JP2014027497A - Mobile communication terminal, communication management program, and communication management method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to appropriately execute radio communication between frames.SOLUTION: A mobile phone 10 comprises a first frame 12a, second frame 12b, and the like connected by a slide mechanism. First to third communication units are installed inside the first frame 12a; and a fourth communication unit is installed inside the second frame 12b. Data is transmitted/received between each of the first to third communication units and the fourth communication unit by short-range radio communication. The fourth communication unit transmits a confirmation signal at predetermined intervals, and radio field strength is recorded when the first communication unit receives the confirmation signal. On the basis of the radio field strength, a communication unit for communication for communicating with the fourth communication unit is set.

Description

  The present invention relates to a mobile communication terminal, a communication management program, and a communication management method, and particularly to a mobile communication terminal, a communication management program, and a communication management method having two housings.

An example of a portable communication terminal having two housings is disclosed in Patent Document 1. The mobile phone of Patent Document 1 has a first housing portion and a second housing portion that are connected via a hinge, and the two housing portions rotate horizontally. One internal wireless communication antenna is mounted on the first casing, and two internal wireless communication antennas are mounted on the second casing. Of the two internal wireless communication antennas, one internal wireless communication antenna is placed in an open state so as to face the internal wireless communication antenna of the first casing, and the other internal wireless communication antenna is It is arranged so as to face the internal wireless communication antenna of the first casing in the closed state. The open / closed state of the mobile phone can be detected by the open / closed state detection unit. Then, in accordance with the detected state, the two internal wireless communication antennas mounted on the second housing unit are switched. Thereby, even if it is an open state and a closed state, internal wireless communication of each housing | casing part is performed efficiently.
JP 2006-33355 A [H01Q 1/52, H01Q 1/24, H04M 1/02]

  However, in the cellular phone of Patent Document 1, no consideration is given to an intermediate state that is neither an open state nor a closed state. For this reason, when the mobile phone is used in an intermediate state, the efficiency of data communication between the casings is deteriorated.

  Therefore, a main object of the present invention is to provide a novel portable communication terminal, communication management program, and communication management method.

  Another object of the present invention is to provide a mobile communication terminal, a communication management program, and a communication management method capable of appropriately executing wireless communication between casings.

  The present invention employs the following configuration in order to solve the above problems. The reference numerals in parentheses, supplementary explanations, and the like indicate the corresponding relationship with the embodiments described in order to help understanding of the present invention, and do not limit the present invention.

  1st invention is a portable communication terminal which has the 2nd housing | casing attached to the 1st housing | casing and a 1st housing | casing so that sliding is possible, Comprising: The 1st housing | casing WHEREIN: Confirmation signals are transmitted from the plurality of second communication units and the first communication unit provided in the second casing so as to be parallel to the sliding direction of the first communication unit and the second casing provided in the case. And a setting unit for setting a second communication unit for communicating with the first communication unit from among the plurality of second communication units based on the radio wave intensity of the confirmation signal received by the second communication unit. A portable communication terminal.

  In the first invention, the mobile communication terminal (10: reference numeral exemplifying a corresponding part in the embodiment; hereinafter the same) is a so-called “sliding” terminal, and the first casing (12b, 12a). And a second housing (12a, 12b). Therefore, the first housing and the second housing are connected by a slide mechanism. For example, the first communication unit and the plurality of second communication units perform short-range wireless communication. The first communication unit (72, 50) is provided inside the first housing at one end in the sliding direction of the first housing, and the plurality of second communication units (50a-50c, 72a-72b) are the second ones. It is provided inside the second housing so as to be parallel to the sliding direction of the housing. The transmission control unit (30, S1) transmits a confirmation signal from the first communication unit, for example, every predetermined time. The setting unit (30, S11, S15, S17) is based on the radio field intensity of the confirmation signal received by the second communication unit (50a, 72a) provided at one end among the plurality of second communication units, for example. The second communication unit closest to the first communication unit is specified, and the second communication unit is set as the second communication unit for communicating with the first communication unit.

  According to the first invention, it is possible to appropriately execute wireless communication between the casings.

  A second invention is dependent on the first invention, and includes a magnetic sensor provided in the first housing and a magnet provided in the second housing so as to be closest to the magnetic sensor in the closed state. Further, the setting unit sets a second communication unit for communicating with the first communication unit from among the plurality of second communication units when the magnetic sensor detects magnetism of the magnet.

  In the second invention, the magnetic sensor (24) is provided inside one end of the first housing, and the magnet (84) is located inside the second housing so as to be closest to the magnetic sensor in the closed state. Provided. And a setting part sets the 2nd communication part for communicating with a 1st communication part, when a magnetic sensor detects the magnetism of a magnet, ie, a closed state.

  According to the second aspect, since the transmission frequency of the confirmation signal can be suppressed, the power consumed by transmitting / receiving the confirmation signal can be suppressed.

  According to a third aspect of the invention, the first housing (12b, 12a), the second housing (12a, 12b) that is slidably attached to the first housing, and one end of the first housing in the sliding direction are A plurality of second communication units (50a-50c) provided in the second housing so as to be parallel to the sliding direction of the first communication units (72, 50) and the second housing provided in the one housing. , 72a-72b), the transmission control unit (S1) for transmitting the confirmation signal from the first communication unit to the processor (30) of the mobile communication terminal (10), and the radio wave of the confirmation signal received by the second communication unit It is a communication management program that functions as a setting unit (S11, S15, S17) for setting a second communication unit for communicating with the first communication unit among a plurality of second communication units based on the strength.

