bar code scanner 18 of the handy terminal 1 starts the bar code reading operation.

At that time, if the order of applying the predetermined voltage V to the signal lines S21 to S25 of each row during scanning is fixed in the order of, for example, signal line S21, signal line S22, ..., Signal line S25, for example, the user When the trigger key Trg1 is operated to read the bar code, as shown in FIG. 5A, the trigger key Trg1 is on when the CPU 11 applies a predetermined voltage V to the signal line S21. Detecting that, the bar code scanner 18 is activated.
In this way, when the user operates the trigger key Trg1, when the user operates the trigger key Trg1, the barcode scanner 18 starts reading the barcode in a short time.

However, for example, when the user operates the trigger key Trg5 (for example, the trigger key 15B provided on the back surface of the device in FIG. 1B), the CPU 11 has the signal line S21, as shown in FIG. 5B. A predetermined voltage V is sequentially applied in the order of the signal lines S22, ..., And it is detected that the trigger key Trg5 is in the ON state for the first time when the predetermined voltage V is applied to the signal line S25.
Therefore, the CPU 11 cannot detect that any of the trigger keys Trg is in the ON state at the time when the predetermined voltage V is sequentially applied to the signal lines S21 to S24, so that the bar is displayed after the user operates the trigger key Trg5. It takes a so-called wasted time until the bar code reading by the code scanner 18 is started while the predetermined voltage V is sequentially applied to the signal lines S21 to S24. In the meantime, the user has to wait for the barcode to start reading.

Even if this delay time is not so long in one barcode reading, as mentioned above, the number of products and the number of products that enter and leave large supermarkets, mass retailers, warehouses, etc. are very large. In that case, the delay time is accumulated every time the barcode is read for each product or the like. Therefore, it takes a long time to manage the receipt / delivery of the entire product and the inspection process, and the work efficiency is lowered.

Therefore, in the present embodiment, when the CPU 11 as the scan control means starts the scan triggered by the temporary signal as described above, the CPU 11 reads the scan control information from the storage unit 14 as the storage means and includes the scan control information in the scan control information. The operated operation key is identified by initiating a scan on the key matrix circuit 151 based on the position information.
Further, the position information is updated by the CPU 11 as the information updating means based on the specific history of the operation keys specified by the scan control means (CPU 11) (that is, the history of the operation keys and the like specified by the scan control means) (information update). Function as a means).

In this way, the position information is updated based on the history of the operation keys specified by the scan on the key matrix circuit 151, and the key matrix circuit is updated based on the updated position information (scan control information) at the next scan. Start scanning for 151. Therefore, in the next scan, it is possible to start applying the predetermined voltage V from the signal line in the row corresponding to the trigger key Trg, which is likely to be operated by the user. Therefore, after the trigger key Trg is operated. There is a high possibility that the time until the bar code reading by the bar code scanner 1 is started will be shortened.
In the present embodiment, in this way, it is possible to shorten the time from the operation of any of the plurality of trigger keys Trg1 to Trg5 until the start of a predetermined process (bar code reading in this case). ing.

In this case, the specific history of the operation key can be, for example, the following history.

(A) The history of the above specific history, for example, the identification number related to the trigger key Trg last specified by the scan control means (CPU11) (that is, the trigger key Trg specified at the time of the previous (immediately before) scan). It is possible to
Then, in this case, each time the trigger key Trg is operated, the CPU 11 overwrites and saves the operation identification number and the like of the trigger key Trg as a specific history.

It is considered that the user is likely to repeatedly operate the same trigger key Trg when reading the barcode continuously. Therefore, by setting the specific history as the history such as the identification number related to the trigger key Trg last specified by the scan control means (CPU 11), the trigger operated by the user when the CPU 11 as the scan control means scans. The key Trg is more likely to be detected at the time of application of the first predetermined voltage V in the scan.
Therefore, it is possible to increase the possibility that the time from the operation of the trigger key Trg to the start of reading the barcode by the barcode scanner 1 is shortened.

Specifically, when the trigger key Trg last specified by the CPU 11 as the scan control means is, for example, the trigger key Trg 5, the CPU 11 uses the position information (scan control information) updated by the information updating means (CPU 11). Based on this, as shown in FIG. 6, the order of applying the predetermined voltage V to the signal lines S21 to S25 of each row in the scan corresponds to the trigger key Trg5 (that is, the trigger key Trg5 last specified by the scan control means). The application of a predetermined voltage V is started from the signal line S25 in the row to be started, and the scan for the key matrix circuit 151 is started.
With this configuration, it is highly likely that the user will operate the trigger key Trg5 that was last operated again. Therefore, the barcode scanner 1 starts reading the barcode after the user operates the trigger key Trg. It is possible to increase the possibility that the time required for the process will be shortened.

