JP2007143041A - Card type apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a card type apparatus which is good to use by automating rotation operation of an antenna structure. <P>SOLUTION: In the card type apparatus 1 with a wireless communication function wherein a circuit board 2 is housed inside of a housing 3, the antenna structure 4 is provided outside of the housing 3 while it is rotatable and displaceable in an operation range between a state of standing with respect to the upper surface of the housing 3 and a housed state of lying down. A motor 17 is provided for applying rotation torque to a rotary shaft 12 of the antenna structure 4. The card type apparatus 1 includes circuit parts for controlling driving of the motor 17. The circuit parts include a circuit part which receives a wireless communication start signal and which energizes the motor 17 with current for standing the antenna structure to rotate and displace the antenna structure 4 in a standing direction, and a circuit part which receives a wireless communication finish signal and which energizes the motor 17 with current in a direction opposite to the current for standing the antenna structure to rotate and displace the antenna structure 4 in a housing direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a card type device such as a PC card or a CF card having a wireless communication function. CF (compact flash) is a registered trademark.

  FIG. 11 is a schematic perspective view showing an example of a card type device. The card-type device 40 has a wireless communication function. The card-type device 40 includes a circuit board 41, a flat housing 42 that houses the circuit board 41, and a radio wave that is disposed outside the housing 42. And an antenna structure 43 that performs wireless communication. An antenna rotation shaft 44 is formed on the base end side of the antenna structure 43, and a through hole for inserting the antenna rotation shaft 44 from the outside to the inside of the housing 42 is provided in the side wall portion of the housing 42. Yes. A bearing portion (not shown) that receives the antenna rotation shaft 44 is provided inside the housing 42. In the configuration of the card-type device 40, the antenna structure 43 can be rotated about the antenna rotation shaft 44 as a rotation shaft. For example, when the card-type device 40 is used by being inserted into a card slot provided in an information terminal device such as a personal computer, the antenna structure 43 is attached to the housing 42 as shown by a chain line in FIG. It is rotated and displaced in the direction to stand up with respect to the upper surface of the. Thereby, the sensitivity of transmission / reception of radio waves can be increased. Further, when the card-type device 40 is taken out from the card slot of the information terminal device and carried, for example, the antenna structure 43 is rotationally displaced and stored in a tilted state as shown by a solid line in FIG. The card-type device 40 can be easily carried.

JP 2001-69029 A JP 2003-318767 A JP 2001-243435 A

  In the configuration of the card-type device 40 shown in FIG. 11, for example, when the card-type device 40 is inserted into a card slot of an information terminal device and used, the antenna-type structure 43 is rotated in the direction in which the antenna structure 43 is manually raised. For example, when the use of the card-type device 40 is finished, the antenna structure 43 is manually rotated and displaced in the direction of tilting. As described above, since the antenna structure 43 is rotationally displaced manually, it is troublesome.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a card type device that improves the usability by automating the turning operation of the antenna structure.

In order to achieve the above object, the present invention has the following configuration as means for solving the above problems. That is, the present invention provides a card-type device with a wireless communication function in which a circuit board is housed in a flat housing.
An antenna structure disposed outside the housing for wireless radio communication;
A rotating shaft for rotating and displacing the antenna structure in an operating range between a state where the antenna structure stands with respect to the upper surface of the housing and a retracted storage state;
An antenna driving motor that applies rotational torque to the rotational shaft to rotationally displace the antenna structure;
An antenna standing-up circuit unit that receives a wireless communication start signal and energizes the antenna driving motor with a current for raising the antenna structure to rotate and displace the antenna structure in the standing direction;
An antenna standing-up detector that detects that the antenna structure has been turned and displaced to a final turning position in a standing direction with a predetermined setting;
A stand-up completion motor energization stop unit for stopping current energization to the antenna driving motor after detecting that the antenna structure is rotated and displaced to the final rotation position in the set up direction based on information from the antenna stand-up detection unit; ,
An antenna storage circuit unit that receives a radio communication end signal and applies a current in a direction opposite to the current for standing up the antenna structure to the antenna drive motor to rotate and displace the antenna structure in a retracted direction; ,
A storage completion motor energization stop unit that stops current energization to the antenna drive motor when detecting that a predetermined storage completion condition is satisfied during energization of the antenna drive motor by the antenna storage circuit unit; ,
It is characterized by being provided.

  According to the present invention, the antenna driving motor that applies the rotational torque to the rotating shaft of the antenna structure is provided, and the antenna driving motor is energized by receiving a wireless communication start signal to enclose the antenna structure. The antenna standing-up circuit unit that automatically stands up from the top surface of the antenna and the antenna structure is automatically stored by receiving a wireless communication end signal and applying a current in the opposite direction to the antenna drive motor during the standing-up rotation. An antenna housing circuit portion that is rotationally displaced in the direction is provided. With this configuration, in the card-type device of the present invention, the antenna structure automatically stands up when starting wireless communication, and automatically when the wireless communication ends. Will be stored. Therefore, there is no hassle of manually raising the antenna structure when starting wireless communication or manually retracting and storing the antenna structure when wireless communication is terminated, improving the usability of the card-type device Can be made.