  In the third invention, similarly to the first invention, the wireless communication between the cases can be appropriately executed.

  According to a fourth aspect of the invention, the first housing (12b, 12a), the second housing (12a, 12b) slidably attached to the first housing, A plurality of second communication units (50a-50c) provided in the second housing so as to be parallel to the sliding direction of the first communication units (72, 50) and the second housing provided in the one housing. 72a-72b), a communication management method for the mobile communication terminal (10), wherein a confirmation signal is transmitted from the first communication unit (S1), and the radio wave intensity of the confirmation signal received by the second communication unit is Based on this, the second communication unit for communicating with the first communication unit among the plurality of second communication units is set (S11, S15, S17).

  In the fourth invention, similarly to the first invention, the wireless communication between the casings can be appropriately executed.

  5th invention is a portable communication terminal which has the 2nd housing | casing attached to the 1st housing | casing and a 1st housing | casing so that sliding is possible, Comprising: In the end of the sliding direction of a 1st housing | casing, 1st Confirmation from each of the plurality of second communication units and the plurality of second communication units provided in the second casing so as to be parallel to the sliding direction of the first communication unit and the second casing provided in the casing. In order to communicate with the first communication unit from among the plurality of second communication units based on the confirmation signals transmitted from the plurality of second transmission control units received by the transmission control unit and the first communication unit that transmits the signal It is a portable communication terminal provided with the setting part which sets the 2nd communication part.

  In the fifth invention, the mobile communication terminal is a “slide type” terminal as in the first invention, and is connected to the first housing (12b, 12a) and the second housing (12a) connected by the slide mechanism. , 12b). The first communication unit (72, 50) and the second communication unit (50a-50c, 72a-72b) are provided in the first casing and the second casing as in the first invention. The transmission control unit (30, S33) transmits a confirmation signal from each of the plurality of second communication units. For example, every time a confirmation signal transmitted from each second communication unit is received by the first communication unit, the radio wave intensity is recorded in a table or the like. Then, the setting unit (30, S49) sets the second communication unit corresponding to the highest radio wave intensity as the second communication unit for communicating with the first communication unit.

  In the fifth invention, similarly to the first invention, the wireless communication between the cases can be appropriately executed.

  Moreover, the 2nd communication part which communicates with a 1st communication part can be appropriately set by recording the electromagnetic wave intensity corresponding to each of several 2nd communication part.

  According to a sixth aspect of the present invention, the first housing (12b, 12a), the second housing (12a, 12b) that is slidably attached to the first housing, A plurality of second communication units (50a-50c) provided in the second housing so as to be parallel to the sliding direction of the first communication units (72, 50) and the second housing provided in the one housing. 72a-72b), a transmission control unit (S33) for transmitting a confirmation signal from each of the plurality of second communication units, and a plurality of second transmission control units received by the first communication unit. Is a communication management program that functions as a setting unit (S49) for setting a second communication unit for communicating with the first communication unit from among the plurality of second communication units based on the confirmation signal transmitted from.

  In the sixth invention, similarly to the first invention, the wireless communication between the casings can be appropriately executed.

  According to a seventh aspect of the invention, the first housing (12b, 12a), the second housing (12a, 12b) that is slidably attached to the first housing, and one end of the first housing in the sliding direction are A plurality of second communication units (50a-50c) provided in the second housing so as to be parallel to the sliding direction of the first communication units (72, 50) and the second housing provided in the one housing. 72a-72b), and a plurality of second transmission controls received by the first communication unit, wherein a confirmation signal is transmitted from each of the plurality of second communication units (S33). In this communication management method, a second communication unit for communicating with the first communication unit is set from the plurality of second communication units based on the confirmation signal transmitted from the unit (S49).

  In the seventh invention, similarly to the first invention, the wireless communication between the casings can be appropriately executed.

  According to the present invention, it is possible to appropriately execute wireless communication between casings.

  The above object, other objects, features, and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

1A and 1B are external views showing a mobile phone according to an embodiment of the present invention. FIG. 1A shows an external appearance in a closed state, and FIG. 1B shows an external appearance in an open state. 2 is an illustrative view showing one example of an electrical configuration of the mobile phone shown in FIG. 3 is a cross-sectional view showing an example of a position where the transceiver is provided in the mobile phone 10 shown in FIG. 1, FIG. 3 (A) shows a cross-section in a closed state, and FIG. 3 (B) shows an intermediate state. FIG. 3C shows a cross section in an open state. FIG. 4 is an illustrative view showing one example of a memory map of the RAM shown in FIG. FIG. 5 is a flowchart showing an example of communication management processing of the processor shown in FIG. FIG. 6 is an illustrative view showing another example of the electrical configuration of the mobile phone shown in FIG. 7 is a cross-sectional view illustrating another example of the position where the transceiver is provided in the mobile phone 10 illustrated in FIG. 1, FIG. 7A illustrates a cross-section in a closed state, and FIG. FIG. 7C shows a cross section in an open state. FIG. 8 is an illustrative view showing one example of a configuration of a radio wave intensity table stored in the RAM shown in FIG. FIG. 9 is an illustrative view showing another example of the memory map of the RAM shown in FIG. FIG. 10 is a flowchart showing another example of the communication management process of the processor shown in FIG. FIG. 11 is a flowchart showing another example of the communication management process of the processor shown in FIG.

