JP2006178647A - Information terminal device - Google Patents

Information terminal device Download PDF

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Publication number
JP2006178647A
JP2006178647A JP2004369672A JP2004369672A JP2006178647A JP 2006178647 A JP2006178647 A JP 2006178647A JP 2004369672 A JP2004369672 A JP 2004369672A JP 2004369672 A JP2004369672 A JP 2004369672A JP 2006178647 A JP2006178647 A JP 2006178647A
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Japan
Prior art keywords
information
antenna
terminal device
control unit
storage medium
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JP2004369672A
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Japanese (ja)
Inventor
Shin Koide
Norio Shimizu
津 小出
徳生 清水
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Olympus Corp
オリンパス株式会社
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Priority to JP2004369672A priority Critical patent/JP2006178647A/en
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Abstract

It is possible to perform good communication with a communication target by exhibiting the original performance of an antenna included in the apparatus.
A control unit that controls at least reading of information or writing of information with an external information storage medium existing in a communicable area, a wiring board on which the control unit is disposed, and a predetermined radio wave A loop-shaped antenna that performs transmission / reception of the antenna, and the control unit is provided in a columnar space having a closed cross-section formed by a loop formed by the antenna as a transverse section.
[Selection] Figure 2

Description

  The present invention reads or stores information stored in an external information storage medium by non-contact communication using a predetermined radio wave with respect to the external information storage medium existing in a communicable area. The present invention relates to an information terminal device that writes information to a computer.

  In recent years, RFID (Radio Frequency Identification) for writing information to a wireless IC (Integrated Circuit) tag, which is an external information storage medium to be communicated by non-contact wireless communication, and for reading information emitted from the wireless IC tag An information terminal device equipped with a function has been proposed (see, for example, Patent Document 1).

  In this information terminal device, for example, when information is written to or read from a wireless IC tag by transmitting and receiving electromagnetic waves (radio waves) having a frequency band near 13.56 MHz, a method using an electromagnetic induction phenomenon (Electromagnetic induction method) is adopted. In this case, when a current flows through a loop-shaped antenna included in the information terminal device, a radio wave having a predetermined frequency is radiated into the air from the antenna. This radiated radio wave generates an induced electromotive force in a loop-shaped antenna provided in the wireless IC tag in the communicable region (about several meters at the above frequency band). The induced electromotive force activates the IC chip in the wireless IC tag, and communication with the information terminal device is performed.

  A technology for applying such a function of an information terminal device to a small mobile terminal such as a mobile phone having a display function or a PDA (Personal Digital Assistants) has also been developed. In this technology, in order to prevent a display unit having a display function from causing erroneous display due to the influence of electromagnetic waves generated from other parts, a shield plate made of metal or the like and shielding electromagnetic waves is provided inside the small portable terminal. Provide.

Japanese Patent Laid-Open No. 11-238103

  In the conventional information terminal device described above, it is assumed that the control unit that controls the operation of the device is always operating. However, the electromagnetic wave generated by the operation of the control unit is a radio wave radiated from the antenna. Therefore, there is a problem that the area communicable with the external information storage medium is narrower than the communicable area based on the original performance of the antenna.

  In addition, when the function of the information terminal device is provided in a small portable terminal, the shield plate for preventing erroneous display attracts radio waves radiated from the antenna, so that the performance inherent in the antenna can be exhibited. There was also a problem of disappearing.

  The present invention has been made in view of the above, and provides an information terminal device that can perform good communication with a communication target by exhibiting the inherent performance of an antenna included in the device. For the purpose.

  In order to solve the above-described problems and achieve the object, the invention according to claim 1 is characterized in that the non-contact communication using a predetermined radio wave is performed on the external information storage medium existing in the communicable area. In an information terminal device that performs at least one of reading information stored in an external information storage medium and writing information to the external information storage medium, a control unit that controls at least reading of the information or writing of the information; A wiring board on which the control unit is disposed; and a loop-shaped antenna that transmits and receives the predetermined radio wave, and the control unit has a cross-section that is a closed plane formed by a loop formed by the antenna. It is located in a columnar space.

