JP5212389B2 - Optical information reader - Google Patents

Description

  The present invention relates to an optical information reading apparatus for inputting information into a display area on a display screen.

  2. Description of the Related Art Conventionally, a table data input / output device disclosed in Patent Document 1 is known as an optical information reading device that inputs information into a display area on a display screen. In this table data input / output device, when data that needs to be reviewed or corrected is selected from the table data stored in the table data storage means, this table data is displayed on the display means. Subsequently, the selected display data and a plurality of barcodes for designating the type of the table and the position in the row direction and the position in the column direction of each data in the table are printed as a data table form. When correcting the data displayed in the data table form, the bar code reader reads the bar code of the row and column displayed in the data table form corresponding to the data, and displays the data. The cell pointer is moved to a position where the data to be corrected can be corrected by the means.

JP 05-342239 A

  By the way, as an optical information reading device, since it usually has only a keyboard as an input device and does not have an input auxiliary device that can easily move a cursor on a display screen such as a mouse, a desired information on a display screen is obtained. It took time and effort to move the cursor to the position. Therefore, as in Patent Document 1, barcodes corresponding to the rows and columns of the respective input positions are printed, and the barcode corresponding to the desired data input area is read as two rows and columns with this printed matter. Thus, it is conceivable to move the cursor to a desired position.

  However, it is necessary not only to print for each display screen, but also to reliably read two barcodes corresponding to a desired position as a row and a column. It was difficult.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an optical information reader that can easily move a cursor to a desired position in a display area. is there.

In order to achieve the above object, in the optical information reading apparatus according to claim 1, the illumination means for irradiating the information code with illumination light and the light reception for receiving the reflected light from the information code. Input means for optically reading the information code based on a light reception signal from the light receiving means, and a display area capable of displaying a plurality of pieces of information. An information display means for displaying a cursor indicating a position information code, wherein the position information code has position information relating to a position placed in the predetermined area When at least one of the position information codes is read by the reading means and the reading means reads the position information of the position information code. Based on the reading position calculation means for calculating the reading position with respect to the predetermined area, the positional relationship between the predetermined area and the display area is made to correspond to the position in the display area corresponding to the reading position. Cursor movement means for moving a cursor, and the reading position calculation means is reflected light from the illumination light and at least one of the position information codes by the illumination light applied to the predetermined area. Is received from the light receiving means, the position information of the position information code read by the reading means and the position occupied by the position information code with respect to the illumination light in the predetermined area. characterized that you calculating the center position of the illumination light as the reading position.

In the optical information reading apparatus according to claim 2, the illumination means for irradiating the information code with illumination light, the light receiving means for receiving the reflected light from the information code, and the light receiving means A reading means for optically reading the information code based on the received light signal and a cursor indicating a position where the input information is displayed in the display area having a display area capable of displaying a plurality of information are displayed. And an information display means for displaying a plurality of position information codes arranged in a predetermined area and including position information relating to positions arranged with respect to the predetermined area. When at least one of the position information codes is read by the code display means and the reading means, the predetermined area is determined based on the position information of the position information code. And a cursor moving means for moving the cursor to a position in the display area corresponding to the reading position by associating a positional relationship between the predetermined area and the display area. And the reading position calculating means receives the reflected light from the illumination light and at least two of the position information codes by the light receiving means by the illumination light applied to the predetermined area. The center of the illumination light from the position information of each of the two position information codes read by the reading means and the position occupied by the both position information codes with respect to the illumination light in the predetermined area. The position is calculated as the reading position.

According to a third aspect of the present invention, in the optical information reading device according to the first or second aspect , the input information can be input to the information display means by moving the cursor by the cursor moving means. A plurality of data input areas are displayed.

According to a fourth aspect of the present invention, in the optical information reading device according to the third aspect , the data input area is formed in a rectangular shape so as to have a plurality of corners, and the cursor moving means is located at the reading position. The cursor is moved to the data input area having the corner closest to the corresponding position in the display area.

According to a fifth aspect of the present invention, in the optical information reading device according to any one of the first to fourth aspects, the predetermined area is similar to the display area.