(B) Further, the above-mentioned specific history can be, for example, a history related to the trigger key Trg having the highest frequency of operation.
In this case, the CPU 11 records the frequency of operations for each trigger key Trg as a history, for example, by counting the number of times the trigger key Trg is operated for each trigger key Trg from the time when the power of the handy terminal 1 is turned on. Remember.

When the user continuously reads the barcode, the same trigger key Trg tends to be used repeatedly due to the user's habit and ease of use, so that the operation frequency of the plurality of trigger keys Trg1 to Trg5 differs, and the operation is performed. It is considered that the frequently used trigger key Trg is operated more frequently. Therefore, by setting the specific history as the history related to the trigger key Trg that has been operated most frequently, when the CPU 11 as the scan control means scans, the trigger key Trg operated by the user is used as the first predetermined value in the scan. It is more likely to be detected when the voltage V is applied.
Therefore, it is possible to increase the possibility that the time from the operation of the trigger key Trg to the start of reading the barcode by the barcode scanner 1 is shortened.

Specifically, when the trigger key Trg that has been operated most frequently is, for example, the trigger key Trg5, the CPU 11 performs the scan based on the position information (scan control information) updated by the information updating means (CPU11). The order of applying the predetermined voltage V to the signal lines S21 to S25 in each row is changed by starting the application of the predetermined voltage V from the signal line S25 in the row corresponding to the trigger key Trg5 having the highest frequency of operation, and the key matrix circuit 151. Start scanning for (see Figure 6).
With this configuration, it is highly likely that the user will operate the trigger key Trg5, which is the most frequently operated trigger key. Therefore, the barcode scanner 1 can read the barcode after the user operates the trigger key Trg. It is possible to increase the possibility that the time to start will be shortened.

(C) Further, in the case of (B) above, since the operation frequency for each trigger key Trg is stored in the memory, the signal line S21 of each row corresponding to the trigger keys Trg1 to Trg5 is used by using the memory. It is also possible to change the order of applying the predetermined voltage V to ~ S25 so as to correspond to the order of the operation frequency of each trigger key Trg.
That is, when the order of the operation frequency for each trigger key Trg stored in the memory is, for example, the trigger keys Trg5, Trg3, Trg4, Trg1, and Trg2, they correspond to them as shown in FIG. It is also possible to determine the order of application so that the predetermined voltage V is applied in the order of the signal lines S25, S23, S24, S21, S22 of each row. In this case, if the operation frequencies of the plurality of trigger keys Trg are the same, rules such as applying a predetermined voltage V in ascending order of numbers are set in advance.

With this configuration, even if the user operates a trigger key Trg other than the trigger key with the highest operation frequency, the user operates the trigger key Trg with less experience (that is, the trigger key Trg with less operation frequency). Since it is highly likely that the experienced trigger key Trg (that is, the frequently operated trigger key Trg) will be operated, the operated trigger key Trg is applied at an earlier stage of the application of the first predetermined voltage V in the scan. It is more likely to be detected.
Therefore, it is possible to further increase the possibility that the time from the operation of the trigger key Trg to the start of reading the barcode by the barcode scanner 1 is shortened.

(D) In the above (A) to (C), the trigger key Trg frequently operated by the user may differ for each user depending on the user's habit, ease of use, and the like.
Therefore, it is possible to collect the above information for each user and configure it as information for each user. It is also possible to configure the distribution of the operation frequency for each trigger key Trg (in the case of (C)) to be stored for each user.

In this case, the CPU 11 is configured to acquire the above-mentioned information corresponding to the user based on the user's own identification number or the like registered by the user at the start of use of the handy terminal 1, for example.
With this configuration, the order in which the predetermined voltage V is applied to the signal lines S2 in each row during scanning can be determined for each user according to the user's habits and the like, and the trigger key Trg is operated. It is possible to further increase the possibility that the time from the start of reading the barcode by the barcode scanner 1 will be shortened.

(E) Further, in each of the above cases, the above specific history can be configured to be saved in the memory by the handy terminal 1 itself, but for example, the specific history should be saved in the management server or the like. It is also possible to configure in.
In this case, the CPU 11 is configured to acquire a specific history from the memory of the handy terminal 1, the management server, or the like when the handy terminal 1 is started.

(F) It should be noted that the above position information is configured so that the user can set it in advance (that is, the user can set it in advance, such as by configuring the trigger key Trg to be used by the user in advance. It is also possible to configure the scan to start from the signal line S2 in the row to which the designated trigger key Trg is connected).
For example, at the start of use of the handy terminal 1, a list of a plurality of trigger keys Trg1 to Trg5 of the handy terminal 1 is displayed on the display unit 16 (see FIG. 1A) to inform the user of the trigger key Trg to be used. It can be configured to be specified and set. In this case, the CPU 11 stores information such as the identification number of the trigger key Trg specified by the user.

