JP6930252B2 - Optical information reader - Google Patents

Description

The present invention relates to an optical information reader.

Currently, optical information readers that optically read information codes such as barcodes and QR codes (registered trademarks) displayed on display media are widely provided, and stationary optics used in stores and business establishments. As a target information reading device, for example, a stationary information code reading device disclosed in Patent Document 1 below is known. This stationary information code reading device is configured such that a reading port is formed in the central portion of the upper surface of the case, and an imaging unit or the like is housed inside the case so that the outside can be imaged through the reading port. Then, when the information code is held over the reading port, the information code is imaged by the imaging unit, and the captured code image is decoded by a known decoding method.

Japanese Unexamined Patent Publication No. 2014-219996

In particular, in recent years, as an optical information reader, not only reading an information code but also reading a wide variety of optical information displayed on a display medium, such as reading a passport using an OCR function, has been required. There is. By the way, in order to read such a wide variety of optical information, it is necessary to prepare a plurality of reading modes suitable for the optical information, and further, an operation unit for switching the reading mode and the switched reading. It is necessary to provide a display unit or the like for displaying the mode status and the reading result.

In order to ensure the operability of the operation unit and the visibility of the display unit, it is necessary to dispose of it on the upper surface of the housing constituting the outer shell of the optical information reading device. A reading port is provided to ensure reading workability. For this reason, simply providing a reading port, an operation unit, and a display unit on the upper surface of the housing causes a problem that the size of the housing increases, and if the size of the housing is reduced in order to solve this problem, the passport Another problem arises that it becomes difficult to hold a large display medium such as the above.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a configuration capable of miniaturizing a housing while making it easy to hold a display medium over a reading port. ..

In order to achieve the above object, the optical information reader (10) according to claim 1 of the claims is
A housing (11) in which a rectangular reading port (14) is formed on the upper surface (11a), and
An imaging unit (23) that images the display surface (61) of the display medium (60) that is arranged in the housing and is held by the reading port.
A reading unit (40) that reads predetermined information displayed on the display surface based on the imaging result of the imaging unit, and
An operation unit (42) that can be operated externally
A display unit (43) capable of displaying the reading result by the reading unit, and
With
The upper surface is composed of the reading port and one end portion (15) connected to one side of the reading port.
The operation unit and the display unit are arranged at one end of the operation unit and the display unit.
The operation unit is configured by using a touch switch.
A protective plate that covers the reading port and one end thereof is provided.
The operation unit has a substrate on which a detection electrode for detecting a touch via the protective plate is formed, and a part of the housing is interposed between the detection electrode and the protective plate. It is characterized by being arranged.
The reference numerals in the parentheses indicate the correspondence with the specific means described in the embodiments described later.

In the invention of claim 1, the upper surface of the housing is composed of a rectangular reading port and one end portion connected to one side of the reading port, and an operation unit and a display unit are arranged at one end. As a result, the portion of the upper surface of the housing excluding one end where the operation unit and the display unit are arranged becomes the reading port. Therefore, for example, the operation unit and the display unit interposed the reading port with respect to the upper surface of the housing. Since the upper surface of the housing that can be used as a rectangular reading port is wider than that of the case where the reading port is arranged so as to be rectangular, the display medium can be secured by securing a reading port having a required size as a rectangular shape. It is possible to reduce the size of the housing while making it easy to hold it over the reading port. In particular, since the side of the four sides of the reading port facing one side in which one end is continuous corresponds to one edge of the upper surface of the housing, the display surface displaying predetermined information is displayed so as to be one side of the spread. When the medium is to be read, the display on the reading port is displayed by holding the display surface of the display medium over the reading port so that the boundary portion between one side and the other side is aligned with one edge of the upper surface. Not only can the misalignment of the surface be suppressed, but it becomes difficult for the display surface to cover one end. Therefore, it is possible to secure the operability of the operation unit and the visibility of the display unit while ensuring the reading workability.
Since the operation unit is configured by using a touch switch, steps and gaps can be eliminated as the operation unit as compared with the case where the operation unit is configured by using a push button or the like, and maintenance such as cleaning is facilitated. Can be planned.
In particular, a protective plate is provided to cover the reading port and one end, and the operation unit has a substrate on which a detection electrode for detecting a touch via the protective plate is formed, and a part of the housing is detected. It is arranged so as to be interposed between the electrode and the protective plate. As a result, the electrostatic resistance of the operating portion can be increased according to the thickness of a part of the intervening housing. In particular, even if the thickness of a part of the housing is reduced in order to maintain the sensitivity of the operation unit, static electricity or the like applied from the protective plate side passes through the part of the housing to other parts of the housing. Therefore, it is possible to improve the static electricity resistance without impairing the sensitivity of the operation unit.