  According to a second aspect of the present invention, the information stored in the external information storage medium is read and the external information storage medium is in contactless communication using a predetermined radio wave with respect to the external information storage medium existing in the communicable area. In an information terminal device that performs at least one of writing information to an information storage medium, at least a control unit that controls reading or writing of the information, a wiring board on which the control unit is disposed, and the control unit A shield plate that shields electromagnetic waves generated from the antenna and a loop-shaped antenna that transmits and receives the predetermined radio wave, and the shield plate has a cross-section that is a closed plane formed by a loop formed by the antenna It is located in a columnar space.

  The invention according to claim 3 is the invention according to claim 2, further comprising a display unit for displaying at least information read from the external information storage medium or information to be written to the external information storage medium, and the shield plate is The display unit and the control unit are interposed between the display unit and the control unit.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, further comprising a housing member that houses at least the control unit and the wiring board, and the antenna is arranged in the housing member. It was set up.

  The invention according to claim 5 is the invention according to any one of claims 1 to 3, characterized in that the antenna is arranged on an outer edge portion on the wiring board.

  According to the present invention, the control unit that reads information from or writes information to the external information storage medium is positioned in a columnar space having a closed plane formed by the loop formed by the antenna as a transverse section. Thus, it is possible to perform good communication with the communication target by exhibiting the inherent performance of the antenna included in the device.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

(Embodiment 1)
FIG. 1 is a block diagram showing an outline of a functional configuration of the information terminal apparatus according to Embodiment 1 of the present invention. The information terminal device 1 shown in FIG. 1 reads information stored in an external information storage medium by non-contact communication using a predetermined radio wave with respect to the external information storage medium existing in a communicable area. Or at least information is written to the external information storage medium.

  The information terminal device 1 includes an input unit 2 that receives input of information, an external communication unit 3 that communicates with the outside, a card interface 4 that records information in a predetermined storage medium, an antenna 5 for wireless communication, and an antenna 5. From an RFID processing unit 6 that performs drive control to read and write information to and from an external information storage medium, an optical information reading unit 7 that optically reads information from an optical information recording medium, and an external information storage medium A display unit 8 that displays and outputs read information and information that is written to an external information storage medium, and a voice input / output unit 9 that inputs and outputs voice information are provided. The information terminal device 1 further includes a control unit 10 that controls the functions of the above-described units, and a storage unit 11 that stores a program for performing various processes and data used for the program.

  The input unit 2 receives input of information from a person who uses the information terminal device 1 (hereinafter simply referred to as a user), and sends the input information to the control unit 10. It has a plurality of possible input keys and a plurality of switches that generate signals corresponding to each input key when these input keys are pressed. Information received by the input unit 2 includes information (reading instruction information) that instructs reading of information stored in an external information storage medium such as a wireless IC tag (also referred to as an RF tag or an RFID tag) or a non-contact type IC card. ), Information to be written to the external information storage medium, and instruction information (writing instruction information) for instructing writing of the information itself. For example, when a user inputs reading instruction information using an input key, the input unit 2 receives the input of the reading instruction information and sends the reading instruction information to the control unit 10. When the user inputs the write instruction information using the input key, the input unit 2 receives the write instruction information and sends the write instruction information to the control unit 10.

  The external communication unit 3 is realized using an external communication interface such as RS232C (Recommended Standard 232 version C), USB (Universal Serial Bus), IEEE1394, or an infrared communication interface conforming to the IrDA (Infrared Data Association) standard. Information communication with an external host computer (not shown) or a peripheral device (not shown) such as a printer is performed. When the information read by the information reading process is input, the external communication unit 3 sends the information to an external host computer or peripheral device. Further, when various information for controlling the processing operation of the control unit 10 is input from an external host computer, the external communication unit 3 sends the information to the control unit 10. The external communication unit 3 can also be realized by using a common terminal that can be electrically connected to each terminal of an external host computer or peripheral device.

  The card interface 4 has a function of reading information input from the control unit 10 in a predetermined storage medium attached to the card interface 4 and reading desired information from the attached storage medium. The storage medium attached to the card interface 4 is, for example, an xD picture card, smart media, memory stick, multimedia card, SD (Secure Digital) memory card, or the like. The card interface 4 may be realized by a wireless LAN module or the like in which a memory card type LAN (Local Area Network) card can be mounted.