<First embodiment>
1A and 1B, a mobile phone 10 according to an embodiment of the present invention is a so-called “slide type” mobile communication terminal, which includes a main body (first housing 12a) and a lid (first). 2 housings 12b) and a slide mechanism (not shown) for slidably connecting them. The 1st housing | casing 12a and the 2nd housing | casing 12b are planar rectangles, and each thickness is substantially the same.

  Normally, the lid is closed, and the inner surfaces of the first housing 12a and the second housing 12b are not visible as shown in FIG. A state as shown in FIG. 1A is referred to as a “closed state”. When the lid is opened (opening operation is performed), as shown in FIG. 1B, part of the inner surfaces of the first housing 12a and the second housing 12b are exposed. A state as shown in FIG. 1B is referred to as an “open state”.

  The outer surface of the second housing 12b functions as a display unit, and a display 14 such as a liquid crystal or an organic EL is provided, for example. A touch panel 16 is provided on the display surface of the display 14.

  A speaker 18 is built in the outer surface of one end of the second housing 12b in the sliding direction. A microphone 20 is built in the inner surface at the other end in the sliding direction of the first housing 12a.

  On the lower side of the display 14, together with the touch panel 16, a call key, an end key, and a menu key are provided as the first key input device 22 a constituting the input operation means. The second key input device 22b is provided with dial keys including “0”-“9” key, “*” key and “#” key on the inner surface exposed when sliding in the first housing 12a. It is done.

  A magnetic sensor 24 is built in the lower left of the inner surface of the first housing 12a. Moreover, although illustration is abbreviate | omitted, the magnet 84 (refer FIG. 2) is incorporated in the lower left of the inner surface of the 2nd housing | casing 12b. That is, the magnetic sensor 24 can detect the magnetism of the magnet 84 in the closed state. Therefore, in this embodiment, the closed state of the mobile phone 10 is determined based on the magnetism detected by the magnetic sensor 24.

  For example, the user can input a telephone number by operating a key on a dial key, and can start a voice call by operating the call key. If the end key is operated, the voice call can be terminated. Note that the user can turn on / off the power of the mobile phone 10 by pressing and holding the end call key.

  Further, if a menu key is operated, a menu screen is displayed on the display 14, and a touch operation on the touch panel 16 is performed on a soft key or a menu icon (both not shown) displayed on the display 14 in that state. By doing so, you can select a menu and confirm that choice.

  Referring to FIG. 2, the mobile phone 10 of the embodiment shown in FIGS. 1A and 1B includes a processor 30 called a computer or CPU. The processor 30 is built in the first housing 12a. The processor 30 includes the second key input device 22b, the magnetic sensor 24, the wireless communication circuit 32, the A / D converter 36, the flash memory 38, the RAM 40, and the first power management. The IC 42 and the first transmission / reception control unit 46 are connected. An antenna 34 is connected to the wireless communication circuit 32, and a microphone 20 is connected to the A / D converter 36. A first secondary battery 44 and a power supply terminal 60 are connected to the first power management IC 42. An electronic switch 48 is connected to the first transmission / reception control unit 46, and a first communication unit 50 a, a second communication unit 50 b, and a third communication unit 50 c are connected to the electronic switch 48.

  The second casing 12b incorporates a second transmission / reception control unit 70. The second transmission / reception control unit 70 includes a first key input device 22a, a fourth communication unit 72, a D / A converter 74, The display driver 76, the touch panel control circuit 78, and the second power management IC 80 are connected. The speaker 18 is connected to the D / A converter 74, the display 14 is connected to the display driver 76, and the touch panel 16 is connected to the touch panel control circuit 78. A second secondary battery 82 and a power supply terminal 62 are connected to the second power supply circuit IC80. Further, although not connected to other circuits and components, a magnet 84 is built in the second housing 12b.

  The processor 30 controls the entire mobile phone 10. In the RAM 40 functioning as a storage unit, all or a part of a program preset in the flash memory 38 is expanded when used, and the processor 30 operates according to the program on the RAM 40. The RAM 40 is further used as a working area or a buffer area for the processor 30.

  As shown in FIGS. 1A and 1B, the first key input device 22a includes a call key and a call end key. As shown in FIG. 1B, the second key input device 22b includes a numeric keypad. And the 1st key input device 22a and the 2nd key input device 22b comprise an operation part or an input part. Information on the keys operated by the user (key data) is input to the processor 30.

  The magnetic sensor 24 outputs the detected magnetism to the processor 30. The processor 30 detects the open state and the closed state of the mobile phone 10 based on the detected magnetism.

  The wireless communication circuit 32 is a circuit for transmitting and receiving radio waves for voice calls and mails through the antenna 34. In the embodiment, the wireless communication circuit 32 is a circuit for performing wireless communication by the CDMA method. For example, when the user operates a dial key to instruct a telephone call (calling), the wireless communication circuit 32 executes a telephone call process under the instruction of the processor 30 and outputs a telephone call signal via the antenna 34. To do. The telephone call signal is transmitted to the other party's telephone through the base station and the communication network. When an incoming call process is performed at the other party's telephone, a communicable state is established, and the processor 30 executes a call process.

