JP7358971B2 - Input device and program - Google Patents

Description

The present invention relates to an input device and a program.

For example, input devices such as handheld terminals are used to manage the entry and exit of products to and from stores such as supermarkets and mass retailers, and warehouses where products are stored, as well as to inspect the products that have been stored. (For example, see Patent Documents 1 and 2).
When managing or inspecting products, for example, barcode reading may be performed using a barcode scanner of an input device to read barcodes of products that have been stocked or products that are to be shipped.

JP 2018-32032 Publication Japanese Patent Application Publication No. 2017-167634 Japanese Patent Application Publication No. 10-240416 JP2019-36297A Japanese Patent Application Publication No. 2007-34897

By the way, when reading the barcode of a product etc. with the barcode scanner of the input device as described above, when the user operates the input device by pressing the trigger key, for example, the power of the barcode scanner of the input device is turned off. There is an input device that is configured to enable a barcode scanner to read a barcode by turning on or transitioning from a sleep state to an active state.
Further, there are cases where an input device is provided with a plurality of such trigger keys.

When such an input device is used to manage the receipt and removal of the above-mentioned products, perform inspection processing, etc., the time from when the user operates any trigger key until the barcode scanner starts reading the barcode is The longer it takes to do so, the longer the time required for the above-mentioned inventory/output management and inspection processing.

In particular, in large supermarkets, mass retailers, warehouses, etc., the number of products, etc. entering and leaving the warehouse and the number of units may be extremely large.In such cases, barcodes for individual products, etc. as described above are If it takes a long time to read, the time required for warehousing/output management and inspection processing for all products etc. will increase, resulting in a decrease in work efficiency.
Therefore, in an input device such as a handy terminal equipped with a barcode scanner, it is desirable that the time from when any trigger key is operated to when the barcode scanner starts reading the barcode be as short as possible.

Furthermore, this problem is also the same with input devices such as keyboards (see, for example, Patent Documents 3 and 4) and game controllers (see, for example, Patent Document 5), in which the user uses predetermined operation keys such as the SHIFT key, CTRL key, etc. When repeating the operation of performing a predetermined process by operating one of the keys, ALT key, etc., if it takes a long time between operating these keys and starting the predetermined process, as a result, all The time required to perform a predetermined process becomes long.
Therefore, in this case as well, it is desirable to shorten the time period from when any predetermined operation key such as a keyboard is operated to when a predetermined process is started as much as possible.

The present invention has been made in view of the above points, and aims to shorten the time from when any of a plurality of predetermined operation keys (trigger keys, etc.) is operated until a predetermined process is started. The purpose is to provide an input device and a program that can.

In order to solve the above problems, the input device of the present invention includes:
An input device capable of detecting which of the plurality of operation keys has been operated by scanning a key matrix circuit to which the 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 performed by starting a scan of 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 for identifying the key;
information updating means for updating the position information based on the identification history of operation keys by the scan control means;
Equipped with

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

(a) It is a front view of the handy terminal concerning this embodiment, and (b) is a side view. FIG. 2 is a block diagram showing the main functional configuration of the handy terminal. (a) A diagram showing an example of the configuration of a key matrix circuit, and (b) a diagram showing an example of the correspondence between each key switch and each key. 5 is a timing chart showing that a predetermined voltage is sequentially applied to signal lines in each column during scanning. When a predetermined voltage is applied as shown in Fig. 4, (a) if the trigger key Trg1 is on, the detection timing will be early, and (b) if the trigger key Trg5 is on, the detection timing will be late. This is a timing chart. 7 is a timing chart showing that if the order of applying predetermined voltages to the signal lines of each column is changed, the detection timing becomes earlier even when the trigger key Trg5 is on. 7 is a timing chart showing that the order in which predetermined voltages are applied to signal lines in each column is changed in accordance with the order of operation frequency for each trigger key. 3 is a flowchart showing a control procedure by the CPU of the handy terminal according to the first embodiment. (a) It is a diagram showing the timing of starting the barcode scanner and reading the barcode in the first embodiment, and (b) It is a diagram showing the timing of starting the barcode scanner and reading the barcode in the second embodiment. It is a diagram. 7 is a flowchart showing a control procedure by the CPU of the handy terminal according to the second embodiment.

First and second embodiments of the present invention will be described below with reference to the accompanying drawings.
In the following embodiments, a case will be described in which a user uses a handy terminal as an input device to read a barcode on a product with a barcode scanner of the handy terminal. Any other type of input device such as a keyboard or a game controller may be used as long as it performs a key matrix scan (also referred to as a key matrix scan or the like). Further, the predetermined process performed by operating a predetermined operation key such as a trigger key may be a process other than barcode reading.

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

As shown in FIGS. 1(a) and 1(b), the handy terminal 1 (input device) includes a key input section 15 that accepts input of various information by the user, a display section 16 that displays various information, and a display section 16 for displaying various information such as products. A barcode scanner 18 for reading barcodes is provided.
The operation keys of the key input section 15 include cursor keys arranged on the front of the device, input keys for numbers and letters, function keys 15A such as function keys, and bars provided on the front, side, and back of the device. It includes a trigger key 15B for reading codes.

The display unit 16 includes an LCD (Liquid Crystal Display), an EL (Electro Luminescence) display, etc. arranged on the front of the device. Note that in this embodiment, a touch panel is arranged to overlap the screen of the display unit 16, and the user can input by touching the touch panel.

