JP2005346295A - Portable terminal apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide structure capable of improving the mechanical strength of a holding part of a card-like storage medium and that of a portable terminal apparatus, and in the case of ejecting the card-like storage medium from the portable terminal apparatus, capable of preventing the card-like storage medium from being unexpectedly jumped out from a slot, and to provide the portable terminal apparatus provided with the structure. <P>SOLUTION: The portable terminal apparatus 1 comprises: a card holding part 133 capable of holding a card-like storage medium, writing data in the card-like storage medium and reading out data from the card-like storage medium; and a frictional force providing mechanism 135 arranged so as to come into contact with the card-like storage medium installed on a prescribed position of the card holding part to provide frictional force for holding the card-like storage medium in a prescribed ares inside the card holding part against thrust to be given to the card-like storage medium in order to eject the card-like storage medium from the card holding part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a portable terminal device such as a mobile communication terminal device and a terminal device holding data, and more particularly to a holding mechanism for an external storage device that can be attached to and detached from the device body.

  A portable terminal device, for example, a mobile phone device that is a mobile communication terminal device or a terminal device that holds music data, that can exchange music data and image data with an external device using a card-like storage medium is already in practical use It has become. The card-like storage medium is preferably detachable by the user. In addition, in order to prevent the entry of dust and dirt from the outside easily, the card slot in which the card-like recording medium is mounted is mounted in a card housing portion in which a part of the outer cover can be opened. The

For example, in a cellular phone device, a case for storing a memory card is provided in the vicinity of an external interface connector that enables signal exchange with a service system (host device on the administrator side), and a lid is shared. Has been reported (for example, see Patent Document 1).
JP-A-10-190803

  However, the proposal disclosed in Patent Document 1 does not take into consideration that the memory card pops out of the case due to the thrust by the release mechanism when the inserted memory card is ejected (discharged) from the case to the outside. .

  On the other hand, as the card-shaped memory member currently supplied to the market, a very light and small-sized memory member has already been put into practical use. It has been reported that there is an example in which it is easy to jump out from a part (slot) and falls undesirably to the outside.

  Needless to say, the drop of the card-shaped memory member from the portable terminal device to the outside causes problems such as the loss of the memory member itself or the unexpected short circuit of the contact portion in the rainy weather.

  In addition, along with the reduction in size and weight of mobile terminal devices, there has also been proposed a housing structure that suppresses deformation and the like of the mobile terminal device against rigidity and external force while the card-like memory member is mounted in the slot. Therefore, it is required to ensure the strength (rigidity) of the mobile terminal device in a state where the card-like memory member is not attached.

  An object of the present invention is to increase the mechanical strength of a card-shaped storage medium holding unit and a portable terminal device, and when the card-shaped storage medium is ejected from the portable terminal device, It is an object of the present invention to provide a structure that can prevent undesirably jumping out of a slot, and a mobile terminal device having the structure.

  According to the present invention, a communication circuit board that enables transmission and reception of data by a spatial wave, and exchange of data acquired by the spatial wave with an external apparatus and the external apparatus are electrically connected to the communication circuit board. A card that holds a card-like storage medium used for data transfer for transmitting data as a spatial wave, and that can write data to the card-like storage medium and read data from the card-like storage medium When ejecting the holding unit and the card-like storage medium attached to the card holding unit from the card holding unit, the card-like storage medium is removed from the card holding unit by the thrust provided to the card-like storage medium. The present invention provides a mobile communication portable terminal device characterized by having a card pop-out prevention mechanism for preventing the card from popping out.

  The present invention also includes a circuit board for processing signals, and a card-shaped storage medium that is electrically connected to the circuit board and used to exchange data with an external device. A card holding unit capable of writing data to the medium and reading data from the card-like storage medium, and a card when the card-like storage medium attached to the card holding unit is ejected from the card holding unit. And a card pop-out prevention mechanism for preventing the card-like storage medium from popping out of the card holding part by a thrust provided to the card-like storage medium.

  The present invention also provides a card holding unit that holds a card-like storage medium, can write data to the card-like storage medium, and can read data from the card-like storage medium. The card-shaped storage medium is provided at the position of the card-shaped storage medium so as to be able to come into contact with the card-shaped storage medium. And a frictional force providing mechanism for providing a frictional force that keeps the storage medium in a predetermined area in the card holding part.