  The audio signal from the microphone 20 is connected to digital audio data by the A / D converter 36 and input to the processor 30. The D / A converter 74 converts the digital audio data output from the second transmission / reception control unit 70 into an audio signal, and supplies the audio signal to the speaker 18 via the amplifier. Therefore, sound is output from the speaker 18.

  The display driver 76 is connected to the display 14 and the processor 30, and image data output from the processor 30 is stored in the VRAM of the display driver 76. The display driver 76 displays an image corresponding to the VRAM data on the display 14. That is, the display driver 76 controls display on the display 14 connected to the display driver 76 under the instruction of the processor 30. Further, the display 14 is provided with a backlight using, for example, an LED as a light source. The brightness of the backlight is adjusted based on the illuminance detected by the illuminance sensor 24.

  The touch panel control circuit 78 is connected to the touch panel 16 that functions as a pointing device. The touch panel control circuit 78 applies necessary power to the touch panel 16, and also includes a start signal indicating the start of touch by the user on the touch panel 16, an end signal indicating the end of touch by the user, and a touch position touched by the user. Is input to the processor 30. Therefore, the processor 30 can determine the icon or key operated by the user at that time based on the coordinate data. Note that a projection-type capacitance method is adopted as the detection method of the touch panel 16 of the present embodiment.

  The first power management IC 42 is connected to the first secondary battery 44. The first power management IC 42 supplies power based on the voltage of the first secondary battery 44 to the entire system. Here, when the first power management IC 42 supplies power to the entire system, it is referred to as a power-on state. On the other hand, when the first power management IC 42 is not supplying power to the entire system, it is referred to as a power-off state. The first power management IC 42 is activated when a power-on operation is performed in a power-off state, and is stopped when a power-off operation is performed in a power-on state. Further, even when the power is off, the first power management IC 42 is activated when an external power source is connected and power is supplied (charged) to the first secondary battery 44, and the first secondary battery 44 is fully charged. Stops when the state of charge is detected.

  The first power management IC 42 supplies power to the second power management IC 80 of the second housing 12b when the first power terminal 60 is connected to the second power terminal 62.

  The second power management IC 80 is connected to the second secondary battery 82. Then, the second power management IC 80 supplies the power supplied from the first power management IC 42 to each circuit and component built in the second housing 12b, and the second secondary battery 82 with the supplied power. To charge.

  For example, the first power supply terminal 60 is connected to the second power supply terminal 62 when closed. In this case, the second power management IC 80 receives supply of power from the first power management IC 42. Therefore, in the closed state, the circuits and components of the second housing 12b are supplied with power from the first power management IC 42, and the second secondary battery 82 is charged with the power supplied from the first power management IC 42. The Further, when the second housing 12 b is slid in the closed state, the first power supply terminal 60 is not connected to the second power supply terminal 62. In this case, the second power management IC 80 is not supplied with power from the first power management IC 42. Therefore, the second power management IC 80 supplies the power of the second secondary battery 82 to the circuits and components of the second housing 12b. That is, in a state other than the closed state, the circuits and components of the second housing 12b are driven by the power of the second secondary battery 82 built in the second housing 12b.

  The first transmission / reception control unit 46 includes a baseband IC. In addition, the first transmission / reception control unit 46 outputs the data output from the processor 30 to any one of the first to third communication units 50 connected via the electronic switch 48. The 1st transmission / reception control part 46 sets the 1st-3rd communication part 50 utilized for near field communication by controlling the electronic switch 48. FIG.

  The first communication unit 50a, the second communication unit 50b, the third communication unit 50c, and the fourth communication unit 72 each perform near field communication of NFC (Near Field Communication) communication standard. Therefore, the first communication unit 50a, the second communication unit 50b, the third communication unit 50c, and the fourth communication unit 72 include a short-range wireless communication circuit and a short-range wireless communication antenna. In the first embodiment, the first communication unit 50a, the second communication unit 50b, and the third communication unit 50c are built in the first housing 12a, and the fourth communication unit 72 is built in the second housing 12b. . And any one of the 1st-3rd communication part 50 incorporated in the 1st housing | casing 12a performs near field communication with the 4th communication part 72 incorporated in the 2nd housing | casing 12b.

  For example, when image or audio data output from the processor 30 is given to the first transmission / reception control unit 46, the data is set as a communication unit for communication (hereinafter referred to as a communication unit for communication). 50 to the fourth communication unit 72. The fourth communication unit 72 outputs the received data to the second transmission / reception control unit 70. The second transmission / reception controller 70 gives the data to the display driver 76 if the received data is an image, and gives the data to the D / A converter 74 if the received data is sound. As a result, an image is displayed on the display 14 provided in the second housing 12b, and sound is output from the speaker 18.

  The key data output from the first key input device 22a and touch coordinate data indicating the position of the touch operation are provided to the second transmission / reception control unit 70. Those data are transmitted from the 4th communication part 72, and those data are received by the communication part 50 set as a communication part for communication. The first transmission / reception control unit 46 outputs the data received by the communication unit 50 to the processor 30. As a result, the processor 30 performs processing based on the touch operation or the key operation.

  FIGS. 3A to 3C are cross-sectional views of the mobile phone 10 and show the positional relationship of the fourth communication unit 72 with respect to the first to third communication units 50. A first communication unit 50a, a second communication unit 50b, and a third communication unit 50c are provided inside the first housing 12a so as to be parallel to the sliding direction. A fourth communication unit 72 is provided inside the second housing 12b at one end in the sliding direction.