A sixth aspect of the present invention is the optical information reading device according to any one of the first to fifth aspects, wherein a mode switching code is displayed on the position information code display means, and from the mode switching code. The reflected light is received by the light receiving means and read by the reading means, thereby switching between a cursor movement mode in which the cursor is moved by the cursor moving means and an information input mode in which information is input to the moved cursor position. A possible mode switching means is provided.

  According to the first aspect of the present invention, there is provided position information code display means for displaying a plurality of position information codes arranged in a predetermined area and having position information relating to positions arranged with respect to the predetermined area. When at least one of the position information codes is read by the reading unit, a reading position for a predetermined area is calculated based on the position information of the position information code. Then, by associating the positional relationship between the predetermined area and the display area, the cursor is moved to a position in the display area corresponding to the reading position calculated as described above (hereinafter also referred to as an information input position).

As a result, when the operator moves the cursor to a desired position in the display area, the operator simply reads the position information code in the predetermined area corresponding to the desired position in the display area. The cursor can be moved to the information input position corresponding to the position, that is, the desired position. For example, when the cursor is moved to the upper right of the display area, the cursor is moved to the upper right of the display area which is a desired position by reading the upper right position information code in the predetermined area in the position information code display means. be able to.
Therefore, the cursor can be easily moved to a desired position in the display area.

In particular , the center position of the illumination light obtained from the position information of the position information code read by the reading means and the position occupied by the position information code with respect to the illumination light in a predetermined area is calculated as the reading position. .

  By determining which position of the reflected light the read position information code occupies, the position that the position information code occupies in the predetermined area with respect to the illumination light can be obtained. The center position of the illumination light, that is, the center position of the illumination light within a predetermined region can be obtained. Therefore, by setting the center position of the illumination light as the reading position, the cursor can be moved closer to the desired position as compared with the case where the position of the read position information code is set as the reading position. .

In the invention of claim 2 , when reflected light from at least two of each position information code is received and read, the position information of each of the two position information codes and the both position information codes are in a predetermined area. The center position of the illumination light is calculated as the reading position from the position occupied by the illumination light.

  When the center position of the illumination light is obtained based on the position information of one position information code, the illumination light irradiated with respect to the arrangement direction (reading direction) of the position information code is within the range where the position information code can be read. If it tilts over a predetermined area, the degree of tilt cannot be estimated from the bar width of the decoding result, so it may be difficult to accurately determine the center position of the illumination light. Accordingly, by obtaining the center position of the illumination light from the position information of at least two position information codes, the inclination degree is obtained, so that the center position of the illumination light can be obtained more accurately.

In the invention of claim 3 , the information display means displays a plurality of data input areas in which input information can be input by moving the cursor by the cursor moving means. Thus, a plurality of data displayed on the information display means can be displayed by selecting any one of the data input areas based on the information input position calculated as described above and moving the cursor to the selected data input area. The desired data input area can be easily selected.

In the invention of claim 4 , the data input area is formed in a rectangular shape so as to have a plurality of corners, and the cursor moving means has a corner closest to the position in the display area corresponding to the reading position. Move the cursor to the data input area with Thereby, the selection of the data input area based on the information input position calculated as described above can be easily performed.

In the invention of claim 5 , since the predetermined area on the position information code display means is similar to the display area on the information display means, the desired cursor position and reading position visually desired by the operator can be obtained. Therefore, the information input position calculated as described above can be made closer to the desired position.

According to the sixth aspect of the present invention, since the cursor movement mode and the information input mode can be switched by reading the mode switching code, it is easy compared to the case where a switch for switching between the two modes is separately provided and operated. Thus, the mode can be switched, and an increase in the number of parts can be suppressed.

It is a front view which shows schematic structure of the optical information reader which concerns on this embodiment. FIG. 2 is a block diagram illustrating an electrical configuration of the optical information reading device in FIG. 1. It is a flowchart which illustrates the flow of the information input process in this embodiment. It is explanatory drawing which shows each position information code arrange | positioned in the predetermined area | region of a paper. It is explanatory drawing which shows the state by which illumination light was irradiated to the predetermined area | region of the paper. It is explanatory drawing for demonstrating the movement of a cursor. It is explanatory drawing for demonstrating the reading position calculating process which concerns on the 1st modification of this embodiment. It is explanatory drawing for demonstrating the display area which concerns on the 2nd modification of this embodiment. It is explanatory drawing for demonstrating the paper which concerns on the 3rd modification of this embodiment.