In this case, it is considered that the user is likely to use the trigger key Trg specified by himself / herself. Therefore, when the CPU 11 starts scanning, if scanning is started from the signal line S2 in the row to which the trigger key Trg specified by the user is connected, the trigger key Trg operated by the user is subjected to the first predetermined voltage in scanning. It is more likely to be detected when V is applied.
Therefore, it is possible to increase the possibility that the time from the operation of the trigger key Trg to the start of reading the barcode by the barcode scanner 1 is shortened.

Specifically, when the user specifies, for example, the trigger key Trg5, the CPU 11 triggers the application of a predetermined voltage V to the signal lines S21 to S25 of each row in the scan as shown in FIG. The application of the predetermined voltage V is started from the signal line S25 in the row corresponding to the key Trg5.
With this configuration, it is considered that the user is likely to operate the trigger key Trg5 specified by himself / herself. Therefore, the barcode scanner 1 starts reading the barcode after the user operates the trigger key Trg. It is possible to increase the possibility that the time required for the process will be shortened.

(G) Further, the above (A) to (D) and (F) may be combined.
By combining the above (A) to (D) and (F), it is possible to configure as follows.

(G-1) For example, at the time of the first scan, the column corresponding to the last operated trigger key Trg (that is, the trigger key Trg operated at the time of the last barcode reading such as the previous day or the previous time). The application of the predetermined voltage V is started from the signal line S2 of the above to perform scanning (see (A) above), and the number of operations for each trigger key Trg is started to be counted.
Then, in the second and subsequent scans, the application of the predetermined voltage V is started from the signal line S2 in the row corresponding to the trigger key Trg having the highest frequency of operation based on the operation frequency of each trigger key Trg. It can be configured to perform a scan (see (D) above).

Therefore, in this case, the CPU 11 as the information updating means scans based on the specific history as the history related to the trigger key Trg finally specified by the scan control means at the time of the first scan by the scan control means (CPU 11). The position information indicating the start position is updated, and the position information is updated based on the specific history as the history related to the trigger key Trg that has been operated most frequently in the second and subsequent scans by the scan control means. It is composed.
In the second and subsequent scans, the order in which the predetermined voltage V is applied to the signal lines S2 in each row during the scan is appropriately changed according to the operation frequency of each trigger key Trg (see (C) above). It is also possible to configure it as follows.

(G-2) Further, for example, at the time of the first scan, the scan is performed by starting the application of a predetermined voltage V from the signal line S2 in the row corresponding to the trigger key Trg that is most frequently operated (the above). (See (B)).
Then, at the time of the second and subsequent scans, the signal line S2 of the row corresponding to the last operated trigger key Trg (that is, the trigger key Trg operated at the time of reading the immediately preceding barcode) to the predetermined voltage V It is also possible to configure the system so that the application is started and the scan is performed (see (A) above).

Therefore, in this case, the CPU 11 as the information updating means has a scan start position based on a specific history as a history related to the trigger key Trg that has been operated most frequently at the time of the first scan by the scan control means (CPU 11). In the second and subsequent scans by the scan control means, the position information indicating the above is updated, and the position information is updated based on the specific history as the history related to the trigger key Trg last specified by the scan control means. It is composed.
Also in this case, the order in which the predetermined voltage V is applied to the signal line S2 in each row at the time of scanning is appropriately changed according to the operation frequency of each trigger key Trg at the time of the first bar code reading (the above ((the above). It is also possible to configure as described in C).

(G-3) Further, for example, at the time of the first scan, the application of the predetermined voltage V is started from the signal line S2 in the row corresponding to the trigger key Trg specified by the user to perform the scan (the above (F)). ), And start counting the number of operations for each trigger key Trg.
Then, in the second and subsequent scans, the application of the predetermined voltage V is started from the signal line S2 in the row corresponding to the trigger key Trg having the highest frequency of operation based on the operation frequency of each trigger key Trg. It is also possible to change the order in which the predetermined voltage V is applied so as to perform scanning (see (B) above).

Therefore, in this case, the CPU 11 as the information updating means updates the position information corresponding to the operation key designated by the user as the position information indicating the scan start position at the time of the first scan by the scan control means (CPU 11). However, in the second and subsequent scans by the scan control means, the position information is updated based on the specific history as the history of the trigger key Trg having the highest frequency of operation.
In this case as well, in the second and subsequent scans, the order in which the predetermined voltage V is applied to the signal lines S2 in each row during the scan is appropriately changed according to the operation frequency of each trigger key Trg (determined). It is also possible to configure as described in (C) above).