  As shown in FIG. 3A, the first communication unit 50a and the fourth communication unit 72 are close to each other in the closed state. As shown in FIG. 3B, the second communication unit 50b and the fourth communication unit 72 are close to each other in the intermediate state. And as shown in FIG.3 (C), in the open state, the 3rd communication part 50c and the 4th communication part 72 will be in a close state.

  Here, in the first embodiment, the communication state with the fourth communication unit 72 is the best based on the radio field strength (also referred to as electric field strength or reception level) between the first communication unit 50a and the fourth communication unit 72. The communication unit 50 to be used is specified, and a communication unit to be used for short-range wireless communication is set.

  In general, the closer the distance between the communication units, the better the communication state. Therefore, in this embodiment, the communication unit 50 with the best communication state is the communication unit 50 closest to the fourth communication unit 72. As an example, the following explanation is given.

  In the present embodiment, a confirmation signal is transmitted from the fourth communication unit 72 every predetermined time, and the radio field intensity of the confirmation signal received by the first communication unit 50a is measured. If the measured radio field intensity is equal to or higher than the first threshold, the first communication unit 50a is specified as the communication unit 50 closest to the fourth communication unit 72. In addition, if the radio wave intensity is less than the first threshold and greater than or equal to the second threshold smaller than the first threshold, the second communication unit 50b is identified as the communication unit 50 closest to the fourth communication unit 72. If the radio wave intensity is less than the second threshold, the third communication unit 50c is specified as the communication unit 50 closest to the fourth communication unit 72. Since the identified communication unit 50 has the best communication state, it is set as a communication unit for communication with the fourth communication unit 72 for short-range wireless communication.

  For example, in the closed state shown in FIG. 3A, the radio wave intensity is equal to or higher than the first threshold, so the first communication unit 50a is set as the communication unit for communication. In the intermediate state shown in FIG. 3B, the radio wave intensity is less than the first threshold and greater than or equal to the second threshold, so the second communication unit 50b is set as the communication unit for communication. And if it is an open state shown in Drawing 3 (C), since field intensity will be less than the 2nd threshold, the 3rd communications department 50c is set up as a communications department for communications.

  As described above, by using the radio field intensity of the wireless communication performed between the first housing 12a and the second housing 12b, it is possible to appropriately execute the wireless communication between the housings.

  Further, since the communication between the cases is performed by the short-range wireless communication, the movable range of the second case 12b relative to the first case 12a can be widened as compared with the case where the flexible cable is used. Moreover, since it is no longer necessary to provide a hole for winding the flexible harness in the housing, the cellular phone 10 can be easily waterproofed.

  In another embodiment, the first transmission / reception control unit 46 and the second transmission / reception control unit 70 may include a baseband IC and a short-range wireless communication circuit. In this case, the first to third communication units 50 and the communication unit 72 include only an antenna for short-range wireless communication.

  The characteristics of the first embodiment have been outlined above. The following description will be made in detail with reference to the memory map of the RAM 40 of the mobile phone 10 shown in FIG. 4 and the flowchart of the processor 30 of the mobile phone 10 shown in FIG. .

  Referring to FIG. 4, program storage area 302 and data storage area 304 are formed in RAM 40 shown in FIG. As described above, the program storage area 302 is an area for reading and storing (developing) part or all of the program data set in advance in the flash memory 38 (FIG. 2).

  The program storage area 302 stores a communication management program 310 for managing the communication unit for communication. The program storage area 302 includes a program for executing a telephone function and the like.

  In the data storage area 304 of the RAM 40, a radio wave intensity buffer 330, a magnetic buffer 332, a closed state flag 334, a polling counter 336, and the like are provided.

  The radio field intensity buffer 330 temporarily stores the measured radio field intensity. The magnetic buffer 332 temporarily stores magnetism measured by the magnetic sensor 24.

  The closed state flag 334 is a flag for determining whether it is in the closed state. For example, the closed state flag 334 is composed of a 1-bit register. When the closed state flag 334 is turned on (established), a data value “1” is set in the register. On the other hand, when the closed state flag 334 is turned off (not established), a data value “0” is set in the register. The closed state flag 334 is turned on when the detected magnetism is equal to or less than a predetermined value.

  The polling counter 336 is a counter for executing the communication management program 310 every predetermined time. Further, when the polling counter 336 is initialized, it starts counting and expires when a predetermined time elapses. Therefore, the polling counter 336 is also called a polling timer. Then, the polling counter 336 is initialized again when it expires. Thereby, the communication management processing program 310 is executed every predetermined time.

  The data storage area 304 stores image data displayed in a standby state, character string data, and the like, and is provided with counters and flags necessary for the operation of the mobile phone 10.

  The processor 30 processes a plurality of tasks in parallel, including the communication management process shown in FIG. 5 under the control of a Linux (registered trademark) -based OS such as Android (registered trademark) and REX, and other OSs. To do.

  The communication management process is started when the polling timer expires. In step S <b> 1, the processor 30 starts transmitting a confirmation signal from the fourth communication unit 72. That is, the processor 30 issues a confirmation signal transmission command to the second transmission / reception control unit 70. Thereby, a confirmation signal is transmitted from the fourth communication unit 72. The processor 30 that executes the process of step S1 functions as a transmission control unit.