  According to the present invention, when the card-like removable storage medium is not attached to the card slot, the mechanical strength of the card holding unit can be increased.

  Further, it is possible to prevent the card-like storage medium from jumping out of the slot when ejecting from the state where the card-like storage medium is mounted in the card slot.

  Furthermore, due to the card-shaped storage medium popping out of the slot, the data of the card-shaped storage medium itself is lost or the storage medium is unexpectedly short-circuited due to an outdoor drop in the rain. Destruction is reduced.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  1 and 2 are schematic diagrams for explaining an example of a mobile terminal device to which the embodiment of the present invention is applied, for example, a terminal device for mobile communication. The embodiment of the present invention described in detail below can be applied to a portable device that can hold code information obtained by digitizing music data or the like and can reproduce music while being carried. It is.

  As shown in FIG. 1, a mobile terminal device 1, for example, a mobile phone device 1 that can make a call and transmit / receive data while moving by using a spatial wave has a display unit 10 and a main unit 20. The display unit 10 and the main unit 20 are connected by a connection unit 30.

  An external connection portion in which a card slot for storing a connector used for connection with an external device and information exchange and a card-like memory member that can be attached to and detached from the main body unit 20 is stored at a predetermined position of the main body unit 20. 21 is provided. At a predetermined position in the vicinity of the external connection portion 21, a power supply terminal 22 that can supply power from a charging power supply device or an external battery device (not shown) is provided.

  FIG. 2 illustrates the cellular phone device 1 schematically shown in FIG. 1 according to the state in use. The display unit 10 includes a speaker 11 used for voice call and music data reproduction, the telephone number of the call destination or the other party at the time of incoming call, the address of the data transmission destination or the transmission source, the character information being edited or reproduced. Or the display part 12 which can display image information etc. is provided. The main unit 20 is provided with an input unit 23 used for inputting numerical values or character information and a microphone 24 used for voice communication. Although not described in detail in the input unit 23, for example, a numeric key (dial) used for inputting a destination telephone number or numeric data, a transmission key, an end key, a power key, a volume adjustment key, a mode designation key, etc. Various setting keys used for setting various functions and specifying operation states are provided.

  FIG. 3 is a schematic block diagram illustrating an example of functions of the mobile terminal device shown in FIGS. 1 and 2.

  A radio signal transmitted from the connected base station is received by the antenna 101 and then input to the reception circuit (RX) 103 via the antenna duplexer (DUP) 102.

  In the receiving circuit 103, the received radio signal and the local oscillation signal output from the frequency synthesizer (SYN) 104 are mixed and frequency-converted (down-converted) into an intermediate frequency signal. The reception circuit 103 outputs a reception baseband signal obtained by orthogonally demodulating the intermediate frequency signal. The frequency of the local oscillation signal generated from the frequency synthesizer 104 is instructed by a control signal SYC from the control unit 112 described below.

  The received baseband signal is input to CDMA signal processing unit 106. The CDMA signal processing unit 106 includes a RAKE receiver. In the RAKE receiver, a plurality of paths included in the received baseband signal are each subjected to despreading processing using spreading codes. The signals of the paths subjected to the despreading process are combined after being matched in phase. As a result, received packet data in a predetermined transmission format is obtained.

  The received packet data is input to a compression / decompression processing unit (hereinafter referred to as a compander) 107. The compander 107 includes a demultiplexing unit (not shown), and the received packet data output from the CDMA signal processing unit 106 is separated for each medium (information type) by the demultiplexing unit. The compander 107 decodes each separated media data. For example, when audio data is included in the received packet data, the audio data is decoded by a speech codec. If video data is included in the received packet data, the video data is decoded by a video codec.

  The digital audio signal decoded through the compander 107 is input to the PCM code processing unit (hereinafter referred to as PCM codec) 108, and the digital video signal is input to the control unit 112. If the received packet data includes text data such as mail, the text data is stored in the storage unit 113 through the control unit 112.

  The digital audio signal output from the compander 107 is PCM decoded by the PCM codec 108 and output to the reception amplifier 109 as an analog audio signal. The audio signal input to the reception amplifier 109 is amplified to a predetermined level and then output to the speaker 11. Therefore, voice or reproduced music is output from the speaker 11.

  The control unit 112 converts the digital video signal output from the compander 107 into a signal format suitable for display on an LCD (Liquid Crystal Devise) of the display unit 12 using a video RAM (not shown), and at a predetermined timing. Transfer to LCD. As a result, an image is displayed on the LCD in accordance with a signal input via an LCD drive circuit (not shown).