  The antenna 5 is a loop-shaped antenna (antenna coil) realized by using a plate-shaped conductor having a rectangular cross-section punched out of metal such as aluminum, titanium-nickel alloy, copper alloy, or stainless steel, and can communicate with it. A radio wave having a predetermined frequency corresponding to an electrical signal input from the RFID processing unit 6 is output to an external information storage medium existing in a specific area, while a radio wave output from the external information storage medium is received. Then, an electric signal corresponding to the received radio wave is sent to the RFID processing unit 6. Here, the radio wave having a predetermined frequency is an electromagnetic wave having a frequency band in the vicinity of 13.56 MHz, for example. The cross section of the antenna 5 is not limited to a rectangular cross section, and may have a circular cross section.

  The RFID processing unit 6 functions as a drive control processing unit that performs drive control of the antenna 5. That is, the RFID processing unit 6 has a function of transmitting an electric signal to the antenna 5 and outputting a radio wave having a predetermined frequency from the antenna 5. In this case, the RFID processing unit 6 performs desired non-contact wireless communication by controlling an electric signal transmitted to the antenna 5 and outputting a radio wave having a predetermined frequency from the antenna 5. The RFID processing unit 6 performs information reading processing or information writing processing on the external information storage medium via radio waves transmitted and received between the antenna 5 and the external information storage medium.

  The optical information reading unit 7 includes a light source such as a semiconductor laser element or a light emitting diode that projects infrared light or visible light on the optical information recording medium as scanning light, and reflected light of the scanning light from the optical information recording medium. It has a light receiving element such as an image sensor such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor) that receives light or a photo sensor.

  The display unit 8 includes a thin display such as a liquid crystal display (LCD) or an organic EL (Electroluminescence) panel, and information read by information reading processing, writing information included in writing instruction information, or optical information. The information read by the information reading unit 7 is displayed and output. In addition, the display part 8 can also be made to display and output the predetermined | prescribed error display which alert | reports this error, when some error generate | occur | produces in the processing operation of the information terminal device 1. FIG.

  The voice input / output unit 9 is realized using a microphone and a speaker, inputs voice information from the outside, and sends the input voice information to the control unit 10. The voice input / output unit 9 outputs the voice information input from the control unit 10 to the outside. The voice input / output unit 9 outputs a predetermined notification sound for notifying the start or completion of processing by each component, or displays an error display by the display unit 8 when an error relating to processing operation occurs in the information terminal device 1. A predetermined error notification sound can be output in synchronism with the output.

  The control unit 10 is realized by a CPU (Central Processing Unit) or the like having calculation and control functions, and controls operation processing of each functional unit by reading application software stored in the storage unit 11. The control unit 10 sends information input from the RFID processing unit 6 to an external host computer via the external communication unit 3, and then receives information processed by the host computer. May be.

  The storage unit 11 includes a ROM (Read Only Memory) preliminarily storing a program for starting a predetermined OS (Operation System), the above-described application software, and the like, an operation parameter of each process, an external information storage medium, or an optical information recording medium This is realized using a RAM (Random Access Memory) that stores various types of read information, information written to an external information storage medium, audio information, and the like.

  FIG. 2 is an exploded perspective view showing a specific configuration example of the information terminal device 1. 3 is a cross-sectional view taken along line XX when the information terminal device 1 of FIG. 2 is assembled. In addition, these figures typically describe the main part of the information terminal device 1 in order to extract the characteristics of the information terminal device 1 according to this embodiment.

  The information terminal device 1 shown in FIGS. 2 and 3 includes two housing members 12 and 13 formed by molding using a non-conductive material such as polycarbonate (PC) resin or ABS (Acrylonitrile Butadiene Styrene) resin. Are fitted to each other to form an apparatus housing portion. In the case shown in FIG. 2 and FIG. 3, the outer edges of the two casing members are arranged between the protrusion 12 a provided in advance on the lower end surface of the casing member 12 and the groove 13 a provided in the casing member 13 during assembly. An apparatus housing portion is formed by interposing an elastic member 14 having a shape conforming to the above and fitting both housing members with the elastic member 14 interposed therebetween. The elastic member 14 is elastically deformed by a force applied when assembling the apparatus housing portion, and fills a gap generated between the two housing members 12 and 13.