[First Embodiment]
Hereinafter, an embodiment of an optical information reading apparatus according to the present invention will be described with reference to the drawings.
An optical information reader 10 shown in FIG. 1 is a portable code reader that reads an information code such as a one-dimensional code or a two-dimensional code such as a barcode, and is used to configure a code reader in a housing 11. The circuit unit 20 and the like are accommodated. A liquid crystal display 46 having a display screen and a keyboard 49 for ten-key input are provided on the top surface of the housing 11. In addition, trigger switches 42 for instructing reading are provided on both side surfaces of the housing 11.

  As shown in FIG. 2, the circuit unit 20 mainly includes an optical system such as an illumination light source 21, a light receiving sensor 28, and an imaging lens 27, and a microcomputer such as a memory 35, a control circuit 40, and a trigger switch 42 (hereinafter “ A system called "microcomputer").

  The optical system is divided into a light projecting optical system and a light receiving optical system. The illumination light source 21 constituting the light projecting optical system functions as an illumination light source capable of emitting the illumination light Lf, and includes, for example, a red LED and a lens provided on the emission side of the LED. FIG. 2 conceptually shows an example in which the illumination light Lf is irradiated toward the article R to which the information code B is attached. The illumination light source 21 and the illumination light Lf can correspond to an example of “illumination means” and “illumination light” recited in the claims.

  The light receiving optical system includes a light receiving sensor 28, an imaging lens 27, a reflecting mirror (not shown), and the like. The light receiving sensor 28 is configured as a CCD area sensor, and is configured to be able to receive reflected light Lr irradiated and reflected on the information code B. The light receiving sensor 28 is mounted on a printed wiring board (not shown) so as to be able to receive incident light incident through the imaging lens 27. The light receiving sensor 28 may correspond to an example of “light receiving means” recited in the claims.

  The imaging lens 27 functions as an imaging optical system capable of condensing incident light incident from the outside through the reading port 13 and forming an image on the light receiving surface 28a of the light receiving sensor 28. In this embodiment, after the illumination light Lf emitted from the illumination light source 21 is reflected by the information code B, the reflected light Lr is collected by the imaging lens 27 and a code image is formed on the light receiving surface 28 a of the light receiving sensor 28. The image is formed.

  The microcomputer system includes an amplification circuit 31, an A / D conversion circuit 33, a memory 35, an address generation circuit 36, a synchronization signal generation circuit 38, a control circuit 40, a trigger switch 42, a light emitting unit 43, a buzzer 44, a vibrator 45, and a liquid crystal display. 46, a communication interface 48, a keyboard 49, and the like.

  The image signal (analog signal) output from the light receiving sensor 28 of the optical system is amplified by a predetermined gain by being input to the amplifier circuit 31, and then input from the analog signal when input to the A / D conversion circuit 33. Converted into a digital signal. When the digitized image signal, that is, image data (image information) is generated and input to the memory 35, it is stored in a predetermined code image information storage area. The synchronization signal generation circuit 38 is configured to generate a synchronization signal for the light receiving sensor 28 and the address generation circuit 36, and the address generation circuit 36 is based on the synchronization signal supplied from the synchronization signal generation circuit 38. Thus, the storage address of the image data stored in the memory 35 can be generated.

  The control circuit 40 is configured by a microcomputer that can control the entire optical information reader 10, has a CPU, a system bus, an input / output interface, and the like, has an information processing function, and has an information processing device together with the memory 35. Is configured. In the first embodiment, a trigger switch 42, a light emitting unit 43, a buzzer 44, a vibrator 45, a liquid crystal display 46, a communication interface 48, a keyboard 49, and the like are connected to the control circuit 40.