In the invention of claim 2 , the display medium is a passport, and the reading port is formed so as to match the display surface of the passport. As a result, the display surface of the passport displaying the predetermined information to be read becomes one side of the spread and fits the reading port, and the display surface of the passport is adjusted so that the boundary portion is aligned with one edge of the upper surface. By holding it over the reading port, only the reading port is covered by the display surface and one end is not covered. Therefore, it is possible to ensure the operability of the operation unit and the visibility of the display unit while ensuring the readability of the passport.

It is a perspective view which shows the optical information reading apparatus which concerns on 1st Embodiment. It is a top view of the optical information reading apparatus of FIG. FIG. 5 is a schematic cross-sectional view schematically showing an XX cross section of the optical information reader of FIG. 2. It is an enlarged cross-sectional view which shows the positional relationship between the extension piece, a protective plate and a detection electrode. FIG. 5 is a block diagram schematically illustrating an electrical configuration of the information reader of FIG. 1. It is explanatory drawing which shows the display state of the display surface in a passport. It is a perspective view which shows the state which held the display surface of a passport in contact with a reading port. It is a top view which shows the optical information reading apparatus which concerns on the modification of this embodiment.

[First Embodiment]
Hereinafter, the optical information reading device according to the first embodiment of the present invention will be described with reference to the drawings.
The optical information reading device 10 shown in FIGS. 1 and 2 and the like is a stationary reading device mounted on the mounting surface with the upper surface of a desk, a shelf, or the like as the mounting surface, and is an imaged display medium. It is configured as a captured image storage device capable of not only reading the information of the above but also storing the captured image of the display medium. In the present embodiment, a display medium in which predetermined information, an information code, or the like using a specific character format is displayed on a display surface is targeted for imaging. Therefore, the optical information reading device 10 optically captures the captured optical information such as a known symbol recognition processing function (OCR) for recognizing captured character information and a function as an information code reader for reading the captured information code. It is configured to have a function of reading a character (optical information reading means).

In the present embodiment, as a display medium on which predetermined information or the like is displayed on a display surface using a specific character format, for example, a passport (passport) 60 as illustrated in FIG. 6 is assumed. As shown in FIG. 6, the passport 60 has a spread page (hereinafter, also referred to as a display surface 61) of identification items on which a face photograph is displayed based on the standard of Doc9303 issued by the International Civil Aviation Organization (ICAO). It is configured to be on one side. Passport information 61a using the determined specific character format is displayed in the determined area, which is the lower column of the display surface 61. Then, when the optical information reading device 10 functions as a captured image storage device, an image storage process for storing the captured image captured by the display surface 61 is performed. As the information code, for example, a known code in which a plurality of types of cells such as a one-dimensional code such as a barcode and a two-dimensional code such as a QR code (registered trademark) are arranged is assumed. Therefore, in the present embodiment, a passport reading mode in which the display surface 61 of the passport 60 is imaged to recognize the passport information 61a, an information code reading mode in which the information code is optically read, a driver's license that does not require character recognition, and the like are imaged. At least three modes, such as a driver's license reading mode, for saving the image are switchable.

The optical information reading device 10 includes a housing 11 that constitutes the outer shell of the optical information reading device 10 with a resin material such as ABS resin. As shown in FIG. 1 and the like, the housing 11 includes an upper case 12 and a lower case 13, and the upper case 12 and the lower case 13 are vertically assembled to form a substantially box shape as a whole. Has been done. Inside the housing 11, each component such as an illumination light source 21, an imaging unit 27, an imaging unit 23, and a reflecting member 50, which will be described later, is housed.

As shown in FIG. 2 and the like, a reading port 14 serving as an entrance / exit for light is formed in a rectangular shape on the upper surface 11a of the housing 11, and light from outside the housing enters the housing through the reading port 14. Light from inside the housing is emitted to the outside of the housing. Then, the optical system composed of the imaging unit 27 and the imaging unit 23 functions to image the display medium held over the reading port 14.