(G-4) Further, for example, at the time of the first scan, the application of the predetermined voltage V is started from the signal line S2 in the row corresponding to the trigger key Trg specified by the user to perform the scan (the above (F)). )reference).
Then, at the time of the second and subsequent scans, the signal line S2 of the row corresponding to the last operated trigger key Trg (that is, the trigger key Trg operated at the time of reading the immediately preceding barcode) to the predetermined voltage V It is also possible to change the order in which the predetermined voltage V is applied so as to start the application and perform the scan (see (A) above).

Therefore, in this case, the CPU 11 as the information updating means updates the position information corresponding to the operation key designated by the user as the position information indicating the scan start position at the time of the first scan by the scan control means (CPU 11). Then, at the time of the second and subsequent scans by the scan control means, the position information is updated based on the specific history as the history regarding the trigger key Trg finally specified by the scan control means.

Next, the control procedure of each process executed in the handy terminal 1 according to the present embodiment will be described. Here, when the user presses the trigger key Trg to read the barcode, each process of (G-1) above will be described as an example.
FIG. 8 is a flowchart showing a control procedure by the CPU of the handy terminal according to the present embodiment.

When the power of the handy terminal 1 is turned on, the CPU 11 reads from the memory or transmits it from the management server or the like, and causes a specific history, that is, the last operated trigger key Trg (that is, the last such as the previous day). Acquire the history such as the identification number of the trigger key Trg) operated when reading the barcode (step S101).
Then, the CPU 11 updates the position information indicating the scan start position with respect to the key matrix circuit 151 based on the acquired specific history (step S102, a function as an information updating means).

Subsequently, the CPU 11 applies a predetermined voltage Va to the signal lines S21 to S25 of each row on the key matrix circuit 151, and waits until it detects a temporary signal indicating that any of the operation keys has been operated ( “NO” in step S103). Then, when the temporary signal is detected (“YES” in step S103), the application of the predetermined voltage Va to the signal lines S21 to S25 of each row is temporarily stopped, and then based on the scan control information including the above position information. The operation key operated by starting the scan on the key matrix circuit 151 is specified (step S104, a function as a scan control means).

Then, the CPU 11 sequentially detects the on or off state of each operation key each time a predetermined voltage V is sequentially applied to the signal line S2 of each row by scanning, and is operated by the operation key in the on state, that is, the user. If the operation key is not the trigger key Trg (“NO” in step S105), the process is returned to step S103 after the scan is performed to the end.

When the operated operation key (specified operation key) is not the trigger key Trg, the CPU 11 returns the process to step S103 for the control for reading the barcode (predetermined process). At the same time, it goes without saying that the processing corresponding to the operated operation key is performed.
Further, in the case of "when the operated operation key is not the trigger key Trg", the operated operation key is an operation key other than the trigger key Trg, and the operated operation key is the trigger key Trg. This includes cases where the trigger key Trg is set to be invalid, and cases where the trigger key Trg is customized as an operation key for other purposes instead of the trigger key Trg for reading a barcode.

On the other hand, when the operation key in the ON state, that is, the operation key operated by the user is the trigger key Trg (“YES” in step S105), the CPU 11 activates the barcode scanner 18 to cause the barcode scanner 18 to operate. The barcode is read (step S106). The barcode scanner 18 may be activated in advance by a user operation.

Further, as described above, the CPU 11 activates the barcode scanner 18 to read the barcode (step S106), and the ID number of the operated trigger key Trg (identified trigger key Trg) or the like is used. Information is stored in the storage unit 14 (memory control means). Further, the CPU 11 stores the identification of the trigger key Trg in the storage unit 14 as a specific history (step S107), and counts the number of operations (that is, the operation frequency) for each trigger key Trg as the specific history in the storage unit. Store in 14 (step S108).
Subsequently, the CPU 11 performs necessary processing such as inspection of the product or the like whose barcode is read and transmission of data to the management server or the like according to the operation of the user (step S109).

Then, if there is no instruction from the user to end the process (“NO” in step S110), the CPU 11 returns the process to step S101 and acquires a specific history (step S101), and the acquired specific history, in this case, From the second time onward, the application of the predetermined voltage V is started from the signal line S2 of the column corresponding to the trigger key Trg having the highest frequency of operation based on the operation frequency for each trigger key Trg stored in the storage unit 14. The position information indicating the scan start position is updated in (step S102. Function as information updating means).
Then, the CPU 11 repeats each of the above processes, and ends the barcode reading process when the user gives an instruction to end the process (“YES” in step S110).

As described above, according to the handy terminal 1 (input device) and the program according to the first embodiment, a plurality of key matrix circuits 151 to which a plurality of operation keys are connected are scanned for each row S1A to S1F. In the input device 1 capable of detecting which of the operation keys has been operated, the storage means 14 in which the scan control information including the position information indicating the scan start position with respect to the switching direction of the columns S21 to S25 in the key matrix circuit 151 is registered is registered. The CPU 11 operates by starting scanning for the key matrix circuit 151 based on the scan control information, triggered by a temporary signal output from the key matrix circuit 151 when any of the plurality of operation keys is operated. The operation key is specified (scan control means), and the position information is updated based on the identification history of the operation key by the scan control means (information update means).