  As a result, the control circuit 40 can, for example, turn on / off the light emitting unit 43 that functions as an indicator for notifying information related to monitoring and management of the trigger switch 42 and reading of the information code B, and a buzzer that can generate a beep sound and an alarm sound. Communication that enables ON / OFF of ringing 44, drive control of the vibrator 45 capable of generating vibration that can be transmitted to the user of the optical information reader 10, display control of the liquid crystal display 46, and serial communication with an external device Communication control of the interface 48, processing of input signals from the keyboard 49, and the like are enabled.

  In particular, the liquid crystal display 46 is controlled by the control circuit 40. For example, as will be described later, the content of the information code B is displayed on the display screen when decoding is successful, and predetermined information on the display screen is displayed together with predetermined information during information input processing. The display prompts the user to input information at the position. The liquid crystal display 46 may correspond to an example of “information display unit” recited in the claims.

The reading process of the optical information reading apparatus 10 configured as described above is performed as follows.
For example, when a power switch (not shown) is turned on and a predetermined self-diagnosis process or the like is normally completed and the information code B can be read, an input of the trigger switch 42 that instructs to emit the illumination light Lf is accepted . In such a state, when an operator presses one of the trigger switches 42 to turn it on, the control circuit 40 outputs a light emission signal to the illumination light source 21 with the synchronization signal as a reference. The illumination light source 21 that has received the light emission signal emits the LED to emit the illumination light Lf. The illumination light Lf is applied to the information code B through the reading port 13.

  Then, the illumination light Lf applied to the information code B is reflected, and the reflected light Lr enters the housing 11 through the reading port 13. When the reflected light Lr reaches the light receiving surface 28a of the light receiving sensor 28 via the imaging lens 27, an image of the information code B, that is, a code image is formed on the imaging region of the light receiving surface 28a. Become. Thereby, each light receiving element constituting the light receiving sensor 28 is exposed, a light receiving signal corresponding to the image of the information code B is output from each light receiving element, and image data is generated and stored in the memory 35. Then, after the code image stored in the memory 35 is binarized, a known decoding process is performed, and character data encoded as the information code B is decoded (decoded). When decoding is successful, a notification output indicating that (for example, “OK” characters, a short beep or a green light), and when decoding fails, a notification output indicating that (for example, "NG", long beep sound and red light) are output by the liquid crystal display 46, the buzzer 44 and the vibrator 45 to notify the user of the optical information reader 10 whether or not the information code B can be read. . If the decoding is successful, the decoded data, that is, the content of the information code B is output to the liquid crystal display 46 or to the host computer (not shown) or the like via the communication interface 48. The control circuit 40 that executes the reading process may correspond to an example of a “reading unit” recited in the claims.

Next, an information input process for inputting information to a predetermined position on the display screen of the liquid crystal display 46, which is a characteristic part of the present invention, will be described with reference to the drawings.
In the information input process, a cursor movement mode for moving the cursor K indicating the input position where the input information is displayed, and an information input mode for inputting predetermined information at the position of the cursor K moved in this cursor movement mode Are configured to be switchable. Hereinafter, the information input process executed by the control circuit 40 will be described in detail with reference to the flowchart of FIG.

  When the information input process is started by the control circuit 40, the information input mode is shifted to a display area 46a of the display screen of the liquid crystal display 46 in which a display for prompting information input together with predetermined information is made. In this information input mode, it is determined whether or not the cursor movement mode has been switched in step S101 of FIG. In the present embodiment, for example, the cursor movement mode and the information input mode are switched by pressing a predetermined key of the keyboard 49. Until the predetermined key is pressed in the information input mode, The determination of No is repeated in step S101.

  When the predetermined key is pressed (Yes in S101), the cursor is switched from the information input mode to the cursor movement mode, and the image data generation process is performed in step S103. The illumination light Lf is the same as in the reading process. When the image data is generated in response to the reception of the reflected light Lr, a decoding process is performed in step S105, and the information code included in the image data is decoded.

  Next, in step S107, it is determined whether or not the information code decoded in step S105 is the position information code C. Here, the position information code C is a code that is displayed and arranged in a predetermined area 51 that is partitioned on the surface of the paper 50 prepared in advance, and each position information code C is a predetermined code. The position information regarding the position arranged with respect to the area 51 is individually provided. In the present embodiment, as illustrated in FIG. 4, the predetermined area 51 is formed in a similar shape to the display area 46 a of the display screen in the liquid crystal display 46, and 12 rows are included in the predetermined area 51. Six columns of bar codes are arranged as position information codes C, respectively. The sheet 50 may correspond to an example of “position information code display unit” recited in the claims.