The upper surface 11a of the housing 11 is composed of a reading port 14 and a strip-shaped one end portion 15 connected to one side 14a of the reading port 14, and is protected by a protective plate 16. The protective plate 16 is configured as a flat plate having a predetermined thickness, and is a light-transmissive member (for example, transparent acrylic resin, transparent glass, etc.) capable of transmitting light from outside the housing and light from inside the housing. ). Further, an operation unit 42, a display unit 43, and the like, which will be described later, are arranged at one end portion 15.

The side 14b facing one side 14a of the four sides of the reading port 14 corresponds to one edge of the upper surface 11a of the housing 11, and the other two sides 14c and 14d of the four sides of the reading port 14 also correspond to the upper surface 11a of the housing 11. Corresponds to each of the other edges. Therefore, as shown in FIG. 2, the width of the three edge portions surrounding the reading port 14 excluding the one end portion 15 of the upper surface 11a is substantially equal to the thickness of the main body portion 12a formed in the square ring shape of the upper case 12. Formed to be equal. That is, the upper surface 11a is formed so that the width of each edge portion along the sides 14b to 14d is smaller than that of the one end portion 15.

The reading port 14 is formed so as to match the display surface 61 of the passport 60. Specifically, the reading port 14 is formed so that the distance between the other two sides 14c and 14d substantially matches the width W (see FIG. 6) of the display surface 61. Further, a portion between the display surface 61 and the other side 62 which is one side of the spread is defined as a boundary portion 63 (see FIG. 6), and as shown in FIG. 7, the boundary portion 63 is designated as a boundary portion 63. When the display surface 61 of the passport 60 is held so as to be in contact with the reading port 14 so as to be aligned with one edge of the upper surface 11a, the reading port 14 has the lower edge 61b of the display surface 61 substantially aligned with the side 14a. Is formed in.

The height of the lower case 13 is set to be suitable for reading the passport 60. Specifically, the bottom surface 13a of the lower case 13 is provided with a plurality of legs that come into contact with the mounting surface at the time of mounting, and as shown in FIG. 7, the lower case 13 has the boundary portion 63 on the upper surface. When the display surface 61 of the passport 60 is held so as to be in contact with the reading port 14 so as to match one edge of 11a, the height of one edge 62a of the other side 62 reaches the bottom surface 13a and does not reach the mounting surface. It is formed to be.

Next, the electrical configuration of the optical information reading device 10 will be described. As shown in FIG. 5, the optical information reading device 10 mainly includes an optical system such as an illumination light source 21, an imaging unit 27, and an imaging unit 23, and a microcomputer such as a memory 35 and a control circuit 40 (hereinafter, “microcomputer”). ”) And a power supply system such as a power supply unit and power switch (not shown).

The optical system is divided into a light projecting optical system and a light receiving optical system. The illumination light source 21 constituting the projection optical system functions as a surface light source capable of irradiating uniform illumination light. The illumination light source 21 is arranged below one end portion 15 and is configured to irradiate a uniform illumination light toward the reflection member 50. As a result, even when the reflecting member 50 enters the visual field range of the imaging unit 23 due to the reflection by the protective plate 16, the reflecting member 50 becomes evenly bright, so that the influence of the reflection of the reflecting member 50 can be suppressed.

Further, as shown in FIGS. 1 to 3, the projection optical system includes a reflection member 50 that reflects and guides the light from the illumination light source 21. The reflecting member 50 is arranged inside the housing 11 at a position where the illumination light from the illumination light source 21 is irradiated, and the illumination light from the illumination light source 21 is irradiated to the outside of the housing 11 through the reading port 14. It is structured to guide you. The reflection member 50 includes a first reflection unit 51, a second reflection unit 52, and a third reflection unit 53, and since the illuminance on the outer edge side of the reading port 14 is higher than the illuminance on the center side of the reading port 14, each of them It is formed to be curved so as to be convex in the direction away from the illumination light source 21. Specifically, as shown in FIG. 3, the first reflecting portion 51 is formed so as to be curved so that the upper end thereof is continuous with the side 14b of the reading port 14. Further, the second reflecting portion 52 is formed so that the upper end thereof is connected to the side 14c of the reading port 14, and the third reflecting portion 53 is formed so that the upper end thereof is connected to the side 14d of the reading port 14. Further, an opening 54 is formed by the lower ends of the first reflecting portion 51, the second reflecting portion 52, and the third reflecting portion 53, and the opening 54 is formed so as to expose the imaging portion 27. In FIG. 5, the reflection member 50 is not shown for convenience.