The barcode scanner 18 is placed on the back of the device and reads barcodes on products and the like. The barcode scanner 18 may be a laser scanner that scans a laser beam to read the barcode, or an imaging device that optically images the barcode and reads the barcode. Not limited to a specific form.

Next, the main functional configuration of the handy terminal 1 will be explained. FIG. 2 is a block diagram showing the main functional configuration of the handy terminal.
The handy terminal 1 includes a CPU 11, a RAM 12, a ROM 13, a storage section 14, a key input section 15, a display section 16, a wireless communication section 17, a barcode 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 section of the handy terminal 1 by performing various processes according to a program 141 stored in the storage section 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.
Note that it is also possible to provide a key controller section separately from the CPU 11 so that the key controller section functions as a scan control means under the control of the CPU 11.

The RAM 12 provides a working memory space for the CPU 11 and stores temporary data. RAM 12 may include nonvolatile memory.

The ROM 13 is a nonvolatile storage unit from which information can be read, and stores various setting data and the like.

The storage unit 14 is equipped with a storage device such as an HDD (Hard Disk Drive), an SSD (Solid State Drive), or a flash memory that can write and read data, and can be used as a storage means by storing the program 141 and various data. Function.

The key input unit 15 is provided with various operation keys including a cursor key, input keys such as numbers and letters, function keys 15A such as a function key, and a trigger key 15B for reading a bar code. Further, the key input section 15 includes a key matrix circuit 151. Scanning and the like for the key matrix circuit 151 will be explained later.
Further, the key input unit 15 is configured to accept input operations from a user on a touch panel arranged to overlap the screen of the display unit 16.

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

The wireless communication unit 17 is a communication module that includes an antenna, a modulation/demodulation circuit, a signal processing circuit, and the like, and performs communication control in accordance with a communication standard related to wireless communication using a wireless LAN (Local Area Network).

The barcode scanner 18 decodes a signal obtained by reading a barcode of a product or the like generated according to a predetermined rule, and outputs the decoded signal to the CPU 11. Note that at least a part of the signal decoding process may be performed by the CPU 11.
Further, in this embodiment, when the user operates the barcode scanner 18 by pressing any one of the plurality of trigger keys 15B (see FIGS. 1(a) and 1(b)), the barcode scanner 18 reads the barcode. It is set to start working.

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

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

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

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

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

The CPU 11 as a scan control means performs scanning by sequentially applying a predetermined voltage V to each signal line S21 to S25 in each column of the key matrix circuit 151, and scans the on or off state of each operation key (that is, the on or off state of a plurality of operation keys). (Which one was operated) is sequentially detected.

Specifically, when no operation key is operated (all operation keys are off), the key sampling voltage Vks is input to the CPU 11 from the signal lines S1A to S1F of each row. Further, a predetermined voltage Va is applied from the CPU 11 to the signal lines S21 to S25 in each column. Note that 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 column during scanning, or may be a voltage value different from the predetermined voltage V. It's okay.

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

Note that, as described above, a signal indicating that the voltage input from the signal line S1 of any row has changed from the key sampling voltage Vks to the predetermined voltage Va is hereinafter referred to as a temporary signal.
Furthermore, 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 in a certain row has been operated, but it is not clear which operation key has been operated. is not known at the time of temporary signal detection.
Therefore, when the CPU 11 detects a temporary signal as described above, the CPU 11 uses the temporary signal as a trigger to start scanning in order to detect which operation key has been operated (that is, which operation key is in the on state). It has become.

When performing a scan, as shown in FIG. 4, the CPU 11 once stops applying a predetermined voltage Va to the signal lines S21 to S25 in each column, and then applies a predetermined voltage V to the signal lines S21 to S25 in each column. Scanning is performed by sequentially applying the voltage.

Then, if the key sampling voltage Vks inputted from a certain signal line S1m changes to a predetermined voltage V and is output when a predetermined voltage V is applied to the signal line S2n in the nth column, the CPU 11 The operation key corresponding to the key switch ksw in the nth column is detected to be in the on state, 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 if it exists.
The CPU 11 performs such a detection process every time it sequentially applies a predetermined voltage V to the signal lines S21 to S25 in each column, thereby sequentially detecting the on or off state of each operation key. .

In the present embodiment, the CPU 11 sequentially detects whether each operation key is in the on state or in the off state as described above, and detects that the trigger key Trg is in the on state. When detected, the barcode scanner 18 (predetermined device) is configured to read the barcode (predetermined processing).

That is, in the present embodiment, when the CPU 11 detects that the trigger key Trg is in the on state, the CPU 11 starts the barcode scanner 18 to start barcode reading, or changes the state in which the barcode scanner 18 is started. to start barcode reading.
Note that the structure of the barcode scanner 18, barcode reading by the barcode scanner 18, and the like are well known, and therefore a description thereof will be omitted.

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

When it is detected that any of the trigger keys Trg1 to Trg5 is in the on state through the above scan, 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 column switching direction.
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) can read scan control information to determine the position. Based on the information, it is possible to start scanning the key matrix circuit.

Then, the CPU 11 as the scan control means described above starts scanning in response to a temporary signal outputted from the key matrix circuit 151 when any of the plurality of operation keys is operated. The operation key operated by the user is identified by starting a scan of the key matrix circuit based on the control information.
Further, the CPU 11 serving as an information updating unit updates the above-mentioned position information based on a history of specifying operation keys by the scan control unit (CPU 11).
This will be explained in detail below.