  Here, when the information code decoded in step S105 is not the position information code C, or when the decoding fails (No in S107), the processing from step S103 is performed. On the other hand, if at least one of the information codes decoded in step S105 is the position information code C, Yes is determined in step S107.

  Subsequently, in step S109, a reading position calculation process is performed. In this process, the center position Lo of the illumination light Lf irradiated to the predetermined area 51 for reading the position information code C is calculated as a reading position. As shown in FIG. 5, in this reading position calculation process, the reflected light Lr generated by the illumination light Lf is received to receive the third row and fifth column position information code C35 and the third row and sixth column position information code. The following description will be made assuming that C36 is read.

  In this calculation process, first, the position information code C35 and the position information code C36 in the illumination light Lf are read from the bar width information, illumination light Lf, and the like obtained from the image data generated in step S103. Therefore, the center position Lo of the illumination light Lf with respect to at least one of the position information code C35 and the position information code C36 is relatively obtained. Then, based on at least one of the position information of the position information code C35 obtained by decoding in step S105 and the position information of the position information code C36, the center position Lo of the illumination light Lf with respect to the predetermined area 51 is obtained. Is calculated as a reading position.

  When the reading position is calculated as described above, a cursor movement process is performed in step S111. In this processing, the cursor K moves to a position (information input position) in the display area 46a corresponding to the reading position (center position Lo) by associating the positional relationship between the predetermined area 51 and the display area 46a. For example, when the cursor K is moved near the upper right of the display area 46a, the position information codes C35 and 36 near the upper right in the predetermined area 51 are read as shown in FIG. The cursor K moves to the vicinity of the upper right of the display area 46a.

  When the cursor K moves to the information input position in the display area 46a according to the reading position as described above, it is determined in step S113 whether or not the information input mode is set. Here, since the position of the moved cursor K is a desired position, when the predetermined key is pressed again, it is determined Yes in step S113 and the cursor movement mode is switched to the information input mode. Then, input processing is performed in step S115, and predetermined information can be input to the position of the cursor K in accordance with the operation of the keyboard 49 or the like. On the other hand, when the switching operation to the information input mode is not performed for a predetermined time in order to change the position of the moved cursor K (No in S113), the processing from Step S103 is performed.

  After the predetermined information is input to the position of the cursor K in step S115, when the predetermined key is pressed again to input the predetermined information to another position in the display area 46a, the process proceeds to step S117. Yes, and the processing from step S103 is performed. Further, when the input of all information is completed because predetermined information is input to the position of the cursor K in step S115, it is determined Yes in step S119, and the information input process is ended.

  As described above, in the optical information reading apparatus 10 according to the present embodiment, the position information code C that is disposed in the predetermined area 51 and has position information related to the position disposed with respect to the predetermined area 51 is provided. A plurality of sheets 50 to be displayed are prepared in advance. When at least one of the position information codes C is read, the center position Lo of the illumination light Lf with respect to the predetermined region 51 is calculated as a reading position based on the position information of the position information code C. Then, by associating the positional relationship between the predetermined area 51 and the display area 46a, the cursor K is moved to the information input position in the display area 46a corresponding to the reading position (center position Lo) calculated as described above. .

  Thereby, when the operator moves the cursor K to a desired position in the display area 46a, the illumination light Lf is irradiated into the predetermined area 51 corresponding to the desired position in the display area 46a. By simply reading the position information code C, the cursor K can be moved to the information input position corresponding to the reading position (center position Lo), that is, the desired position. Therefore, the cursor K can be easily moved to a desired position in the display area 46a.

  In particular, the center position Lo of the illumination light obtained from the position information of the read position information code C and the position occupied by the position information code C with respect to the illumination light Lf in the predetermined region 51 is used as the reading position. Since the calculation is performed, for example, the cursor K can be moved closer to the desired position as compared with the case where the position of the read position information code C is set as the reading position.