  Subsequently, in step S3, the processor 30 starts receiving a confirmation signal by the first communication unit. That is, the processor 30 issues a confirmation signal reception command from the first communication unit 50 a to the first transmission / reception control unit 46. The 1st transmission / reception control part 46 switches the electronic switch 48, connects with the 1st communication part 50a, and receives the confirmation signal by the 1st communication part 50a.

  Subsequently, in step S5, the processor 30 measures the radio field intensity. That is, the radio field intensity of the confirmation signal received by the first communication unit 50a is measured. The measurement result is stored in the radio wave intensity buffer 330. Subsequently, in step S7, the processor 30 stops the transmission of the confirmation signal. That is, the processor 30 issues a command to stop the transmission of the confirmation signal to the second transmission / reception control unit 70.

  Subsequently, the processor 30 determines whether or not the radio field intensity is equal to or higher than a first threshold value. That is, it is determined whether the radio wave intensity stored in the radio wave intensity buffer 330 is greater than or equal to the first threshold value. If “YES” in the step S9, that is, if the radio wave intensity is above the first threshold value, the processor 30 sets the first communication unit 50a for communication in a step S11, and ends the communication management process. That is, the first communication unit 50a is set as a communication unit for communication.

  If “NO” in the step S9, that is, if the radio wave intensity is less than the first threshold value, the processor 30 determines whether or not the radio wave intensity is above the second threshold value in a step S13. That is, it is determined whether the radio wave intensity is less than the first threshold and greater than or equal to the second threshold. If “YES” in the step S13, that is, if the radio wave intensity is equal to or greater than the second threshold value, the processor 30 sets the second communication unit 50b for communication in a step S15, and ends the communication management process. That is, the second communication unit 50b is set as a communication unit for communication.

  On the other hand, if “NO” in the step S13, that is, if the radio wave intensity is less than the second threshold value, the processor 30 sets the third communication unit 50c for communication in a step S17 and ends the communication management process. .

  The processor 30 that executes the processes of steps S9 and S13 functions as a specifying unit. The processor 30 that executes the processes of steps S11, S15, and S17 functions as a setting unit.

<Second embodiment>
In the second embodiment, one first communication unit 50 is provided in the first housing 12a, and the second housing communication unit 72a, the third communication unit 72b, and the first communication unit 50 are provided in the second housing 12b. Four communication units 72c are provided. Further, the electronic switch 48 is built in the second housing 12b, not the first housing 12a. Since other configurations are substantially the same as those of the first embodiment, detailed description thereof is omitted.

  FIGS. 7A to 7C are cross-sectional views of the mobile phone 10 of the second embodiment, and show the positional relationship of the second to fourth communication units 72 with respect to the first communication unit 50.

  As shown in FIG. 7A, in the closed state, the first communication unit 50 and the second communication unit 72a are close to each other. As shown in FIG. 7B, in the intermediate state, the first communication unit 50 and the third communication unit 72b are close to each other. Then, as shown in FIG. 7C, the first communication unit 50 and the fourth communication unit 72c are close to each other in the open state.

  In the second embodiment, the confirmation signal is not a signal for measuring the radio field intensity, but a communication signal for other purposes is used. That is, since a signal (data) is often transmitted mainly from the first housing 12a to the second housing 12b, a communication unit that is closest to the first communication unit 50 efficiently by using the signal. 72 can be specified.

<Third embodiment>
The third embodiment has substantially the same configuration as the first embodiment, and outputs a confirmation signal from each of the first to third communication units 50, and each time a confirmation signal is received by the fourth communication unit 72, Is recorded. And the communication part 50 corresponding to the largest electric field strength is set as a communication part for communication.

  Referring to FIG. 8, each radio wave intensity is recorded in a radio wave intensity table. The radio wave intensity table includes a communication unit column and a radio wave intensity column. For example, in FIG. 8, “XXX” is recorded as the radio wave intensity corresponding to the first communication unit 50a, “YYY” is recorded as the radio wave intensity corresponding to the second communication unit 50b, and the radio wave intensity corresponds to the third communication unit 50b. “ZZZ” is recorded as the radio wave intensity.

  As described above, in the third embodiment, the communication unit for communication can be set more appropriately by recording the radio wave intensity corresponding to each of the first to third communication units 50.

  The characteristics of the third embodiment have been outlined above. The following description will be made in detail with reference to the memory map of the third embodiment shown in FIG. 9 and the flowchart of the third embodiment shown in FIG.

  Referring to FIG. 9, radio wave intensity table data 338 having the configuration shown in FIG. 8 is further stored in data storage area 304 of the third embodiment.

  FIG. 10 is a part of a flowchart of the communication management process of the third embodiment. The communication management process of the third embodiment is started when the polling timer expires. In step S31, the processor 30 initializes a variable n. That is, the variable n for identifying each of the first to third communication units 50 is initialized. The variable n is set to “1” when initialized.

  Subsequently, in step S <b> 33, the processor 30 starts transmitting a confirmation signal from the nth communication unit 50. For example, if the variable n is “1”, a confirmation signal is transmitted from the first communication unit 50a. The processor 30 that executes the process of step S33 functions as a transmission control unit.