  When assembling the information terminal device 1, an appropriate adhesive may be applied between the elastic member 14 and the housing members 12 and 13. Although not shown, it is also possible to fasten both housing members by providing further screw holes in the housing members 12 and 13 and using screws suitable for the screw holes. Instead of using the elastic member 14, the apparatus housing portion may be constituted by the two housing members 12 and 13.

  The housing member 12 is provided with an operation unit 121 including a plurality of input keys, and an opening for displaying the display content of the display unit 8 to the outside. A display window 122 is attached to the opening. In addition, as an input key provided in the operation unit 121, an input device other than a button, more specifically, an input device such as a track point, a track ball, or a touch panel may be installed. In this sense, in this embodiment and each embodiment described later, these input devices are also referred to as “input keys”.

  A loop-shaped antenna 5 is installed on the inner bottom surface of the housing member 13. In addition, as a more specific shape of a loop here, shapes, such as a substantially circular shape, a substantially elliptical shape, and a substantially square shape, can be assumed. This point is common to all the embodiments of the present invention. As the area inside the loop formed by the antenna 5 is larger, the sensitivity to received radio waves can be improved. The housing member 13 further includes a power storage unit 131a that stores a power source 19 for activating the information terminal device 1, and stores the power source 19 by attaching a power source cover 131b from the outside of the bottom surface. .

  Next, each member housed inside the apparatus housing portion will be described. A switch unit 15 having a plurality of switches is installed inside the apparatus housing portion where the operation unit 121 is installed. When the input key of the corresponding operation unit 121 receives an operation from the outside, each switch of the switch unit 15 is electrically connected (on state) by pressing the input key, and the input key is operated. A corresponding signal is sent to the control unit 10. The switch unit 15 and the operation unit 121 correspond to the input unit 2.

  The display unit 8 inside the display window 122 and the shield plate 16 provided substantially below the display unit 8 are housed in a holder 17 that is fixed to the housing member 12. The shield plate 16 is interposed between the display unit 8 and the control unit 10 and is made of a metal such as aluminum or copper. The shield plate 16 has a function of shielding electromagnetic waves generated by the operation of the control unit 10 and the like, and prevents the display unit 8 from causing erroneous display due to the electromagnetic waves.

  On the bottom surface of the holder 17, that is, on the lower side of the surface opposite to the surface on which the display unit 8 and the shield plate 16 are accommodated, the control unit 10 (more specifically, an electronic device including various mounting components including a CPU) A circuit board 18 on which a circuit) is mounted is disposed and fixed to the casing member 12 or 13. As the wiring substrate 18, a single-layer or multilayer flexible substrate (FPC: Flexible Printed Circuit) made of polyimide or the like and having flexibility can be used. The card interface 4 may be further installed on the wiring board 18 and a removable storage medium may be attached to the card interface 4.

  The control unit 10 disposed on the wiring substrate 18 is located in a columnar space having a closed plane formed by a loop formed by the antenna 5 disposed on the housing member 13 and having a transverse cross section. They are separated by a predetermined distance or more. The value of the predetermined distance here is determined as an optimum value according to conditions such as the size of the information terminal device 1 and the performance required for the antenna 5. 2 and 3, as a more preferable example, the case where the entire wiring board 18 on which the control unit 10 is mounted is illustrated in the column space. That is, in this case, when the information terminal device 1 is viewed from above the housing member 12 (in the direction of arrow A in FIG. 2), the wiring board 18 is located inside the loop formed by the antenna 5. In the cross-sectional view of FIG. 3, the boundary of the columnar space passing through the outer edge of the wiring board 18 is indicated by a one-dot chain line.

  In this way, by configuring the information terminal device 1 in consideration of the positional relationship between the antenna 5 and the control unit 10, radio waves radiated from the antenna 5 are caused by the operation of the control unit 10 provided on the wiring board 18. The influence received from the generated electromagnetic waves is reduced, and good communication can be performed with the external information storage medium that is the communication target.

  2 and 3, the electrical connection between the wiring board 18 and each function processing unit is not specifically illustrated, but this electrical connection is formed by a flexible substrate, for example. This is realized by appropriately using connection means such as a connector.