  Text data such as e-mail is called from the storage unit 113 at a predetermined timing based on a (user's) instruction input from the input unit 23, and corresponds to character information or symbols to be displayed by a code conversion unit (not shown). Is converted to a code string and supplied to the LCD as information to be displayed on the LCD. Thereby, characters or symbols are displayed on the LCD in accordance with signals input via an LCD drive circuit (not shown).

  For example, when the answering machine mode is set in the input unit 23, the audio data and the video data at the stage before being decoded in the compander 107 are controlled by the control unit 112, for example, in the storage unit 113. Stored in the recording area.

  On the other hand, the user's voice input to the microphone 24 is amplified to an appropriate level by the transmission amplifier 110, encoded into a PCM code by the PCM codec 108, and input to the compander 107 as a digital audio signal. . A video signal captured by a camera (not shown) is digitized by the control unit 112 and input to the compander 107. Note that text data such as e-mail created by the control unit 112 is also input from the control unit 112 to the compander 107.

  The compander 107 detects the amount of energy of the input voice from the digital audio signal output from the PCM codec 108, and determines the transmission data rate based on the detection result. Based on the determined transmission data rate, the digital audio signal is encoded into a signal having a format corresponding to the transmission data rate. In this way, transmission audio data is generated. The compander 107 encodes the digital video signal output from the control unit 112 to generate video data.

  Audio data and image data are packetized according to a predetermined transmission format by a demultiplexing unit (not shown) of the compander 107. The packetized transmission packet data is output to the CDMA signal processing unit 106. Text data such as mail is also packetized in the same manner and multiplexed into transmission packet data.

  In the CDMA signal processing unit 106, the transmission packet data output from the compander 107 is subjected to spread spectrum processing using a spreading code assigned to the transmission channel, and the output signal is output to the transmission circuit (TX) 105.

  In the transmission circuit 105, the signal spread in the CDMA signal processing unit 106 is modulated by, for example, a QPSK digital modulation method. The modulated transmission signal is combined with a local oscillation signal generated from the frequency synthesizer 104, and converted into a spatial wave of a predetermined frequency, that is, a radio signal.

  The radio signal output as a spatial wave from the transmission circuit 105 is amplified at a high frequency so as to have a transmission power level instructed by the control unit 112 prior to transmission (in the transmission circuit 105).

  The amplified radio signal, that is, a high-frequency signal is supplied to the antenna 101 via the antenna duplexer 102 and transmitted from the antenna 101 to the base station.

  Note that the power used for the series of operations or data storage and retention described above is supplied in advance from a commercial power source or an external battery device (not shown) via the power supply terminal 22 described previously with reference to FIGS. 1 and 2. The battery 114 holds the battery. Further, the power held in the battery 114 is supplied to each part of the cellular phone device 1 as a predetermined operation power supply voltage Vcc by the power supply circuit 115 during operation or as necessary.

  The control unit 112 also has an I / O port (input / output unit) 112b connected to the main control unit 112a used for the above-described series of operations or data storage and retention, and will be described below with reference to FIG. However, by being connected to the connector (interface) 121 of the external connection unit 21 shown in FIG. 2, it is possible to exchange signals with the service system (administrator side host device). The connector 121 connected to the I / O port 112b is described in detail so that communication by a spatial wave is possible when connected to a personal computer owned by the user or a modem provided in an arbitrary device. It is possible to assign signals for input / output according to the protocol that is not.

  An external interface 112c is connected to the main control unit 112a.

  The external interface 112c is connected to a card slot 131 that can exchange data with a card-shaped storage medium whose standard has already been disclosed, for example, a miniSD card M (trademark). The card slot 131 carries, for example, image data captured by the camera mechanism when the mobile phone device 1 is equipped with a camera or image data obtained (downloaded) from the outside through communication via the miniSD card M. It is used for moving to a playback device or personal computer other than the telephone device 1. In addition, the miniSD card M can move the code information obtained by digitizing music data or the like and image information prepared in advance to the mobile phone device 1 so that the mobile phone device 1 can reproduce music and images.

  4 and 5 are schematic diagrams for explaining an example of the configuration of the card slot and the vicinity thereof. FIG. 4 shows a state in which a part of the card slot is cut in order to explain the inside of the card slot in more detail. FIG. 5 shows a state where a card-like storage medium is mounted in the card slot.