  In the card type device of the present invention, since the antenna structure is automatically rotated and displaced, there is no need to manually rotate and displace the antenna structure. A structure for facilitating the rotational displacement of the body manually is unnecessary, and the structure of the card type device can be simplified as compared with the structure provided with such a structure.

  Furthermore, when the antenna structure is manually rotated and displaced, a situation may occur in which the antenna structure is damaged due to an error in force adjustment or the like. On the other hand, in the card-type device of the present invention, it is not necessary to manually rotate the antenna structure by automatically rotating and displacing the antenna structure. Thereby, the failure occurrence rate of the antenna structure resulting from the above-described manual operation can be reduced.

  Furthermore, in the card-type device of the present invention, when the antenna structure is rotated to the final rotation position in the standing direction set by the rotational displacement in the standing direction of the antenna structure, current is supplied to the antenna driving motor. It has a configuration that automatically stops. For this reason, the antenna driving motor can be energized only for a short time necessary for the antenna structure to stand up. Thereby, power saving can be achieved.

  Furthermore, a configuration is provided in which the current supply to the antenna driving motor is automatically stopped when the antenna structure is tilted and rotated to the storage position due to the rotational displacement in the storage direction of the antenna structure. For this reason, it is possible to energize the antenna driving motor only for a short time necessary for housing the antenna structure. Thereby, the power consumption of the antenna driving motor can be suppressed, and power saving can be achieved.

  A stopper is provided to stop the rotation displacement of the antenna structure in the standing direction when the antenna structure is rotated and displaced to the final rotation position in the standing direction set in advance by the circuit operation of the antenna standing circuit. With this configuration, the antenna structure can be maintained in the standing state by stopping the rotational displacement in the standing direction at the final rotating position in the set standing direction with a simple configuration.

  By having a configuration with a rotation torque amplification transmission unit that amplifies the rotation torque from the antenna drive motor and transmits it to the rotating shaft, it is possible to drive a motor with a small driving force without worrying about insufficient motor power. It can be arranged as a motor. In other words, since a motor having a small driving force is smaller than a motor having a large driving force, a small motor can be provided as an antenna driving motor. Thereby, it becomes easy to cope with the downsizing of the card type device, and it is possible to expand the space in which the components can be arranged inside the card type device.

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

  FIG. 1A shows a simplified schematic diagram of the card-type device of the first embodiment, and FIG. 1B schematically shows the card-type device of FIG. 1A as viewed from above. FIG. 2 is a schematic exploded view of the card-type device of the first embodiment. The card-type device 1 has a wireless communication function. The card-type device 1 includes a circuit board 2, a flat housing 3 that accommodates the circuit board 2, and a wireless radio wave that is disposed outside the housing 3. And an antenna structure 4 for performing communication. The card-type device 1 is inserted into a card slot provided in an information terminal device such as a personal computer, for example, and can be electrically connected to the information terminal device to exchange signals. That is, the card type device 1 is provided with external connection means (not shown) for electrically connecting to the information terminal device when inserted into the card slot of the information terminal device. The external connection means has various configurations such as a connector, for example, and the card type apparatus 1 is provided with an external connection means having an appropriate configuration according to, for example, specifications. The card-type device 1 has, for example, a function for transmitting a wireless transmission signal received from an information terminal device via an external connection means from the antenna structure 4 to a wireless communication partner, and a signal received by the antenna structure 4 Is provided to the information terminal device via an external connection means.

  In the first embodiment, the housing 3 includes a front cover portion 5 that covers the front side of the circuit board 2 and a back cover portion 6 that covers the back side of the circuit board 2. The front-side cover 5 protrudes above the upper surface of the front-side cover 5 at the edge on one end, which is the rear end when the card-type device 1 is inserted into the card slot of the information terminal device. The protruding wall 5A is formed.

  The antenna structure 4 includes an antenna body (not shown) that performs radio wave radio communication (transmission and reception) and an antenna cover 7 that protects the antenna body. Note that the antenna main body has a configuration capable of performing wireless communication of radio waves in a predetermined frequency band. There are various antenna configurations for performing radio communication of such radio waves. Here, the antenna body may have any of these configurations, and the description thereof is omitted.