  2 and 3, the image processing unit having an image processing function is also provided on the wiring board 18 as one function of the control unit 10, but another wiring board is prepared for the image processing unit. Further, it may be housed in the holder 17 together with the display unit 8 and the shield plate 16.

  Furthermore, a microphone and a speaker corresponding to the voice input / output unit 9 and the optical information reading unit 7 can be provided inside the apparatus housing part.

  Here, an overview of information reading and information writing operations performed by the information terminal device 1 according to this embodiment with the external information storage medium will be described. First, a case where reading instruction information is input from the input unit 2 will be described. In this case, when the reading instruction information is sent to the RFID processing unit 6 via the control unit 10, the RFID processing unit 6 modulates an electrical signal corresponding to the reading instruction information as necessary.

  The antenna 5 transmits a predetermined radio wave corresponding to the electrical signal received from the RFID processing unit 6 under the control of the RFID processing unit 6. The external information storage medium that has received the radio wave outputs a radio wave corresponding to the information stored therein based on the read instruction information included in the radio wave. The antenna 5 receives the radio wave output from the external information storage medium, and sends an electrical signal corresponding to the received radio wave to the RFID processing unit 6.

  The RFID processing unit 6 demodulates the electrical signal received from the antenna 5 as necessary. Thereafter, the RFID processing unit 6 sends information obtained based on the electric signal to the control unit 10 as information stored in the external information storage medium. Thereby, the information reading process from the external information storage medium is achieved.

  Next, a case where write instruction information is input from the input unit 2 will be described. In this case, when the input write instruction information is sent to the RFID processing unit 6 via the control unit 10, the RFID processing unit 6 modulates the electrical signal corresponding to the write instruction information as necessary. .

  The antenna 5 transmits a predetermined radio wave corresponding to the electrical signal received from the RFID processing unit 6 under the control of the RFID processing unit 6.

  The external information storage medium that has received the electrical signal corresponding to the write instruction information stores or overwrites the write information based on the instruction included in the received electrical signal. Thereby, the information writing process with respect to the external information storage medium is achieved.

  According to the first embodiment of the present invention described above, the control unit that reads information from or writes information to the external information storage medium is defined as a closed plane formed by a loop formed by the antenna. By disposing the housing member so that it is located in the columnar space, the antenna of the information terminal device can demonstrate its original performance and perform good communication with the communication target. Become.

  In addition, according to this embodiment, since the antenna is arranged in the housing part, it is not necessary to use a separate member for installing the antenna, and the number of parts can be reduced to facilitate downsizing and the cost can be reduced. Is possible.

  A modification of the above-described first embodiment will be described. FIG. 4 is an exploded perspective view showing a schematic configuration of an information terminal device according to a modification of the first embodiment. The information terminal device 101 shown in the figure has the function of the information terminal device 1 described above in a mobile phone, and the input-side housing portion and the display-side housing portion can be rotated via a hinge. Connected to

  Between the housing members 112 and 113 forming the housing portion on the display side, in addition to the display unit 8, the shield plate 16, the holder 17, the wiring board 18, the antenna 5, and a part of the audio input / output unit 9 are provided. The formed speaker 91 is stored at least. Also in this modified example, the control unit 10 disposed on the wiring board 18 is located in a columnar space having a closed plane formed by a loop formed by the antenna 5 as a cross section. The housing member 112 is provided with a hinge portion 112h and is hinged so as to be rotatable with respect to each other via a hinge portion 114h provided on the input-side housing 114 and a pin shaft 115.

  Although not shown, the input-side casing 114 includes an input unit 2 including an operation unit 121 composed of a plurality of input keys, a power supply 19, a wiring board on which a control unit for controlling the input unit 2 is mounted, and an audio input unit. A microphone that is a part of the output unit 9 is accommodated. The wiring board in the casing 114 and the wiring board 18 are electrically connected via appropriate connection means (not shown). In addition, the control unit 10 on the wiring board and each function unit are also electrically connected via appropriate control means.

  Also in the modified example of the first embodiment described above, the antenna included in the information terminal device can exhibit its original performance and perform good communication with the communication target.

  As is clear from the description of the one modification, the information terminal device according to the first embodiment can be easily applied to a small portable terminal. Therefore, in addition to the mobile phone, various types of small mobile terminals including a PHS (Personal Handyphone System), a PDA terminal, and the like can be provided with the functions of the information terminal device according to this embodiment.