Therefore, by updating the position information based on the above specific history, the application of the predetermined voltage V is started from the signal line S2 in the row corresponding to the trigger key Trg, which is likely to be operated by the user. , The timing at which it is detected that the operation key operated by scanning is the trigger key Trg becomes earlier. Therefore, there is a high possibility that the time from the operation of any one of the plurality of trigger keys Trg1 to Trg5 by the user to the start of a predetermined process such as reading a barcode is shortened.
In the present embodiment, in this way, it is possible to shorten the time from the operation of any one of the plurality of trigger keys Trg1 to Trg5 until the start of a predetermined process (for example, barcode reading). It becomes.

Further, the program of the present embodiment can detect which of the plurality of operation keys has been operated by scanning the key matrix circuit 151 to which the plurality of operation keys are connected for each row S1A to S1F, and the key matrix circuit. One of the plurality of operation keys presses the CPU 11 which is the computer of the input device 1 including the storage means 14 in which the scan control information including the position information indicating the scan start position indicating the scan start position with respect to the switching direction of the columns S21 to S25 in 151 is registered. A scan control means for identifying the operated key by starting a scan for the key matrix circuit 151 based on the scan control information, triggered by a temporary signal output from the key matrix circuit 151 when the key matrix circuit 151 is operated, and a scan. It functions as an information updating means for updating the position information based on the specific history of the operation key by the control means.
By operating the CPU 11 of the handy terminal 1 by such a program, the time from when any one of the plurality of trigger keys Trg1 to Trg5 is operated until a predetermined process (for example, reading a barcode) is started. It is possible to shorten the time.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. In the present embodiment, the configuration of the handy terminal 1 (input device) is the same as that of the first embodiment, and the same reference numerals as those of the first embodiment will be used for description.

In the first embodiment, as described above, the CPU 11 operates the operation keys operated by starting the scan on the key matrix circuit 151 based on the scan control information including the position information updated based on the specific history. When it is specified and it is detected that the specified operation key is the trigger key Trg (that is, the trigger key Trg is in the ON state), the bar code scanner 18 is activated and a bar is activated as shown in FIG. 9A. I had the code read.

In the second embodiment, instead of activating the barcode scanner 18 after performing scanning to detect that the trigger key Trg is in the ON state, as shown in FIG. 9B, as shown in FIG. 9B. By starting preprocessing for starting a predetermined function such as activating the barcode scanner 18 when a temporary signal is detected before scanning, barcode reading can be started earlier. There is.
That is, in the present embodiment, as described above, the CPU 11 starts scanning in the row switching direction when the temporary signal is detected, but the operation key operated at the time of detecting the temporary signal starts a predetermined function. When there is a possibility that it is a trigger key for the purpose, preprocessing for starting a predetermined function is started when a temporary signal is detected.

Here, when the operation key operated at the time of detecting the temporary signal may be the trigger key Trg, the voltage input to the CPU 11 from the signal line S1 of the line to which the trigger key Trg is connected is key sampling. It means a case where the voltage Vks changes to a predetermined voltage Va.
For example, when the trigger key Trg is connected to the signal line S1A in one line as shown in FIGS. 3A and 3B, the voltage input from the signal line S1A is key-sampled. Indicates a case where the voltage Vks changes to a predetermined voltage Va. For example, although not shown, when a plurality of trigger key Trgs are connected to the line signal lines S1A, S1B, and S1C, the line signal. It represents the case where the voltage input from any of the lines S1A to S1C changes from the key sampling voltage Vks to a predetermined voltage Va.

In the present embodiment, by configuring the bar code scanner 18 in this way, the bar code scanner 18 is started by moving it forward, so that the bar code reading is started after any one of the plurality of trigger key Trgs is operated. It is designed to shorten the time of.
The activation of the barcode scanner 18 (predetermined device) means turning on the power of the scanner, transitioning from the sleep state to the active state (standby state), or in the case of a laser scanner, starting the operation of shaking the mirror. (The laser does not light up at this point), and in the case of a 2D scanner, the transfer of the image of the camera is started and the exposure control is performed (the auxiliary light does not turn on at this point).

Next, the control procedure of each process when the user presses the trigger key Trg to read the barcode in the handy terminal 1 according to the second embodiment will be described. FIG. 10 is a flowchart showing a control procedure by the CPU of the handy terminal according to the second embodiment.
The flowchart of FIG. 10 corresponds to the addition of steps S111 and S112 after step S103 of the flowchart of FIG. 8 and the addition of step S113 after step S105 in the case of NO determination in step S105. Hereinafter, the differences from the flowchart of FIG. 8 will be described.