  In the first embodiment, the antenna structure 4 has a shape that extends in the width direction perpendicular to the insertion direction of the card-type device 1. Attachment portions 4a and 4b projecting in a direction substantially orthogonal to the respective are formed. The length dimension in the horizontal width direction from the left end surface of the attachment portion 4a shown in FIG. 1 or 2 to the right end surface of the attachment portion 4b is from the left wall portion of the protruding wall 5A of the front cover portion 5 to the right wall portion. It is shorter than the length dimension. A protrusion 8a (see, for example, FIG. 1B) protruding leftward is formed on the left end surface of the attachment portion 4a, and a protrusion 8b protruding rightward is formed on the right end surface of the attachment portion 4b. . Further, a concave portion or a hole portion 9a that fits into the protruding portion 8a of the attachment portion 4a is formed in the left side wall portion of the protruding wall 5A of the front side cover portion 5. Moreover, the recessed part or hole 9b which fits into the protrusion part 8b of the attaching part 4b is formed in the right side wall part of 5 A of protrusion walls.

  By fitting the protrusions 8a and 8b of the mounting portions 4a and 4b of the antenna structure 4 into the corresponding recesses or holes 9a and 9b of the protruding wall 5A, the antenna structure 4 is rotated as shown below. It is attached to the front side cover part 5 in a freely movable state. That is, in the first embodiment, the antenna structure 4 is a dotted line in the perspective view of FIG. 3A and the cross-sectional view of FIG. 3C (corresponding to the AA portion of FIG. 3B). As shown in FIG. 3, the housing 3 is lying down on the top surface of the housing 3, and the top surface of the housing 3 is shown in the perspective view of FIG. 3B and the solid line in the sectional view of FIG. However, it can be rotated and displaced in the operating range between the upright state and the upright state. In the first embodiment, the rotation angle range θ when the antenna structure 4 is rotated and displaced from the stowed state to the final rotation position in the upright direction is about 120 °. When the antenna structure 4 is rotationally displaced to a predetermined final rotation position in the standing direction as shown by the solid line in FIG. 3C, the antenna structure 4 is engaged with the protruding wall 5A of the front cover portion 5. It stops and the rotation displacement of the antenna structure 4 stops. That is, the protruding wall 5A serves as a stopper that stops the standing and turning displacement of the antenna structure 4 when the antenna structure 4 is turned and displaced to a predetermined turning final position in the standing direction.

  A shaft 11 is formed on the right end surface of the mounting portion 4a of the antenna structure 4 so as to extend rightward in the lateral direction, and a shaft 11 is formed on the left end surface of the mounting portion 4b so as to extend in the left direction. , Respectively. The front cover portion 5 is provided with a bearing portion (not shown) of the shaft 11 and a bearing portion (not shown) of the rotating shaft 12. In the first embodiment, a protective cover 14 that protects the shaft 11 and the rotating shaft 12 is attached to the front cover portion 5 in a region between the attachment portions 4a and 4b.

  In the first embodiment, the shaft 11 is electrically connected to the antenna body of the antenna structure 4. A high frequency circuit 15 for wireless communication is provided on the circuit board 2 accommodated in the housing 3. For example, the radio communication high-frequency circuit 15 converts (modulates) a radio transmission signal supplied from an information terminal device into a signal suitable for radio communication, or supplies a signal received by radio to the information terminal device. It has a circuit configuration for converting (demodulating) it into a signal suitable for this. Further, the circuit board 2 is provided with power feeding means 16 for electrically connecting the shaft 11 to the radio communication high frequency circuit 15. As a result, the radio transmission signal output from the radio communication high-frequency circuit 15 is transmitted to the antenna body of the antenna structure 4 via the power feeding means 16 and the shaft 11 and is wirelessly transmitted by the antenna body. The signal received by the antenna body is transmitted to the radio communication high-frequency circuit 15 via the shaft 11 and the power feeding means 16 and converted into a signal suitable for supply to the information terminal device, and the converted signal. Is output to the information terminal device. Note that there are various configurations of the power supply means 16, and here, the configuration is not particularly limited as long as the shaft 11 and the radio frequency circuit 15 for wireless communication can be electrically connected. A power supply means 16 having an appropriate configuration is provided.

  In the first embodiment, an antenna drive motor 17 is disposed on the circuit board 2. The rotating shaft 17a of the antenna driving motor 17 is connected to the rotating shaft 12 of the antenna structure 4 via a shaft coupling device (coupling (not shown)). For this reason, the rotational torque by the rotational drive of the antenna drive motor 17 is transmitted to the rotating shaft 12 of the antenna structure 4 via the shaft coupling device. Thereby, the rotation shaft 12 rotates and the antenna structure 4 is rotationally displaced.