(Embodiment 2)
5 is a cross-sectional view showing a configuration example of an information terminal device according to Embodiment 2 of the present invention, and is a cross-sectional view of FIG. 3 in Embodiment 1 described above (cross-sectional view taken along line XX in FIG. 2). It is equivalent to. For this reason, the same members as those in FIG.

  An information terminal device 21 according to this embodiment includes an input unit 2 that receives information input, an external communication unit 3 that communicates with the outside, a card interface 4 that records information in a predetermined storage medium, and an antenna for wireless communication. 5, an RFID processing unit 6 that performs drive control of the antenna 5 to read and write information to and from an external information storage medium, an optical information reading unit 7 that optically reads information from the optical information recording medium, A display unit 8 that displays and outputs information read from the external information storage medium and information to be written to the external information storage medium, a voice input / output unit 9 that inputs and outputs audio information, and a control unit 10 that controls the functions of the above-described units. And a storage unit 11 for storing a program for performing various processes and data used for the program (see FIG. 1).

  As shown in FIG. 5, the information terminal device 21 configured in a casing shape has a surface area of the wiring board 18 smaller than an area of the shield plate 16 surface. In such a case, the performance degradation of the antenna due to a predetermined radio wave radiated and transmitted from the antenna 5 being attracted toward the shield plate 16 cannot be ignored. Therefore, in this embodiment, the shield plate 16 is arranged so as to be positioned in a columnar space having a closed plane formed by a loop formed by the antenna 5 disposed in the housing member 13 and having a transverse cross section. . In other words, when the information terminal device 21 is viewed from above the housing member 13 (corresponding to the direction of arrow A in FIG. 2), the shield plate 16 is disposed so as to be located inside the loop formed by the antenna 5. In FIG. 5, the boundary of the columnar space is indicated by a one-dot chain line.

  The information terminal device 21 is configured such that the shield plate 16 is disposed in a columnar space having a closed plane formed by a loop formed by the antenna 5 disposed in the housing member 13 and having a transverse cross section. Thus, it has the same configuration as that of the configuration example of the information terminal device 1 according to the first embodiment. That is, the information terminal device 21 includes the operation unit 121, the display window 122, the display unit 8, the elastic member 14, the switch unit 15, the power storage unit 131a, the power supply cover 131b, and the power supply 19 in addition to the above-described components. Then, the information terminal device 31 is configured by appropriately disposing these components on the inside or the surface of the device housing portion formed using the housing members 12 and 13 (see FIG. 2). ).

  According to the second embodiment of the present invention described above, the antenna includes the shield plate having a function of shielding electromagnetic waves generated from the control unit that reads information from or writes information to the external information storage medium. Communication is performed by demonstrating the original performance of the antenna provided in the information terminal device by arranging it in the casing member so that it is located in a columnar space having a closed plane formed by the loop as a cross section. Good communication can be performed with the target.

  In particular, according to this embodiment, even when the shield plate is large and radio waves generated from the antenna are likely to be attracted toward the shield plate, the antenna performance is prevented from deteriorating, and external information that is a communication target is prevented. Good communication can be performed with the storage medium.

  Also in this embodiment, since the antenna is arranged in the housing portion as in the first embodiment, it is not necessary to use a separate member for installing the antenna, and the number of parts is reduced and the miniaturization is facilitated. It becomes possible to hold down the cost.

  The information terminal device according to this embodiment can also be realized as a small mobile terminal such as a mobile phone, a PHS, or a PDA terminal.

(Embodiment 3)
FIG. 6 is an exploded perspective view schematically showing a schematic configuration of the information terminal device according to Embodiment 3 of the present invention. The information terminal device 31 shown in the figure is characterized in that the loop-shaped antenna 5 is disposed on the outer edge portion on the wiring board 18.

  An information terminal device 31 according to this embodiment includes an input unit 2 that receives input of information, an external communication unit 3 that communicates with the outside, a card interface 4 that records information in a predetermined storage medium, and an antenna for wireless communication 5, an RFID processing unit 6 that performs drive control of the antenna 5 to read and write information to and from an external information storage medium, an optical information reading unit 7 that optically reads information from the optical information recording medium, A display unit 8 that displays and outputs information read from the external information storage medium and information to be written to the external information storage medium, a voice input / output unit 9 that inputs and outputs audio information, and a control unit 10 that controls the functions of the above-described units. And a storage unit 11 for storing a program for performing various processes and data used for the program (see FIG. 1).