In the present embodiment, the CPU 11 operates any operation key by detecting that the voltage input from the signal line S1 in any line has changed from the key sampling voltage Vks to a predetermined voltage Va. When the temporary signal is detected (“YES” in step S103), it is determined whether or not the operation key operated at the time of detecting the temporary signal as described above may be the trigger key Trg (step S111). ), If there is a possibility (“YES” in step S111), the barcode scanner 18 (predetermined device) is activated when the temporary signal is detected (step S112).

If there is no possibility that the operation key operated at the time of detecting the temporary signal is the trigger key Trg (“NO” in step S111), the CPU 11 skips the process of step S112 and shifts the process to step S104. Let me.
The CPU 11 simultaneously performs the determination process in step 111 and the scan start process in step S104.

Further, the CPU 11 determines that the operation key operated at the time of detecting the temporary signal may be the trigger key Trg (“YES” in step S111), and activates the barcode scanner 18 (predetermined device). (Step S112), if it is determined in the determination process of step S105 that the operation key in the ON state, that is, the operation key operated by the user is not the trigger key Trg (“NO” in step S105), the barcode After stopping the activation of the scanner 18 (predetermined device) (step S113), the process returns to step S103.

If the operated operation key is not the trigger key Trg, the CPU 11 returns the process to step S103 for the control for reading the barcode (predetermined process), but at the same time, the operated operation. Needless to say, the processing corresponding to the key is performed.
Further, in the case of "when the operated operation key is not the trigger key Trg", the operated operation key is an operation key other than the trigger key Trg, and the operated operation key is the trigger key Trg. , The case where the trigger key Trg is set to be invalid, or the case where the trigger key Trg for reading a barcode is customized as an operation key for other purposes is also included.

As described above, according to the handy terminal 1 (input device) and the program according to the second embodiment, a plurality of key matrix circuits 151 to which a plurality of operation keys are connected are scanned for each row S1A to S1F. In the input device 1 capable of detecting which of the operation keys has been operated, the storage means 14 in which the scan control information including the position information indicating the scan start position with respect to the switching direction of the columns S21 to S25 in the key matrix circuit 151 is registered is registered. The CPU 11 operates by starting scanning for the key matrix circuit 151 based on the scan control information, triggered by a temporary signal output from the key matrix circuit 151 when any of the plurality of operation keys is operated. The operation key is specified (scan control means), and the position information is updated based on the identification history of the operation key by the scan control means (information update means).
Further, when the operation key operated at the time of detecting the temporary signal may be a trigger key for starting a predetermined function, the CPU 11 is for starting the predetermined function at the time of detecting the temporary signal. Start preprocessing.

As described above, in the present embodiment, when the operation key operated at the time of detecting the temporary signal may be a trigger key for starting the predetermined function, the predetermined function is started at the time of detecting the temporary signal. Since the preprocessing for causing the barcode is started (for example, the barcode scanner 18 (predetermined device) is activated), it is possible to start the barcode reading earlier.

Therefore, there is a high possibility that the time from the operation of any one of the plurality of trigger key Trgs by the user to the start of a predetermined process such as reading a barcode is further shortened.
In the present embodiment, in this way, it is possible to shorten the time from the operation of any one of the plurality of trigger key Trgs to the start of a predetermined process (for example, barcode reading). ..

Further, the program of the present embodiment can detect which of the plurality of operation keys has been operated by scanning the key matrix circuit 151 to which the plurality of operation keys are connected for each row S1A to S1F, and the key matrix circuit. One of the plurality of operation keys presses the CPU 11 which is the computer of the input device 1 including the storage means 14 in which the scan control information including the position information indicating the scan start position indicating the scan start position with respect to the switching direction of the columns S21 to S25 in 151 is registered. A scan control means for identifying the operated key by starting a scan for the key matrix circuit 151 based on the scan control information, triggered by a temporary signal output from the key matrix circuit 151 when the key matrix circuit 151 is operated, and a scan. Information updating means for updating position information based on the specific history of operation keys by the control means, and
When there is a possibility that the operation key operated at the time of detecting the temporary signal is a trigger key for starting the predetermined function, the preprocessing for starting the predetermined function is started when the temporary signal is detected. It functions as a device control means.
By operating the CPU 11 of the handy terminal 1 by such a program, the time from when any one of the plurality of trigger keys Trg1 to Trg5 is operated until a predetermined process (for example, reading a barcode) is started. It is possible to shorten the time.