  The circuit board 2 is provided with a motor control circuit unit 20 for controlling the rotational drive of the antenna driving motor 17. As shown in the block diagram of FIG. 4, the motor control circuit unit 20 includes an antenna standup circuit unit 21, an antenna storage circuit unit 22, a standup completion motor energization stop unit 23, and a storage complete motor energization stop. The unit 24 and the antenna upright detection unit 25 are provided. The antenna rising circuit unit 21 has received the wireless communication start signal from the information terminal device via the external connection means in a state where the card type device 1 is inserted into the card slot of the information terminal device such as a personal computer. When detected, the power supply power supplied via the power input unit Vcc is used to supply a current for raising the antenna structure to the antenna drive motor 17. By driving the antenna driving motor 17 by the rotation operation of the antenna standing circuit 21, the antenna structure 4 stands up with respect to the upper surface of the housing 3 from the storage position lying down on the upper surface of the housing 3. Rotating displacement in the direction

  The antenna standing detection unit 25 is locked to a protruding wall 5A that is a stopper by the rotational displacement of the antenna structure 4 in a predetermined standing direction (in this first embodiment, the antenna structure 4 is rotated and displaced). And a configuration for outputting a standing-up completion signal by detecting that it has been rotated and displaced to a position where it has been moved. The stand-up completion motor energization stop unit 23 receives the stand-up completion signal output from the antenna stand-up detection unit 25 and outputs a motor energization stop signal toward the antenna stand-up circuit unit 21. The antenna standing-up circuit unit 21 has a configuration in which current energization to the antenna driving motor 17 is stopped when the motor energization stop signal is received.

  When the antenna housing circuit unit 22 detects that the card-type device 1 has received a wireless communication end signal from the information terminal device via the external connection means, the antenna storage circuit unit 22 supplies the power source power supplied via the power source input unit Vcc. Utilizing the circuit structure, the antenna driving motor 17 is energized with a current in the direction opposite to the current for raising the antenna structure. By driving the antenna driving motor 17 by the circuit operation of the antenna housing circuit unit 22, the antenna structure 4 is rotated from the standing state to the housed state where the antenna structure 4 is lying down on the upper surface of the housing 3. Displace.

  The storage completion motor energization stop unit 24 outputs a motor energization stop signal toward the antenna storage circuit unit 22 when detecting that a predetermined storage completion condition is satisfied. The antenna housing circuit unit 22 has a configuration to stop current energization to the antenna driving motor 17 in response to the motor energization stop signal.

  FIG. 5 shows a specific example of the motor control circuit unit 20. In the motor control circuit unit 20 shown in FIG. 5, a position detection switch 26 is provided as the antenna upright detection unit 25. The position detection switch 26 performs a switch-on operation when the antenna structure 4 is in the final rotation position in the set up direction, and performs a switch-off operation when the antenna structure 4 is in any other position. One end of the position detection switch 26 is connected to an input portion Vs for an H signal having a predetermined high level (H) voltage level. The other end of the position detection switch 26 is connected to an input unit 27 a that is one of the input units of the AND circuit 27. A connection portion between the input portion 27a of the AND circuit 27 and the position detection switch 26 is grounded via a resistor portion R1. Another input unit 27b of the AND circuit 27 is connected to a first external signal input unit P1 to which a signal from an information terminal device such as a personal computer to which the card type device 1 is attached is applied.

  The output part of the AND circuit 27 is connected to the base of the PNP transistor element Tr0 via the resistor part R2. The emitter of the PNP transistor element Tr0 is connected to the power input Vcc, the collector of the PNP transistor element Tr0 is connected to the collector of the NPN transistor element Tr1, and the collector of the NPN transistor element Tr3. The emitter of the NPN transistor element Tr1 is connected to the emitter of the PNP transistor element Tr4 via the antenna driving motor 17. The emitter of the NPN transistor element Tr3 is connected to the emitter of the PNP transistor element Tr2 through the antenna driving motor 17. The base of the NPN transistor element Tr1 and the base of the PNP transistor element Tr2 are commonly connected to one end of the resistor R3, and the other end of the resistor R3 is connected to the first external signal input P1. Yes. Further, the connection portion between the resistor portion R3 and the first external signal input portion P1 is connected to the input portion of the NOT circuit 28. The base of the NPN transistor element Tr3 and the base of the PNP transistor element Tr4 are commonly connected to one end of the resistor R5, and the other end of the resistor R5 is connected to the output of the NOT circuit 28. . The collector of the PNP transistor element Tr2 and the collector of the PNP transistor element Tr4 are commonly connected to the collector of the NPN transistor element Tr5, and the emitter of the NPN transistor element Tr5 is grounded. The base of the NPN transistor element Tr5 is connected to the second external signal input part P2 via the resistor part R4. The second external signal input unit P2 is a signal input unit to which a signal from an information terminal device such as a personal computer to which the card type device 1 is attached is different from the first external signal input unit P1.