As shown in FIGS. 3 and 5, the light receiving optical system includes an imaging unit 23, an imaging unit 27, and the like. The image pickup unit 23 is configured as an image pickup means by, for example, a light receiving sensor (area sensor) in which solid-state image pickup elements (light receiving elements) such as a CCD element and a CMOS element are two-dimensionally arranged, and is surfaced on the image pickup unit 27. A light receiving surface 23a capable of receiving light from the outside of the housing is arranged on the side of the housing. The imaging unit 23 is mounted on a substrate so that the light incident through the reading port 14 can receive the incident light that has passed through the imaging unit 27 and is about to enter the light receiving surface 23a.

The imaging unit 27 is composed of a known imaging lens and functions as an imaging optical system. The imaging unit 27 defines a field of view range that can be imaged by the imaging unit 23, and guides the light that has passed through the reading port 14 from the outside of the housing 11 to the light receiving surface 23a of the imaging unit 23. ing. In particular, the imaging unit 27 is arranged so that the reading port 14 is within the field of view and the reflecting member 50 is outside the field of view except for the reflection by the protective plate 16 and the reflection by the reading target (one point in FIG. 3). See chain line S).

Then, when the image pickup target such as the display surface 61 is arranged in the field of view outside the housing 11, the imaging unit 27 forms an image of the image pickup target on the light receiving surface 23a of the image pickup unit 23. Function. In this configuration, the imaging target can be imaged while irradiating the imaging target with the illumination light emitted from the illumination light source 21 and guided to the outside of the housing by the reflecting member 50, and the imaging unit 27 is the imaging target. Is arranged within the visual field range (in the imaging area), the reflected light Lr from the imaging target is condensed, and the image of the imaging target is imaged on the light receiving surface 23a of the imaging unit 23. There is.

The microcomputer system is composed of an amplifier circuit 31, an A / D conversion circuit 34, a memory 35, an address generation circuit 36, a synchronization signal generation circuit 38, a control circuit 40, and the like. For example, display information captured by the above-mentioned optical system. Etc. are configured to be signal-processed. Specifically, the data of the captured image when the display information or the like arranged in the viewing range is captured by the imaging unit 23 is configured to be storable in the memory 35, and the control circuit 40 has such a display. It is configured to analyze image data such as information and recognize character information or the like using OCR technology. Further, the control circuit 40 functions as an information code reading means for optically reading the information code arranged in the visual field range by analyzing the code image of the information code when the image is captured by the imaging unit 23. It is configured as follows. That is, the control circuit 40 functions as a reading unit that reads predetermined information displayed on the display surface based on the image pickup result by the image pickup unit 23.

Further, as shown in FIG. 5, an operation unit 42, a display unit 43, a speaker 44, a communication interface 48, and the like are connected to the control circuit 40. The operation unit 42 includes a mode changeover switch 42a and a scan switch 42b as touch switches provided so as to be externally operable with respect to one end portion 15, and sends an operation signal to the control circuit 40 according to the operation of the user. The control circuit 40 is configured to give, and when it receives an operation signal from the operation unit 42, it is configured to perform an operation according to the operation signal. The mode changeover switch 42a is configured as a switch operated when switching the above-mentioned passport reading mode, information code reading mode, license reading mode, etc., and the scan switch 42b starts reading in the switched mode. It is configured as a switch that is operated when doing so. When a default display medium such as a passport 60 is detectably held over the reading port 14, the mode is automatically switched to the mode corresponding to the detected display medium without operating the operation unit 42. You may start reading automatically above.

In particular, the mode changeover switch 42a is configured by using a substrate 42c on which a detection electrode 42d for detecting a touch via the protective plate 16 is formed, in order to improve static electricity resistance without impairing its sensitivity. , A part of the housing 11 is arranged so as to be interposed between the detection electrode 42d and the protective plate 16. As illustrated in FIG. 4, a part of the housing 11 has a flat plate shape from one edge of the inner wall of the main body portion 12a formed in the square ring shape of the upper case 12 toward the inside along the mounting surface. It can be configured as an extension piece 12b extending to. The scan switch 42b can be configured in the same manner as the mode changeover switch 42a.