Although the embodiments of the present invention have been described, the scope of the present invention is not limited to the above-described embodiments, but includes the scope of the invention described in the claims and the equivalent scope thereof.
The inventions described in the claims originally attached to the application of this application are added below. The claims in the appendix are as specified in the claims originally attached to the application for this application.
[Additional Notes]
<Claim 1>
An input device capable of detecting which of the plurality of operation keys has been operated by scanning a key matrix circuit to which a plurality of operation keys are connected line by line.
A storage means in which scan control information including position information indicating a scan start position with respect to a column switching direction in the key matrix circuit is registered, and a storage means.
An operation operated by starting a scan on the key matrix circuit based on the scan control information, triggered by a temporary signal output from the key matrix circuit when any of the plurality of operation keys is operated. Scan control means to identify the key and
An information updating means for updating the position information based on a specific history of operation keys by the scanning control means, and
An input device characterized by being equipped with.
<Claim 2>
The plurality of operation keys include a plurality of trigger keys for initiating a predetermined function.
The plurality of trigger keys are connected to the same row in the key matrix circuit.
The scan control means starts the scan from the row to which the plurality of trigger keys are connected with respect to the row switching direction in the key matrix circuit.
The input device according to claim 1.
<Claim 3>
When the scan control means performs the first scan in the switching direction of the column, the information updating means uses the information about the trigger key last specified by the scan control means as the specific history to provide the position information. Update,
The input device according to claim 1 or 2.
<Claim 4>
The information updating means updates the position information using the information about the trigger key, which is most frequently operated, as the specific history when the scan control means performs the second and subsequent scans in the switching direction of the column. To do
The input device according to any one of claims 1 to 3.
<Claim 5>
The information updating means is
When the scan control means performs the first scan in the switching direction of the column, the position information is updated with the information of the trigger key most frequently operated as the specific history.
When the scan control means performs the second and subsequent scans in the switching direction of the column, the position information is updated with the information about the trigger key last specified by the scan control means as the specific history.
The input device according to claim 1 or 2.
<Claim 6>
The information updating means is
When the scan control means performs the first scan in the switching direction of the column, the position information is updated with the information about the trigger key preset by the user as the specific history.
When the scan control means performs the second and subsequent scans in the switching direction of the column, the position information is updated with the information about the trigger key last specified by the scan control means as the specific history.
The input device according to claim 1 or 2.
<Claim 7>
The information updating means is
When the scan control means performs the first scan in the switching direction of the column, the position information is updated with the information about the trigger key preset by the user as the specific history.
When the scan control means performs the second and subsequent scans in the switching direction of the column, the position information is updated with the information about the trigger key having the highest frequency of operation as the specific history.
The input device according to claim 1 or 2.
<Claim 8>
The claim is characterized in that, when the scan is performed based on the specific history, the scan control means sets the scan order of the key matrix circuit with respect to the switching direction of the column to the order in which the operation frequency is high. The input device according to 1 or 2.
<Claim 9>
The input device according to any one of claims 1 to 8, wherein the trigger key is a trigger key for reading a barcode.
<Claim 10>
The input device according to any one of claims 1 to 9, wherein the specific history is history information for each user.
<Claim 11>
When the operation key operated at the time of detecting the temporary signal may be a trigger key for starting a predetermined function, before starting the predetermined function at the time when the temporary signal is detected. The input device according to any one of claims 1 to 10, wherein the processing is started.
<Claim 12>
When it is detected by the scan by the scan control means that the trigger key for starting a predetermined function is in the ON state, the storage control means for storing the information of the trigger key in the storage means is provided. The input device according to any one of claims 1 to 11.
<Claim 13>
A computer of an input device that can detect which of the plurality of operation keys has been operated by scanning a key matrix circuit to which a plurality of operation keys are connected line by line.
A storage means in which scan control information including position information indicating a scan start position with respect to a column switching direction in the key matrix circuit is registered.
An operation operated by starting a scan on the key matrix circuit based on the scan control information, triggered by a temporary signal output from the key matrix circuit when any of the plurality of operation keys is operated. Scan control means to identify the key,
Information updating means for updating the position information based on the specific history of operation keys by the scanning control means,
A program characterized by functioning as.
<Claim 14>
A computer of an input device that can detect which of the plurality of operation keys has been operated by scanning a key matrix circuit to which a plurality of operation keys are connected line by line.
A storage means in which scan control information including position information indicating a scan start position with respect to a column switching direction in the key matrix circuit is registered.
An operation operated by starting a scan on the key matrix circuit based on the scan control information, triggered by a temporary signal output from the key matrix circuit when any of the plurality of operation keys is operated. Scan control means to identify the key,
Information updating means for updating the position information based on the specific history of operation keys by the scanning control means,
When the operation key operated at the time of detecting the temporary signal may be a trigger key for starting a predetermined function, before starting the predetermined function at the time when the temporary signal is detected. Device control means to start processing,
A program characterized by functioning as.