  The motor control circuit unit 20 shown in FIG. 5 is configured as described above. The motor control circuit unit 20 performs circuit operations as follows. For example, when the card-type device 1 is not attached to an information terminal device such as a personal computer, and the antenna structure 4 is in the retracted state due to the upper surface of the housing 3, the position detection that constitutes the antenna upright detection unit 25 is detected. The switch 26 is in a switch-off state. As a result, the voltage level of the input unit 27a of the AND circuit 27 becomes low level (L). Further, since the card-type device 1 is not signal-connected to the information terminal device, signals from the information terminal device are not applied to the first external signal input unit P1 and the second external signal input unit P2, and the first and first The voltage level of each of the external signal input portions P1 and P2 of 2 is low level (L). In such a state, since the voltage levels of the input units 27a and 27b of the AND circuit 27 are both L, the AND circuit 27 outputs a signal having a voltage level of L level. Therefore, the PNP transistor element Tr0 is turned on. Further, since the base voltage level of the NPN transistor element Tr5 based on the voltage level of the second external signal input part P2 is L, the NPN transistor element Tr5 is in the OFF state. Depending on the on / off operation state of the transistor elements Tr0 and Tr5 as described above, the energization of the current in the path through the PNP transistor element Tr0, the antenna driving motor 17, and the NPN transistor element Tr5 in order from the power input portion Vcc side is performed. No.

  When the card type device 1 is inserted into the card slot of the information terminal device and the card type device 1 is electrically connected to the information terminal device, the information terminal device uses the card type device 1 When starting wireless communication, a wireless communication start signal is output from the information terminal device toward the card-type device 1. In the motor control circuit unit 20 of the card type device 1, the voltage levels of the first and second external signal input units P1 and P2 become high level (H) based on the wireless communication start signal. As a result, as shown in FIG. 6A, the base voltage level of the NPN transistor element Tr5 becomes H, and the NPN transistor element Tr5 is turned on. Since the voltage level of the input part 27b of the AND circuit 27 is H and the voltage level of the input part 27a of the AND circuit 27 is L due to the position detection switch 26 being turned off, the voltage level of the output part of the AND circuit 27 is Thus, the PNP transistor element Tr0 is turned on. Furthermore, the voltage levels of the bases of the transistor elements Tr1 and Tr2 are both H based on the voltage level (H) of the first external signal input part P1. Therefore, the NPN transistor element Tr1 is turned on and the PNP transistor element Tr2 is turned off. Moreover, since the voltage level of the input part of the NOT circuit 28 based on the voltage level (H) of the first external signal input part P1 is H, the voltage level of the output part of the NOT circuit 28 becomes L, and thereby The voltage levels of the bases of the transistor elements Tr3 and Tr4 are both L. Therefore, the NPN transistor element Tr3 is turned off and the PNP transistor element Tr4 is turned on.

  Therefore, the motor control circuit unit 20 includes a PNP transistor element Tr0 and an NPN transistor element based on the power supply voltage supplied to the power supply input unit Vcc, as indicated by the current path I in FIG. Current flows through a path that passes through Tr1, the antenna driving motor 17, the PNP transistor element Tr4, and the NPN transistor element Tr5 in this order. The antenna driving motor 17 is driven by the current supply to the antenna driving motor 17 to apply a rotating torque for raising the antenna structure to the rotating shaft 12. Thereby, the antenna structure 4 starts to be rotationally displaced in the standing direction.

  That is, in the motor control circuit unit 20 shown in FIG. 5, the PNP type transistor element Tr0, the NPN type transistor element Tr1, the antenna driving motor 17, the PNP type transistor element Tr4, and the NPN type transistor element Tr5 from the power input part Vcc side. An antenna standing-up circuit section (21) for causing the antenna driving motor 17 to pass a current for standing up the antenna structure to turn and displace the antenna structure 4 in the standing direction by a circuit section for passing current through It is configured.

  When the antenna structure 4 is rotated and displaced to the final rotation position in the set up direction (that is, the position where the antenna structure 4 is locked to the protruding wall 5A) by the circuit operation of the antenna rising circuit portion, the position detection is performed. The switch 26 is turned on. As a result, in the motor control circuit unit 20, as shown in FIG. 6B, the H signal is applied from the H signal input unit Vs to the input unit 27a of the AND circuit 27 through the position detection switch 26. For this reason, both the voltage levels of the input parts 27a and 27b of the AND circuit 27 are H, and the voltage level of the output part of the AND circuit 27 is H. As a result, the voltage level of the base of the PNP transistor element Tr0 becomes H, and the PNP transistor element Tr0 is turned off. Therefore, the current supply from the power input portion Vcc to the antenna driving motor 17 side is stopped.

  That is, in the motor control circuit unit 20 shown in FIG. 5, the AND circuit 27 constitutes a standing-up completion motor energization stop unit (23). That is, the position detection switch 26 serving as the antenna upright detection unit outputs the H signal from the H signal input unit Vs side to the AND circuit 27 as a standup completion signal by the switch-on operation, and the AND circuit 27 (standup completion motor energization). The stop unit) receives the standing-up completion signal (H signal) and outputs an H signal as a motor energization stop signal toward the base of the PNP transistor element Tr0 of the antenna standing-up circuit unit 21. By applying the H signal to the base of the PNP transistor element Tr0, as described above, the PNP transistor element Tr0 is turned off, and the current drive of the antenna drive motor 17 by the antenna standing circuit 21 is stopped.