As described above, in the handy terminal 1 of this embodiment, when the user operates any of the trigger keys Trg1 to Trg5, the barcode scanner 18 of the handy terminal 1 starts reading a barcode.

At this time, if the order of application of the predetermined voltage V to the signal lines S21 to S25 in each column during scanning is fixed to the order of signal line S21, signal line S22, ..., signal line S25, for example, the user When the trigger key Trg1 is operated to read a barcode, the trigger key Trg1 is in an on state when the CPU 11 applies a predetermined voltage V to the signal line S21, as shown in FIG. 5(a). This is detected and the barcode scanner 18 is activated.
In this way, when the user operates the trigger key Trg1, the barcode scanner 18 starts reading the barcode in a short time when the user operates the trigger key Trg1.

However, for example, when the user operates the trigger key Trg5 (for example, the trigger key 15B provided on the back of the device in FIG. 1(b)), as shown in FIG. 5(b), the CPU 11 connects the signal line S21, A predetermined voltage V is sequentially applied to the signal lines S22, .
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. Until the code scanner 18 starts reading the barcode, it takes a waste of time to sequentially apply the predetermined voltage V to the signal lines S21 to S24. During this time, the user has to wait for barcode reading to start.

Although this delay time is not very long for one barcode reading, as mentioned above, the number and number of units of products, etc. that enter and exit large supermarkets, mass retailers, warehouses, etc. is extremely large. In this case, the delay time accumulates each time a barcode is read for an individual product. As a result, it takes a long time to manage the stocking and discharging of all products, inspect them, etc., and work efficiency decreases.

Therefore, in the present embodiment, when the CPU 11 as a scan control means starts a scan triggered by a temporary signal as described above, the CPU 11 reads scan control information from the storage unit 14 as a storage means, and reads out the scan control information from the storage unit 14 as a storage means. By starting scanning the key matrix circuit 151 based on the position information, the operated operation key is identified.
In addition, the position information is updated by the CPU 11 as an information update unit based on the identification history of operation keys by the scan control unit (CPU 11) (i.e., the history of operation keys etc. specified by the scan control unit). function as a means).

In this way, the position information is updated based on the history of the operation keys identified by scanning the key matrix circuit 151, and the key matrix circuit is updated based on the updated position information (scan control information) during 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 column corresponding to the trigger key Trg that is likely to be operated by the user, so that the predetermined voltage V can be started after the trigger key Trg is operated. This increases the possibility that the time required for barcode scanner 1 to start reading barcodes will be shortened.
In this embodiment, in this way, the time from when any one of the plurality of trigger keys Trg1 to Trg5 is operated until a predetermined process (in this case, barcode reading) is started is shortened. ing.

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

(A) The above-mentioned identification history is, for example, a history such as an identification number regarding the trigger key Trg that was last identified by the scan control means (CPU 11) (i.e., the trigger key Trg that was identified during the previous (immediate) scan). It is possible to do so.
In this case, each time the trigger key Trg is operated, the CPU 11 overwrites and saves the identification number of the operated trigger key Trg as a specific history.

When reading barcodes continuously, the user is likely to repeatedly operate the same trigger key Trg. Therefore, by setting the identification history as a history such as the identification number related to the trigger key Trg that was last specified by the scan control means (CPU 11), when the CPU 11 as the scan control means performs a scan, the trigger operated by the user There is a high possibility that the key Trg will be detected at the time of the first application of the predetermined voltage V in the scan.
Therefore, it is possible to increase the possibility that the time from when the trigger key Trg is operated until the barcode scanner 1 starts reading the barcode will be shortened.

Specifically, when the trigger key Trg last specified by the CPU 11 as the scan control means is, for example, the trigger key Trg5, the CPU 11 uses the position information (scan control information) updated by the information update means (CPU 11). Based on this, as shown in FIG. 6, the order in which the predetermined voltage V is applied to the signal lines S21 to S25 in each column during scanning is determined to correspond to the trigger key Trg5 (that is, the trigger key Trg5 specified last by the scan control means). Application of a predetermined voltage V is started from the signal line S25 of the column to start scanning the key matrix circuit 151.
With this configuration, since it is considered that the user is likely to operate the trigger key Trg5 that was last operated again, barcode reading by the barcode scanner 1 is started after the user operates the trigger key Trg. This makes it possible to increase the possibility that the time it takes to complete the process will be shortened.

(B) Furthermore, the above-mentioned specific history may be, for example, a history related to the trigger key Trg that is operated most frequently.
In this case, the CPU 11 counts the number of times the trigger key Trg has been operated for each trigger key Trg from the time when the power of the handy terminal 1 is turned on, and stores the frequency of operations for each trigger key Trg as a history. Remember.

When a user continuously reads barcodes, there is a tendency to repeatedly use the same trigger key Trg depending on the user's habits and ease of use, so there is a difference in the frequency of operation of multiple trigger keys Trg1 to Trg5, resulting in a difference in the operation frequency. It is considered that the trigger key Trg, which is frequently operated, is operated more frequently. Therefore, by setting the specific history as the history related to the trigger key Trg operated most frequently, when the CPU 11 as a scan control means performs a scan, the trigger key Trg operated by the user is set as the first predetermined one in the scan. There is a high possibility of detection at the time when the voltage V is applied.
Therefore, it is possible to increase the possibility that the time from when the trigger key Trg is operated until the barcode scanner 1 starts reading the barcode will be shortened.