The display unit 43 includes a mode display LED 43a provided at one end 15 and a reading confirmation display LED 43b, and is between the mode changeover switch 42a and the scan switch 42b, and the reading confirmation display LED 43b is the mode display LED 43a. It is arranged so that it is elongated. The display unit 43 is controlled by the control circuit 40 so that the mode display LED 43a lights up so that the switched mode can be identified, and the reading confirmation display LED 43b lights up so that the reading result and the like can be confirmed. Specifically, for example, the mode display LED 43a lights up in green when it is switched to the passport reading mode, lights up in red when it is switched to the information code reading mode, and switches to the license reading mode. When it is set, it lights up in blue and functions as a display unit that can display the switched mode. Further, for example, the reading confirmation display LED 43b lights up in green when it is in a state where it can be read or imaged, lights up in blue when reading is successful, and lights up in red when reading fails, and the reading unit. It functions as a display unit that can display the reading result by.

The speaker 44 is configured as a sounding unit by a known speaker or the like, and various notification sounds such as preset voices and alarm sounds are emitted to one end portion 15 according to an operation signal from the control circuit 40. It is configured to emit sound through the sound port 44a. The protective plate 16 may be formed so as to expose the sound emitting port 44a.

The communication interface 48 is configured as an interface for performing data communication with an external device, and is configured to perform communication processing in cooperation with the control circuit 40.

In the optical information reading device 10 configured as described above, for example, when reading the passport 60, after switching to the passport reading mode by operating the mode changeover switch 42a, the boundary portion is as shown in FIG. The scan switch 42b is operated in a state where the display surface 61 is held so as to be in contact with the reading port 14 so that the 63 is aligned with one edge (14b side) of the upper surface 11a. As a result, the display surface 61 is imaged in a state where the illumination light from the illumination light source 21 reflected by the reflection member 50 is irradiated, and the passport information 61a and the like displayed on the display surface 61 are recognized by using the OCR technology. Will be done.

Further, for example, when reading an information code displayed on a display surface of a predetermined paper or the like as a display medium, the information code on the display surface is read after switching to the information code reading mode by operating the mode changeover switch 42a. The scan switch 42b is operated while being held over the reading port 14. As a result, the display surface is imaged in a state where the illumination light from the illumination light source 21 reflected by the reflection member 50 is irradiated, and the code image of the information code displayed on the display surface is analyzed and the information code is analyzed. The information recorded in is decoded and read.

Further, for example, when the display surface of the driver's license is imaged and saved, the mode changeover switch 42a is operated to switch to the license reading mode, and then the display surface is held over the reading port 14. Operate the scan switch 42b. As a result, the display surface of the driver's license is imaged in a state where the illumination light from the illumination light source 21 reflected by the reflection member 50 is irradiated, and the captured image is stored in the memory 35 or the like.

As described above, in the optical information reading device 10 according to the present embodiment, the upper surface 11a of the housing 11 is composed of a rectangular reading port 14 and one end portion 15 connected to one side 14a of the reading port 14. , The operation unit 42 and the display unit 43 are arranged at one end portion 15. As a result, the portion of the upper surface 11a of the housing 11 excluding the one end portion 15 on which the operation unit 42 and the display unit 43 are arranged becomes the reading port 14. Therefore, for example, the operation unit and the display with respect to the upper surface of the housing 11 Compared with the case where the portions are arranged so as to interpose the reading port, the portion of the upper surface 11a of the housing 11 that can be used as the rectangular reading port 14 is wider, so that the reading is as wide as necessary for the rectangular shape. By securing the port 14, the size of the housing 11 can be reduced while making it easy to hold the display medium over the reading port 14.