  When the information terminal device performing wireless communication by the card type device 1 ends the wireless communication, a wireless communication end signal is added from the information terminal device. In response to the wireless communication end signal, the motor control circuit unit 20 is configured such that the voltage level of the first external signal input unit P1 is L and the voltage level of the second external signal input unit P2 is H. . As a result, as shown in FIG. 7A, the base voltage level of the NPN transistor element Tr5 becomes H, and the NPN transistor element Tr5 is turned on. Further, since the voltage level of the input part 27b of the AND circuit 27 becomes L based on the voltage level L of the first external signal input part P1, the voltage level of the output part of the AND circuit 27 becomes L. The type transistor element Tr0 is turned on. Further, based on the voltage level L of the first external signal input part P1, the NPN transistor element Tr1 is turned off and the PNP transistor element Tr2 is turned on. Furthermore, the NPN transistor element Tr3 is turned on and the PNP transistor element Tr4 is turned off by the voltage level H of the output part of the NOT circuit 28 based on the voltage level L of the first external signal input part P1.

  Therefore, the motor control circuit unit 20 includes a PNP transistor element Tr0 and an NPN transistor element based on the power supply voltage supplied to the power supply input unit Vcc as shown in the current path I of FIG. Current flows through a path that passes through Tr3, the antenna drive motor 17, the PNP transistor element Tr2, and the NPN transistor element Tr5 in this order. That is, a current in the direction opposite to the current when the antenna structure 4 is rotationally displaced in the standing direction is supplied to the antenna driving motor 17. The antenna drive motor 17 is driven by the energization of current to the antenna drive motor 17 as described above, and rotational torque for housing the antenna structure is applied to the rotary shaft 12. Thereby, the antenna structure 4 starts to be rotationally displaced in the storage direction.

  That is, in the motor control circuit unit 20 shown in FIG. 5, the PNP type transistor element Tr0, the NPN type transistor element Tr3, the antenna driving motor 17, the PNP type transistor element Tr2 and the NPN type transistor element Tr5 from the power input part Vcc side. The antenna drive motor 17 is made to turn in the direction in which the antenna structure 4 is stowed down by passing a current in the direction opposite to the current for raising the antenna structure to the antenna drive motor 17 by the circuit portion for passing current through An antenna housing circuit portion (22) is configured.

  The position detection switch 26 is turned off by the start of the rotational displacement of the antenna structure 4 in the storage direction, and the voltage level of the input unit 27a of the AND circuit 27 is switched from H to L. Even when the voltage level of the input unit 27a is switched in this way, the voltage level of the output unit of the AND circuit 27 remains L, so that the current supply to the antenna driving motor 17 by the antenna housing circuit unit is continued. The

  When all the wireless communication operations of the information terminal device are completed, the voltage level of not only the first external signal input unit P1 but also the second external signal input unit P2 becomes L level. As a result, the NPN transistor element Tr5 is turned off, and the current supply to the antenna driving motor 17 by the antenna housing circuit unit is stopped.

  That is, in the motor control circuit unit 20 shown in FIG. 5, the storage completion condition is when the voltage level of the second external signal input unit P2 becomes L. The second external signal input unit P2 constitutes a storage completion motor energization stop unit (24). In other words, the second external signal input unit P2 applies the L signal to the base of the NPN transistor element Tr5 as a motor energization stop signal when a predetermined storage completion condition is satisfied, and turns off the NPN transistor element Tr5. Thus, current supply to the antenna driving motor 17 by the antenna housing circuit unit is stopped.

  The card-type device 1 according to the first embodiment is configured as described above. As a result, the antenna structure 4 can be automatically erected when starting wireless communication, and the antenna structure 4 can be automatically tilted and stored when ending wireless communication. Can be improved.

  The second embodiment will be described below. In the description of the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and duplicate descriptions of common portions are omitted.

  In the second embodiment, there is provided a rotational torque amplification and transmission section as described below for amplifying the rotational torque from the antenna driving motor 17 and transmitting it to the rotating shaft 12. The configuration of the second embodiment other than this configuration is the same as that of the first embodiment.

  FIG. 8 schematically shows a specific example of the rotational torque amplification transmission unit. The rotational torque amplification transmission unit 30 shown in FIG. 8 includes gears 31 and 32 that mesh with each other. The gear 31 is mounted on the rotating shaft 17a of the antenna driving motor 17 and is configured to rotate as the rotating shaft 17a rotates. The gear 32 is integrally mounted on the rotating shaft 12, and is rotated by the rotation of the gear 31 driven by the antenna driving motor 17, and rotational torque from the antenna driving motor 17 side is applied to the rotating shaft 12. introduce. In this example, the number of teeth of the gear 32 is larger than the number of teeth of the gear 31, and the gears 31, 32 constitute a reduction gear structure. As a result, the rotational torque from the antenna driving motor 17 can be amplified and transmitted to the rotating shaft 12.