  Subsequently, in step S <b> 35, a confirmation signal is received by the fourth communication unit 72. For example, the confirmation signal transmitted from the first communication unit 50 a is received by the fourth communication unit 72. Subsequently, in step S37, the processor 30 measures the radio wave intensity. That is, the radio field intensity of the confirmation signal received by the fourth communication unit 72 is measured.

  Subsequently, in step S39, the processor 30 records the radio wave intensity of the nth communication unit 50 in the radio wave intensity table. For example, if the variable n is “1”, the radio wave intensity measured in step S37 is recorded in the radio wave intensity table data 338 as the radio wave intensity corresponding to the first communication unit 50a. The processor 30 that executes the process of step S39 functions as a recording unit.

  Subsequently, in step S41, the processor 30 stops transmitting the confirmation signal. For example, the confirmation signal is not transmitted from the first communication unit 50a.

  Subsequently, in step S43, the processor 30 determines whether or not the variable n matches the constant M. Here, the constant M indicates the number of communication units 50 provided in the first housing 12a. Therefore, the constant M is “3” in the third embodiment. In step S43, it is determined whether confirmation signals have been transmitted from all the communication units 50. If “NO” in the step S43, that is, if confirmation signals are not transmitted from all the communication units 50, the processor 30 increments the variable n in a step S45, and returns to the step S33. That is, the processor 30 changes the value of the variable n in order to transmit a confirmation signal from the other communication unit 50.

  On the other hand, if “YES” in the step S43, that is, if confirmation signals are transmitted from all the communication units 50, the processor 30 specifies the highest radio wave intensity from the radio wave intensity table in a step S47. That is, the communication unit 50 closest to the fourth communication unit 72 is specified. The processor 30 that executes the process of step S47 functions as a specifying unit.

  Subsequently, in step S49, the processor 30 sets a communication unit corresponding to the highest radio field intensity for communication. For example, if the radio field intensity corresponding to the radio field intensity corresponding to the second communication unit 50b is the highest, the second communication unit 50b is set as the communication unit for communication. And if the process of step S49 is complete | finished, a communication management process will be complete | finished. The processor 30 that executes the process of step S49 functions as a setting unit.

<Fourth embodiment>
In the fourth embodiment, when the closed state is detected, the first communication unit 50a is set as the communication unit for communication. That is, since the fourth communication unit 72 and the first communication unit 50a are closest in the closed state, the first communication unit 50a does not measure the radio wave intensity of the confirmation signal when the closed state is detected, and the communication unit for communication Set as Further, in a state other than the closed state, that is, in the intermediate state and the open state, the communication unit for communication is set based on the radio wave intensity of the confirmation signal as in the first embodiment.

  As described above, in the fourth embodiment, since the transmission frequency of the confirmation signal can be suppressed, the power consumed by transmitting and receiving the confirmation signal can be suppressed.

  The characteristics of the fourth embodiment have been outlined above. The following describes in detail using the flowchart of the fourth embodiment shown in FIG.

  FIG. 11 is a flowchart of the communication management process of the fourth embodiment. In FIG. 11, the same steps as those of the first embodiment are denoted by the same step numbers as those of the first embodiment, and detailed description thereof is omitted.

  The communication management process of the fourth embodiment is started when the polling timer expires. In step S61, the processor 30 determines whether or not it is in a closed state. That is, it is determined whether the closed state flag 334 is on. The processor 30 that executes the process of step S61 functions as a specifying unit.

  If “YES” in the step S61, that is, if it is in a closed state, the processor 30 sets the first communication unit 50a for communication in a step S11, and ends the communication management process.

  On the other hand, if “NO” in the step S61, that is, if not in the closed state, the processor 30 sequentially executes the steps S1 to S7. That is, the radio field intensity of the confirmation signal is measured.

  Subsequently, in step S13, the processor 30 determines whether or not the radio wave intensity is equal to or greater than a second threshold value. That is, since the mobile phone 10 is in the intermediate state or the open state, it is determined whether the radio wave intensity is above the second threshold value. If “YES” in the step S13, that is, if the radio wave intensity is equal to or greater than the second threshold value, the processor 30 sets the second communication unit for communication in a step S15, and ends the communication management process. On the other hand, if “NO” in the step S13, that is, if the radio wave intensity is less than the second threshold value, the processor 30 sets the third communication unit for communication in a step S17, and ends the communication management process.

  In addition, about 1st Example-4th Example, since it is possible to combine arbitrarily and a specific combination can be imagined easily, detailed description is abbreviate | omitted.

  In addition, the first communication unit 50a, the second communication unit 50b, the third communication unit 50c, and the fourth communication unit 72 in the first embodiment, the third embodiment, and the fourth embodiment, and the first communication in the second embodiment. The unit 50, the second communication unit 72a, the third communication unit 72b, and the fourth communication unit 72c are each provided with a signal transmission function and a reception function, but the present invention is not limited to such a case. Absent.

  For example, even if the first communication unit 50a, the second communication unit 50b, and the third communication unit 50c have no signal transmission function and a reception function, and the fourth communication unit 72 has no signal reception function and a transmission function. Good. Further, even if the first communication unit 50a, the second communication unit 50b, and the third communication unit 50c have no signal reception function and have a transmission function, the fourth communication unit 72 has no signal transmission function and has a reception function. good.