Specifically, when the trigger key Trg operated most frequently is, for example, the trigger key Trg5, the CPU 11 performs the scan control based on the position information (scan control information) updated by the information update means (CPU 11). The key matrix circuit 151 changes the order in which the predetermined voltage V is applied to the signal lines S21 to S25 in each column by starting the application of the predetermined voltage V from the signal line S25 in the column corresponding to the trigger key Trg5 operated most frequently. (See FIG. 6).
With this configuration, it is considered that there is a high possibility that the user will operate the trigger key Trg5 that is operated most frequently, so the barcode scanner 1 will not be able to read the barcode after the user operates the trigger key Trg. It is possible to increase the possibility that the time until the start is shortened.

(C) 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 column corresponding to the trigger keys Trg1 to Trg5 is It is also possible to change the order of application of the predetermined voltage V to S25 so as to correspond to the order of the operation frequency of each trigger key Trg.
That is, if the order of operation frequency for each trigger key Trg stored in the memory is, for example, trigger keys Trg5, Trg3, Trg4, Trg1, and Trg2 in descending order, the corresponding keys are assigned as shown in FIG. It is also possible to determine the order of application so that the predetermined voltage V is applied to the signal lines S25, S23, S24, S21, and S22 in each column in that order. In this case, a rule is predetermined such that when the plurality of trigger keys Trg are operated at the same frequency, for example, the predetermined voltage V is applied in ascending order of the number.

With this configuration, even if the user operates a trigger key Trg other than the most frequently operated trigger key, the user operates the trigger key Trg with less operating experience (that is, the trigger key Trg that is operated less frequently). Since it is considered that there is a high possibility that the user will operate a trigger key Trg with which he or she has a lot of experience (that is, a trigger key Trg that is operated frequently), the operated trigger key Trg is set at an earlier stage of the application of the first predetermined voltage V during scanning. more likely to be detected.
Therefore, it is possible to further increase the possibility that the time from when the trigger key Trg is operated to when the barcode scanner 1 starts reading the barcode will be shortened.

(D) Note that in (A) to (C) above, the trigger key Trg frequently operated by the user may differ from user to user depending on the user's habits, ease of use, and the like.
Therefore, it is possible to configure the above information to be collected for each user and set as information for each user. Further, it is also possible to configure so that the distribution of operation frequencies for each trigger key Trg (in the case of (C)) is stored for each user.

In this case, the CPU 11 is configured to acquire the above-mentioned information corresponding to the user based on, for example, the user's own identification number registered at the time of starting use of the handy terminal 1.
With this configuration, the order in which the predetermined voltage V is applied to the signal line S2 of each column during scanning can be determined for each user according to the user's habits, etc., and the trigger key Trg can be operated. This makes it possible to further increase the possibility of shortening the time from when the barcode scanner 1 starts reading the barcode.

(E) In each of the above cases, it is possible to configure the handy terminal 1 itself to store the specific history in its memory, but for example, it is also possible to save the specific history in a management server, etc. It is also possible to configure
In this case, the CPU 11 is configured to acquire the specific history from the memory of the handy terminal 1, the management server, etc. when the handy terminal 1 is started.

(F) Note that the above position information is configured to be configured so that the user can specify the trigger key Trg to be used in advance, so that the user can set the above position information in advance (i.e., the user It is also possible to configure the scanning to start from the signal line S2 of the column to which the specified trigger key Trg is connected.
For example, when starting to use the handy terminal 1, a list of the plurality of trigger keys Trg1 to Trg5 of the handy terminal 1 may be displayed on the display unit 16 (see FIG. 1(a)) to prompt the user to select the trigger key Trg to be used. It is possible to configure the settings to be specified. 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 there is a high possibility that the user uses the trigger key Trg that he or she has specified. Therefore, when the CPU 11 starts scanning, if it starts scanning from the signal line S2 of the column to which the trigger key Trg specified by the user is connected, the trigger key Trg operated by the user is set to the first predetermined voltage in the scan. The possibility of detection increases when V is applied.
Therefore, it is possible to increase the possibility that the time from when the trigger key Trg is operated until the barcode scanner 1 starts reading the barcode will be shortened.

Specifically, when the user specifies, for example, the trigger key Trg5, the CPU 11 applies the predetermined voltage V to the signal lines S21 to S25 in each column in the scan using the trigger specified by the user, as shown in FIG. Application of a predetermined voltage V is started from the signal line S25 in the column corresponding to the key Trg5.
With this configuration, since it is considered that there is a high possibility that the user will operate the trigger key Trg5 that he or she has specified, barcode reading by the barcode scanner 1 is started after the user operates the trigger key Trg. This makes it possible to increase the possibility that the time required to complete the process will be shortened.

(G) Furthermore, 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, during the first scan, the column corresponding to the last operated trigger key Trg (that is, the trigger key Trg operated on the previous day or the last barcode reading, etc.) Application of a predetermined voltage V is started from the signal line S2 to perform scanning (see (A) above), and at the same time, counting of the number of operations for each trigger key Trg is started.
Then, during the second and subsequent scans, application of a predetermined voltage V is started from the signal line S2 of the column corresponding to the trigger key Trg operated most frequently based on the operation frequency of each trigger key Trg. It can be configured to perform scanning (see (D) above).