  The card slot 131 is located at a predetermined position on the exterior resin 20a of the main unit 20 so that a part of the card slot 131 can be exposed when the cover member (not shown) of the external connection portion 21 (see FIG. 1 or 2) is opened. Is provided.

  The card slot 131 includes a support substrate 132 that is fixed at a fixed position of the exterior resin 20a, and a card holding unit 133 that is provided at a predetermined position of the support substrate 132 and into which a card-like storage medium, for example, a miniSD card M can be mounted. doing. The card holding unit 133 holds the miniSD card M used for data transfer with an external device, and can write data to the miniSD card M and read data from the miniSD card M.

  The card holding portion 133 is a flexible substrate covered with an insulating resin or the like except for the contact 134d portion, for example, and is fixed to the support substrate 132 by resin molding or adhesion. A flexible cable 134 capable of exchanging signals with a main board (main board) (not described in detail) provided in advance at a predetermined position of the main unit 20 is connected to the card holding unit 133. On the card holding part 133 side of the flexible cable 134, a contact 134d that can be electrically connected to a contact Md provided at a predetermined position of the miniSD card M attached to the card holding part 133 is provided. The flexible cable 134 is formed integrally with the card holding part 133.

  The card-shaped storage medium, that is, the miniSD card M is very lightweight and small among the card-shaped memory members currently on the market, so that it can be easily ejected from the card slot 131 by a slight force for ejection. Although it depends on the state of time, it has been reported that there is an example of dropping from the mobile phone device 1 to the outside. Needless to say, the drop of the miniSD card M from the mobile phone device 1 to the outside is a factor inducing data damage due to the loss of the card itself or an unexpected short circuit of the contact Md in the rainy outdoors.

  At a predetermined position of the card holding unit 133, the SD card M is prevented from jumping out of the slot 131 due to a thrust by a release mechanism (not shown) when the inserted miniSD card M is ejected (discharged) to the outside of the slot 131. A spring member (card pop-out prevention mechanism) 135 is provided. In other words, the spring member 135 counteracts the thrust provided to the miniSD card M in order to eject the miniSD card M from the card holding part 133, and has a frictional force that keeps the miniSD card M in a predetermined region in the card holding part. It functions as a frictional force providing mechanism. Note that the spring member 135 is in contact with the miniSD card M at a position where the spring member 135 is in contact with the miniSD card M at the time of operation (ie, when the card is mounted).

  The spring member 135 interferes with the contact Md of the miniSD card M when the miniSD card M is inserted into the card slot 131, that is, when the miniSD card M is mounted at a predetermined position of the card holding part 133. It can be provided at any position as long as it is not.

  The spring member 135 is made of, for example, spring stainless steel or phosphor bronze having a predetermined thickness. For example, the spring member 135 is fixed to the card holding portion by molding. In addition, the surface of the spring member 135 that contacts the miniSD card M or a position that contacts the miniSD card M during operation (when the card is mounted) is a resin material that has less wear and that can improve sliding characteristics, such as Teflon resin or solid bearing ( Resin) or the like.

  Around the card holding portion 133, a cover member 136 that improves the reliability of contact between the contact 134d of the flexible cable 134 and the contact Md of the miniSD card M and shields unnecessary radiation is provided. Further, the position of the contact Md of the miniSD card M is associated with the slide portion Ma formed at a predetermined position of the miniSD card M. The cover member 136 may be grounded through a main board (main substrate) (not shown) by being connected to the support substrate 132, for example.

  In addition, the space secured by the cover member 136 is free from external forces acting from the outside when the card M is not attached, by contacting the free end of the spring member 135 or any part of the vicinity of the spring member 135. Due to this, undesired deformation is reduced. In other words, the free end of the spring member 135 can contact the inner wall of the cover member 136 when the card M is not mounted, and exerts a predetermined amount of resistance against the external force acting on the cover member 136 from the outside. Can be provided. Therefore, even when the card M is not mounted, the rigidity of the cover member 136 that is insufficient when the weight is reduced by reducing the thickness of the cover member 136 can be increased.

  FIG. 6 illustrates another embodiment of the card pop-out prevention mechanism shown in FIG. In addition, the same code | symbol is attached | subjected to the structure same as the structure demonstrated using FIG. 4 and FIG. 5, and detailed description is abbreviate | omitted.