  Further, in the optical information reading apparatus 10 according to the present embodiment, the predetermined area 51 on the paper 50 is similar to the display area 46a of the display screen in the liquid crystal display 46, so that the operator is visually informed. Since the desired cursor position desired by the user can be easily associated with the reading position, the information input position calculated as described above can be made closer to the desired position.

FIG. 7 is an explanatory diagram for explaining a reading position calculation process according to the first modification of the present embodiment.
As an optical information reading apparatus according to the first modification of the present embodiment, in the reading position calculation process in step S109 described above, the center position Lo of the illumination light Lf with respect to the predetermined area 51 is calculated as follows. Good.

  Specifically, for example, as shown in FIG. 7, since the illumination light Lf is inclined with respect to the arrangement direction of the position information code C, the position information code C13 in the first row and third column and the second row and first column The case will be described below assuming that the position information code C21 is read.

  In this case, first, from the bar width information obtained from the image data generated in step S103, the illumination light Lf, and the like, it is known at which position of the illumination light Lf the position information code C13 and the position information code C21 are read. The center position Lo of the illumination light Lf with respect to the two position information codes of the position information code C13 and the position information code C21 is obtained relatively. At this time, since the relative position of the center position Lo is obtained from the two position information codes, the degree of inclination can be obtained even when the illumination light Lf is inclined with respect to the arrangement direction (reading direction) of both position information codes. The relative position of the center position Lo can be accurately obtained. Thereby, based on the relative position of the center position Lo and the two position information of the position information code C13 and the position information code C21 obtained by decoding in step S105, the illumination light Lf for the predetermined region 51 is obtained. Can be accurately calculated as the reading position.

FIG. 8 is an explanatory diagram for explaining a display area 46a according to a second modification of the present embodiment.
As an optical information reading apparatus according to the second modification of the present embodiment, as shown in FIG. 8, input information is input by moving the cursor K to the display area 46 a of the display screen in the liquid crystal display 46. A plurality of possible rectangular data input areas S1 to S8 may be displayed. Accordingly, by selecting any one of the data input areas S1 to S8 based on the information input position calculated as described above and moving the cursor K to the selected data input area S, the display area 46a It is possible to easily select a desired one of the plurality of data input areas S1 to S8 displayed on the screen. In FIG. 8, the cursor K is moved to the data input area S6.

  In particular, each of the data input areas S1 to S8 is formed in a rectangular shape so as to have a plurality of corners. For example, the cursor K is placed on the data input area S having a corner closest to the information input position. By moving it, the data input area S can be easily selected. Further, for example, the cursor K may be moved to the data input area S closest to the information input position with reference to the center position of each data input area S.

FIG. 9 is an explanatory diagram for explaining a main part of the optical information reading apparatus according to the third modification of the present embodiment.
A sheet 50a shown in FIG. 9 may be employed as the position information code display unit according to the third modification of the present embodiment. The sheet 50a is provided with a mode switching code Co that is read when the cursor movement mode and the information input mode are switched outside the predetermined area 51 with respect to the sheet 50 described above. As a result, when switching between these modes, it is only necessary to read the mode switching code as compared with the case where the predetermined key is pressed as described above. An increase in the number of parts due to the separate use of the key can also be suppressed.

  The mode switching code Co may be used as a mode switching code that is read when switching between the mode for executing the information input process (information input mode) and the mode for executing the reading process (reading mode). Good. As a result, when switching between these modes, it is only necessary to read the mode switching code as compared with the case where a dedicated key or the like separately provided for switching between the two modes is operated. It is also possible to suppress an increase in the number of parts due to the use of the dedicated key or the like.

In addition, this invention is not limited to the said embodiment, You may actualize as follows, and even in that case, an effect | action and effect equivalent to the said embodiment are acquired.
(1) Each position information code C is not limited to being arranged in the predetermined area 51 of the paper 50. For example, the position information code display means uses another liquid crystal display as a position information code display means. On the other hand, a plurality may be arranged in the predetermined region 51. Further, each position information code C is not limited to being arranged in 12 rows and 6 columns in the predetermined area 51 as shown in FIG. 4, but more position information codes are provided in order to improve the calculation accuracy of the reading position. C may be arranged, or may be arranged as m rows and n columns (m and n are arbitrary natural numbers) according to the corresponding display area 46a. In addition, each position information code C is randomly arranged in the predetermined area 51 on the assumption that the position information code C has accurate position information for the predetermined area 51 without being arranged in m rows and n columns. It may be arranged.