Therefore, in this case, when the scan control means (CPU 11) performs the first scan, the CPU 11 as the information update means scans based on the specific history as the history regarding the trigger key Trg that was last specified by the scan control means. The position information indicating the start position is updated, and when the scan control means performs a second or subsequent scan, the position information is updated based on a specific history as a history regarding the trigger key Trg operated most frequently. configured.
Note that during the second and subsequent scans, the order in which the predetermined voltage V is applied to the signal line S2 of each column during scanning is changed as appropriate depending on the operation frequency of each trigger key Trg (see (C) above). It is also possible to configure it as follows.

(G-2) Also, for example, at the time of the first scan, the application of a predetermined voltage V is started from the signal line S2 of the column corresponding to the trigger key Trg operated most frequently, and the scan is performed (as described above). (See (B)).
Then, during the second and subsequent scans, a predetermined voltage V is applied from the signal line S2 of the column corresponding to the last operated trigger key Trg (that is, the trigger key Trg operated during the previous barcode reading). It is also possible to perform a scan by starting the application (see (A) above).

Therefore, in this case, when the scan control means (CPU 11) performs the first scan, the CPU 11 serving as the information updating means determines the scan start position based on the specific history as the history regarding the trigger key Trg operated most frequently. The position information indicating the trigger key Trg is updated, and when the scan control means performs a second or subsequent scan, the position information is updated based on the specific history as the history regarding the trigger key Trg that was last specified by the scan control means. configured.
In this case as well, when reading the barcode for the first time, the order in which the predetermined voltage V is applied to the signal line S2 of each column during scanning is changed as appropriate depending on the operation frequency for each trigger key Trg (see (above)). It is also possible to configure it as shown in C).

(G-3) Also, for example, during the first scan, the application of a predetermined voltage V is started from the signal line S2 of the column corresponding to the trigger key Trg specified by the user, and the scan is performed ((F ), and starts counting the number of operations for each trigger key Trg.
Then, during the second and subsequent scans, application of a predetermined voltage V is started from the signal line S2 of the column corresponding to the trigger key Trg operated most frequently based on the operation frequency of each trigger key Trg. It is also possible to configure the order in which the predetermined voltages V are applied to be determined by changing the order in which the predetermined voltages V are applied so as to perform scanning (see (B) above).

Therefore, in this case, when the scan control means (CPU 11) performs the first scan, the CPU 11 as the information updating means updates the position information corresponding to the operation key specified by the user as the position information indicating the scan start position. However, during the second and subsequent scans by the scan control means, the position information is updated based on a specific history as a history related to the most frequently operated trigger key Trg.
Also in this case, during the second and subsequent scans, the order in which the predetermined voltage V is applied to the signal line S2 of each column during scanning is changed and determined as appropriate according to the operation frequency of each trigger key Trg ( It is also possible to configure it as shown in (C) above.

(G-4) Also, for example, during the first scan, the application of a predetermined voltage V is started from the signal line S2 of the column corresponding to the trigger key Trg specified by the user, and the scan is performed ((F )reference).
Then, during the second and subsequent scans, a predetermined voltage V is applied from the signal line S2 of the column corresponding to the last operated trigger key Trg (that is, the trigger key Trg operated during the previous barcode reading). It is also possible to configure such that the order of applying the predetermined voltage V is changed and determined, such as starting the application and performing the scan (see (A) above).

Therefore, in this case, when the scan control means (CPU 11) performs the first scan, the CPU 11 as the information updating means updates the position information corresponding to the operation key specified by the user as the position information indicating the scan start position. However, during 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 that was last specified by the scan control means.

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

When the power of the handy terminal 1 is turned on, the CPU 11 reads out the information from the memory or sends it from the management server, etc., to a specific history, that is, in this case, the last operated trigger key Trg (that is, the last trigger key Trg of the previous day, etc.). A history such as the identification number of the trigger key Trg) operated when reading the barcode is acquired (step S101).
Then, the CPU 11 updates the position information indicating the scan start position for the key matrix circuit 151 based on the acquired specific history (step S102; functions as an information update unit).

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

Then, each time the CPU 11 sequentially applies a predetermined voltage V to the signal line S2 of each column during scanning, the CPU 11 sequentially detects the on or off state of each operation key. If the selected operation key is not the trigger key Trg ("NO" in step S105), the process returns to step S103 after scanning is performed to the end.

Note that if the operated operation key (specified operation key) is not the trigger key Trg, the CPU 11 returns the process to step S103 for control for reading this barcode (predetermined process); Needless to say, at the same time, processing corresponding to the operated operation key is performed.
In addition, "when the operated operation key is not the trigger key Trg" includes cases where the operated operation key is an operation key other than the trigger key Trg, and cases where the operated operation key is the trigger key Trg. This also includes cases where the trigger key Trg is set to be disabled, or cases where the trigger key Trg is customized as an operation key for other purposes rather than the trigger key Trg for barcode reading.

On the other hand, if 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 and activates the barcode scanner 18. The barcode is read (step S106). Note that the barcode scanner 18 may be activated in advance by a user operation.