  FIG. 9A shows another specific example of the rotational torque amplification and transmission unit 30. In the example shown in FIG. 9A, the rotational torque amplification transmission unit 30 includes rubber pulleys 33 and 34 that are in pressure contact with each other. The rubber pulley 33 is fixed to the peripheral surface of the rotating shaft 17 a of the antenna driving motor 17. The rubber pulley 34 is fixed to the peripheral surface of the rotating shaft 12. The outer peripheral surface of the rubber pulley 34 is in contact with the outer peripheral surface of the rubber pulley 33 while being pressed against each other. The rubber pulley 34 is rotated by the rotation of the rotating shaft 17 a (rubber pulley 33) driven by the antenna driving motor 17. The rotational torque from the antenna driving motor 17 side is transmitted to the rotating shaft 12. In this example, since the radius of the outer peripheral surface of the rubber pulley 34 is larger than the radius of the outer peripheral surface of the rubber pulley 33, the rubber pulleys 33 and 34 amplify the rotational torque from the antenna drive motor 17. It can be transmitted to the rotating shaft 12.

  FIG. 9B shows still another specific example of the rotational torque amplification transmission unit 30. In the example shown in FIG. 9B, the rotational torque amplification transmission unit 30 is provided on the outer peripheral surface of the rotating shaft 12 and the rubber pulley 33 fixed to the peripheral surface of the rotating shaft 17 a of the antenna driving motor 17. The rubber pulley 34 is fixed, and a belt (endless belt) 35 connecting the rubber pulleys 33 and 34 is provided. The belt 35 moves along with the rotation of the rubber pulley 33 driven by the antenna driving motor 17 and rotates the rubber pulley 34 in conjunction with the rotation of the rubber pulley 34, thereby rotating the rotation shaft 12. In this example, since the radius of the outer peripheral surface of the rubber pulley 34 is larger than the radius of the outer peripheral surface of the rubber pulley 33 as in the example of FIG. 9A, the rubber pulleys 33 and 34 and the belt 35 are The rotational torque from the antenna driving motor 17 can be amplified and transmitted to the rotating shaft 12.

  In the second embodiment, since the rotational torque amplification transmission unit 30 is provided, the following effects can be obtained. For example, in a card type device 1 whose size is limited by a standard such as a PC card, the antenna driving motor 17 can be installed only when it is small, but the small motor has a small driving force. As it is, there is a possibility that a situation may occur in which sufficient rotational torque for rotationally displacing the antenna structure 4 cannot be applied from the antenna driving motor 17 to the rotational shaft 12. In contrast, in the second embodiment, the rotational torque amplification transmission unit 30 is provided, and the rotational torque amplification transmission unit 30 amplifies the rotational torque of the antenna driving motor 17 and applies it to the rotating shaft 12. Therefore, even if a small motor is provided as the antenna driving motor 17, the antenna structure 4 can be satisfactorily rotated and displaced without worrying about insufficient motor power.

  In addition, this invention is not limited to the form of each 1st or 2nd embodiment, Various embodiments can be taken. For example, in each of the first and second embodiments, the example in which the position detection switch 26 is provided as the antenna rising detection unit has been described. For example, instead of the position detection switch 26, the antenna rising having the following configuration is provided. A detection unit may be provided. That is, when the antenna structure 4 is rotationally displaced to the final rotational position in the set upright direction, the antenna structure 4 cannot be locked by the protruding wall 5A and can continue the rotational displacement. For this reason, the load of the antenna driving motor 17 is increased, and the power consumption of the antenna driving motor 17 is changed, thereby increasing the amount of current flowing in the antenna standing-up circuit unit. You may provide the antenna standup detection part using this increase in electric current amount. For example, when the antenna standing-up detection unit detects the energization current amount of the antenna standing-up circuit unit and detects that the energization current amount has increased above the threshold value for detecting the antenna standing-up completion obtained through experiments or the like. The antenna structure is configured to detect that the antenna structure has been rotationally displaced to the final rotational position in the set upright direction.

  Further, even when the antenna structure 4 falls to the upper surface of the housing 3 due to the rotational displacement of the antenna structure 4 in the housing direction, the antenna structure 4 is locked to the upper surface of the housing 3. As a result, the rotational displacement cannot be continued, thereby increasing the load on the antenna driving motor 17 and changing the power consumption of the antenna driving motor 17. For this reason, the amount of current energized in the antenna housing circuit portion increases. From this, for example, the amount of current flowing in the antenna housing circuit is detected, and it is detected that the detected current amount has increased beyond the threshold value for detecting antenna housing completion obtained in advance through experiments or the like. In this case, it may be determined that the storage completion condition is satisfied, and the current supply to the antenna driving motor 17 is stopped.