  The embodiment shown in FIG. 6 is formed integrally with the cover member 136, and is driven by a thrust by a release mechanism (not shown) when the miniSD card M inserted into the card holding part 133 is ejected (discharged) to the outside of the slot 131. A spring mechanism (card pop-out prevention mechanism) 136a for preventing the card from jumping out from the slot 131 is provided.

  According to this configuration, it is not necessary to fix the spring member 135 to the card holding part 133 with the flexible wiring, and the number of parts can be reduced as compared with the example described above with reference to FIGS. Further, since the spring mechanism 136a is located on the side opposite to the side on which the contact Md of the card M is provided, the spring mechanism 136a can be arranged at any position of the cover member 136.

  It should be noted that the cover member 136 is not caused by an external force acting from the outside by contacting the card holding part 133 with the action part which is an arbitrary part of the free end of the spring mechanism 136a or in the vicinity thereof when the card M is not mounted. When suppressing the desired deformation, higher rigidity can be ensured as compared with the embodiment described above with reference to FIGS. 4 and 5. In this case, the direction or length of the spring mechanism 136a may be optimized so that the free end of the spring mechanism 136a does not contact the contact 134d of the card holding part 133 when the card is not mounted.

  FIG. 7 illustrates still another embodiment of the card pop-out prevention mechanism shown in FIGS. In addition, the same code | symbol is attached | subjected to the structure same as the structure demonstrated using FIG. 4 thru | or 6, and detailed description is abbreviate | omitted.

  In the embodiment shown in FIG. 7, two spring members (card pop-out prevention mechanisms) 237a and 237b that can prevent the miniSD card M inserted into the card holding portion 133 from jumping out of the card slot 131 are provided in the card holding portion. 133 is provided in a direction orthogonal to the thickness direction of the card when the miniSD card M is mounted.

  Needless to say, only one of the spring members 237a and 237b may be provided. Further, at least one of the spring members 237a and 237b is a protrusion that functions integrally with (engages with the notch) at least one of the notch Mb or Mc (see FIG. 4) defined in advance in the miniSD card M. A part, that is, an action part may be provided.

  In the embodiment shown in FIG. 7, the spring members 237 a and 237 b are arranged in a direction orthogonal to the thickness direction of the card M when the miniSD card M is attached to the card holding portion 133, thereby providing an exterior resin. Even if an undesired external force is generated through 20a (see FIG. 4), it is possible to prevent the card M from being bent or a force in the direction of jumping out from the card slot 131 acting on the card M. Note that the spring members 237a and 237b have a size in the height (thickness of the card M) direction that is optimal with respect to the height of the space defined by the cover member 136. It is possible to prevent the cover member 136 from being undesirably deformed due to an external force acting on the cover member 136 from the outside when the cover member 136 is not attached.

  As described above, according to the present invention, when a card-like removable storage medium is not attached to the card slot, the mechanical strength of the card holding portion can be increased, and the card-like storage medium can be inserted into the slot. When ejecting from a state in which the storage medium is mounted, it is possible to prevent the card-shaped storage medium from jumping out of the slot undesirably.

  The present invention is not limited to the above-described embodiments, and various modifications or changes can be made without departing from the scope of the invention when it is implemented. In addition, the embodiments may be implemented by appropriately combining them as much as possible, or by deleting a part thereof, and in that case, various effects resulting from the combination or deletion can be obtained.

  For example, in the detailed description of the invention, the embodiment of the present invention has been described by taking a mobile phone device as an example. However, an audio device capable of moving (storing) music data using a card-like storage medium and captured image information. Needless to say, the present invention can also be applied to a digital camera or the like that supplies a printer with a card medium.