Further, as described above, while activating the barcode scanner 18 to read the barcode (step S106), the CPU 11 also issues the identification number of the operated trigger key Trg (identified trigger key Trg), etc. information is stored in the storage unit 14 (storage 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, operation frequency) for each trigger key Trg as the specific history, and stores the information in the storage unit 14. 14 (step S108).
Subsequently, the CPU 11 performs necessary processes such as inspecting the product whose barcode has been read and transmitting data to a management server or the like in accordance with the user's operation (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 the specific history (step S101), and the acquired specific history, in this case, From the second time onwards, application of the predetermined voltage V is started from the signal line S2 of the column corresponding to the trigger key Trg operated most frequently based on the operation frequency for each trigger key Trg stored in the storage unit 14. The positional information indicating the scan start position is updated (step S102; function as information updating means).
Then, the CPU 11 repeats the above-mentioned 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, by scanning the key matrix circuit 151 to which a plurality of operation keys are connected for each row S1A to S1F, a plurality of In the input device 1 capable of detecting which of the operation keys has been operated, a storage means 14 is stored in which scan control information including position information indicating a scan start position with respect to the switching direction of columns S21 to S25 in the key matrix circuit 151 is registered. In preparation, the CPU 11 starts scanning the key matrix circuit 151 based on 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 position information is updated based on the identification history of the operation keys by the scan control means (information update means).

Therefore, by updating the position information based on the above specific history, application of the predetermined voltage V is started from the signal line S2 in the column corresponding to the trigger key Trg that 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 when the user operates one of the plurality of trigger keys Trg1 to Trg5 to when a predetermined process such as barcode reading is started is shortened.
In this embodiment, in this way, it is possible to shorten the time from when any one of the plurality of trigger keys Trg1 to Trg5 is operated until a predetermined process (for example, barcode reading) is started. becomes.

Furthermore, the program of this 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. 151, the CPU 11, which is the computer of the input device 1, includes the storage means 14 in which scan control information including position information indicating the scan start position with respect to the switching direction of the columns S21 to S25 is registered. scan control means that identifies an operated operation key by starting a scan of the key matrix circuit 151 based on scan control information, triggered by a temporary signal output from the key matrix circuit 151 when the operation key is operated; It is made to function as an information updating means for updating position information based on the identification history of operation keys by the control means.
By operating the CPU 11 of the handy terminal 1 with 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, barcode reading) is started can be reduced. This makes it possible to shorten the time.

[Second embodiment]
Next, a second embodiment of the present invention will be described. In this embodiment, the configuration of the handy terminal 1 (input device) is the same as in the first embodiment, and will be described using the same reference numerals as in the first embodiment.

In the first embodiment, as described above, the CPU 11 starts scanning the key matrix circuit 151 based on the scan control information including the position information updated based on the specific history, thereby controlling the operated operation key. When it is detected that the identified operation key is the trigger key Trg (that is, the trigger key Trg is in the on state), the barcode scanner 18 is activated to scan the barcode as shown in FIG. 9(a). I had the code read.

In the second embodiment, instead of activating the barcode scanner 18 after scanning and detecting that the trigger key Trg is on, as shown in FIG. 9(b), By starting preprocessing to start 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 this embodiment, as described above, the CPU 11 starts scanning in the column switching direction when a temporary signal is detected, but the operation key operated at the time of detecting the temporary signal starts a predetermined function. If there is a possibility that the trigger key is a trigger key for a temporary signal, preprocessing for starting a predetermined function is started at the moment a temporary signal is detected.

Here, the case where there is a possibility that the operation key operated at the time of detecting the temporary signal is the trigger key Trg means that the voltage input to the CPU 11 from the signal line S1 of the row to which the trigger key Trg is connected is the key sampling. This means a case where the voltage Vks changes to a predetermined voltage Va.
For example, if the trigger keys Trg are connected to the signal line S1A in one row as shown in FIGS. 3(a) and 3(b), the voltage input from the signal line S1A is the key sampling This represents a case where the voltage Vks changes to a predetermined voltage Va. For example, although not shown, if a plurality of trigger keys Trg are connected to the row signal lines S1A, S1B, and S1C, the row signal This represents a 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, with this configuration, the barcode scanner 18 is activated in advance, so that the barcode scanner 18 can be started up in advance, so that the barcode scanner 18 can be activated from when any one of the plurality of trigger keys Trg is operated to when barcode reading starts. It is designed to further reduce the time required.
Note that activating the barcode scanner 18 (predetermined device) means turning on the scanner's power, transitioning from a sleep state to an active state (standby state), or in the case of a laser scanner, starting a mirror shaking operation. (The laser does not light up at this point.) In the case of a 2D scanner, this includes starting the transfer of camera images and performing exposure control (The auxiliary light does not light up at this point.).

Next, a control procedure for each process when the user presses the trigger key Trg to read a 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 in FIG. 10 corresponds to the flowchart in FIG. 8 in which steps S111 and S112 are added after step S103, and step S113 is added after step S105 in the case of a NO determination in step S105. Below, differences from the flowchart in FIG. 8 will be explained.

In this embodiment, the CPU 11 detects that the voltage input from the signal line S1 of any row has changed from the key sampling voltage Vks to a predetermined voltage Va, and detects that any operation key has been operated. When a temporary signal is detected (“YES” in step S103), it is determined as described above whether or not there is a possibility that the operation key operated at the time of detection of the temporary signal is the trigger key Trg (step S111). ), if there is a possibility (“YES” in step S111), the barcode scanner 18 (predetermined device) is activated at the time 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 moves the process to step S104. let
Note that 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 is After stopping the activation of the scanner 18 (predetermined device) (step S113), the process returns to step S103.