(2) Each position information code C is not limited to a barcode, but may be an information code such as a two-dimensional code having position information for a predetermined area 51.

(3) In step S109, when the number of arrangement of the position information code C in the predetermined area 51 is small, the read position information code is not limited to the calculation of the center position Lo of the illumination light Lf as the reading position. The position of C with respect to the predetermined area 51 may be calculated as the reading position.

DESCRIPTION OF SYMBOLS 10 ... Optical information reader 21 ... Illumination light source 28 ... Light receiving sensor 40 ... Control circuit 46 ... Liquid crystal display 46a ... Display area 50 ... Paper (position information code display means)
51 ... predetermined area C ... position information code K ... cursor Lf ... illumination light Lo ... center position

Claims (6)

An illumination means for illuminating the information code with illumination light;
A light receiving means for receiving reflected light from the information code;
Reading means for optically reading the information code based on a light receiving signal from the light receiving means;
An information display means that has a display area capable of displaying a plurality of information and that displays a cursor indicating an input position where the input information is displayed in the display area;
An optical information reader comprising:
A position information code display means for displaying a plurality of position information codes arranged in a predetermined area and having position information relating to positions positioned with respect to the predetermined area;
A reading position calculating means for calculating a reading position for the predetermined area based on the position information of the position information code when at least one of the position information codes is read by the reading means;
A cursor moving means for moving the cursor to a position in the display area corresponding to the reading position by associating a positional relationship between the predetermined area and the display area;
Equipped with a,
The reading position calculating means includes
The position information read by the reading means when the reflected light from the illumination light and at least one of the position information codes is received by the light receiving means by the illumination light applied to the predetermined area. and the position information of the code, the position information code is characterized that you calculated as the reading position and the position occupied with respect to the illumination light, the central position of the illumination light obtained from by said predetermined area Optical information reader. An illumination means for illuminating the information code with illumination light;
A light receiving means for receiving reflected light from the information code;
Reading means for optically reading the information code based on a light receiving signal from the light receiving means;
An information display means that has a display area capable of displaying a plurality of information and that displays a cursor indicating an input position where the input information is displayed in the display area;
An optical information reader comprising:
A position information code display means for displaying a plurality of position information codes arranged in a predetermined area and having position information relating to positions positioned with respect to the predetermined area;
A reading position calculating means for calculating a reading position for the predetermined area based on the position information of the position information code when at least one of the position information codes is read by the reading means;
A cursor moving means for moving the cursor to a position in the display area corresponding to the reading position by associating a positional relationship between the predetermined area and the display area;
With
The reading position calculating means includes
When the reflected light from the illumination light and at least two of the position information codes is received by the light receiving means by the illumination light irradiated on the predetermined area, the two position information read by the reading means each of said position information of the code, that the two position information code is calculated as the reading position and the position occupied by each pressurized et the center position of this illumination light to the illumination light at the predetermined area light anatomical information reader you characterized. Wherein the information display unit, according to claim 1 or 2 more data input area in which the input information is enabled input by the cursor is moved by the cursor moving means and said Rukoto appears Optical information reader. The data input area is formed in a rectangular shape having a plurality of corners,
The cursor movement means, optical of claim 3, wherein Rukoto moving the cursor to the data input area with the closest the corner portion with respect to the position in the display area corresponding to the reading position Information reader. The predetermined area, the optical information reading apparatus according to any one of claims 1 to 4, characterized in similar shape der Rukoto to the display area. The position information code display means displays a mode switching code,
The reflected light from the mode switching code is received by the light receiving means and read by the reading means, whereby information is input to the cursor movement mode in which the cursor is moved by the cursor moving means and the moved cursor position. optical information reading apparatus according to any one of claims 1 to 5, wherein the Rukoto includes a mode switching means capable of switching an information input mode.

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