In particular, since the side 14b facing the one side 14a in which one end 15 is connected among the four sides of the reading port 14 corresponds to one edge of the upper surface 11a of the housing 11, a display displaying predetermined information like a passport 60 is displayed. When a display medium having one side of the spread as one side is to be read, the display medium is displayed so that the boundary portion between the one side and the other side is aligned with one edge of the upper surface 11a. By holding the surface over the reading port 14, not only the positional deviation of the display surface with respect to the reading port 14 can be suppressed, but also it becomes difficult for the display surface to cover one end portion 15. In the example of the passport 60, by holding the display surface 61 over the reading port 14 so that the boundary portion 63 is aligned with one edge of the upper surface 11a, not only the positional deviation of the display surface 61 with respect to the reading port 14 can be suppressed, but also the display surface can be suppressed. It becomes difficult for 61 to cover one end portion 15. Therefore, it is possible to secure the operability of the operation unit 42 and the visibility of the display unit 43 while ensuring the reading workability.

In particular, the passport 60 is adopted as the display medium, and the reading port 14 is formed so as to match the display surface 61 of the passport 60. As a result, the display surface 61 displaying predetermined information such as the passport information 61a to be read becomes one side of the spread and fits the reading port 14, and the boundary portion 63 is aligned with one edge of the upper surface 11a. By holding the display surface 61 of the passport 60 over the reading port 14, only the reading port 14 is covered by the display surface 61, and one end portion 15 is not covered. Therefore, it is possible to ensure the operability of the operation unit 42 and the visibility of the display unit 43 while ensuring the reading workability of the passport 60.

Further, since the mode changeover switch 42a and the scan switch 42b of the operation unit 42 are configured by using a touch switch, steps and gaps are eliminated as the operation unit as compared with the case where the operation unit 42 is configured by using a push button or the like. It is possible to facilitate maintenance such as cleaning.

Further, a protective plate 16 that covers the reading port 14 and one end portion 15 is provided, and the mode changeover switch 42a and the scan switch 42b of the operation unit 42 have a detection electrode 42d for detecting a touch via the protective plate 16. It has a substrate 42c to be formed, and an extension piece 12b is arranged so as to be interposed between the detection electrode 42d and the protective plate 16 as a part of the housing 11. As a result, the electrostatic resistance of the operation unit 42 can be increased according to the thickness of the intervening extension piece 12b. In particular, even if the thickness of the extension piece 12b is reduced in order to maintain the sensitivity of the operation unit 42, static electricity or the like applied from the protective plate 16 side is applied to the housing such as the main body portion 12a via the extension piece 12b. Since it is easily diffused to other parts of 11, the static electricity resistance can be improved without impairing the sensitivity of the operation unit 42.

The present invention is not limited to the above embodiment, and may be embodied as follows, for example.
(1) The display unit 43 provided at one end portion 15 is not limited to being configured like the mode display LED 43a and the reading confirmation display LED 43b, and is, for example, a liquid crystal display (LCD) as illustrated in FIG. It may be configured as 43c and function to be able to display the switched mode or the reading result by the reading unit.

(2) The optical information reading device 10 according to the present invention is not limited to reading the above-mentioned passport 60, information code, etc., but for example, optical information including other character information is read. May be good. Further, the optical information reading device 10 according to the present invention is not limited to storing the captured image of the display surface 61 of the passport 60, the captured image of the driver's license, and the like described above, and the captured image of another display surface. May be saved.

10 ... Optical information reader 11 ... Housing 11a ... Top surface 14 ... Reading port 15 ... One end 16 ... Protective plate 23 ... Imaging unit 40 ... Control circuit (reading unit)
42 ... Operation unit 43 ... Display unit 60 ... Passport (display medium)
61 ... Display surface

Claims (2)

A housing with a rectangular reading port formed on the upper surface,
An imaging unit that is arranged in the housing and images the display surface of the display medium held by the reading port.
A reading unit that reads predetermined information displayed on the display surface based on the imaging result of the imaging unit.
An operation unit that can be operated externally
A display unit capable of displaying the reading result by the reading unit and a display unit
With
The upper surface is composed of the reading port and one end portion connected to one side of the reading port.
The operation unit and the display unit are arranged at one end of the operation unit and the display unit.
The operation unit is configured by using a touch switch.
A protective plate that covers the reading port and one end thereof is provided.
The operation unit has a substrate on which a detection electrode for detecting a touch via the protective plate is formed, and a part of the housing is interposed between the detection electrode and the protective plate. An optical information reader, characterized in that it is arranged. The display medium is a passport.
The optical information reading device according to claim 1, wherein the reading port is formed so as to match the display surface of the passport.

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