Note that if the operated operation key is not the trigger key Trg, the CPU 11 returns the process to step S103 for control for reading this barcode (predetermined process), but at the same time Needless to say, processing corresponding to the key is performed.
In addition, "when the operated operation key is not the trigger key Trg" includes cases where the operated operation key is an operation key other than the trigger key Trg, and cases where the operated operation key is the trigger key Trg. This also includes cases where the trigger key Trg is set to be invalid, or cases where the trigger key Trg is customized as an operation key for other purposes rather than the trigger key Trg for barcode reading.

As described above, according to the handy terminal 1 (input device) and the program according to the second embodiment, by scanning the key matrix circuit 151 to which a plurality of operation keys are connected for each row S1A to S1F, a plurality of In the input device 1 capable of detecting which of the operation keys has been operated, a storage means 14 is stored in which scan control information including position information indicating a scan start position with respect to the switching direction of columns S21 to S25 in the key matrix circuit 151 is registered. In preparation, the CPU 11 starts scanning the key matrix circuit 151 based on 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 position information is updated based on the identification history of the operation keys by the scan control means (information update means).
In addition, if there is a possibility that the operation key operated at the time of detecting the temporary signal is a trigger key for starting a predetermined function, the CPU 11 performs a trigger key for starting the predetermined function at the time of detecting the temporary signal. Start pre-processing.

In this way, in this embodiment, if there is a possibility that the operation key operated at the time of detection of a temporary signal is a trigger key for starting a predetermined function, the predetermined function is started at the time of detection of the temporary signal. Since the preprocessing for reading the barcode is started (for example, activating the barcode scanner 18 (predetermined device)), barcode reading can be started earlier.

Therefore, there is a high possibility that the time from the user operating any one of the plurality of trigger keys Trg to the start of a predetermined process such as barcode reading will be further shortened.
In this embodiment, in this way, it is possible to shorten the time from when any one of the plurality of trigger keys Trg is operated until a predetermined process (for example, barcode reading) is started. .

Furthermore, the program of this 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. 151, the CPU 11, which is the computer of the input device 1, includes the storage means 14 in which scan control information including position information indicating the scan start position with respect to the switching direction of the columns S21 to S25 is registered. scan control means that identifies an operated operation key by starting a scan of the key matrix circuit 151 based on scan control information, triggered by a temporary signal output from the key matrix circuit 151 when the operation key is operated; information updating means for updating position information based on a history of identification of operation keys by the control means;
If there is a possibility that the operation key operated when the temporary signal is detected is a trigger key for starting the predetermined function, start preprocessing to start the predetermined function at the time the temporary signal is detected. It functions as a device control means.
By operating the CPU 11 of the handy terminal 1 with 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, barcode reading) is started can be reduced. This makes it 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 equivalent ranges thereof.
Below, the invention described in the claims first attached to the application of this application will be added. The claim numbers listed in the supplementary notes are as in the claims originally attached to the request 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 the 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 performed by starting a scan of 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 for identifying the key;
information updating means for updating the position information based on the identification history of operation keys by the scan control means;
An input device comprising:
<Claim 2>
The plurality of operation keys include a plurality of trigger keys for starting 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 a row to which the plurality of trigger keys are connected in a row switching direction in the key matrix circuit.
The input device according to claim 1, characterized in that:
<Claim 3>
The information updating means updates the position information with information regarding the trigger key last identified by the scan control means as the identification history when the scan control means performs an initial scan in the column switching direction. Update,
The input device according to claim 1 or 2, characterized in that:
<Claim 4>
The information updating means updates the position information using information regarding the trigger key operated most frequently as the specific history when the scan control means performs a second or subsequent scan in the column switching direction. do,
The input device according to any one of claims 1 to 3, characterized in that:
<Claim 5>
The information updating means includes:
When the scan control means performs the first scan in the column switching direction, updating the position information using information of the trigger key operated most frequently as the specific history;
When the scan control means performs a second or subsequent scan in the column switching direction, updating the position information using information regarding the trigger key last identified by the scan control means as the identification history;
The input device according to claim 1 or 2, characterized in that:
<Claim 6>
The information updating means includes:
When the scan control means performs the first scan in the column switching direction, updating the position information using information regarding the trigger key set in advance by the user as the specific history;
When the scan control means performs a second or subsequent scan in the column switching direction, updating the position information using information regarding the trigger key last identified by the scan control means as the identification history;
The input device according to claim 1 or 2, characterized in that:
<Claim 7>
The information updating means includes:
When the scan control means performs the first scan in the column switching direction, updating the position information using information regarding the trigger key set in advance by the user as the specific history;
When the scan control means performs a second or subsequent scan in the column switching direction, updating the position information using information regarding the trigger key operated most frequently as the specific history;
The input device according to claim 1 or 2, characterized in that:
<Claim 8>
2. The scan control means, when performing the scan based on the specific history, sets the order in which the key matrix circuits are scanned in the column switching direction in the order in which the key matrix circuits are operated most frequently. 2. The input device according to 1 or 2.
<Claim 9>
9. The input device according to claim 1, wherein the trigger key is a trigger key for reading a barcode.
<Claim 10>
The input device according to claim 1, wherein the specific history is history information for each user.
<Claim 11>
If there is a possibility that the operation key operated at the time of detecting the temporary signal is a trigger key for starting a predetermined function, the predetermined function is activated at the time of detecting the temporary signal. The input device according to any one of claims 1 to 10, characterized in that the input device starts processing.
<Claim 12>
A storage control means for storing information on the trigger key in the storage means when it is detected that a trigger key for starting a predetermined function is in an on state through the scan by the scan control means. The input device according to any one of claims 1 to 11, characterized in that:
<Claim 13>
A computer as an input device capable of detecting which of the plurality of operation keys has been operated by scanning a key matrix circuit to which the plurality of operation keys are connected line by line;
storage means in which scan control information including position information indicating a scan start position with respect to the column switching direction in the key matrix circuit is registered;
An operation performed by starting a scan of 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. scanning control means for identifying keys;
information updating means for updating the position information based on the identification history of operation keys by the scan control means;
A program characterized by functioning as
<Claim 14>
A computer as an input device capable of detecting which of the plurality of operation keys has been operated by scanning a key matrix circuit to which the plurality of operation keys are connected line by line;
storage means in which scan control information including position information indicating a scan start position with respect to the column switching direction in the key matrix circuit is registered;
An operation performed by starting a scan of 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. scanning control means for identifying keys;
information updating means for updating the position information based on the identification history of operation keys by the scan control means;
If there is a possibility that the operation key operated at the time of detecting the temporary signal is a trigger key for starting a predetermined function, the predetermined function is activated at the time of detecting the temporary signal. device control means for starting the process;
A program characterized by functioning as