Schematic explaining an example of a terminal device to which an embodiment of the present invention is applied. Schematic explaining an example of a terminal device to which an embodiment of the present invention is applied. FIG. 3 is a schematic block diagram illustrating an example of functions of the mobile terminal device illustrated in FIGS. 1 and 2. Schematic explaining an example of a structure of a card slot and its vicinity. Schematic explaining the state where the card-shaped storage medium was mounted | worn with the card slot. Schematic explaining another embodiment of the card slot shown in FIG. 4 and FIG. FIG. 7 is a schematic diagram illustrating another embodiment of the card slot shown in FIGS. 4 to 6.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Mobile telephone apparatus, 10 ... Display unit, 11 ... Speaker, 12 ... Display part, 20 ... Main body unit, 20a ... Exterior resin, 21 ... External connection part, 22 ... Feeding terminal, 23 ... Input part, 24 ... Microphone, DESCRIPTION OF SYMBOLS 30 ... Connection part, 101 ... Antenna, 102 ... Antenna duplexer (DUP), 103 ... Reception circuit (RX), 104 ... Frequency synthesizer (SYN), 105 ... Transmission circuit (TX), 106 ... CDMA signal processing part, 107 ... compression / decompression processing unit (compander), 108 ... PCM code processing unit (PCM codec), 109 ... reception amplifier, 110 ... transmission amplifier, 112 ... control unit, 112a ... main control unit, 112b ... I / O port, 112c ... External interface 113 ... Storage unit 114 ... Battery 115 ... Power supply circuit 121 ... Connector 131 ... Card slot , 132 ... support substrate, 133 ... card holder, 134 ... flexible cable, 134d ... contact (card slot side), 135 ... spring member, 136 ... cover member, 136a ... spring mechanism, 237a, 237b ... spring member, M ... miniSD card (card-like storage medium).

Claims (13)

A communication circuit board capable of transmitting and receiving data by spatial waves;
A card-shaped card that is electrically connected to this communication circuit board and used for data exchange with external devices for data acquired by spatial waves and data for transmitting data held by external devices as spatial waves. A card holding unit that holds the storage medium and can write data to the card-like storage medium and read data from the card-like storage medium;
When the card-like storage medium attached to the card holding part is ejected from the card holding part, the card-like storage medium is prevented from jumping out of the card holding part by the thrust provided to the card-like storage medium. Card pop-out prevention mechanism,
A mobile terminal device for mobile communication, comprising:   The mobile card for mobile communication according to claim 1, wherein the card pop-out prevention mechanism includes an action part, and the action part includes a spring member that contacts a card-like storage medium attached to the card holding part. Terminal device.   3. The mobile communication portable terminal according to claim 2, wherein the card pop-out prevention mechanism is provided in parallel to a direction orthogonal to a thickness direction of a card-shaped storage medium attached to the card holding unit. apparatus.   The portable terminal device for mobile communication according to claim 2, wherein the card pop-out prevention mechanism is provided in a direction parallel to a thickness direction of a card-like storage medium mounted on the card holding unit.   5. The mobile communication portable terminal device according to claim 4, wherein the card pop-out prevention mechanism functions integrally with a notch unique to the card-shaped storage medium.   5. The card pop-out prevention mechanism can provide a resistance against an external force acting on the card holding unit when a card-shaped storage medium is not attached to the card holding unit. The mobile terminal device for mobile communication according to any one of the above. A circuit board for processing the signal;
Holds a card-like storage medium that is electrically connected to this circuit board and is used to exchange data with external devices, writes data to the card-like storage medium, and reads from the card-like storage medium A card holder capable of reading data;
When the card-like storage medium attached to the card holding part is ejected from the card holding part, the card-like storage medium is prevented from jumping out of the card holding part by the thrust provided to the card-like storage medium. Card pop-out prevention mechanism,
A portable terminal device comprising:   8. The portable terminal device according to claim 7, wherein the card pop-out prevention mechanism includes an action portion, and the action portion includes a spring member that contacts a card-like storage medium attached to the card holding portion.   9. The portable terminal device according to claim 8, wherein the card pop-out prevention mechanism is provided in parallel to a direction orthogonal to a thickness direction of a card-like storage medium attached to the card holding unit.   9. The portable terminal device according to claim 8, wherein the card pop-out prevention mechanism is provided in a direction parallel to a thickness direction of a card-like storage medium attached to the card holding unit.   11. The portable terminal device according to claim 10, wherein the card pop-out prevention mechanism functions integrally with a notch unique to the card-shaped storage medium.   11. The card pop-out prevention mechanism can provide a resistance against an external force acting on the card holding unit when a card-shaped storage medium is not attached to the card holding unit. The mobile terminal device according to any one of the above. A card holding unit that holds a card-like storage medium and can write data to the card-like storage medium and read data from the card-like storage medium;
Thrust provided at a predetermined position of the card holding unit so as to be able to come into contact with the card-like storage medium to be attached and provided to the card-like storage medium for discharging the card-like storage medium from the card holding unit And a frictional force providing mechanism for providing a frictional force that keeps the card-shaped storage medium in a predetermined area in the card holding unit,
A card holding device.

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