  The information terminal device 31 is configured in the same manner as the configuration example of the information terminal device 1 according to the first embodiment except that the loop-shaped antenna 5 is disposed on the outer edge portion on the wiring board 18. That is, the information terminal device 31 includes the operation unit 121, the display window 122, the display unit 8, the elastic member 14, the switch unit 15, the power storage unit 131a, the power supply cover 131b, and the power supply 19 in addition to the above-described components. The information terminal device 31 is configured by appropriately arranging these components on the inside or on the surface of the device housing portion formed by using the housing members 12 and 13 (see FIG. 2). .

  FIG. 7 is a perspective view showing the configuration of the main part of the wiring board 18 shown in FIG. 6 in more detail. In the case shown in the figure, the wiring board 18 has a multilayer (about 5 to 7 layers) pattern, and each layer is mounted with a component such as a CPU constituting the control unit 10 and an electronic circuit including the card interface 4 and the like. A component 81 is disposed as appropriate. It is preferable that the mounting components 81 are densely arranged near the substantially central portion of the wiring board 18 so that the influence of electromagnetic waves generated by the operation of the control unit 10 does not reach the antenna 5 as much as possible.

  In the outer edge portion of the wiring board 18, the antenna 5 circulates around the outer edge portion of each layer through a plurality of through holes TH provided by making holes for each layer. As a result, the number of turns of the coil formed by the antenna 5 itself can be increased even in a limited region, and the intensity of the radio wave radiated from the antenna 5 can be increased.

  FIG. 7 shows only one configuration example, and the antenna 5 can also be provided around the outer edge of the single-layer wiring board 18. The layer structure of the wiring board 18 can be variously changed according to conditions such as the size of the casing on which the wiring board 18 is provided and the required intensity of radiated radio waves.

  According to the third embodiment of the present invention described above, the antenna is integrally provided on the wiring board, so that it is generated from the control unit that reads information from or writes information to the external information storage medium. Thus, the influence of the electromagnetic wave on the antenna can be reduced, the antenna performance can be prevented from deteriorating, and good communication can be performed with the communication target.

  Further, according to this embodiment, since the antenna is arranged on the wiring board, it is possible to provide an information terminal device suitable for downsizing and cost reduction without increasing the number of components.

  It is to be noted that the information terminal device according to this embodiment can be realized as a small portable terminal such as a mobile phone, a PHS, or a PDA terminal, which is the same as the two embodiments described above.

  As mentioned above, although preferable embodiment of this invention was explained in full detail as Embodiment 1-3, the structure of this invention is not limited to them. That is, the present invention can include various embodiments not described herein, and various design changes and the like can be made without departing from the technical matters specified by the claims. Is possible.

It is a block diagram which shows the function structure of the information terminal device which concerns on Embodiment 1 of this invention. It is a disassembled perspective view which shows the structure of the information terminal device which concerns on Embodiment 1 of this invention. FIG. 3 is a sectional view taken along line XX in FIG. 2. It is a disassembled perspective view which shows the structure of the information terminal device which concerns on one modification of Embodiment 1 of this invention. It is sectional drawing which shows the structure of the information terminal device which concerns on Embodiment 2 of this invention. It is a disassembled perspective view which shows the structure of the information terminal device which concerns on Embodiment 3 of this invention. FIG. 7 is a perspective view illustrating a more specific configuration example of the wiring board of FIG. 6.