1 Handy terminal (input device)
11 CPU (scan control means, information update means, storage control means, device control means)
14 Storage unit (storage means)
141 Program 15A Function key (operation key)
15B Trigger key (operation key, trigger key)
151 Key matrix circuit S1, S1A to A1F row signal line (row)
S2, S21 to S25 column signal line (column)
Trg, Trg1 to 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 the 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 performed by starting a scan of 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 for identifying the key;
information updating means for updating the position information based on the identification history of operation keys by the scan control means;
An input device comprising: The plurality of operation keys include a plurality of trigger keys for starting 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 a row to which the plurality of trigger keys are connected in a row switching direction in the key matrix circuit.
The input device according to claim 1, characterized in that: The information updating means updates the position information with information regarding the trigger key last identified by the scan control means as the identification history when the scan control means performs an initial scan in the column switching direction. Update,
The input device according to claim 2 , characterized in that: The information updating means updates the position information using information regarding the trigger key operated most frequently as the specific history when the scan control means performs a second or subsequent scan in the column switching direction. do,
The input device according to claim 2 or 3, characterized in that: The information updating means includes:
When the scan control means performs the first scan in the column switching direction, updating the position information using information of the trigger key operated most frequently as the specific history;
When the scan control means performs a second or subsequent scan in the column switching direction, updating the position information using information regarding the trigger key last identified by the scan control means as the identification history;
The input device according to claim 2 , characterized in that: The information updating means includes:
When the scan control means performs the first scan in the column switching direction, updating the position information using information regarding the trigger key set in advance by the user as the specific history;
When the scan control means performs a second or subsequent scan in the column switching direction, updating the position information using information regarding the trigger key last identified by the scan control means as the identification history;
The input device according to claim 2 , characterized in that: The information updating means includes:
When the scan control means performs the first scan in the column switching direction, updating the position information using information regarding the trigger key set in advance by the user as the specific history;
When the scan control means performs a second or subsequent scan in the column switching direction, updating the position information using information regarding the trigger key operated most frequently as the specific history;
The input device according to claim 2 , characterized in that: 2. The scan control means, when performing the scan based on the specific history, sets the order in which the key matrix circuits are scanned in the column switching direction in the order in which the key matrix circuits are operated most frequently. 2. The input device according to 2 . The input device according to any one of claims 2 to 8, wherein the trigger key is a trigger key for reading a barcode. 10. The input device according to claim 2 , wherein the specific history is history information for each user. If there is a possibility that the operation key operated at the time of detecting the temporary signal is a trigger key for starting a predetermined function, the predetermined function is activated at the time of detecting the temporary signal. The input device according to any one of claims 2 to 10, characterized in that the input device starts processing. A storage control means for storing information on the trigger key in the storage means when it is detected that a trigger key for starting a predetermined function is in an on state through the scan by the scan control means. The input device according to any one of claims 2 to 11, characterized in that: A computer as an input device capable of detecting which of the plurality of operation keys has been operated by scanning a key matrix circuit to which the plurality of operation keys are connected line by line;
storage means in which scan control information including position information indicating a scan start position with respect to the column switching direction in the key matrix circuit is registered;
An operation performed by starting a scan of 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. scanning control means for identifying keys;
information updating means for updating the position information based on the identification history of operation keys by the scan control means;
A program characterized by functioning as A computer as an input device capable of detecting which of the plurality of operation keys has been operated by scanning a key matrix circuit to which the plurality of operation keys are connected line by line;
storage means in which scan control information including position information indicating a scan start position with respect to the column switching direction in the key matrix circuit is registered;
An operation performed by starting a scan of 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. scanning control means for identifying keys;
information updating means for updating the position information based on the identification history of operation keys by the scan control means;
If there is a possibility that the operation key operated at the time of detecting the temporary signal is a trigger key for starting a predetermined function, the predetermined function is activated at the time of detecting the temporary signal. device control means for starting the process;
A program characterized by functioning as

Images