  Further, in each of the first and second embodiments, the antenna structure 4 is in the housed state in which the antenna structure 4 is lying down on the upper surface of the housing 3. For example, the schematic cross-sectional view of FIG. It is good also considering the state which has fallen on the back as shown by the dotted line of this as an accommodation state. In the example shown in FIG. 10, when the final turning position of the antenna structure 4 in the standing direction is the position shown by the solid line in FIG. 10, the current for raising the antenna structure to the antenna driving motor 17 is It is conceivable that the antenna structure 4 is rotated and displaced by its own weight by stopping the energization. In such a case, even after the current energization to the antenna driving motor 17 is stopped. It is preferable to take measures for maintaining the antenna structure 4 in the set upright position.

  Furthermore, instead of the antenna structure 4 shown in each of the first and second embodiments, the first and second embodiments can be used also when the antenna structure 43 as shown in FIG. The antenna structure 43 may be configured to automatically rotate and displace using the antenna driving motor 17 similar to the embodiment. In this case, the rotating shaft of the antenna structure may be configured to also serve as a function for electrically connecting the antenna body and the radio communication high-frequency circuit.

  Furthermore, in each of the first and second embodiments, a stopper that stops the rotational displacement of the antenna structure 4 in the standing direction when the antenna structure 4 is rotationally displaced to the final standing position in the standing direction. However, for example, when other means for stopping the rotational displacement of the antenna structure 4 in the standing direction is provided, the stopper need not be provided.

It is a model figure for demonstrating the card type apparatus of the example of 1st Embodiment. FIG. 2 is an exploded view of the card type device shown in FIG. 1. It is a figure for demonstrating the example of rotation displacement of the antenna structure of the card-type apparatus shown by FIG. It is a block block diagram for demonstrating the example of a circuit structure for performing drive control of the motor for antenna drive provided in the card type apparatus of 1st Embodiment. It is a circuit diagram showing the specific example of the circuit structure for performing drive control of the motor for antenna drive. FIG. 6 is a diagram for explaining a circuit operation example of the circuit of FIG. 5. FIG. 6 is a diagram for explaining an example of the circuit operation of the circuit of FIG. 5 together with FIG. 6. It is a model figure for demonstrating one specific example of the rotational torque amplification transmission part which comprises the card type apparatus of 2nd Embodiment. It is a model figure for demonstrating another specific example of a rotational torque amplification transmission part. It is a figure for demonstrating other example embodiments. It is a model figure for demonstrating the example of 1 form of a card-type apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Card type apparatus 2 Circuit board 3 Case 4 Antenna structure 12 Rotating shaft 21 Antenna standing circuit part 22 Antenna storage circuit part 23 Standing completion motor energization stop part 24 Storage completion motor energization stop part 25 Antenna standing circuit part 30 Rotation torque amplification transmission part

Claims (3)

In a card type device with a wireless communication function in which a circuit board is housed in a flat housing,
An antenna structure disposed outside the housing for wireless radio communication;
A rotating shaft for rotating and displacing the antenna structure in an operating range between a state where the antenna structure stands with respect to the upper surface of the housing and a retracted storage state;
An antenna driving motor that applies rotational torque to the rotational shaft to rotationally displace the antenna structure;
An antenna standing-up circuit unit that receives a wireless communication start signal and energizes the antenna driving motor with a current for raising the antenna structure to rotate and displace the antenna structure in the standing direction;
An antenna standing-up detector that detects that the antenna structure has been turned and displaced to a final turning position in a standing direction with a predetermined setting;
A stand-up completion motor energization stop unit for stopping current energization to the antenna driving motor after detecting that the antenna structure is rotated and displaced to the final rotation position in the set up direction based on information from the antenna stand-up detection unit; ,
An antenna storage circuit unit that receives a radio communication end signal and applies a current in a direction opposite to the current for standing up the antenna structure to the antenna drive motor to rotate and displace the antenna structure in a retracted direction; ,
A storage completion motor energization stop unit for stopping current energization to the antenna drive motor when detecting that a predetermined storage completion condition is satisfied during energization of the antenna drive motor by the antenna storage circuit unit; ,
A card-type device characterized in that a card-type device is provided.   A stopper is provided to stop the rotation displacement of the antenna structure in the standing direction when the antenna structure is rotated and displaced to the final rotation position in the standing direction set in advance by the circuit operation of the antenna standing circuit. The card-type device according to claim 1, wherein   3. A card-type device according to claim 1, further comprising a rotational torque amplification and transmission unit for amplifying rotational torque from the antenna driving motor and transmitting the amplified rotational torque to the rotating shaft.

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