Explanation of symbols

1, 21, 31, 101 Information terminal device 2 Input unit 3 External communication unit 4 Card interface 5 Antenna 6 RFID processing unit 7 Optical information reading unit 8 Display unit 9 Voice input / output unit 10 Control unit 11 Storage unit 12, 13, 112 , 113 Housing member 14 Elastic member 15 Switch part 16 Shield plate 17 Holder 18 Wiring board 19 Power supply 81 Mounting component 91 Speaker 112h, 113h Hinge part 114 Housing 115 Pin shaft 121 Operation part 122 Display window 131a Power supply part 131b Power supply cover TH Through hole

Claims (5)

  1. Reading of information stored in the external information storage medium and writing of information to the external information storage medium by non-contact communication using a predetermined radio wave to an external information storage medium existing in a communicable area In an information terminal device that performs at least one of the following:
    A control unit that controls at least reading of the information or writing of the information;
    A wiring board on which the control unit is disposed;
    A loop antenna for transmitting and receiving the predetermined radio wave;
    With
    The information terminal device, wherein the control unit is located in a columnar space having a closed plane formed by a loop formed by the antenna.
  2. Reading of information stored in the external information storage medium and writing of information to the external information storage medium by non-contact communication using a predetermined radio wave to an external information storage medium existing in a communicable area In an information terminal device that performs at least one of the following:
    A control unit that controls at least reading of the information or writing of the information;
    A wiring board on which the control unit is disposed;
    A shield plate for shielding electromagnetic waves generated from the control unit;
    A loop antenna for transmitting and receiving the predetermined radio wave;
    With
    The information terminal device, wherein the shield plate is located in a columnar space having a closed plane formed by a loop formed by the antenna and having a transverse cross section.
  3. A display unit for displaying at least information read from the external information storage medium or information to be written to the external information storage medium;
    The information terminal device according to claim 2, wherein the shield plate is interposed between the display unit and the control unit.
  4. A housing member for accommodating at least the control unit and the wiring board;
    The information terminal device according to claim 1, wherein the antenna is disposed on the housing member.
  5.   The information terminal device according to claim 1, wherein the antenna is disposed on an outer edge portion of the wiring board.
JP2004369672A 2004-12-21 2004-12-21 Information terminal device Withdrawn JP2006178647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004369672A JP2006178647A (en) 2004-12-21 2004-12-21 Information terminal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004369672A JP2006178647A (en) 2004-12-21 2004-12-21 Information terminal device

Publications (1)

Publication Number Publication Date
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Family Applications (1)

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JP2004369672A Withdrawn JP2006178647A (en) 2004-12-21 2004-12-21 Information terminal device

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Country Link
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7862360B2 (en) 2007-01-30 2011-01-04 Harada Industry Co., Ltd. Antenna connector assembly
CN102217302A (en) * 2008-11-19 2011-10-12 索尼公司 Embedded wireless antenna for network tv
US8692725B2 (en) 2007-12-20 2014-04-08 Harada Industry Co., Ltd. Patch antenna device
US8941544B2 (en) 2008-07-08 2015-01-27 Harada Industry Co., Ltd. Vehicle roof mount antenna
US8994475B2 (en) 2008-05-27 2015-03-31 Harada Industry Co., Ltd. Vehicle-mounted noise filter
USD726696S1 (en) 2012-09-12 2015-04-14 Harada Industry Co., Ltd. Vehicle antenna
US9153864B2 (en) 2011-02-15 2015-10-06 Harada Industry Co., Ltd. Vehicle pole antenna
US9225055B2 (en) 2011-03-24 2015-12-29 Harada Industry Co., Ltd. Antenna device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7862360B2 (en) 2007-01-30 2011-01-04 Harada Industry Co., Ltd. Antenna connector assembly
US8692725B2 (en) 2007-12-20 2014-04-08 Harada Industry Co., Ltd. Patch antenna device
US8994475B2 (en) 2008-05-27 2015-03-31 Harada Industry Co., Ltd. Vehicle-mounted noise filter
US8941544B2 (en) 2008-07-08 2015-01-27 Harada Industry Co., Ltd. Vehicle roof mount antenna
CN102217302A (en) * 2008-11-19 2011-10-12 索尼公司 Embedded wireless antenna for network tv
JP2012509642A (en) * 2008-11-19 2012-04-19 ソニー エレクトロニクス インク Built-in wireless antenna for network TV
US9153864B2 (en) 2011-02-15 2015-10-06 Harada Industry Co., Ltd. Vehicle pole antenna
US9225055B2 (en) 2011-03-24 2015-12-29 Harada Industry Co., Ltd. Antenna device
USD726696S1 (en) 2012-09-12 2015-04-14 Harada Industry Co., Ltd. Vehicle antenna

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