  Further, the second communication unit 72a, the third communication unit 72b, and the fourth communication unit 72c have a transmission function without a signal reception function, and the first communication unit 50 has a reception function without a signal transmission function. Also good. Also, the second communication unit 72a, the third communication unit 72b, and the fourth communication unit 72c have no signal transmission function and have a reception function, and the first communication unit 50 has no signal reception function and has a transmission function. Also good.

  In another embodiment, the number of the plurality of communication units 50 (72) built in the first casing 12a or the second casing 12b may be four or more.

  In other embodiments, a capacitor (capacitor) may be used instead of the second secondary battery 82 built in the second housing 12b.

  In still other embodiments, short-range wireless communication of Bluetooth (registered trademark) communication standard may be adopted instead of short-range wireless communication of NFC communication standard. Further, short-range wireless communication of a standard called UWB (Ultra Wide Band) including Wireless USB may be employed.

  In another embodiment, the magnetic sensor 24 and the magnet 84 may be provided to detect an open state. Furthermore, in another embodiment, the closed state may be detected when the second power management IC 80 is supplied with power from the first power management IC.

  The program used in this embodiment may be stored in the HDD of the data distribution server and distributed to the mobile phone 10 via the network. Further, the storage medium may be sold or distributed in a state where a plurality of programs are stored in a storage medium such as an optical disk such as a CD, DVD, or BD, a USB memory, or a memory card. When the program downloaded through the above-described server or storage medium is installed in a mobile communication terminal having the same configuration as that of this embodiment, the same effect as that of this embodiment can be obtained.

  The specific numerical values given in this specification are merely examples, and can be appropriately changed according to a change in product specifications.

DESCRIPTION OF SYMBOLS 10 ... Mobile phone 14 ... Display 24 ... Magnetic sensor 30 ... Processor 38 ... Flash memory 40 ... RAM
46 ... 1st transmission / reception control part 48 ... Electronic switch 50a-50c ... Communication part 70 ... 2nd transmission / reception control part 72a-72c ... Communication part 84 ... Magnet

Claims (7)

A mobile communication terminal having a first housing and a second housing slidably attached to the first housing,
A first communication unit provided inside the first housing at one end in the sliding direction of the first housing;
A plurality of second communication units provided inside the second housing so as to be parallel to a sliding direction of the second housing;
A transmission control unit for transmitting a confirmation signal from the first communication unit; and a first communication unit among the plurality of second communication units based on a radio field intensity of the confirmation signal received by the second communication unit; A mobile communication terminal comprising a setting unit for setting a second communication unit for communication. A magnetic sensor provided in the first housing, and a magnet provided in the second housing so as to be closest to the magnetic sensor in the closed state;
The said setting part sets the 2nd communication part for communicating with a said 1st communication part from among these several 2nd communication parts, when the said magnetic sensor detects the magnetism of the said magnet. Mobile communication terminals. A first housing, a second housing that is slidably attached to the first housing, a first communication unit provided inside the first housing at one end in a sliding direction of the first housing, and A processor of a mobile communication terminal having a plurality of second communication units provided inside the second casing so as to be parallel to the sliding direction of the second casing.
A transmission control unit for transmitting a confirmation signal from the first communication unit; and a first communication unit among the plurality of second communication units based on a radio field intensity of the confirmation signal received by the second communication unit; A communication management program that functions as a setting unit that sets a second communication unit for communication. A first housing, a second housing that is slidably attached to the first housing, a first communication unit provided inside the first housing at one end in a sliding direction of the first housing, and A communication management method for a mobile communication terminal, comprising a plurality of second communication units provided inside the second casing so as to be parallel to the sliding direction of the second casing,
For transmitting a confirmation signal from the first communication unit and communicating with the first communication unit from among the plurality of second communication units based on the radio wave intensity of the confirmation signal received by the second communication unit A communication management method for setting the second communication unit. A mobile communication terminal having a first housing and a second housing slidably attached to the first housing,
A first communication unit provided inside the first housing at one end in the sliding direction of the first housing;
A plurality of second communication units provided inside the second housing so as to be parallel to a sliding direction of the second housing;
A transmission control unit that transmits a confirmation signal from each of the plurality of second communication units, and the plurality of second transmission units based on confirmation signals transmitted from the plurality of second transmission control units received by the first communication unit. A mobile communication terminal comprising a setting unit for setting a second communication unit for communicating with the first communication unit from among the communication units. A first housing, a second housing that is slidably attached to the first housing, a first communication unit provided inside the first housing at one end in a sliding direction of the first housing, and A processor of a mobile communication terminal having a plurality of second communication units provided inside the second casing so as to be parallel to the sliding direction of the second casing.
A transmission control unit that transmits a confirmation signal from each of the plurality of second communication units, and the plurality of second transmission units based on confirmation signals transmitted from the plurality of second transmission control units received by the first communication unit. A communication management program for causing a communication unit to function as a setting unit for setting a second communication unit for communicating with the first communication unit. A first housing, a second housing that is slidably attached to the first housing, a first communication unit provided inside the first housing at one end in a sliding direction of the first housing, and A communication management method for a mobile communication terminal, comprising a plurality of second communication units provided inside the second casing so as to be parallel to the sliding direction of the second casing,
A confirmation signal is transmitted from each of the plurality of second communication units, and based on the confirmation signal transmitted from the plurality of second transmission control units received by the first communication unit, the plurality of second communication units A communication management method for setting a second communication unit for communicating with the first communication unit.

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