1 Handy terminal (input device)
11 CPU (scan control means, information update means, memory control means, device control means)
14 Storage unit (storage means)
141 Program 15A Function keys (operation keys)
15B trigger key (operation key, trigger key)
151 Key matrix circuit S1, S1A to A1F line signal line (line)
Signal lines (rows) in rows S2, S21 to S25
Trg, Trg1-Trg5 trigger key

Claims (14)

An input device capable of detecting which of the plurality of operation keys has been operated by scanning a key matrix circuit to which a plurality of operation keys are connected line by line.
A storage means in which scan control information including position information indicating a scan start position with respect to a column switching direction in the key matrix circuit is registered, and a storage means.
An operation operated by starting a scan on the key matrix circuit based on the scan control information, triggered by a temporary signal output from the key matrix circuit when any of the plurality of operation keys is operated. Scan control means to identify the key and
An information updating means for updating the position information based on a specific history of operation keys by the scanning control means, and
An input device characterized by being equipped with. The plurality of operation keys include a plurality of trigger keys for initiating a predetermined function.
The plurality of trigger keys are connected to the same row in the key matrix circuit.
The scan control means starts the scan from the row to which the plurality of trigger keys are connected with respect to the row switching direction in the key matrix circuit.
The input device according to claim 1. When the scan control means performs the first scan in the switching direction of the column, the information updating means uses the information about the trigger key last specified by the scan control means as the specific history to provide the position information. Update,
The input device according to claim 1 or 2. The information updating means updates the position information using the information about the trigger key, which is most frequently operated, as the specific history when the scan control means performs the second and subsequent scans in the switching direction of the column. To do
The input device according to any one of claims 1 to 3. The information updating means is
When the scan control means performs the first scan in the switching direction of the column, the position information is updated with the information of the trigger key most frequently operated as the specific history.
When the scan control means performs the second and subsequent scans in the switching direction of the column, the position information is updated with the information about the trigger key last specified by the scan control means as the specific history.
The input device according to claim 1 or 2. The information updating means is
When the scan control means performs the first scan in the switching direction of the column, the position information is updated with the information about the trigger key preset by the user as the specific history.
When the scan control means performs the second and subsequent scans in the switching direction of the column, the position information is updated with the information about the trigger key last specified by the scan control means as the specific history.
The input device according to claim 1 or 2. The information updating means is
When the scan control means performs the first scan in the switching direction of the column, the position information is updated with the information about the trigger key preset by the user as the specific history.
When the scan control means performs the second and subsequent scans in the switching direction of the column, the position information is updated with the information about the trigger key having the highest frequency of operation as the specific history.
The input device according to claim 1 or 2. The claim is characterized in that, when the scan is performed based on the specific history, the scan control means sets the scan order of the key matrix circuit with respect to the switching direction of the column to the order in which the operation frequency is high. The input device according to 1 or 2. The input device according to any one of claims 1 to 8, wherein the trigger key is a trigger key for reading a barcode. The input device according to any one of claims 1 to 9, wherein the specific history is history information for each user. When the operation key operated at the time of detecting the temporary signal may be a trigger key for starting a predetermined function, before starting the predetermined function at the time when the temporary signal is detected. The input device according to any one of claims 1 to 10, wherein the processing is started. When it is detected by the scan by the scan control means that the trigger key for starting a predetermined function is in the ON state, the storage control means for storing the information of the trigger key in the storage means is provided. The input device according to any one of claims 1 to 11. A computer of an input device that can detect which of the plurality of operation keys has been operated by scanning a key matrix circuit to which a plurality of operation keys are connected line by line.
A storage means in which scan control information including position information indicating a scan start position with respect to a column switching direction in the key matrix circuit is registered.
An operation operated by starting a scan on the key matrix circuit based on the scan control information, triggered by a temporary signal output from the key matrix circuit when any of the plurality of operation keys is operated. Scan control means to identify the key,
Information updating means for updating the position information based on the specific history of operation keys by the scanning control means,
A program characterized by functioning as. A computer of an input device that can detect which of the plurality of operation keys has been operated by scanning a key matrix circuit to which a plurality of operation keys are connected line by line.
A storage means in which scan control information including position information indicating a scan start position with respect to a column switching direction in the key matrix circuit is registered.
An operation operated by starting a scan on the key matrix circuit based on the scan control information, triggered by a temporary signal output from the key matrix circuit when any of the plurality of operation keys is operated. Scan control means to identify the key,
Information updating means for updating the position information based on the specific history of operation keys by the scanning control means,
When the operation key operated at the time of detecting the temporary signal may be a trigger key for starting a predetermined function, before starting the predetermined function at the time when the temporary signal is detected. Device control means to start processing,
A program characterized by functioning as.

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